1247 lines
		
	
	
		
			36 KiB
		
	
	
	
		
			Prolog
		
	
	
	
	
	
			
		
		
	
	
			1247 lines
		
	
	
		
			36 KiB
		
	
	
	
		
			Prolog
		
	
	
	
	
	
| /**
 | |
|  * @file   maplist.yap
 | |
|  * @author Lawrence Byrd + Richard A. O'Keefe, VITOR SANTOS COSTA <vsc@VITORs-MBP.lan>
 | |
|  * @author : E. Alphonse from code by Joachim Schimpf, Jan Wielemaker, Vitor Santos Costa
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|  * @date    4 August 1984 and Ken Johnson 11-8-87
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|  *
 | |
|  * @brief  Macros to apply a predicate to all elements of a list.
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|  *
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|  *
 | |
| */
 | |
| 
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|   :- module(maplist,
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|     [maplist/2,
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|     maplist/3,
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|     maplist/4,
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|     maplist/5,
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|     checklist/2,
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|   checknodes/2,
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|   convlist/3,
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|   foldl/4,
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|   foldl/5,
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|   foldl/6,
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|   foldl/7,
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|   foldl2/6,
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|   foldl2/7,
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|   foldl2/8,
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|   foldl3/8,
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|   foldl4/10,
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|   include/3,
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|   exclude/3,
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|   mapnodes/3,
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|   partition/4,
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|   partition/5,
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|   scanl/4,
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|   scanl/5,
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|   scanl/6,
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|   scanl/7,
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|   selectlist/3,
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|   selectlist/4,
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|   selectlists/5,
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|   sumlist/4,
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|   sumnodes/4
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|     ]).
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| 
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| /**
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|   * @defgroup maplist Map List and Term Operations
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|   * @ingroup library
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|   *
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|   * This library provides a set of utilities for applying a predicate to
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|   * all elements of a list. They allow one to easily perform the most common do-loop constructs in Prolog.
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|   *  To avoid performance degradation, each call creates an
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|   * equivalent Prolog program, without meta-calls, which is executed by
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|   * the Prolog engine instead. The library was based on code
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|   * by Joachim Schimpf and on code from SWI-Prolog, and it is also inspired by the GHC
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|   * libraries.
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|   *
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|   * The following routines are available once included with the
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|   * `use_module(library(apply_macros))` command.
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|   * @author : Lawrence Byrd
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|   * @author Richard A. O'Keefe
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|   * @author Joachim Schimpf
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|   * @author Jan Wielemaker
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|   * @author E. Alphonse
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|   * @author Vitor Santos Costa
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| 
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| 
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| Examples:
 | |
| 
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.prolog}
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| %given
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| plus(X,Y,Z) :- Z is X + Y.
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| 
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| plus_if_pos(X,Y,Z) :- Y > 0, Z is X + Y.
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| 
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| vars(X, Y, [X|Y]) :- var(X), !.
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| vars(_, Y, Y).
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| 
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| trans(TermIn, TermOut) :-
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|         nonvar(TermIn),
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|         TermIn =.. [p|Args],
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|         TermOut =..[q|Args], !.
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| trans(X,X).
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| 
