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fix read_term options

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This commit is contained in:
Vítor Santos Costa 2016-01-20 22:38:09 +00:00
parent 8c69e3811e
commit 10a29998a3
1 changed files with 25 additions and 8 deletions
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33
os/readterm.c
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@ -180,7 +180,8 @@ static int parse_quasi_quotations(ReadData _PL_rd ARG_LD) {
#endif /*O_QUASIQUOTATIONS*/
#define READ_DEFS() \
PAR("comments", filler, READ_COMMENTS), PAR("module", isatom, READ_MODULE), \
PAR("comments", filler, READ_COMMENTS), \
PAR("module", isatom, READ_MODULE), \
PAR("priority", nat, READ_PRIORITY), \
PAR("quasi_quotations", filler, READ_QUASI_QUOTATIONS), \
PAR("term_position", filler, READ_TERM_POSITION), \
@ -372,10 +373,12 @@ typedef struct FEnv {
bool reading_clause; /// read_clause
size_t nargs; /// arity of current procedure
encoding_t enc; /// encoding of the stream being read
Term tcomms; /// Access to comments
Term cmod; /// Access to comments
} FEnv;
typedef struct renv {
Term cm, bq;
Term bq;
bool ce, sw;
Term sy;
UInt cpos;
@ -394,7 +397,7 @@ static xarg *setReadEnv(Term opts, FEnv *fe, struct renv *re, int inp_stream) {
CACHE_REGS
LOCAL_VarTable = NULL;
LOCAL_AnonVarTable = NULL;
re->cm = CurrentModule;
fe->cmod = CurrentModule;
fe->enc = GLOBAL_Stream[inp_stream].encoding;
xarg *args = Yap_ArgListToVector(opts, read_defs, READ_END);
if (args == NULL) {
@ -414,6 +417,11 @@ static xarg *setReadEnv(Term opts, FEnv *fe, struct renv *re, int inp_stream) {
} else {
fe->qq = 0;
}
if (args[READ_COMMENTS].used) {
fe->tcomms = args[READ_COMMENTS].tvalue;
} else {
fe->tcomms = 0;
}
if (args[READ_TERM_POSITION].used) {
fe->tp = args[READ_TERM_POSITION].tvalue;
} else {
@ -517,6 +525,8 @@ static bool complete_clause_processing(FEnv *fe, TokEntry *tokstarts, Term t);
static bool complete_processing(FEnv *fe, TokEntry *tokstart) {
CACHE_REGS
Term v1, v2, v3;
CurrentModule = fe->cmod;
if (fe->vp) {
while (TRUE) {
fe->old_H = HR;
@ -561,6 +571,7 @@ static bool complete_processing(FEnv *fe, TokEntry *tokstart) {
if ((!fe->vp || Yap_unify(v1, fe->vp)) &&
(!fe->np || Yap_unify(v2, fe->np)) &&
(!fe->sp || Yap_unify(v3, fe->sp)) &&
(!fe->tcomms || Yap_unify(LOCAL_Comments, fe->tcomms)) &&
(!fe->tp || Yap_unify(fe->tp, CurrentPositionToTerm())))
return fe->t;
return 0;
@ -808,10 +819,10 @@ Term Yap_read_term(int inp_stream, Term opts, int nargs) {
state = parseError(&re, &fe, inp_stream);
break;
case YAP_PARSING_FINISHED:
return fe.t;
break;
}
}
if (fe.t) {
{
CACHE_REGS
if (fe.reading_clause &&
!complete_clause_processing(&fe, LOCAL_tokptr, fe.t))
@ -880,12 +891,11 @@ static const param_t read_clause_defs[] = {READ_CLAUSE_DEFS()};
static xarg *setClauseReadEnv(Term opts, FEnv *fe, struct renv *re,
int inp_stream) {
CACHE_REGS
re->cm = CurrentModule;
xarg *args = Yap_ArgListToVector(opts, read_clause_defs, READ_END);
if (args == NULL) {
return NULL;
}
re->cm = CurrentModule;
re->bq = getBackQuotesFlag();
CurrentModule = LOCAL_SourceModule;
fe->qq = 0;
@ -899,7 +909,11 @@ static xarg *setClauseReadEnv(Term opts, FEnv *fe, struct renv *re,
} else {
fe->sp = 0;
}
if (args[READ_CLAUSE_SYNTAX_ERRORS].used) {
if (args[READ_CLAUSE_COMMENTS].used) {
fe->tcomms = args[READ_CLAUSE_COMMENTS].tvalue;
} else {
fe->tcomms = 0;
} if (args[READ_CLAUSE_SYNTAX_ERRORS].used) {
re->sy = args[READ_CLAUSE_SYNTAX_ERRORS].tvalue;
} else {
re->sy = TermDec10;
@ -926,6 +940,7 @@ static xarg *setClauseReadEnv(Term opts, FEnv *fe, struct renv *re,
static bool complete_clause_processing(FEnv *fe, TokEntry *tokstart, Term t) {
CACHE_REGS
Term v1, v2, v3 = TermNil;
CurrentModule = fe->cmod;
{
fe->old_H = HR;
while (TRUE) {
@ -971,6 +986,8 @@ static bool complete_clause_processing(FEnv *fe, TokEntry *tokstart, Term t) {
}
Yap_clean_tokenizer(tokstart, LOCAL_VarTable, LOCAL_AnonVarTable);
if (fe->tcomms && Yap_unify(LOCAL_Comments, fe->tcomms))
return false;
if (v3 != TermNil) {
Term singls[4];
singls[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomSingleton, 1), 1, &v3);