diogo/yap-6.3
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge ssh://ssh.dcc.fc.up.pt:31064/home/vsc/yap

Browse Source
This commit is contained in:
Vitor Santos Costa 2018-05-22 21:55:15 +01:00
commit ebe4ba266e
7 changed files with 161 additions and 181 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
CXX/yapi.cpp
View File

@ -29,6 +29,25 @@ X_API void YAP_UserBackCPredicate(const char *, YAP_UserCPred, YAP_UserCPred,
#if YAP_PYTHON
X_API bool do_init_python(void);
#endif
}
static void YAPCatchError()
{
if (LOCAL_CommittedError != nullptr &&
LOCAL_CommittedError->errorNo != YAP_NO_ERROR ) {
// Yap_PopTermFromDB(info->errorTerm);
// throw throw YAPError( );
Term es[2];
es[0] = TermError;
es[1] = MkErrorTerm(LOCAL_CommittedError);
LOCAL_CommittedError = nullptr;
Functor f = Yap_MkFunctor(Yap_LookupAtom("print_message"), 2);
YAP_RunGoalOnce(Yap_MkApplTerm(f, 2, es));
// Yap_PopTermFromDB(info->errorTerm);
// throw throw YAPError( SOURCE(), );
}
}
YAPPredicate::YAPPredicate(Term &t, Term &tmod, CELL *&ts, const char *pname) {
@ -486,13 +505,8 @@ bool YAPEngine::call(YAPPredicate ap, YAPTerm ts[]) {
// don't forget, on success these bindings will still be there);
result = YAP_LeaveGoal(false, &q);
if (LOCAL_CommittedError != nullptr) {
std::cerr << "Exception received by " << __func__ << "( "
<< YAPError(LOCAL_CommittedError).text()
<< ").\n Forwarded...\n\n";
// Yap_PopTermFromDB(info->errorTerm);
// throw throw YAPError( SOURCE(), );
}
YAPCatchError();
Yap_CloseHandles(q.CurSlot);
RECOVER_MACHINE_REGS();
return result;
@ -551,17 +565,11 @@ bool YAPEngine::mgoal(Term t, Term tmod) {
return result;
}
} catch (...) {
if (LOCAL_CommittedError != nullptr &&
LOCAL_CommittedError->errorNo != YAP_NO_ERROR) {
std::cerr << "Exception received by " << __func__ << "( "
<< YAPError(LOCAL_CommittedError).text()
<< ").\n Forwarded...\n\n";
YAP_LeaveGoal(result, &q);
YAPCatchError();
// free(LOCAL_CommittedError);
return false;
}
}
}
void YAPEngine::release() {
@ -617,13 +625,7 @@ Term YAPEngine::fun(Term t) {
__android_log_print(ANDROID_LOG_INFO, "YAPDroid", "exec ");
bool result = (bool)YAP_EnterGoal(ap, nullptr, &q);
if (LOCAL_CommittedError != nullptr) {
std::cerr << "Exception received by " << __func__ << "( "
<< YAPError(LOCAL_CommittedError).text()
<< ").\n Forwarded...\n\n";
// Yap_PopTermFromDB(info->errorTerm);
// throw throw YAPError( SOURCE(), );
}
YAPCatchError();
{
YAP_LeaveGoal(result, &q);
// PyEval_RestoreThread(_save);
@ -739,18 +741,8 @@ bool YAPQuery::next() {
YAP_LeaveGoal(false, &q_h);
Yap_CloseHandles(q_handles);
q_open = false;
if (LOCAL_CommittedError != nullptr) {
// Yap_PopTermFromDB(info->errorTerm);
// throw throw YAPError( );
Term es[2];
es[0] = TermError;
es[1] = MkErrorTerm(LOCAL_CommittedError);
Functor f = Yap_MkFunctor(Yap_LookupAtom("print_message"), 2);
YAP_RunGoalOnce(Yap_MkApplTerm(f, 2, es));
// Yap_PopTermFromDB(info->errorTerm);
// throw throw YAPError( SOURCE(), );
}
} else {
YAPCatchError();
} else {
q_handles = Yap_StartSlots();
}
RECOVER_MACHINE_REGS();
@ -926,9 +918,6 @@ PredEntry *YAPPredicate::getPred(YAPTerm &tt, CELL *&outp) {
Term m = Yap_CurrentModule(), t = tt.term();
t = Yap_StripModule(t, &m);
std::cerr << "Exception received by " << __func__ << "( " << tt.text()
<< ").\n Forwarded...\n\n";
if (IsVarTerm(t) || IsNumTerm(t)) {
if (IsVarTerm(t))
throw YAPError(SOURCE(), INSTANTIATION_ERROR, tt.term(), 0);

