#false cat << "EOF" > tmp /** @pred wam_profiler_show_ops_by_group(+ _A_) Display the current value for the counters, organized by groups, using label _A_. The label must be an atom. */ EOF sed -e "872r tmp" /Users/vsc/git/yap-6.3/C/analyst.c > x mv x /Users/vsc/git/yap-6.3/C/analyst.c #false cat << "EOF" > tmp /** @pred wam_profiler_show_op_counters(+ _A_) Display the current value for the counters, using label _A_. The label must be an atom. */ EOF sed -e "863r tmp" /Users/vsc/git/yap-6.3/C/analyst.c > x mv x /Users/vsc/git/yap-6.3/C/analyst.c #false cat << "EOF" > tmp /** @pred wam_profiler_reset_op_counters Reinitialize all counters. */ EOF sed -e "855r tmp" /Users/vsc/git/yap-6.3/C/analyst.c > x mv x /Users/vsc/git/yap-6.3/C/analyst.c #false cat << "EOF" > tmp /** @pred static_array_location(+ _Name_, - _Ptr_) Give the location for a static array with name _Name_. */ EOF sed -e "2636r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred static_array_to_term(? _Name_, ? _Term_) Convert a static array with name _Name_ to a compound term of name _Name_. This built-in will silently fail if the there is no static array with that name. */ EOF sed -e "2635r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred close_static_array(+ _Name_) Close an existing static array of name _Name_. The _Name_ must be an atom (named array). Space for the array will be recovered and further accesses to the array will return an error. */ EOF sed -e "2630r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred reset_static_array(+ _Name_) Reset static array with name _Name_ to its initial value. */ EOF sed -e "2629r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred array_element(+ _Name_, + _Index_, ? _Element_) Unify _Element_ with _Name_[ _Index_]. It works for both static and dynamic arrays, but it is read-only for static arrays, while it can be used to unify with an element of a dynamic array. */ EOF sed -e "2628r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred add_to_array_element(+ _Name_, + _Index_, + _Number_, ? _NewValue_) Add _Number_ _Name_[ _Index_] and unify _NewValue_ with the incremented value. Observe that _Name_[ _Index_] must be an number. If _Name_ is a static array the type of the array must be `int` or `float`. If the type of the array is `int` you only may add integers, if it is `float` you may add integers or floats. If _Name_ corresponds to a dynamic array the array element must have been previously bound to a number and `Number` can be any kind of number. The `add_to_array_element/3` built-in actually uses `setarg/3` to update elements of dynamic arrays. For intensive operations we suggest it may be less expensive to unify each element of the array with a mutable terms and to use the operations on mutable terms. */ EOF sed -e "2627r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred update_array(+ _Name_, + _Index_, ? _Value_) Attribute value _Value_ to _Name_[ _Index_]. Type restrictions must be respected for static arrays. This operation is available for dynamic arrays if `MULTI_ASSIGNMENT_VARIABLES` is enabled (true by default). Backtracking undoes _update_array/3_ for dynamic arrays, but not for static arrays. Note that update_array/3 actually uses `setarg/3` to update elements of dynamic arrays, and `setarg/3` spends an extra cell for every update. For intensive operations we suggest it may be less expensive to unify each element of the array with a mutable terms and to use the operations on mutable terms. */ EOF sed -e "2625r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred mmapped_array(+ _Name_, + _Size_, + _Type_, + _File_) Similar to static_array/3, but the array is memory mapped to file _File_. This means that the array is initialized from the file, and that any changes to the array will also be stored in the file. This built-in is only available in operating systems that support the system call `mmap`. Moreover, mmapped arrays do not store generic terms (type `term`). */ EOF sed -e "2624r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred resize_static_array(+ _Name_, - _OldSize_, + _NewSize_) Expand or reduce a static array, The _Size_ must evaluate to an integer. The _Name_ must be an atom (named array). The _Type_ must be bound to one of `int`, `dbref`, `float` or `atom`. Note that if the array is a mmapped array the size of the mmapped file will be actually adjusted to correspond to the size of the array. */ EOF sed -e "2623r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred static_array(+ _Name_, + _Size_, + _Type_) Create a new static array with name _Name_. Note that the _Name_ must be an atom (named array). The _Size_ must evaluate to an integer. The _Type_ must be bound to one of types mentioned previously. */ EOF sed -e "2622r tmp" /Users/vsc/git/yap-6.3/C/arrays.c > x mv x /Users/vsc/git/yap-6.3/C/arrays.c #false cat << "EOF" > tmp /** @pred atomic_concat(+ _As_,? _A_) The predicate holds when the first argument is a list of atomic terms, and the second unifies with the atom obtained by concatenating all the atomic terms in the first list. The first argument thus may contain atoms or numbers. */ EOF sed -e "2335r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred atom_number(? _Atom_,? _Number_) The predicate holds when at least one of the arguments is ground (otherwise, an error message will be displayed). If the argument _Atom_ is an atom, _Number_ must be the number corresponding to the characters in _Atom_, otherwise the characters in _Atom_ must encode a number _Number_. */ EOF sed -e "2320r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred number_atom(? _I_,? _L_) The predicate holds when at least one of the arguments is ground (otherwise, an error message will be displayed). The argument _I_ must be unifiable with a number, and the argument _L_ must be unifiable with an atom representing the number. */ EOF sed -e "2306r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred number_chars(? _I_,? _L_) is iso The predicate holds when at least one of the arguments is ground (otherwise, an error message will be displayed). The argument _I_ must be unifiable with a number, and the argument _L_ with the list of the characters of the external representation of _I_. */ EOF sed -e "2296r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred atom_length(+ _A_,? _I_) is iso The predicate holds when the first argument is an atom, and the second unifies with the number of characters forming that atom. */ EOF sed -e "2284r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred atom_chars(? _A_,? _L_) is iso The predicate holds when at least one of the arguments is ground (otherwise, an error message will be displayed). The argument _A_ must be unifiable with an atom, and the argument _L_ with the list of the characters of _A_. */ EOF sed -e "2270r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred char_code(? _A_,? _I_) is iso The built-in succeeds with _A_ bound to character represented as an atom, and _I_ bound to the character code represented as an integer. At least, one of either _A_ or _I_ must be bound before the call. */ EOF sed -e "2259r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred name( _A_, _L_) The predicate holds when at least one of the arguments is ground (otherwise, an error message will be displayed). The argument _A_ will be unified with an atomic symbol and _L_ with the list of the ASCII codes for the characters of the external representation of _A_. ~~~~~{.prolog} name(yap,L). ~~~~~ will return: ~~~~~{.prolog} L = [121,97,112]. ~~~~~ and ~~~~~{.prolog} name(3,L). ~~~~~ will return: ~~~~~{.prolog} L = [51]. ~~~~~ */ EOF sed -e "2225r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred sub_atom(+ _A_,? _Bef_, ? _Size_, ? _After_, ? _At_out_) is iso True when _A_ and _At_out_ are atoms such that the name of _At_out_ has size _Size_ and is a sub-string of the name of _A_, such that _Bef_ is the number of characters before and _After_ the number of characters afterwards. Note that _A_ must always be known, but _At_out_ can be unbound when calling this built-in. If all the arguments for sub_atom/5 but _A_ are unbound, the built-in will backtrack through all possible sub-strings of _A_. */ EOF sed -e "2199r tmp" /Users/vsc/git/yap-6.3/C/atomic.c > x mv x /Users/vsc/git/yap-6.3/C/atomic.c #false cat << "EOF" > tmp /** @pred attvar( _-Var_) Succeed if _Var_ is an attributed variable. */ EOF sed -e "1106r tmp" /Users/vsc/git/yap-6.3/C/attvar.c > x mv x /Users/vsc/git/yap-6.3/C/attvar.c #false cat << "EOF" > tmp /** @pred rational( _T_) Checks whether `T` is a rational number. */ EOF sed -e "566r tmp" /Users/vsc/git/yap-6.3/C/bignum.c > x mv x /Users/vsc/git/yap-6.3/C/bignum.c #false cat << "EOF" > tmp /** @pred compare( _C_, _X_, _Y_) is iso As a result of comparing _X_ and _Y_, _C_ may take one of the following values: + `=` if _X_ and _Y_ are identical; + `<` if _X_ precedes _Y_ in the defined order; + `>` if _Y_ precedes _X_ in the defined order; + _X_ == _Y_ is iso Succeeds if terms _X_ and _Y_ are strictly identical. The difference between this predicate and =/2 is that, if one of the arguments is a free variable, it only succeeds when they have already been unified. ~~~~~{.prolog} ?- X == Y. ~~~~~ fails, but, ~~~~~{.prolog} ?- X = Y, X == Y. ~~~~~ succeeds. ~~~~~{.prolog} ?- X == 2. ~~~~~ fails, but, ~~~~~{.prolog} ?- X = 2, X == 2. ~~~~~ succeeds. */ EOF sed -e "932r tmp" /Users/vsc/git/yap-6.3/C/cmppreds.c > x mv x /Users/vsc/git/yap-6.3/C/cmppreds.c #false cat << "EOF" > tmp /** @pred _X_ @>= _Y_ is iso Term _X_ does not precede term _Y_ in the standard order. */ EOF sed -e "931r tmp" /Users/vsc/git/yap-6.3/C/cmppreds.c > x mv x /Users/vsc/git/yap-6.3/C/cmppreds.c #false cat << "EOF" > tmp /** @pred _X_ @> _Y_ is iso Term _X_ follows term _Y_ in the standard order. */ EOF sed -e "930r tmp" /Users/vsc/git/yap-6.3/C/cmppreds.c > x mv x /Users/vsc/git/yap-6.3/C/cmppreds.c #false cat << "EOF" > tmp /** @pred _X_ @=< _Y_ is iso Term _X_ does not follow term _Y_ in the standard order. */ EOF sed -e "929r tmp" /Users/vsc/git/yap-6.3/C/cmppreds.c > x mv x /Users/vsc/git/yap-6.3/C/cmppreds.c #false cat << "EOF" > tmp /** @pred _X_ @< _Y_ is iso Term _X_ precedes term _Y_ in the standard order. */ EOF sed -e "928r tmp" /Users/vsc/git/yap-6.3/C/cmppreds.c > x mv x /Users/vsc/git/yap-6.3/C/cmppreds.c #false cat << "EOF" > tmp /** @pred _X_ \== _Y_ is iso Terms _X_ and _Y_ are not strictly identical. */ EOF sed -e "927r tmp" /Users/vsc/git/yap-6.3/C/cmppreds.c > x mv x /Users/vsc/git/yap-6.3/C/cmppreds.c #false cat << "EOF" > tmp /** @pred key_statistics(+ _K_,- _Entries_,- _Size_,- _IndexSize_) Returns several statistics for a key _K_. Currently, it says how many entries we have for that key, _Entries_, what is the total size spent on entries, _Size_, and what is the amount of space spent in indices. */ EOF sed -e "5684r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred eraseall(+ _K_) All terms belonging to the key `K` are erased from the internal database. The predicate always succeeds. */ EOF sed -e "5667r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred instance(+ _R_,- _T_) If _R_ refers to a clause or a recorded term, _T_ is unified with its most general instance. If _R_ refers to an unit clause _C_, then _T_ is unified with ` _C_ :- true`. When _R_ is not a reference to an existing clause or to a recorded term, this goal fails. */ EOF sed -e "5665r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred erased(+ _R_) Succeeds if the object whose database reference is _R_ has been erased. */ EOF sed -e "5664r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred erase(+ _R_) The term referred to by _R_ is erased from the internal database. If reference _R_ does not exist in the database, `erase` just fails. */ EOF sed -e "5659r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred recordz_at(+ _R0_, _T_,- _R_) Makes term _T_ the record following record with reference _R0_, and unifies _R_ with its reference. */ EOF sed -e "5654r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred recorda_at(+ _R0_, _T_,- _R_) Makes term _T_ the record preceding record with reference _R0_, and unifies _R_ with its reference. */ EOF sed -e "5653r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred recordz(+ _K_, _T_,- _R_) Makes term _T_ the last record under key _K_ and unifies _R_ with its reference. */ EOF sed -e "5651r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred recorda(+ _K_, _T_,- _R_) Makes term _T_ the first record under key _K_ and unifies _R_ with its reference. */ EOF sed -e "5642r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred recorded(+ _K_, _T_, _R_) Searches in the internal database under the key _K_, a term that unifies with _T_ and whose reference matches _R_. This built-in may be used in one of two ways: + _K_ may be given, in this case the built-in will return all elements of the internal data-base that match the key. + _R_ may be given, if so returning the key and element that match the reference. */ EOF sed -e "5626r tmp" /Users/vsc/git/yap-6.3/C/dbase.c > x mv x /Users/vsc/git/yap-6.3/C/dbase.c #false cat << "EOF" > tmp /** @pred between(+ _Low_,+ _High_,? _Value_) _Low_ and _High_ are integers, _High_ less or equal than _Low_. If _Value_ is an integer, _Low_ less or equal than _Value_ less or equal than _High_. When _Value_ is a variable it is successively bound to all integers between _Low_ and _High_. If _High_ is `inf`, between/3 is true iff _Value_ less or equal than _Low_, a feature that is particularly interesting for generating integers from a certain value. */ EOF sed -e "622r tmp" /Users/vsc/git/yap-6.3/C/eval.c > x mv x /Users/vsc/git/yap-6.3/C/eval.c #false cat << "EOF" > tmp /** @pred nb_delete(? _Name_) Delete the named global variable. */ EOF sed -e "2850r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred nb_delete(+ _Name_) Delete the named global variable. Global variables have been introduced by various Prolog implementations recently. We follow the implementation of them in SWI-Prolog, itself based on hProlog by Bart Demoen. GNU-Prolog provides a rich set of global variables, including arrays. Arrays can be implemented easily in YAP and SWI-Prolog using functor/3 and `setarg/3` due to the unrestricted arity of compound terms. */ EOF sed -e "2850r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred nb_linkarg(+ _Arg_, + _Term_, + _Value_) As nb_setarg/3, but like nb_linkval/2 it does not duplicate _Value_. Use with extreme care and consult the documentation of nb_linkval/2 before use. */ EOF sed -e "2839r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred nb_set_shared_arg(+ _Arg_, + _Term_, + _Value_) As nb_setarg/3, but like nb_linkval/2 it does not duplicate the global sub-terms in _Value_. Use with extreme care and consult the documentation of nb_linkval/2 before use. */ EOF sed -e "2828r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred nb_setarg(+{Arg], + _Term_, + _Value_) Assigns the _Arg_-th argument of the compound term _Term_ with the given _Value_ as setarg/3, but on backtracking the assignment is not reversed. If _Term_ is not atomic, it is duplicated using duplicate_term/2. This predicate uses the same technique as nb_setval/2. We therefore refer to the description of nb_setval/2 for details on non-backtrackable assignment of terms. This predicate is compatible to GNU-Prolog `setarg(A,T,V,false)`, removing the type-restriction on _Value_. See also nb_linkarg/3. Below is an example for counting the number of solutions of a goal. Note that this implementation is thread-safe, reentrant and capable of handling exceptions. Realising these features with a traditional implementation based on assert/retract or flag/3 is much more complicated. ~~~~~ succeeds_n_times(Goal, Times) :- Counter = counter(0), ( Goal, arg(1, Counter, N0), N is N0 + 1, nb_setarg(1, Counter, N), fail ; arg(1, Counter, Times) ). ~~~~~ */ EOF sed -e "2795r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred nb_linkval(+ _Name_, + _Value_) Associates the term _Value_ with the atom _Name_ without copying it. This is a fast special-purpose variation of nb_setval/2 intended for expert users only because the semantics on backtracking to a point before creating the link are poorly defined for compound terms. The principal term is always left untouched, but backtracking behaviour on arguments is undone if the original assignment was trailed and left alone otherwise, which implies that the history that created the term affects the behaviour on backtracking. Please consider the following example: ~~~~~ demo_nb_linkval :- T = nice(N), ( N = world, nb_linkval(myvar, T), fail ; nb_getval(myvar, V), writeln(V) ). ~~~~~ */ EOF sed -e "2767r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred nb_set_shared_val(+ _Name_, + _Value_) Associates the term _Value_ with the atom _Name_, but sharing non-backtrackable terms. This may be useful if you want to rewrite a global variable so that the new copy will survive backtracking, but you want to share structure with the previous term. The next example shows the differences between the three built-ins: ~~~~~ ?- nb_setval(a,a(_)),nb_getval(a,A),nb_setval(b,t(C,A)),nb_getval(b,B). A = a(_A), B = t(_B,a(_C)) ? ?- nb_setval(a,a(_)),nb_getval(a,A),nb_set_shared_val(b,t(C,A)),nb_getval(b,B). ?- nb_setval(a,a(_)),nb_getval(a,A),nb_linkval(b,t(C,A)),nb_getval(b,B). A = a(_A), B = t(C,a(_A)) ? ~~~~~ */ EOF sed -e "2742r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred nb_setval(+ _Name_,+ _Value_) Associates a copy of _Value_ created with duplicate_term/2 with the atom _Name_. Note that this can be used to set an initial value other than `[]` prior to backtrackable assignment. */ EOF sed -e "2723r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred nb_setval(+ _Name_, + _Value_) Associates a copy of _Value_ created with duplicate_term/2 with the atom _Name_. Note that this can be used to set an initial value other than `[]` prior to backtrackable assignment. */ EOF sed -e "2723r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred b_setval(+ _Name_,+ _Value_) Associate the term _Value_ with the atom _Name_ or replaces the currently associated value with _Value_. If _Name_ does not refer to an existing global variable a variable with initial value `[]` is created (the empty list). On backtracking the assignment is reversed. */ EOF sed -e "2700r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred b_setval(+ _Name_, + _Value_) Associate the term _Value_ with the atom _Name_ or replaces the currently associated value with _Value_. If _Name_ does not refer to an existing global variable a variable with initial value [] is created (the empty list). On backtracking the assignment is reversed. */ EOF sed -e "2700r tmp" /Users/vsc/git/yap-6.3/C/globals.c > x mv x /Users/vsc/git/yap-6.3/C/globals.c #false cat << "EOF" > tmp /** @pred functor( _T_, _F_, _N_) is iso The top functor of term _T_ is named _F_ and has arity _N_. When _T_ is not instantiated, _F_ and _N_ must be. If _N_ is 0, _F_ must be an atomic symbol, which will be unified with _T_. If _N_ is not 0, then _F_ must be an atom and _T_ becomes instantiated to the most general term having functor _F_ and arity _N_. If _T_ is instantiated to a term then _F_ and _N_ are respectively unified with its top functor name and arity. In the current version of YAP the arity _N_ must be an integer. Previous versions allowed evaluable expressions, as long as the expression would evaluate to an integer. This feature is not available in the ISO Prolog standard. */ EOF sed -e "1108r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred _X_ \= _Y_ is iso Succeeds if terms _X_ and _Y_ are not unifiable. */ EOF sed -e "1105r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred _X_ = _Y_ is iso Tries to unify terms _X_ and _Y_. */ EOF sed -e "1104r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred float( _T_) is iso Checks whether _T_ is a floating point number. */ EOF sed -e "1103r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred compound( _T_) is iso Checks whether _T_ is a compound term. */ EOF sed -e "1102r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred db_reference( _T_) Checks whether _T_ is a database reference. */ EOF sed -e "1100r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred var( _T_) is iso Succeeds if _T_ is currently a free variable, otherwise fails. */ EOF sed -e "1099r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred number( _T_) is iso Checks whether `T` is an integer, rational or a float. */ EOF sed -e "1098r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred nonvar( _T_) is iso The opposite of `var( _T_)`. */ EOF sed -e "1097r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred integer( _T_) is iso Succeeds if and only if _T_ is currently instantiated to an integer. */ EOF sed -e "1096r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred atomic(T) is iso Checks whether _T_ is an atomic symbol (atom or number). */ EOF sed -e "1095r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred atom( _T_) is iso Succeeds if and only if _T_ is currently instantiated to an atom. */ EOF sed -e "1094r tmp" /Users/vsc/git/yap-6.3/C/inlines.c > x mv x /Users/vsc/git/yap-6.3/C/inlines.c #false cat << "EOF" > tmp /** @pred stream_select(+ _STREAMS_,+ _TIMEOUT_,- _READSTREAMS_) Given a list of open _STREAMS_ opened in read mode and a _TIMEOUT_ return a list of streams who are now available for reading. If the _TIMEOUT_ is instantiated to `off`, stream_select/3 will wait indefinitely for a stream to become open. Otherwise the timeout must be of the form `SECS:USECS` where `SECS` is an integer gives the number of seconds to wait for a timeout and `USECS` adds the number of micro-seconds. This built-in is only defined if the system call `select` is available in the system. */ EOF sed -e "1024r tmp" /Users/vsc/git/yap-6.3/C/iopreds.c > x mv x /Users/vsc/git/yap-6.3/C/iopreds.c #false cat << "EOF" > tmp /** @pred char_conversion(+ _IN_,+ _OUT_) is iso While reading terms convert unquoted occurrences of the character _IN_ to the character _OUT_. Both _IN_ and _OUT_ must be bound to single characters atoms. Character conversion only works if the flag `char_conversion` is on. This is default in the `iso` and `sicstus` language modes. As an example, character conversion can be used for instance to convert characters from the ISO-LATIN-1 character set to ASCII. If _IN_ is the same character as _OUT_, char_conversion/2 will remove this conversion from the table. */ EOF sed -e "1001r tmp" /Users/vsc/git/yap-6.3/C/iopreds.c > x mv x /Users/vsc/git/yap-6.3/C/iopreds.c #false cat << "EOF" > tmp /** @pred close_shared_object(+ _Handle_) Detach the shared object identified by _Handle_. */ EOF sed -e "236r tmp" /Users/vsc/git/yap-6.3/C/load_foreign.c > x mv x /Users/vsc/git/yap-6.3/C/load_foreign.c #false cat << "EOF" > tmp /** @pred is_mutable(? _D_) Holds if _D_ is a mutable term. */ EOF sed -e "351r tmp" /Users/vsc/git/yap-6.3/C/mavar.c > x mv x /Users/vsc/git/yap-6.3/C/mavar.c #false cat << "EOF" > tmp /** @pred update_mutable(+ _D_,+ _M_) Set the current value of mutable term _M_ to term _D_. */ EOF sed -e "350r tmp" /Users/vsc/git/yap-6.3/C/mavar.c > x mv x /Users/vsc/git/yap-6.3/C/mavar.c #false cat << "EOF" > tmp /** @pred get_mutable(? _D_,+ _M_) Unify the current value of mutable term _M_ with term _D_. */ EOF sed -e "349r tmp" /Users/vsc/git/yap-6.3/C/mavar.c > x mv x /Users/vsc/git/yap-6.3/C/mavar.c #false cat << "EOF" > tmp /** @pred create_mutable(+ _D_,- _M_) Create new mutable variable _M_ with initial value _D_. */ EOF sed -e "348r tmp" /Users/vsc/git/yap-6.3/C/mavar.c > x mv x /Users/vsc/git/yap-6.3/C/mavar.c #false cat << "EOF" > tmp /** @pred setarg(+ _I_,+ _S_,? _T_) Set the value of the _I_th argument of term _S_ to term _T_. */ EOF sed -e "347r tmp" /Users/vsc/git/yap-6.3/C/mavar.c > x mv x /Users/vsc/git/yap-6.3/C/mavar.c #false cat << "EOF" > tmp /** @pred abort Abandons the execution of the current goal and returns to top level. All break levels (see break/0 below) are terminated. It is mainly used during debugging or after a serious execution error, to return to the top-level. */ EOF sed -e "1997r tmp" /Users/vsc/git/yap-6.3/C/stdpreds.c > x mv x /Users/vsc/git/yap-6.3/C/stdpreds.c #false cat << "EOF" > tmp /** @pred _T_ =.. _L_ is iso The list _L_ is built with the functor and arguments of the term _T_. If _T_ is instantiated to a variable, then _L_ must be instantiated either to a list whose head is an atom, or to a list consisting of just a number. */ EOF sed -e "1955r tmp" /Users/vsc/git/yap-6.3/C/stdpreds.c > x mv x /Users/vsc/git/yap-6.3/C/stdpreds.c #false cat << "EOF" > tmp /** @pred get_value(+ _A_,- _V_) In YAP, atoms can be associated with constants. If one such association exists for atom _A_, unify the second argument with the constant. Otherwise, unify _V_ with `[]`. This predicate is YAP specific. */ EOF sed -e "1939r tmp" /Users/vsc/git/yap-6.3/C/stdpreds.c > x mv x /Users/vsc/git/yap-6.3/C/stdpreds.c #false cat << "EOF" > tmp /** @pred set_value(+ _A_,+ _C_) Associate atom _A_ with constant _C_. The `set_value` and `get_value` built-ins give a fast alternative to the internal data-base. This is a simple form of implementing a global counter. ~~~~~ read_and_increment_counter(Value) :- get_value(counter, Value), Value1 is Value+1, set_value(counter, Value1). ~~~~~ This predicate is YAP specific. */ EOF sed -e "1916r tmp" /Users/vsc/git/yap-6.3/C/stdpreds.c > x mv x /Users/vsc/git/yap-6.3/C/stdpreds.c #false cat << "EOF" > tmp /** @pred rename(+ _F_,+ _G_) Renames file _F_ to _G_. */ EOF sed -e "3095r tmp" /Users/vsc/git/yap-6.3/C/sysbits.c > x mv x /Users/vsc/git/yap-6.3/C/sysbits.c #false cat << "EOF" > tmp /** @pred sh Creates a new shell interaction. */ EOF sed -e "3092r tmp" /Users/vsc/git/yap-6.3/C/sysbits.c > x mv x /Users/vsc/git/yap-6.3/C/sysbits.c #false cat << "EOF" > tmp /** @pred mutex_unlock(+ _MutexId_) Unlock the mutex. This can only be called if the mutex is held by the calling thread. If this is not the case, a `permission_error` exception is raised. */ EOF sed -e "1682r tmp" /Users/vsc/git/yap-6.3/C/threads.c > x mv x /Users/vsc/git/yap-6.3/C/threads.c #false cat << "EOF" > tmp /** @pred mutex_trylock(+ _MutexId_) As mutex_lock/1, but if the mutex is held by another thread, this predicates fails immediately. */ EOF sed -e "1681r tmp" /Users/vsc/git/yap-6.3/C/threads.c > x mv x /Users/vsc/git/yap-6.3/C/threads.c #false cat << "EOF" > tmp /** @pred mutex_lock(+ _MutexId_) Lock the mutex. Prolog mutexes are recursive mutexes: they can be locked multiple times by the same thread. Only after unlocking it as many times as it is locked, the mutex becomes available for locking by other threads. If another thread has locked the mutex the calling thread is suspended until to mutex is unlocked. If _MutexId_ is an atom, and there is no current mutex with that name, the mutex is created automatically using mutex_create/1. This implies named mutexes need not be declared explicitly. Please note that locking and unlocking mutexes should be paired carefully. Especially make sure to unlock mutexes even if the protected code fails or raises an exception. For most common cases use with_mutex/2, which provides a safer way for handling Prolog-level mutexes. */ EOF sed -e "1680r tmp" /Users/vsc/git/yap-6.3/C/threads.c > x mv x /Users/vsc/git/yap-6.3/C/threads.c #false cat << "EOF" > tmp /** @pred mutex_destroy(+ _MutexId_) Destroy a mutex. After this call, _MutexId_ becomes invalid and further references yield an `existence_error` exception. */ EOF sed -e "1679r tmp" /Users/vsc/git/yap-6.3/C/threads.c > x mv x /Users/vsc/git/yap-6.3/C/threads.c #false cat << "EOF" > tmp /** @pred mutex_create(? _MutexId_) Create a mutex. if _MutexId_ is an atom, a named mutex is created. If it is a variable, an anonymous mutex reference is returned. There is no limit to the number of mutexes that can be created. */ EOF sed -e "1678r tmp" /Users/vsc/git/yap-6.3/C/threads.c > x mv x /Users/vsc/git/yap-6.3/C/threads.c #false cat << "EOF" > tmp /** @pred thread_setconcurrency(+ _Old_, - _New_) Determine the concurrency of the process, which is defined as the maximum number of concurrently active threads. `Active` here means they are using CPU time. This option is provided if the thread-implementation provides `pthread_setconcurrency()`. Solaris is a typical example of this family. On other systems this predicate unifies _Old_ to 0 (zero) and succeeds silently. */ EOF sed -e "1663r tmp" /Users/vsc/git/yap-6.3/C/threads.c > x mv x /Users/vsc/git/yap-6.3/C/threads.c #false cat << "EOF" > tmp /** @pred thread_yield Voluntarily relinquish the processor. */ EOF sed -e "1651r tmp" /Users/vsc/git/yap-6.3/C/threads.c > x mv x /Users/vsc/git/yap-6.3/C/threads.c #false cat << "EOF" > tmp /** @pred stop_low_level_trace Stop display of messages at procedure entry and retry. Note that this compile-time option will slow down execution. */ EOF sed -e "462r tmp" /Users/vsc/git/yap-6.3/C/tracer.c > x mv x /Users/vsc/git/yap-6.3/C/tracer.c #false cat << "EOF" > tmp /** @pred start_low_level_trace Begin display of messages at procedure entry and retry. */ EOF sed -e "451r tmp" /Users/vsc/git/yap-6.3/C/tracer.c > x mv x /Users/vsc/git/yap-6.3/C/tracer.c #false cat << "EOF" > tmp /** @pred acyclic_term( _T_) is iso Succeeds if there are loops in the term _T_, that is, it is an infinite term. */ EOF sed -e "1024r tmp" /Users/vsc/git/yap-6.3/C/unify.c > x mv x /Users/vsc/git/yap-6.3/C/unify.c #false cat << "EOF" > tmp /** @pred unify_with_occurs_check(?T1,?T2) is iso Obtain the most general unifier of terms _T1_ and _T2_, if there is one. This predicate implements the full unification algorithm. An example:n ~~~~~{.prolog} unify_with_occurs_check(a(X,b,Z),a(X,A,f(B)). ~~~~~ will succeed with the bindings `A = b` and `Z = f(B)`. On the other hand: ~~~~~{.prolog} unify_with_occurs_check(a(X,b,Z),a(X,A,f(Z)). ~~~~~ would fail, because `Z` is not unifiable with `f(Z)`. Note that `(=)/2` would succeed for the previous examples, giving the following bindings `A = b` and `Z = f(Z)`. */ EOF sed -e "1000r tmp" /Users/vsc/git/yap-6.3/C/unify.c > x mv x /Users/vsc/git/yap-6.3/C/unify.c #false cat << "EOF" > tmp /** @pred unnumbervars( _T_,+ _NT_) Replace every `$VAR( _I_)` by a free variable. */ EOF sed -e "5388r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred numbervars( _T_,+ _N1_,- _Nn_) Instantiates each variable in term _T_ to a term of the form: `$VAR( _I_)`, with _I_ increasing from _N1_ to _Nn_. */ EOF sed -e "5379r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred term_factorized(? _TI_,- _TF_, ?SubTerms) Similar to rational_term_to_tree/4, but _SubTerms_ is a proper list. */ EOF sed -e "5370r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred rational_term_to_tree(? _TI_,- _TF_, ?SubTerms, ?MoreSubterms) The term _TF_ is a forest representation (without cycles and repeated terms) for the Prolog term _TI_. The term _TF_ is the main term. The difference list _SubTerms_-_MoreSubterms_ stores terms of the form _V=T_, where _V_ is a new variable occuring in _TF_, and _T_ is a copy of a sub-term from _TI_. */ EOF sed -e "5358r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred term_attvars(+ _Term_,- _AttVars_) _AttVars_ is a list of all attributed variables in _Term_ and its attributes. I.e., term_attvars/2 works recursively through attributes. This predicate is Cycle-safe. */ EOF sed -e "5346r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred term_variables(? _Term_, - _Variables_) is iso Unify _Variables_ with the list of all variables of term _Term_. The variables occur in the order of their first appearance when traversing the term depth-first, left-to-right. */ EOF sed -e "5334r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred ground( _T_) is iso Succeeds if there are no free variables in the term _T_. */ EOF sed -e "5323r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred copy_term_nat(? _TI_,- _TF_) As copy_term/2. Attributes however, are not copied but replaced by fresh variables. */ EOF sed -e "5312r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred duplicate_term(? _TI_,- _TF_) Term _TF_ is a variant of the original term _TI_, such that for each variable _V_ in the term _TI_ there is a new variable _V'_ in term _TF_, and the two terms do not share any structure. All suspended goals and attributes for attributed variables in _TI_ are also duplicated. Also refer to copy_term/2. */ EOF sed -e "5298r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred copy_term(? _TI_,- _TF_) is iso Term _TF_ is a variant of the original term _TI_, such that for each variable _V_ in the term _TI_ there is a new variable _V'_ in term _TF_. Notice that: + suspended goals and attributes for attributed variables in _TI_ are also duplicated; + ground terms are shared between the new and the old term. If you do not want any sharing to occur please use duplicate_term/2. */ EOF sed -e "5282r tmp" /Users/vsc/git/yap-6.3/C/utilpreds.c > x mv x /Users/vsc/git/yap-6.3/C/utilpreds.c #false cat << "EOF" > tmp /** @pred abolish_all_tables/0 Removes all the entries from the table space for all tabled predicates. The predicates remain as tabled predicates. */ EOF sed -e "210r tmp" /Users/vsc/git/yap-6.3/OPTYap/opt.preds.c > x mv x /Users/vsc/git/yap-6.3/OPTYap/opt.preds.c #false cat << "EOF" > tmp /** @pred put_assoc(+ _Key_,+ _Assoc_,+ _Val_,+ _New_) The association list _New_ includes and element of association _key_ with _Val_, and all elements of _Assoc_ that did not have key _Key_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred ord_list_to_assoc(+ _List_,? _Assoc_) Given an ordered list _List_ such that each element of _List_ is of the form _Key-Val_, and all the _Keys_ are unique, _Assoc_ is the corresponding association list. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred min_assoc(+ _Assoc_,- _Key_,? _Value_) Given the association list _Assoc_, _Key_ in the smallest key in the list, and _Value_ the associated value. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred max_assoc(+ _Assoc_,- _Key_,? _Value_) Given the association list _Assoc_, _Key_ in the largest key in the list, and _Value_ the associated value. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred map_assoc(+ _Pred_,+ _Assoc_,? _New_) Given the binary predicate name _Pred_ and the association list _Assoc_, _New_ in an association list with keys in _Assoc_, and such that if _Key-Val_ is in _Assoc_, and _Key-Ans_ is in _New_, then _Pred_( _Val_, _Ans_) holds. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred map_assoc(+ _Pred_,+ _Assoc_) Succeeds if the unary predicate name _Pred_( _Val_) holds for every element in the association list. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred list_to_assoc(+ _List_,? _Assoc_) Given a list _List_ such that each element of _List_ is of the form _Key-Val_, and all the _Keys_ are unique, _Assoc_ is the corresponding association list. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred is_assoc(+ _Assoc_) Succeeds if _Assoc_ is an association list, that is, if it is a red-black tree. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred get_prev_assoc(+ _Key_,+ _Assoc_,? _Next_,? _Value_) If _Key_ is one of the elements in the association list _Assoc_, return the previous key, _Next_, and its value, _Value_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred get_next_assoc(+ _Key_,+ _Assoc_,? _Next_,? _Value_) If _Key_ is one of the elements in the association list _Assoc_, return the next key, _Next_, and its value, _Value_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred get_assoc(+ _Key_,+ _Assoc_,? _Value_,+ _NAssoc_,? _NValue_) If _Key_ is one of the elements in the association list _Assoc_, return the associated value _Value_ and a new association list _NAssoc_ where _Key_ is associated with _NValue_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred get_assoc(+ _Key_,+ _Assoc_,? _Value_) If _Key_ is one of the elements in the association list _Assoc_, return the associated value. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred gen_assoc(+ _Assoc_,? _Key_,? _Value_) Given the association list _Assoc_, unify _Key_ and _Value_ with two associated elements. It can be used to enumerate all elements in the association list. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred empty_assoc(+ _Assoc_) Succeeds if association list _Assoc_ is empty. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred del_min_assoc(+ _Assoc_, ? _Key_, ? _Val_, ? _NewAssoc_) Succeeds if _NewAssoc_ is an association list, obtained by removing the smallest element of the list, with _Key_ and _Val_ from the list _Assoc_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred del_max_assoc(+ _Assoc_, ? _Key_, ? _Val_, ? _NewAssoc_) Succeeds if _NewAssoc_ is an association list, obtained by removing the largest element of the list, with _Key_ and _Val_ from the list _Assoc_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred del_assoc(+ _Key_, + _Assoc_, ? _Val_, ? _NewAssoc_) Succeeds if _NewAssoc_ is an association list, obtained by removing the element with _Key_ and _Val_ from the list _Assoc_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred assoc_to_list(+ _Assoc_,? _List_) Given an association list _Assoc_ unify _List_ with a list of the form _Key-Val_, where the elements _Key_ are in ascending order. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/assoc.yap > x mv x /Users/vsc/git/yap-6.3/library/assoc.yap #false cat << "EOF" > tmp /** @pred avl_new(+ _T_) Create a new tree. */ EOF sed -e "62r tmp" /Users/vsc/git/yap-6.3/library/avl.yap > x mv x /Users/vsc/git/yap-6.3/library/avl.yap #false cat << "EOF" > tmp /** @pred avl_lookup(+ _Key_,- _Value_,+ _T_) Lookup an element with key _Key_ in the AVL tree _T_, returning the value _Value_. */ EOF sed -e "62r tmp" /Users/vsc/git/yap-6.3/library/avl.yap > x mv x /Users/vsc/git/yap-6.3/library/avl.yap #false cat << "EOF" > tmp /** @pred avl_insert(+ _Key_,? _Value_,+ _T0_,- _TF_) Add an element with key _Key_ and _Value_ to the AVL tree _T0_ creating a new AVL tree _TF_. Duplicated elements are allowed. */ EOF sed -e "62r tmp" /Users/vsc/git/yap-6.3/library/avl.yap > x mv x /Users/vsc/git/yap-6.3/library/avl.yap #true cat << "EOF" > tmp /** @pred process(+ _StreamInp_, + _Goal_) For every line _LineIn_ in stream _StreamInp_, call `call(Goal,LineIn)`. */ EOF sed -e "395r tmp" /Users/vsc/git/yap-6.3/library/block_diagram.yap > x mv x /Users/vsc/git/yap-6.3/library/block_diagram.yap #false cat << "EOF" > tmp /** @pred make_diagram(+inputfilename, +ouputfilename, +predicate, +depth, +extension) The same as make_diagram/2 but you can define how many of the imported/exporeted predicates will be shown with predicate, and how deep the crawler is allowed to go with depth. The extension is used if the file use module directives do not include a file extension. */ EOF sed -e "214r tmp" /Users/vsc/git/yap-6.3/library/block_diagram.yap > x mv x /Users/vsc/git/yap-6.3/library/block_diagram.yap #false cat << "EOF" > tmp /** @pred make_diagram(+inputfilename, +ouputfilename) This will crawl the files following the use_module, ensure_loaded directives withing the inputfilename. The result will be a file in dot format. You can make a pdf at the shell by asking `dot -Tpdf filename > output.pdf`. */ EOF sed -e "214r tmp" /Users/vsc/git/yap-6.3/library/block_diagram.yap > x mv x /Users/vsc/git/yap-6.3/library/block_diagram.yap #true cat << "EOF" > tmp /** @pred write_to_chars(+ _Term_, - _Result_) Execute the built-in procedure write/1 with argument _Term_ outputting the result to the string of character codes _Result_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred write_to_chars(+ _Term_, - _Result0_, - _Result_) Execute the built-in procedure write/1 with argument _Term_ outputting the result to the difference list of character codes _Result-Result0_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred with_output_to_chars(? _Goal_, ? _Chars0_, - _Chars_) Execute goal _Goal_ such that its standard output will be sent to a memory buffer. After successful execution the contents of the memory buffer will be converted to the difference list of character codes _Chars-Chars0_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred with_output_to_chars(? _Goal_, - _Stream_, ? _Chars0_, - _Chars_) Execute goal _Goal_ such that its standard output will be sent to a memory buffer. After successful execution the contents of the memory buffer will be converted to the difference list of character codes _Chars-Chars0_ and _Stream_ receives the stream corresponding to the memory buffer. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred with_output_to_chars(? _Goal_, - _Chars_) Execute goal _Goal_ such that its standard output will be sent to a memory buffer. After successful execution the contents of the memory buffer will be converted to the list of character codes _Chars_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #true cat << "EOF" > tmp /** @pred term_to_atom(? _Term_,? _Atom_) Succeeds if _Atom_ describes a term that unifies with _Term_. When _Atom_ is instantiated _Atom_ is converted and then unified with _Term_. If _Atom_ has no valid syntax, a `syntax_error` exception is raised. Otherwise _Term_ is `written` on _Atom_ using write/1. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #true cat << "EOF" > tmp /** @pred term_to_atom(? _Term_, ? _Atom_) True if _Atom_ describes a term that unifies with _Term_. When _Atom_ is instantiated _Atom_ is converted and then unified with _Term_. If _Atom_ has no valid syntax, a syntax_error exception is raised. Otherwise _Term_ is `written` on _Atom_ using write_term/2 with the option quoted(true). */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #true cat << "EOF" > tmp /** @pred read_from_chars(+ _Chars_, - _Term_) Parse the list of character codes _Chars_ and return the result in the term _Term_. The character codes to be read must terminate with a dot character such that either (i) the dot character is followed by blank characters; or (ii) the dot character is the last character in the string. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred open_chars_stream(+ _Chars_, - _Stream_) Open the list of character codes _Chars_ as a stream _Stream_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred number_to_chars(+ _Number_, - _Result_) Convert the number _Number_ to the string of character codes _Result_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred number_to_chars(+ _Number_, - _Result0_, - _Result_) Convert the atom _Number_ to the difference list of character codes _Result-Result0_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred format_to_chars(+ _Form_, + _Args_, - _Result_, - _Result0_) Execute the built-in procedure format/2 with form _Form_ and arguments _Args_ outputting the result to the difference list of character codes _Result-Result0_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred format_to_chars(+ _Form_, + _Args_, - _Result_) Execute the built-in procedure format/2 with form _Form_ and arguments _Args_ outputting the result to the string of character codes _Result_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred atom_to_chars(+ _Atom_, - _Result_) Convert the atom _Atom_ to the string of character codes _Result_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred atom_to_chars(+ _Atom_, - _Result0_, - _Result_) Convert the atom _Atom_ to the difference list of character codes _Result-Result0_. */ EOF sed -e "17r tmp" /Users/vsc/git/yap-6.3/library/charsio.yap > x mv x /Users/vsc/git/yap-6.3/library/charsio.yap #false cat << "EOF" > tmp /** @pred on_cleanup(+ _CleanUpGoal_) Any Predicate might registers a _CleanUpGoal_. The _CleanUpGoal_ is put onto the current cleanup context. All such CleanUpGoals are executed in reverse order of their registration when the surrounding cleanup-context ends. This call will throw an exception if a predicate tries to register a _CleanUpGoal_ outside of any cleanup-context. */ EOF sed -e "2r tmp" /Users/vsc/git/yap-6.3/library/cleanup.yap > x mv x /Users/vsc/git/yap-6.3/library/cleanup.yap #false cat << "EOF" > tmp /** @pred cleanup_all Calls all pending CleanUpGoals and resets the cleanup-system to an initial state. Should only be used as one of the last calls in the main program. There are some private predicates which could be used in special cases, such as manually setting up cleanup-contexts and registering CleanUpGoals for other than the current cleanup-context. Read the Source Luke. */ EOF sed -e "2r tmp" /Users/vsc/git/yap-6.3/library/cleanup.yap > x mv x /Users/vsc/git/yap-6.3/library/cleanup.yap #false cat << "EOF" > tmp /** @pred call_cleanup(: _Goal_) Execute goal _Goal_ within a cleanup-context. Called predicates might register cleanup Goals which are called right after the end of the call to _Goal_. Cuts and exceptions inside Goal do not prevent the execution of the cleanup calls. call_cleanup might be nested. */ EOF sed -e "2r tmp" /Users/vsc/git/yap-6.3/library/cleanup.yap > x mv x /Users/vsc/git/yap-6.3/library/cleanup.yap #false cat << "EOF" > tmp /** @pred attr_portray_hook(+ _AttValue_,+ _Var_) Called by write_term/2 and friends for each attribute if the option `attributes(portray)` is in effect. If the hook succeeds the attribute is considered printed. Otherwise `Module = ...` is printed to indicate the existence of a variable. */ EOF sed -e "304r tmp" /Users/vsc/git/yap-6.3/library/clp/clp_distinct.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clp_distinct.pl #true cat << "EOF" > tmp /** @pred all_distinct( _Cs_, _Vs_) verifies whether all elements of a list are different. Also tests if all the sums between a list of constants and a list of variables are different. This is a formulation of the queens problem that uses both versions of `all_different`: ~~~~~{.prolog} queens(N, Queens) :- length(Queens, N), Queens ins 1..N, all_distinct(Queens), foldl(inc, Queens, Inc, 0, _), % [0, 1, 2, .... ] foldl(dec, Queens, Dec, 0, _), % [0, -1, -2, ... ] all_distinct(Inc,Queens), all_distinct(Dec,Queens), labeling([], Queens). inc(_, I0, I0, I) :- I is I0+1. dec(_, I0, I0, I) :- I is I0-1. ~~~~~ The next example uses `all_different/1` and the functionality of the matrix package to verify that all squares in sudoku have a different value: ~~~~~{.prolog} foreach( [I,J] ins 0..2 , all_different(M[I*3+(0..2),J*3+(0..2)]) ), ~~~~~ */ EOF sed -e "157r tmp" /Users/vsc/git/yap-6.3/library/clp/clp_distinct.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clp_distinct.pl #true cat << "EOF" > tmp /** @pred transpose(+ _Graph_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained from _Graph_ by replacing all edges of the form _V1-V2_ by edges of the form _V2-V1_. The cost is `O(|V|^2)`. In the next example: ~~~~~{.prolog} ?- transpose([1-[3,5],2-[4],3-[], 4-[5],5-[],6-[],7-[],8-[]], NL). NL = [1-[],2-[],3-[1],4-[2],5-[1,4],6-[],7-[],8-[]] ~~~~~ Notice that an undirected graph is its own transpose. */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred scalar_product(+ _Cs_, + _Vs_, + _Rel_, ? _V_ ) The product of constant _Cs_ by _Vs_ must be in relation _Rel_ with _V_ . */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred labeling( _Opts_, _Xs_) performs labeling, several variable and value selection options are available. The defaults are `min` and `min_step`. Variable selection options are as follows: + leftmost choose the first variable + min choose one of the variables with smallest minimum value + max choose one of the variables with greatest maximum value + ff choose one of the most constrained variables, that is, with the smallest domain. Given that we selected a variable, the values chosen for branching may be: + min_step smallest value + max_step largest value + bisect median + enum all value starting from the minimum. */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred all_different( _Vs_ ) Verifies whether all elements of a list are different. */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #\= _Y_ is semidet disequality */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #>= _Y_ is semidet larger or equal */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #> _Y_ is semidet larger */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #==> _B_ is det Reified implication */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #=< _Y_ is semidet smaller */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #= _Y_ is semidet equality */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #<==> _B_ is det reified equivalence */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #< _Y_ is semidet smaller or equal Arguments to this constraint may be an arithmetic expression with +, -, \\*, integer division /, min, max, sum, count, and abs. Boolean variables support conjunction (/\), disjunction (\/), implication (=>), equivalence (<=>), and xor. The sum constraint allows a two argument version using the `where` conditional, in Zinc style. The send more money equation may be written as: ~~~~~{.prolog} 1000*S + 100*E + 10*N + D + 1000*M + 100*O + 10*R + E #= 10000*M + 1000*O + 100*N + 10*E + Y, ~~~~~ This example uses `where` to select from column _I_ the elements that have value under _M_: ~~~~~{.prolog} OutFlow[I] #= sum(J in 1..N where D[J,I]count constraint counts the number of elements that match a certain constant or variable (integer sets are not available). */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #true cat << "EOF" > tmp /** @pred _X_ #< _B_ is det reified implication As an example. consider finding out the people who wanted to sit next to a friend and that are are actually sitting together: ~~~~~{.prolog} preference_satisfied(X-Y, B) :- abs(X - Y) #= 1 #<==> B. ~~~~~ Note that not all constraints may be reifiable. */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/library/clp/clpfd.pl > x mv x /Users/vsc/git/yap-6.3/library/clp/clpfd.pl #false cat << "EOF" > tmp /** @pred db_usage Give general overview of data-base usage in the system. */ EOF sed -e "11r tmp" /Users/vsc/git/yap-6.3/library/dbusage.yap > x mv x /Users/vsc/git/yap-6.3/library/dbusage.yap #false cat << "EOF" > tmp /** @pred db_static(+ _Threshold_) List memory usage for every static predicate. Predicate must use more than _Threshold_ bytes. */ EOF sed -e "11r tmp" /Users/vsc/git/yap-6.3/library/dbusage.yap > x mv x /Users/vsc/git/yap-6.3/library/dbusage.yap #false cat << "EOF" > tmp /** @pred db_static List memory usage for every static predicate. */ EOF sed -e "11r tmp" /Users/vsc/git/yap-6.3/library/dbusage.yap > x mv x /Users/vsc/git/yap-6.3/library/dbusage.yap #false cat << "EOF" > tmp /** @pred db_dynamic(+ _Threshold_) List memory usage for every dynamic predicate. Predicate must use more than _Threshold_ bytes. */ EOF sed -e "11r tmp" /Users/vsc/git/yap-6.3/library/dbusage.yap > x mv x /Users/vsc/git/yap-6.3/library/dbusage.yap #false cat << "EOF" > tmp /** @pred db_dynamic List memory usage for every dynamic predicate. */ EOF sed -e "11r tmp" /Users/vsc/git/yap-6.3/library/dbusage.yap > x mv x /Users/vsc/git/yap-6.3/library/dbusage.yap #false cat << "EOF" > tmp /** @pred ugraph_to_dgraph( + _UGraph_, - _Graph_) Unify _Graph_ with the directed graph obtain from _UGraph_, represented in the form used in the _ugraphs_ unweighted graphs library. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_vertices(+ _Graph_, - _Vertices_) Unify _Vertices_ with all vertices appearing in graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_transpose(+ _Graph_, - _Transpose_) Unify _NewGraph_ with a new graph obtained from _Graph_ by replacing all edges of the form _V1-V2_ by edges of the form _V2-V1_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_transitive_closure(+ _Graph_, - _Closure_) Unify _Closure_ with the transitive closure of graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_top_sort(+ _Graph_, - _Vertices_, ? _Vertices0_) Unify the difference list _Vertices_- _Vertices0_ with the topological sort of graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_top_sort(+ _Graph_, - _Vertices_) Unify _Vertices_ with the topological sort of graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_to_ugraph(+ _Graph_, - _UGraph_) Unify _UGraph_ with the representation used by the _ugraphs_ unweighted graphs library, that is, a list of the form _V-Neighbors_, where _V_ is a node and _Neighbors_ the nodes children. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_symmetric_closure(+ _Graph_, - _Closure_) Unify _Closure_ with the symmetric closure of graph _Graph_, that is, if _Closure_ contains an edge _U-V_ it must also contain the edge _V-U_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_reachable(+ _Vertex_, + _Graph_, ? _Edges_) The path _Path_ is a path starting at vertex _Vertex_ in graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_path(+ _Vertex_, + _Vertex1_, + _Graph_, ? _Path_) The path _Path_ is a path starting at vertex _Vertex_ in graph _Graph_ and ending at path _Vertex2_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_path(+ _Vertex_, + _Graph_, ? _Path_) The path _Path_ is a path starting at vertex _Vertex_ in graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_neighbours(+ _Vertex_, + _Graph_, - _Vertices_) Unify _Vertices_ with the list of neighbours of vertex _Vertex_ in _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_neighbors(+ _Vertex_, + _Graph_, - _Vertices_) Unify _Vertices_ with the list of neighbors of vertex _Vertex_ in _Graph_. If the vertice is not in the graph fail. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_min_paths(+ _V1_, + _Graph_, - _Paths_) Unify the list _Paths_ with the minimal cost paths from node _N1_ to the nodes in graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_min_path(+ _V1_, + _V1_, + _Graph_, - _Path_, ? _Costt_) Unify the list _Path_ with the minimal cost path between nodes _N1_ and _N2_ in graph _Graph_. Path _Path_ has cost _Cost_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_max_path(+ _V1_, + _V1_, + _Graph_, - _Path_, ? _Costt_) Unify the list _Path_ with the maximal cost path between nodes _N1_ and _N2_ in graph _Graph_. Path _Path_ has cost _Cost_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_leaves(+ _Graph_, ? _Vertices_) The vertices _Vertices_ have no outgoing edge in graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_isomorphic(+ _Vs_, + _NewVs_, + _G0_, - _GF_) Unify the list _GF_ with the graph isomorphic to _G0_ where vertices in _Vs_ map to vertices in _NewVs_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_edges(+ _Graph_, - _Edges_) Unify _Edges_ with all edges appearing in graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_edge(+ _N1_, + _N2_, + _Graph_) Edge _N1_- _N2_ is an edge in directed graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_del_vertices(+ _Graph_, + _Vertices_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by deleting the list of vertices _Vertices_ and all the edges that start from or go to a vertex in _Vertices_ to the graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_del_vertex(+ _Graph_, + _Vertex_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by deleting vertex _Vertex_ and all the edges that start from or go to _Vertex_ to the graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_del_edges(+ _Graph_, + _Edges_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by removing the list of edges _Edges_ from the graph _Graph_. Notice that no vertices are deleted. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_del_edge(+ _Graph_, + _N1_, + _N2_, - _NewGraph_) Succeeds if _NewGraph_ unifies with a new graph obtained by removing the edge _N1_- _N2_ from the graph _Graph_. Notice that no vertices are deleted. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_compose(+ _Graph1_, + _Graph2_, - _ComposedGraph_) Unify _ComposedGraph_ with a new graph obtained by composing _Graph1_ and _Graph2_, ie, _ComposedGraph_ has an edge _V1-V2_ iff there is a _V_ such that _V1-V_ in _Graph1_ and _V-V2_ in _Graph2_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_complement(+ _Graph_, - _NewGraph_) Unify _NewGraph_ with the graph complementary to _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_add_vertices(+ _Graph_, + _Vertices_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by adding the list of vertices _Vertices_ to the graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_add_vertices(+ _Graph_, + _Vertex_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by adding vertex _Vertex_ to the graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_add_edges(+ _Graph_, + _Edges_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by adding the list of edges _Edges_ to the graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #false cat << "EOF" > tmp /** @pred dgraph_add_edge(+ _Graph_, + _N1_, + _N2_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by adding the edge _N1_- _N2_ to the graph _Graph_. */ EOF sed -e "277r tmp" /Users/vsc/git/yap-6.3/library/dgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/dgraphs.yap #true cat << "EOF" > tmp /** @pred foreach(:Generator, : _Goal_) True if the conjunction of instances of _Goal_ using the bindings from Generator is true. Unlike forall/2, which runs a failure-driven loop that proves _Goal_ for each solution of Generator, foreach creates a conjunction. Each member of the conjunction is a copy of _Goal_, where the variables it shares with Generator are filled with the values from the corresponding solution. The implementation executes forall/2 if _Goal_ does not contain any variables that are not shared with Generator. Here is an example: ~~~~~{.prolog} ?- foreach( between(1,4,X), dif(X,Y)), Y = 5. Y = 5 ?- foreach( between(1,4,X), dif(X,Y)), Y = 3. No ~~~~~ Notice that _Goal_ is copied repeatedly, which may cause problems if attributed variables are involved. */ EOF sed -e "222r tmp" /Users/vsc/git/yap-6.3/library/dialect/bprolog/foreach.pl > x mv x /Users/vsc/git/yap-6.3/library/dialect/bprolog/foreach.pl #true cat << "EOF" > tmp /** @pred foreach( _Sequence_, _Goal_) Deterministic iterator. The ranges are given by _Sequence_ that is either ` _I_ in _M_.. _N_`, or of the form `[ _I_, _J_] ins _M_.. _N_`, or a list of the above conditions. Variables in the goal are assumed to be global, ie, share a single value in the execution. The exceptions are the iteration indices. Moreover, if the goal is of the form ` _Locals_^ _G_` all variables occurring in _Locals_ are marked as local. As an example: ~~~~~{.prolog} foreach([I,J] ins 1..N, A^(A <==M[I,J], N[I] <== N[I] + A*A) ) ~~~~~ the variables _I_, _J_ and _A_ are duplicated for every call (local), whereas the matrices _M_ and _N_ are shared throughout the execution (global). */ EOF sed -e "222r tmp" /Users/vsc/git/yap-6.3/library/dialect/bprolog/foreach.pl > x mv x /Users/vsc/git/yap-6.3/library/dialect/bprolog/foreach.pl #true cat << "EOF" > tmp /** @pred foreach( _Sequence_, _Goal_, _Acc0_, _AccF_) Deterministic iterator with accumulator style arguments. */ EOF sed -e "145r tmp" /Users/vsc/git/yap-6.3/library/dialect/bprolog/foreach.pl > x mv x /Users/vsc/git/yap-6.3/library/dialect/bprolog/foreach.pl #false cat << "EOF" > tmp /** @pred arg(+ _N_,+ _T_, _A_) is iso Succeeds if the argument _N_ of the term _T_ unifies with _A_. The arguments are numbered from 1 to the arity of the term. The current version will generate an error if _T_ or _N_ are unbound, if _T_ is not a compound term, of if _N_ is not a positive integer. Note that previous versions of YAP would fail silently under these errors. */ EOF sed -e "163r tmp" /Users/vsc/git/yap-6.3/library/dialect/swi.yap > x mv x /Users/vsc/git/yap-6.3/library/dialect/swi.yap #false cat << "EOF" > tmp /** @pred atom_concat(? _A1_,? _A2_,? _A12_) is iso The predicate holds when the third argument unifies with an atom, and the first and second unify with atoms such that their representations concatenated are the representation for _A12_. If _A1_ and _A2_ are unbound, the built-in will find all the atoms that concatenated give _A12_. */ EOF sed -e "148r tmp" /Users/vsc/git/yap-6.3/library/dialect/swi.yap > x mv x /Users/vsc/git/yap-6.3/library/dialect/swi.yap #false cat << "EOF" > tmp /** @pred concat_atom(? _List_,+ _Separator_,? _Atom_) Creates an atom just like concat_atom/2, but inserts _Separator_ between each pair of atoms. For example: ~~~~~ ?- concat_atom([gnu, gnat], ', ', A). A = 'gnu, gnat' ~~~~~ (Unimplemented) This predicate can also be used to split atoms by instantiating _Separator_ and _Atom_: ~~~~~ ?- concat_atom(L, -, 'gnu-gnat'). L = [gnu, gnat] ~~~~~ */ EOF sed -e "42r tmp" /Users/vsc/git/yap-6.3/library/dialect/swi.yap > x mv x /Users/vsc/git/yap-6.3/library/dialect/swi.yap #false cat << "EOF" > tmp /** @pred concat_atom(+ _List_,- _Atom_) _List_ is a list of atoms, integers or floating point numbers. Succeeds if _Atom_ can be unified with the concatenated elements of _List_. If _List_ has exactly 2 elements it is equivalent to `atom_concat/3`, allowing for variables in the list. */ EOF sed -e "42r tmp" /Users/vsc/git/yap-6.3/library/dialect/swi.yap > x mv x /Users/vsc/git/yap-6.3/library/dialect/swi.yap #false cat << "EOF" > tmp /** @pred chdir(+ _Dir_) Compatibility predicate. New code should use working_directory/2. */ EOF sed -e "42r tmp" /Users/vsc/git/yap-6.3/library/dialect/swi.yap > x mv x /Users/vsc/git/yap-6.3/library/dialect/swi.yap #true cat << "EOF" > tmp /** @pred time_file(+ _File_,- _Time_) Unify the last modification time of _File_ with _Time_. _Time_ is a floating point number expressing the seconds elapsed since Jan 1, 1970. */ EOF sed -e "42r tmp" /Users/vsc/git/yap-6.3/library/dialect/swi.yap > x mv x /Users/vsc/git/yap-6.3/library/dialect/swi.yap #true cat << "EOF" > tmp /** @pred min(+ _Expression_) Minimizes _Expression_ within the current constraint store. This is the same as computing the infimum and equation the expression to that infimum. */ EOF sed -e "75r tmp" /Users/vsc/git/yap-6.3/library/exo_interval.yap > x mv x /Users/vsc/git/yap-6.3/library/exo_interval.yap #true cat << "EOF" > tmp /** @pred min( _X_, _Vs_) First Argument is the least element of a list. */ EOF sed -e "75r tmp" /Users/vsc/git/yap-6.3/library/exo_interval.yap > x mv x /Users/vsc/git/yap-6.3/library/exo_interval.yap #true cat << "EOF" > tmp /** @pred max(+ _Expression_) Maximizes _Expression_ within the current constraint store. This is the same as computing the supremum and equating the expression to that supremum. */ EOF sed -e "75r tmp" /Users/vsc/git/yap-6.3/library/exo_interval.yap > x mv x /Users/vsc/git/yap-6.3/library/exo_interval.yap #true cat << "EOF" > tmp /** @pred max( _X_, _Vs_) First Argument is the greatest element of a list. + lex_order( _Vs_) All elements must be ordered. The following predicates control search: */ EOF sed -e "75r tmp" /Users/vsc/git/yap-6.3/library/exo_interval.yap > x mv x /Users/vsc/git/yap-6.3/library/exo_interval.yap #false cat << "EOF" > tmp /** @pred min_of_heap(+ _Heap_, - _Key_, - _Datum_) Returns the Key-Datum pair at the top of the heap (which is of course the pair with the smallest Key), but does not remove it from the heap. */ EOF sed -e "131r tmp" /Users/vsc/git/yap-6.3/library/heaps.yap > x mv x /Users/vsc/git/yap-6.3/library/heaps.yap #false cat << "EOF" > tmp /** @pred min_of_heap(+ _Heap_, - _Key1_, - _Datum1_, - _Key2_, - _Datum2_) Returns the smallest (Key1) and second smallest (Key2) pairs in the heap, without deleting them. */ EOF sed -e "131r tmp" /Users/vsc/git/yap-6.3/library/heaps.yap > x mv x /Users/vsc/git/yap-6.3/library/heaps.yap #false cat << "EOF" > tmp /** @pred list_to_heap(+ _List_, - _Heap_) Takes a list of _Key-Datum_ pairs (such as keysort could be used to sort) and forms them into a heap. */ EOF sed -e "131r tmp" /Users/vsc/git/yap-6.3/library/heaps.yap > x mv x /Users/vsc/git/yap-6.3/library/heaps.yap #false cat << "EOF" > tmp /** @pred heap_to_list(+ _Heap_, - _List_) Returns the current set of _Key-Datum_ pairs in the _Heap_ as a _List_, sorted into ascending order of _Keys_. */ EOF sed -e "131r tmp" /Users/vsc/git/yap-6.3/library/heaps.yap > x mv x /Users/vsc/git/yap-6.3/library/heaps.yap #false cat << "EOF" > tmp /** @pred heap_size(+ _Heap_, - _Size_) Reports the number of elements currently in the heap. */ EOF sed -e "131r tmp" /Users/vsc/git/yap-6.3/library/heaps.yap > x mv x /Users/vsc/git/yap-6.3/library/heaps.yap #false cat << "EOF" > tmp /** @pred get_from_heap(+ _Heap_,- _key_,- _Datum_,- _Heap_) Returns the _Key-Datum_ pair in _OldHeap_ with the smallest _Key_, and also a _Heap_ which is the _OldHeap_ with that pair deleted. */ EOF sed -e "131r tmp" /Users/vsc/git/yap-6.3/library/heaps.yap > x mv x /Users/vsc/git/yap-6.3/library/heaps.yap #false cat << "EOF" > tmp /** @pred empty_heap(? _Heap_) Succeeds if _Heap_ is an empty heap. */ EOF sed -e "131r tmp" /Users/vsc/git/yap-6.3/library/heaps.yap > x mv x /Users/vsc/git/yap-6.3/library/heaps.yap #false cat << "EOF" > tmp /** @pred mpi_wait_recv(? _Handle_,- _Status_,- _Data_) Completes a non-blocking receive operation. The predicate blocks until a message associated with handle _Hanlde_ is buffered. The predicate succeeds unifying _Status_ with the status of the message and _Data_ with the message itself. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_wait(? _Handle_,- _Status_) Completes a non-blocking operation. If the operation was a `mpi_send`, the predicate blocks until the message is buffered or sent by the runtime system. At this point the send buffer is released. If the operation was a `mpi_recv`, it waits until the message is copied to the receive buffer. _Status_ is unified with the status of the message. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_version(- _Major_,- _Minor_) Unifies _Major_ and _Minor_ with, respectively, the major and minor version of the MPI. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_test_recv(? _Handle_,- _Status_,- _Data_) Provides information regarding a handle. If the message associated with handle _Hanlde_ is buffered then the predicate succeeds unifying _Status_ with the status of the message and _Data_ with the message itself. Otherwise, the predicate fails. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_test(? _Handle_,- _Status_) Provides information regarding the handle _Handle_, ie., if a communication operation has been completed. If the operation associate with _Hanlde_ has been completed the predicate succeeds with the completion status in _Status_, otherwise it fails. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #true cat << "EOF" > tmp /** @pred mpi_send(+ _Data_,+ _Dest_,+ _Tag_) Blocking communication predicate. The message in _Data_, with tag _Tag_, is sent immediately to the processor with rank _Dest_. The predicate succeeds after the message being sent. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_recv(? _Source_,? _Tag_,- _Data_) Blocking communication predicate. The predicate blocks until a message is received from processor with rank _Source_ and tag _Tag_. The message is placed in _Data_. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_msg_size( _Msg_, - _MsgSize_) Unify _MsgSize_ with the number of bytes YAP would need to send the message _Msg_. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_isend(+ _Data_,+ _Dest_,+ _Tag_,- _Handle_) Non blocking communication predicate. The message in _Data_, with tag _Tag_, is sent whenever possible to the processor with rank _Dest_. An _Handle_ to the message is returned to be used to check for the status of the message, using the `mpi_wait` or `mpi_test` predicates. Until `mpi_wait` is called, the memory allocated for the buffer containing the message is not released. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_irecv(? _Source_,? _Tag_,- _Handle_) Non-blocking communication predicate. The predicate returns an _Handle_ for a message that will be received from processor with rank _Source_ and tag _Tag_. Note that the predicate succeeds immediately, even if no message has been received. The predicate `mpi_wait_recv` should be used to obtain the data associated to the handle. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_init Sets up the mpi environment. This predicate should be called before any other MPI predicate. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_gc Attempts to perform garbage collection with all the open handles associated with send and non-blocking broadcasts. For each handle it tests it and the message has been delivered the handle and the buffer are released. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_finalize Terminates the MPI execution environment. Every process must call this predicate before exiting. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_comm_size(- _Size_) Unifies _Size_ with the number of processes in the MPI environment. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_comm_rank(- _Rank_) Unifies _Rank_ with the rank of the current process in the MPI environment. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_bcast2(+ _Root_, ? _Data_) Broadcasts the message _Data_ from the process with rank _Root_ to all other processes. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #true cat << "EOF" > tmp /** @pred mpi_barrier Collective communication predicate. Performs a barrier synchronization among all processes. Note that a collective communication means that all processes call the same predicate. To be able to use a regular `mpi_recv` to receive the messages, one should use `mpi_bcast2`. */ EOF sed -e "188r tmp" /Users/vsc/git/yap-6.3/library/lam_mpi.yap > x mv x /Users/vsc/git/yap-6.3/library/lam_mpi.yap #false cat << "EOF" > tmp /** @pred mpi_default_buffer_size(- _OldBufferSize_, ? _NewBufferSize_) The _OldBufferSize_ argument unifies with the current size of the MPI communication buffer size and sets the communication buffer size _NewBufferSize_. The buffer is used for assynchronous waiting and for broadcast receivers. Notice that buffer is local at each MPI process. */ EOF sed -e "1050r tmp" /Users/vsc/git/yap-6.3/library/lammpi/yap_mpi.c > x mv x /Users/vsc/git/yap-6.3/library/lammpi/yap_mpi.c #false cat << "EOF" > tmp /** @pred mpi_ibcast(+ _Root_, + _Data_, + _Tag_) Non-blocking operation. Broadcasts the message _Data_ with tag _Tag_ from the process with rank _Root_ to all other processes. */ EOF sed -e "1038r tmp" /Users/vsc/git/yap-6.3/library/lammpi/yap_mpi.c > x mv x /Users/vsc/git/yap-6.3/library/lammpi/yap_mpi.c #false cat << "EOF" > tmp /** @pred mpi_bcast3(+ _Root_, + _Data_, + _Tag_) Broadcasts the message _Data_ with tag _Tag_ from the process with rank _Root_ to all other processes. */ EOF sed -e "1028r tmp" /Users/vsc/git/yap-6.3/library/lammpi/yap_mpi.c > x mv x /Users/vsc/git/yap-6.3/library/lammpi/yap_mpi.c #false cat << "EOF" > tmp /** @pred split(+ _Line_,- _Split_) Unify _Words_ with a set of strings obtained from _Line_ by using the blank characters as separators. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #false cat << "EOF" > tmp /** @pred search_for(+ _Char_,+ _Line_,- _RestOfine_) Search for a character _Char_ in the list of codes _Line_, _RestOfLine_ has the line to the right. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #false cat << "EOF" > tmp /** @pred scan_natural(? _Nat_,+ _Line_,+ _RestOfLine_) Scan the list of codes _Line_ for a natural number _Nat_, zero or a positive integer, and unify _RestOfLine_ with the remainder of the line. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #false cat << "EOF" > tmp /** @pred scan_integer(? _Int_,+ _Line_,+ _RestOfLine_) Scan the list of codes _Line_ for an integer _Nat_, either a positive, zero, or negative integer, and unify _RestOfLine_ with the remainder of the line. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #false cat << "EOF" > tmp /** @pred glue(+ _Words_,+ _Separator_,- _Line_) Unify _Line_ with string obtained by glueing _Words_ with the character code _Separator_. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #false cat << "EOF" > tmp /** @pred filter(+ _StreamInp_, + _StreamOut_, + _Goal_) For every line _LineIn_ in stream _StreamInp_, execute `call(Goal,LineIn,LineOut)`, and output _LineOut_ to stream _StreamOut_. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #false cat << "EOF" > tmp /** @pred file_filter_with_initialization(+ _FileIn_, + _FileOut_, + _Goal_, + _FormatCommand_, + _Arguments_) Same as file_filter/3, but before starting the filter execute `format/3` on the output stream, using _FormatCommand_ and _Arguments_. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #false cat << "EOF" > tmp /** @pred file_filter(+ _FileIn_, + _FileOut_, + _Goal_) For every line _LineIn_ in file _FileIn_, execute `call(Goal,LineIn,LineOut)`, and output _LineOut_ to file _FileOut_. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #false cat << "EOF" > tmp /** @pred fields(+ _Line_,- _Split_) Unify _Words_ with a set of strings obtained from _Line_ by using the blank characters as field separators. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #true cat << "EOF" > tmp /** @pred fields(+ _Line_,+ _Separators_,- _Split_) Unify _Words_ with a set of strings obtained from _Line_ by using the character codes in _Separators_ as separators for fields. If two separators occur in a row, the field is considered empty. As an example, consider: ~~~~~{.prolog} ?- fields("Hello I am free"," *",S). S = ["Hello","","I","am","","free"] ? ~~~~~ */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #true cat << "EOF" > tmp /** @pred copy_line(+ _StreamInput_,+ _StreamOutput_) Copy a line from _StreamInput_ to _StreamOutput_. */ EOF sed -e "1r tmp" /Users/vsc/git/yap-6.3/library/lineutils.yap > x mv x /Users/vsc/git/yap-6.3/library/lineutils.yap #true cat << "EOF" > tmp /** @pred sumlist(? _Numbers_, ? _Total_) True when _Numbers_ is a list of integers, and _Total_ is their sum. The same as sum_list/2, please do use sum_list/2 instead. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred sum_list(? _Numbers_, ? _Total_) True when _Numbers_ is a list of numbers, and _Total_ is their sum. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred sum_list(? _Numbers_, + _SoFar_, ? _Total_) True when _Numbers_ is a list of numbers, and _Total_ is the sum of their total plus _SoFar_. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred suffix(? _Suffix_, ? _List_) Holds when `append(_,Suffix,List)` holds. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred subtract(+ _Set_, + _Delete_, ? _Result_) Delete all elements from _Set_ that occur in _Delete_ (a set) and unify the result with _Result_. Deletion is based on unification using memberchk/2. The complexity is `|Delete|\*|Set|`. See ord_subtract/3. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred sublist(? _Sublist_, ? _List_) True when both `append(_,Sublist,S)` and `append(S,_,List)` hold. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred selectchk(? _Element_, ? _List_, ? _Residue_) Semi-deterministic selection from a list. Steadfast: defines as ~~~~~{.prolog} selectchk(Elem, List, Residue) :- select(Elem, List, Rest0), !, Rest = Rest0. ~~~~~ */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred select(? _Element_, ? _List_, ? _Residue_) True when _Set_ is a list, _Element_ occurs in _List_, and _Residue_ is everything in _List_ except _Element_ (things stay in the same order). */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred same_length(? _List1_, ? _List2_) True when _List1_ and _List2_ are both lists and have the same number of elements. No relation between the values of their elements is implied. Modes `same_length(-,+)` and `same_length(+,-)` generate either list given the other; mode `same_length(-,-)` generates two lists of the same length, in which case the arguments will be bound to lists of length 0, 1, 2, ... */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred remove_duplicates(+ _List_, ? _Pruned_) Removes duplicated elements from _List_. Beware: if the _List_ has non-ground elements, the result may surprise you. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred permutation(+ _List_,? _Perm_) True when _List_ and _Perm_ are permutations of each other. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred numlist(+ _Low_, + _High_, + _List_) If _Low_ and _High_ are integers with _Low_ =< _High_, unify _List_ to a list `[Low, Low+1, ...High]`. See also between/3. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred nth1(? _N_, ? _List_, ? _Elem_, ? _Rest_) Unifies _Elem_ with the Nth element of _List_, counting from 1, and _Rest_ with the other elements. It can be used to select the Nth element of _List_ (yielding _Elem_ and _Rest_), or to insert _Elem_ before the Nth (counting from 1) element of _Rest_, when it yields _List_, e.g. `nth(3, List, c, [a,b,d,e])` unifies List with `[a,b,c,d,e]`. `nth/4` can be used to insert _Elem_ after the Nth element of _Rest_. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred nth1(? _N_, ? _List_, ? _Elem_) The same as nth0/3, except that it counts from 1, that is `nth(1, [H|_], H)`. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred nth1(+ _Index_,? _List_,? _Elem_) Succeeds when the _Index_-th element of _List_ unifies with _Elem_. Counting starts at 1. Set environment variable. _Name_ and _Value_ should be instantiated to atoms or integers. The environment variable will be passed to `shell/[0-2]` and can be requested using `getenv/2`. They also influence expand_file_name/2. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred nth0(? _N_, ? _List_, ? _Elem_, ? _Rest_) Unifies _Elem_ with the Nth element of _List_, counting from 0, and _Rest_ with the other elements. It can be used to select the Nth element of _List_ (yielding _Elem_ and _Rest_), or to insert _Elem_ before the Nth (counting from 1) element of _Rest_, when it yields _List_, e.g. `nth0(2, List, c, [a,b,d,e])` unifies List with `[a,b,c,d,e]`. `nth/4` is the same except that it counts from 1. `nth0/4` can be used to insert _Elem_ after the Nth element of _Rest_. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred nth0(? _N_, ? _List_, ? _Elem_) True when _Elem_ is the Nth member of _List_, counting the first as element 0. (That is, throw away the first N elements and unify _Elem_ with the next.) It can only be used to select a particular element given the list and index. For that task it is more efficient than member/2 */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred nth(? _N_, ? _List_, ? _Elem_, ? _Rest_) Same as `nth1/4`. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred nth(? _N_, ? _List_, ? _Elem_) The same as nth1/3. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred min_list(? _Numbers_, ? _Min_) True when _Numbers_ is a list of numbers, and _Min_ is the minimum. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred max_list(? _Numbers_, ? _Max_) True when _Numbers_ is a list of numbers, and _Max_ is the maximum. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #false cat << "EOF" > tmp /** @pred list_concat(+ _Lists_,? _List_) True when _Lists_ is a list of lists and _List_ is the concatenation of _Lists_. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred last(+ _List_,? _Last_) True when _List_ is a list and _Last_ is identical to its last element. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred intersection(+ _Set1_, + _Set2_, + _Set3_) Succeeds if _Set3_ unifies with the intersection of _Set1_ and _Set2_. _Set1_ and _Set2_ are lists without duplicates. They need not be ordered. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred flatten(+ _List_, ? _FlattenedList_) Flatten a list of lists _List_ into a single list _FlattenedList_. ~~~~~{.prolog} ?- flatten([[1],[2,3],[4,[5,6],7,8]],L). L = [1,2,3,4,5,6,7,8] ? ; no ~~~~~ */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred append(? _Lists_,? _Combined_) Holds if the lists of _Lists_ can be concatenated as a _Combined_ list. */ EOF sed -e "261r tmp" /Users/vsc/git/yap-6.3/library/lists.yap > x mv x /Users/vsc/git/yap-6.3/library/lists.yap #true cat << "EOF" > tmp /** @pred maplist(+ _Pred_,+ _List1_,+ _List2_,+ _List4_) Apply _Pred_ on all successive triples of elements from _List1_, _List2_ and _List3_. Fails if _Pred_ can not be applied to a triple. See the example above. */ EOF sed -e "98r tmp" /Users/vsc/git/yap-6.3/library/maplist.yap > x mv x /Users/vsc/git/yap-6.3/library/maplist.yap #true cat << "EOF" > tmp /** @pred maplist(+ _Pred_,+ _List1_,+ _List2_) Apply _Pred_ on all successive pairs of elements from _List1_ and _List2_. Fails if _Pred_ can not be applied to a pair. See the example above. */ EOF sed -e "98r tmp" /Users/vsc/git/yap-6.3/library/maplist.yap > x mv x /Users/vsc/git/yap-6.3/library/maplist.yap #false cat << "EOF" > tmp /** @pred matlab_zeros(+ _Size_, ? _Array_) MATLAB will create a vector of zeros of size _Size_, and if _Array_ is bound to an atom, store the array in the matlab variable with name _Array_. Corresponds to the MATLAB command `zeros`. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_zeros(+ _SizeX_, + _SizeY_, ? _Array_) MATLAB will create an array of zeros of size _SizeX_ and _SizeY_, and if _Array_ is bound to an atom, store the array in the matlab variable with name _Array_. Corresponds to the MATLAB command `zeros`. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_zeros(+ _SizeX_, + _SizeY_, + _SizeZ_, ? _Array_) MATLAB will create an array of zeros of size _SizeX_, _SizeY_, and _SizeZ_. If _Array_ is bound to an atom, store the array in the matlab variable with name _Array_. Corresponds to the MATLAB command `zeros`. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_vector(+ _Size_, + _List_, ? _Array_) MATLAB will create a vector of floats of size _Size_, initialized from the list _List_, and if _Array_ is bound to an atom, store the array in the matlab variable with name _Array_. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_set(+ _MatVar_, + _X_, + _Y_, + _Value_) Call MATLAB to set element _MatVar_( _X_, _Y_) to _Value_. Notice that this command uses the MATLAB array access convention. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_sequence(+ _Min_, + _Max_, ? _Array_) MATLAB will create a sequence going from _Min_ to _Max_, and if _Array_ is bound to an atom, store the sequence in the matlab variable with name _Array_. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_on Holds if a matlab session is on. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_matrix(+ _SizeX_, + _SizeY_, + _List_, ? _Array_) MATLAB will create an array of floats of size _SizeX_ and _SizeY_, initialized from the list _List_, and if _Array_ is bound to an atom, store the array in the matlab variable with name _Array_. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_item1(+ _MatVar_, + _X_, ? _Val_) Read or set MATLAB _MatVar_( _X_) from/to _Val_. Use MATLAB notation for matrix access (ie, starting from 1). */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_item1(+ _MatVar_, + _X_, + _Y_, ? _Val_) Read or set MATLAB _MatVar_( _X_, _Y_) from/to _Val_. Use MATLAB notation for matrix access (ie, starting from 1). */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_item(+ _MatVar_, + _X_, ? _Val_) Read or set MATLAB _MatVar_( _X_) from/to _Val_. Use `C` notation for matrix access (ie, starting from 0). */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_item(+ _MatVar_, + _X_, + _Y_, ? _Val_) Read or set MATLAB _MatVar_( _X_, _Y_) from/to _Val_. Use `C` notation for matrix access (ie, starting from 0). */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_initialized_cells(+ _SizeX_, + _SizeY_, + _List_, ? _Array_) MATLAB will create an array of cells of size _SizeX_ and _SizeY_, initialized from the list _List_, and if _Array_ is bound to an atom, store the array in the matlab variable with name _Array_. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_get_variable(+ _MatVar_, - _List_) Unify MATLAB variable _MatVar_ with the List _List_. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_eval_string(+ _Command_, - _Answer_) MATLAB will evaluate the command _Command_ and unify _Answer_ with a string reporting the result. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_eval_string(+ _Command_) Holds if matlab evaluated successfully the command _Command_. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_cells(+ _Size_, ? _Array_) MATLAB will create an empty vector of cells of size _Size_, and if _Array_ is bound to an atom, store the array in the matlab variable with name _Array_. Corresponds to the MATLAB command `cells`. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matlab_cells(+ _SizeX_, + _SizeY_, ? _Array_) MATLAB will create an empty array of cells of size _SizeX_ and _SizeY_, and if _Array_ is bound to an atom, store the array in the matlab variable with name _Array_. Corresponds to the MATLAB command `cells`. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred close_matlab Stop the current matlab session. */ EOF sed -e "192r tmp" /Users/vsc/git/yap-6.3/library/matlab.yap > x mv x /Users/vsc/git/yap-6.3/library/matlab.yap #false cat << "EOF" > tmp /** @pred matrix_type(+ _Matrix_,- _Type_) Unify _NElems_ with the type of the elements in _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_transpose(+ _Matrix_,- _Transpose_) Transpose matrix _Matrix_ to _Transpose_. Equivalent to: ~~~~~ matrix_transpose(Matrix,Transpose) :- matrix_shuffle(Matrix,[1,0],Transpose). ~~~~~ */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_to_list(+ _Matrix_,- _Elems_) Unify _Elems_ with the list including all the elements in _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_sum(+ _Matrix_,+ _Sum_) Unify _Sum_ with the sum of all elements in matrix _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_size(+ _Matrix_,- _NElems_) Unify _NElems_ with the number of elements for _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_shuffle(+ _Matrix_,+ _NewOrder_,- _Shuffle_) Shuffle the dimensions of matrix _Matrix_ according to _NewOrder_. The list _NewOrder_ must have all the dimensions of _Matrix_, starting from 0. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_set_all(+ _Matrix_,+ _Elem_) Set all element of _Matrix_ to _Elem_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_set(+ _Matrix_[+ _Position_],+ _Elem_) Set the element of _Matrix_[ _Position_] to _Elem_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_set(+ _Matrix_,+ _Position_,+ _Elem_) Set the element of _Matrix_ at position _Position_ to _Elem_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_select(+ _Matrix_,+ _Dimension_,+ _Index_,- _New_) Select from _Matrix_ the elements who have _Index_ at _Dimension_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_op_to_lines(+ _Matrix1_,+ _Lines_,+ _Op_,- _Result_) _Result_ is the result of applying _Op_ to all elements of _Matrix1_, with the corresponding element in _Lines_ as the second argument. Currently, only division (`/`) is supported. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_op_to_cols(+ _Matrix1_,+ _Cols_,+ _Op_,- _Result_) _Result_ is the result of applying _Op_ to all elements of _Matrix1_, with the corresponding element in _Cols_ as the second argument. Currently, only addition (`+`) is supported. Notice that _Cols_ will have n-1 dimensions. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_op_to_all(+ _Matrix1_,+ _Op_,+ _Operand_,- _Result_) _Result_ is the result of applying _Op_ to all elements of _Matrix1_, with _Operand_ as the second argument. Currently, only addition (`+`), multiplication (`\*`), and division (`/`) are supported. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_op(+ _Matrix1_,+ _Matrix2_,+ _Op_,- _Result_) _Result_ is the result of applying _Op_ to matrix _Matrix1_ and _Matrix2_. Currently, only addition (`+`) is supported. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_offset_to_arg(+ _Matrix_,- _Offset_,+ _Position_) Given a position _Position _ for matrix _Matrix_ return the corresponding numerical _Offset_ from the beginning of the matrix. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_new_set(? _Dims_,+ _OldMatrix_,+ _Value_,- _NewMatrix_) Create a new matrix _NewMatrix_ of type _Type_, with dimensions _Dims_. The elements of _NewMatrix_ are set to _Value_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_new(+ _Type_,+ _Dims_,- _Matrix_) Create a new matrix _Matrix_ of type _Type_, which may be one of `ints` or `floats`, and with a list of dimensions _Dims_. The matrix will be initialised to zeros. ~~~~~ ?- matrix_new(ints,[2,3],Matrix). Matrix = {..} ~~~~~ Notice that currently YAP will always write a matrix of numbers as `{..}`. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_new(+ _Type_,+ _Dims_,+ _List_,- _Matrix_) Create a new matrix _Matrix_ of type _Type_, which may be one of `ints` or `floats`, with dimensions _Dims_, and initialised from list _List_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_ndims(+ _Matrix_,- _Dims_) Unify _NDims_ with the number of dimensions for _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_minarg(+ _Matrix_,+ _Minarg_) Unify _Min_ with the position of the minimum in matrix _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_min(+ _Matrix_,+ _Min_) Unify _Min_ with the minimum in matrix _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_maxarg(+ _Matrix_,+ _Maxarg_) Unify _Max_ with the position of the maximum in matrix _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_max(+ _Matrix_,+ _Max_) Unify _Max_ with the maximum in matrix _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_inc(+ _Matrix_,+ _Position_,- _Element_) Increment the element of _Matrix_ at position _Position_ and unify with _Element_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_inc(+ _Matrix_,+ _Position_) Increment the element of _Matrix_ at position _Position_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_get(+ _Matrix_[+ _Position_],- _Elem_) Unify _Elem_ with the element _Matrix_[ _Position_]. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_get(+ _Matrix_,+ _Position_,- _Elem_) Unify _Elem_ with the element of _Matrix_ at position _Position_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_expand(+ _Matrix_,+ _NewDimensions_,- _New_) Expand _Matrix_ to occupy new dimensions. The elements in _NewDimensions_ are either 0, for an existing dimension, or a positive integer with the size of the new dimension. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_dims(+ _Matrix_,- _Dims_) Unify _Dims_ with a list of dimensions for _Matrix_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_dec(+ _Matrix_,+ _Position_,- _Element_) Decrement the element of _Matrix_ at position _Position_ and unify with _Element_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_dec(+ _Matrix_,+ _Position_) Decrement the element of _Matrix_ at position _Position_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_column(+ _Matrix_,+ _Column_,- _NewMatrix_) Select from _Matrix_ the column matching _Column_ as new matrix _NewMatrix_. _Column_ must have one less dimension than the original matrix. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_arg_to_offset(+ _Matrix_,+ _Position_,- _Offset_) Given matrix _Matrix_ return what is the numerical _Offset_ of the element at _Position_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_agg_lines(+ _Matrix_,+Operator,+ _Aggregate_) If _Matrix_ is a n-dimensional matrix, unify _Aggregate_ with the n-1 dimensional matrix where each element is obtained by adding all _Matrix_ elements with same last n-1 index. Currently, only addition is supported. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_agg_cols(+ _Matrix_,+Operator,+ _Aggregate_) If _Matrix_ is a n-dimensional matrix, unify _Aggregate_ with the one dimensional matrix where each element is obtained by adding all Matrix elements with same first index. Currently, only addition is supported. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #false cat << "EOF" > tmp /** @pred matrix_add(+ _Matrix_,+ _Position_,+ _Operand_) Add _Operand_ to the element of _Matrix_ at position _Position_. */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #true cat << "EOF" > tmp /** @pred ?_LHS_ <== ?_RHS_ is semidet General matrix assignment operation. It evaluates the right-hand side and then acts different according to the left-hand side and to the matrix: + if _LHS_ is part of an integer or floating-point matrix, perform non-backtrackable assignment. + other unify left-hand side and right-hand size. The right-hand side supports the following operators: + `[]/2` written as _M_[ _Offset_]: obtain an element or list of elements of matrix _M_ at offset _Offset_. + `matrix/1` create a vector from a list + `matrix/2` create a matrix from a list. Options are: + dim= a list of dimensions + type= integers, floating-point or terms + base= a list of base offsets per dimension (all must be the same for arrays of integers and floating-points + `matrix/3` create matrix giving two options + `dim/1` list with matrix dimensions + `nrow/1` number of rows in bi-dimensional matrix + `ncol/1` number of columns in bi-dimensional matrix + `length/1` size of a matrix + `size/1` size of a matrix + `max/1` maximum element of a numeric matrix + `maxarg/1` argument of maximum element of a numeric matrix + `min/1` minimum element of a numeric matrix + `minarg/1` argument of minimum element of a numeric matrix + `list/1` represent matrix as a list + `lists/2` represent matrix as list of embedded lists + `../2` _I_.. _J_ generates a list with all integers from _I_ to _J_, included. + `+/2` add two numbers, add two matrices element-by-element, or add a number to all elements of a matrix or list. + `-/2 ` subtract two numbers, subtract two matrices or lists element-by-element, or subtract a number from all elements of a matrix or list + `* /2` multiply two numbers, multiply two matrices or lists element-by-element, or multiply a number from all elements of a matrix or list + `log/1` natural logarithm of a number, matrix or list + `exp/1 ` natural exponentiation of a number, matrix or list */ EOF sed -e "571r tmp" /Users/vsc/git/yap-6.3/library/matrix.yap > x mv x /Users/vsc/git/yap-6.3/library/matrix.yap #true cat << "EOF" > tmp /** @pred nb_queue_size(+ _Queue_, - _Size_) Unify _Size_ with the number of elements in the queue _Queue_. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_queue_peek(+ _Queue_, - _Element_) _Element_ is the front of the queue _Queue_. Fail if the queue is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_queue_enqueue(+ _Queue_, + _Element_) Add _Element_ to the front of the queue _Queue_. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_queue_empty(+ _Queue_) Succeeds if _Queue_ is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_queue_dequeue(+ _Queue_, - _Element_) Remove _Element_ from the front of the queue _Queue_. Fail if the queue is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_queue_close(+ _Queue_, - _Head_, ? _Tail_) Unify the queue _Queue_ with a difference list _Head_- _Tail_. The queue will now be empty and no further elements can be added. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_queue(- _Queue_) Create a _Queue_. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_heap_size(+ _Heap_, - _Size_) Unify _Size_ with the number of elements in the heap _Heap_. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_heap_peek(+ _Heap_, - _Key_, - _Value_)) _Key_- _Value_ is the element with smallest _Key_ in the heap _Heap_. Fail if the heap is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_heap_empty(+ _Heap_) Succeeds if _Heap_ is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_heap_del(+ _Heap_, - _Key_, - _Value_) Remove element _Key_- _Value_ with smallest _Value_ in heap _Heap_. Fail if the heap is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_heap_close(+ _Heap_) Close the heap _Heap_: no further elements can be added. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_heap_add(+ _Heap_, + _Key_, + _Value_) Add _Key_- _Value_ to the heap _Heap_. The key is sorted on _Key_ only. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_heap(+ _DefaultSize_,- _Heap_) Create a _Heap_ with default size _DefaultSize_. Note that size will expand as needed. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_beam_size(+ _Beam_, - _Size_) Unify _Size_ with the number of elements in the beam _Beam_. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_beam_peek(+ _Beam_, - _Key_, - _Value_)) _Key_- _Value_ is the element with smallest _Key_ in the beam _Beam_. Fail if the beam is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_beam_empty(+ _Beam_) Succeeds if _Beam_ is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_beam_del(+ _Beam_, - _Key_, - _Value_) Remove element _Key_- _Value_ with smallest _Value_ in beam _Beam_. Fail if the beam is empty. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_beam_close(+ _Beam_) Close the beam _Beam_: no further elements can be added. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_beam_add(+ _Beam_, + _Key_, + _Value_) Add _Key_- _Value_ to the beam _Beam_. The key is sorted on _Key_ only. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #true cat << "EOF" > tmp /** @pred nb_beam(+ _DefaultSize_,- _Beam_) Create a _Beam_ with default size _DefaultSize_. Note that size is fixed throughout. */ EOF sed -e "190r tmp" /Users/vsc/git/yap-6.3/library/nb.yap > x mv x /Users/vsc/git/yap-6.3/library/nb.yap #false cat << "EOF" > tmp /** @pred ord_union(+ _Sets_, ? _Union_) Holds when _Union_ is the union of the lists _Sets_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_union(+ _Set1_, + _Set2_, ? _Union_, ? _Diff_) Holds when _Union_ is the union of _Set1_ and _Set2_ and _Diff_ is the difference. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_union(+ _Set1_, + _Set2_, ? _Union_) Holds when _Union_ is the union of _Set1_ and _Set2_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_symdiff(+ _Set1_, + _Set2_, ? _Difference_) Holds when _Difference_ is the symmetric difference of _Set1_ and _Set2_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_subtract(+ _Set1_, + _Set2_, ? _Difference_) Holds when _Difference_ contains all and only the elements of _Set1_ which are not also in _Set2_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_subset(+ _Set1_, + _Set2_) Holds when every element of the ordered set _Set1_ appears in the ordered set _Set2_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_setproduct(+ _Set1_, + _Set2_, - _Set_) If Set1 and Set2 are ordered sets, Product will be an ordered set of x1-x2 pairs. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_seteq(+ _Set1_, + _Set2_) Holds when the two arguments represent the same set. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_member(+ _Element_, + _Set_) Holds when _Element_ is a member of _Set_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_intersection(+ _Set1_, + _Set2_, ? _Intersection_, ? _Diff_) Holds when Intersection is the ordered representation of _Set1_ and _Set2_. _Diff_ is the difference between _Set2_ and _Set1_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_intersection(+ _Set1_, + _Set2_, ? _Intersection_) Holds when Intersection is the ordered representation of _Set1_ and _Set2_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_intersect(+ _Set1_, + _Set2_) Holds when the two ordered sets have at least one element in common. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_insert(+ _Set1_, + _Element_, ? _Set2_) Inserting _Element_ in _Set1_ returns _Set2_. It should give exactly the same result as `merge(Set1, [Element], Set2)`, but a bit faster, and certainly more clearly. The same as ord_add_element/3. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_disjoint(+ _Set1_, + _Set2_) Holds when the two ordered sets have no element in common. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_del_element(+ _Set1_, + _Element_, ? _Set2_) Removing _Element_ from _Set1_ returns _Set2_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ord_add_element(+ _Set1_, + _Element_, ? _Set2_) Inserting _Element_ in _Set1_ returns _Set2_. It should give exactly the same result as `merge(Set1, [Element], Set2)`, but a bit faster, and certainly more clearly. The same as ord_insert/3. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #true cat << "EOF" > tmp /** @pred merge(+ _List1_, + _List2_, - _Merged_) Holds when _Merged_ is the stable merge of the two given lists. Notice that merge/3 will not remove duplicates, so merging ordered sets will not necessarily result in an ordered set. Use `ord_union/3` instead. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred list_to_ord_set(+ _List_, ? _Set_) Holds when _Set_ is the ordered representation of the set represented by the unordered representation _List_. */ EOF sed -e "175r tmp" /Users/vsc/git/yap-6.3/library/ordsets.yap > x mv x /Users/vsc/git/yap-6.3/library/ordsets.yap #false cat << "EOF" > tmp /** @pred ranunif(+ _Range_,- _I_) ranunif/2 produces a uniformly distributed non-negative random integer _I_ over a caller-specified range _R_. If range is _R_, the result is in 0 .. _R_-1. */ EOF sed -e "91r tmp" /Users/vsc/git/yap-6.3/library/prandom.yap > x mv x /Users/vsc/git/yap-6.3/library/prandom.yap #false cat << "EOF" > tmp /** @pred ranstart(+ _Seed_) Initialize the random number generator with user-defined _Seed_. The same _Seed_ always produces the same sequence of numbers. */ EOF sed -e "91r tmp" /Users/vsc/git/yap-6.3/library/prandom.yap > x mv x /Users/vsc/git/yap-6.3/library/prandom.yap #false cat << "EOF" > tmp /** @pred ranstart Initialize the random number generator using a built-in seed. The ranstart/0 built-in is always called by the system when loading the package. */ EOF sed -e "91r tmp" /Users/vsc/git/yap-6.3/library/prandom.yap > x mv x /Users/vsc/git/yap-6.3/library/prandom.yap #false cat << "EOF" > tmp /** @pred rannum(- _I_) Produces a random non-negative integer _I_ whose low bits are not all that random, so it should be scaled to a smaller range in general. The integer _I_ is in the range 0 .. 2^(w-1) - 1. You can use: ~~~~~ rannum(X) :- yap_flag(max_integer,MI), rannum(R), X is R/MI. ~~~~~ to obtain a floating point number uniformly distributed between 0 and 1. */ EOF sed -e "91r tmp" /Users/vsc/git/yap-6.3/library/prandom.yap > x mv x /Users/vsc/git/yap-6.3/library/prandom.yap #false cat << "EOF" > tmp /** @pred serve_queue(+ _OldQueue_, + _Head_, - _NewQueue_) Removes the first element of the queue for service. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred queue_to_list(+ _Queue_, - _List_) Creates a new list with the same elements as _Queue_. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred list_to_queue(+ _List_, - _Queue_) Creates a new queue with the same elements as _List._ */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred list_jump_queue(+ _List_, + _OldQueue_, + _NewQueue_) Adds all the elements of _List_ at the front of the queue. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred list_join_queue(+ _List_, + _OldQueue_, - _NewQueue_) Ads the new elements at the end of the queue. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred length_queue(+ _Queue_, - _Length_) Counts the number of elements currently in the queue. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred jump_queue(+ _Element_, + _OldQueue_, - _NewQueue_) Adds the new element at the front of the list. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred join_queue(+ _Element_, + _OldQueue_, - _NewQueue_) Adds the new element at the end of the queue. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred head_queue(+ _Queue_, ? _Head_) Unifies Head with the first element of the queue. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred empty_queue(+ _Queue_) Tests whether the queue is empty. */ EOF sed -e "101r tmp" /Users/vsc/git/yap-6.3/library/queues.yap > x mv x /Users/vsc/git/yap-6.3/library/queues.yap #false cat << "EOF" > tmp /** @pred setrand(+ _Key_) Use a term of the form `rand(X,Y,Z)` to set a new state for the random number generator. The integer `X` must be in the range `[1...30269)`, the integer `Y` must be in the range `[1...30307)`, and the integer `Z` must be in the range `[1...30323)`. */ EOF sed -e "106r tmp" /Users/vsc/git/yap-6.3/library/random.yap > x mv x /Users/vsc/git/yap-6.3/library/random.yap #false cat << "EOF" > tmp /** @pred randset(+ _LENGTH_, + _MAX_, - _Numbers_) Unify _Numbers_ with an ordered list of _LENGTH_ unique random integers in the range `[1... _MAX_)`. */ EOF sed -e "106r tmp" /Users/vsc/git/yap-6.3/library/random.yap > x mv x /Users/vsc/git/yap-6.3/library/random.yap #false cat << "EOF" > tmp /** @pred randseq(+ _LENGTH_, + _MAX_, - _Numbers_) Unify _Numbers_ with a list of _LENGTH_ unique random integers in the range `[1... _MAX_)`. */ EOF sed -e "106r tmp" /Users/vsc/git/yap-6.3/library/random.yap > x mv x /Users/vsc/git/yap-6.3/library/random.yap #false cat << "EOF" > tmp /** @pred random(- _Number_) Unify _Number_ with a floating-point number in the range `[0...1)`. */ EOF sed -e "106r tmp" /Users/vsc/git/yap-6.3/library/random.yap > x mv x /Users/vsc/git/yap-6.3/library/random.yap #false cat << "EOF" > tmp /** @pred random(+ _LOW_, + _HIGH_, - _NUMBER_) Unify _Number_ with a number in the range `[LOW...HIGH)`. If both _LOW_ and _HIGH_ are integers then _NUMBER_ will also be an integer, otherwise _NUMBER_ will be a floating-point number. */ EOF sed -e "106r tmp" /Users/vsc/git/yap-6.3/library/random.yap > x mv x /Users/vsc/git/yap-6.3/library/random.yap #false cat << "EOF" > tmp /** @pred rb_visit(+ _T_,- _Pairs_) _Pairs_ is an infix visit of tree _T_, where each element of _Pairs_ is of the form _K_- _Val_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_update(+ _T_,+ _Key_,+ _NewVal_,- _TN_) Tree _TN_ is tree _T_, but with value for _Key_ associated with _NewVal_. Fails if it cannot find _Key_ in _T_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_size(+ _T_,- _Size_) _Size_ is the number of elements in _T_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_previous(+ _T_, + _Key_,- _Previous_,- _Value_) _Previous_ is the previous element after _Key_ in _T_, and is associated with _Val_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_partial_map(+ _T_,+ _Keys_,+ _G_,- _TN_) For all nodes _Key_ in _Keys_, if the value associated with key _Key_ is _Val0_ in tree _T_, and if `call(G,Val0,ValF)` holds, then the value associated with _Key_ in _TN_ is _ValF_. Fails if or if `call(G,Val0,ValF)` is not satisfiable for all _Var0_. Assumes keys are not repeated. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_next(+ _T_, + _Key_,- _Next_,- _Value_) _Next_ is the next element after _Key_ in _T_, and is associated with _Val_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_new(? _T_) Create a new tree. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_min(+ _T_,- _Key_,- _Value_) _Key_ is the minimum key in _T_, and is associated with _Val_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_max(+ _T_,- _Key_,- _Value_) _Key_ is the maximal key in _T_, and is associated with _Val_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_map(+ _T_,+ _G_,- _TN_) For all nodes _Key_ in the tree _T_, if the value associated with key _Key_ is _Val0_ in tree _T_, and if `call(G,Val0,ValF)` holds, then the value associated with _Key_ in _TN_ is _ValF_. Fails if or if `call(G,Val0,ValF)` is not satisfiable for all _Var0_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_lookupall(+ _Key_,- _Value_,+ _T_) Lookup all elements with key _Key_ in the red-black tree _T_, returning the value _Value_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_lookup(+ _Key_,- _Value_,+ _T_) Backtrack through all elements with key _Key_ in the red-black tree _T_, returning for each the value _Value_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_keys(+ _T_,+ _Keys_) _Keys_ is an infix visit with all keys in tree _T_. Keys will be sorted, but may be duplicate. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_key_fold(+ _T_,+ _G_,+ _Acc0_, - _AccF_) For all nodes _Key_ in the tree _T_, if the value associated with key _Key_ is _V_ in tree _T_, if `call(G,Key,V,Acc1,Acc2)` holds, then if _VL_ is value of the previous node in inorder, `call(G,KeyL,VL,_,Acc0)` must hold, and if _VR_ is the value of the next node in inorder, `call(G,KeyR,VR,Acc1,_)` must hold. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_insert(+ _T0_,+ _Key_,? _Value_,+ _TF_) Add an element with key _Key_ and _Value_ to the tree _T0_ creating a new red-black tree _TF_. Duplicated elements are not allowed. Add a new element with key _Key_ and _Value_ to the tree _T0_ creating a new red-black tree _TF_. Fails is an element with _Key_ exists in the tree. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_fold(+ _T_,+ _G_,+ _Acc0_, - _AccF_) For all nodes _Key_ in the tree _T_, if the value associated with key _Key_ is _V_ in tree _T_, if `call(G,V,Acc1,Acc2)` holds, then if _VL_ is value of the previous node in inorder, `call(G,VL,_,Acc0)` must hold, and if _VR_ is the value of the next node in inorder, `call(G,VR,Acc1,_)` must hold. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_empty(? _T_) Succeeds if tree _T_ is empty. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_delete(+ _T_,+ _Key_,- _Val_,- _TN_) Delete element with key _Key_ from the tree _T_, returning the value _Val_ associated with the key and a new tree _TN_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_delete(+ _T_,+ _Key_,- _TN_) Delete element with key _Key_ from the tree _T_, returning a new tree _TN_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_del_min(+ _T_,- _Key_,- _Val_,- _TN_) Delete the least element from the tree _T_, returning the key _Key_, the value _Val_ associated with the key and a new tree _TN_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_del_max(+ _T_,- _Key_,- _Val_,- _TN_) Delete the largest element from the tree _T_, returning the key _Key_, the value _Val_ associated with the key and a new tree _TN_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_clone(+ _T_,+ _NT_,+ _Nodes_) =Clone= the red-back tree into a new tree with the same keys as the original but with all values set to unbound values. _Nodes_ is a list containing all new nodes as pairs _K-V_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred rb_apply(+ _T_,+ _Key_,+ _G_,- _TN_) If the value associated with key _Key_ is _Val0_ in _T_, and if `call(G,Val0,ValF)` holds, then _TN_ differs from _T_ only in that _Key_ is associated with value _ValF_ in tree _TN_. Fails if it cannot find _Key_ in _T_, or if `call(G,Val0,ValF)` is not satisfiable. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred ord_list_to_rbtree(+ _L_, - _T_) _T_ is the red-black tree corresponding to the mapping in ordered list _L_. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred is_rbtree(+ _T_) Check whether _T_ is a valid red-black tree. */ EOF sed -e "13r tmp" /Users/vsc/git/yap-6.3/library/rbtrees.yap > x mv x /Users/vsc/git/yap-6.3/library/rbtrees.yap #false cat << "EOF" > tmp /** @pred regexp(+ _RegExp_,+ _String_,+ _Opts_,? _SubMatchVars_) Match regular expression _RegExp_ to input string _String_ according to options _Opts_. The variable _SubMatchVars_ should be originally unbound or a list of unbound variables all will contain a sequence of matches, that is, the head of _SubMatchVars_ will contain the characters in _String_ that matched the leftmost parenthesized subexpression within _RegExp_, the next head of list will contain the characters that matched the next parenthesized subexpression to the right in _RegExp_, and so on. The options may be: + `nocase`: Causes upper-case characters in _String_ to be treated as lower case during the matching process. + `indices`: Changes what is stored in _SubMatchVars_. Instead of storing the matching characters from _String_, each variable will contain a term of the form _IO-IF_ giving the indices in _String_ of the first and last characters in the matching range of characters. In general there may be more than one way to match a regular expression to an input string. For example, consider the command ~~~~~ regexp("(a*)b*","aabaaabb", [], [X,Y]) ~~~~~ Considering only the rules given so far, _X_ and _Y_ could end up with the values `"aabb"` and `"aa"`, `"aaab"` and `"aaa"`, `"ab"` and `"a"`, or any of several other combinations. To resolve this potential ambiguity `regexp` chooses among alternatives using the rule `first then longest`. In other words, it considers the possible matches in order working from left to right across the input string and the pattern, and it attempts to match longer pieces of the input string before shorter ones. More specifically, the following rules apply in decreasing order of priority: + If a regular expression could match two different parts of an input string then it will match the one that begins earliest. + If a regular expression contains "|" operators then the leftmost matching sub-expression is chosen. + In \*, +, and ? constructs, longer matches are chosen in preference to shorter ones. + In sequences of expression components the components are considered from left to right. In the example above, `"(a\*)b\*"` matches `"aab"`: the `"(a\*)"` portion of the pattern is matched first and it consumes the leading `"aa"`; then the `"b\*"` portion of the pattern consumes the next `"b"`. Or, consider the following example: ~~~~~ regexp("(ab|a)(b*)c", "abc", [], [X,Y,Z]) ~~~~~ After this command _X_ will be `"abc"`, _Y_ will be `"ab"`, and _Z_ will be an empty string. Rule 4 specifies that `"(ab|a)"` gets first shot at the input string and Rule 2 specifies that the `"ab"` sub-expression is checked before the `"a"` sub-expression. Thus the `"b"` has already been claimed before the `"(b\*)"` component is checked and `(b\*)` must match an empty string. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/regexp.yap > x mv x /Users/vsc/git/yap-6.3/library/regexp.yap #false cat << "EOF" > tmp /** @pred socket_select(+ _SOCKETS_, - _NEWSTREAMS_, + _TIMEOUT_, + _STREAMS_, - _READSTREAMS_) [unsupported in YAP-6.3] Interface to system call `select`, used for servers to wait for connection requests or for data at sockets. The variable _SOCKETS_ is a list of form _KEY-SOCKET_, where _KEY_ is an user-defined identifier and _SOCKET_ is a socket descriptor. The variable _TIMEOUT_ is either `off`, indicating execution will wait until something is available, or of the form _SEC-USEC_, where _SEC_ and _USEC_ give the seconds and microseconds before socket_select/5 returns. The variable _SOCKETS_ is a list of form _KEY-STREAM_, where _KEY_ is an user-defined identifier and _STREAM_ is a stream descriptor Execution of socket_select/5 unifies _READSTREAMS_ from _STREAMS_ with readable data, and _NEWSTREAMS_ with a list of the form _KEY-STREAM_, where _KEY_ was the key for a socket with pending data, and _STREAM_ the stream descriptor resulting from accepting the connection. */ EOF sed -e "225r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred socket_buffering(+ _SOCKET_, - _MODE_, - _OLD_, + _NEW_) Set buffering for _SOCKET_ in `read` or `write` _MODE_. _OLD_ is unified with the previous status, and _NEW_ receives the new status which may be one of `unbuf` or `fullbuf`. */ EOF sed -e "178r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred socket_listen(+ _SOCKET_, + _LENGTH_) Interface to system call `listen`, used for servers to indicate willingness to wait for connections at socket _SOCKET_. The integer _LENGTH_ gives the queue limit for incoming connections, and should be limited to `5` for portable applications. The socket must be of type `SOCK_STREAM` or `SOCK_SEQPACKET`. */ EOF sed -e "99r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred socket_close(+ _SOCKET_) Close socket _SOCKET_. Note that sockets used in `socket_connect` (that is, client sockets) should not be closed with `socket_close`, as they will be automatically closed when the corresponding stream is closed with close/1 or `close/2`. */ EOF sed -e "99r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred socket_bind(+ _SOCKET_, ? _PORT_) Interface to system call `bind`, as used for servers: bind socket to a port. Port information depends on the domain: + 'AF_UNIX'(+ _FILENAME_) (unsupported) + 'AF_FILE'(+ _FILENAME_) use file name _FILENAME_ for UNIX or local sockets. + 'AF_INET'(? _HOST_,?PORT) If _HOST_ is bound to an atom, bind to host _HOST_, otherwise if unbound bind to local host ( _HOST_ remains unbound). If port _PORT_ is bound to an integer, try to bind to the corresponding port. If variable _PORT_ is unbound allow operating systems to choose a port number, which is unified with _PORT_. */ EOF sed -e "99r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred socket_accept(+ _SOCKET_, - _STREAM_) Accept a connection but do not return client information. */ EOF sed -e "99r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred socket_accept(+ _SOCKET_, - _CLIENT_, - _STREAM_) Interface to system call `accept`, used for servers to wait for connections at socket _SOCKET_. The stream descriptor _STREAM_ represents the resulting connection. If the socket belongs to the domain `AF_INET`, _CLIENT_ unifies with an atom containing the IP address for the client in numbers and dots notation. */ EOF sed -e "99r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred hostname_address(? _HOSTNAME_,? _IP_ADDRESS_) _HOSTNAME_ is an host name and _IP_ADDRESS_ its IP address in number and dots notation. */ EOF sed -e "99r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred current_host(? _HOSTNAME_) Unify _HOSTNAME_ with an atom representing the fully qualified hostname for the current host. Also succeeds if _HOSTNAME_ is bound to the unqualified hostname. */ EOF sed -e "99r tmp" /Users/vsc/git/yap-6.3/library/sockets.yap > x mv x /Users/vsc/git/yap-6.3/library/sockets.yap #false cat << "EOF" > tmp /** @pred splay_split(+ _Key_,? _Val_,+ _Tree_,- _LeftTree_,- _RightTree_) Construct and return two trees _LeftTree_ and _RightTree_, where _LeftTree_ contains all items in _Tree_ less than _Key_, and _RightTree_ contains all items in _Tree_ greater than _Key_. This operations destroys _Tree_. */ EOF sed -e "93r tmp" /Users/vsc/git/yap-6.3/library/splay.yap > x mv x /Users/vsc/git/yap-6.3/library/splay.yap #false cat << "EOF" > tmp /** @pred splay_join(+ _LeftTree_,+ _RighTree_,- _NewTree_) Combine trees _LeftTree_ and _RighTree_ into a single tree _NewTree_ containing all items from both trees. This operation assumes that all items in _LeftTree_ are less than all those in _RighTree_ and destroys both _LeftTree_ and _RighTree_. */ EOF sed -e "93r tmp" /Users/vsc/git/yap-6.3/library/splay.yap > x mv x /Users/vsc/git/yap-6.3/library/splay.yap #false cat << "EOF" > tmp /** @pred splay_insert(+ _Key_,? _Val_,+ _Tree_,- _NewTree_) Insert item _Key_ in tree _Tree_, assuming that it is not there already. The variable _Val_ unifies with a value for key _Key_, and the variable _NewTree_ unifies with the new tree. In our implementation, _Key_ is not inserted if it is already there: rather it is unified with the item already in the tree. */ EOF sed -e "93r tmp" /Users/vsc/git/yap-6.3/library/splay.yap > x mv x /Users/vsc/git/yap-6.3/library/splay.yap #false cat << "EOF" > tmp /** @pred splay_init(- _NewTree_) Initialize a new splay tree. */ EOF sed -e "93r tmp" /Users/vsc/git/yap-6.3/library/splay.yap > x mv x /Users/vsc/git/yap-6.3/library/splay.yap #false cat << "EOF" > tmp /** @pred splay_del(+ _Item_,+ _Tree_,- _NewTree_) Delete item _Key_ from tree _Tree_, assuming that it is present already. The variable _Val_ unifies with a value for key _Key_, and the variable _NewTree_ unifies with the new tree. The predicate will fail if _Key_ is not present. */ EOF sed -e "93r tmp" /Users/vsc/git/yap-6.3/library/splay.yap > x mv x /Users/vsc/git/yap-6.3/library/splay.yap #true cat << "EOF" > tmp /** @pred working_directory(- _Old_,+ _New_) Unify _Old_ with an absolute path to the current working directory and change working directory to _New_. Use the pattern `working_directory(CWD, CWD)` to get the current directory. See also `absolute_file_name/2` and chdir/1. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred tmpnam(- _File_) Interface with _tmpnam_: obtain a new, unique file name _File_. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred tmp_file(+_Base_, - _File_) Create a name for a temporary file. _Base_ is an user provided identifier for the category of file. The _TmpName_ is guaranteed to be unique. If the system halts, it will automatically remove all created temporary files. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred system(+ _Command_,- _Res_) Interface to `system`: execute command _Command_ and unify _Res_ with the result. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred system Start a new default shell and leave YAP in background until the shell completes. YAP uses `/bin/sh` in Unix systems and `COMSPEC` in WIN32. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred sleep(+ _Time_) Block the current thread for _Time_ seconds. When YAP is compiled without multi-threading support, this predicate blocks the YAP process. The number of seconds must be a positive number, and it may an integer or a float. The Unix implementation uses `usleep` if the number of seconds is below one, and `sleep` if it is over a second. The WIN32 implementation uses `Sleep` for both cases. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred shell(+ _Command_,- _Status_) Execute command _Command_ under a new shell and unify _Status_ with the exit for the command. YAP will be in background until the command completes. In Unix environments YAP uses the shell given by the environment variable `SHELL` with the option `" -c "`. In WIN32 environment YAP will use `COMSPEC` if `SHELL` is undefined, in this case with the option `" /c "`. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred shell(+ _Command_) Execute command _Command_ under a new shell. YAP will be in background until the command completes. In Unix environments YAP uses the shell given by the environment variable `SHELL` with the option `" -c "`. In WIN32 environment YAP will use `COMSPEC` if `SHELL` is undefined, in this case with the option `" /c "`. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred shell Start a new shell and leave YAP in background until the shell completes. YAP uses the shell given by the environment variable `SHELL`. In WIN32 environment YAP will use `COMSPEC` if `SHELL` is undefined. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred rename_file(+ _OldFile_,+ _NewFile_) Create file _OldFile_ to _NewFile_. This predicate uses the `C` built-in function `rename`. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred popen(+ _Command_, + _TYPE_, - _Stream_) Interface to the popen function. It opens a process by creating a pipe, forking and invoking _Command_ on the current shell. Since a pipe is by definition unidirectional the _Type_ argument may be `read` or `write`, not both. The stream should be closed using close/1, there is no need for a special `pclose` command. The following example demonstrates the use of popen/3 to process the output of a command, as exec/3 would do: ~~~~~{.prolog} ?- popen(ls,read,X),repeat, get0(X,C), (C = -1, ! ; put(C)). X = 'C:\\cygwin\\home\\administrator' ? ~~~~~ The WIN32 implementation of popen/3 relies on exec/3. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred pid(- _Id_) Unify _Id_ with the process identifier for the current process. An interface to the getpid function. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred mktime(+_Datime_, - _Seconds_) The `mktime/2` procedure receives a term of the form _datime(+ _Year_, + _Month_, + _DayOfTheMonth_, + _Hour_, + _Minute_, + _Second_)_ and returns the number of _Seconds_ elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time (UTC). The user provides information on _Year_, _Month_, _DayOfTheMonth_, _Hour_, _Minute_, and _Second_. The _Hour_ is given on local time. This function uses the WIN32 `GetLocalTime` function or the Unix `mktime` function. ~~~~~ ?- mktime(datime(2001,5,28,15,29,46),X). X = 991081786 ? ; ~~~~~ */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred mktemp( _Spec_,- _File_) Direct interface to `mktemp`: given a _Spec_, that is a file name with six _X_ to it, create a file name _File_. Use tmpnam/1 instead. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred make_directory(+ _Dir_) Create a directory _Dir_. The name of the directory must be an atom. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred host_name(- _Name_) Unify _Name_ with a name for the current host. YAP uses the `hostname` function in Unix systems when available, and the `GetComputerName` function in WIN32 systems. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred host_id(- _Id_) Unify _Id_ with an identifier of the current host. YAP uses the `hostid` function when available, */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred file_property(+ _File_,? _Property_) The atom _File_ corresponds to an existing file, and _Property_ will be unified with a property of this file. The properties are of the form `type( _Type_)`, which gives whether the file is a regular file, a directory, a fifo file, or of unknown type; `size( _Size_)`, with gives the size for a file, and `mod_time( _Time_)`, which gives the last time a file was modified according to some Operating System dependent timestamp; `mode( _mode_)`, gives the permission flags for the file, and `linkto( _FileName_)`, gives the file pointed to by a symbolic link. Properties can be obtained through backtracking: ~~~~~ ?- file_property('Makefile',P). P = type(regular) ? ; P = size(2375) ? ; P = mod_time(990826911) ? ; no ~~~~~ */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred file_exists(+ _File_,+ _Permissions_) The atom _File_ corresponds to an existing file with permissions compatible with _Permissions_. YAP currently only accepts for permissions to be described as a number. The actual meaning of this number is Operating System dependent. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred file_exists(+ _File_) The atom _File_ corresponds to an existing file. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred exec(+ _Command_, _StandardStreams_,- _PID_) Execute command _Command_ with its standard streams connected to the list [_InputStream_, _OutputStream_, _ErrorStream_]. The process that executes the command is returned as _PID_. The command is executed by the default shell `bin/sh -c` in Unix. The following example demonstrates the use of exec/3 to send a command and process its output: ~~~~~ exec(ls,[std,pipe(S),null],P),repeat, get0(S,C), (C = -1, close(S) ! ; put(C)). ~~~~~ The streams may be one of standard stream, `std`, null stream, `null`, or `pipe(S)`, where _S_ is a pipe stream. Note that it is up to the user to close the pipe. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred environ(? _EnvVar_,+ _EnvValue_) Unify environment variable _EnvVar_ with its value _EnvValue_, if there is one. This predicate is backtrackable in Unix systems, but not currently in Win32 configurations. ~~~~~ ?- environ('HOME',X). X = 'C:\\cygwin\\home\\administrator' ? ~~~~~ */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred directory_files(+ _Dir_,+ _List_) Given a directory _Dir_, directory_files/2 procedures a listing of all files and directories in the directory: ~~~~~ ?- directory_files('.',L), writeq(L). ['Makefile.~1~','sys.so','Makefile','sys.o',x,..,'.'] ~~~~~ The predicates uses the `dirent` family of routines in Unix environments, and `findfirst` in WIN32. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred delete_file(+ _File_,+ _Opts_) The `delete_file/2` procedure removes file _File_ according to options _Opts_. These options are `directory` if one should remove directories, `recursive` if one should remove directories recursively, and `ignore` if errors are not to be reported. This example is equivalent to using the delete_file/1 predicate: ~~~~~ ?- delete_file(x, [recursive]). ~~~~~ */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred delete_file(+ _File_) The delete_file/1 procedure removes file _File_. If _File_ is a directory, remove the directory and all its subdirectories. ~~~~~ ?- delete_file(x). ~~~~~ */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred working_directory(- _CurDir_,? _NextDir_) Fetch the current directory at _CurDir_. If _NextDir_ is bound to an atom, make its value the current working directory. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred system(+ _S_) Passes command _S_ to the Bourne shell (on UNIX environments) or the current command interpreter in WIN32 environments. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #false cat << "EOF" > tmp /** @pred environ(+ _E_,- _S_) Given an environment variable _E_ this predicate unifies the second argument _S_ with its value. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/library/system.yap > x mv x /Users/vsc/git/yap-6.3/library/system.yap #true cat << "EOF" > tmp /** @pred variant(? _Term1_, ? _Term2_) Succeed if _Term1_ and _Term2_ are variant terms. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred variables_within_term(+ _Variables_,? _Term_, - _OutputVariables_) Unify _OutputVariables_ with the subset of the variables _Variables_ that occurs in _Term_. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred variable_in_term(? _Term_,? _Var_) Succeed if the second argument _Var_ is a variable and occurs in term _Term_. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred unifiable(? _Term1_, ? _Term2_, - _Bindings_) Succeed if _Term1_ and _Term2_ are unifiable with substitution _Bindings_. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred term_hash(+ _Term_, ? _Hash_) If _Term_ is ground unify _Hash_ with a positive integer calculated from the structure of the term. Otherwise the argument _Hash_ is left unbound. The range of the positive integer is from `0` to, but not including, `33554432`. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred term_hash(+ _Term_, + _Depth_, + _Range_, ? _Hash_) Unify _Hash_ with a positive integer calculated from the structure of the term. The range of the positive integer is from `0` to, but not including, _Range_. If _Depth_ is `-1` the whole term is considered. Otherwise, the term is considered only up to depth `1`, where the constants and the principal functor have depth `1`, and an argument of a term with depth _I_ has depth _I+1_. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred subsumes_chk(? _Term1_, ? _Term2_) Succeed if _Term1_ subsumes _Term2_ but does not bind any variable in _Term1_. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred subsumes(? _Term1_, ? _Term2_) Succeed if _Term1_ subsumes _Term2_. Variables in term _Term1_ are bound so that the two terms become equal. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred new_variables_in_term(+ _Variables_,? _Term_, - _OutputVariables_) Unify _OutputVariables_ with all variables occurring in _Term_ that are not in the list _Variables_. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #true cat << "EOF" > tmp /** @pred term_subsumer(? _T1_, ? _T2_, ? _Subsumer_) Succeed if _Subsumer_ unifies with the least general generalization over _T1_ and _T2_. */ EOF sed -e "130r tmp" /Users/vsc/git/yap-6.3/library/terms.yap > x mv x /Users/vsc/git/yap-6.3/library/terms.yap #false cat << "EOF" > tmp /** @pred tree_to_list(+ _Tree_, - _List_) Is the converse operation to list_to_tree. */ EOF sed -e "84r tmp" /Users/vsc/git/yap-6.3/library/trees.yap > x mv x /Users/vsc/git/yap-6.3/library/trees.yap #false cat << "EOF" > tmp /** @pred tree_size(+ _Tree_, - _Size_) Calculates the number of elements in the _Tree_. */ EOF sed -e "84r tmp" /Users/vsc/git/yap-6.3/library/trees.yap > x mv x /Users/vsc/git/yap-6.3/library/trees.yap #false cat << "EOF" > tmp /** @pred put_label(+ _Index_, + _OldTree_, + _Label_, - _NewTree_) constructs a new tree the same shape as the old which moreover has the same elements except that the _Index_-th one is _Label_. */ EOF sed -e "84r tmp" /Users/vsc/git/yap-6.3/library/trees.yap > x mv x /Users/vsc/git/yap-6.3/library/trees.yap #false cat << "EOF" > tmp /** @pred map_tree(+ _Pred_, + _OldTree_, - _NewTree_) Holds when _OldTree_ and _NewTree_ are binary trees of the same shape and `Pred(Old,New)` is true for corresponding elements of the two trees. */ EOF sed -e "84r tmp" /Users/vsc/git/yap-6.3/library/trees.yap > x mv x /Users/vsc/git/yap-6.3/library/trees.yap #false cat << "EOF" > tmp /** @pred list_to_tree(+ _List_, - _Tree_) Takes a given _List_ of _N_ elements and constructs a binary _Tree_. */ EOF sed -e "84r tmp" /Users/vsc/git/yap-6.3/library/trees.yap > x mv x /Users/vsc/git/yap-6.3/library/trees.yap #false cat << "EOF" > tmp /** @pred trie_usage(+ _Trie_,- _Entries_,- _Nodes_,- _VirtualNodes_) Give statistics on trie _Trie_, the number of entries, _Entries_, and the total number of nodes, _Nodes_, and the number of _VirtualNodes_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_stats(- _Memory_,- _Tries_,- _Entries_,- _Nodes_) Give generic statistics on tries, including the amount of memory, _Memory_, the number of tries, _Tries_, the number of entries, _Entries_, and the total number of nodes, _Nodes_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_save(+ _Trie_,+ _FileName_) Dump trie _Trie_ into file _FileName_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_remove_subtree(+ _Ref_) Remove subtree rooted at handle _Ref_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_remove_entry(+ _Ref_) Remove entry for handle _Ref_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_put_entry(+ _Trie_,+ _Term_,- _Ref_) Add term _Term_ to trie _Trie_. The handle _Ref_ gives a reference to the term. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_print(+ _Trie_) Print trie _Trie_ on standard output. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_open(- _Id_) Open a new trie with identifier _Id_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_mode(? _Mode_) Unify _Mode_ with trie operation mode. Allowed values are either `std` (default) or `rev`. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_max_stats(- _Memory_,- _Tries_,- _Entries_,- _Nodes_) Give maximal statistics on tries, including the amount of memory, _Memory_, the number of tries, _Tries_, the number of entries, _Entries_, and the total number of nodes, _Nodes_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_load(+ _Trie_,+ _FileName_) Load trie _Trie_ from the contents of file _FileName_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_get_entry(+ _Ref_,- _Term_) Unify _Term_ with the entry for handle _Ref_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_close_all Close all available tries. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_close(+ _Id_) Close trie with identifier _Id_. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred trie_check_entry(+ _Trie_,+ _Term_,- _Ref_) Succeeds if a variant of term _Term_ is in trie _Trie_. An handle _Ref_ gives a reference to the term. */ EOF sed -e "149r tmp" /Users/vsc/git/yap-6.3/library/tries.yap > x mv x /Users/vsc/git/yap-6.3/library/tries.yap #false cat << "EOF" > tmp /** @pred vertices(+ _Graph_, - _Vertices_) Unify _Vertices_ with all vertices appearing in graph _Graph_. In the next example: ~~~~~{.prolog} ?- vertices([1-[3,5],2-[4],3-[],4-[5],5-[]], V). L = [1,2,3,4,5] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred transitive_closure(+ _Graph_, + _Closure_) Generate the graph _Closure_ as the transitive closure of graph _Graph_. In the next example: ~~~~~{.prolog} ?- transitive_closure([1-[2,3],2-[4,5],4-[6]],L). L = [1-[2,3,4,5,6],2-[4,5,6],4-[6]] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred top_sort(+ _Graph_, - _Sort_) Generate the set of nodes _Sort_ as a topological sorting of graph _Graph_, if one is possible. In the next example we show how topological sorting works for a linear graph: ~~~~~{.prolog} ?- top_sort([_138-[_219],_219-[_139], _139-[]],L). L = [_138,_219,_139] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred top_sort(+ _Graph_, - _Sort0_, - _Sort_) Generate the difference list _Sort_- _Sort0_ as a topological sorting of graph _Graph_, if one is possible. */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred reachable(+ _Node_, + _Graph_, - _Vertices_) Unify _Vertices_ with the set of all vertices in graph _Graph_ that are reachable from _Node_. In the next example: ~~~~~{.prolog} ?- reachable(1,[1-[3,5],2-[4],3-[],4-[5],5-[]],V). V = [1,3,5] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred neighbours(+ _Vertex_, + _Graph_, - _Vertices_) Unify _Vertices_ with the list of neighbours of vertex _Vertex_ in _Graph_. In the next example: ~~~~~{.prolog} ?- neighbours(4,[1-[3,5],2-[4],3-[], 4-[1,2,7,5],5-[],6-[],7-[],8-[]], NL). NL = [1,2,7,5] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred neighbors(+ _Vertex_, + _Graph_, - _Vertices_) Unify _Vertices_ with the list of neighbors of vertex _Vertex_ in _Graph_. If the vertice is not in the graph fail. In the next example: ~~~~~{.prolog} ?- neighbors(4,[1-[3,5],2-[4],3-[], 4-[1,2,7,5],5-[],6-[],7-[],8-[]], NL). NL = [1,2,7,5] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred edges(+ _Graph_, - _Edges_) Unify _Edges_ with all edges appearing in graph _Graph_. In the next example: ~~~~~{.prolog} ?- vertices([1-[3,5],2-[4],3-[],4-[5],5-[]], V). L = [1,2,3,4,5] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #true cat << "EOF" > tmp /** @pred del_vertices(+ _Graph_, + _Vertices_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by deleting the list of vertices _Vertices_ and all the edges that start from or go to a vertex in _Vertices_ to the graph _Graph_. In the next example: ~~~~~{.prolog} ?- del_vertices([2,1],[1-[3,5],2-[4],3-[], 4-[5],5-[],6-[],7-[2,6],8-[]],NL). NL = [3-[],4-[5],5-[],6-[],7-[6],8-[]] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #true cat << "EOF" > tmp /** @pred del_edges(+ _Graph_, + _Edges_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by removing the list of edges _Edges_ from the graph _Graph_. Notice that no vertices are deleted. In the next example: ~~~~~{.prolog} ?- del_edges([1-[3,5],2-[4],3-[],4-[5],5-[], 6-[],7-[],8-[]], [1-6,2-3,3-2,5-7,3-2,4-5,1-3],NL). NL = [1-[5],2-[4],3-[],4-[],5-[],6-[],7-[],8-[]] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #true cat << "EOF" > tmp /** @pred compose(+ _LeftGraph_, + _RightGraph_, - _NewGraph_) Compose the graphs _LeftGraph_ and _RightGraph_ to form _NewGraph_. In the next example: ~~~~~{.prolog} ?- compose([1-[2],2-[3]],[2-[4],3-[1,2,4]],L). L = [1-[4],2-[1,2,4],3-[]] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred complement(+ _Graph_, - _NewGraph_) Unify _NewGraph_ with the graph complementary to _Graph_. In the next example: ~~~~~{.prolog} ?- complement([1-[3,5],2-[4],3-[], 4-[1,2,7,5],5-[],6-[],7-[],8-[]], NL). NL = [1-[2,4,6,7,8],2-[1,3,5,6,7,8],3-[1,2,4,5,6,7,8], 4-[3,5,6,8],5-[1,2,3,4,6,7,8],6-[1,2,3,4,5,7,8], 7-[1,2,3,4,5,6,8],8-[1,2,3,4,5,6,7]] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #true cat << "EOF" > tmp /** @pred add_vertices(+ _Graph_, + _Vertices_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by adding the list of vertices _Vertices_ to the graph _Graph_. In the next example: ~~~~~{.prolog} ?- add_vertices([1-[3,5],2-[4],3-[],4-[5], 5-[],6-[],7-[],8-[]], [0,2,9,10,11], NG). NG = [0-[],1-[3,5],2-[4],3-[],4-[5],5-[], 6-[],7-[],8-[],9-[],10-[],11-[]] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #true cat << "EOF" > tmp /** @pred add_edges(+ _Graph_, + _Edges_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by adding the list of edges _Edges_ to the graph _Graph_. In the next example: ~~~~~{.prolog} ?- add_edges([1-[3,5],2-[4],3-[],4-[5],5-[],6-[], 7-[],8-[]],[1-6,2-3,3-2,5-7,3-2,4-5],NL). NL = [1-[3,5,6],2-[3,4],3-[2],4-[5],5-[7],6-[],7-[],8-[]] ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred vertices_edges_to_ugraph(+ _Vertices_, + _Edges_, - _Graph_) Given a graph with a set of vertices _Vertices_ and a set of edges _Edges_, _Graph_ must unify with the corresponding s-representation. Note that the vertices without edges will appear in _Vertices_ but not in _Edges_. Moreover, it is sufficient for a vertex to appear in _Edges_. ~~~~~{.prolog} ?- vertices_edges_to_ugraph([],[1-3,2-4,4-5,1-5],L). L = [1-[3,5],2-[4],3-[],4-[5],5-[]] ? ~~~~~ In this case all edges are defined implicitly. The next example shows three unconnected edges: ~~~~~{.prolog} ?- vertices_edges_to_ugraph([6,7,8],[1-3,2-4,4-5,1-5],L). L = [1-[3,5],2-[4],3-[],4-[5],5-[],6-[],7-[],8-[]] ? ~~~~~ */ EOF sed -e "295r tmp" /Users/vsc/git/yap-6.3/library/ugraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/ugraphs.yap #false cat << "EOF" > tmp /** @pred undgraph_neighbours(+ _Vertex_, + _Graph_, - _Vertices_) Unify _Vertices_ with the list of neighbours of vertex _Vertex_ in _Graph_. */ EOF sed -e "6r tmp" /Users/vsc/git/yap-6.3/library/undgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/undgraphs.yap #false cat << "EOF" > tmp /** @pred undgraph_neighbors(+ _Vertex_, + _Graph_, - _Vertices_) Unify _Vertices_ with the list of neighbors of vertex _Vertex_ in _Graph_. If the vertice is not in the graph fail. */ EOF sed -e "6r tmp" /Users/vsc/git/yap-6.3/library/undgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/undgraphs.yap #false cat << "EOF" > tmp /** @pred undgraph_edges(+ _Graph_, - _Edges_) Unify _Edges_ with all edges appearing in graph _Graph_. */ EOF sed -e "6r tmp" /Users/vsc/git/yap-6.3/library/undgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/undgraphs.yap #false cat << "EOF" > tmp /** @pred undgraph_del_vertices(+ _Graph_, + _Vertices_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by deleting the list of vertices _Vertices_ and all the edges that start from or go to a vertex in _Vertices_ to the graph _Graph_. */ EOF sed -e "6r tmp" /Users/vsc/git/yap-6.3/library/undgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/undgraphs.yap #false cat << "EOF" > tmp /** @pred undgraph_del_edges(+ _Graph_, + _Edges_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by removing the list of edges _Edges_ from the graph _Graph_. Notice that no vertices are deleted. */ EOF sed -e "6r tmp" /Users/vsc/git/yap-6.3/library/undgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/undgraphs.yap #false cat << "EOF" > tmp /** @pred undgraph_add_vertices(+ _Graph_, + _Vertices_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by adding the list of vertices _Vertices_ to the graph _Graph_. */ EOF sed -e "6r tmp" /Users/vsc/git/yap-6.3/library/undgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/undgraphs.yap #false cat << "EOF" > tmp /** @pred undgraph_add_edges(+ _Graph_, + _Edges_, - _NewGraph_) Unify _NewGraph_ with a new graph obtained by adding the list of edges _Edges_ to the graph _Graph_. */ EOF sed -e "6r tmp" /Users/vsc/git/yap-6.3/library/undgraphs.yap > x mv x /Users/vsc/git/yap-6.3/library/undgraphs.yap #false cat << "EOF" > tmp /** @pred char_type(? _Char_, ? _Type_) Tests or generates alternative _Types_ or _Chars_. The character-types are inspired by the standard `C` `` primitives. + `alnum` _Char_ is a letter (upper- or lowercase) or digit. + `alpha` _Char_ is a letter (upper- or lowercase). + `csym` _Char_ is a letter (upper- or lowercase), digit or the underscore (_). These are valid C- and Prolog symbol characters. + `csymf` _Char_ is a letter (upper- or lowercase) or the underscore (_). These are valid first characters for C- and Prolog symbols + `ascii` _Char_ is a 7-bits ASCII character (0..127). + `white` _Char_ is a space or tab. E.i. white space inside a line. + `cntrl` _Char_ is an ASCII control-character (0..31). + `digit` _Char_ is a digit. + `digit( _Weight_)` _Char_ is a digit with value _Weight_. I.e. `char_type(X, digit(6))` yields X = aaasaá'6'. Useful for parsing numbers. + `xdigit( _Weight_)` _Char_ is a hexa-decimal digit with value _Weight_. I.e. char_type(a, xdigit(X) yields X = '10'. Useful for parsing numbers. + `graph` _Char_ produces a visible mark on a page when printed. Note that the space is not included! + `lower` _Char_ is a lower-case letter. + `lower(Upper)` _Char_ is a lower-case version of _Upper_. Only true if _Char_ is lowercase and _Upper_ uppercase. + `to_lower(Upper)` _Char_ is a lower-case version of Upper. For non-letters, or letter without case, _Char_ and Lower are the same. See also upcase_atom/2 and downcase_atom/2. + `upper` _Char_ is an upper-case letter. + `upper(Lower)` _Char_ is an upper-case version of Lower. Only true if _Char_ is uppercase and Lower lowercase. + `to_upper(Lower)` _Char_ is an upper-case version of Lower. For non-letters, or letter without case, _Char_ and Lower are the same. See also upcase_atom/2 and downcase_atom/2. + `punct` _Char_ is a punctuation character. This is a graph character that is not a letter or digit. + `space` _Char_ is some form of layout character (tab, vertical-tab, newline, etc.). + `end_of_file` _Char_ is -1. + `end_of_line` _Char_ ends a line (ASCII: 10..13). + `newline` _Char_ is a the newline character (10). + `period` _Char_ counts as the end of a sentence (.,!,?). + `quote` _Char_ is a quote-character. + `paren(Close)` _Char_ is an open-parenthesis and Close is the corresponding close-parenthesis. + `code_type(? _Code_, ? _Type_)` As char_type/2, but uses character-codes rather than one-character atoms. Please note that both predicates are as flexible as possible. They handle either representation if the argument is instantiated and only will instantiate with an integer code or one-character atom depending of the version used. See also the prolog-flag double_quotes and the built-in predicates atom_chars/2 and atom_codes/2. */ EOF sed -e "459r tmp" /Users/vsc/git/yap-6.3/os/pl-ctype.c > x mv x /Users/vsc/git/yap-6.3/os/pl-ctype.c #false cat << "EOF" > tmp /** @pred write_canonical(+ _S_,+ _T_) is iso Displays term _T_ on the stream _S_. Atoms are quoted when necessary, and operators are ignored. */ EOF sed -e "5891r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred print(+ _S_, _T_) Prints term _T_ to the stream _S_ instead of to the current output stream. */ EOF sed -e "5890r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred writeq(+ _S_, _T_) is iso As writeq/1, but the output is sent to the stream _S_. */ EOF sed -e "5889r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred write(+ _S_, _T_) is iso Writes term _T_ to stream _S_ instead of to the current output stream. */ EOF sed -e "5888r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred nl(+ _S_) is iso Outputs a new line to stream _S_. */ EOF sed -e "5885r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred writeln( _T_) is iso Same as write/1 followed by nl/0. */ EOF sed -e "5884r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred print( _T_) Prints the term _T_ to the current output stream using write/1 unless T is bound and a call to the user-defined predicate `portray/1` succeeds. To do pretty printing of terms the user should define suitable clauses for `portray/1` and use print/1. */ EOF sed -e "5883r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred writeq( _T_) is iso Writes the term _T_, quoting names to make the result acceptable to the predicate `read` whenever necessary. */ EOF sed -e "5882r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred write( _T_) is iso The term _T_ is written to the current output stream according to the operator declarations in force. */ EOF sed -e "5881r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred write_term(+ _S_, + _T_, + _Opts_) is iso Displays term _T_ on the current output stream, according to the same options used by `write_term/3`. */ EOF sed -e "5880r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred write_term(+ _T_, + _Opts_) is iso Displays term _T_ on the current output stream, according to the following options: + quoted(+ _Bool_) is iso If `true`, quote atoms if this would be necessary for the atom to be recognized as an atom by YAP's parser. The default value is `false`. + ignore_ops(+ _Bool_) is iso If `true`, ignore operator declarations when writing the term. The default value is `false`. + numbervars(+ _Bool_) is iso If `true`, output terms of the form `$VAR(N)`, where _N_ is an integer, as a sequence of capital letters. The default value is `false`. + portrayed(+ _Bool_) If `true`, use portray/1 to portray bound terms. The default value is `false`. + portray(+ _Bool_) If `true`, use portray/1 to portray bound terms. The default value is `false`. + max_depth(+ _Depth_) If `Depth` is a positive integer, use Depth as the maximum depth to portray a term. The default is `0`, that is, unlimited depth. + priority(+ _Piority_) If `Priority` is a positive integer smaller than `1200`, give the context priority. The default is `1200`. + cycles(+ _Bool_) Do not loop in rational trees (default). */ EOF sed -e "5879r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred write_canonical(+ _T_) is iso Displays term _T_ on the current output stream. Atoms are quoted when necessary, and operators are ignored, that is, the term is written in standard parenthesized prefix notation. */ EOF sed -e "5878r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred nl is iso Outputs a new line to the current output stream. */ EOF sed -e "5877r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get0(- _C_) The next character from the current input stream is consumed, and then unified with _C_. There are no restrictions on the possible values of the ASCII code for the character, but the character will be internally converted by YAP. */ EOF sed -e "5755r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get0(+ _S_,- _C_) The same as `get0(C)`, but from stream _S_. */ EOF sed -e "5754r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred put_char(+ _N_) is iso Outputs to the current output stream the character who is used to build the representation of atom `A`. The current output stream must be a text stream. */ EOF sed -e "5731r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred put_char(+ _S_,+ _A_) is iso As `put_char(A)`, but to text stream _S_. */ EOF sed -e "5730r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred peek_char(- _C_) is iso If _C_ is unbound, or is an atom representation of a character, and the current stream is a text stream, read the next character from the current stream and unify its atom representation with _C_, while leaving the current stream position unaltered. */ EOF sed -e "5445r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred peek_char(+ _S_,- _C_) is iso If _C_ is unbound, or is an atom representation of a character, and the stream _S_ is a text stream, read the next character from that stream and unify its representation as an atom with _C_, while leaving the current stream position unaltered. */ EOF sed -e "5429r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred peek_code(- _C_) is iso If _C_ is unbound, or is the code for a character, and the current stream is a text stream, read the next character from the current stream and unify its code with _C_, while leaving the current stream position unaltered. */ EOF sed -e "5413r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred peek_code(+ _S_,- _C_) is iso If _C_ is unbound, or is an atom representation of a character, and the stream _S_ is a text stream, read the next character from that stream and unify its representation as an atom with _C_, while leaving the current stream position unaltered. */ EOF sed -e "5397r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred peek_byte(- _C_) is iso If _C_ is unbound, or is a character code, and the current stream is a binary stream, read the next byte from the current stream and unify its code with _C_, while leaving the current stream position unaltered. */ EOF sed -e "5381r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred peek_byte(+ _S_,- _C_) is iso If _C_ is unbound, or is a character code, and _S_ is a binary stream, read the next byte from the current stream and unify its code with _C_, while leaving the current stream position unaltered. */ EOF sed -e "5365r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred at_end_of_stream is iso Succeed if the current stream has stream position end-of-stream or past-end-of-stream. */ EOF sed -e "5309r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred at_end_of_stream(+ _S_) is iso Succeed if the stream _S_ has stream position end-of-stream or past-end-of-stream. Note that _S_ must be a readable stream. */ EOF sed -e "5295r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred line_position(+ _Stream_,- _LinePosition_) Unify _LinePosition_ with the position on current text stream _Stream_. */ EOF sed -e "5236r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred line_count(+ _Stream_,- _LineNumber_) Unify _LineNumber_ with the line number for the _Stream_. */ EOF sed -e "5212r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred character_count(+ _Stream_,- _CharacterCount_) Unify _CharacterCount_ with the number of characters written to or read to _Stream_. */ EOF sed -e "5189r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred current_output(- _S_) is iso Unify _S_ with the current output stream. */ EOF sed -e "5150r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred current_input(- _S_) is iso Unify _S_ with the current input stream. */ EOF sed -e "5136r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred set_output(+ _S_) is iso Set stream _S_ as the current output stream. Predicates like write/1 and put/1 will start using stream _S_. */ EOF sed -e "5114r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred set_input(+ _S_) is iso Set stream _S_ as the current input stream. Predicates like read/1 and get/1 will start using stream _S_. */ EOF sed -e "5091r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred set_stream_position(+ _S_, + _POS_) is iso Given a stream position _POS_ for a stream _S_, set the current stream position for _S_ to be _POS_. */ EOF sed -e "4985r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred flush_output(+ _S_) is iso Send all data in the output buffer for stream _S_. */ EOF sed -e "4915r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred flush_output is iso Send out all data in the output buffer of the current output stream. */ EOF sed -e "4902r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred is_stream( _S_) Succeeds if _S_ is a currently open stream. */ EOF sed -e "4857r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred stream_property(? _Stream_,? _Prop_) is iso Obtain the properties for the open streams. If the first argument is unbound, the procedure will backtrack through all open streams. Otherwise, the first argument must be a stream term (you may use `current_stream` to obtain a current stream given a file name). The following properties are recognized: + file_name( _P_) An atom giving the file name for the current stream. The file names are user_input, user_output, and user_error for the standard streams. + mode( _P_) The mode used to open the file. It may be one of `append`, `read`, or `write`. + input The stream is readable. + output The stream is writable. + alias( _A_) ISO-Prolog primitive for stream aliases. YAP returns one of the existing aliases for the stream. + position( _P_) A term describing the position in the stream. + end_of_stream( _E_) Whether the stream is `at` the end of stream, or it has found the end of stream and is `past`, or whether it has `not` yet reached the end of stream. + eof_action( _A_) The action to take when trying to read after reaching the end of stream. The action may be one of `error`, generate an error, `eof_code`, return character code `-1`, or `reset` the stream. + reposition( _B_) Whether the stream can be repositioned or not, that is, whether it is seekable. + type( _T_) Whether the stream is a `text` stream or a `binary` stream. + bom(+ _Bool_) If present and `true`, a BOM (Byte Order Mark) was detected while opening the file for reading or a BOM was written while opening the stream. See BOM for details. + encoding(+ _Encoding_) Query the encoding used for text. See Encoding for an overview of wide character and encoding issues in YAP. + representation_errors(+ _Mode_) Behaviour when writing characters to the stream that cannot be represented by the encoding. The behaviour is one of `error` (throw and Input/Output error exception), `prolog` (write `\u...