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| %success
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| 
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|   ?- maplist(plus(1), [1,2,3,4], [2,3,4,5]).
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| 
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|   ?- checklist(var, [X,Y,Z]).
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| 
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|   ?- selectlist(<(0), [-1,0,1], [1]).
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| 
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|   ?- convlist(plus_if_pos(1), [-1,0,1], [2]).
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| 
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|   ?- sumlist(plus, [1,2,3,4], 1, 11).
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| 
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|   ?- maplist(mapargs(number_atom),[c(1),s(1,2,3)],[c('1'),s('1','2','3')]).
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 
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|   @{
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| 
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|   */
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| 
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| 
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| 
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| /** @pred maplist(+ _Pred_,+ _List1_,+ _List2_)
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| 
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| Apply  _Pred_ on all successive pairs of elements from
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|  _List1_ and
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|  _List2_. Fails if  _Pred_ can not be applied to a
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| pair. See the example above.
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| 
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| 
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| */
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| /** @pred maplist(+ _Pred_,+ _List1_,+ _List2_,+ _List4_)
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| 
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| Apply  _Pred_ on all successive triples of elements from  _List1_,
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|  _List2_ and  _List3_. Fails if  _Pred_ can not be applied to a
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| triple. See the example above.
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| 
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|  */
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| 
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| :- meta_predicate
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| 	selectlist(2,+,-),
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| 	selectlist(3,+,+,-),
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| 	checklist(1,+),
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| 	maplist(1,+),
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| 	maplist(2,+,-),
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| 	maplist(3,+,+,-),
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| 	maplist(4,+,+,+,-),
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| 	convlist(2,+,-),
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| 	mapnodes(2,+,-),
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| 	mapnodes_list(2,+,-),
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| 	checknodes(1,+),
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| 	checknodes_list(1,+),
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| 	sumlist(3,+,+,-),
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| 	sumnodes(3,+,+,-),
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| 	sumnodes_body(3,+,+,-,+,+),
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| 	include(1,+,-),
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| 	exclude(1,+,-),
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| 	partition(2,+,-,-),
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| 	partition(2,+,-,-,-),
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| 	foldl(3, +, +, -),
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| 	foldl2(5, +, +, -, +, -),
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| 	foldl2(6, +, ?, +, -, +, -),
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| 	foldl2(6, +, ?, ?, +, -, +, -),
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| 	foldl3(5, +, +, -, +, -, +, -),
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| 	foldl4(7, +, +, -, +, -, +, -, +, -),
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| 	foldl(4, +, +, +, -),
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| 	foldl(5, +, +, +, +, -),
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| 	foldl(6, +, +, +, +, +, -),
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| 	scanl(3, +, +, -),
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| 	scanl(4, +, +, +, -),
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| 	scanl(5, +, +, +, +, -),
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| 	scanl(6, +, +, +, +, +, -).
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| 
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| :- use_module(library(maputils)).
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| :- use_module(library(lists), [append/3]).
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| :- use_module(library(charsio), [format_to_chars/3, read_from_chars/2]).
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| :- use_module(library(occurs), [sub_term/2]).
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| 
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| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| %
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| %  Definitions for Metacalls
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| %
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| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 