263
H/YapGFlagInfo.h
View File

@ -45,34 +45,43 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
YAP_FLAG(ALLOW_VARIABLE_NAME_AS_FUNCTOR_FLAG,
"allow_variable_name_as_functor", false, booleanFlag, "false",
NULL), /**<
boolean flag allows syntax such
NULL),/**<
boolean flag to enable syntax such
as
~~~
Tree(Node(L,node,R)) :-
Tree(L),
Tree(R).
Tree(R).
~~~
*/
/**< `answer_format` how to present answers, default is `~p`. */
YAP_FLAG(ANSWER_FORMAT_FLAG, "answer_format", true, isatom, "~p", NULL),
/**< how to present answers, default is `~p`. */
#if __APPLE__
YAP_FLAG(APPLE_FLAG, "apple", false, booleanFlag, "true", NULL), /**<
`read-only boolean, a machine running an Apple Operating System *
*
`read-only boolean, true if in a machine running an Apple Operating System *
*/
#endif
YAP_FLAG(ARCH_FLAG, "arch", false, isatom, YAP_ARCH, NULL),/**<
`apple`: read-only atom, it describes the ISA used in this version of YAP.
Available from YAP_AEH.
read-only atom, it describes the ISA used in this version of YAP.
Extracted from YAP_ARCH.
*/
YAP_FLAG(ARGV_FLAG, "argv", false, argv, "@boot", NULL),
/**< `arithmetic_exceptions`
YAP_FLAG(ARGV_FLAG, "argv", false, argv, "@boot", NULL), /**<
* read-only flag that stores the arguments passed from the calling program to the Prolog system,
*
* As an example, if YAP was called as follows:
* ~~~~~
* yap -l script -z main -- /home 33
* ~~~~
* the finall two arguments would be available as:
* ['home'. '33']
*/
YAP_FLAG(ARITHMETIC_EXCEPTIONS_FLAG, "arithmetic_exceptions", true,
booleanFlag, "true", NULL), /**< `
Read-write flag telling whether arithmetic exceptions generate
Prolog exceptions. If enabled:
@ -92,79 +101,81 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
It is `true` by default, but it is disabled by packages like CLP(BN) and
ProbLog.
*/
YAP_FLAG(ARITHMETIC_EXCEPTIONS_FLAG, "arithmetic_exceptions", true,
booleanFlag, "true", NULL),
YAP_FLAG(BACK_QUOTES_FLAG, "back_quotes", true, isatom, "true", NULL),
/**>
If _Value_ is unbound, tell whether a back 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 `string`
*/
YAP_FLAG(BACK_QUOTES_FLAG, "back_quotes", true, isatom, "true", NULL),
/**< `bounded` is iso
Read-only flag telling whether integers are bounded. The value depends
on whether YAP uses the GMP library or not.
*/
YAP_FLAG(BOUNDED_FLAG, "bounded", false, booleanFlag, "false", NULL),
YAP_FLAG(C_CC_FLAG, "c_cc", false, isatom, C_CC, NULL),
YAP_FLAG(C_CFLAGS_FLAG, "c_cflags", false, isatom, C_CFLAGS, NULL),
YAP_FLAG(C_LDFLAGS_FLAG, "c_ldflags", false, isatom, C_LDFLAGS, NULL),
YAP_FLAG(C_LIBPLSO_FLAG, "c_libplso", false, isatom, C_LIBPLSO, NULL),
YAP_FLAG(C_LIBS_FLAG, "c_libs", false, isatom, C_LIBS, NULL),
/**< `char_conversion is iso`
/**< `bounded` is iso
Read-only flag telling whether integers are bounded. The value depends
on whether YAP uses the GMP library or not.
*/
YAP_FLAG(C_CC_FLAG, "c_cc", false, isatom, C_CC, NULL),
/**< C compiler used to compile YAP. */
YAP_FLAG(C_CFLAGS_FLAG, "c_cflags", false, isatom, C_CFLAGS, NULL),
/**< preprocessor flags that were used to compile YAP */
YAP_FLAG(C_LDFLAGS_FLAG, "c_ldflags", false, isatom, C_LDFLAGS, NULL),
/**< flags used to link YAP */
YAP_FLAG(C_LIBPLSO_FLAG, "c_libplso", false, isatom, C_LIBPLSO, NULL),
/**< name of YAP as a dynamic librar */
YAP_FLAG(C_LIBS_FLAG, "c_libs", false, isatom, C_LIBS, NULL),
/**< libraries use to link YAP' */
YAP_FLAG(CHAR_CONVERSION_FLAG, "char_conversion", true, booleanFlag,
"false", NULL), /**<
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`.
*/
