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

small bugs, especiall in error processing

Browse Source
This commit is contained in:
Vitor Santos Costa 2016-12-05 14:50:04 -06:00
parent 6a4dbd91ec
commit 4f423dc16a
13 changed files with 275 additions and 188 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
C/arith1.c
View File

@ -1075,4 +1075,3 @@ Yap_ReInitUnaryExps(void)
{ {
return TRUE; return TRUE;
} }

20
C/cmppreds.c
View File

@ -382,7 +382,7 @@ inline static Int compare(Term t1, Term t2) /* compare terms t1 and t2 */
if (f != FunctorDot) if (f != FunctorDot)
return strcmp(".", RepAtom(NameOfFunctor(f))->StrOfAE); return strcmp(".", RepAtom(NameOfFunctor(f))->StrOfAE);
else { else {
return compare_complex(RepPair(t1) - 1, RepPair(t1) + 1, RepAppl(t2) ); return compare_complex(RepPair(t1) - 1, RepPair(t1) + 1, RepAppl(t2));
} }
} }
} }
@ -595,10 +595,12 @@ inline static Int flt_cmp(Float dif) {
static Int a_cmp(Term t1, Term t2 USES_REGS) { static Int a_cmp(Term t1, Term t2 USES_REGS) {
if (IsVarTerm(t1)) { if (IsVarTerm(t1)) {
Yap_ThrowError( INSTANTIATION_ERROR, t1, 4, "while doing arithmetic comparison" ); Yap_ArithError(INSTANTIATION_ERROR, t1,
"while doing arithmetic comparison");
} }
if (IsVarTerm(t2)) { if (IsVarTerm(t2)) {
Yap_ThrowError( INSTANTIATION_ERROR, t1, 4, "while doing arithmetic comparison" ); Yap_ArithError(INSTANTIATION_ERROR, t2,
"while doing arithmetic comparison");
} }
if (IsFloatTerm(t1) && IsFloatTerm(t2)) { if (IsFloatTerm(t1) && IsFloatTerm(t2)) {
return flt_cmp(FloatOfTerm(t1) - FloatOfTerm(t2)); return flt_cmp(FloatOfTerm(t1) - FloatOfTerm(t2));
@ -621,7 +623,8 @@ static Int a_cmp(Term t1, Term t2 USES_REGS) {
Float f2 = FloatOfTerm(t2); Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN #if HAVE_ISNAN
if (isnan(f2)) { if (isnan(f2)) {
Yap_ThrowError( EVALUATION_ERROR_UNDEFINED, t2, 4, "trying to evaluate nan" ); Yap_ArithError(EVALUATION_ERROR_UNDEFINED, t2,
"trying to evaluate nan");
} }
#endif #endif
return flt_cmp(i1 - f2); return flt_cmp(i1 - f2);
@ -636,7 +639,8 @@ static Int a_cmp(Term t1, Term t2 USES_REGS) {
Float f1 = FloatOfTerm(t1); Float f1 = FloatOfTerm(t1);
#if HAVE_ISNAN #if HAVE_ISNAN
if (isnan(f1)) { if (isnan(f1)) {
Yap_ThrowError( EVALUATION_ERROR_UNDEFINED, t1, 4, "trying to evaluate nan" ); Yap_ArithError(EVALUATION_ERROR_UNDEFINED, t1,
"trying to evaluate nan");
} }
#endif #endif
t2 = Yap_Eval(t2); t2 = Yap_Eval(t2);
@ -652,7 +656,8 @@ static Int a_cmp(Term t1, Term t2 USES_REGS) {
Float f2 = FloatOfTerm(t2); Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN #if HAVE_ISNAN
if (isnan(f2)) { if (isnan(f2)) {
Yap_ThrowError( EVALUATION_ERROR_UNDEFINED, t2, 4, "trying to evaluate nan" ); Yap_ArithError(EVALUATION_ERROR_UNDEFINED, t2,
"trying to evaluate nan");
} }
#endif #endif
return flt_cmp(f1 - f2); return flt_cmp(f1 - f2);
@ -674,7 +679,8 @@ static Int a_cmp(Term t1, Term t2 USES_REGS) {
Float f2 = FloatOfTerm(t2); Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN #if HAVE_ISNAN
if (isnan(f2)) { if (isnan(f2)) {
Yap_ThrowError( EVALUATION_ERROR_UNDEFINED, t2, 4, "trying to evaluate nan" ); Yap_ArithError(EVALUATION_ERROR_UNDEFINED, t2,
"trying to evaluate nan");
} }
#endif #endif
return Yap_gmp_cmp_big_float(t1, f2); return Yap_gmp_cmp_big_float(t1, f2);