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| /** include(+ _Pred_, + _ListIn_, ? _ListOut_)
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|   Same as selectlist/3.
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| */
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| include(G,In,Out) :-
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| 	selectlist(G, In, Out).
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| 
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| /** selectlist(: _Pred_, + _ListIn_, ? _ListOut_))
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|   Creates  _ListOut_ of all list elements of  _ListIn_ that pass a given test
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| */
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| selectlist(_, [], []).
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| selectlist(Pred, [In|ListIn], ListOut) :-
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|     (call(Pred, In) ->
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| 	ListOut = [In|NewListOut]
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|     ;
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| 	ListOut = NewListOut
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|     ),
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|     selectlist(Pred, ListIn, NewListOut).
 | |
| 
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| /** selectlist(: _Pred_, + _ListIn_, + _ListInAux_, ? _ListOut_, ? _ListOutAux_)
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|   Creates  _ListOut_ and _ListOutAux_ of all list elements of  _ListIn_ and _ListInAux_ that
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|   pass the given test  _Pred_.
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| */
 | |
| selectlists(_, [], [], [], []).
 | |
| selectlists(Pred, [In|ListIn], [In1|ListIn1], ListOut, ListOut1) :-
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|     (call(Pred, In, In1) ->
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| 	ListOut = [In|NewListOut],
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| 	ListOut1 = [In1|NewListOut1]
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|     ;
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| 	ListOut1 = NewListOut1,
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| 	ListOut = NewListOut
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|     ),
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|     selectlist(Pred, ListIn, ListIn1, NewListOut, NewListOut1).
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| 
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| /** selectlist(: _Pred_, + _ListIn_, + _ListInAux_, ? _ListOut_)
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|   Creates  _ListOut_ of all list elements of  _ListIn_ that
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|   pass the given test  _Pred_ using + _ListInAux_ as an
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|   auxiliary element.
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| */
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| selectlist(_, [], [], []).
 | |
| selectlist(Pred, [In|ListIn], [In1|ListIn1], ListOut) :-
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|     (call(Pred, In, In1) ->
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| 	ListOut = [In|NewListOut]
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|     ;
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| 	ListOut = NewListOut
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|     ),
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|     selectlist(Pred, ListIn, ListIn1, NewListOut).
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| 
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| /** exclude(+ _Goal_, + _List1_, ? _List2_)
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|   Filter elements for which  _Goal_ fails. True if  _List2_ contains
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|   those elements  _Xi_ of  _List1_ for which `call(Goal, Xi)` fails.
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| */
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| exclude(_, [], []).
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| exclude(Pred, [In|ListIn], ListOut) :-
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|     (call(Pred, In) ->
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| 	ListOut = NewListOut
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|     ;
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| 	ListOut = [In|NewListOut]
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|     ),
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|     exclude(Pred, ListIn, NewListOut).
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| 
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| /** partition(+ _Pred_,  + _List1_, ? _Included_, ? _Excluded_)
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|   Filter elements of  _List_ according to  _Pred_. True if
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|   _Included_ contains all elements for which `call(Pred, X)`
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|   succeeds and  _Excluded_ contains the remaining elements.
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| */
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| partition(_, [], [], []).
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| partition(Pred, [In|ListIn], List1, List2) :-
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|     (call(Pred, In) ->
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| 	List1 = [In|RList1],
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| 	List2 = RList2
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|     ;
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| 	List1 = RList1,
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| 	List2 = [In|RList2]
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|     ),
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|     partition(Pred, ListIn, RList1, RList2).
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| 