YAP_FLAG(CHAR_CONVERSION_FLAG, "char_conversion", true, booleanFlag,
"false", NULL),
/**< `character_escapes is iso `
YAP_FLAG(CHARACTER_ESCAPES_FLAG, "character_escapes", true, booleanFlag,
"true", NULL),/**<
Writable flag telling whether a character escapes are enables,
`true`, or disabled, `false`. The default value for this flag is
`true`. */
YAP_FLAG(CHARACTER_ESCAPES_FLAG, "character_escapes", true, booleanFlag,
"true", NULL),
YAP_FLAG(COLON_SETS_CALLING_CONTEXT_FLAG, "colon_sets_calling_context",
true, booleanFlag, "true", NULL),
/**< `compiled_at `
/**< use colom to set the caller module, and override the current default module. */
YAP_FLAG(COMPILED_AT_FLAG, "compiled_at", false, isatom, YAP_COMPILED_AT,
NULL), /**< `compiled_at `
Read-only flag that gives the time when the main YAP binary was compiled. It
is obtained staight from the __TIME__ macro, as defined in the C99.
*/
YAP_FLAG(COMPILED_AT_FLAG, "compiled_at", false, isatom, YAP_COMPILED_AT,
NULL),
/**< `debug is iso `
YAP_FLAG(DEBUG_FLAG, "debug", true, booleanFlag, "false", NULL),/**< `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.
*/
YAP_FLAG(DEBUG_FLAG, "debug", true, booleanFlag, "false", NULL),
YAP_FLAG(DEBUG_INFO_FLAG, "debug_info", true, booleanFlag, "true", NULL),
YAP_FLAG(DEBUG_INFO_FLAG, "debug_info", true, booleanFlag, "true", NULL),/**< generate debugging data */
YAP_FLAG(DEBUG_ON_ERROR_FLAG, "debug_on_error", true, booleanFlag, "true",
NULL),
/**< `debugger_print_options `
NULL), /**< call debugger on generating an error */
If bound, set the argument to the `write_term/3` options the
debugger uses to write terms. If unbound, show the current options.
*/
YAP_FLAG(DEBUGGER_PRINT_OPTIONS_FLAG, "debugger_print_options", true,
list_option,
"[quoted(true),numbervars(true),portrayed(true),max_depth(10)]",
NULL),
NULL), /**<
If bound, set the argument to the `write_term/3` options the
debugger uses to write terms. If unbound, show the current options.
*/
YAP_FLAG(DEBUGGER_SHOW_CONTEXT_FLAG, "debugger_show_context", true,
booleanFlag, "false", NULL),
/**< `dialect `
booleanFlag, "false", NULL), /**<
* always show the current source module while debugging. YAP will only show the calling module if not `prolog`oy `user`*/
YAP_FLAG(DIALECT_FLAG, "dialect", false, ro, "yap", NULL), /**<
Read-only flag that always returns `yap`.
*/
YAP_FLAG(DIALECT_FLAG, "dialect", false, ro, "yap", NULL),
/**< `discontiguous_warnings `
YAP_FLAG(DISCONTIGUOUS_WARNINGS_FLAG, "discontiguous_warnings", true,
booleanFlag, "true", NULL), /**<
If `true` (default `true`) YAP checks for definitions of the same predicate
that are separated by clauses for other predicates. This may indicate that
different procedures have the same name.
@ -173,39 +184,41 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
predicates.
*/
YAP_FLAG(DISCONTIGUOUS_WARNINGS_FLAG, "discontiguous_warnings", true,
booleanFlag, "true", NULL),
/**< `dollar_as_lower_case `
YAP_FLAG(DOLLAR_AS_LOWER_CASE_FLAG, "dollar_as_lower_case", true,
booleanFlag, "false", NULL), /**< `dollar_as_lower_case `
If `off` (default) consider the character `$` a control character, if
`on` consider `$` a lower case character.
*/
YAP_FLAG(DOLLAR_AS_LOWER_CASE_FLAG, "dollar_as_lower_case", true,
booleanFlag, "false", NULL),
/**< `double_quotes is iso `
YAP_FLAG(DOUBLE_QUOTES_FLAG, "double_quotes", true, isatom, "codes", dqs),/**< `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`. */
YAP_FLAG(DOUBLE_QUOTES_FLAG, "double_quotes", true, isatom, "codes", dqs),
YAP_FLAG(EDITOR_FLAG, "editor", true, isatom, "$EDITOR", NULL),
/**< `executable `