\` escape code or `xml` (write `\&#...;` XML character entity). The initial mode is `prolog` for the user streams and `error` for all other streams. See also Encoding and `open/4`. + current_line_number(- _LineNumber_) Unify _LineNumber_ with the line number for the current stream. */ EOF sed -e "4644r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred close(+ _S_,+ _O_) is iso Closes the stream _S_, following options _O_. The only valid options are `force(true)` and `force(false)`. YAP currently ignores these options. */ EOF sed -e "4164r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred close(+ _S_) is iso Closes the stream _S_. If _S_ does not stand for a stream currently opened an error is reported. The streams user_input, user_output, and user_error can never be closed. */ EOF sed -e "4141r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred told Closes the current output stream, and the user's terminal becomes again the current output stream. It is important to remember to close streams after having finished using them, as the maximum number of simultaneously opened streams is 17. */ EOF sed -e "3984r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred telling(- _S_) The current output stream is unified with _S_. */ EOF sed -e "3964r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred tell(+ _S_) If _S_ is a currently opened stream for output, it becomes the current output stream. If _S_ is an atom it is taken to be a filename. If there is no output stream currently associated with it, then it is opened for output, and the new output stream created becomes the current output stream. If it is not possible to open the file, an error occurs. If there is a single opened output stream currently associated with the file, then it becomes the current output stream; if there are more than one in that condition, one of them is chosen. Whenever _S_ is a stream not currently opened for output, an error may be reported, depending on the state of the file_errors flag. The predicate just fails, if _S_ is neither a stream nor an atom. */ EOF sed -e "3947r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred seeing(- _S_) The current input stream is unified with _S_. */ EOF sed -e "3875r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred seen Closes the current input stream (see 6.7.). */ EOF sed -e "3862r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred see(+ _S_) If _S_ is a currently opened input stream then it is assumed to be the current input stream. If _S_ is an atom it is taken as a filename. If there is no input stream currently associated with it, then it is opened for input, and the new input stream thus created becomes the current input stream. If it is not possible to open the file, an error occurs. If there is a single opened input stream currently associated with the file, it becomes the current input stream; if there are more than one in that condition, then one of them is chosen. When _S_ is a stream not currently opened for input, an error may be reported, depending on the state of the `file_errors` flag. If _S_ is neither a stream nor an atom the predicates just fails. */ EOF sed -e "3850r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred open(+ _F_,+ _M_,- _S_) is iso Opens the file with name _F_ in mode _M_ (`read`, `write` or `append`), returning _S_ unified with the stream name. At most, there are 17 streams opened at the same time. Each stream is either an input or an output stream but not both. There are always 3 open streams: user_input for reading, user_output for writing and user_error for writing. If there is no ambiguity, the atoms user_input and user_output may be referred to as `user`. The `file_errors` flag controls whether errors are reported when in mode `read` or `append` the file _F_ does not exist or is not readable, and whether in mode `write` or `append` the file is not writable. */ EOF sed -e "3732r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred open(+ _F_,+ _M_,- _S_,+ _Opts_) is iso Opens the file with name _F_ in mode _M_ (`read`, `write` or `append`), returning _S_ unified with the stream name, and following these options: + `type(+ _T_)` is iso Specify whether the stream is a `text` stream (default), or a `binary` stream. + `reposition(+ _Bool_)` is iso Specify whether it is possible to reposition the stream (`true`), or not (`false`). By default, YAP enables repositioning for all files, except terminal files and sockets. + `eof(+ _Action_)` is iso Specify the action to take if attempting to input characters from a stream where we have previously found an `end_of_file`. The possible actions are `error`, that raises an error, `reset`, that tries to reset the stream and is used for `tty` type files, and `eof_code`, which generates a new `end_of_file` (default for non-tty files). + `alias(+ _Name_)` is iso Specify an alias to the stream. The alias Name must be an atom. The alias can be used instead of the stream descriptor for every operation concerning the stream. The operation will fail and give an error if the alias name is already in use. YAP allows several aliases for the same file, but only one is returned by stream_property/2 + `bom(+ _Bool_)` If present and `true`, a BOM (Byte Order Mark) was detected while opening the file for reading or a BOM was written while opening the stream. See BOM for details. + `encoding(+ _Encoding_)` Set the encoding used for text. See Encoding for an overview of wide character and encoding issues. + `representation_errors(+ _Mode_)` Change the behaviour when writing characters to the stream that cannot be represented by the encoding. The behaviour is one of `error` (throw and Input/Output error exception), `prolog` (write `\u...\` escape code or `xml` (write `\&#...;` XML character entity). The initial mode is `prolog` for the user streams and `error` for all other streams. See also Encoding. + `expand_filename(+ _Mode_)` If _Mode_ is `true` then do filename expansion, then ask Prolog to do file name expansion before actually trying to opening the file: this includes processing `~` characters and processing `$` environment variables at the beginning of the file. Otherwise, just try to open the file using the given name. The default behavior is given by the Prolog flag open_expands_filename. */ EOF sed -e "3703r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred tab(+ _N_) Outputs _N_ spaces to the current output stream. */ EOF sed -e "3300r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred tab(+ _S_,+ _N_) The same as tab/1, but using stream _S_. */ EOF sed -e "3286r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred prompt(- _A_,+ _B_) Changes YAP input prompt from _A_ to _B_. */ EOF sed -e "3189r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get_char(- _C_) is iso If _C_ is unbound, or is an atom representation of a character, and the current stream is a text stream, read the next character from the current stream and unify its atom representation with _C_. */ EOF sed -e "3112r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get_char(+ _S_,- _C_) is iso If _C_ is unbound, or is an atom representation of a character, and the stream _S_ is a text stream, read the next character from that stream and unify its representation as an atom with _C_. */ EOF sed -e "3096r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get_code(- _C_) is iso If _C_ is unbound, or is the code for a character, and the current stream is a text stream, read the next character from the current stream and unify its code with _C_. */ EOF sed -e "3060r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get_code(+ _S_,- _C_) is iso If _C_ is unbound, or is a character code, and the stream _S_ is a text stream, read the next character from that stream and unify its code with _C_. */ EOF sed -e "3044r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get_byte(- _C_) is iso If _C_ is unbound, or is a character code, and the current stream is a binary stream, read the next byte from the current stream and unify its code with _C_. */ EOF sed -e "3002r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get_byte(+ _S_,- _C_) is iso If _C_ is unbound, or is a character code, and the stream _S_ is a binary stream, read the next byte from that stream and unify its code with _C_. */ EOF sed -e "2985r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred skip(+ _S_,- _C_) Like skip/1, but using stream _S_ instead of the current input stream. */ EOF sed -e "2917r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred skip(+ _N_) Skips input characters until the next occurrence of the character with ASCII code _N_. The argument to this predicate can take the same forms as those for `put` (see 6.11). */ EOF sed -e "2902r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get(+ _S_,- _C_) The same as `get(C)`, but from stream _S_. */ EOF sed -e "2867r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred get(- _C_) The next non-blank character from the current input stream is unified with _C_. Blank characters are the ones whose ASCII codes are not greater than 32. If there are no more non-blank characters in the stream, _C_ is unified with -1. If `end_of_stream` has already been reached in the previous reading, this call will give an error message. */ EOF sed -e "2853r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred put(+ _N_) Outputs to the current output stream the character whose ASCII code is _N_. The character _N_ must be a legal ASCII character code, an expression yielding such a code, or a list in which case only the first element is used. */ EOF sed -e "2808r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred put(+ _S_,+ _N_) As `put(N)`, but to stream _S_. */ EOF sed -e "2790r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred put_code(+ _N_) is iso Outputs to the current output stream the character whose ASCII code is _N_. The current output stream must be a text stream. The character _N_ must be a legal ASCII character code, an expression yielding such a code, or a list in which case only the first element is used. */ EOF sed -e "2776r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred put_code(+ _S_,+ _N_) is iso As `put_code(N)`, but to text stream _S_. */ EOF sed -e "2749r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred put_byte(+ _N_) is iso Outputs to the current output stream the character whose code is _N_. The current output stream must be a binary stream. */ EOF sed -e "2713r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred put_byte(+ _S_,+ _N_) is iso As `put_byte(N)`, but to binary stream _S_. */ EOF sed -e "2699r tmp" /Users/vsc/git/yap-6.3/os/pl-file.c > x mv x /Users/vsc/git/yap-6.3/os/pl-file.c #false cat << "EOF" > tmp /** @pred file_name_extension(? _Base_,? _Extension_, ? _Name_) This predicate is used to add, remove or test filename extensions. The main reason for its introduction is to deal with different filename properties in a portable manner. If the file system is case-insensitive, testing for an extension will be done case-insensitive too. _Extension_ may be specified with or without a leading dot (.). If an _Extension_ is generated, it will not have a leading dot. */ EOF sed -e "1231r tmp" /Users/vsc/git/yap-6.3/os/pl-files.c > x mv x /Users/vsc/git/yap-6.3/os/pl-files.c #false cat << "EOF" > tmp /** @pred file_base_name(+ _Name_,- _FileName_) Give the path a full path _FullPath_ extract the _FileName_. */ EOF sed -e "967r tmp" /Users/vsc/git/yap-6.3/os/pl-files.c > x mv x /Users/vsc/git/yap-6.3/os/pl-files.c #false cat << "EOF" > tmp /** @pred access_file(+ _F_,+ _M_) Is the file accessible? */ EOF sed -e "838r tmp" /Users/vsc/git/yap-6.3/os/pl-files.c > x mv x /Users/vsc/git/yap-6.3/os/pl-files.c #false cat << "EOF" > tmp /** @pred atom_to_term(+ _Atom_, - _Term_, - _Bindings_) Use _Atom_ as input to read_term/2 using the option `variable_names` and return the read term in _Term_ and the variable bindings in _Bindings_. _Bindings_ is a list of `Name = Var` couples, thus providing access to the actual variable names. See also read_term/2. If Atom has no valid syntax, a syntax_error exception is raised. */ EOF sed -e "1563r tmp" /Users/vsc/git/yap-6.3/os/pl-read.c > x mv x /Users/vsc/git/yap-6.3/os/pl-read.c #false cat << "EOF" > tmp /** @pred read_term(- _T_,+ _Options_) is iso Reads term _T_ from the current input stream with execution controlled by the following options: + term_position(- _Position_) Unify _Position_ with a term describing the position of the stream at the start of parse. Use stream_position_data/3 to obtain extra information. + singletons(- _Names_) Unify _Names_ with a list of the form _Name=Var_, where _Name_ is the name of a non-anonymous singleton variable in the original term, and `Var` is the variable's representation in YAP. The variables occur in left-to-right traversal order. + syntax_errors(+ _Val_) Control action to be taken after syntax errors. See yap_flag/2 for detailed information. + variables(- _Names_) Unify _Names_ with a list of the form _Name=Var_, where _Name_ is the name of a non-anonymous variable in the original term, and _Var_ is the variable's representation in YAP. The variables occur in left-to-right traversal order. */ EOF sed -e "1448r tmp" /Users/vsc/git/yap-6.3/os/pl-read.c > x mv x /Users/vsc/git/yap-6.3/os/pl-read.c #false cat << "EOF" > tmp /** @pred read_term(+ _S_,- _T_,+ _Options_) is iso Reads term _T_ from stream _S_ with execution controlled by the same options as read_term/2. */ EOF sed -e "1380r tmp" /Users/vsc/git/yap-6.3/os/pl-read.c > x mv x /Users/vsc/git/yap-6.3/os/pl-read.c #false cat << "EOF" > tmp /** @pred mtbdd_new(? _Exp_, - _BddHandle_) create a new algebraic decision diagram (ADD) from the logical expression _Exp_. The expression may include: + Logical Variables: a leaf-node can be a logical variable, or parameter. + Number a leaf-node can also be any number + _X_ \* _Y_ product + _X_ + _Y_ sum + _X_ - _Y_ subtraction + or( _X_, _Y_), _X_ \/ _Y_ logical or */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_tree(+ _BDDHandle_, _Term_) Convert the BDD or ADD represented by _BDDHandle_ to a Prolog term of the form `bdd( _Dir_, _Nodes_, _Vars_)` or `mtbdd( _Nodes_, _Vars_)`, respectively. The arguments are: + _Dir_ direction of the BDD, usually 1 + _Nodes_ list of nodes in the BDD or ADD. In a BDD nodes may be pp (both terminals are positive) or pn (right-hand-side is negative), and have four arguments: a logical variable that will be bound to the value of the node, the logical variable corresponding to the node, a logical variable, a 0 or a 1 with the value of the left-hand side, and a logical variable, a 0 or a 1 with the right-hand side. + _Vars_ are the free variables in the original BDD, or the parameters of the BDD/ADD. As an example, the BDD for the expression `X+(Y+X)\*(-Z)` becomes: ~~~~~ bdd(1,[pn(N2,X,1,N1),pp(N1,Y,N0,1),pn(N0,Z,1,1)],vs(X,Y,Z)) ~~~~~ */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_to_probability_sum_product(+ _BDDHandle_, - _Probs_, - _Prob_) Each node in a BDD is given a probability _Pi_. The total probability of a corresponding sum-product network is _Prob_, and the probabilities of the inner nodes are _Probs_. In Prolog, this predicate would correspond to computing the value of a BDD. The input variables will be bound to probabilities, eg `[ _X_, _Y_, _Z_] = [0.3.0.7,0.1]`, and the previous `eval_bdd` would operate over real numbers: ~~~~~ Tree = bdd(1, T, _Vs), reverse(T, RT), foldl(eval_prob, RT, _, V). eval_prob(pp(P,X,L,R), _, P) :- P is X * L + (1-X) * R. eval_prob(pn(P,X,L,R), _, P) :- P is X * L + (1-X) * (1-R). ~~~~~ */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_to_probability_sum_product(+ _BDDHandle_, - _Prob_) Each node in a BDD is given a probability _Pi_. The total probability of a corresponding sum-product network is _Prob_. */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_size(+ _BDDHandle_, - _Size_) Unify _Size_ with the number of nodes in _BDDHandle_. */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_print(+ _BDDHandle_, + _File_) Output bdd _BDDHandle_ as a dot file to _File_. */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_new(? _Exp_, - _BddHandle_) create a new BDD from the logical expression _Exp_. The expression may include: + Logical Variables: a leaf-node can be a logical variable. + Constants 0 and 1 a leaf-node can also be one of these two constants. + or( _X_, _Y_), _X_ \/ _Y_, _X_ + _Y_ disjunction + and( _X_, _Y_), _X_ /\ _Y_, _X_ \* _Y_ conjunction + nand( _X_, _Y_) negated conjunction@ + nor( _X_, _Y_) negated disjunction + xor( _X_, _Y_) exclusive or + not( _X_), - _X_ negation */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_from_list(? _List_, ?_Vars_, - _BddHandle_) Convert a _List_ of logical expressions of the form above, that includes the set of free variables _Vars_, into a BDD accessible through _BddHandle_. */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_eval(+ _BDDHandle_, _Val_) Unify _Val_ with the value of the logical expression compiled in _BDDHandle_ given an assignment to its variables. ~~~~~ bdd_new(X+(Y+X)*(-Z), BDD), [X,Y,Z] = [0,0,0], bdd_eval(BDD, V), writeln(V). ~~~~~ would write 0 in the standard output stream. The Prolog code equivalent to bdd_eval/2 is: ~~~~~ Tree = bdd(1, T, _Vs), reverse(T, RT), foldl(eval_bdd, RT, _, V). eval_bdd(pp(P,X,L,R), _, P) :- P is ( X/\L ) \/ ( (1-X) /\ R ). eval_bdd(pn(P,X,L,R), _, P) :- P is ( X/\L ) \/ ( (1-X) /\ (1-R) ). ~~~~~ First, the nodes are reversed to implement bottom-up evaluation. Then, we use the `foldl` list manipulation predicate to walk every node, computing the disjunction of the two cases and binding the output variable. The top node gives the full expression value. Notice that `(1- _X_)` implements negation. */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #false cat << "EOF" > tmp /** @pred bdd_close( _BDDHandle_) close the BDD and release any resources it holds. */ EOF sed -e "20r tmp" /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap > x mv x /Users/vsc/git/yap-6.3/packages/bdd/bdd.yap #true cat << "EOF" > tmp /** @pred chr_show_store(+ _Mod_) Prints all suspended constraints of module _Mod_ to the standard output. This predicate is automatically called by the SWI-Prolog toplevel at the end of each query for every CHR module currently loaded. The prolog-flag `chr_toplevel_show_store` controls whether the toplevel shows the constraint stores. The value `true` enables it. Any other value disables it. */ EOF sed -e "35r tmp" /Users/vsc/git/yap-6.3/packages/chr/chr_debug.pl > x mv x /Users/vsc/git/yap-6.3/packages/chr/chr_debug.pl #true cat << "EOF" > tmp /** @pred chr_notrace De-activate the CHR tracer. By default the CHR tracer is activated and deactivated automatically by the Prolog predicates trace/0 and notrace/0. + chr_leash/0 Define the set of CHR ports on which the CHR tracer asks for user intervention (i.e. stops). _Spec_ is either a list of ports or a predefined `alias`. Defined aliases are: `full` to stop at all ports, `none` or `off` to never stop, and `default` to stop at the `call`, `exit`, `fail`, `wake` and `apply` ports. See also leash/1. */ EOF sed -e "74r tmp" /Users/vsc/git/yap-6.3/packages/chr/chr_runtime.pl > x mv x /Users/vsc/git/yap-6.3/packages/chr/chr_runtime.pl #true cat << "EOF" > tmp /** @pred wait(+ _PID_,- _Status_) Wait until process _PID_ terminates, and return its exits _Status_. */ EOF sed -e "30r tmp" /Users/vsc/git/yap-6.3/packages/clib/unix.pl > x mv x /Users/vsc/git/yap-6.3/packages/clib/unix.pl #true cat << "EOF" > tmp /** @pred kill( _Id_,+ _SIGNAL_) Send signal _SIGNAL_ to process _Id_. In Unix this predicate is a direct interface to `kill` so one can send signals to groups of processes. In WIN32 the predicate is an interface to `TerminateProcess`, so it kills _Id_ independently of _SIGNAL_. */ EOF sed -e "30r tmp" /Users/vsc/git/yap-6.3/packages/clib/unix.pl > x mv x /Users/vsc/git/yap-6.3/packages/clib/unix.pl #true cat << "EOF" > tmp /** @pred minimize(V) minimise variable _V_ */ EOF sed -e "108r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl #true cat << "EOF" > tmp /** @pred maximize( _V_) maximise variable _V_ */ EOF sed -e "108r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl #true cat << "EOF" > tmp /** @pred inf(+ _Expression_,- _Sup_) Computes the supremum of _Expression_ within the current state of the constraint store and returns that supremum in _Sup_. This predicate does not change the constraint store. */ EOF sed -e "108r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl #true cat << "EOF" > tmp /** @pred inf(+ _Expression_,- _Inf_) Computes the infimum of _Expression_ within the current state of the constraint store and returns that infimum in _Inf_. This predicate does not change the constraint store. */ EOF sed -e "108r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl #true cat << "EOF" > tmp /** @pred entailed(+ _Constraint_) Succeeds if _Constraint_ is necessarily true within the current constraint store. This means that adding the negation of the constraint to the store results in failure. */ EOF sed -e "108r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl #true cat << "EOF" > tmp /** @pred dump(+ _Target_,+ _Newvars_,- _CodedAnswer_) Returns the constraints on _Target_ in the list _CodedAnswer_ where all variables of _Target_ have veen replaced by _NewVars_. This operation does not change the constraint store. E.g. in ~~~~~ dump([X,Y,Z],[x,y,z],Cons) ~~~~~ _Cons_ will contain the constraints on _X_, _Y_ and _Z_ where these variables have been replaced by atoms `x`, `y` and `z`. */ EOF sed -e "108r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl #true cat << "EOF" > tmp /** @pred bb_inf(+ _Ints_,+ _Expression_,- _Inf_,- _Vertext_,+ _Eps_) Computes the infimum of _Expression_ within the current constraint store, with the additional constraint that in that infimum, all variables in _Ints_ have integral values. _Vertex_ will contain the values of _Ints_ in the infimum. _Eps_ denotes how much a value may differ from an integer to be considered an integer. E.g. when _Eps_ = 0.001, then X = 4.999 will be considered as an integer (5 in this case). _Eps_ should be between 0 and 0.5. */ EOF sed -e "108r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl #true cat << "EOF" > tmp /** @pred bb_inf(+ _Ints_,+ _Expression_,- _Inf_) The same as bb_inf/5 but without returning the values of the integers and with an eps of 0.001. */ EOF sed -e "108r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr.pl #true cat << "EOF" > tmp /** @pred split(+ _Line_,+ _Separators_,- _Split_) Unify _Words_ with a set of strings obtained from _Line_ by using the character codes in _Separators_ as separators. As an example, consider: ~~~~~{.prolog} ?- split("Hello * I am free"," *",S). S = ["Hello","I","am","free"] ? no ~~~~~ */ EOF sed -e "59r tmp" /Users/vsc/git/yap-6.3/packages/clpqr/clpr/nf_r.pl > x mv x /Users/vsc/git/yap-6.3/packages/clpqr/clpr/nf_r.pl #true cat << "EOF" > tmp /** @pred minimum( _X_, _Vs_) */ EOF sed -e "30r tmp" /Users/vsc/git/yap-6.3/packages/gecode/clpfd.yap > x mv x /Users/vsc/git/yap-6.3/packages/gecode/clpfd.yap #false cat << "EOF" > tmp /** @pred maximum( _X_, _Vs_) */ EOF sed -e "30r tmp" /Users/vsc/git/yap-6.3/packages/gecode/clpfd.yap > x mv x /Users/vsc/git/yap-6.3/packages/gecode/clpfd.yap #false cat << "EOF" > tmp /** @pred element( _X_, _Vs_ ) _X_ is an element of list _Vs_ */ EOF sed -e "30r tmp" /Users/vsc/git/yap-6.3/packages/gecode/clpfd.yap > x mv x /Users/vsc/git/yap-6.3/packages/gecode/clpfd.yap #false cat << "EOF" > tmp /** @pred clause( _Type_, _Ps_ , _Ns_, _V_ ) If _Type_ is `and` it is the conjunction of boolean variables _Ps_ and the negation of boolean variables _Ns_ and must have result _V_. If _Type_ is `or` it is a disjunction. + DFA the interface allows creating and manipulation deterministic finite automata. A DFA has a set of states, represented as integers and is initialised with an initial state, a set of transitions from the first to the last argument emitting the middle argument, and a final state. The swedish-drinkers protocol is represented as follows: ~~~~~{.prolog} A = [X,Y,Z], dfa( 0, [t(0,0,0),t(0,1,1),t(1,0,0),t(-1,0,0)], [0], C), in_dfa( A, C ), ~~~~~ This code will enumeratae the valid tuples of three emissions. + extensional constraints Constraints can also be represented as lists of tuples. The previous example would be written as: ~~~~~{.prolog} extensional_constraint([[0,0,0],[0,1,0],[1,0,0]], C), in_relation( A, C ), ~~~~~ */ EOF sed -e "30r tmp" /Users/vsc/git/yap-6.3/packages/gecode/clpfd.yap > x mv x /Users/vsc/git/yap-6.3/packages/gecode/clpfd.yap #true cat << "EOF" > tmp /** @pred primitive( _T_) Checks whether _T_ is an atomic term or a database reference. */ EOF sed -e "234r tmp" /Users/vsc/git/yap-6.3/packages/http/js_grammar.pl > x mv x /Users/vsc/git/yap-6.3/packages/http/js_grammar.pl #true cat << "EOF" > tmp /** @pred _Term1_ =@= _Term2_ is semidet True iff _Term1_ and _Term2_ are structurally equivalent. I.e. if _Term1_ and _Term2_ are variants of each other. */ EOF sed -e "43r tmp" /Users/vsc/git/yap-6.3/packages/plunit/swi.pl > x mv x /Users/vsc/git/yap-6.3/packages/plunit/swi.pl #true cat << "EOF" > tmp /** @pred is_list(+ _List_) True when _List_ is a proper list. That is, _List_ is bound to the empty list (nil) or a term with functor '.' and arity 2. */ EOF sed -e "83r tmp" /Users/vsc/git/yap-6.3/packages/xml/xml.lpa.pl > x mv x /Users/vsc/git/yap-6.3/packages/xml/xml.lpa.pl #true cat << "EOF" > tmp /** @pred number_codes(? _A_,? _L_) is iso The predicate holds when at least one of the arguments is ground (otherwise, an error message will be displayed). The argument _A_ will be unified with a number and _L_ with the list of the ASCII codes for the characters of the external representation of _A_. */ EOF sed -e "51r tmp" /Users/vsc/git/yap-6.3/packages/xml/xml.lpa.pl > x mv x /Users/vsc/git/yap-6.3/packages/xml/xml.lpa.pl #true cat << "EOF" > tmp /** @pred atom_codes(? _A_,? _L_) is iso The predicate holds when at least one of the arguments is ground (otherwise, an error message will be displayed). The argument _A_ will be unified with an atom and _L_ with the list of the ASCII codes for the characters of the external representation of _A_. */ EOF sed -e "38r tmp" /Users/vsc/git/yap-6.3/packages/xml/xml.lpa.pl > x mv x /Users/vsc/git/yap-6.3/packages/xml/xml.lpa.pl #false cat << "EOF" > tmp /** @pred static_array_properties(? _Name_, ? _Size_, ? _Type_) Show the properties size and type of a static array with name _Name_. Can also be used to enumerate all current static arrays. This built-in will silently fail if the there is no static array with that name. */ EOF sed -e "94r tmp" /Users/vsc/git/yap-6.3/pl/arrays.yap > x mv x /Users/vsc/git/yap-6.3/pl/arrays.yap #false cat << "EOF" > tmp /** @pred array(+ _Name_, + _Size_) Creates a new dynamic array. The _Size_ must evaluate to an integer. The _Name_ may be either an atom (named array) or an unbound variable (anonymous array). Dynamic arrays work as standard compound terms, hence space for the array is recovered automatically on backtracking. */ EOF sed -e "37r tmp" /Users/vsc/git/yap-6.3/pl/arrays.yap > x mv x /Users/vsc/git/yap-6.3/pl/arrays.yap #false cat << "EOF" > tmp /** @pred current_atom( _A_) Checks whether _A_ is a currently defined atom. It is used to find all currently defined atoms by backtracking. */ EOF sed -e "171r tmp" /Users/vsc/git/yap-6.3/pl/atoms.yap > x mv x /Users/vsc/git/yap-6.3/pl/atoms.yap #false cat << "EOF" > tmp /** @pred atomic_list_concat(? _As_,+ _Separator_,? _A_) Creates an atom just like atomic_list_concat/2, but inserts _Separator_ between each pair of atoms. For example: ~~~~~{.prolog} ?- atomic_list_concat([gnu, gnat], `, `, A). A = `gnu, gnat` ~~~~~ YAP emulates the SWI-Prolog version of this predicate that can also be used to split atoms by instantiating _Separator_ and _Atom_ as shown below. ~~~~~{.prolog} ?- atomic_list_concat(L, -, 'gnu-gnat'). L = [gnu, gnat] ~~~~~ */ EOF sed -e "109r tmp" /Users/vsc/git/yap-6.3/pl/atoms.yap > x mv x /Users/vsc/git/yap-6.3/pl/atoms.yap #true cat << "EOF" > tmp /** @pred atomic_list_concat(+ _As_,? _A_) The predicate holds when the first argument is a list of atomic terms, and the second unifies with the atom obtained by concatenating all the atomic terms in the first list. The first argument thus may contain atoms or numbers. */ EOF sed -e "83r tmp" /Users/vsc/git/yap-6.3/pl/atoms.yap > x mv x /Users/vsc/git/yap-6.3/pl/atoms.yap #false cat << "EOF" > tmp /** @pred atom_concat(+ _As_,? _A_) The predicate holds when the first argument is a list of atoms, and the second unifies with the atom obtained by concatenating all the atoms in the first list. */ EOF sed -e "33r tmp" /Users/vsc/git/yap-6.3/pl/atoms.yap > x mv x /Users/vsc/git/yap-6.3/pl/atoms.yap #false cat << "EOF" > tmp /** @pred call_residue(: _G_, _L_) Call goal _G_. If subgoals of _G_ are still blocked, return a list containing these goals and the variables they are blocked in. The goals are then considered as unblocked. The next example shows a case where dif/2 suspends twice, once outside call_residue/2, and the other inside: ~~~~~ ?- dif(X,Y), call_residue((dif(X,Y),(X = f(Z) ; Y = f(Z))), L). X = f(Z), L = [[Y]-dif(f(Z),Y)], dif(f(Z),Y) ? ; Y = f(Z), L = [[X]-dif(X,f(Z))], dif(X,f(Z)) ? ; no ~~~~~ The system only reports one invocation of dif/2 as having suspended. */ EOF sed -e "498r tmp" /Users/vsc/git/yap-6.3/pl/attributes.yap > x mv x /Users/vsc/git/yap-6.3/pl/attributes.yap #false cat << "EOF" > tmp /** @pred call_residue_vars(: _G_, _L_) Call goal _G_ and unify _L_ with a list of all constrained variables created during execution of _G_: ~~~~~ ?- dif(X,Z), call_residue_vars(dif(X,Y),L). dif(X,Z), call_residue_vars(dif(X,Y),L). L = [Y], dif(X,Z), dif(X,Y) ? ; no ~~~~~ */ EOF sed -e "393r tmp" /Users/vsc/git/yap-6.3/pl/attributes.yap > x mv x /Users/vsc/git/yap-6.3/pl/attributes.yap #true cat << "EOF" > tmp /** @pred copy_term(? _TI_,- _TF_,- _Goals_) Term _TF_ is a variant of the original term _TI_, such that for each variable _V_ in the term _TI_ there is a new variable _V'_ in term _TF_ without any attributes attached. Attributed variables are thus converted to standard variables. _Goals_ is unified with a list that represents the attributes. The goal `maplist(call, _Goals_)` can be called to recreate the attributes. Before the actual copying, `copy_term/3` calls `attribute_goals/1` in the module where the attribute is defined. */ EOF sed -e "249r tmp" /Users/vsc/git/yap-6.3/pl/attributes.yap > x mv x /Users/vsc/git/yap-6.3/pl/attributes.yap #false cat << "EOF" > tmp /** @pred put_attrs(+ _Var_,+ _Attributes_) Set all attributes of _Var_. See get_attrs/2 for a description of _Attributes_. */ EOF sed -e "223r tmp" /Users/vsc/git/yap-6.3/pl/attributes.yap > x mv x /Users/vsc/git/yap-6.3/pl/attributes.yap #false cat << "EOF" > tmp /** @pred del_attrs(+ _Var_) If _Var_ is an attributed variable, delete all its attributes. In all other cases, this predicate succeeds without side-effects. */ EOF sed -e "209r tmp" /Users/vsc/git/yap-6.3/pl/attributes.yap > x mv x /Users/vsc/git/yap-6.3/pl/attributes.yap #false cat << "EOF" > tmp /** @pred del_attr(+ _Var_,+ _Module_) Delete the named attribute. If _Var_ loses its last attribute it is transformed back into a traditional Prolog variable. If _Module_ is not an atom, a type error is raised. In all other cases this predicate succeeds regardless whether or not the named attribute is present. */ EOF sed -e "196r tmp" /Users/vsc/git/yap-6.3/pl/attributes.yap > x mv x /Users/vsc/git/yap-6.3/pl/attributes.yap #false cat << "EOF" > tmp /** @pred get_attr(+ _Var_,+ _Module_,- _Value_) Request the current _value_ for the attribute named _Module_. If _Var_ is not an attributed variable or the named attribute is not associated to _Var_ this predicate fails silently. If _Module_ is not an atom, a type error is raised. */ EOF sed -e "160r tmp" /Users/vsc/git/yap-6.3/pl/attributes.yap > x mv x /Users/vsc/git/yap-6.3/pl/attributes.yap #false cat << "EOF" > tmp /** @pred throw(+ _Ball_) is iso The goal `throw( _Ball_)` throws an exception. Execution is stopped, and the exception is sent to the ancestor goals until reaching a matching catch/3, or until reaching top-level. */ EOF sed -e "1534r tmp" /Users/vsc/git/yap-6.3/pl/boot.yap > x mv x /Users/vsc/git/yap-6.3/pl/boot.yap #false cat << "EOF" > tmp /** @pred catch( : _Goal_,+ _Exception_,+ _Action_) is iso The goal `catch( _Goal_, _Exception_, _Action_)` tries to execute goal _Goal_. If during its execution, _Goal_ throws an exception _E'_ and this exception unifies with _Exception_, the exception is considered to be caught and _Action_ is executed. If the exception _E'_ does not unify with _Exception_, control again throws the exception. The top-level of YAP maintains a default exception handler that is responsible to capture uncaught exceptions. */ EOF sed -e "1497r tmp" /Users/vsc/git/yap-6.3/pl/boot.yap > x mv x /Users/vsc/git/yap-6.3/pl/boot.yap #false cat << "EOF" > tmp /** @pred expand_term( _T_,- _X_) This predicate is used by YAP for preprocessing each top level term read when consulting a file and before asserting or executing it. It rewrites a term _T_ to a term _X_ according to the following rules: first try term_expansion/2 in the current module, and then try to use the user defined predicate `user:term_expansion/2`. If this call fails then the translating process for DCG rules is applied, together with the arithmetic optimizer whenever the compilation of arithmetic expressions is in progress. */ EOF sed -e "1452r tmp" /Users/vsc/git/yap-6.3/pl/boot.yap > x mv x /Users/vsc/git/yap-6.3/pl/boot.yap #false cat << "EOF" > tmp /** @pred incore(+ _P_) The same as call/1. */ EOF sed -e "1119r tmp" /Users/vsc/git/yap-6.3/pl/boot.yap > x mv x /Users/vsc/git/yap-6.3/pl/boot.yap #false cat << "EOF" > tmp /** @pred call(+ _P_) is iso Meta-call predicate. If _P_ is instantiated to an atom or a compound term, the goal `call( _P_)` is executed as if the clause was originally written as _P_ instead as call( _P_ ), except that any "cut" occurring in _P_ only cuts alternatives in the execution of _P_. */ EOF sed -e "1110r tmp" /Users/vsc/git/yap-6.3/pl/boot.yap > x mv x /Users/vsc/git/yap-6.3/pl/boot.yap #false cat << "EOF" > tmp /** @pred repeat is iso Succeeds repeatedly. In the next example, `repeat` is used as an efficient way to implement a loop. The next example reads all terms in a file: ~~~~~~~~~~~~~{.prolog} a :- repeat, read(X), write(X), nl, X=end_of_file, !. ~~~~~~~~~~~~~ the loop is effectively terminated by the cut-goal, when the test-goal `X=end` succeeds. While the test fails, the goals `read(X)`, `write(X)`, and `nl` are executed repeatedly, because backtracking is caught by the `repeat` goal. The built-in `repeat/0` could be defined in Prolog by: ~~~~~{.prolog} repeat. repeat :- repeat. ~~~~~ The predicate between/3 can be used to iterate for a pre-defined number of steps. */ EOF sed -e "583r tmp" /Users/vsc/git/yap-6.3/pl/boot.yap > x mv x /Users/vsc/git/yap-6.3/pl/boot.yap #false cat << "EOF" > tmp /** @pred true is iso Succeeds once. */ EOF sed -e "299r tmp" /Users/vsc/git/yap-6.3/pl/boot.yap > x mv x /Users/vsc/git/yap-6.3/pl/boot.yap #false cat << "EOF" > tmp /** @pred call_count(? _CallsMax_, ? _RetriesMax_, ? _CallsAndRetriesMax_) Set call counters as timers. YAP will generate an exception if one of the instantiated call counters decreases to 0: + _CallsMax_ throw the exception `call_counter` when the counter `calls` reaches 0; + _RetriesMax_ throw the exception `retry_counter` when the counter `retries` reaches 0; + _CallsAndRetriesMax_ throw the exception `call_and_retry_counter` when the counter `calls_and_retries` reaches 0. YAP will ignore counters that are called with unbound arguments. Next, we show a simple example of how to use call counters: ~~~~~{.prolog} ?