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| /** partition(+ _Pred_,  + _List1_, ? _Lesser_, ? _Equal_, ? _Greater_)
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| 
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|   Filter list according to  _Pred_ in three sets. For each element
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|   _Xi_ of  _List_, its destination is determined by
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|   `call(Pred, Xi, Place)`, where  _Place_ must be unified to one
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|   of `\<`, `=` or `\>`. `Pred` must be deterministic.
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| 
 | |
| 
 | |
| */
 | |
| partition(_, [], [], [], []).
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| partition(Pred, [In|ListIn], List1, List2, List3) :-
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|     call(Pred, In, Diff),
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|     ( Diff == (<)  ->
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| 	List1 = [In|RList1],
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| 	List2 = RList2,
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| 	List3 = RList3
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|     ;
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|        Diff == (=)  ->
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|       List1 = RList1,
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|       List2 = [In|RList2],
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|       List3 = RList3
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|     ;
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|        Diff == (>)  ->
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|       List1 = RList1,
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|       List2 = RList2,
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|       List3 = [In|RList3]
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|     ;
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|       must_be(oneof([<,=,>]), Diff)
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|     ),
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|     partition(Pred, ListIn, RList1, RList2, RList3).
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| 
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| /** checklist(: _Pred_, + _List_)
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|   Succeeds if the predicate  _Pred_ succeeds on all elements of  _List_.
 | |
| */
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| checklist(_, []).
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| checklist(Pred, [In|ListIn]) :-
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|     call(Pred, In),
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|     checklist(Pred, ListIn).
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| 
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| /** maplist(: _Pred_, ? _ListIn_)
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| 
 | |
|   Applies predicate  _Pred_( _El_ ) to all
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|   elements _El_ of  _ListIn_.
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| 
 | |
| */
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| maplist(_, []).
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| maplist(Pred, [In|ListIn]) :-
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|     call(Pred, In),
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|     maplist(Pred, ListIn).
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| 
 | |
| 
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| /** maplist(: _Pred_, ? _L1_, ? _L2_ )
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|   _L1_  and  _L2_ are such that
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|   `call( _Pred_, _A1_, _A2_)` holds for every
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|   corresponding element in lists  _L1_,   _L2_.
 | |
| 
 | |
|   Comment from Richard O'Keefe: succeeds when _Pred( _Old_, _New_) succeeds for each corresponding
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|   _Gi_ in _Listi_, _New_ in _NewList_.  In InterLisp, this is MAPCAR.
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|    It is also MAP2C.  Isn't bidirectionality wonderful?
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| */
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| maplist(_, [], []).
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| maplist(Pred, [In|ListIn], [Out|ListOut]) :-
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| 	call(Pred, In, Out),
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| 	maplist(Pred, ListIn, ListOut).
 | |
| 
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| /** maplist(: _Pred_, ? _L1_, ? _L2_, ? _L3_)
 | |
|   _L1_,   _L2_, and  _L3_ are such that
 | |
|   `call( _Pred_, _A1_, _A2_, _A3_)` holds for every
 | |
|   corresponding element in lists  _L1_,   _L2_, and  _L3_.
 | |
| 
 | |
| */
 | |
| maplist(_, [], [], []).
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| maplist(Pred, [A1|L1], [A2|L2], [A3|L3]) :-
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|     call(Pred, A1, A2, A3),
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|     maplist(Pred, L1, L2, L3).
 | |
| 
 | |
| /** maplist(: _Pred_, ? _L1_, ? _L2_, ? _L3_, ? _L4_)
 | |
|   _L1_,  _L2_,  _L3_, and  _L4_ are such that
 | |
|   `call( _Pred_, _A1_, _A2_, _A3_, _A4_)` holds
 | |
|   for every corresponding element in lists  _L1_,  _L2_,  _L3_, and
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|   _L4_.
 | |
| */
 | |
| maplist(_, [], [], [], []).
 | |
| maplist(Pred, [A1|L1], [A2|L2], [A3|L3], [A4|L4]) :-
 | |
|     call(Pred, A1, A2, A3, A4),
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|     maplist(Pred, L1, L2, L3, L4).
 | |
| 
 | |
| /**
 | |
|   convlist(: _Pred_, + _ListIn_, ? _ListOut_) @anchor convlist
 | |
| 
 | |
|   A combination of maplist/3 and selectlist/3: creates  _ListOut_ by
 | |
|   applying the predicate  _Pred_ to all list elements on which
 | |
|   _Pred_ succeeds.
 | |
| 