YAP_FLAG(EDITOR_FLAG, "editor", true, isatom, "$EDITOR", NULL), /**<
* Report the current default editor, as defined by the environment variable EDITOR.
*/
YAP_FLAG(EXECUTABLE_FLAG, "executable", false, executable, "@boot", NULL),/**<
Read-only flag. It unifies with an atom that gives the
original program path.
*/
YAP_FLAG(EXECUTABLE_FLAG, "executable", false, executable, "@boot", NULL),
/**< `fast `
YAP_FLAG(FAST_FLAG, "fast", true, booleanFlag, "false", NULL),/**< `fast `
If `on` allow fast machine code, if `off` (default) disable it. Only
available in experimental implementations.
*/
YAP_FLAG(FAST_FLAG, "fast", true, booleanFlag, "false", NULL),
YAP_FLAG(FILE_NAME_VARIABLES_FLAG, "file_name_variables", true, booleanFlag,
"true", NULL),
/**< + `float_format `
"true", NULL),/**< non-implemented */
YAP_FLAG(FLOAT_FORMAT_FLAG, "float_format", true, isatom, "%.16f", NULL),/**<
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()`
@ -213,21 +226,18 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
printed, `%g` will print all floats using 6 digits instead of the
default 15.
*/
YAP_FLAG(FLOAT_FORMAT_FLAG, "float_format", true, isatom, "%.16f", NULL),
/**< `gc`
YAP_FLAG(GC_FLAG, "gc", true, booleanFlag, "on", NULL),/**<
If `on` allow garbage collection (default), if `off` disable it.
*/
YAP_FLAG(GC_FLAG, "gc", true, booleanFlag, "on", NULL),
/**< `gc_margin `
YAP_FLAG(GC_MARGIN_FLAG, "gc_margin", true, nat, "0", gc_margin),/**<
Set or show the minimum free stack before starting garbage
collection. The default depends on total stack size.
*/
YAP_FLAG(GC_MARGIN_FLAG, "gc_margin", true, nat, "0", gc_margin),
/**< `gc_trace `
YAP_FLAG(GC_TRACE_FLAG, "gc_trace", true, isatom, "off", NULL),
/**< `
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
@ -235,17 +245,15 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
information on data-structures found during the garbage collection
process, namely, on choice-points.
*/
YAP_FLAG(GC_TRACE_FLAG, "gc_trace", true, isatom, "off", NULL),
/**< `generate_debug_info `
YAP_FLAG(GENERATE_DEBUGGING_INFO_FLAG, "generate_debug_info", true,
booleanFlag, "true", NULL),/**<
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.
*/
YAP_FLAG(GENERATE_DEBUGGING_INFO_FLAG, "generate_debug_info", true,
booleanFlag, "true", NULL),
YAP_FLAG(GMP_VERSION_FLAG, "gmp_version", false, isatom, "4.8.12", NULL),
YAP_FLAG(HALT_AFTER_CONSULT_FLAG, "halt_after_consult", false, booleanFlag,
"false", NULL),
@ -386,55 +394,48 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
Yap_InitReadline),
YAP_FLAG(REPORT_ERROR_FLAG, "report_error", true, booleanFlag, "true",
NULL),
/**<`resource_database`
YAP_FLAG(RESOURCE_DATABASE_FLAG, "resource_database", false, isatom,
YAP_BOOTSTRAP, NULL),/**<
Name of the resource file (saved-state or Prolog file) used to construct
the YAP
run-time environment.
*/
YAP_FLAG(RESOURCE_DATABASE_FLAG, "resource_database", false, isatom,
YAP_BOOTSTRAP, NULL),
/**<`saved_program`
YAP_FLAG(SAVED_PROGRAM_FLAG, "saved_program", false, booleanFlag, "false",
NULL), /**<
if `true` YAP booted from a `yss` file, usually `startup.yss'. If
`false`, YAP booted from a Prolog file, by default `boot.yap`.
*/
YAP_FLAG(SAVED_PROGRAM_FLAG, "saved_program", false, booleanFlag, "false",
NULL),
/**< `shared_object_extension `
Suffix associated with loadable code.
*/
YAP_FLAG(SHARED_OBJECT_EXTENSION_FLAG, "shared_object_extension", false,
isatom, SO_EXT, NULL),
/**< `shared_object_search_path `
YAP_FLAG(SHARED_OBJECT_SEARCH_PATH_FLAG, "shared_object_search_path", true,
isatom, SO_PATH, NULL),/**<