- yap_flag(call_counting,on), [-user]. l :- l. end_of_file. yap_flag(call_counting,off). yes yes ?- catch((call_count(10000,_,_),l),call_counter,format("limit_exceeded.~n",[])). limit_exceeded. yes ~~~~~ Notice that we first compile the looping predicate `l/0` with call_counting `on`. Next, we catch/3 to handle an exception when `l/0` performs more than 10000 reductions. */ EOF sed -e "142r tmp" /Users/vsc/git/yap-6.3/pl/callcount.yap > x mv x /Users/vsc/git/yap-6.3/pl/callcount.yap #false cat << "EOF" > tmp /** @pred call_count_reset Reset call count counters. All timers are also reset. */ EOF sed -e "95r tmp" /Users/vsc/git/yap-6.3/pl/callcount.yap > x mv x /Users/vsc/git/yap-6.3/pl/callcount.yap #false cat << "EOF" > tmp /** @pred call_count_data(- _Calls_, - _Retries_, - _CallsAndRetries_) Give current call count data. The first argument gives the current value for the _Calls_ counter, next the _Retries_ counter, and last the _CallsAndRetries_ counter. */ EOF sed -e "86r tmp" /Users/vsc/git/yap-6.3/pl/callcount.yap > x mv x /Users/vsc/git/yap-6.3/pl/callcount.yap #false cat << "EOF" > tmp /** @pred prolog_load_context(? _Key_, ? _Value_) Obtain information on what is going on in the compilation process. The following keys are available: + directory Full name for the directory where YAP is currently consulting the file. + file Full name for the file currently being consulted. Notice that included filed are ignored. + module Current source module. + `source` (prolog_load_context/2 option) Full name for the file currently being read in, which may be consulted, reconsulted, or included. + `stream` Stream currently being read in. + `term_position` Stream position at the stream currently being read in. For SWI compatibility, it is a term of the form '$stream_position'(0,Line,0,0,0). + `source_location(? _FileName_, ? _Line_)` SWI-compatible predicate. If the last term has been read from a physical file (i.e., not from the file user or a string), unify File with an absolute path to the file and Line with the line-number in the file. Please use prolog_load_context/2. + `source_file(? _File_)` SWI-compatible predicate. True if _File_ is a loaded Prolog source file. + `source_file(? _ModuleAndPred_,? _File_)` SWI-compatible predicate. True if the predicate specified by _ModuleAndPred_ was loaded from file _File_, where _File_ is an absolute path name (see `absolute_file_name/2`). @section YAPLibrary Library Predicates Library files reside in the library_directory path (set by the `LIBDIR` variable in the Makefile for YAP). Currently, most files in the library are from the Edinburgh Prolog library. */ EOF sed -e "958r tmp" /Users/vsc/git/yap-6.3/pl/consult.yap > x mv x /Users/vsc/git/yap-6.3/pl/consult.yap #false cat << "EOF" > tmp /** @pred halt(+ _I_) is iso Halts Prolog, and exits to the calling application returning the code given by the integer _I_. */ EOF sed -e "732r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred halt is iso Halts Prolog, and exits to the calling application. In YAP, halt/0 returns the exit code `0`. */ EOF sed -e "719r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred break Suspends the execution of the current goal and creates a new execution level similar to the top level, displaying the following message: ~~~~~{.prolog} [ Break (level ) ] ~~~~~ telling the depth of the break level just entered. To return to the previous level just type the end-of-file character or call the end_of_file predicate. This predicate is especially useful during debugging. */ EOF sed -e "677r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred b_getval(+ _Name_,- _Value_) Get the value associated with the global variable _Name_ and unify it with _Value_. Note that this unification may further instantiate the value of the global variable. If this is undesirable the normal precautions (double negation or copy_term/2) must be taken. The b_getval/2 predicate generates errors if _Name_ is not an atom or the requested variable does not exist. */ EOF sed -e "618r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred b_getval(+ _Name_, - _Value_) Get the value associated with the global variable _Name_ and unify it with _Value_. Note that this unification may further instantiate the value of the global variable. If this is undesirable the normal precautions (double negation or copy_term/2) must be taken. The b_getval/2 predicate generates errors if _Name_ is not an atom or the requested variable does not exist. Notice that for compatibility with other systems _Name_ must be already associated with a term: otherwise the system will generate an error. */ EOF sed -e "618r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred nb_getval(+ _Name_,- _Value_) The nb_getval/2 predicate is a synonym for b_getval/2, introduced for compatibility and symmetry. As most scenarios will use a particular global variable either using non-backtrackable or backtrackable assignment, using nb_getval/2 can be used to document that the variable is used non-backtrackable. */ EOF sed -e "579r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred nb_getval(+ _Name_, - _Value_) The nb_getval/2 predicate is a synonym for b_getval/2, introduced for compatibility and symmetry. As most scenarios will use a particular global variable either using non-backtrackable or backtrackable assignment, using nb_getval/2 can be used to document that the variable is used non-backtrackable. */ EOF sed -e "579r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #true cat << "EOF" > tmp /** @pred version(- _Message_) Add a message to be written when yap boots or after aborting. It is not possible to remove messages. */ EOF sed -e "539r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred version Write YAP's boot message. */ EOF sed -e "530r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred prolog_initialization( _G_) Add a goal to be executed on system initialization. This is compatible with SICStus Prolog's initialization/1. */ EOF sed -e "514r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred garbage_collect_atoms The goal `garbage_collect` forces a garbage collection of the atoms in the data-base. Currently, only atoms are recovered. */ EOF sed -e "492r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred nogc The goal `nogc` disables garbage collection. The same as `yap_flag(gc,off)`. */ EOF sed -e "480r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred gc The goal `gc` enables garbage collection. The same as `yap_flag(gc,on)`. */ EOF sed -e "470r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred garbage_collect The goal `garbage_collect` forces a garbage collection. */ EOF sed -e "457r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred grow_stack(+ _Size_) Increase stack size _Size_ kilobytes */ EOF sed -e "443r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred grow_heap(+ _Size_) Increase heap size _Size_ kilobytes. */ EOF sed -e "435r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred setup_call_catcher_cleanup(: _Setup_,: _Goal_, + _Catcher_,: _CleanUpGoal_) Similar to `setup_call_cleanup( _Setup_, _Goal_, _Cleanup_)` with additional information on the reason of calling _Cleanup_. Prior to calling _Cleanup_, _Catcher_ unifies with the termination code. If this unification fails, _Cleanup_ is *not* called. */ EOF sed -e "326r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred setup_call_cleanup(: _Setup_,: _Goal_, : _CleanUpGoal_) Calls `(Setup, Goal)`. For each sucessful execution of _Setup_, calling _Goal_, the cleanup handler _Cleanup_ is guaranteed to be called exactly once. This will happen after _Goal_ completes, either through failure, deterministic success, commit, or an exception. _Setup_ will contain the goals that need to be protected from asynchronous interrupts such as the ones received from `call_with_time_limit/2` or thread_signal/2. In most uses, _Setup_ will perform temporary side-effects required by _Goal_ that are finally undone by _Cleanup_. Success or failure of _Cleanup_ is ignored and choice-points it created are destroyed (as once/1). If _Cleanup_ throws an exception, this is executed as normal. Typically, this predicate is used to cleanup permanent data storage required to execute _Goal_, close file-descriptors, etc. The example below provides a non-deterministic search for a term in a file, closing the stream as needed. ~~~~~{.prolog} term_in_file(Term, File) :- setup_call_cleanup(open(File, read, In), term_in_stream(Term, In), close(In) ). term_in_stream(Term, In) :- repeat, read(In, T), ( T == end_of_file -> !, fail ; T = Term ). ~~~~~ Note that it is impossible to implement this predicate in Prolog other than by reading all terms into a list, close the file and call member/2. Without setup_call_cleanup/3 there is no way to gain control if the choice-point left by `repeat` is removed by a cut or an exception. `setup_call_cleanup/2` can also be used to test determinism of a goal: ~~~~~ ?- setup_call_cleanup(true,(X=1;X=2), Det=yes). X = 1 ; X = 2, Det = yes ; ~~~~~ This predicate is under consideration for inclusion into the ISO standard. For compatibility with other Prolog implementations see `call_cleanup/2`. */ EOF sed -e "312r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #true cat << "EOF" > tmp /** @pred call_cleanup(: _Goal_, : _CleanUpGoal_) This is similar to call_cleanup/1 with an additional _CleanUpGoal_ which gets called after _Goal_ is finished. */ EOF sed -e "249r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred call(+ _Closure_,...,? _Ai_,...) is iso Meta-call where _Closure_ is a closure that is converted into a goal by appending the _Ai_ additional arguments. The number of arguments varies between 0 and 10. */ EOF sed -e "224r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred if(? _G_,? _H_,? _I_) Call goal _H_ once per each solution of goal _H_. If goal _H_ has no solutions, call goal _I_. The built-in `if/3` is similar to `->/3`, with the difference that it will backtrack over the test goal. Consider the following small data-base: ~~~~~{.prolog} a(1). b(a). c(x). a(2). b(b). c(y). ~~~~~ Execution of an `if/3` query will proceed as follows: ~~~~~{.prolog} ?- if(a(X),b(Y),c(Z)). X = 1, Y = a ? ; X = 1, Y = b ? ; X = 2, Y = a ? ; X = 2, Y = b ? ; no ~~~~~ The system will backtrack over the two solutions for `a/1` and the two solutions for `b/1`, generating four solutions. Cuts are allowed inside the first goal _G_, but they will only prune over _G_. If you want _G_ to be deterministic you should use if-then-else, as it is both more efficient and more portable. */ EOF sed -e "200r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #true cat << "EOF" > tmp /** @pred ignore(: _Goal_) Calls _Goal_ as once/1, but succeeds, regardless of whether `Goal` succeeded or not. Defined as: ~~~~~{.prolog} ignore(Goal) :- Goal, !. ignore(_). ~~~~~ */ EOF sed -e "141r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #true cat << "EOF" > tmp /** @pred forall(+ _Cond_,+ _Action_) For all alternative bindings of _Cond_ _Action_ can be proven. The next example verifies that all arithmetic statements in the list _L_ are correct. It does not say which is wrong if one proves wrong. ~~~~~ ?- forall(member(Result = Formula, [2 = 1 + 1, 4 = 2 * 2]), Result =:= Formula). ~~~~~ */ EOF sed -e "125r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #true cat << "EOF" > tmp /** @pred forall(: _Cond_,: _Action_) For all alternative bindings of _Cond_ _Action_ can be proven. The example verifies that all arithmetic statements in the list _L_ are correct. It does not say which is wrong if one proves wrong. ~~~~~{.prolog} ?- forall(member(Result = Formula, [2 = 1 + 1, 4 = 2 * 2]), Result =:= Formula). ~~~~~ */ EOF sed -e "125r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred once(: _G_) is iso Execute the goal _G_ only once. The predicate is defined by: ~~~~~{.prolog} once(G) :- call(G), !. ~~~~~ Note that cuts inside once/1 can only cut the other goals inside once/1. */ EOF sed -e "92r tmp" /Users/vsc/git/yap-6.3/pl/control.yap > x mv x /Users/vsc/git/yap-6.3/pl/control.yap #false cat << "EOF" > tmp /** @pred frozen( _X_, _G_) Unify _G_ with a conjunction of goals suspended on variable _X_, or `true` if no goal has suspended. */ EOF sed -e "572r tmp" /Users/vsc/git/yap-6.3/pl/corout.yap > x mv x /Users/vsc/git/yap-6.3/pl/corout.yap #false cat << "EOF" > tmp /** @pred when(+ _C_,: _G_) Delay execution of goal _G_ until the conditions _C_ are satisfied. The conditions are of the following form: + _C1_, _C2_ Delay until both conditions _C1_ and _C2_ are satisfied. + _C1_; _C2_ Delay until either condition _C1_ or condition _C2_ is satisfied. + ?=( _V1_, _C2_) Delay until terms _V1_ and _V1_ have been unified. + nonvar( _V_) Delay until variable _V_ is bound. + ground( _V_) Delay until variable _V_ is ground. Note that when/2 will fail if the conditions fail. */ EOF sed -e "331r tmp" /Users/vsc/git/yap-6.3/pl/corout.yap > x mv x /Users/vsc/git/yap-6.3/pl/corout.yap #false cat << "EOF" > tmp /** @pred dif( _X_, _Y_) Succeed if the two arguments do not unify. A call to dif/2 will suspend if unification may still succeed or fail, and will fail if they always unify. */ EOF sed -e "232r tmp" /Users/vsc/git/yap-6.3/pl/corout.yap > x mv x /Users/vsc/git/yap-6.3/pl/corout.yap #false cat << "EOF" > tmp /** @pred freeze(? _X_,: _G_) Delay execution of goal _G_ until the variable _X_ is bound. */ EOF sed -e "171r tmp" /Users/vsc/git/yap-6.3/pl/corout.yap > x mv x /Users/vsc/git/yap-6.3/pl/corout.yap #true cat << "EOF" > tmp /** @pred attribute_goals(+ _Var_,- _Gs_,+ _GsRest_) This nonterminal, if it is defined in a module, is used by _copy_term/3_ to project attributes of that module to residual goals. It is also used by the toplevel to obtain residual goals after executing a query. Normal user code should deal with put_attr/3, get_attr/3 and del_attr/2. The routines in this section fetch or set the entire attribute list of a variables. Use of these predicates is anticipated to be restricted to printing and other special purpose operations. @pred get_attrs(+ _Var_,- _Attributes_) Get all attributes of _Var_. _Attributes_ is a term of the form `att( _Module_, _Value_, _MoreAttributes_)`, where _MoreAttributes_ is `[]` for the last attribute. */ EOF sed -e "133r tmp" /Users/vsc/git/yap-6.3/pl/corout.yap > x mv x /Users/vsc/git/yap-6.3/pl/corout.yap #true cat << "EOF" > tmp /** @pred attr_unify_hook(+ _AttValue_,+ _VarValue_) Hook that must be defined in the module an attributed variable refers to. Is is called after the attributed variable has been unified with a non-var term, possibly another attributed variable. _AttValue_ is the attribute that was associated to the variable in this module and _VarValue_ is the new value of the variable. Normally this predicate fails to veto binding the variable to _VarValue_, forcing backtracking to undo the binding. If _VarValue_ is another attributed variable the hook often combines the two attribute and associates the combined attribute with _VarValue_ using put_attr/3. */ EOF sed -e "87r tmp" /Users/vsc/git/yap-6.3/pl/corout.yap > x mv x /Users/vsc/git/yap-6.3/pl/corout.yap #false cat << "EOF" > tmp /** @pred leash(+ _M_) Sets leashing mode to _M_. The mode can be specified as: + `full` prompt on Call, Exit, Redo and Fail + `tight` prompt on Call, Redo and Fail + `half` prompt on Call and Redo + `loose` prompt on Call + `off` never prompt + `none` never prompt, same as `off` The initial leashing mode is `full`. The user may also specify directly the debugger ports where he wants to be prompted. If the argument for leash is a number _N_, each of lower four bits of the number is used to control prompting at one the ports of the box model. The debugger will prompt according to the following conditions: + if `N/\ 1 =\= 0` prompt on fail + if `N/\ 2 =\= 0` prompt on redo + if `N/\ 4 =\= 0` prompt on exit + if `N/\ 8 =\= 0` prompt on call Therefore, `leash(15)` is equivalent to `leash(full)` and `leash(0)` is equivalent to `leash(off)`. Another way of using `leash` is to give it a list with the names of the ports where the debugger should stop. For example, `leash([call,exit,redo,fail])` is the same as `leash(full)` or `leash(15)` and `leash([fail])` might be used instead of `leash(1)`. */ EOF sed -e "348r tmp" /Users/vsc/git/yap-6.3/pl/debug.yap > x mv x /Users/vsc/git/yap-6.3/pl/debug.yap #false cat << "EOF" > tmp /** @pred notrace Ends tracing and exits the debugger. This is the same as nodebug/0. */ EOF sed -e "288r tmp" /Users/vsc/git/yap-6.3/pl/debug.yap > x mv x /Users/vsc/git/yap-6.3/pl/debug.yap #false cat << "EOF" > tmp /** @pred trace Switches on the debugger and enters tracing mode. */ EOF sed -e "269r tmp" /Users/vsc/git/yap-6.3/pl/debug.yap > x mv x /Users/vsc/git/yap-6.3/pl/debug.yap #false cat << "EOF" > tmp /** @pred nospyall Removes all existing spy-points. */ EOF sed -e "227r tmp" /Users/vsc/git/yap-6.3/pl/debug.yap > x mv x /Users/vsc/git/yap-6.3/pl/debug.yap #false cat << "EOF" > tmp /** @pred nospy( + _P_ ) Removes spy-points from all predicates specified by _P_. The possible forms for _P_ are the same as in `spy P`. */ EOF sed -e "212r tmp" /Users/vsc/git/yap-6.3/pl/debug.yap > x mv x /Users/vsc/git/yap-6.3/pl/debug.yap #false cat << "EOF" > tmp /** @pred spy( + _P_ ). Sets spy-points on all the predicates represented by _P_. _P_ can either be a single specification or a list of specifications. Each one must be of the form _Name/Arity_ or _Name_. In the last case all predicates with the name _Name_ will be spied. As in C-Prolog, system predicates and predicates written in C, cannot be spied. */ EOF sed -e "196r tmp" /Users/vsc/git/yap-6.3/pl/debug.yap > x mv x /Users/vsc/git/yap-6.3/pl/debug.yap #false cat << "EOF" > tmp /** @pred print_message(+ _Kind_, _Term_) The predicate print_message/2 is used to print messages, notably from exceptions in a human-readable format. _Kind_ is one of `informational`, `banner`, `warning`, `error`, `help` or `silent`. A human-readable message is printed to the stream user_error. If the Prolog flag verbose is `silent`, messages with _Kind_ `informational`, or `banner` are treated as silent.@c See \cmdlineoption{-q}. This predicate first translates the _Term_ into a list of `message lines` (see print_message_lines/3 for details). Next it will call the hook message_hook/3 to allow the user intercepting the message. If message_hook/3 fails it will print the message unless _Kind_ is silent. If you need to report errors from your own predicates, we advise you to stick to the existing error terms if you can; but should you need to invent new ones, you can define corresponding error messages by asserting clauses for `prolog:message/2`. You will need to declare the predicate as multifile. */ EOF sed -e "297r tmp" /Users/vsc/git/yap-6.3/pl/errors.yap > x mv x /Users/vsc/git/yap-6.3/pl/errors.yap #false cat << "EOF" > tmp /** @pred message_to_string(+ _Term_, - _String_) Translates a message-term into a string object. Primarily intended for SWI-Prolog emulation. */ EOF sed -e "268r tmp" /Users/vsc/git/yap-6.3/pl/errors.yap > x mv x /Users/vsc/git/yap-6.3/pl/errors.yap #false cat << "EOF" > tmp /** @pred create_prolog_flag(+ _Flag_,+ _Value_,+ _Options_) Create a new YAP Prolog flag. _Options_ include `type(+Type)` and `access(+Access)` with _Access_ one of `read_only` or `read_write` and _Type_ one of `boolean`, `integer`, `float`, `atom` and `term` (that is, no type). */ EOF sed -e "1343r tmp" /Users/vsc/git/yap-6.3/pl/flags.yap > x mv x /Users/vsc/git/yap-6.3/pl/flags.yap #false cat << "EOF" > tmp /** @pred prolog_flag(? _Flag_,- _OldValue_,+ _NewValue_) Obtain the value for a YAP Prolog flag and then set it to a new value. Equivalent to first calling current_prolog_flag/2 with the second argument _OldValue_ unbound and then calling set_prolog_flag/2 with the third argument _NewValue_. */ EOF sed -e "1323r tmp" /Users/vsc/git/yap-6.3/pl/flags.yap > x mv x /Users/vsc/git/yap-6.3/pl/flags.yap #false cat << "EOF" > tmp /** @pred set_prolog_flag(+ _Flag_,+ _Value_) is iso Set the value for YAP Prolog flag `Flag`. Equivalent to calling yap_flag/2 with both arguments bound. */ EOF sed -e "1280r tmp" /Users/vsc/git/yap-6.3/pl/flags.yap > x mv x /Users/vsc/git/yap-6.3/pl/flags.yap #false cat << "EOF" > tmp /** @pred current_prolog_flag(? _Flag_,- _Value_) is iso Obtain the value for a YAP Prolog flag. Equivalent to calling yap_flag/2 with the second argument unbound, and unifying the returned second argument with _Value_. */ EOF sed -e "1256r tmp" /Users/vsc/git/yap-6.3/pl/flags.yap > x mv x /Users/vsc/git/yap-6.3/pl/flags.yap #false cat << "EOF" > tmp /** @pred yap_flag(tabling_mode,? _Mode_) Sets or reads the tabling mode for all tabled predicates. The list of _Mode_ options includes: + `default` Defines that (i) all calls to tabled predicates are evaluated using the predicate default mode, and that (ii) answers for all completed calls are obtained by using the predicate default mode. + `batched` Defines that all calls to tabled predicates are evaluated using batched scheduling. This option ignores the default tabling mode of each predicate. + `local` Defines that all calls to tabled predicates are evaluated using local scheduling. This option ignores the default tabling mode of each predicate. + `exec_answers` Defines that answers for all completed calls are obtained by executing compiled WAM-like code directly from the trie data structure. This option ignores the default tabling mode of each predicate. + `load_answers` Defines that answers for all completed calls are obtained by loading them from the trie data structure. This option ignores the default tabling mode of each predicate. */ EOF sed -e "585r tmp" /Users/vsc/git/yap-6.3/pl/flags.yap > x mv x /Users/vsc/git/yap-6.3/pl/flags.yap #false cat << "EOF" > tmp /** @pred yap_flag(unknown,+ _SPEC_) Alternatively, one can use yap_flag/2, current_prolog_flag/2, or set_prolog_flag/2, to set this functionality. In this case, the first argument for the built-ins should be `unknown`, and the second argument should be either `error`, `warning`, `fail`, or a goal. */ EOF sed -e "585r tmp" /Users/vsc/git/yap-6.3/pl/flags.yap > x mv x /Users/vsc/git/yap-6.3/pl/flags.yap #false cat << "EOF" > tmp /** @pred yap_flag(? _Param_,? _Value_) Set or read system properties for _Param_: + `argv ` Read-only flag. It unifies with a list of atoms that gives the arguments to YAP after `--`. + `agc_margin ` An integer: if this amount of atoms has been created since the last atom-garbage collection, perform atom garbage collection at the first opportunity. Initial value is 10,000. May be changed. A value of 0 (zero) disables atom garbage collection. + `associate ` Read-write flag telling a suffix for files associated to Prolog sources. It is `yap` by default. + `bounded is iso ` Read-only flag telling whether integers are bounded. The value depends on whether YAP uses the GMP library or not. + `profiling ` If `off` (default) do not compile call counting information for procedures. If `on` compile predicates so that they calls and retries to the predicate may be counted. Profiling data can be read through the call_count_data/3 built-in. + `char_conversion is iso` Writable flag telling whether a character conversion table is used when reading terms. The default value for this flag is `off` except in `sicstus` and `iso` language modes, where it is `on`. + `character_escapes is iso ` Writable flag telling whether a character escapes are enables, `true`, or disabled, `false`. The default value for this flag is `on`. + `debug is iso ` If _Value_ is unbound, tell whether debugging is `true` or `false`. If _Value_ is bound to `true` enable debugging, and if it is bound to `false` disable debugging. + `debugger_print_options ` If bound, set the argument to the `write_term/3` options the debugger uses to write terms. If unbound, show the current options. + `dialect ` Read-only flag that always returns `yap`. + `discontiguous_warnings ` If _Value_ is unbound, tell whether warnings for discontiguous predicates are `on` or `off`. If _Value_ is bound to `on` enable these warnings, and if it is bound to `off` disable them. The default for YAP is `off`, unless we are in `sicstus` or `iso` mode. + `dollar_as_lower_case ` If `off` (default) consider the character `$` a control character, if `on` consider `$` a lower case character. + `double_quotes is iso ` If _Value_ is unbound, tell whether a double quoted list of characters token is converted to a list of atoms, `chars`, to a list of integers, `codes`, or to a single atom, `atom`. If _Value_ is bound, set to the corresponding behavior. The default value is `codes`. + `executable ` Read-only flag. It unifies with an atom that gives the original program path. + `fast ` If `on` allow fast machine code, if `off` (default) disable it. Only available in experimental implementations. + `fileerrors` If `on` `fileerrors` is `on`, if `off` (default) `fileerrors` is disabled. + `float_format ` C-library `printf()` format specification used by write/1 and friends to determine how floating point numbers are printed. The default is `%.15g`. The specified value is passed to `printf()` without further checking. For example, if you want less digits printed, `%g` will print all floats using 6 digits instead of the default 15. + `gc` If `on` allow garbage collection (default), if `off` disable it. + `gc_margin ` Set or show the minimum free stack before starting garbage collection. The default depends on total stack size. + `gc_trace ` If `off` (default) do not show information on garbage collection and stack shifts, if `on` inform when a garbage collection or stack shift happened, if verbose give detailed information on garbage collection and stack shifts. Last, if `very_verbose` give detailed information on data-structures found during the garbage collection process, namely, on choice-points. + `generate_debugging_info ` If `true` (default) generate debugging information for procedures, including source mode. If `false` predicates no information is generated, although debugging is still possible, and source mode is disabled. + `host_type ` Return `configure` system information, including the machine-id for which YAP was compiled and Operating System information. + `index ` If `on` allow indexing (default), if `off` disable it, if `single` allow on first argument only. + `index_sub_term_search_depth ` Maximum bound on searching sub-terms for indexing, if `0` (default) no bound. + `informational_messages ` If `on` allow printing of informational messages, such as the ones that are printed when consulting. If `off` disable printing these messages. It is `on` by default except if YAP is booted with the `-L` flag. + `integer_rounding_function is iso ` Read-only flag telling the rounding function used for integers. Takes the value `toward_zero` for the current version of YAP. + `language ` Choose whether YAP is closer to C-Prolog, `cprolog`, iso-prolog, `iso` or SICStus Prolog, `sicstus`. The current default is `cprolog`. This flag affects update semantics, leashing mode, style checking, handling calls to undefined procedures, how directives are interpreted, when to use dynamic, character escapes, and how files are consulted. + `max_arity is iso ` Read-only flag telling the maximum arity of a functor. Takes the value `unbounded` for the current version of YAP. + `max_integer is iso ` Read-only flag telling the maximum integer in the implementation. Depends on machine and Operating System architecture, and on whether YAP uses the `GMP` multi-precision library. If bounded is false, requests for max_integer will fail. + `max_tagged_integer ` Read-only flag telling the maximum integer we can store as a single word. Depends on machine and Operating System architecture. It can be used to find the word size of the current machine. + `min_integer is iso ` Read-only flag telling the minimum integer in the implementation. Depends on machine and Operating System architecture, and on whether YAP uses the `GMP` multi-precision library. If bounded is false, requests for min_integer will fail. + `min_tagged_integer ` Read-only flag telling the minimum integer we can store as a single word. Depends on machine and Operating System architecture. + `n_of_integer_keys_in_bb ` Read or set the size of the hash table that is used for looking up the blackboard when the key is an integer. + `occurs_check ` Current read-only and set to `false`. + `n_of_integer_keys_in_db ` Read or set the size of the hash table that is used for looking up the internal data-base when the key is an integer. + `open_expands_filename ` If `true` the open/3 builtin performs filename-expansion before opening a file (SICStus Prolog like). If `false` it does not (SWI-Prolog like). + `open_shared_object ` If true, `open_shared_object/2` and friends are implemented, providing access to shared libraries (`.so` files) or to dynamic link libraries (`.DLL` files). + `profiling ` If `off` (default) do not compile profiling information for procedures. If `on` compile predicates so that they will output profiling information. Profiling data can be read through the profile_data/3 built-in. + `prompt_alternatives_on(atom, changeable) ` SWI-Compatible option, determines prompting for alternatives in the Prolog toplevel. Default is groundness, YAP prompts for alternatives if and only if the query contains variables. The alternative, default in SWI-Prolog is determinism which implies the system prompts for alternatives if the goal succeeded while leaving choicepoints. + `redefine_warnings ` If _Value_ is unbound, tell whether warnings for procedures defined in several different files are `on` or `off`. If _Value_ is bound to `on` enable these warnings, and if it is bound to `off` disable them. The default for YAP is `off`, unless we are in `sicstus` or `iso` mode. + `shared_object_search_path ` Name of the environment variable used by the system to search for shared objects. + `shared_object_extension ` Suffix associated with loadable code. + `single_var_warnings ` If _Value_ is unbound, tell whether warnings for singleton variables are `on` or `off`. If _Value_ is bound to `on` enable these warnings, and if it is bound to `off` disable them. The default for YAP is `off`, unless we are in `sicstus` or `iso` mode. + `strict_iso ` If _Value_ is unbound, tell whether strict ISO compatibility mode is `on` or `off`. If _Value_ is bound to `on` set language mode to `iso` and enable strict mode. If _Value_ is bound to `off` disable strict mode, and keep the current language mode. The default for YAP is `off`. Under strict ISO Prolog mode all calls to non-ISO built-ins generate an error. Compilation of clauses that would call non-ISO built-ins will also generate errors. Pre-processing for grammar rules is also disabled. Module expansion is still performed. Arguably, ISO Prolog does not provide all the functionality required from a modern Prolog system. Moreover, because most Prolog implementations do not fully implement the standard and because the standard itself gives the implementor latitude in a few important questions, such as the unification algorithm and maximum size for numbers there is no guarantee that programs compliant with this mode will work the same way in every Prolog and in every platform. We thus believe this mode is mostly useful when investigating how a program depends on a Prolog's platform specific features. + `stack_dump_on_error ` If `on` show a stack dump when YAP finds an error. The default is `off`. + `syntax_errors` Control action to be taken after syntax errors while executing read/1, `read/2`, or `read_term/3`: + `dec10` Report the syntax error and retry reading the term. + `fail` Report the syntax error and fail (default). + `error` Report the syntax error and generate an error. + `quiet` Just fail + `system_options ` This read only flag tells which options were used to compile YAP. Currently it informs whether the system supports `big_numbers`, `coroutining`, `depth_limit`, `low_level_tracer`, `or-parallelism`, `rational_trees`, `readline`, `tabling`, `threads`, or the `wam_profiler`. + `tabling_mode` Sets or reads the tabling mode for all tabled predicates. Please (see Tabling) for the list of options. + `to_chars_mode ` Define whether YAP should follow `quintus`-like semantics for the `atom_chars/1` or `number_chars/1` built-in, or whether it should follow the ISO standard (`iso` option). + `toplevel_hook ` If bound, set the argument to a goal to be executed before entering the top-level. If unbound show the current goal or `true` if none is presented. Only the first solution is considered and the goal is not backtracked into. + `toplevel_print_options ` If bound, set the argument to the `write_term/3` options used to write terms from the top-level. If unbound, show the current options. + `typein_module ` If bound, set the current working or type-in module to the argument, which must be an atom. If unbound, unify the argument with the current working module. + `unix` Read-only Boolean flag that unifies with `true` if YAP is running on an Unix system. Defined if the C-compiler used to compile this version of YAP either defines `__unix__` or `unix`. + `unknown is iso` Corresponds to calling the unknown/2 built-in. Possible values are `error`, `fail`, and `warning`. + `update_semantics ` Define whether YAP should follow `immediate` update semantics, as in C-Prolog (default), `logical` update semantics, as in Quintus Prolog, SICStus Prolog, or in the ISO standard. There is also an intermediate mode, `logical_assert`, where dynamic procedures follow logical semantics but the internal data base still follows immediate semantics. + `user_error ` If the second argument is bound to a stream, set user_error to this stream. If the second argument is unbound, unify the argument with the current user_error stream. By default, the user_error stream is set to a stream corresponding to the Unix `stderr` stream. The next example shows how to use this flag: ~~~{.prolog} ?- open( '/dev/null', append, Error, [alias(mauri_tripa)] ). Error = '$stream'(3) ? ; no ?- set_prolog_flag(user_error, mauri_tripa). close(mauri_tripa). yes ?