 | |
|   ROK: convlist(Rewrite, OldList, NewList)
 | |
|   is a sort of hybrid of maplist/3 and sublist/3.
 | |
|   Each element of NewList is the image under Rewrite of some
 | |
|   element of OldList, and order is preserved, but elements of
 | |
|   OldList on which Rewrite is undefined (fails) are not represented.
 | |
|   Thus if foo(X,Y) :- integer(X), Y is X+1.
 | |
|   then convlist(foo, [1,a,0,joe(99),101], [2,1,102]).
 | |
| */
 | |
| convlist(_, [], []).
 | |
| convlist(Pred, [Old|Olds], NewList) :-
 | |
| 	call(Pred, Old, New),
 | |
| 	!,
 | |
| 	NewList = [New|News],
 | |
| 	convlist(Pred, Olds, News).
 | |
| convlist(Pred, [_|Olds], News) :-
 | |
| 	convlist(Pred, Olds, News).
 | |
| 
 | |
| /**
 | |
|   mapnodes(+ _Pred_, + _TermIn_, ? _TermOut_)
 | |
| 
 | |
|   Creates  _TermOut_ by applying the predicate  _Pred_
 | |
|   to all sub-terms of  _TermIn_ (depth-first and left-to-right order).
 | |
| */
 | |
| mapnodes(Pred, TermIn, TermOut) :-
 | |
|     (atomic(TermIn); var(TermIn)), !,
 | |
|     call(Pred, TermIn, TermOut).
 | |
| mapnodes(Pred, TermIn, TermOut) :-
 | |
|     call(Pred, TermIn, Temp),
 | |
|     Temp =.. [Func|ArgsIn],
 | |
|     mapnodes_list(Pred, ArgsIn, ArgsOut),
 | |
|     TermOut =.. [Func|ArgsOut].
 | |
| 
 | |
| mapnodes_list(_, [], []).
 | |
| mapnodes_list(Pred, [TermIn|ArgsIn], [TermOut|ArgsOut]) :-
 | |
|     mapnodes(Pred, TermIn, TermOut),
 | |
|     mapnodes_list(Pred, ArgsIn, ArgsOut).
 | |
| 
 | |
| /**
 | |
|   checknodes(+ _Pred_, + _Term_)  @anchor checknodes
 | |
| 
 | |
|   Succeeds if the predicate  _Pred_ succeeds on all sub-terms of
 | |
|   _Term_ (depth-first and left-to-right order)
 | |
| */
 | |
| checknodes(Pred, Term) :-
 | |
|     (atomic(Term); var(Term)), !,
 | |
|     call(Pred, Term).
 | |
| checknodes(Pred, Term) :-
 | |
|     call(Pred, Term),
 | |
|     Term =.. [_|Args],
 | |
|     checknodes_list(Pred, Args).
 | |
| 
 | |
| checknodes_list(_, []).
 | |
| checknodes_list(Pred, [Term|Args]) :-
 | |
|     checknodes_body(Pred, Term),
 | |
|     checknodes_list(Pred, Args).
 | |
| 
 | |
| /**
 | |
|   sumlist(: _Pred_, + _List_, ? _AccIn_, ? _AccOut_)
 | |
| 
 | |
|   Calls  _Pred_ on all elements of List and collects a result in
 | |
|   _Accumulator_. Same as fold/4.
 | |
| */
 | |
| sumlist(_, [], Acc, Acc).
 | |
| sumlist(Pred, [H|T], AccIn, AccOut) :-
 | |
|     call(Pred, H, AccIn, A1),
 | |
|     sumlist(Pred, T, A1, AccOut).
 | |
| 
 | |
| /**
 | |
|   sumnodes(+ _Pred_, + _Term_, ? _AccIn_, ? _AccOut_) @anchor sumnodes
 | |
| 
 | |
|   Calls the predicate  _Pred_ on all sub-terms of  _Term_ and
 | |
|   collect a result in  _Accumulator_ (depth-first and left-to-right
 | |
|   order)
 | |
| */
 | |
| sumnodes(Pred, Term, A0, A2) :-
 | |
|     call(Pred, Term, A0, A1),
 | |
|     (compound(Term) ->
 | |
| 	functor(Term, _, N),
 | |
| 	sumnodes_body(Pred, Term, A1, A2, 0, N)
 | |
|     ;	% simple term or variable
 | |
| 	A1 = A2
 | |
|     ).
 | |
| 
 | |
| sumnodes_body(Pred, Term, A1, A3, N0, Ar) :-
 | |
|     N0 < Ar ->
 | |
| 	N is N0+1,
 | |
| 	arg(N, Term, Arg),
 | |
| 	sumnodes(Pred, Arg, A1, A2),
 | |
| 	sumnodes_body(Pred, Term, A2, A3, N, Ar)
 | |
|     ;
 | |
| 	A1 = A3.
 | |
| 
 | |
| 
 | |
| 		 /*******************************
 | |
| 		 *	      FOLDL		*
 | |
| 		 *******************************/
 | |
| 
 | |
| %%	foldl(:Goal, +List, +V0, -V, +W0, -WN).
 | |
| %
 | |
| 
 | |
| /**
 | |
|   foldl(: _Pred_, + _List1_, + _List2_, ? _AccIn_, ? _AccOut_)
 | |
| 
 | |
|   Calls  _Pred_ on all elements of `List1` and collects a result in  _Accumulator_. Same as
 | |
|   foldr/3.
 | |
| */
 | |
| foldl(Goal, List, V0, V) :-
 | |
| 	foldl_(List, Goal, V0, V).
 | |
| 
 | |
| foldl_([], _, V, V).
 | |
| foldl_([H|T], Goal, V0, V) :-
 | |
| 	call(Goal, H, V0, V1),
 | |
| 	foldl_(T, Goal, V1, V).
 | |
| 
 | |
| /**
 | |
|   foldl(: _Pred_, + _List1_, + _List2_, ? _AccIn_, ? _AccOut_)
 | |
| 
 | |
|   Calls  _Pred_ on all elements of _List1_ and
 | |
|   _List2_ and collects a result in  _Accumulator_. Same as
 | |
|   foldr/4.
 | |
| 
 | |
|   The foldl family of predicates is defined
 | |
| 	  ==
 | |
| 	  foldl(P, [X11,...,X1n],V0, Vn, W0, WN) :-
 | |
| 		P(X11, V0, V1, W0, W1),
 | |
| 		...
 | |
| 		P(X1n, Vn1, Vn, Wn1, Wn).
 | |
| 	  ==
 | |
| */
 | |
| foldl(Goal, List1, List2, V0, V) :-
 | |
| 	foldl_(List1, List2, Goal, V0, V).
 | |
| 
 | |
| foldl_([], [], _, V, V).
 | |
| foldl_([H1|T1], [H2|T2], Goal, V0, V) :-
 | |
| 	call(Goal, H1, H2, V0, V1),
 | |
| 	foldl_(T1, T2, Goal, V1, V).
 | |
| 
 | |
| /**
 | |
| 
 | |
| */
 | |
| foldl(Goal, List1, List2, List3, V0, V) :-
 | |
| 	foldl_(List1, List2, List3, Goal, V0, V).
 | |
| 
 | |
| foldl_([], [], [], _, V, V).
 | |
| foldl_([H1|T1], [H2|T2], [H3|T3], Goal, V0, V) :-
 | |
| 	call(Goal, H1, H2, H3, V0, V1),
 | |
| 	foldl_(T1, T2, T3, Goal, V1, V).
 | |
| 
 | |
| 
 | |
| /**
 | |
| 
 | |
| */
 | |
| foldl(Goal, List1, List2, List3, List4, V0, V) :-
 | |
| 	foldl_(List1, List2, List3, List4, Goal, V0, V).
 | |
| 
 | |
| foldl_([], [], [], [], _, V, V).
 | |
| foldl_([H1|T1], [H2|T2], [H3|T3], [H4|T4], Goal, V0, V) :-
 | |
| 	call(Goal, H1, H2, H3, H4, V0, V1),
 | |
| 	foldl_(T1, T2, T3, T4, Goal, V1, V).
 | |
| 
 | |
| 
 | |
| /**
 | |
|   foldl2(: _Pred_, + _List_, ? _X0_, ? _X_, ? _Y0_, ? _Y_)
 | |
| 
 | |
|   Calls  _Pred_ on all elements of `List` and collects a result in
 | |
|   _X_ and  _Y_.
 | |
| 
 | |
| */
 | |
| foldl2(Goal, List, V0, V, W0, W) :-
 | |
| 	foldl2_(List, Goal, V0, V, W0, W).
 | |
| 
 | |
| foldl2_([], _, V, V, W, W).
 | |
| foldl2_([H|T], Goal, V0, V, W0, W) :-
 | |
| 	call(Goal, H, V0, V1, W0, W1),
 | |
| 	foldl2_(T, Goal, V1, V, W1, W).
 | |
| 
 | |
| /**
 | |
|   foldl2(: _Pred_, + _List_, ? _List1_, ? _X0_, ? _X_, ? _Y0_, ? _Y_)
 | |
| 
 | |
|   Calls  _Pred_ on all elements of  _List_  and  _List1_  and collects a result in
 | |
|   _X_ and  _Y_.
 | |
| */
 | |
| foldl2(Goal, List1, List2, V0, V, W0, W) :-
 | |
| 	foldl2_(List1, List2, Goal, V0, V, W0, W).
 | |
| 
 | |
| foldl2_([], [], _Goal, V, V, W, W).
 | |
| foldl2_([H1|T1], [H2|T2], Goal, V0, V, W0, W) :-
 | |
| 	call(Goal, H1, H2, V0, V1, W0, W1),
 | |
| 	foldl2_(T1, T2, Goal, V1, V, W1, W).