1
C/exec.c
View File

@ -1446,7 +1446,6 @@ static bool exec_absmi(bool top, yap_reset_t reset_mode USES_REGS) {
/* must be done here, otherwise siglongjmp will clobber all the /* must be done here, otherwise siglongjmp will clobber all the
* registers * registers
*/ */
Yap_Error(LOCAL_Error_TYPE, TermNil, NULL);
/* reset the registers so that we don't have trash in abstract /* reset the registers so that we don't have trash in abstract
* machine */ * machine */
Yap_set_fpu_exceptions( Yap_set_fpu_exceptions(

20
C/scanner.c
View File

@ -1191,7 +1191,7 @@ Term Yap_tokRep(void *tokptre) {
case Var_tok: { case Var_tok: {
Term t[2]; Term t[2];
VarEntry *varinfo = (VarEntry *)info; VarEntry *varinfo = (VarEntry *)info;
if ((t[0]= varinfo->VarAdr) == TermNil) { if ((t[0] = varinfo->VarAdr) == TermNil) {
t[0] = varinfo->VarAdr = MkVarTerm(); t[0] = varinfo->VarAdr = MkVarTerm();
} }
t[1] = MkAtomTerm((Atom)(varinfo->VarRep)); t[1] = MkAtomTerm((Atom)(varinfo->VarRep));
@ -1211,8 +1211,7 @@ Term Yap_tokRep(void *tokptre) {
return TermDot; return TermDot;
} }
const char *Yap_tokText(void *tokptre) {
const char * Yap_tokText(void *tokptre) {
CACHE_REGS CACHE_REGS
TokEntry *tokptr = tokptre; TokEntry *tokptr = tokptre;
Term info = tokptr->TokInfo; Term info = tokptr->TokInfo;
@ -1233,24 +1232,24 @@ const char * Yap_tokText(void *tokptre) {
char *s = Malloc(36); char *s = Malloc(36);
snprintf(s, 35, Int_FORMAT, IntegerOfTerm(info)); snprintf(s, 35, Int_FORMAT, IntegerOfTerm(info));
return s; return s;
}else if (IsFloatTerm(info)) { } else if (IsFloatTerm(info)) {
char *s = Malloc( 64); char *s = Malloc(64);
snprintf(s, 63, "%6g", FloatOfTerm(info)); snprintf(s, 63, "%6g", FloatOfTerm(info));
return s; return s;
} else { } else {
size_t len = Yap_gmp_to_size(info,10); size_t len = Yap_gmp_to_size(info, 10);
char *s = Malloc(len+2); char *s = Malloc(len + 2);
return Yap_gmp_to_string(info,s, len+1,10); return Yap_gmp_to_string(info, s, len + 1, 10);
} }
break; break;
case Var_tok: case Var_tok:
if (info == 0) return "[]"; if (info == 0)
return "[]";
return ((Atom)info)->StrOfAE; return ((Atom)info)->StrOfAE;
} }
return "."; return ".";
} }
static void open_comment(int ch, StreamDesc *inp_stream USES_REGS) { static void open_comment(int ch, StreamDesc *inp_stream USES_REGS) {
CELL *h0 = HR; CELL *h0 = HR;
HR += 5; HR += 5;
@ -1972,7 +1971,6 @@ TokEntry *Yap_tokenizer(struct stream_desc *inp_stream, bool store_comments,
return (l); return (l);
} }
void Yap_clean_tokenizer(TokEntry *tokstart, VarEntry *vartable, void Yap_clean_tokenizer(TokEntry *tokstart, VarEntry *vartable,
VarEntry *anonvartable) { VarEntry *anonvartable) {
CACHE_REGS CACHE_REGS

