m4_divert(-1) -*- C -*-
# Yacc compatible skeleton for Bison
-# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003
+# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004
# Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
[m4_if(b4_ints_in($@, [0], [255]), [1], [unsigned char],
b4_ints_in($@, [-128], [127]), [1], [yysigned_char],
- b4_ints_in($@, [0], [65535]), [1], [unsigned short],
- b4_ints_in($@, [-32768], [32767]), [1], [short],
+ b4_ints_in($@, [0], [65535]), [1], [unsigned short int],
+ b4_ints_in($@, [-32768], [32767]), [1], [short int],
m4_eval([0 <= $1]), [1], [unsigned int],
m4_divert(0)dnl
@output @output_parser_name@
b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
- [1984, 1989, 1990, 2000, 2001, 2002, 2003])[
+ [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004])[
/* As a special exception, when this file is copied by Bison into a
Bison output file, you may use that output file without restriction.
/* A type that is properly aligned for any stack member. */
union yyalloc
{
- short yyss;
+ short int yyss;
YYSTYPE yyvs;
]b4_location_if([ YYLTYPE yyls;
])dnl
N elements. */
]b4_location_if(
[# define YYSTACK_BYTES(N) \
- ((N) * (sizeof (short) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ ((N) * (sizeof (short int) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ 2 * YYSTACK_GAP_MAXIMUM)],
[# define YYSTACK_BYTES(N) \
- ((N) * (sizeof (short) + sizeof (YYSTYPE)) \
+ ((N) * (sizeof (short int) + sizeof (YYSTYPE)) \
+ YYSTACK_GAP_MAXIMUM)])[
/* Copy COUNT objects from FROM to TO. The source and destination do
#if defined (__STDC__) || defined (__cplusplus)
typedef signed char yysigned_char;
#else
- typedef short yysigned_char;
+ typedef short int yysigned_char;
#endif
/* YYFINAL -- State number of the termination state. */
} \
while (0)
+
#define YYTERROR 1
#define YYERRCODE 256
-/* YYLLOC_DEFAULT -- Compute the default location (before the actions
- are run). */
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N]. */
#ifndef YYLLOC_DEFAULT
# define YYLLOC_DEFAULT(Current, Rhs, N) \
(Current).last_column = (Rhs)[N].last_column)
#endif
+
+/* 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
+# define YY_LOCATION_PRINT(File, Loc) \
+ fprintf (File, "%d.%d-%d.%d", \
+ (Loc).first_line, (Loc).first_column, \
+ (Loc).last_line, (Loc).last_column)
+# endif
+#else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+#endif
+
+
/* YYLEX -- calling `yylex' with the right arguments. */
#ifdef YYLEX_PARAM
YYFPRINTF Args; \
} while (0)
-# define YYDSYMPRINT(Args) \
-do { \
- if (yydebug) \
- yysymprint Args; \
-} while (0)
-
-# define YYDSYMPRINTF(Title, Token, Value, Location) \
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
do { \
if (yydebug) \
{ \
YYFPRINTF (stderr, "%s ", Title); \
yysymprint (stderr, \
- Token, Value]b4_location_if([, Location])[); \
+ Type, Value]b4_location_if([, Location])[); \
YYFPRINTF (stderr, "\n"); \
} \
} while (0)
/*------------------------------------------------------------------.
| yy_stack_print -- Print the state stack from its BOTTOM up to its |
-| TOP (cinluded). |
+| TOP (included). |
`------------------------------------------------------------------*/
]b4_c_function_def([yy_stack_print], [static void],
- [[short *bottom], [bottom]],
- [[short *top], [top]])[
+ [[short int *bottom], [bottom]],
+ [[short int *top], [top]])[
{
YYFPRINTF (stderr, "Stack now");
for (/* Nothing. */; bottom <= top; ++bottom)
int yydebug;
#else /* !YYDEBUG */
# define YYDPRINTF(Args)
-# define YYDSYMPRINT(Args)
-# define YYDSYMPRINTF(Title, Token, Value, Location)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