 | |
| 
 | |
| /**
 | |
|   foldl2(: _Pred_, + _List_, ? _List1_, ? _List2_, ? _X0_, ? _X_, ? _Y0_, ? _Y_)
 | |
| 
 | |
|   Calls  _Pred_ on all elements of  _List_,  _List1_  and  _List2_  and collects a result in
 | |
|   _X_ and  _Y_.
 | |
| 
 | |
| */
 | |
| foldl2(Goal, List1, List2, List3, V0, V, W0, W) :-
 | |
| 	foldl2_(List1, List2, List3, Goal, V0, V, W0, W).
 | |
| 
 | |
| foldl2_([], [], [], _Goal, V, V, W, W).
 | |
| foldl2_([H1|T1], [H2|T2], [H3|T3], Goal, V0, V, W0, W) :-
 | |
| 	call(Goal, H1, H2, H3, V0, V1, W0, W1),
 | |
| 	foldl2_(T1, T2, T3, Goal, V1, V, W1, W).
 | |
| 
 | |
| 
 | |
| /**
 | |
|   foldl3(: _Pred_, + _List1_, ? _List2_, ? _X0_, ? _X_, ? _Y0_, ? _Y_, ? _Z0_, ? _Z_)
 | |
| 
 | |
| 
 | |
|   Calls  _Pred_ on all elements of `List` and collects a
 | |
|   result in  _X_,  _Y_ and  _Z_.
 | |
| */
 | |
| foldl3(Goal, List, V0, V, W0, W, X0, X) :-
 | |
| 	foldl3_(List, Goal, V0, V, W0, W, X0, X).
 | |
| 
 | |
| foldl3_([], _, V, V, W, W, X, X).
 | |
| foldl3_([H|T], Goal, V0, V, W0, W, X0, X) :-
 | |
| 	call(Goal, H, V0, V1, W0, W1, X0, X1),
 | |
| 	fold3_(T, Goal, V1, V, W1, W, X1, X).
 | |
| 
 | |
| /**
 | |
|   foldl4(: _Pred_, + _List1_, ? _List2_, ? _X0_, ? _X_, ? _Y0_, ? _Y_, ? _Z0_, ? _Z_, ? _W0_, ? _W_)
 | |
| 
 | |
| 
 | |
|   Calls  _Pred_ on all elements of `List` and collects a
 | |
|   result in  _X_,  _Y_,  _Z_ and  _W_.
 | |
| */
 | |
| foldl4(Goal, List, V0, V, W0, W, X0, X, Y0, Y) :-
 | |
| 	foldl4_(List, Goal, V0, V, W0, W, X0, X, Y0, Y).
 | |
| 
 | |
| foldl4_([], _, V, V, W, W, X, X, Y, Y).
 | |
| foldl4_([H|T], Goal, V0, V, W0, W, X0, X, Y0, Y) :-
 | |
|     call(Goal, H, V0, V1, W0, W1, X0, X1, Y0, Y1),
 | |
|     foldl4_(T, Goal, V1, V, W1, W, X1, X, Y1, Y).
 | |
| 
 | |
| 
 | |
| 
 | |
| 		 /*******************************
 | |
| 		 *	       SCANL		*
 | |
| 		 *******************************/
 | |
| 
 | |
| %%	scanl(:Goal, +List, +V0, -Values).
 | |
| %%	scanl(:Goal, +List1, +List2, +V0, -Values).
 | |
| %%	scanl(:Goal, +List1, +List2, +List3, +V0, -Values).
 | |
| %%	scanl(:Goal, +List1, +List2, +List3, +List4, +V0, -Values).
 | |
| %
 | |
| %	Left scan of  list.  The  scanl   family  of  higher  order list
 | |
| %	operations is defined by:
 | |
| %
 | |
| %	  ==
 | |
| %	  scanl(P, [X11,...,X1n], ..., [Xm1,...,Xmn], V0, [V0,V1,...,Vn]) :-
 | |
| %		P(X11, ..., Xmn, V0, V1),
 | |
| %		...
 | |
| %	        P(X1n, ..., Xmn, V', Vn).
 | |
| %	  ==
 | |
| 
 | |
| /**
 | |
|     scanl(: _Pred_, + _List_, + _V0_, ? _Values_)
 | |
| 
 | |
| 
 | |
| Left scan of  list.  The  scanl   family  of  higher  order list
 | |
| operations is defined by:
 | |
| 
 | |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.prolog}
 | |
|       scanl(P, [X11,...,X1n], ..., [Xm1,...,Xmn], V0, [V0,V1,...,Vn]) :-
 | |
|         P(X11, ..., Xm1, V0, V1),
 | |
|         ...
 | |
|             P(X1n, ..., Xmn, Vn-1, Vn).
 | |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 | |
| */
 | |
| scanl(Goal, List, V0, [V0|Values]) :-
 | |
| 	scanl_(List, Goal, V0, Values).
 | |
| 
 | |
| scanl_([], _, _, []).
 | |
| scanl_([H|T], Goal, V, [VH|VT]) :-
 | |
| 	call(Goal, H, V, VH),
 | |
| 	scanl_(T, Goal, VH, VT).
 | |
| 
 | |
| /**
 | |
|   scanl(: _Pred_, + _List1_, + _List2_, ? _V0_, ? _Vs_)
 | |
| 
 | |
| Left scan of  list.
 | |
|  */
 | |
| scanl(Goal, List1, List2, V0, [V0|Values]) :-
 | |
| 	scanl_(List1, List2, Goal, V0, Values).
 | |
| 
 | |
| scanl_([], [], _, _, []).
 | |
| scanl_([H1|T1], [H2|T2], Goal, V, [VH|VT]) :-
 | |
| 	call(Goal, H1, H2, V, VH),
 | |
| 	scanl_(T1, T2, Goal, VH, VT).
 | |
| 
 | |
| /**
 | |
|  scanl(: _Pred_, + _List1_, + _List2_, + _List3_, ? _V0_, ? _Vs_)
 | |
| 
 | |
| Left scan of  list.
 | |
| */
 | |
| scanl(Goal, List1, List2, List3, V0, [V0|Values]) :-
 | |
| 	scanl_(List1, List2, List3, Goal, V0, Values).
 | |
| 
 | |
| scanl_([], [], [], _, _, []).
 | |
| scanl_([H1|T1], [H2|T2], [H3|T3], Goal, V, [VH|VT]) :-
 | |
| 	call(Goal, H1, H2, H3, V, VH),
 | |
| 	scanl_(T1, T2, T3, Goal, VH, VT).
 | |
| 
 | |
| /**
 | |
|   scanl(: _Pred_, + _List1_, + _List2_, + _List3_, + _List4_, ? _V0_, ? _Vs_)
 | |
| 
 | |
|   Left scan of  list.
 | |
| */
 | |
| scanl(Goal, List1, List2, List3, List4, V0, [V0|Values]) :-
 | |
| 	scanl_(List1, List2, List3, List4, Goal, V0, Values).
 | |
| 
 | |
| scanl_([], [], [], [], _, _, []).
 | |
| scanl_([H1|T1], [H2|T2], [H3|T3], [H4|T4], Goal, V, [VH|VT]) :-
 | |
| 	call(Goal, H1, H2, H3, H4, V, VH),
 | |
| 	scanl_(T1, T2, T3, T4, Goal, VH, VT).
 | |
| 
 | |
| 
 | |
| goal_expansion(checklist(Meta, List), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(checklist, 2, Proto, GoalName),
 | |
| 	append(MetaVars, [List], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[]], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins]], RecursionHead),
 | |
| 	append_args(Pred, [In], Apply),
 | |
| 	append_args(HeadPrefix, [Ins], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(maplist(Meta, List), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(maplist, 2, Proto, GoalName),
 | |
| 	append(MetaVars, [List], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[]], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins]], RecursionHead),
 | |
| 	append_args(Pred, [In], Apply),
 | |
| 	append_args(HeadPrefix, [Ins], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(maplist(Meta, ListIn, ListOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(maplist, 3, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, ListOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], [Out|Outs]], RecursionHead),
 | |
| 	append_args(Pred, [In, Out], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Outs], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(maplist(Meta, L1, L2, L3), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(maplist, 4, Proto, GoalName),
 | |
| 	append(MetaVars, [L1, L2, L3], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], []], Base),
 | |
| 	append_args(HeadPrefix, [[A1|A1s], [A2|A2s], [A3|A3s]], RecursionHead),
 | |
| 	append_args(Pred, [A1, A2, A3], Apply),
 | |
| 	append_args(HeadPrefix, [A1s, A2s, A3s], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(maplist(Meta, L1, L2, L3, L4), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(maplist, 5, Proto, GoalName),