3
H/ATOMS
View File

@ -294,6 +294,7 @@ A PastEndOfStream N "past_end_of_stream"
A PermissionError N "permission_error" A PermissionError N "permission_error"
A Pi N "pi" A Pi N "pi"
A Pipe N "pipe" A Pipe N "pipe"
A Priority N "priority"
A Plus N "+" A Plus N "+"
A Pointer N "pointer" A Pointer N "pointer"
A Portray F "portray" A Portray F "portray"
@ -546,11 +547,13 @@ F NBQueue Queue 4
F Not Not 1 F Not Not 1
F Obj Obj 1 F Obj Obj 1
F Or Semic 2 F Or Semic 2
F Output Output 1
F PermissionError PermissionError 3 F PermissionError PermissionError 3
F Plus Plus 2 F Plus Plus 2
F Portray Portray 1 F Portray Portray 1
F PrintMessage PrintMessage 2 F PrintMessage PrintMessage 2
F Procedure Procedure 5 F Procedure Procedure 5
F Priority Priority 1
F PrologConstraint Prolog 2 F PrologConstraint Prolog 2
F ProtectStack ProtectStack 4 F ProtectStack ProtectStack 4
F Query Query 1 F Query Query 1

2
H/YapFlags.h
View File

@ -204,7 +204,7 @@ typedef struct x_el {
} xarg; } xarg;
typedef struct struct_param { typedef struct struct_param {
char *name; const char *name;
flag_func type; flag_func type;
int id; int id;
} param_t; } param_t;

2
H/absmi.h
View File

@ -2455,7 +2455,7 @@ extern yamop *headoftrace;
#define Yap_AsmError(e, d) \ #define Yap_AsmError(e, d) \
{ \ { \
saveregs(); \ saveregs(); \
Yap_ThrowError(e, d, 4, ""); \ Yap_ThrowError(e, d, "while exwcuting inlined built-in"); \
setregs(); \ setregs(); \
} }

2
H/eval.h
View File

@ -407,7 +407,7 @@ yamop *Yap_EvalError__(const char *, const char *, int, yap_error_number, Term,
...); ...);
#define Yap_ArithError(id, t, ...) \ #define Yap_ArithError(id, t, ...) \
Yap_ThrowError__(__FILE__, __FUNCTION__, __LINE__, id, t, 2, __VA_ARGS__) Yap_ThrowError__(__FILE__, __FUNCTION__, __LINE__, id, t, __VA_ARGS__)
#define Yap_BinError(id) \ #define Yap_BinError(id) \
Yap_Error__(__FILE__, __FUNCTION__, __LINE__, id, 0L, "") Yap_Error__(__FILE__, __FUNCTION__, __LINE__, id, 0L, "")
#define Yap_AbsmiError(id) \ #define Yap_AbsmiError(id) \