# define YY_STACK_PRINT(Bottom, Top)
# define YY_REDUCE_PRINT(Rule)
#endif /* !YYDEBUG */
# Declare the variables that are global, or local to YYPARSE if
# pure-parser.
m4_define([b4_declare_parser_variables],
-[/* The lookahead symbol. */
+[/* The look-ahead symbol. */
int yychar;
-/* The semantic value of the lookahead symbol. */
+/* The semantic value of the look-ahead symbol. */
YYSTYPE yylval;
/* Number of syntax errors so far. */
int yynerrs;b4_location_if([
-/* Location data for the lookahead symbol. */
+/* Location data for the look-ahead symbol. */
YYLTYPE yylloc;])
])
m4_divert_pop([KILL])dnl# ====================== End of M4 code.
int yyresult;
/* Number of tokens to shift before error messages enabled. */
int yyerrstatus;
- /* Lookahead token as an internal (translated) token number. */
+ /* Look-ahead token as an internal (translated) token number. */
int yytoken = 0;
/* Three stacks and their tools:
to reallocate them elsewhere. */
/* The state stack. */
- short yyssa[YYINITDEPTH];
- short *yyss = yyssa;
- register short *yyssp;
+ short int yyssa[YYINITDEPTH];
+ short int *yyss = yyssa;
+ register short int *yyssp;
/* The semantic value stack. */
YYSTYPE yyvsa[YYINITDEPTH];
YYLTYPE yylsa[YYINITDEPTH];
YYLTYPE *yyls = yylsa;
YYLTYPE *yylsp;
- YYLTYPE *yylerrsp;]])[
+ /* The locations where the error started and ended. */
+ YYLTYPE yyerror_range[2];]])[
#define YYPOPSTACK (yyvsp--, yyssp--]b4_location_if([, yylsp--])[)
yyssp = yyss;
yyvsp = yyvs;
-]b4_location_if([ yylsp = yyls;])[
- goto yysetstate;
+]b4_location_if([[ yylsp = yyls;
+#if YYLTYPE_IS_TRIVIAL
+ /* Initialize the default location before parsing starts. */
+ yyls[0].first_line = yyls[0].last_line = 1;
+ yyls[0].first_column = yyls[0].last_column = 0;
+#endif
+]])
+m4_ifdef([b4_initial_action], [
+m4_pushdef([b4_at_dollar], [(*yylsp)])dnl
+m4_pushdef([b4_dollar_dollar], [(*yyvsp)])dnl
+ /* User initialization code. */
+ b4_initial_action
+m4_popdef([b4_dollar_dollar])dnl
+m4_popdef([b4_at_dollar])dnl
+/* Line __line__ of yacc.c. */
+b4_syncline([@oline@], [@ofile@])])dnl
+
+[ goto yysetstate;
/*------------------------------------------------------------.
| yynewstate -- Push a new state, which is found in yystate. |
these so that the &'s don't force the real ones into
memory. */
YYSTYPE *yyvs1 = yyvs;
- short *yyss1 = yyss;
+ short int *yyss1 = yyss;
]b4_location_if([ YYLTYPE *yyls1 = yyls;])[
/* Each stack pointer address is followed by the size of the
yystacksize = YYMAXDEPTH;
{
- short *yyss1 = yyss;
+ short int *yyss1 = yyss;
union yyalloc *yyptr =
(union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
if (! yyptr)
yybackup:
/* Do appropriate processing given the current state. */
-/* Read a lookahead token if we need one and don't already have one. */
+/* Read a look-ahead token if we need one and don't already have one. */
/* yyresume: */
- /* First try to decide what to do without reference to lookahead token. */
+ /* First try to decide what to do without reference to look-ahead token. */
yyn = yypact[yystate];
if (yyn == YYPACT_NINF)
goto yydefault;
- /* Not known => get a lookahead token if don't already have one. */
+ /* Not known => get a look-ahead token if don't already have one. */
- /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
if (yychar == YYEMPTY)
{
YYDPRINTF ((stderr, "Reading a token: "));
else
{
yytoken = YYTRANSLATE (yychar);
- YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
}
/* If the proper action on seeing token YYTOKEN is to reduce or to