 | |
| 	append(MetaVars, [L1, L2, L3, L4], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], [], []], Base),
 | |
| 	append_args(HeadPrefix, [[A1|A1s], [A2|A2s], [A3|A3s], [A4|A4s]], RecursionHead),
 | |
| 	append_args(Pred, [A1, A2, A3, A4], Apply),
 | |
| 	append_args(HeadPrefix, [A1s, A2s, A3s, A4s], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(selectlist(Meta, ListIn, ListOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(selectlist, 3, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, ListOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
 | |
| 	append_args(Pred, [In], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         (Apply -> Outs = [In|NOuts]; Outs = NOuts),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(selectlist(Meta, ListIn, ListIn1, ListOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(selectlist, 3, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, ListIn1, ListOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], [In1|Ins1], Outs], RecursionHead),
 | |
| 	append_args(Pred, [In, In1], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Ins1, NOuts], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         (Apply -> Outs = [In|NOuts]; Outs = NOuts),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(selectlists(Meta, ListIn, ListIn1, ListOut, ListOut1), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(selectlist, 4, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, ListIn1, ListOut, ListOut1], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], [], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], [In1|Ins1], Outs, Outs1], RecursionHead),
 | |
| 	append_args(Pred, [In, In1], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Ins1, NOuts, NOuts1], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         (Apply -> Outs = [In|NOuts], Outs1 = [In1|NOuts1]; Outs = NOuts,  Outs1 = NOuts1),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| % same as selectlist
 | |
| goal_expansion(include(Meta, ListIn, ListOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(include, 3, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, ListOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
 | |
| 	append_args(Pred, [In], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         (Apply -> Outs = [In|NOuts]; Outs = NOuts),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(exclude(Meta, ListIn, ListOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(exclude, 3, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, ListOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
 | |
| 	append_args(Pred, [In], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         (Apply -> Outs = NOuts; Outs = [In|NOuts]),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(partition(Meta, ListIn, List1, List2), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(partition, 4, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, List1, List2], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Outs1, Outs2], RecursionHead),
 | |
| 	append_args(Pred, [In], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, NOuts1, NOuts2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         (Apply -> Outs1 = [In|NOuts1], Outs2 = NOuts2; Outs1 = NOuts1, Outs2 = [In|NOuts2]),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(partition(Meta, ListIn, List1, List2, List3), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(partition2, 5, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, List1, List2, List3], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], [], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Outs1, Outs2, Outs3], RecursionHead),
 | |
| 	append_args(Pred, [In,Diff], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, NOuts1, NOuts2, NOuts3], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         Apply,
 | |
| 		         (Diff == (<)  ->
 | |
| 	                   Outs1 = [In|NOuts1],
 | |
| 	                   Outs2 = NOuts2,
 | |
| 	                   Outs3 = NOuts3
 | |
| 			 ;
 | |
| 			  Diff == (=)  ->
 | |
| 			  Outs1 = NOuts1,
 | |
| 			  Outs2 = [In|NOuts2],
 | |
| 			  Outs3 = NOuts3
 | |
| 			 ;
 | |
| 			  Diff == (>)  ->
 | |
| 			  Outs1 = NOuts1,
 | |
| 			  Outs2 = NOuts2,
 | |
| 			  Outs3 = [In|NOuts3]
 | |
| 			 ;
 | |
| 			  must_be(oneof([<,=,>]), Diff)
 | |
| 			 ),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(convlist(Meta, ListIn, ListOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(convlist, 3, Proto, GoalName),
 | |
| 	append(MetaVars, [ListIn, ListOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Outs], RecursionHead),
 | |
| 	append_args(Pred, [In, Out], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, NOuts], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         (Apply -> Outs = [Out|NOuts]; Outs = NOuts),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(sumlist(Meta, List, AccIn, AccOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(sumlist, 4, Proto, GoalName),
 | |
| 	append(MetaVars, [List, AccIn, AccOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], Acc, Acc], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Acc1, Acc2], RecursionHead),
 | |
| 	append_args(Pred, [In, Acc1, Acc3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Acc3, Acc2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(foldl(Meta, List, AccIn, AccOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(foldl, 4, Proto, GoalName),
 | |
| 	append(MetaVars, [List, AccIn, AccOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], Acc, Acc], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Acc1, Acc2], RecursionHead),
 | |
| 	append_args(Pred, [In, Acc1, Acc3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Acc3, Acc2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(foldl(Meta, List1, List2, AccIn, AccOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(foldl, 5, Proto, GoalName),
 | |
| 	append(MetaVars, [List1, List2, AccIn, AccOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], Acc, Acc], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], [I2|Is2], Acc1, Acc2], RecursionHead),
