2 # Yacc compatible skeleton for Bison
4 # Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
5 # 2007, 2008, 2009 Free Software Foundation, Inc.
7 m4_pushdef([b4_copyright_years
],
8 [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
11 # This program is free software: you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation, either version 3 of the License, or
14 # (at your option) any later version.
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program. If not, see <http://www.gnu.org/licenses/>.
24 # Check the value of %define api.push-pull.
25 b4_percent_define_default([[api
.push
-pull
]], [[pull]])
26 b4_percent_define_check_values([[[[api
.push
-pull
]],
27 [[pull]], [[push]], [[both]]]])
28 b4_define_flag_if([pull
]) m4_define([b4_pull_flag
], [[1]])
29 b4_define_flag_if([push
]) m4_define([b4_push_flag
], [[1]])
30 m4_case(b4_percent_define_get([[api
.push
-pull
]]),
31 [pull
], [m4_define([b4_push_flag
], [[0]])],
32 [push
], [m4_define([b4_pull_flag
], [[0]])])
34 # Handle BISON_USE_PUSH_FOR_PULL for the test suite. So that push parsing
35 # tests function as written, don't let BISON_USE_PUSH_FOR_PULL modify Bison's
36 # behavior at all when push parsing is already requested.
37 b4_define_flag_if([use_push_for_pull
])
38 b4_use_push_for_pull_if([
39 b4_push_if([m4_define([b4_use_push_for_pull_flag
], [[0]])],
40 [m4_define([b4_push_flag
], [[1]])])])
42 m4_include(b4_pkgdatadir
/[c
.m4
])
44 ## ---------------- ##
46 ## ---------------- ##
49 m4_define_default([b4_stack_depth_max
], [10000])
50 m4_define_default([b4_stack_depth_init
], [200])
53 ## ------------------------ ##
54 ## Pure/impure interfaces. ##
55 ## ------------------------ ##
57 b4_percent_define_default([[api
.pure
]], [[false]])
58 b4_define_flag_if([pure
])
59 m4_define([b4_pure_flag
],
60 [b4_percent_define_flag_if([[api
.pure
]], [[1]], [[0]])])
62 # b4_yacc_pure_if(IF-TRUE, IF-FALSE)
63 # ----------------------------------
64 # Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise.
65 m4_define([b4_yacc_pure_if
],
66 [b4_pure_if([m4_ifset([b4_parse_param
],
73 # Arguments passed to yyerror: user args plus yylloc.
74 m4_define([b4_yyerror_args
],
75 [b4_yacc_pure_if([b4_locations_if([&yylloc
, ])])dnl
76 m4_ifset([b4_parse_param
], [b4_c_args(b4_parse_param
), ])])
81 # Accumulate in b4_lex_param all the yylex arguments.
82 # b4_lex_param arrives quoted twice, but we want to keep only one level.
83 m4_define([b4_lex_param
],
84 m4_dquote(b4_pure_if([[[[YYSTYPE
*]], [[&yylval
]]][]dnl
85 b4_locations_if([, [[YYLTYPE
*], [&yylloc
]]])m4_ifdef([b4_lex_param
], [, ])])dnl
86 m4_ifdef([b4_lex_param
], b4_lex_param
)))
93 # b4_int_type(MIN, MAX)
94 # ---------------------
95 # Return the smallest int type able to handle numbers ranging from
96 # MIN to MAX (included). Overwrite the version from c.m4, which
97 # uses only C89 types, so that the user can override the shorter
98 # types, and so that pre-C89 compilers are handled correctly.
99 m4_define([b4_int_type
],
100 [m4_if(b4_ints_in($@
, [0], [255]), [1], [yytype_uint8
],
101 b4_ints_in($@
, [-128], [127]), [1], [yytype_int8
],
103 b4_ints_in($@
, [0], [65535]), [1], [yytype_uint16
],
104 b4_ints_in($@
, [-32768], [32767]), [1], [yytype_int16
],
106 m4_eval([0 <= $
1]), [1], [unsigned int],
111 ## ----------------- ##
112 ## Semantic Values. ##
113 ## ----------------- ##
116 # b4_lhs_value([TYPE])
117 # --------------------
118 # Expansion of $<TYPE>$.