Name of the environment variable used by the system to search for shared
objects.
*/
YAP_FLAG(SHARED_OBJECT_SEARCH_PATH_FLAG, "shared_object_search_path", true,
isatom, SO_PATH, NULL),
/**< `single_quoted text is usuallly interpreted as atoms. This flagTerm
allows other inerpretations such as strings_contains_strings */
YAP_FLAG(SINGLE_QUOTES_FLAG, "single_quotes", true, isatom, "atom", sqf),
/**< single_quoted text is usuallly interpreted as atoms. This flagTerm
allows other inerpretations such as strings_contains_strings */
/**< `signals`
YAP_FLAG(SIGNALS_FLAG, "signals", true, booleanFlag, "true", NULL),/**<
If `true` (default) YAP handles Signals such as `^C`
(`SIGINT`).
*/
YAP_FLAG(SIGNALS_FLAG, "signals", true, booleanFlag, "true", NULL),
/**< `source`
YAP_FLAG(SOURCE_FLAG, "source", true, booleanFlag, "true", NULL),/**<
If `true` maintain the source for all clauses. Notice that this is trivially
supported for facts, and always supported for dynamic code.
*/
YAP_FLAG(SOURCE_FLAG, "source", true, booleanFlag, "true", NULL),
/**< `strict_iso `
YAP_FLAG(STRICT_ISO_FLAG, "strict_iso", true, booleanFlag, "false", NULL),/**<
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
@ -455,52 +456,51 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
depends on a Prolog's platform specific features.
*/
YAP_FLAG(STRICT_ISO_FLAG, "strict_iso", true, booleanFlag, "false", NULL),
/**< `system_options `
YAP_FLAG(SYSTEM_OPTIONS_FLAG, "system_options", false, options,
SYSTEM_OPTIONS, NULL), /**<
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`.
*/
YAP_FLAG(SYSTEM_OPTIONS_FLAG, "system_options", false, options,
SYSTEM_OPTIONS, NULL),
YAP_FLAG(SYSTEM_THREAD_ID_FLAG, "system_thread_id", false, sys_thread_id,
"@boot", NULL),
/**< `tabling_mode`
YAP_FLAG(TABLING_MODE_FLAG, "tabling_mode", true, isatom, "[]", NULL),/**< `tabling_mode`
Sets or reads the tabling mode for all tabled predicates. Please
(see Tabling) for the list of options.
*/
YAP_FLAG(TABLING_MODE_FLAG, "tabling_mode", true, isatom, "[]", NULL),
YAP_FLAG(THREADS_FLAG, "threads", false, ro, "MAX_THREADS", NULL),
YAP_FLAG(TIMEZONE_FLAG, "timezone", false, ro, "18000", NULL),
YAP_FLAG(TOPLEVEL_PRINT_ANON_FLAG, "toplevel_print_anon", true, booleanFlag,
"true", NULL),
/**< `toplevel_hook `
YAP_FLAG(TOPLEVEL_PRINT_OPTIONS_FLAG, "toplevel_print_options", true,
list_option, "[quoted(true),numbervars(true),portrayed(true)]",
NULL), /**<
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.
*/
YAP_FLAG(TOPLEVEL_PRINT_OPTIONS_FLAG, "toplevel_print_options", true,
list_option, "[quoted(true),numbervars(true),portrayed(true)]",
NULL),
YAP_FLAG(TOPLEVEL_PROMPT_FLAG, "toplevel_prompt", true, isatom, "?- ",
mkprompt),
YAP_FLAG(TTY_CONTROL_FLAG, "tty_control", true, booleanFlag, "true", NULL),
/**< `unix`
YAP_FLAG(UNIX_FLAG, "unix", false, ro, "true", NULL),/**<
Read-only BooleanFlag 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`.
*/
YAP_FLAG(UNIX_FLAG, "unix", false, ro, "true", NULL),
/**< `update_semantics `
YAP_FLAG(UPDATE_SEMANTICS_FLAG, "update_semantics", true, isatom, "logical",
NULL), /**< `update_semantics `
Define whether YAP should follow `immediate` update
semantics, as in C-Prolog (default), `logical` update semantics,
@ -509,10 +509,8 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
procedures follow logical semantics but the internal data base still
follows immediate semantics.
*/
YAP_FLAG(UPDATE_SEMANTICS_FLAG, "update_semantics", true, isatom, "logical",
NULL),
/**<
`user_flags `
YAP_FLAG(USER_FLAGS_FLAG, "user_flags", true, isatom, "error", NULL),/**<