 | |
| 	append_args(Pred, [In, I2, Acc1, Acc3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Is2, Acc3, Acc2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(foldl(Meta, List1, List2, List3, AccIn, AccOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(foldl, 6, Proto, GoalName),
 | |
| 	append(MetaVars, [List1, List2, List3, AccIn, AccOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], [], Acc, Acc], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], [I2|I2s], [I3|I3s], Acc1, Acc2], RecursionHead),
 | |
| 	append_args(Pred, [In, I2, I3, Acc1, Acc3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, I2s, I3s, Acc3, Acc2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(foldl2(Meta, List, AccIn, AccOut, W0, W), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(foldl2, 6, Proto, GoalName),
 | |
| 	append(MetaVars, [List, AccIn, AccOut, W0, W], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], Acc, Acc, W, W], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Acc1, Acc2, W1, W2], RecursionHead),
 | |
| 	append_args(Pred, [In, Acc1, Acc3, W1, W3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Acc3, Acc2, W3, W2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(foldl2(Meta, List1, List2, AccIn, AccOut, W0, W), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(foldl2, 7, Proto, GoalName),
 | |
| 	append(MetaVars, [List1, List2, AccIn, AccOut, W0, W], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], Acc, Acc, W, W], Base),
 | |
| 	append_args(HeadPrefix, [[In1|Ins1], [In2|Ins2], Acc1, Acc2, W1, W2], RecursionHead),
 | |
| 	append_args(Pred, [In1, In2, Acc1, Acc3, W1, W3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins1, Ins2, Acc3, Acc2, W3, W2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(foldl2(Meta, List1, List2, List3, AccIn, AccOut, W0, W), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(foldl2, 7, Proto, GoalName),
 | |
| 	append(MetaVars, [List1, List2, List3, AccIn, AccOut, W0, W], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], [], [], Acc, Acc, W, W], Base),
 | |
| 	append_args(HeadPrefix, [[In1|Ins1], [In2|Ins2], [In3|Ins3], Acc1, Acc2, W1, W2], RecursionHead),
 | |
| 	append_args(Pred, [In1, In2, In3, Acc1, Acc3, W1, W3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins1, Ins2, Ins3, Acc3, Acc2, W3, W2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(foldl3(Meta, List, AccIn, AccOut, W0, W, X0, X), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(foldl3, 8, Proto, GoalName),
 | |
| 	append(MetaVars, [List, AccIn, AccOut, W0, W, X0, X], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], Acc, Acc, W, W, X, X], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Acc1, Acc2, W1, W2, X1, X2], RecursionHead),
 | |
| 	append_args(Pred, [In, Acc1, Acc3, W1, W3, X1, X3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Acc3, Acc2, W3, W2, X3, X2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(foldl4(Meta, List, AccIn, AccOut, W0, W, X0, X, Y0, Y), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(foldl4, 8, Proto, GoalName),
 | |
| 	append(MetaVars, [List, AccIn, AccOut, W0, W, X0, X, Y0, Y], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], Acc, Acc, W, W, X, X, Y, Y], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Acc1, Acc2, W1, W2, X1, X2, Y1, Y2], RecursionHead),
 | |
| 	append_args(Pred, [In, Acc1, Acc3, W1, W3, X1, X3, Y1, Y3], Apply),
 | |
| 	append_args(HeadPrefix, [Ins, Acc3, Acc2, W3, W2, X3, X2, Y3, Y2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :- Apply, RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(mapnodes(Meta, InTerm, OutTerm), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(mapnodes, 3, Proto, GoalName),
 | |
| 	append(MetaVars, [[InTerm], [OutTerm]], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], []], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], [Out|Outs]], RecursionHead),
 | |
| 	append_args(Pred, [In, Temp], Apply),
 | |
| 	append_args(HeadPrefix, [InArgs, OutArgs], SubRecursiveCall),
 | |
| 	append_args(HeadPrefix, [Ins, Outs], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         Apply,
 | |
| 			 (compound(Temp)
 | |
| 			 ->
 | |
| 			     Temp =.. [F|InArgs],
 | |
| 			     SubRecursiveCall,
 | |
| 			     Out =.. [F|OutArgs]
 | |
| 			 ;
 | |
| 			     Out = Temp
 | |
| 			 ),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(checknodes(Meta, Term), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(checknodes, 2, Proto, GoalName),
 | |
| 	append(MetaVars, [[Term]], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[]], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins]], RecursionHead),
 | |
| 	append_args(Pred, [In], Apply),
 | |
| 	append_args(HeadPrefix, [Args], SubRecursiveCall),
 | |
| 	append_args(HeadPrefix, [Ins], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         Apply,
 | |
| 			 (compound(In)
 | |
| 			 ->
 | |
| 			     In =.. [_|Args],SubRecursiveCall
 | |
| 			 ;
 | |
| 			     true
 | |
| 			 ),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| goal_expansion(sumnodes(Meta, Term, AccIn, AccOut), Mod:Goal) :-
 | |
| 	goal_expansion_allowed,
 | |
| 	callable(Meta),
 | |
| 	prolog_load_context(module, Mod),
 | |
| 	aux_preds(Meta, MetaVars, Pred, PredVars, Proto),
 | |
| 	!,
 | |
| 	% the new goal
 | |
| 	pred_name(sumnodes, 4, Proto, GoalName),
 | |
| 	append(MetaVars, [[Term], AccIn, AccOut], GoalArgs),
 | |
| 	Goal =.. [GoalName|GoalArgs],
 | |
| 	% the new predicate declaration
 | |
| 	HeadPrefix =.. [GoalName|PredVars],
 | |
| 	append_args(HeadPrefix, [[], Acc, Acc], Base),
 | |
| 	append_args(HeadPrefix, [[In|Ins], Acc1, Acc2], RecursionHead),
 | |
| 	append_args(Pred, [In, Acc1, Acc3], Apply),
 | |
| 	append_args(HeadPrefix, [Args, Acc3, Acc4], SubRecursiveCall),
 | |
| 	append_args(HeadPrefix, [Ins, Acc4, Acc2], RecursiveCall),
 | |
| 	compile_aux([
 | |
| 		     Base,
 | |
| 		     (RecursionHead :-
 | |
| 		         Apply,
 | |
| 			 (compound(In)
 | |
| 			 ->
 | |
| 			     In =.. [_|Args],SubRecursiveCall
 | |
| 			 ;
 | |
| 			     Acc3 = Acc4
 | |
| 			 ),
 | |
| 			 RecursiveCall)
 | |
| 		    ], Mod).
 | |
| 
 | |
| /**
 | |
| @}
 | |
| */
 |