119 m4_define([b4_lhs_value
],
120 [b4_symbol_value(yyval
, [$
1])])
123 # b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
124 # --------------------------------------
125 # Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
127 m4_define([b4_rhs_value
],
128 [b4_symbol_value([yyvsp@
{b4_subtract([$
2], [$
1])@
}], [$
3])])
139 m4_define([b4_lhs_location
],
143 # b4_rhs_location(RULE-LENGTH, NUM)
144 # ---------------------------------
145 # Expansion of @NUM, where the current rule has RULE-LENGTH symbols
147 m4_define([b4_rhs_location
],
148 [(yylsp@
{b4_subtract([$
2], [$
1])@
})])
151 ## ------------------ ##
152 ## Parser variables. ##
153 ## ------------------ ##
155 # b4_declare_scanner_communication_variables
156 # ------------------------------------------
157 # Declare the variables that are global, or local to YYPARSE if
159 m4_define([b4_declare_scanner_communication_variables
], [[
160 /* The lookahead symbol. */
163 /* The semantic value of the lookahead symbol. */
164 YYSTYPE yylval
;]b4_locations_if([[
166 /* Location data for the lookahead symbol. */
167 YYLTYPE yylloc
;]])b4_pure_if([], [[
169 /* Number of syntax errors so far. */
173 # b4_declare_parser_state_variables
174 # ---------------------------------
175 # Declare all the variables that are needed to maintain the parser state
176 # between calls to yypush_parse.
177 m4_define([b4_declare_parser_state_variables
], [b4_pure_if([[
178 /* Number of syntax errors so far. */
182 /* Number of tokens to shift before error messages enabled. */
185 /* The stacks and their tools:
186 `yyss': related to states.
187 `yyvs': related to semantic values.]b4_locations_if([[
188 `yyls': related to locations.]])[
190 Refer to the stacks thru separate pointers, to allow yyoverflow
191 to reallocate them elsewhere. */
193 /* The state stack. */
194 yytype_int16 yyssa
[YYINITDEPTH
];
198 /* The semantic value stack. */
199 YYSTYPE yyvsa
[YYINITDEPTH
];
201 YYSTYPE
*yyvsp
;]b4_locations_if([[
203 /* The location stack. */
204 YYLTYPE yylsa
[YYINITDEPTH
];
208 /* The locations where the error started and ended. */
209 YYLTYPE yyerror_range
[2];]])[
211 YYSIZE_T yystacksize
;]])
214 ## --------------------------------------------------------- ##
215 ## Defining symbol actions, e.g., printers and destructors. ##
216 ## --------------------------------------------------------- ##
218 # We do want M4 expansion after # for CPP macros.
221 @
output(b4_parser_file_name@
)@
222 b4_copyright([Implementation
for Bison
's Yacc-like parsers in C])[
224 /* C LALR(1) parser skeleton written by Richard Stallman, by
225 simplifying the original so-called "semantic" parser. */
227 /* All symbols defined below should begin with yy or YY, to avoid
228 infringing on user name space. This should be done even for local
229 variables, as they might otherwise be expanded by user macros.