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
@ -522,87 +520,82 @@ opportunity. Initial value is 10,000. May be changed. A value of 0
are encouraged to use `create_prolog_flag/3` to create flags for their
library.
*/
YAP_FLAG(USER_FLAGS_FLAG, "user_flags", true, isatom, "error", NULL),
/**< `unknown is iso`
YAP_FLAG(UNKNOWN_FLAG, "unknown", true, isatom, "error", Yap_unknown), /**< `unknown is iso`
Corresponds to calling the unknown/2 built-in. Possible ISO values
are `error`, `fail`, and `warning`. Yap includes the following extensions:
`fast_fail` does not invoke any handler.
*/
YAP_FLAG(UNKNOWN_FLAG, "unknown", true, isatom, "error", Yap_unknown),
YAP_FLAG(VARIABLE_NAMES_MAY_END_WITH_QUOTES_FLAG,
"variable_names_may_end_with_quotes", true, booleanFlag, "false",
NULL),
/**< `verbose `
YAP_FLAG(VERBOSE_FLAG, "verbose", true, isatom, "normal", NULL),/**<
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.
*/
YAP_FLAG(VERBOSE_FLAG, "verbose", true, isatom, "normal", NULL),
YAP_FLAG(VERBOSE_AUTOLOAD_FLAG, "verbose_autoload", true, booleanFlag,
"false", NULL),
/**< `verbose_file_search `
YAP_FLAG(VERBOSE_FILE_SEARCH_FLAG, "verbose_file_search", true, booleanFlag,
"false", NULL),/**<
If `true` allow printing of informational messages when
searching for file names. If `false` disable printing these messages. It
is `false` by default except if YAP is booted with the `-L`
flag.
*/
YAP_FLAG(VERBOSE_FILE_SEARCH_FLAG, "verbose_file_search", true, booleanFlag,
"false", NULL),
/**< `verbose_load `
YAP_FLAG(VERBOSE_LOAD_FLAG, "verbose_load", true, isatom, "normal", NULL),/**<
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.
*/
YAP_FLAG(VERBOSE_LOAD_FLAG, "verbose_load", true, isatom, "normal", NULL),
/**< `version_data `
YAP_FLAG(VERSION_FLAG, "version", false, nat, YAP_NUMERIC_VERSION, NULL),/**<
Read-only flag that unifies with a number of the form
`_Major_ * 100000 + _Minor_ *100 + _Patch_`, where
_Major_ is the major version, _Minor_ is the minor version,
and _Patch_ is the patch number.
*/
YAP_FLAG(VERSION_FLAG, "version", false, nat, YAP_NUMERIC_VERSION, NULL),
/**<
`version ` Read-only flag that returns a compound term with the
YAP_FLAG(VERSION_DATA_FLAG, "version_data", false, ro, YAP_TVERSION, NULL), /**<
Read-only flag that returns a compound term with the
current version of YAP. The term will have the name `yap` and arity 4, the
first argument will be the major version, the second the minor version, the
third the patch number, and the last one is reserved.
*/
YAP_FLAG(VERSION_DATA_FLAG, "version_data", false, ro, YAP_TVERSION, NULL),
/**< `version_git `
`
YAP_FLAG(VERSION_GIT_FLAG, "version_git", false, isatom, YAP_GIT_HEAD,
NULL), /**<
this is the unique identifier for the last commit of the current GIT HEAD,
it xan be used to identify versions that differ on small (or large) updates.
*/
YAP_FLAG(VERSION_GIT_FLAG, "version_git", false, isatom, YAP_GIT_HEAD,
NULL),
YAP_FLAG(WRITE_ATTRIBUTES_FLAG, "write_attributes", true, isatom, "ignore",
NULL),
#if __WINDOWS__
/**< `windows`
YAP_FLAG(WINDOWS_FLAG, "windows", false, ro, "true", NULL), /**< `windows`
Read-only booleanFlag flag that unifies with `true` if YAP is
running on an Windows machine.
*/
YAP_FLAG(WINDOWS_FLAG, "windows", false, ro, "true", NULL),
#endif
/**< `write_strings `
#endif
YAP_FLAG(WRITE_STRINGS_FLAG, "write_strings", true, booleanFlag, "false",
NULL) , /**<
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`.
*/
YAP_FLAG(WRITE_STRINGS_FLAG, "write_strings", true, booleanFlag, "false",
NULL),
END_GLOBAL_FLAGS