- ~~~ We execute three commands. First, we open a stream in write mode and give it an alias, in this case `mauri_tripa`. Next, we set user_error to the stream via the alias. Note that after we did so prompts from the system were redirected to the stream `mauri_tripa`. Last, we close the stream. At this point, YAP automatically redirects the user_error alias to the original `stderr`. + `user_flags ` Define the behaviour of set_prolog_flag/2 if the flag is not known. Values are `silent`, `warning` and `error`. The first two create the flag on-the-fly, with `warning` printing a message. The value `error` is consistent with ISO: it raises an existence error and does not create the flag. See also `create_prolog_flag/3`. The default is`error`, and developers are encouraged to use `create_prolog_flag/3` to create flags for their library. + `user_input ` If the second argument is bound to a stream, set user_input to this stream. If the second argument is unbound, unify the argument with the current user_input stream. By default, the user_input stream is set to a stream corresponding to the Unix `stdin` stream. + `user_output ` If the second argument is bound to a stream, set user_output to this stream. If the second argument is unbound, unify the argument with the current user_output stream. By default, the user_output stream is set to a stream corresponding to the Unix `stdout` stream. + `verbose ` If `normal` allow printing of informational and banner messages, such as the ones that are printed when consulting. If `silent` disable printing these messages. It is `normal` by default except if YAP is booted with the `-q` or `-L` flag. + `verbose_load ` If `true` allow printing of informational messages when consulting files. If `false` disable printing these messages. It is `normal` by default except if YAP is booted with the `-L` flag. + `version ` Read-only flag that returns an atom with the current version of YAP. + `version_data ` Read-only flag that reads a term of the form `yap`( _Major_, _Minor_, _Patch_, _Undefined_), where _Major_ is the major version, _Minor_ is the minor version, and _Patch_ is the patch number. + `windows ` Read-only boolean flag that unifies with tr `true` if YAP is running on an Windows machine. + `write_strings ` Writable flag telling whether the system should write lists of integers that are writable character codes using the list notation. It is `on` if enables or `off` if disabled. The default value for this flag is `off`. + `max_workers ` Read-only flag telling the maximum number of parallel processes. + `max_threads ` Read-only flag telling the maximum number of Prolog threads that can be created. */ EOF sed -e "585r tmp" /Users/vsc/git/yap-6.3/pl/flags.yap > x mv x /Users/vsc/git/yap-6.3/pl/flags.yap #true cat << "EOF" > tmp /** @pred phrase(+ _P_, _L_, _R_) This predicate succeeds when the difference list ` _L_- _R_` is a phrase of type _P_. */ EOF sed -e "63r tmp" /Users/vsc/git/yap-6.3/pl/grammar.yap > x mv x /Users/vsc/git/yap-6.3/pl/grammar.yap #true cat << "EOF" > tmp /** @pred phrase(+ _P_, _L_) This predicate succeeds when _L_ is a phrase of type _P_. The same as `phrase(P,L,[])`. Both this predicate and the previous are used as a convenient way to start execution of grammar rules. */ EOF sed -e "63r tmp" /Users/vsc/git/yap-6.3/pl/grammar.yap > x mv x /Users/vsc/git/yap-6.3/pl/grammar.yap #false cat << "EOF" > tmp /** @pred exception(+ _Exception_, + _Context_, - _Action_) Dynamic predicate, normally not defined. Called by the Prolog system on run-time exceptions that can be repaired `just-in-time`. The values for _Exception_ are described below. See also catch/3 and throw/1. If this hook predicate succeeds it must instantiate the _Action_ argument to the atom `fail` to make the operation fail silently, `retry` to tell Prolog to retry the operation or `error` to make the system generate an exception. The action `retry` only makes sense if this hook modified the environment such that the operation can now succeed without error. + `undefined_predicate` _Context_ is instantiated to a predicate-indicator ( _Module:Name/Arity_). If the predicate fails Prolog will generate an existence_error exception. The hook is intended to implement alternatives to the SWI built-in autoloader, such as autoloading code from a database. Do not use this hook to suppress existence errors on predicates. See also `unknown`. + `undefined_global_variable` _Context_ is instantiated to the name of the missing global variable. The hook must call nb_setval/2 or b_setval/2 before returning with the action retry. */ EOF sed -e "334r tmp" /Users/vsc/git/yap-6.3/pl/init.yap > x mv x /Users/vsc/git/yap-6.3/pl/init.yap #false cat << "EOF" > tmp /** @pred user:message_hook(+ _Term_, + _Kind_, + _Lines_) Hook predicate that may be define in the module `user` to intercept messages from print_message/2. _Term_ and _Kind_ are the same as passed to print_message/2. _Lines_ is a list of format statements as described with print_message_lines/3. This predicate should be defined dynamic and multifile to allow other modules defining clauses for it too. */ EOF sed -e "308r tmp" /Users/vsc/git/yap-6.3/pl/init.yap > x mv x /Users/vsc/git/yap-6.3/pl/init.yap #false cat << "EOF" > tmp /** @pred false is iso The same as fail. */ EOF sed -e "68r tmp" /Users/vsc/git/yap-6.3/pl/init.yap > x mv x /Users/vsc/git/yap-6.3/pl/init.yap #false cat << "EOF" > tmp /** @pred fail is iso Always fails. */ EOF sed -e "59r tmp" /Users/vsc/git/yap-6.3/pl/init.yap > x mv x /Users/vsc/git/yap-6.3/pl/init.yap #true cat << "EOF" > tmp /** @pred portray_clause(+ _C_) Write clause _C_ as if written by listing/0. */ EOF sed -e "218r tmp" /Users/vsc/git/yap-6.3/pl/listing.yap > x mv x /Users/vsc/git/yap-6.3/pl/listing.yap #true cat << "EOF" > tmp /** @pred portray_clause(+ _S_,+ _C_) Write clause _C_ on stream _S_ as if written by listing/0. */ EOF sed -e "207r tmp" /Users/vsc/git/yap-6.3/pl/listing.yap > x mv x /Users/vsc/git/yap-6.3/pl/listing.yap #true cat << "EOF" > tmp /** @pred listing(+ _P_) Lists predicate _P_ if its source code is available. */ EOF sed -e "78r tmp" /Users/vsc/git/yap-6.3/pl/listing.yap > x mv x /Users/vsc/git/yap-6.3/pl/listing.yap #true cat << "EOF" > tmp /** @pred listing Lists in the current output stream all the clauses for which source code is available (these include all clauses for dynamic predicates and clauses for static predicates compiled when source mode was `on`). */ EOF sed -e "58r tmp" /Users/vsc/git/yap-6.3/pl/listing.yap > x mv x /Users/vsc/git/yap-6.3/pl/listing.yap #true cat << "EOF" > tmp /** @pred delete(+ _List_, ? _Element_, ? _Residue_) True when _List_ is a list, in which _Element_ may or may not occur, and _Residue_ is a copy of _List_ with all elements identical to _Element_ deleted. */ EOF sed -e "69r tmp" /Users/vsc/git/yap-6.3/pl/lists.yap > x mv x /Users/vsc/git/yap-6.3/pl/lists.yap #true cat << "EOF" > tmp /** @pred append(? _List1_,? _List2_,? _List3_) Succeeds when _List3_ unifies with the concatenation of _List1_ and _List2_. The predicate can be used with any instantiation pattern (even three variables). */ EOF sed -e "49r tmp" /Users/vsc/git/yap-6.3/pl/lists.yap > x mv x /Users/vsc/git/yap-6.3/pl/lists.yap #true cat << "EOF" > tmp /** @pred member(? _Element_, ? _Set_) True when _Set_ is a list, and _Element_ occurs in it. It may be used to test for an element or to enumerate all the elements by backtracking. */ EOF sed -e "36r tmp" /Users/vsc/git/yap-6.3/pl/lists.yap > x mv x /Users/vsc/git/yap-6.3/pl/lists.yap #true cat << "EOF" > tmp /** @pred memberchk(+ _Element_, + _Set_) As member/2, but may only be used to test whether a known _Element_ occurs in a known Set. In return for this limited use, it is more efficient when it is applicable. */ EOF sed -e "19r tmp" /Users/vsc/git/yap-6.3/pl/lists.yap > x mv x /Users/vsc/git/yap-6.3/pl/lists.yap #false cat << "EOF" > tmp /** @pred open_shared_object(+ _File_, - _Handle_, + _Options_) As `open_shared_object/2`, but allows for additional flags to be passed. _Options_ is a list of atoms. `now` implies the symbols are resolved immediately rather than lazily (default). `global` implies symbols of the loaded object are visible while loading other shared objects (by default they are local). Note that these flags may not be supported by your operating system. Check the documentation of `dlopen()` or equivalent on your operating system. Unsupported flags are silently ignored. */ EOF sed -e "170r tmp" /Users/vsc/git/yap-6.3/pl/load_foreign.yap > x mv x /Users/vsc/git/yap-6.3/pl/load_foreign.yap #false cat << "EOF" > tmp /** @pred open_shared_object(+ _File_, - _Handle_) File is the name of a shared object file (called dynamic load library in MS-Windows). This file is attached to the current process and _Handle_ is unified with a handle to the library. Equivalent to `open_shared_object(File, [], Handle)`. See also load_foreign_library/1 and `load_foreign_library/2`. On errors, an exception `shared_object`( _Action_, _Message_) is raised. _Message_ is the return value from dlerror(). */ EOF sed -e "153r tmp" /Users/vsc/git/yap-6.3/pl/load_foreign.yap > x mv x /Users/vsc/git/yap-6.3/pl/load_foreign.yap #false cat << "EOF" > tmp /** @pred load_foreign_files( _Files_, _Libs_, _InitRoutine_) should be used, from inside YAP, to load object files produced by the C compiler. The argument _ObjectFiles_ should be a list of atoms specifying the object files to load, _Libs_ is a list (possibly empty) of libraries to be passed to the unix loader (`ld`) and InitRoutine is the name of the C routine (to be called after the files are loaded) to perform the necessary declarations to YAP of the predicates defined in the files. YAP will search for _ObjectFiles_ in the current directory first. If it cannot find them it will search for the files using the environment variable: + YAPLIBDIR if defined, or in the default library. YAP also supports the SWI-Prolog interface to loading foreign code: */ EOF sed -e "53r tmp" /Users/vsc/git/yap-6.3/pl/load_foreign.yap > x mv x /Users/vsc/git/yap-6.3/pl/load_foreign.yap #false cat << "EOF" > tmp /** @pred print_message_lines(+ _Stream_, + _Prefix_, + _Lines_) Print a message (see print_message/2) that has been translated to a list of message elements. The elements of this list are: + _Format_-_Args_ Where _Format_ is an atom and _Args_ is a list of format argument. Handed to `format/3`. + `flush` If this appears as the last element, _Stream_ is flushed (see `flush_output/1`) and no final newline is generated. + `at_same_line` If this appears as first element, no prefix is printed for the first line and the line-position is not forced to 0 (see `format/1`, `~N`). + `` Handed to `format/3` as `format(Stream, Format, [])`. + nl A new line is started and if the message is not complete the _Prefix_ is printed too. */ EOF sed -e "580r tmp" /Users/vsc/git/yap-6.3/pl/messages.yap > x mv x /Users/vsc/git/yap-6.3/pl/messages.yap #false cat << "EOF" > tmp /** @pred with_mutex(+ _MutexId_, : _Goal_) Execute _Goal_ while holding _MutexId_. If _Goal_ leaves choicepoints, these are destroyed (as in once/1). The mutex is unlocked regardless of whether _Goal_ succeeds, fails or raises an exception. An exception thrown by _Goal_ is re-thrown after the mutex has been successfully unlocked. See also `mutex_create/2`. Although described in the thread-section, this predicate is also available in the single-threaded version, where it behaves simply as once/1. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred call_shared_object_function(+ _Handle_, + _Function_) Call the named function in the loaded shared library. The function is called without arguments and the return-value is ignored. In SWI-Prolog, normally this function installs foreign language predicates using calls to `PL_register_foreign()`. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred with_output_to(+ _Ouput_,: _Goal_) Run _Goal_ as once/1, while characters written to the current output are sent to _Output_. The predicate is SWI-Prolog specific. Applications should generally avoid creating atoms by breaking and concatenating other atoms as the creation of large numbers of intermediate atoms generally leads to poor performance, even more so in multi-threaded applications. This predicate supports creating difference-lists from character data efficiently. The example below defines the DCG rule `term/3` to insert a term in the output: ~~~~~ term(Term, In, Tail) :- with_output_to(codes(In, Tail), write(Term)). ?- phrase(term(hello), X). X = [104, 101, 108, 108, 111] ~~~~~ + A Stream handle or alias Temporary switch current output to the given stream. Redirection using with_output_to/2 guarantees the original output is restored, also if Goal fails or raises an exception. See also call_cleanup/2. + atom(- _Atom_) Create an atom from the emitted characters. Please note the remark above. + string(- _String_) Create a string-object (not supported in YAP). + codes(- _Codes_) Create a list of character codes from the emitted characters, similar to atom_codes/2. + codes(- _Codes_, - _Tail_) Create a list of character codes as a difference-list. + chars(- _Chars_) Create a list of one-character-atoms codes from the emitted characters, similar to atom_chars/2. + chars(- _Chars_, - _Tail_) Create a list of one-character-atoms as a difference-list. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred setof( _X_,+ _P_,- _B_) is iso Similar to `bagof( _T_, _G_, _L_)` but sorts list _L_ and keeping only one copy of each element. Again, assuming the same clauses as in the examples above, the reply to the query ~~~~~ setof(X,a(X,Y),L). ~~~~~ would be: ~~~~~ X = _32 Y = 1 L = [1,2]; X = _32 Y = 2 L = [2]; no ~~~~~ */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred format(+ _T_,+ _L_) Print formatted output to the current output stream. The arguments in list _L_ are output according to the string or atom _T_. A control sequence is introduced by a `w`. The following control sequences are available in YAP: + `~~` Print a single tilde. + `~a` The next argument must be an atom, that will be printed as if by `write`. + `~Nc` The next argument must be an integer, that will be printed as a character code. The number _N_ is the number of times to print the character (default 1). + `~Ne` + `~NE` + `~Nf` + `~Ng` + `~NG` The next argument must be a floating point number. The float _F_, the number _N_ and the control code `c` will be passed to `printf` as: ~~~~~{.prolog} printf("%s.Nc", F) ~~~~~ As an example: ~~~~~{.prolog} ?- format("~8e, ~8E, ~8f, ~8g, ~8G~w", [3.14,3.14,3.14,3.14,3.14,3.14]). 3.140000e+00, 3.140000E+00, 3.140000, 3.14, 3.143.14 ~~~~~ + `~Nd` The next argument must be an integer, and _N_ is the number of digits after the decimal point. If _N_ is `0` no decimal points will be printed. The default is _N = 0_. ~~~~~{.prolog} ?- format("~2d, ~d",[15000, 15000]). 150.00, 15000 ~~~~~ + `~ND` Identical to `~Nd`, except that commas are used to separate groups of three digits. ~~~~~{.prolog} ?- format("~2D, ~D",[150000, 150000]). 1,500.00, 150,000 ~~~~~ + `~i` Ignore the next argument in the list of arguments: ~~~~~{.prolog} ?- format('The ~i met the boregrove',[mimsy]). The met the boregrove ~~~~~ + `~k` Print the next argument with `write_canonical`: ~~~~~{.prolog} ?- format("Good night ~k",a+[1,2]). Good night +(a,[1,2]) ~~~~~ + `~Nn` Print _N_ newlines (where _N_ defaults to 1). + `~NN` Print _N_ newlines if at the beginning of the line (where _N_ defaults to 1). + `~Nr` The next argument must be an integer, and _N_ is interpreted as a radix, such that `2 <= N <= 36` (the default is 8). ~~~~~{.prolog} ?- format("~2r, 0x~16r, ~r", [150000, 150000, 150000]). 100100100111110000, 0x249f0, 444760 ~~~~~ Note that the letters `a-z` denote digits larger than 9. + `~NR` Similar to `~NR`. The next argument must be an integer, and _N_ is interpreted as a radix, such that `2 <= N <= 36` (the default is 8). ~~~~~{.prolog} ?- format("~2r, 0x~16r, ~r", [150000, 150000, 150000]). 100100100111110000, 0x249F0, 444760 ~~~~~ The only difference is that letters `A-Z` denote digits larger than 9. + `~p` Print the next argument with print/1: ~~~~~{.prolog} ?- format("Good night ~p",a+[1,2]). Good night a+[1,2] ~~~~~ + `~q` Print the next argument with writeq/1: ~~~~~{.prolog} ?- format("Good night ~q",'Hello'+[1,2]). Good night 'Hello'+[1,2] ~~~~~ + `~Ns` The next argument must be a list of character codes. The system then outputs their representation as a string, where _N_ is the maximum number of characters for the string ( _N_ defaults to the length of the string). ~~~~~{.prolog} ?- format("The ~s are ~4s",["woods","lovely"]). The woods are love ~~~~~ + `~w` Print the next argument with write/1: ~~~~~ ?- format("Good night ~w",'Hello'+[1,2]). Good night Hello+[1,2] ~~~~~ The number of arguments, `N`, may be given as an integer, or it may be given as an extra argument. The next example shows a small procedure to write a variable number of `a` characters: ~~~~~ write_many_as(N) :- format("~*c",[N,0'a]). ~~~~~ The format/2 built-in also allows for formatted output. One can specify column boundaries and fill the intermediate space by a padding character: + `~N|` Set a column boundary at position _N_, where _N_ defaults to the current position. + `~N+` Set a column boundary at _N_ characters past the current position, where _N_ defaults to `8`. + `~Nt` Set padding for a column, where _N_ is the fill code (default is `SPC`). The next example shows how to align columns and padding. We first show left-alignment: ~~~~~ ?- format("~n*Hello~16+*~n",[]). *Hello * ~~~~~ Note that we reserve 16 characters for the column. The following example shows how to do right-alignment: ~~~~~ ?- format("*~tHello~16+*~n",[]). * Hello* ~~~~~ The `~t` escape sequence forces filling before `Hello`. We next show how to do centering: ~~~~~ ?- format("*~tHello~t~16+*~n",[]). * Hello * ~~~~~ The two `~t` escape sequence force filling both before and after `Hello`. Space is then evenly divided between the right and the left sides. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred format(+ _S_,+ _T_,+ _L_) Print formatted output to stream _S_. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred findall( _T_,+ _G_,- _L_) is iso Unifies _L_ with a list that contains all the instantiations of the term _T_ satisfying the goal _G_. With the following program: ~~~~~ a(2,1). a(1,1). a(2,2). ~~~~~ the answer to the query ~~~~~ findall(X,a(X,Y),L). ~~~~~ would be: ~~~~~ X = _32 Y = _33 L = [2,1,2]; no ~~~~~ */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred findall( _T_,+ _G_,+ _L_,- _L0_) Similar to findall/3, but appends all answers to list _L0_. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred call_with_args(+ _Name_,...,? _Ai_,...) Meta-call where _Name_ is the name of the procedure to be called and the _Ai_ are the arguments. The number of arguments varies between 0 and 10. New code should use `call/N` for better portability. If _Name_ is a complex term, then call_with_args/n behaves as call/n: ~~~~~{.prolog} call(p(X1,...,Xm), Y1,...,Yn) :- p(X1,...,Xm,Y1,...,Yn). ~~~~~ */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred bb_update(+ _Key_,? _Term_,? _New_) Atomically unify a term stored in the blackboard under key _Key_ with _Term_, and if the unification succeeds replace it by _New_. Fail silently if no such term exists or if unification fails. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred bb_put(+ _Key_,? _Term_) Store term table _Term_ in the blackboard under key _Key_. If a previous term was stored under key _Key_ it is simply forgotten. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred bb_get(+ _Key_,? _Term_) Unify _Term_ with a term stored in the blackboard under key _Key_, or fail silently if no such term exists. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred bb_delete(+ _Key_,? _Term_) Delete any term stored in the blackboard under key _Key_ and unify it with _Term_. Fail silently if no such term exists. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred bagof( _T_,+ _G_,- _L_) is iso For each set of possible instances of the free variables occurring in _G_ but not in _T_, generates the list _L_ of the instances of _T_ satisfying _G_. Again, assuming the same clauses as in the examples above, the reply to the query ~~~~~ bagof(X,a(X,Y),L). would be: X = _32 Y = 1 L = [2,1]; X = _32 Y = 2 L = [2]; no ~~~~~ */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred all( _T_,+ _G_,- _L_) Similar to `findall( _T_, _G_, _L_)` but eliminate repeated elements. Thus, assuming the same clauses as in the above example, the reply to the query ~~~~~ all(X,a(X,Y),L). ~~~~~ would be: ~~~~~ X = _32 Y = _33 L = [2,1]; no ~~~~~ Note that all/3 will fail if no answers are found. */ EOF sed -e "1060r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred current_module( _M_, _F_) Succeeds if _M_ are current modules associated to the file _F_. */ EOF sed -e "553r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred current_module( _M_) Succeeds if _M_ are defined modules. A module is defined as soon as some predicate defined in the module is loaded, as soon as a goal in the module is called, or as soon as it becomes the current type-in module. */ EOF sed -e "537r tmp" /Users/vsc/git/yap-6.3/pl/modules.yap > x mv x /Users/vsc/git/yap-6.3/pl/modules.yap #false cat << "EOF" > tmp /** @pred setenv(+ _Name_,+ _Value_) Set environment variable. _Name_ and _Value_ should be instantiated to atoms or integers. The environment variable will be passed to `shell/[0-2]` and can be requested using `getenv/2`. They also influence expand_file_name/2. */ EOF sed -e "215r tmp" /Users/vsc/git/yap-6.3/pl/os.yap > x mv x /Users/vsc/git/yap-6.3/pl/os.yap #false cat << "EOF" > tmp /** @pred putenv(+ _E_,+ _S_) Set environment variable _E_ to the value _S_. If the environment variable _E_ does not exist, create a new one. Both the environment variable and the value must be atoms. */ EOF sed -e "199r tmp" /Users/vsc/git/yap-6.3/pl/os.yap > x mv x /Users/vsc/git/yap-6.3/pl/os.yap #false cat << "EOF" > tmp /** @pred unix(+ _S_) Access to Unix-like functionality: + argv/1 Return a list of arguments to the program. These are the arguments that follow a `--`, as in the usual Unix convention. + cd/0 Change to home directory. + cd/1 Change to given directory. Acceptable directory names are strings or atoms. + environ/2 If the first argument is an atom, unify the second argument with the value of the corresponding environment variable. + getcwd/1 Unify the first argument with an atom representing the current directory. + putenv/2 Set environment variable _E_ to the value _S_. If the environment variable _E_ does not exist, create a new one. Both the environment variable and the value must be atoms. + shell/1 Execute command under current shell. Acceptable commands are strings or atoms. + system/1 Execute command with `/bin/sh`. Acceptable commands are strings or atoms. + shell/0 Execute a new shell. */ EOF sed -e "140r tmp" /Users/vsc/git/yap-6.3/pl/os.yap > x mv x /Users/vsc/git/yap-6.3/pl/os.yap #false cat << "EOF" > tmp /** @pred pwd Prints the current directory. */ EOF sed -e "102r tmp" /Users/vsc/git/yap-6.3/pl/os.yap > x mv x /Users/vsc/git/yap-6.3/pl/os.yap #false cat << "EOF" > tmp /** @pred ls Prints a list of all files in the current directory. */ EOF sed -e "70r tmp" /Users/vsc/git/yap-6.3/pl/os.yap > x mv x /Users/vsc/git/yap-6.3/pl/os.yap #false cat << "EOF" > tmp /** @pred getcwd(- _D_) Unify the current directory, represented as an atom, with the argument _D_. */ EOF sed -e "61r tmp" /Users/vsc/git/yap-6.3/pl/os.yap > x mv x /Users/vsc/git/yap-6.3/pl/os.yap #false cat << "EOF" > tmp /** @pred cd(+ _D_) Changes the current directory (on UNIX environments). */ EOF sed -e "49r tmp" /Users/vsc/git/yap-6.3/pl/os.yap > x mv x /Users/vsc/git/yap-6.3/pl/os.yap #false cat << "EOF" > tmp /** @pred cd Changes the current directory (on UNIX environments) to the user's home directory. */ EOF sed -e "39r tmp" /Users/vsc/git/yap-6.3/pl/os.yap > x mv x /Users/vsc/git/yap-6.3/pl/os.yap #false cat << "EOF" > tmp /** @pred dynamic( + _P_ ) Declares predicate _P_ or list of predicates [ _P1_,..., _Pn_] as a dynamic predicate. _P_ must be written as a predicate indicator, that is in form _Name/Arity_ or _Module:Name/Arity_. ~~~~~ :- dynamic god/1. ~~~~~ a more convenient form can be used: ~~~~~ :- dynamic son/3, father/2, mother/2. ~~~~~ or, equivalently, ~~~~~ :- dynamic [son/3, father/2, mother/2]. ~~~~~ Note: a predicate is assumed to be dynamic when asserted before being defined. */ EOF sed -e "72r tmp" /Users/vsc/git/yap-6.3/pl/preddecls.yap > x mv x /Users/vsc/git/yap-6.3/pl/preddecls.yap #false cat << "EOF" > tmp /** @pred compile_predicates(: _ListOfNameArity_) Compile a list of specified dynamic predicates (see dynamic/1 and assert/1 into normal static predicates. This call tells the Prolog environment the definition will not change anymore and further calls to assert/1 or retract/1 on the named predicates raise a permission error. This predicate is designed to deal with parts of the program that is generated at runtime but does not change during the remainder of the program execution. */ EOF sed -e "1257r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred current_key(? _A_,? _K_) Defines the relation: _K_ is a currently defined database key whose name is the atom _A_. It can be used to generate all the keys for the internal data-base. */ EOF sed -e "1231r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred current_predicate( _F_) is iso _F_ is the predicate indicator for a currently defined user or library predicate. _F_ is of the form _Na/Ar_, where the atom _Na_ is the name of the predicate, and _Ar_ its arity. */ EOF sed -e "1208r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred system_predicate( _A_, _P_) Defines the relation: _P_ is a built-in predicate whose name is the atom _A_. */ EOF sed -e "1182r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred current_predicate( _A_, _P_) Defines the relation: _P_ is a currently defined predicate whose name is the atom _A_. */ EOF sed -e "1168r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred predicate_erased_statistics( _P_, _NCls_, _Sz_, _IndexSz_) Given predicate _P_, _NCls_ is the number of erased clauses for _P_ that could not be discarded yet, _Sz_ is the amount of space taken to store those clauses (in bytes), and _IndexSz_ is the amount of space required to store indices to those clauses (in bytes). */ EOF sed -e "1154r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred predicate_statistics( _P_, _NCls_, _Sz_, _IndexSz_) Given predicate _P_, _NCls_ is the number of clauses for _P_, _Sz_ is the amount of space taken to store those clauses (in bytes), and _IndexSz_ is the amount of space required to store indices to those clauses (in bytes). */ EOF sed -e "1122r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred predicate_property( _P_, _Prop_) is iso For the predicates obeying the specification _P_ unify _Prop_ with a property of _P_. These properties may be: + `built_in ` true for built-in predicates, + `dynamic` true if the predicate is dynamic + `static ` true if the predicate is static + `meta_predicate( _M_) ` true if the predicate has a meta_predicate declaration _M_. + `multifile ` true if the predicate was declared to be multifile + `imported_from( _Mod_) ` true if the predicate was imported from module _Mod_. + `exported ` true if the predicate is exported in the current module. + `public` true if the predicate is public; note that all dynamic predicates are public. + `tabled ` true if the predicate is tabled; note that only static predicates can be tabled in YAP. + `source (predicate_property flag) ` true if source for the predicate is available. + `number_of_clauses( _ClauseCount_) ` Number of clauses in the predicate definition. Always one if external or built-in. */ EOF sed -e "1046r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred dynamic_predicate(+ _P_,+ _Semantics_) Declares predicate _P_ or list of predicates [ _P1_,..., _Pn_] as a dynamic predicate following either `logical` or `immediate` semantics. */ EOF sed -e "924r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred abolish(+ _PredSpec_) is iso Deletes the predicate given by _PredSpec_ from the database. If _PredSpec_ is an unbound variable, delete all predicates for the current module. The specification must include the name and arity, and it may include module information. Under iso language mode this built-in will only abolish dynamic procedures. Under other modes it will abolish any procedures. */ EOF sed -e "750r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred abolish(+ _P_,+ _N_) Deletes the predicate with name _P_ and arity _N_. It will remove both static and dynamic predicates. */ EOF sed -e "721r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred retractall(+ _G_) is iso Retract all the clauses whose head matches the goal _G_. Goal _G_ must be a call to a dynamic predicate. */ EOF sed -e "659r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred retract(+ _C_,- _R_) Erases from the program the clause _C_ whose database reference is _R_. The predicate must be dynamic. */ EOF sed -e "621r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred retract(+ _C_) is iso Erases the first clause in the program that matches _C_. This predicate may also be used for the static predicates that have been compiled when the source mode was `on`. For more information on source/0 ( (see Setting the Compiler)). */ EOF sed -e "575r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred nth_clause(+ _H_, _I_,- _R_) Find the _I_th clause in the predicate defining _H_, and give a reference to the clause. Alternatively, if the reference _R_ is given the head _H_ is unified with a description of the predicate and _I_ is bound to its position. The following predicates can only be used for dynamic predicates: */ EOF sed -e "552r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred clause(+ _H_, _B_,- _R_) The same as clause/2, plus _R_ is unified with the reference to the clause in the database. You can use instance/2 to access the reference's value. Note that you may not use erase/1 on the reference on static procedures. */ EOF sed -e "471r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred clause(+ _H_, _B_) is iso A clause whose head matches _H_ is searched for in the program. Its head and body are respectively unified with _H_ and _B_. If the clause is a unit clause, _B_ is unified with _true_. This predicate is applicable to static procedures compiled with `source` active, and to all dynamic procedures. */ EOF sed -e "456r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred assert(+ _C_,- _R_) The same as `assert(C)` ( (see Modifying the Database)) but unifies _R_ with the database reference that identifies the new clause, in a one-to-one way. Note that `asserta/2` only works for dynamic predicates. If the predicate is undefined, it will automatically be declared dynamic. */ EOF sed -e "437r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred assertz(+ _C_,- _R_) The same as `assertz(C)` but unifying _R_ with the database reference that identifies the new clause, in a one-to-one way. Note that `asserta/2` only works for dynamic predicates. If the predicate is undefined, it will automatically be declared dynamic. */ EOF sed -e "421r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred asserta(+ _C_,- _R_) The same as `asserta(C)` but unifying _R_ with the database reference that identifies the new clause, in a one-to-one way. Note that `asserta/2` only works for dynamic predicates. If the predicate is undefined, it will automatically be declared dynamic. */ EOF sed -e "405r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred assertz_static(: _C_) Adds clause _C_ to the end of a static procedure. Asserting a static clause for a predicate while choice-points for the predicate are available has undefined results. The following predicates can be used for dynamic predicates and for static predicates, if source mode was on when they were compiled: */ EOF sed -e "299r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred asserta_static(: _C_) Adds clause _C_ to the beginning of a static procedure. */ EOF sed -e "275r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred assert_static(: _C_) Adds clause _C_ to a static procedure. Asserting a static clause for a predicate while choice-points for the predicate are available has undefined results. */ EOF sed -e "262r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred assert(+ _C_) Same as assertz/1. Adds clause _C_ to the program. If the predicate is undefined, declare it as dynamic. New code should use assertz/1 for better portability. Most Prolog systems only allow asserting clauses for dynamic predicates. This is also as specified in the ISO standard. YAP allows asserting clauses for static predicates, as long as the predicate is not in use and the language flag is cprolog. Note that this feature is deprecated, if you want to assert clauses for static procedures you should use assert_static/1. */ EOF sed -e "154r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred assertz(+ _C_) is iso Adds clause _C_ to the end of the program. If the predicate is undefined, declare it as dynamic. Most Prolog systems only allow asserting clauses for dynamic predicates. This is also as specified in the ISO standard. YAP allows asserting clauses for static predicates. The current version of YAP supports this feature, but this feature is deprecated and support may go away in future versions. */ EOF sed -e "133r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred asserta(+ _C_) is iso Adds clause _C_ to the beginning of the program. If the predicate is undefined, declare it as dynamic. */ EOF sed -e "113r tmp" /Users/vsc/git/yap-6.3/pl/preds.yap > x mv x /Users/vsc/git/yap-6.3/pl/preds.yap #false cat << "EOF" > tmp /** @pred showprofres( _N_) Show profiling info for the top-most _N_ predicates. The showprofres/0 and `showprofres/1` predicates call a user-defined multifile hook predicate, `user:prolog_predicate_name/2`, that can be used for converting a possibly explicitly-qualified callable term into an atom that will used when printing the profiling information. */ EOF sed -e "164r tmp" /Users/vsc/git/yap-6.3/pl/profile.yap > x mv x /Users/vsc/git/yap-6.3/pl/profile.yap #false cat << "EOF" > tmp /** @pred showprofres Show profiling info. */ EOF sed -e "151r tmp" /Users/vsc/git/yap-6.3/pl/profile.yap > x mv x /Users/vsc/git/yap-6.3/pl/profile.yap #false cat << "EOF" > tmp /** @pred profile_data(? _Na/Ar_, ? _Parameter_, - _Data_) Give current profile data on _Parameter_ for a predicate described by the predicate indicator _Na/Ar_. If any of _Na/Ar_ or _Parameter_ are unbound, backtrack through all profiled predicates or stored parameters. Current parameters are: + calls Number of times a procedure was called. + retries Number of times a call to the procedure was backtracked to and retried. + profile_reset Reset all profiling information. */ EOF sed -e "102r tmp" /Users/vsc/git/yap-6.3/pl/profile.yap > x mv x /Users/vsc/git/yap-6.3/pl/profile.yap #false cat << "EOF" > tmp /** @pred on_signal(+ _Signal_,? _OldAction_,+ _Callable_) Set the interrupt handler for soft interrupt _Signal_ to be _Callable_. _OldAction_ is unified with the previous handler. Only a subset of the software interrupts (signals) can have their handlers manipulated through on_signal/3. Their POSIX names, YAP names and default behavior is given below. The "YAP name" of the signal is the atom that is associated with each signal, and should be used as the first argument to on_signal/3. It is chosen so that it matches the signal's POSIX name. on_signal/3 succeeds, unless when called with an invalid signal name or one that is not supported on this platform. No checks are made on the handler provided by the user. + sig_up (Hangup) SIGHUP in Unix/Linux; Reconsult the initialization files ~/.yaprc, ~/.prologrc and ~/prolog.ini. + sig_usr1 and sig_usr2 (User signals) SIGUSR1 and SIGUSR2 in Unix/Linux; Print a message and halt. A special case is made, where if _Callable_ is bound to `default`, then the default handler is restored for that signal. A call in the form `on_signal( _S_, _H_, _H_)` can be used to retrieve a signal's current handler without changing it. It must be noted that although a signal can be received at all times, the handler is not executed while YAP is waiting for a query at the prompt. The signal will be, however, registered and dealt with as soon as the user makes a query. Please also note, that neither POSIX Operating Systems nor YAP guarantee that the order of delivery and handling is going to correspond with the order of dispatch. */ EOF sed -e "147r tmp" /Users/vsc/git/yap-6.3/pl/signals.yap > x mv x /Users/vsc/git/yap-6.3/pl/signals.yap #true cat << "EOF" > tmp /** @pred alarm(+ _Seconds_,+ _Callable_,+ _OldAlarm_) Arranges for YAP to be interrupted in _Seconds_ seconds, or in [ _Seconds_| _MicroSeconds_]. When interrupted, YAP will execute _Callable_ and then return to the previous execution. If _Seconds_ is `0`, no new alarm is scheduled. In any event, any previously set alarm is canceled. The variable _OldAlarm_ unifies with the number of seconds remaining until any previously scheduled alarm was due to be delivered, or with `0` if there was no previously scheduled alarm. Note that execution of _Callable_ will wait if YAP is executing built-in predicates, such as Input/Output operations. The next example shows how _alarm/3_ can be used to implement a simple clock: ~~~~~ loop :- loop. ticker :- write('.'), flush_output, get_value(tick, yes), alarm(1,ticker,_). :- set_value(tick, yes), alarm(1,ticker,_), loop. ~~~~~ The clock, `ticker`, writes a dot and then checks the flag `tick` to see whether it can continue ticking. If so, it calls itself again. Note that there is no guarantee that the each dot corresponds a second: for instance, if the YAP is waiting for user input, `ticker` will wait until the user types the entry in. The next example shows how alarm/3 can be used to guarantee that a certain procedure does not take longer than a certain amount of time: ~~~~~ loop :- loop. :- catch((alarm(10, throw(ball), _),loop), ball, format('Quota exhausted.~n',[])). ~~~~~ In this case after `10` seconds our `loop` is interrupted, `ball` is thrown, and the handler writes `Quota exhausted`. Execution then continues from the handler. Note that in this case `loop/0` always executes until the alarm is sent. Often, the code you are executing succeeds or fails before the alarm is actually delivered. In this case, you probably want to disable the alarm when you leave the procedure. The next procedure does exactly so: ~~~~~ once_with_alarm(Time,Goal,DoOnAlarm) :- catch(execute_once_with_alarm(Time, Goal), alarm, DoOnAlarm). execute_once_with_alarm(Time, Goal) :- alarm(Time, alarm, _), ( call(Goal) -> alarm(0, alarm, _) ; alarm(0, alarm, _), fail). ~~~~~ The procedure `once_with_alarm/3` has three arguments: the _Time_ to wait before the alarm is sent; the _Goal_ to execute; and the goal _DoOnAlarm_ to execute if the alarm is sent. It uses catch/3 to handle the case the `alarm` is sent. Then it starts the alarm, calls the goal _Goal_, and disables the alarm on success or failure. */ EOF sed -e "147r tmp" /Users/vsc/git/yap-6.3/pl/signals.yap > x mv x /Users/vsc/git/yap-6.3/pl/signals.yap #false cat << "EOF" > tmp /** @pred predsort(+ _Pred_, + _List_, - _Sorted_) Sorts similar to sort/2, but determines the order of two terms by calling _Pred_(- _Delta_, + _E1_, + _E2_) . This call must unify _Delta_ with one of `<`, `>` or `=`. If built-in predicate compare/3 is used, the result is the same as sort/2. */ EOF sed -e "172r tmp" /Users/vsc/git/yap-6.3/pl/sort.yap > x mv x /Users/vsc/git/yap-6.3/pl/sort.yap #false cat << "EOF" > tmp /** @pred keysort(+ _L_, _S_) is iso Assuming L is a list of the form ` _Key_- _Value_`, `keysort(+ _L_, _S_)` unifies _S_ with the list obtained from _L_, by sorting its elements according to the value of _Key_. ~~~~~{.prolog} ?