3
H/generated/iatoms.h
View File

@ -289,6 +289,7 @@
AtomPermissionError = Yap_LookupAtom("permission_error"); TermPermissionError = MkAtomTerm(AtomPermissionError); AtomPermissionError = Yap_LookupAtom("permission_error"); TermPermissionError = MkAtomTerm(AtomPermissionError);
AtomPi = Yap_LookupAtom("pi"); TermPi = MkAtomTerm(AtomPi); AtomPi = Yap_LookupAtom("pi"); TermPi = MkAtomTerm(AtomPi);
AtomPipe = Yap_LookupAtom("pipe"); TermPipe = MkAtomTerm(AtomPipe); AtomPipe = Yap_LookupAtom("pipe"); TermPipe = MkAtomTerm(AtomPipe);
AtomPriority = Yap_LookupAtom("priority"); TermPriority = MkAtomTerm(AtomPriority);
AtomPlus = Yap_LookupAtom("+"); TermPlus = MkAtomTerm(AtomPlus); AtomPlus = Yap_LookupAtom("+"); TermPlus = MkAtomTerm(AtomPlus);
AtomPointer = Yap_LookupAtom("pointer"); TermPointer = MkAtomTerm(AtomPointer); AtomPointer = Yap_LookupAtom("pointer"); TermPointer = MkAtomTerm(AtomPointer);
AtomPortray = Yap_FullLookupAtom("portray"); TermPortray = MkAtomTerm(AtomPortray); AtomPortray = Yap_FullLookupAtom("portray"); TermPortray = MkAtomTerm(AtomPortray);
@ -541,11 +542,13 @@
FunctorNot = Yap_MkFunctor(AtomNot,1); FunctorNot = Yap_MkFunctor(AtomNot,1);
FunctorObj = Yap_MkFunctor(AtomObj,1); FunctorObj = Yap_MkFunctor(AtomObj,1);
FunctorOr = Yap_MkFunctor(AtomSemic,2); FunctorOr = Yap_MkFunctor(AtomSemic,2);
FunctorOutput = Yap_MkFunctor(AtomOutput,1);
FunctorPermissionError = Yap_MkFunctor(AtomPermissionError,3); FunctorPermissionError = Yap_MkFunctor(AtomPermissionError,3);
FunctorPlus = Yap_MkFunctor(AtomPlus,2); FunctorPlus = Yap_MkFunctor(AtomPlus,2);
FunctorPortray = Yap_MkFunctor(AtomPortray,1); FunctorPortray = Yap_MkFunctor(AtomPortray,1);
FunctorPrintMessage = Yap_MkFunctor(AtomPrintMessage,2); FunctorPrintMessage = Yap_MkFunctor(AtomPrintMessage,2);
FunctorProcedure = Yap_MkFunctor(AtomProcedure,5); FunctorProcedure = Yap_MkFunctor(AtomProcedure,5);
FunctorPriority = Yap_MkFunctor(AtomPriority,1);
FunctorPrologConstraint = Yap_MkFunctor(AtomProlog,2); FunctorPrologConstraint = Yap_MkFunctor(AtomProlog,2);
FunctorProtectStack = Yap_MkFunctor(AtomProtectStack,4); FunctorProtectStack = Yap_MkFunctor(AtomProtectStack,4);
FunctorQuery = Yap_MkFunctor(AtomQuery,1); FunctorQuery = Yap_MkFunctor(AtomQuery,1);

3
H/generated/ratoms.h
View File

@ -289,6 +289,7 @@
AtomPermissionError = AtomAdjust(AtomPermissionError); TermPermissionError = MkAtomTerm(AtomPermissionError); AtomPermissionError = AtomAdjust(AtomPermissionError); TermPermissionError = MkAtomTerm(AtomPermissionError);
AtomPi = AtomAdjust(AtomPi); TermPi = MkAtomTerm(AtomPi); AtomPi = AtomAdjust(AtomPi); TermPi = MkAtomTerm(AtomPi);
AtomPipe = AtomAdjust(AtomPipe); TermPipe = MkAtomTerm(AtomPipe); AtomPipe = AtomAdjust(AtomPipe); TermPipe = MkAtomTerm(AtomPipe);
AtomPriority = AtomAdjust(AtomPriority); TermPriority = MkAtomTerm(AtomPriority);
AtomPlus = AtomAdjust(AtomPlus); TermPlus = MkAtomTerm(AtomPlus); AtomPlus = AtomAdjust(AtomPlus); TermPlus = MkAtomTerm(AtomPlus);
AtomPointer = AtomAdjust(AtomPointer); TermPointer = MkAtomTerm(AtomPointer); AtomPointer = AtomAdjust(AtomPointer); TermPointer = MkAtomTerm(AtomPointer);
AtomPortray = AtomAdjust(AtomPortray); TermPortray = MkAtomTerm(AtomPortray); AtomPortray = AtomAdjust(AtomPortray); TermPortray = MkAtomTerm(AtomPortray);
@ -541,11 +542,13 @@
FunctorNot = FuncAdjust(FunctorNot); FunctorNot = FuncAdjust(FunctorNot);
FunctorObj = FuncAdjust(FunctorObj); FunctorObj = FuncAdjust(FunctorObj);
FunctorOr = FuncAdjust(FunctorOr); FunctorOr = FuncAdjust(FunctorOr);
FunctorOutput = FuncAdjust(FunctorOutput);
FunctorPermissionError = FuncAdjust(FunctorPermissionError); FunctorPermissionError = FuncAdjust(FunctorPermissionError);
FunctorPlus = FuncAdjust(FunctorPlus); FunctorPlus = FuncAdjust(FunctorPlus);
FunctorPortray = FuncAdjust(FunctorPortray); FunctorPortray = FuncAdjust(FunctorPortray);
FunctorPrintMessage = FuncAdjust(FunctorPrintMessage); FunctorPrintMessage = FuncAdjust(FunctorPrintMessage);
FunctorProcedure = FuncAdjust(FunctorProcedure); FunctorProcedure = FuncAdjust(FunctorProcedure);
FunctorPriority = FuncAdjust(FunctorPriority);
FunctorPrologConstraint = FuncAdjust(FunctorPrologConstraint); FunctorPrologConstraint = FuncAdjust(FunctorPrologConstraint);
FunctorProtectStack = FuncAdjust(FunctorProtectStack); FunctorProtectStack = FuncAdjust(FunctorProtectStack);
FunctorQuery = FuncAdjust(FunctorQuery); FunctorQuery = FuncAdjust(FunctorQuery);