if (yyn == YYFINAL)
YYACCEPT;
- /* Shift the lookahead token. */
- YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken]));
+ /* Shift the look-ahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
/* Discard the token being shifted unless it is eof. */
if (yychar != YYEOF)
yyval = yyvsp[1-yylen];
]b4_location_if(
-[ /* Default location. */
- YYLLOC_DEFAULT (yyloc, yylsp - yylen, yylen);])[
+[[ /* Default location. */
+ if (yylen)
+ YYLLOC_DEFAULT (yyloc, yylsp - yylen, yylen);
+ else
+ yyloc = yylsp[0];]])[
YY_REDUCE_PRINT (yyn);
switch (yyn)
]{
yyerror (]b4_yyerror_args["syntax error");
}
-]b4_location_if([ yylerrsp = yylsp;])[
+]b4_location_if([[ yyerror_range[0] = yylloc;]])[
if (yyerrstatus == 3)
{
- /* If just tried and failed to reuse lookahead token after an
+ /* If just tried and failed to reuse look-ahead token after an
error, discard it. */
if (yychar <= YYEOF)
if (yychar == YYEOF)
for (;;)
{
+]b4_location_if([[ yyerror_range[0] = *yylsp;]])[
YYPOPSTACK;
if (yyssp == yyss)
YYABORT;
- YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
- yydestruct (yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[);
+ yydestruct ("Error: popping",
+ yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[);
}
}
else
{
- YYDSYMPRINTF ("Error: discarding", yytoken, &yylval, &yylloc);
- yydestruct (yytoken, &yylval]b4_location_if([, &yylloc])[);
+ yydestruct ("Error: discarding", yytoken, &yylval]b4_location_if([, &yylloc])[);
yychar = YYEMPTY;
-]b4_location_if([ *++yylerrsp = yylloc;])[
}
}
- /* Else will try to reuse lookahead token after shifting the error
+ /* Else will try to reuse look-ahead token after shifting the error
token. */
goto yyerrlab1;
goto yyerrorlab;
#endif
- yyvsp -= yylen;
+]b4_location_if([[ yyerror_range[0] = yylsp[1-yylen];
+ yylsp -= yylen;
+ ]])[yyvsp -= yylen;
yyssp -= yylen;
yystate = *yyssp;
- ]b4_location_if([yylerrsp = yylsp;
- *++yylerrsp = yyloc;
- yylsp -= yylen;
- ])[goto yyerrlab1;
+ goto yyerrlab1;
/*-------------------------------------------------------------.
if (yyssp == yyss)
YYABORT;
- YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
- yydestruct (yystos[yystate], yyvsp]b4_location_if([, yylsp])[);
+]b4_location_if([[ yyerror_range[0] = *yylsp;]])[
+ yydestruct ("Error: popping", yystos[yystate], yyvsp]b4_location_if([, yylsp])[);
YYPOPSTACK;
yystate = *yyssp;
YY_STACK_PRINT (yyss, yyssp);
if (yyn == YYFINAL)
YYACCEPT;
- YYDPRINTF ((stderr, "Shifting error token, "));
-
*++yyvsp = yylval;
-]b4_location_if([ YYLLOC_DEFAULT (yyloc, yylsp, yylerrsp - yylsp);
- *++yylsp = yyloc;])[
+]b4_location_if([[
+ yyerror_range[1] = yylloc;
+ /* Using YYLLOC is tempting, but would change the location of
+ the look-ahead. YYLOC is available though. */
+ YYLLOC_DEFAULT (yyloc, yyerror_range - 1, 2);
+ *++yylsp = yyloc;]])[
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
yystate = yyn;
goto yynewstate;
| yyabortlab -- YYABORT comes here. |
`-----------------------------------*/
yyabortlab:
+ yydestruct ("Error: discarding lookahead",
+ yytoken, &yylval]b4_location_if([, &yylloc])[);
+ yychar = YYEMPTY;
yyresult = 1;
goto yyreturn;
m4_if(b4_defines_flag, 0, [],
[@output @output_header_name@
b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
- [1984, 1989, 1990, 2000, 2001, 2002, 2003])
+ [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004])
/* As a special exception, when this file is copied by Bison into a
Bison output file, you may use that output file without restriction.
projects / bison.git / blobdiff