- keysort([3-a,1-b,2-c,1-a,1-b],S). ~~~~~ would return: ~~~~~{.prolog} S = [1-b,1-a,1-b,2-c,3-a] ~~~~~ */ EOF sed -e "134r tmp" /Users/vsc/git/yap-6.3/pl/sort.yap > x mv x /Users/vsc/git/yap-6.3/pl/sort.yap #false cat << "EOF" > tmp /** @pred sort(+ _L_,- _S_) is iso Unifies _S_ with the list obtained by sorting _L_ and merging identical (in the sense of `==`) elements. */ EOF sed -e "88r tmp" /Users/vsc/git/yap-6.3/pl/sort.yap > x mv x /Users/vsc/git/yap-6.3/pl/sort.yap #false cat << "EOF" > tmp /** @pred length(? _L_,? _S_) Unify the well-defined list _L_ with its length. The procedure can be used to find the length of a pre-defined list, or to build a list of length _S_. */ EOF sed -e "52r tmp" /Users/vsc/git/yap-6.3/pl/sort.yap > x mv x /Users/vsc/git/yap-6.3/pl/sort.yap #true cat << "EOF" > tmp /** @pred time(: _Goal_) Prints the CPU time and the wall time for the execution of _Goal_. Possible choice-points of _Goal_ are removed. Based on the SWI-Prolog definition (minus reporting the number of inferences, which YAP currently does not support). */ EOF sed -e "328r tmp" /Users/vsc/git/yap-6.3/pl/statistics.yap > x mv x /Users/vsc/git/yap-6.3/pl/statistics.yap #true cat << "EOF" > tmp /** @pred key_statistics(+ _K_,- _Entries_,- _TotalSize_) Returns several statistics for a key _K_. Currently, it says how many entries we have for that key, _Entries_, what is the total size spent on this key. */ EOF sed -e "307r tmp" /Users/vsc/git/yap-6.3/pl/statistics.yap > x mv x /Users/vsc/git/yap-6.3/pl/statistics.yap #true cat << "EOF" > tmp /** @pred statistics(? _Param_,- _Info_) Gives statistical information on the system parameter given by first argument: + atoms `[ _NumberOfAtoms_, _SpaceUsedBy Atoms_]` This gives the total number of atoms `NumberOfAtoms` and how much space they require in bytes, _SpaceUsedBy Atoms_. + cputime `[ _Time since Boot_, _Time From Last Call to Cputime_]` This gives the total cputime in milliseconds spent executing Prolog code, garbage collection and stack shifts time included. + dynamic_code `[ _Clause Size_, _Index Size_, _Tree Index Size_, _Choice Point Instructions Size_, _Expansion Nodes Size_, _Index Switch Size_]` Size of static code in YAP in bytes: _Clause Size_, the number of bytes allocated for clauses, plus _Index Size_, the number of bytes spent in the indexing code. The indexing code is divided into main tree, _Tree Index Size_, tables that implement choice-point manipulation, _Choice xsPoint Instructions Size_, tables that cache clauses for future expansion of the index tree, _Expansion Nodes Size_, and tables such as hash tables that select according to value, _Index Switch Size_. + garbage_collection `[ _Number of GCs_, _Total Global Recovered_, _Total Time Spent_]` Number of garbage collections, amount of space recovered in kbytes, and total time spent doing garbage collection in milliseconds. More detailed information is available using `yap_flag(gc_trace,verbose)`. + global_stack `[ _Global Stack Used_, _Execution Stack Free_]` Space in kbytes currently used in the global stack, and space available for expansion by the local and global stacks. + local_stack `[ _Local Stack Used_, _Execution Stack Free_]` Space in kbytes currently used in the local stack, and space available for expansion by the local and global stacks. + heap `[ _Heap Used_, _Heap Free_]` Total space in kbytes not recoverable in backtracking. It includes the program code, internal data base, and, atom symbol table. + program `[ _Program Space Used_, _Program Space Free_]` Equivalent to heap. + runtime `[ _Time since Boot_, _Time From Last Call to Runtime_]` This gives the total cputime in milliseconds spent executing Prolog code, not including garbage collections and stack shifts. Note that until YAP4.1.2 the runtime statistics would return time spent on garbage collection and stack shifting. + stack_shifts `[ _Number of Heap Shifts_, _Number of Stack Shifts_, _Number of Trail Shifts_]` Number of times YAP had to expand the heap, the stacks, or the trail. More detailed information is available using `yap_flag(gc_trace,verbose)`. + static_code `[ _Clause Size_, _Index Size_, _Tree Index Size_, _Expansion Nodes Size_, _Index Switch Size_]` Size of static code in YAP in bytes: _Clause Size_, the number of bytes allocated for clauses, plus _Index Size_, the number of bytes spent in the indexing code. The indexing code is divided into a main tree, _Tree Index Size_, table that cache clauses for future expansion of the index tree, _Expansion Nodes Size_, and and tables such as hash tables that select according to value, _Index Switch Size_. + trail `[ _Trail Used_, _Trail Free_]` Space in kbytes currently being used and still available for the trail. + walltime `[ _Time since Boot_, _Time From Last Call to Walltime_]` This gives the clock time in milliseconds since starting Prolog. */ EOF sed -e "256r tmp" /Users/vsc/git/yap-6.3/pl/statistics.yap > x mv x /Users/vsc/git/yap-6.3/pl/statistics.yap #true cat << "EOF" > tmp /** @pred statistics/0 Send to the current user error stream general information on space used and time spent by the system. ~~~~~ ?- statistics. memory (total) 4784124 bytes program space 3055616 bytes: 1392224 in use, 1663392 free 2228132 max stack space 1531904 bytes: 464 in use, 1531440 free global stack: 96 in use, 616684 max local stack: 368 in use, 546208 max trail stack 196604 bytes: 8 in use, 196596 free 0.010 sec. for 5 code, 2 stack, and 1 trail space overflows 0.130 sec. for 3 garbage collections which collected 421000 bytes 0.000 sec. for 0 atom garbage collections which collected 0 bytes 0.880 sec. runtime 1.020 sec. cputime 25.055 sec. elapsed time ~~~~~ The example shows how much memory the system spends. Memory is divided into Program Space, Stack Space and Trail. In the example we have 3MB allocated for program spaces, with less than half being actually used. YAP also shows the maximum amount of heap space having been used which was over 2MB. The stack space is divided into two stacks which grow against each other. We are in the top level so very little stack is being used. On the other hand, the system did use a lot of global and local stack during the previous execution (we refer the reader to a WAM tutorial in order to understand what are the global and local stacks). YAP also shows information on how many memory overflows and garbage collections the system executed, and statistics on total execution time. Cputime includes all running time, runtime excludes garbage collection and stack overflow time. */ EOF sed -e "68r tmp" /Users/vsc/git/yap-6.3/pl/statistics.yap > x mv x /Users/vsc/git/yap-6.3/pl/statistics.yap #true cat << "EOF" > tmp /** @pred reverse(+ _List_, ? _Reversed_) True when _List_ and _Reversed_ are lists with the same elements but in opposite orders. */ EOF sed -e "81r tmp" /Users/vsc/git/yap-6.3/pl/swi.yap > x mv x /Users/vsc/git/yap-6.3/pl/swi.yap #false cat << "EOF" > tmp /** @pred tabling_statistics/0 Prints statistics on space used by all tables. */ EOF sed -e "214r tmp" /Users/vsc/git/yap-6.3/pl/tabling.yap > x mv x /Users/vsc/git/yap-6.3/pl/tabling.yap #false cat << "EOF" > tmp /** @pred tabling_mode(+ _P_,? _Mode_) Sets or reads the default tabling mode for a tabled predicate _P_ (or a list of predicates _P1_,..., _Pn_ or [ _P1_,..., _Pn_]). The list of _Mode_ options includes: + `batched` Defines that, by default, batched scheduling is the scheduling strategy to be used to evaluated calls to predicate _P_. + `local` Defines that, by default, local scheduling is the scheduling strategy to be used to evaluated calls to predicate _P_. + `exec_answers` Defines that, by default, when a call to predicate _P_ is already evaluated (completed), answers are obtained by executing compiled WAM-like code directly from the trie data structure. This reduces the loading time when backtracking, but the order in which answers are obtained is undefined. + `load_answers` Defines that, by default, when a call to predicate _P_ is already evaluated (completed), answers are obtained (as a consumer) by loading them from the trie data structure. This guarantees that answers are obtained in the same order as they were found. Somewhat less efficient but creates less choice-points. The default tabling mode for a new tabled predicate is `batched` and `exec_answers`. To set the tabling mode for all predicates at once you can use the yap_flag/2 predicate as described next. */ EOF sed -e "165r tmp" /Users/vsc/git/yap-6.3/pl/tabling.yap > x mv x /Users/vsc/git/yap-6.3/pl/tabling.yap #false cat << "EOF" > tmp /** @pred table_statistics(+ _P_) Prints table statistics (subgoals and answers) for predicate _P_ (or a list of predicates _P1_,..., _Pn_ or [ _P1_,..., _Pn_]). */ EOF sed -e "165r tmp" /Users/vsc/git/yap-6.3/pl/tabling.yap > x mv x /Users/vsc/git/yap-6.3/pl/tabling.yap #false cat << "EOF" > tmp /** @pred table( + _P_ ) Declares predicate _P_ (or a list of predicates _P1_,..., _Pn_ or [ _P1_,..., _Pn_]) as a tabled predicate. _P_ must be written in the form _name/arity_. Examples: ~~~~~ :- table son/3. :- table father/2. :- table mother/2. ~~~~~ or ~~~~~ :- table son/3, father/2, mother/2. ~~~~~ or ~~~~~ :- table [son/3, father/2, mother/2]. ~~~~~ */ EOF sed -e "165r tmp" /Users/vsc/git/yap-6.3/pl/tabling.yap > x mv x /Users/vsc/git/yap-6.3/pl/tabling.yap #false cat << "EOF" > tmp /** @pred show_table(+ _P_) Prints table contents (subgoals and answers) for predicate _P_ (or a list of predicates _P1_,..., _Pn_ or [ _P1_,..., _Pn_]). */ EOF sed -e "165r tmp" /Users/vsc/git/yap-6.3/pl/tabling.yap > x mv x /Users/vsc/git/yap-6.3/pl/tabling.yap #false cat << "EOF" > tmp /** @pred is_tabled(+ _P_) Succeeds if the predicate _P_ (or a list of predicates _P1_,..., _Pn_ or [ _P1_,..., _Pn_]), of the form _name/arity_, is a tabled predicate. */ EOF sed -e "165r tmp" /Users/vsc/git/yap-6.3/pl/tabling.yap > x mv x /Users/vsc/git/yap-6.3/pl/tabling.yap #false cat << "EOF" > tmp /** @pred abolish_table(+ _P_) Removes all the entries from the table space for predicate _P_ (or a list of predicates _P1_,..., _Pn_ or [ _P1_,..., _Pn_]). The predicate remains as a tabled predicate. */ EOF sed -e "165r tmp" /Users/vsc/git/yap-6.3/pl/tabling.yap > x mv x /Users/vsc/git/yap-6.3/pl/tabling.yap #false cat << "EOF" > tmp /** @pred thread_local( _+Functor/Arity_) related to the dynamic/1 directive. It tells the system that the predicate may be modified using assert/1, retract/1, etc, during execution of the program. Unlike normal shared dynamic data however each thread has its own clause-list for the predicate. As a thread starts, this clause list is empty. If there are still clauses as the thread terminates these are automatically reclaimed by the system. The `thread_local` property implies the property `dynamic`. Thread-local dynamic predicates are intended for maintaining thread-specific state or intermediate results of a computation. It is not recommended to put clauses for a thread-local predicate into a file as in the example below as the clause is only visible from the thread that loaded the source-file. All other threads start with an empty clause-list. ~~~~~ :- thread_local foo/1. foo(gnat). ~~~~~ */ EOF sed -e "1357r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_sleep(+ _Time_) Make current thread sleep for _Time_ seconds. _Time_ may be an integer or a floating point number. When time is zero or a negative value the call succeeds and returns immediately. This call should not be used if alarms are also being used. */ EOF sed -e "1266r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_peek_message(+ _Queue_, ? _Term_) As thread_peek_message/1, operating on a given queue. It is allowed to peek into another thread's message queue, an operation that can be used to check whether a thread has swallowed a message sent to it. Explicit message queues are designed with the worker-pool model in mind, where multiple threads wait on a single queue and pick up the first goal to execute. Below is a simple implementation where the workers execute arbitrary Prolog goals. Note that this example provides no means to tell when all work is done. This must be realised using additional synchronisation. ~~~~~ % create_workers(+Id, +N) % % Create a pool with given Id and number of workers. create_workers(Id, N) :- message_queue_create(Id), forall(between(1, N, _), thread_create(do_work(Id), _, [])). do_work(Id) :- repeat, thread_get_message(Id, Goal), ( catch(Goal, E, print_message(error, E)) -> true ; print_message(error, goal_failed(Goal, worker(Id))) ), fail. % work(+Id, +Goal) % % Post work to be done by the pool work(Id, Goal) :- thread_send_message(Id, Goal). ~~~~~ */ EOF sed -e "1228r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_peek_message(? _Term_) Examines the thread message-queue and compares the queued terms with _Term_ until one unifies or the end of the queue has been reached. In the first case the call succeeds (possibly instantiating _Term_. If no term from the queue unifies this call fails. */ EOF sed -e "1180r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_get_message(+ _Queue_, ? _Term_) As thread_get_message/1, operating on a given queue. It is allowed to peek into another thread's message queue, an operation that can be used to check whether a thread has swallowed a message sent to it. */ EOF sed -e "1161r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_get_message(? _Term_) Examines the thread message-queue and if necessary blocks execution until a term that unifies to _Term_ arrives in the queue. After a term from the queue has been unified unified to _Term_, the term is deleted from the queue and this predicate returns. Please note that not-unifying messages remain in the queue. After the following has been executed, thread 1 has the term `gnu` in its queue and continues execution using _A_ is `gnat`. ~~~~~ thread_get_message(a(A)), thread_send_message(b(gnu)), thread_send_message(a(gnat)), ~~~~~ See also thread_peek_message/1. */ EOF sed -e "1149r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_send_message(+ _QueueOrThreadId_, + _Term_) Place _Term_ in the given queue or default queue of the indicated thread (which can even be the message queue of itself (see thread_self/1). Any term can be placed in a message queue, but note that the term is copied to the receiving thread and variable-bindings are thus lost. This call returns immediately. If more than one thread is waiting for messages on the given queue and at least one of these is waiting with a partially instantiated _Term_, the waiting threads are all sent a wakeup signal, starting a rush for the available messages in the queue. This behaviour can seriously harm performance with many threads waiting on the same queue as all-but-the-winner perform a useless scan of the queue. If there is only one waiting thread or all waiting threads wait with an unbound variable an arbitrary thread is restarted to scan the queue. */ EOF sed -e "1116r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred message_queue_destroy(+ _Queue_) Destroy a message queue created with message_queue_create/1. It is not allows to destroy the queue of a thread. Neither is it allowed to destroy a queue other threads are waiting for or, for anonymous message queues, may try to wait for later. */ EOF sed -e "1047r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred message_queue_create(? _Queue_) If _Queue_ is an atom, create a named queue. To avoid ambiguity on `thread_send_message/2`, the name of a queue may not be in use as a thread-name. If _Queue_ is unbound an anonymous queue is created and _Queue_ is unified to its identifier. */ EOF sed -e "1029r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred current_mutex(? _MutexId_, ? _ThreadId_, ? _Count_) Enumerates all existing mutexes. If the mutex is held by some thread, _ThreadId_ is unified with the identifier of the holding thread and _Count_ with the recursive count of the mutex. Otherwise, _ThreadId_ is `[]` and _Count_ is 0. */ EOF sed -e "945r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred mutex_unlock_all Unlock all mutexes held by the current thread. This call is especially useful to handle thread-termination using abort/0 or exceptions. See also thread_signal/2. */ EOF sed -e "916r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_statistics(+ _Id_, + _Key_, - _Value_) Obtains statistical information on thread _Id_ as `statistics/2` does in single-threaded applications. This call returns all keys of `statistics/2`, although only information statistics about the stacks and CPU time yield different values for each thread. + mutex_statistics Print usage statistics on internal mutexes and mutexes associated with dynamic predicates. For each mutex two numbers are printed: the number of times the mutex was acquired and the number of collisions: the number times the calling thread has to wait for the mutex. The collision-count is not available on Windows as this would break portability to Windows-95/98/ME or significantly harm performance. Generally collision count is close to zero on single-CPU hardware. + threads Prints a table of current threads and their status. */ EOF sed -e "807r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_property(? _Id_, ? _Property_) Enumerates the properties of the specified thread. Calling thread_property/2 does not influence any thread. See also thread_join/2. For threads that have an alias-name, this name can be used in _Id_ instead of the numerical thread identifier. _Property_ is one of: + status( _Status_) The thread status of a thread (see below). + alias( _Alias_) The thread alias, if it exists. + at_exit( _AtExit_) The thread exit hook, if defined (not available if the thread is already terminated). + detached( _Boolean_) The detached state of the thread. + stack( _Size_) The thread stack data-area size. + trail( _Size_) The thread trail data-area size. + system( _Size_) The thread system data-area size. */ EOF sed -e "673r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred current_thread(+ _Id_, - _Status_) Enumerates identifiers and status of all currently known threads. Calling current_thread/2 does not influence any thread. See also thread_join/2. For threads that have an alias-name, this name is returned in _Id_ instead of the numerical thread identifier. _Status_ is one of: + running The thread is running. This is the initial status of a thread. Please note that threads waiting for something are considered running too. + false The _Goal_ of the thread has been completed and failed. + true The _Goal_ of the thread has been completed and succeeded. + exited( _Term_) The _Goal_ of the thread has been terminated using thread_exit/1 with _Term_ as argument. If the underlying native thread has exited (using pthread_exit()) _Term_ is unbound. + exception( _Term_) The _Goal_ of the thread has been terminated due to an uncaught exception (see throw/1 and catch/3). */ EOF sed -e "624r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_exit(+ _Term_) Terminates the thread immediately, leaving `exited( _Term_)` as result-state for thread_join/2. If the thread has the attribute `detached` `true` it terminates, but its exit status cannot be retrieved using thread_join/2 making the value of _Term_ irrelevant. The Prolog stacks and C-thread are reclaimed. */ EOF sed -e "537r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_join(+ _Id_, - _Status_) Wait for the termination of thread with given _Id_. Then unify the result-status of the thread with _Status_. After this call, _Id_ becomes invalid and all resources associated with the thread are reclaimed. Note that threads with the attribute `detached` `true` cannot be joined. See also current_thread/2. A thread that has been completed without thread_join/2 being called on it is partly reclaimed: the Prolog stacks are released and the C-thread is destroyed. A small data-structure representing the exit-status of the thread is retained until thread_join/2 is called on the thread. Defined values for _Status_ are: + true The goal has been proven successfully. + false The goal has failed. + exception( _Term_) The thread is terminated on an exception. See print_message/2 to turn system exceptions into readable messages. + exited( _Term_) The thread is terminated on thread_exit/1 using the argument _Term_. + thread_detach(+ _Id_) Switch thread into detached-state (see `detached` option at thread_create/3 at runtime. _Id_ is the identifier of the thread placed in detached state. One of the possible applications is to simplify debugging. Threads that are created as `detached` leave no traces if they crash. For not-detached threads the status can be inspected using current_thread/2. Threads nobody is waiting for may be created normally and detach themselves just before completion. This way they leave no traces on normal completion and their reason for failure can be inspected. */ EOF sed -e "496r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #true cat << "EOF" > tmp /** @pred thread_self(- _Id_) Get the Prolog thread identifier of the running thread. If the thread has an alias, the alias-name is returned. */ EOF sed -e "441r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_signal(+ _ThreadId_, : _Goal_) Make thread _ThreadId_ execute _Goal_ at the first opportunity. In the current implementation, this implies at the first pass through the Call-port. The predicate thread_signal/2 itself places _Goal_ into the signalled-thread's signal queue and returns immediately. Signals (interrupts) do not cooperate well with the world of multi-threading, mainly because the status of mutexes cannot be guaranteed easily. At the call-port, the Prolog virtual machine holds no locks and therefore the asynchronous execution is safe. _Goal_ can be any valid Prolog goal, including throw/1 to make the receiving thread generate an exception and trace/0 to start tracing the receiving thread. */ EOF sed -e "85r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_create(: _Goal_, - _Id_) Create a new Prolog thread using default options. See thread_create/3. */ EOF sed -e "85r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_create(: _Goal_) Create a new Prolog detached thread using default options. See thread_create/3. */ EOF sed -e "85r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred thread_at_exit(: _Term_) Run _Goal_ just before releasing the thread resources. This is to be compared to `at_halt/1`, but only for the current thread. These hooks are ran regardless of why the execution of the thread has been completed. As these hooks are run, the return-code is already available through thread_property/2 using the result of thread_self/1 as thread-identifier. If you want to guarantee the execution of an exit hook no matter how the thread terminates (the thread can be aborted before reaching the thread_at_exit/1 call), consider using instead the `at_exit/1` option of thread_create/3. */ EOF sed -e "85r tmp" /Users/vsc/git/yap-6.3/pl/threads.yap > x mv x /Users/vsc/git/yap-6.3/pl/threads.yap #false cat << "EOF" > tmp /** @pred user:unknown_predicate_handler(+G,+M,?NG) The user may also define clauses for `user:unknown_predicate_handler/3` hook predicate. This user-defined procedure is called before any system processing for the undefined procedure, with the first argument _G_ set to the current goal, and the second _M_ set to the current module. The predicate _G_ will be called from within the user module. If `user:unknown_predicate_handler/3` succeeds, the system will execute _NG_. If `user:unknown_predicate_handler/3` fails, the system will execute default action as specified by unknown/2. */ EOF sed -e "105r tmp" /Users/vsc/git/yap-6.3/pl/undefined.yap > x mv x /Users/vsc/git/yap-6.3/pl/undefined.yap #false cat << "EOF" > tmp /** @pred unknown(- _O_,+ _N_) Specifies an handler to be called is a program tries to call an undefined static procedure _P_. The arity of _N_ may be zero or one. If the arity is `0`, the new action must be one of `fail`, `warning`, or `error`. If the arity is `1`, _P_ is an user-defined handler and at run-time, the argument to the handler _P_ will be unified with the undefined goal. Note that _N_ must be defined prior to calling unknown/2, and that the single argument to _N_ must be unbound. In YAP, the default action is to `fail` (note that in the ISO Prolog standard the default action is `error`). After defining `undefined/1` by: ~~~~~{.prolog} undefined(A) :- format('Undefined predicate: ~w~n',[A]), fail. ~~~~~ and executing the goal: ~~~~~{.prolog} unknown(U,undefined(X)). ~~~~~ a call to a predicate for which no clauses were defined will result in the output of a message of the form: ~~~~~{.prolog} Undefined predicate: user:xyz(A1,A2) ~~~~~ followed by the failure of that call. */ EOF sed -e "73r tmp" /Users/vsc/git/yap-6.3/pl/undefined.yap > x mv x /Users/vsc/git/yap-6.3/pl/undefined.yap #false cat << "EOF" > tmp /** @pred subsumes_term(? _Subsumer_, ? _Subsumed_) Succeed if _Submuser_ subsumes _Subsuned_ but does not bind any variable in _Subsumer_. */ EOF sed -e "403r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred nb_current(? _Name_,? _Value_) Enumerate all defined variables with their value. The order of enumeration is undefined. */ EOF sed -e "370r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred nb_current(? _Name_, ? _Value_) Enumerate all defined variables with their value. The order of enumeration is undefined. */ EOF sed -e "370r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred nth_instance(? _Key_,? _Index_, _T_,? _R_) Fetches the _Index_nth entry in the internal database under the key _Key_. Entries are numbered from one. If the key _Key_ or the _Index_ are bound, a reference is unified with _R_. Otherwise, the reference _R_ must be given, and YAP will find the matching key and index. */ EOF sed -e "346r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred nth_instance(? _Key_,? _Index_,? _R_) Fetches the _Index_nth entry in the internal database under the key _Key_. Entries are numbered from one. If the key _Key_ or the _Index_ are bound, a reference is unified with _R_. Otherwise, the reference _R_ must be given, and YAP will find the matching key and index. */ EOF sed -e "329r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #true cat << "EOF" > tmp /** @pred simple( _T_) Checks whether _T_ is unbound, an atom, or a number. */ EOF sed -e "314r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred callable( _T_) is iso Checks whether _T_ is a callable term, that is, an atom or a compound term. */ EOF sed -e "304r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred recordzifnot(+ _K_, _T_,- _R_) If a term equal to _T_ up to variable renaming is stored under key _K_ fail. Otherwise, make term _T_ the first record under key _K_ and unify _R_ with its reference. This predicate is YAP specific. */ EOF sed -e "288r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred recordaifnot(+ _K_, _T_,- _R_) If a term equal to _T_ up to variable renaming is stored under key _K_ fail. Otherwise, make term _T_ the first record under key _K_ and unify _R_ with its reference. */ EOF sed -e "269r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred current_op( _P_, _T_, _F_) is iso Defines the relation: _P_ is a currently defined operator of type _T_ and precedence _P_. */ EOF sed -e "169r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred op(+ _P_,+ _T_,+ _A_) is iso Defines the operator _A_ or the list of operators _A_ with type _T_ (which must be one of `xfx`, `xfy`,`yfx`, `xf`, `yf`, `fx` or `fy`) and precedence _P_ (see appendix iv for a list of predefined operators). Note that if there is a preexisting operator with the same name and type, this operator will be discarded. Also, `,` may not be defined as an operator, and it is not allowed to have the same for an infix and a postfix operator. */ EOF sed -e "49r tmp" /Users/vsc/git/yap-6.3/pl/utils.yap > x mv x /Users/vsc/git/yap-6.3/pl/utils.yap #false cat << "EOF" > tmp /** @pred stream_position_data(+ _Field_,+ _StreamPosition_,- _Info_) Given the packaged stream position term _StreamPosition_, unify _Info_ with _Field_ `line_count`, `byte_count`, or `char_count`. */ EOF sed -e "550r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #true cat << "EOF" > tmp /** @pred current_stream( _F_, _M_, _S_) Defines the relation: The stream _S_ is opened on the file _F_ in mode _M_. It might be used to obtain all open streams (by backtracking) or to access the stream for a file _F_ in mode _M_, or to find properties for a stream _S_. Notice that some streams might not be associated to a file: in this case YAP tries to return the file number. If that is not available, YAP unifies _F_ with _S_. */ EOF sed -e "489r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred current_char_conversion(? _IN_,? _OUT_) is iso If _IN_ is unbound give all current character translations. Otherwise, give the translation for _IN_, if one exists. */ EOF sed -e "463r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred stream_position(+ _Stream_,- _StreamPosition_) Unify _StreamPosition_ with the packaged information of position on current stream _Stream_. Use stream_position_data/3 to retrieve information on character or line count. */ EOF sed -e "423r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred current_line_number(+ _Stream_,- _LineNumber_) Unify _LineNumber_ with the line number for the _Stream_. */ EOF sed -e "413r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred ttynl Outputs a new line to stream user_output. */ EOF sed -e "392r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred ttyput(+ _N_) As `put(N)` but always to user_output. */ EOF sed -e "384r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred ttyskip(- _C_) Like skip/1, but always using stream user_input. stream. */ EOF sed -e "375r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred ttyget0(- _C_) The same as `get0(C)`, but from stream user_input. */ EOF sed -e "365r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred ttyget(- _C_) The same as `get(C)`, but from stream user_input. */ EOF sed -e "356r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred format(+ _T_) Print formatted output to the current output stream. */ EOF sed -e "339r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred display(+ _S_, _T_) Like display/1, but using stream _S_ to display the term. */ EOF sed -e "318r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #true cat << "EOF" > tmp /** @pred display(+ _T_) Displays term _T_ on the current output stream. All Prolog terms are written in standard parenthesized prefix notation. */ EOF sed -e "308r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred read(+ _S_,- _T_) is iso Reads term _T_ from the stream _S_ instead of from the current input stream. */ EOF sed -e "283r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred read(- _T_) is iso Reads the next term from the current input stream, and unifies it with _T_. The term must be followed by a dot (`.`) and any blank-character as previously defined. The syntax of the term must match the current declarations for operators (see op). If the end-of-stream is reached, _T_ is unified with the atom `end_of_file`. Further reads from of the same stream may cause an error failure (see open/3). */ EOF sed -e "273r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred exists(+ _F_) Checks if file _F_ exists in the current directory. */ EOF sed -e "255r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred nofileerrors Switches off the file_errors flag, so that the predicates see/1, tell/1, open/3 and close/1 just fail, instead of producing an error message and aborting whenever the specified file cannot be opened or closed. */ EOF sed -e "248r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred fileerrors Switches on the file_errors flag so that in certain error conditions Input/Output predicates will produce an appropriated message and abort. */ EOF sed -e "238r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred socket_connect(+ _SOCKET_, + _PORT_, - _STREAM_) Interface to system call `connect`, used for clients: connect socket _SOCKET_ to _PORT_. The connection results in the read/write stream _STREAM_. Port information depends on the domain: + 'AF_UNIX'(+ _FILENAME_) + 'AF_FILE'(+ _FILENAME_) connect to socket at file _FILENAME_. + 'AF_INET'(+ _HOST_,+ _PORT_) Connect to socket at host _HOST_ and port _PORT_. */ EOF sed -e "201r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred socket(+ _DOMAIN_,+ _TYPE_,+ _PROTOCOL_,- _SOCKET_) Corresponds to the BSD system call `socket`. Create a socket for domain _DOMAIN_ of type _TYPE_ and protocol _PROTOCOL_. Both _DOMAIN_ and _TYPE_ should be atoms, whereas _PROTOCOL_ must be an integer. The new socket object is accessible through a descriptor bound to the variable _SOCKET_. The current implementation of YAP accepts socket domains `AF_INET` and `AF_UNIX`. Socket types depend on the underlying operating system, but at least the following types are supported: `SOCK_STREAM'` and `SOCK_DGRAM'` (untested in 6.3). */ EOF sed -e "171r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred socket(+ _DOMAIN_,- _SOCKET_) Call socket/4 with _TYPE_ bound to `SOCK_STREAM'` and _PROTOCOL_ bound to `0`. */ EOF sed -e "144r tmp" /Users/vsc/git/yap-6.3/pl/yio.yap > x mv x /Users/vsc/git/yap-6.3/pl/yio.yap #false cat << "EOF" > tmp /** @pred free_variables(:Generator, + _Template_, +VarList0, -VarList) is det In order to handle variables properly, we have to find all the universally quantified variables in the Generator. All variables as yet unbound are universally quantified, unless + they occur in the template + they are bound by X/\P, setof, or bagof `free_variables(Generator, Template, OldList, NewList)` finds this set, using OldList as an accumulator. The original author of this code was Richard O'Keefe. Jan Wielemaker made some SWI-Prolog enhancements, sponsored by SecuritEase, http://www.securitease.com. The code is public domain (from DEC10 library). */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/aggregate.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/aggregate.pl #false cat << "EOF" > tmp /** @pred aggregate_all(+ _Template_, : _Goal_, - _Result_) is semidet Aggregate bindings in _Goal_ according to _Template_. The aggregate_all/3 version performs findall/3 on _Goal_. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/aggregate.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/aggregate.pl #false cat << "EOF" > tmp /** @pred aggregate_all(+ _Template_, + _Discriminator_, : _Goal_, - _Result_) is semidet Aggregate bindings in _Goal_ according to _Template_. The aggregate_all/3 version performs findall/3 followed by sort/2 on _Goal_. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/aggregate.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/aggregate.pl #false cat << "EOF" > tmp /** @pred read_stream_to_codes(+ _Stream_, - _Codes_, ? _Tail_) Difference-list version of read_stream_to_codes/2. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/readutil.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/readutil.pl #false cat << "EOF" > tmp /** @pred read_stream_to_codes(+ _Stream_, - _Codes_) Read all input until end-of-file and unify the result to _Codes_. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/readutil.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/readutil.pl #false cat << "EOF" > tmp /** @pred read_line_to_codes(+ _Stream_, - _Codes_, ? _Tail_) Difference-list version to read an input line to a list of character codes. Reading stops at the newline or end-of-file character, but unlike read_line_to_codes/2, the newline is retained in the output. This predicate is especially useful for reading a block of lines upto some delimiter. The following example reads an HTTP header ended by a blank line: ~~~~~ read_header_data(Stream, Header) :- read_line_to_codes(Stream, Header, Tail), read_header_data(Header, Stream, Tail). read_header_data("\r\n", _, _) :- !. read_header_data("\n", _, _) :- !. read_header_data("", _, _) :- !. read_header_data(_, Stream, Tail) :- read_line_to_codes(Stream, Tail, NewTail), read_header_data(Tail, Stream, NewTail). ~~~~~ */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/readutil.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/readutil.pl #false cat << "EOF" > tmp /** @pred read_line_to_codes(+ _Stream_, - _Codes_) Read the next line of input from _Stream_ and unify the result with _Codes_ after the line has been read. A line is ended by a newline character or end-of-file. Unlike `read_line_to_codes/3`, this predicate removes trailing newline character. On end-of-file the atom `end_of_file` is returned. See also `at_end_of_stream/[0,1]`. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/readutil.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/readutil.pl #false cat << "EOF" > tmp /** @pred read_file_to_terms(+ _Spec_, - _Terms_, + _Options_) Read a file to a list of Prolog terms (see read/1). @c _Spec_ is a */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/readutil.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/readutil.pl #false cat << "EOF" > tmp /** @pred read_file_to_codes(+ _Spec_, - _Codes_, + _Options_) Read a file to a list of character codes. Currently ignores _Options_. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/readutil.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/readutil.pl #false cat << "EOF" > tmp /** @pred use_foreign_library(+ _FileSpec_) is det use_foreign_library(+ _FileSpec_, + _Entry_:atom) is det Load and install a foreign library as load_foreign_library/1 and `load_foreign_library/2` and register the installation using `initialization/2` with the option now. This is similar to using: ~~~~~ :- initialization(load_foreign_library(foreign(mylib))). ~~~~~ but using the initialization/1 wrapper causes the library to be loaded after loading of the file in which it appears is completed, while use_foreign_library/1 loads the library immediately. I.e. the difference is only relevant if the remainder of the file uses functionality of the `C`-library. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/shlib.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/shlib.pl #false cat << "EOF" > tmp /** @pred unload_foreign_library(+ _FileSpec_, + _Exit_:atom) is det Unload a shared object or DLL. After calling the _Exit_ function, the shared object is removed from the process. The default exit function is composed from `uninstall_`, followed by the file base-name. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/shlib.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/shlib.pl #false cat << "EOF" > tmp /** @pred unload_foreign_library(+ _FileSpec_) is det */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/shlib.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/shlib.pl #false cat << "EOF" > tmp /** @pred load_foreign_library(: _FileSpec_, + _Entry_:atom) is det Load a shared object or DLL. After loading the _Entry_ function is called without arguments. The default entry function is composed from `install_`, followed by the file base-name. E.g., the load-call below calls the function `install_mylib()`. If the platform prefixes extern functions with `_`, this prefix is added before calling. ~~~~~ ... load_foreign_library(foreign(mylib)), ... ~~~~~ _FileSpec_ is a specification for absolute_file_name/3. If searching the file fails, the plain name is passed to the OS to try the default method of the OS for locating foreign objects. The default definition of file_search_path/2 searches /lib/Yap. See also `use_foreign_library/1,2` are intended for use in directives. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/shlib.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/shlib.pl #false cat << "EOF" > tmp /** @pred load_foreign_library(: _FileSpec_) is det */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/shlib.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/shlib.pl #false cat << "EOF" > tmp /** @pred current_foreign_library(? _File_, ? _Public_) Query currently loaded shared libraries. */ EOF sed -e "31r tmp" /Users/vsc/git/yap-6.3/swi/library/shlib.pl > x mv x /Users/vsc/git/yap-6.3/swi/library/shlib.pl