#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
#ifndef YY_
-# if YYENABLE_NLS
+# if defined YYENABLE_NLS && YYENABLE_NLS
# if ENABLE_NLS
# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
# define YY_(msgid) dgettext ("bison-runtime", msgid)
while (YYID (0))
#endif
-
+]b4_locations_if([[
/* YY_LOCATION_PRINT -- Print the location on the stream.
This macro was not mandated originally: define only if we know
we won't break user code: when these are the locations we know. */
#ifndef YY_LOCATION_PRINT
-# if YYLTYPE_IS_TRIVIAL
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
# define YY_LOCATION_PRINT(File, Loc) \
fprintf (File, "%d.%d-%d.%d", \
(Loc).first_line, (Loc).first_column, \
# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
# endif
#endif
+]], [[
+/* This macro is provided for backward compatibility. */
+#ifndef YY_LOCATION_PRINT
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+#endif
+]])[
/* YYLEX -- calling `yylex' with the right arguments. */
}
# endif
-/* Copy into YYRESULT an error message about the unexpected token
- YYTOKEN while in state YYSTATE. Return the number of bytes copied,
- including the terminating null byte. If YYRESULT is null, do not
- copy anything; just return the number of bytes that would be
- copied. As a special case, return 0 if an ordinary "syntax error"
- message will do. Return YYSIZE_MAXIMUM if overflow occurs during
- size calculation. */
-static YYSIZE_T
-yysyntax_error (char *yyresult, int yystate, int yytoken)
+/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
+ about the unexpected token YYTOKEN while in state YYSTATE.
+
+ Return 0 if *YYMSG was successfully written. Return 1 if an ordinary
+ "syntax error" message will suffice instead. Return 2 if *YYMSG is
+ not large enough to hold the message. In the last case, also set
+ *YYMSG_ALLOC to either (a) the required number of bytes or (b) zero
+ if the required number of bytes is too large to store. */
+static int
+yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
+ int yystate, int yytoken)
{
int yyn = yypact[yystate];
if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
- return 0;
+ return 1;
else
{
YYSIZE_T yysize0 = yytnamerr (0, yytname[yytoken]);
YYSIZE_T yysize = yysize0;
YYSIZE_T yysize1;
- int yysize_overflow = 0;
enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
/* Internationalized format string. */
const char *yyformat = 0;
}
yyarg[yycount++] = yytname[yyx];
yysize1 = yysize + yytnamerr (0, yytname[yyx]);
- yysize_overflow |= (yysize1 < yysize);
+ if (! (yysize <= yysize1
+ && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+ {
+ /* Overflow. */
+ *yymsg_alloc = 0;
+ return 2;
+ }
yysize = yysize1;
}
- switch (yycount)
+ switch (yycount)
{
#define YYCASE_(N, S) \
case N: \
}
yysize1 = yysize + yystrlen (yyformat);
- yysize_overflow |= (yysize1 < yysize);
+ if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+ {
+ /* Overflow. */
+ *yymsg_alloc = 0;
+ return 2;
+ }
yysize = yysize1;
- if (yysize_overflow)
- return YYSIZE_MAXIMUM;
+ if (*yymsg_alloc < yysize)
+ {
+ *yymsg_alloc = 2 * yysize;
+ if (! (yysize <= *yymsg_alloc
+ && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
+ *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
+ return 2;
+ }
- if (yyresult)
- {
- /* Avoid sprintf, as that infringes on the user's name space.
- Don't have undefined behavior even if the translation
- produced a string with the wrong number of "%s"s. */
- char *yyp = yyresult;
- int yyi = 0;
- while ((*yyp = *yyformat) != '\0')
- if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
- {
- yyp += yytnamerr (yyp, yyarg[yyi++]);
- yyformat += 2;
- }
- else
- {
- yyp++;
- yyformat++;
- }
- }
- return yysize;
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ {
+ char *yyp = *yymsg;
+ int yyi = 0;
+ while ((*yyp = *yyformat) != '\0')
+ if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyformat += 2;
+ }
+ else
+ {
+ yyp++;
+ yyformat++;
+ }
+ }
+ return 0;
}
}
#endif /* YYERROR_VERBOSE */
yyvsp = yyvs;]b4_locations_if([[
yylsp = yyls;
-#if YYLTYPE_IS_TRIVIAL
+#if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
/* Initialize the default location before parsing starts. */
yylloc.first_line = yylloc.last_line = ]b4_location_initial_line[;
yylloc.first_column = yylloc.last_column = ]b4_location_initial_column[;
#if ! YYERROR_VERBOSE
yyerror (]b4_yyerror_args[YY_("syntax error"));
#else
- {
- YYSIZE_T yysize = yysyntax_error (0, yystate, yytoken);
- if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
- {
- YYSIZE_T yyalloc = 2 * yysize;
- if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
- yyalloc = YYSTACK_ALLOC_MAXIMUM;
- if (yymsg != yymsgbuf)
- YYSTACK_FREE (yymsg);
- yymsg = (char *) YYSTACK_ALLOC (yyalloc);
- if (yymsg)
- yymsg_alloc = yyalloc;
- else
- {
- yymsg = yymsgbuf;
- yymsg_alloc = sizeof yymsgbuf;
- }
- }
-
- if (0 < yysize && yysize <= yymsg_alloc)
- {
- (void) yysyntax_error (yymsg, yystate, yytoken);
- yyerror (]b4_yyerror_args[yymsg);
- }
- else
- {
- yyerror (]b4_yyerror_args[YY_("syntax error"));
- if (yysize != 0)
- goto yyexhaustedlab;
- }
- }
+ while (1)
+ {
+ int yysyntax_error_status =
+ yysyntax_error (&yymsg_alloc, &yymsg, yystate, yytoken);
+ if (yysyntax_error_status == 2 && 0 < yymsg_alloc)
+ {
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
+ if (yymsg)
+ continue;
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ if (yysyntax_error_status == 0)
+ yyerror (]b4_yyerror_args[yymsg);
+ else
+ yyerror (]b4_yyerror_args[YY_("syntax error"));
+ if (yysyntax_error_status == 2)
+ goto yyexhaustedlab;
+ break;
+ }
#endif
}
projects / bison.git / blobdiff