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(yyerrlab1): Move this label down, so that the

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parser does not discard the lookahead token if the user code
invokes YYERROR.  This change is required for POSIX conformance.
This commit is contained in:
Paul Eggert
2002-11-25 06:42:10 +00:00
parent f6cf0f6e5f
commit 300a796626
1 changed files with 6 additions and 8 deletions
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14
data/yacc.c
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@@ -912,8 +912,6 @@ yybackup:
} }
else else
{ {
/* We have to keep this `#if YYDEBUG', since we use variables
which are defined only if `YYDEBUG' is set. */
YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc); YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc);
} }
@@ -1073,13 +1071,7 @@ yyerrlab:
#endif /* YYERROR_VERBOSE */ #endif /* YYERROR_VERBOSE */
yyerror (]b4_yyerror_args["syntax error"); yyerror (]b4_yyerror_args["syntax error");
} }
goto yyerrlab1;
/*----------------------------------------------------.
| yyerrlab1 -- error raised explicitly by an action. |
`----------------------------------------------------*/
yyerrlab1:
if (yyerrstatus == 3) if (yyerrstatus == 3)
{ {
/* If just tried and failed to reuse lookahead token after an /* If just tried and failed to reuse lookahead token after an
@@ -1107,7 +1099,13 @@ yyerrlab1:
/* Else will try to reuse lookahead token after shifting the error /* Else will try to reuse lookahead token after shifting the error
token. */ token. */
goto yyerrlab1;
/*----------------------------------------------------.
| yyerrlab1 -- error raised explicitly by an action. |
`----------------------------------------------------*/
yyerrlab1:
yyerrstatus = 3; /* Each real token shifted decrements this. */ yyerrstatus = 3; /* Each real token shifted decrements this. */
for (;;) for (;;)