230 There are some unavoidable exceptions within include files to
231 define necessary library symbols; they are noted "INFRINGES ON
232 USER NAME SPACE" below. */
235 b4_percent_code_get([[top]])[]dnl
236 m4_if(b4_prefix, [yy], [],
237 [[/* Substitute the variable and function names. */]b4_pull_if([[
238 #define yyparse ]b4_prefix[parse]])b4_push_if([[
239 #define yypush_parse ]b4_prefix[push_parse]b4_pull_if([[
240 #define yypull_parse ]b4_prefix[pull_parse]])[
241 #define yypstate_new ]b4_prefix[pstate_new
242 #define yypstate_delete ]b4_prefix[pstate_delete
243 #define yypstate ]b4_prefix[pstate]])[
244 #define yylex ]b4_prefix[lex
245 #define yyerror ]b4_prefix[error
246 #define yylval ]b4_prefix[lval
247 #define yychar ]b4_prefix[char
248 #define yydebug ]b4_prefix[debug
249 #define yynerrs ]b4_prefix[nerrs
250 ]b4_locations_if([[#define yylloc ]b4_prefix[lloc]])])[
252 /* Copy the first part of user declarations. */
253 ]b4_user_pre_prologue[
255 /* Enabling traces. */
257 # define YYDEBUG ]b4_parse_trace_if([1], [0])[
260 /* Enabling verbose error messages. */
261 #ifdef YYERROR_VERBOSE
262 # undef YYERROR_VERBOSE
263 # define YYERROR_VERBOSE 1
265 # define YYERROR_VERBOSE ]b4_error_verbose_if([1], [0])[
268 /* Enabling the token table. */
269 #ifndef YYTOKEN_TABLE
270 # define YYTOKEN_TABLE ]b4_token_table[
273 ]b4_percent_code_get([[requires]])[]dnl
275 b4_token_enums_defines(b4_tokens)[
277 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
278 ]m4_ifdef([b4_stype],
279 [[typedef union ]b4_union_name[
283 # define YYSTYPE_IS_TRIVIAL 1]],
284 [m4_if(b4_tag_seen_flag, 0,
285 [[typedef int YYSTYPE;
286 # define YYSTYPE_IS_TRIVIAL 1]])])[
287 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
288 # define YYSTYPE_IS_DECLARED 1
289 #endif]b4_locations_if([[
291 #if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
292 typedef struct YYLTYPE
299 # define yyltype YYLTYPE /* obsolescent; will be withdrawn */
300 # define YYLTYPE_IS_DECLARED 1
301 # define YYLTYPE_IS_TRIVIAL 1
302 #endif]])b4_push_if([[
305 # define YYPUSH_DECLS
307 typedef struct yypstate yypstate;
308 enum { YYPUSH_MORE = 4 };
310 ]b4_pull_if([b4_c_function_decl([[yyparse]], [[int]], b4_parse_param)
311 ])b4_c_function_decl([[yypush_parse]], [[int]],
312 [[[yypstate *yyps]], [[yyps]]]b4_pure_if([,
313 [[[int yypushed_char]], [[yypushed_char]]],
314 [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
315 [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
317 b4_pull_if([b4_c_function_decl([[yypull_parse]], [[int]],
318 [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
320 b4_c_function_decl([[yypstate_new]], [[yypstate *]], [[[void]], []])
321 b4_c_function_decl([[yypstate_delete]], [[void]],
322 [[[yypstate *yyps]], [[yyps]]])[
325 b4_percent_code_get([[provides]])[]dnl
327 [/* Copy the second part of user declarations. */
328 ]b4_user_post_prologue
329 b4_percent_code_get[]dnl
336 typedef YYTYPE_UINT8 yytype_uint8;
338 typedef unsigned char yytype_uint8;
342 typedef YYTYPE_INT8 yytype_int8;
344 typedef signed char yytype_int8;
346 typedef short int yytype_int8;
350 typedef YYTYPE_UINT16 yytype_uint16;
352 typedef unsigned short int yytype_uint16;
356 typedef YYTYPE_INT16 yytype_int16;
358 typedef short int yytype_int16;
362 # ifdef __SIZE_TYPE__
363 # define YYSIZE_T __SIZE_TYPE__
364 # elif defined size_t
365 # define YYSIZE_T size_t
366 # elif ! defined YYSIZE_T && ]b4_c_modern[
367 # include <stddef.h> /* INFRINGES ON USER NAME SPACE */
368 # define YYSIZE_T size_t
370 # define YYSIZE_T unsigned int
374 #define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
377 # if defined YYENABLE_NLS && YYENABLE_NLS
379 # include <libintl.h> /* INFRINGES ON USER NAME SPACE */
380 # define YY_(msgid) dgettext ("bison-runtime", msgid)
384 # define YY_(msgid) msgid
388 /* Suppress unused-variable warnings by "using" E. */
389 #if ! defined lint || defined __GNUC__
390 # define YYUSE(e) ((void) (e))