5
H/generated/tatoms.h
View File

@ -289,6 +289,7 @@ EXTERNAL Atom AtomPastEndOfStream; EXTERNAL Term TermPastEndOfStream;
EXTERNAL Atom AtomPermissionError; EXTERNAL Term TermPermissionError; EXTERNAL Atom AtomPermissionError; EXTERNAL Term TermPermissionError;
EXTERNAL Atom AtomPi; EXTERNAL Term TermPi; EXTERNAL Atom AtomPi; EXTERNAL Term TermPi;
EXTERNAL Atom AtomPipe; EXTERNAL Term TermPipe; EXTERNAL Atom AtomPipe; EXTERNAL Term TermPipe;
EXTERNAL Atom AtomPriority; EXTERNAL Term TermPriority;
EXTERNAL Atom AtomPlus; EXTERNAL Term TermPlus; EXTERNAL Atom AtomPlus; EXTERNAL Term TermPlus;
EXTERNAL Atom AtomPointer; EXTERNAL Term TermPointer; EXTERNAL Atom AtomPointer; EXTERNAL Term TermPointer;
EXTERNAL Atom AtomPortray; EXTERNAL Term TermPortray; EXTERNAL Atom AtomPortray; EXTERNAL Term TermPortray;
@ -645,6 +646,8 @@ EXTERNAL Functor FunctorObj;
EXTERNAL Functor FunctorOr; EXTERNAL Functor FunctorOr;
EXTERNAL Functor FunctorOutput;
EXTERNAL Functor FunctorPermissionError; EXTERNAL Functor FunctorPermissionError;
EXTERNAL Functor FunctorPlus; EXTERNAL Functor FunctorPlus;
@ -655,6 +658,8 @@ EXTERNAL Functor FunctorPrintMessage;
EXTERNAL Functor FunctorProcedure; EXTERNAL Functor FunctorProcedure;
EXTERNAL Functor FunctorPriority;
EXTERNAL Functor FunctorPrologConstraint; EXTERNAL Functor FunctorPrologConstraint;
EXTERNAL Functor FunctorProtectStack; EXTERNAL Functor FunctorProtectStack;