4
os/iopreds.c
View File

@ -1584,7 +1584,7 @@ int Yap_OpenStream(Term tin, const char *io_mode, Term user_name,
} else {
st->file = fopen(fname, io_mode);
}
if (!st->file) {
if (!st->file && !st->vfs) {
fprintf(stderr, "trying %s\n", fname);
PlIOError(EXISTENCE_ERROR_SOURCE_SINK, tin, "%s", fname);
/* extract BACK info passed through the stream descriptor */
@ -1629,7 +1629,7 @@ int Yap_OpenStream(Term tin, const char *io_mode, Term user_name,
pop_text_stack(i);
}
}
if (st->file == NULL) {
if (st->file == NULL && st->vfs == NULL) {
if (!strchr(io_mode, 'b') && binary_file(fname)) {
UNLOCK(st->streamlock);
if (errno == ENOENT && !strchr(io_mode, 'r')) {

6
packages/python/pyio.c
View File

@ -62,13 +62,11 @@ static void *py_open(VFS_t *me, const char *name, const char *io_mode,
st->user_name = TermOutStream;
} else if (strcmp(name, "sys.stderr") == 0) {
st->user_name = TermErrStream;
} else if (strcmp(name, "input") == 0) {
pystream = PyObject_Call(pystream, PyTuple_New(0), NULL);
} else {
st->user_name = YAP_MkAtomTerm(st->name);
}
// we assume object is already open, so there is no need to open it.
if (PyCallable_Check(pystream))
st->u.private_data = PyObject_Call(pystream, PyTuple_New(0), NULL);
else
st->u.private_data = pystream;
st->vfs = me;
python_release_GIL(ctk);

4
packages/python/yap_kernel/yap_ipython/prolog/jupyter.yap
View File

@ -69,10 +69,10 @@ nb_setval(jupyter_cell, false),
).
streams(true) :-
nb_setval(jupyter_cell, true),
open('/python/input', read, _Input, [alias(user_input),bom(false)]),
% open('/python/input', read, _Input, [alias(user_input),bom(false)]),
open('/python/sys.stdout', append, _Output, [alias(user_output)]),
open('/python/sys.stderr', append, _Error, [alias(user_error)]),
set_prolog_flag(user_input,_Input),
% set_prolog_flag(user_input,_Input),
set_prolog_flag(user_output,_Output),
set_prolog_flag(user_error,_Error).

2
pl/dialect.yap
View File

@ -6,7 +6,7 @@
*
* @brief support Prolog dialects
*
* @defgroup Dialects Compatibilty with other Prolog dialects
* @defgroup Dialects Compatibility with other Prolog dialects
* @ingroup extensions
* @{
* @brief Prolog dialects

2
pl/error.yap
View File

@ -26,7 +26,7 @@
/**
@defgroup SWI-error High-level error testing.
@ingroup builtins
@ingroup Deb_Interaction
This SWI module provides predicates to simplify error generation and
checking. Adapted to use YAP built-ins.