392 # define YYUSE(e) /* empty */
395 /* Identity function, used to suppress warnings about constant conditions. */
399 ]b4_c_function_def([YYID], [static int], [[int yyi], [yyi]])[
405 #if ! defined yyoverflow || YYERROR_VERBOSE
408 [[/* The parser invokes alloca or malloc; define the necessary symbols. */
410 # ifdef YYSTACK_USE_ALLOCA
411 # if YYSTACK_USE_ALLOCA
413 # define YYSTACK_ALLOC __builtin_alloca
414 # elif defined __BUILTIN_VA_ARG_INCR
415 # include <alloca.h> /* INFRINGES ON USER NAME SPACE */
417 # define YYSTACK_ALLOC __alloca
418 # elif defined _MSC_VER
419 # include <malloc.h> /* INFRINGES ON USER NAME SPACE */
420 # define alloca _alloca
422 # define YYSTACK_ALLOC alloca
423 # if ! defined _ALLOCA_H && ! defined _STDLIB_H && ]b4_c_modern[
424 # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
434 [# ifdef YYSTACK_ALLOC
435 /* Pacify GCC's `empty
if-body
' warning. */
436 # define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
437 # ifndef YYSTACK_ALLOC_MAXIMUM
438 /* The OS might guarantee only one guard page at the bottom of the stack,
439 and a page size can be as small as 4096 bytes. So we cannot safely
440 invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
441 to allow for a few compiler-allocated temporary stack slots. */
442 # define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
445 # define YYSTACK_ALLOC YYMALLOC
446 # define YYSTACK_FREE YYFREE
447 # ifndef YYSTACK_ALLOC_MAXIMUM
448 # define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
450 # if (defined __cplusplus && ! defined _STDLIB_H \
451 && ! ((defined YYMALLOC || defined malloc) \
452 && (defined YYFREE || defined free)))
453 # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
459 # define YYMALLOC malloc
460 # if ! defined malloc && ! defined _STDLIB_H && ]b4_c_modern[
461 void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
466 # if ! defined free && ! defined _STDLIB_H && ]b4_c_modern[
467 void free (void *); /* INFRINGES ON USER NAME SPACE */
471 #endif /* ! defined yyoverflow || YYERROR_VERBOSE */
474 #if (! defined yyoverflow \
475 && (! defined __cplusplus \
476 || (]b4_locations_if([[defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
477 && ]])[defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
479 /* A type that is properly aligned for any stack member. */
482 yytype_int16 yyss_alloc;
483 YYSTYPE yyvs_alloc;]b4_locations_if([
484 YYLTYPE yyls_alloc;])[
487 /* The size of the maximum gap between one aligned stack and the next. */
488 # define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
490 /* The size of an array large to enough to hold all stacks, each with
493 [# define YYSTACK_BYTES(N) \
494 ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
495 + 2 * YYSTACK_GAP_MAXIMUM)],
496 [# define YYSTACK_BYTES(N) \
497 ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
498 + YYSTACK_GAP_MAXIMUM)])[
500 /* Copy COUNT objects from FROM to TO. The source and destination do
503 # if defined __GNUC__ && 1 < __GNUC__
504 # define YYCOPY(To, From, Count) \
505 __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
507 # define YYCOPY(To, From, Count) \
511 for (yyi = 0; yyi < (Count); yyi++) \
512 (To)[yyi] = (From)[yyi]; \
518 /* Relocate STACK from its old location to the new one. The
519 local variables YYSIZE and YYSTACKSIZE give the old and new number of
520 elements in the stack, and YYPTR gives the new location of the
521 stack. Advance YYPTR to a properly aligned location for the next
523 # define YYSTACK_RELOCATE(Stack_alloc, Stack) \
526 YYSIZE_T yynewbytes; \
527 YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
528 Stack = &yyptr->Stack_alloc; \
529 yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
530 yyptr += yynewbytes / sizeof (*yyptr); \
536 /* YYFINAL -- State number of the termination state. */
537 #define YYFINAL ]b4_final_state_number[
538 /* YYLAST -- Last index in YYTABLE. */
539 #define YYLAST ]b4_last[
541 /* YYNTOKENS -- Number of terminals. */