40
os/iopreds.c
View File

@ -1,19 +1,19 @@
/************************************************************************* /*************************************************************************
* * * *
* YAP Prolog * * YAP Prolog *
* * * *
* Yap Prolog was developed at NCCUP - Universidade do Porto * * Yap Prolog was developed at NCCUP - Universidade do Porto *
* * * *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 * * Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* * * *
************************************************************************** **************************************************************************
* * * *
* File: iopreds.c * * File: iopreds.c *
* Last rev: 5/2/88 * * Last rev: 5/2/88 *
* mods: * * mods: *
* comments: Input/Output C implemented predicates * * comments: Input/Output C implemented predicates *
* * * *
*************************************************************************/ *************************************************************************/
#ifdef SCCS #ifdef SCCS
static char SccsId[] = "%W% %G%"; static char SccsId[] = "%W% %G%";
#endif #endif
@ -545,12 +545,14 @@ static int NullPutc(int sno, int ch) {
} }
int ResetEOF(StreamDesc *s) { int ResetEOF(StreamDesc *s) {
s->status &= ~Push_Eof_Stream_f;
if (s->status & Eof_Error_Stream_f) { if (s->status & Eof_Error_Stream_f) {
Yap_Error(PERMISSION_ERROR_INPUT_PAST_END_OF_STREAM, MkAtomTerm(s->name), Atom name = s->name;
// Yap_CloseStream(s - GLOBAL_Stream);
Yap_Error(PERMISSION_ERROR_INPUT_PAST_END_OF_STREAM, MkAtomTerm(name),
"GetC"); "GetC");
return FALSE; return FALSE;
} else if (s->status & Reset_Eof_Stream_f) { } else if (s->status & Reset_Eof_Stream_f) {
s->status &= ~Push_Eof_Stream_f;
/* reset the eof indicator on file */ /* reset the eof indicator on file */
if (feof(s->file)) if (feof(s->file))
clearerr(s->file); clearerr(s->file);
@ -654,9 +656,9 @@ int post_process_weof(StreamDesc *s) {
* *
* @return EOF * @return EOF
*/ */
int EOFPeek(int sno) { return EOFGetc(sno); } int EOFPeek(int sno) { return EOFCHAR; }
int EOFWPeek(int sno) { return EOFWGetc(sno); } int EOFWPeek(int sno) { return EOFCHAR; }
/* standard routine, it should read from anything pointed by a FILE *. /* standard routine, it should read from anything pointed by a FILE *.
It could be made more efficient by doing our own buffering and avoiding It could be made more efficient by doing our own buffering and avoiding

