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yap-6.3
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improve error handling; be careful with trail.

This commit is contained in:
Vítor Santos Costa 2016-03-30 01:27:03 +01:00
parent 6b141078b4
commit a304fc721a
1 changed files with 7 additions and 1 deletions
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8
os/readterm.c
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@ -406,6 +406,8 @@ static xarg *setReadEnv(Term opts, FEnv *fe, struct renv *re, int inp_stream) {
fe->enc = GLOBAL_Stream[inp_stream].encoding;
xarg *args = Yap_ArgListToVector(opts, read_defs, READ_END);
if (args == NULL) {
if (LOCAL_Error_TYPE == DOMAIN_ERROR_GENERIC_ARGUMENT)
LOCAL_Error_TYPE = DOMAIN_ERROR_READ_OPTION;
return NULL;
}
@ -869,7 +871,6 @@ static parser_state_t parseError(REnv *re, FEnv *fe, int inp_stream) {
if (ParserErrorStyle == TermError) {
LOCAL_ErrorMessage = NULL;
LOCAL_Error_TYPE = SYNTAX_ERROR;
Yap_Error(SYNTAX_ERROR, terr, LOCAL_ErrorMessage);
return YAP_PARSING_FINISHED;
// dec-10
} else if (Yap_PrintWarning(terr)) {
@ -953,6 +954,9 @@ Term Yap_read_term(int inp_stream, Term opts, int nargs) {
fe.t = 0;
break;
}
if (LOCAL_Error_TYPE != YAP_NO_ERROR) {
Yap_Error(LOCAL_Error_TYPE, ARG1, LOCAL_ErrorMessage);
}
#if EMACS
first_char = tokstart->TokPos;
#endif /* EMACS */
@ -1020,6 +1024,8 @@ static xarg *setClauseReadEnv(Term opts, FEnv *fe, struct renv *re,
xarg *args = Yap_ArgListToVector(opts, read_clause_defs, READ_END);
if (args == NULL) {
if (LOCAL_Error_TYPE == DOMAIN_ERROR_GENERIC_ARGUMENT)
LOCAL_Error_TYPE = DOMAIN_ERROR_READ_OPTION;
return NULL;
}
if (args[READ_CLAUSE_MODULE].used) {