91
os/readterm.c
View File

@ -211,19 +211,31 @@ static const param_t read_defs[] = {READ_DEFS()};
static Term add_output(Term t, Term tail) { static Term add_output(Term t, Term tail) {
Term topt = Yap_MkNewApplTerm(Yap_MkFunctor(AtomOutput, 1), 1); Term topt = Yap_MkNewApplTerm(Yap_MkFunctor(AtomOutput, 1), 1);
Yap_unify(t, ArgOfTerm(1, topt)); Yap_unify(t, ArgOfTerm(1, topt));
if (IsPairTerm(tail) || tail == TermNil) {
return MkPairTerm(topt, tail); return MkPairTerm(topt, tail);
} else {
return MkPairTerm(topt, MkPairTerm(tail, TermNil));
}
} }
static Term add_names(Term t, Term tail) { static Term add_names(Term t, Term tail) {
Term topt = Yap_MkNewApplTerm(Yap_MkFunctor(AtomVariableNames, 1), 1); Term topt = Yap_MkNewApplTerm(Yap_MkFunctor(AtomVariableNames, 1), 1);
Yap_unify(t, ArgOfTerm(1, topt)); Yap_unify(t, ArgOfTerm(1, topt));
if (IsPairTerm(tail) || tail == TermNil) {
return MkPairTerm(topt, tail); return MkPairTerm(topt, tail);
} else {
return MkPairTerm(topt, MkPairTerm(tail, TermNil));
}
} }
static Term add_priority(Term t, Term tail) { static Term add_priority(Term t, Term tail) {
Term topt = Yap_MkNewApplTerm(Yap_MkFunctor(AtomPriority, 1), 1); Term topt = Yap_MkNewApplTerm(Yap_MkFunctor(AtomPriority, 1), 1);
Yap_unify(t, ArgOfTerm(1, topt)); Yap_unify(t, ArgOfTerm(1, topt));
if (IsPairTerm(tail) || tail == TermNil) {
return MkPairTerm(topt, tail); return MkPairTerm(topt, tail);
} else {
return MkPairTerm(topt, MkPairTerm(tail, TermNil));
}
} }
/** /**
@ -372,7 +384,8 @@ static xarg *setReadEnv(Term opts, FEnv *fe, struct renv *re, int inp_stream) {
fe->cmod = CurrentModule; fe->cmod = CurrentModule;
if (fe->cmod == TermProlog) if (fe->cmod == TermProlog)
fe->cmod = PROLOG_MODULE; fe->cmod = PROLOG_MODULE;
} if (args[READ_BACKQUOTED_STRING].used) { }
if (args[READ_BACKQUOTED_STRING].used) {
if (!setBackQuotesFlag(args[READ_BACKQUOTED_STRING].tvalue)) { if (!setBackQuotesFlag(args[READ_BACKQUOTED_STRING].tvalue)) {
return false; return false;
} }
@ -586,7 +599,7 @@ static bool complete_processing(FEnv *fe, TokEntry *tokstart) {
CACHE_REGS CACHE_REGS
Term v1, v2, v3, vc, tp; Term v1, v2, v3, vc, tp;
if (fe->t0 && !(Yap_unify(fe->t, fe->t0))) if (fe->t0 && fe->t && !(Yap_unify(fe->t, fe->t0)))
return false; return false;
if (fe->t && fe->vp) if (fe->t && fe->vp)
@ -625,7 +638,7 @@ static bool complete_clause_processing(FEnv *fe, TokEntry *tokstart) {
CACHE_REGS CACHE_REGS
Term v_vp, v_vnames, v_comments, v_pos; Term v_vp, v_vnames, v_comments, v_pos;
if (fe->t0 && !Yap_unify(fe->t, fe->t0)) if (fe->t0 & fe->t && !Yap_unify(fe->t, fe->t0))
return false; return false;
if (fe->t && fe->vp) if (fe->t && fe->vp)
v_vp = get_variables(fe, tokstart); v_vp = get_variables(fe, tokstart);
@ -682,6 +695,8 @@ static parser_state_t scanEOF(FEnv *fe, int inp_stream) {
return YAP_PARSING_FINISHED; return YAP_PARSING_FINISHED;
} }
// a :- <eof> // a :- <eof>
if (GLOBAL_Stream[inp_stream].status & Past_Eof_Stream_f)
return YAP_PARSING_ERROR;
/* we need to force the next read to also give end of file.*/ /* we need to force the next read to also give end of file.*/
GLOBAL_Stream[inp_stream].status |= Push_Eof_Stream_f; GLOBAL_Stream[inp_stream].status |= Push_Eof_Stream_f;
LOCAL_ErrorMessage = "end of file found before end of term"; LOCAL_ErrorMessage = "end of file found before end of term";
@ -818,14 +833,11 @@ static parser_state_t scanError(REnv *re, FEnv *fe, int inp_stream) {
static parser_state_t parseError(REnv *re, FEnv *fe, int inp_stream) { static parser_state_t parseError(REnv *re, FEnv *fe, int inp_stream) {
CACHE_REGS CACHE_REGS
fe->t = 0; fe->t = 0;
if (LOCAL_Error_TYPE == RESOURCE_ERROR_TRAIL || if (LOCAL_Error_TYPE != SYNTAX_ERROR && LOCAL_Error_TYPE != YAP_NO_ERROR) {
LOCAL_Error_TYPE == RESOURCE_ERROR_AUXILIARY_STACK ||
LOCAL_Error_TYPE == RESOURCE_ERROR_HEAP ||
LOCAL_Error_TYPE == RESOURCE_ERROR_STACK) {
return YAP_SCANNING_ERROR; return YAP_SCANNING_ERROR;
} }
Term ParserErrorStyle = re->sy; Term ParserErrorStyle = re->sy;
if (ParserErrorStyle == TermQuiet) { if (ParserErrorStyle == TermQuiet || LOCAL_Error_TYPE == YAP_NO_ERROR) {
/* just fail */ /* just fail */
LOCAL_Error_TYPE = YAP_NO_ERROR; LOCAL_Error_TYPE = YAP_NO_ERROR;
return YAP_PARSING_FINISHED; return YAP_PARSING_FINISHED;
@ -948,7 +960,7 @@ static Int read_term(
if (inp_stream == -1) { if (inp_stream == -1) {
return (FALSE); return (FALSE);
} }
out = Yap_read_term(inp_stream, add_output(ARG1, ARG2), false); out = Yap_read_term(inp_stream, add_output(ARG2, ARG3), false);
UNLOCK(GLOBAL_Stream[inp_stream].streamlock); UNLOCK(GLOBAL_Stream[inp_stream].streamlock);
return out != 0L; return out != 0L;
} }
@ -1404,16 +1416,73 @@ static Int read_term_from_string(USES_REGS1) {
return Yap_unify(rc, ARG2); return Yap_unify(rc, ARG2);
} }
static Int atomic_to_term(USES_REGS1) {
Term t1 = Deref(ARG1);
size_t len;
if (IsVarTerm(t1)) {
Yap_Error(INSTANTIATION_ERROR, t1, "read_term_from_string/3");
return (FALSE);
} else if (!IsAtomicTerm(t1)) {
Yap_Error(TYPE_ERROR_ATOMIC, t1, "read_term_from_atomic/3");
return (FALSE);
} else {
Term t = Yap_AtomicToString(t1 PASS_REGS);
const unsigned char *us = UStringOfTerm(t);
len = strlen_utf8(us);
return Yap_BufferToTerm(us, len,
add_output(ARG2, add_names(ARG3, TermNil)));
}
}
static Int atom_to_term(USES_REGS1) {
Term t1 = Deref(ARG1);
size_t len;
if (IsVarTerm(t1)) {
Yap_Error(INSTANTIATION_ERROR, t1, "read_term_from_string/3");
return (FALSE);
} else if (!IsAtomTerm(t1)) {
Yap_Error(TYPE_ERROR_ATOM, t1, "read_term_from_atomic/3");
return (FALSE);
} else {
Term t = Yap_AtomicToString(t1 PASS_REGS);
const unsigned char *us = UStringOfTerm(t);
len = strlen_utf8(us);
return Yap_BufferToTerm(us, len,
add_output(ARG2, add_names(ARG3, TermNil)));
}
}
static Int string_to_term(USES_REGS1) {
Term t1 = Deref(ARG1);
size_t len;
if (IsVarTerm(t1)) {
Yap_Error(INSTANTIATION_ERROR, t1, "read_term_from_string/3");
return (FALSE);
} else if (!IsStringTerm(t1)) {
Yap_Error(TYPE_ERROR_STRING, t1, "read_term_from_string/3");
return (FALSE);
} else {
const unsigned char *us = UStringOfTerm(t1);
len = strlen_utf8(us);
return Yap_BufferToTerm(us, len,
add_output(ARG2, add_names(ARG3, TermNil)));
}
}
void Yap_InitReadTPreds(void) { void Yap_InitReadTPreds(void) {
Yap_InitCPred("read", 1, read1, SyncPredFlag);
Yap_InitCPred("read", 2, read2, SyncPredFlag);
Yap_InitCPred("read_term", 2, read_term2, SyncPredFlag); Yap_InitCPred("read_term", 2, read_term2, SyncPredFlag);
Yap_InitCPred("read_term", 3, read_term, SyncPredFlag); Yap_InitCPred("read_term", 3, read_term, SyncPredFlag);
Yap_InitCPred("read", 1, read1, SyncPredFlag);
Yap_InitCPred("read", 2, read2, SyncPredFlag);
Yap_InitCPred("read_clause", 2, read_clause2, SyncPredFlag); Yap_InitCPred("read_clause", 2, read_clause2, SyncPredFlag);
Yap_InitCPred("read_clause", 3, read_clause, 0); Yap_InitCPred("read_clause", 3, read_clause, 0);
Yap_InitCPred("read_term_from_atom", 3, read_term_from_atom, 0); Yap_InitCPred("read_term_from_atom", 3, read_term_from_atom, 0);
Yap_InitCPred("read_term_from_atomic", 3, read_term_from_atomic, 0); Yap_InitCPred("read_term_from_atomic", 3, read_term_from_atomic, 0);
Yap_InitCPred("read_term_from_string", 3, read_term_from_string, 0); Yap_InitCPred("read_term_from_string", 3, read_term_from_string, 0);
Yap_InitCPred("atom_to_term", 3, atom_to_term, 0);
Yap_InitCPred("atomic_to_term", 3, atomic_to_term, 0);
Yap_InitCPred("string_to_term", 3, string_to_term, 0);
Yap_InitCPred("fileerrors", 0, fileerrors, SyncPredFlag); Yap_InitCPred("fileerrors", 0, fileerrors, SyncPredFlag);
Yap_InitCPred("nofileeleerrors", 0, nofileerrors, SyncPredFlag); Yap_InitCPred("nofileeleerrors", 0, nofileerrors, SyncPredFlag);