542 #define YYNTOKENS ]b4_tokens_number[
543 /* YYNNTS -- Number of nonterminals. */
544 #define YYNNTS ]b4_nterms_number[
545 /* YYNRULES -- Number of rules. */
546 #define YYNRULES ]b4_rules_number[
547 /* YYNSTATES -- Number of states. */
548 #define YYNSTATES ]b4_states_number[
550 /* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
551 by yylex, with out-of-bounds checking. */
552 #define YYUNDEFTOK ]b4_undef_token_number[
553 #define YYMAXUTOK ]b4_user_token_number_max[
555 #define YYTRANSLATE(YYX) \
556 ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
558 /* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
559 as returned by yylex, without out-of-bounds checking. */
560 static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
566 ]b4_integral_parser_table_define([rline], [b4_rline],
567 [YYRLINE[YYN] -- Source line where rule number YYN was defined.])[
570 #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
571 /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
572 First, the terminals, then, starting at YYNTOKENS, nonterminals. */
573 static const char *const yytname[] =
580 /* YYTOKNUM[NUM] -- (External) token number corresponding to the
581 (internal) symbol number NUM (which must be that of a token). */
582 static const ]b4_int_type_for([b4_toknum])[ yytoknum[] =
588 #define YYPACT_NINF ]b4_pact_ninf[
590 #define yypact_value_is_default(yystate) \
591 ]b4_table_value_equals([[pact]], [[yystate]], [b4_pact_ninf])[
593 #define YYTABLE_NINF ]b4_table_ninf[
595 #define yytable_value_is_error(yytable_value) \
596 ]b4_table_value_equals([[table]], [[yytable_value]], [b4_table_ninf])[
598 ]b4_parser_tables_define[
600 #define yyerrok (yyerrstatus = 0)
601 #define yyclearin (yychar = YYEMPTY)
605 #define YYACCEPT goto yyacceptlab
606 #define YYABORT goto yyabortlab
607 #define YYERROR goto yyerrorlab
610 /* Like YYERROR except do call yyerror. This remains here temporarily
611 to ease the transition to the new meaning of YYERROR, for GCC.
612 Once GCC version 2 has supplanted version 1, this can go. However,
613 YYFAIL appears to be in use. Nevertheless, it is formally deprecated
614 in Bison 2.4.2's NEWS entry
, where a plan to phase it out is
617 #define YYFAIL goto yyerrlab
619 /* This is here to suppress warnings from the GCC cpp's
620 -Wunused-macros. Normally we don't worry about that warning, but
621 some users do, and we want to make it easy for users to remove
622 YYFAIL uses, which will produce warnings from Bison 2.5. */
625 #define YYRECOVERING() (!!yyerrstatus)
627 #define YYBACKUP(Token, Value) \
629 if (yychar == YYEMPTY && yylen == 1) \
633 yytoken = YYTRANSLATE (yychar); \
639 yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
646 #define YYERRCODE 256
649 /* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
650 If N is 0, then set CURRENT to the empty location which ends
651 the previous symbol: RHS[0] (always defined). */
653 #define YYRHSLOC(Rhs, K) ((Rhs)[K])
654 #ifndef YYLLOC_DEFAULT
655 # define YYLLOC_DEFAULT(Current, Rhs, N) \
659 (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
660 (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
661 (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
662 (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
666 (Current).first_line = (Current).last_line = \
667 YYRHSLOC (Rhs, 0).last_line; \
668 (Current).first_column = (Current).last_column = \
669 YYRHSLOC (Rhs, 0).last_column; \
672 #endif]b4_locations_if([[
675 /* YY_LOCATION_PRINT -- Print the location on the stream.
676 This macro was not mandated originally: define only if we know
677 we won't break user code: when these are the locations we know. */
679 #ifndef YY_LOCATION_PRINT
680 # if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
681 # define YY_LOCATION_PRINT(File, Loc) \
682 fprintf (File, "%d.%d-%d.%d", \
683 (Loc).first_line, (Loc).first_column, \
684 (Loc).last_line, (Loc).last_column)
686 # define YY_LOCATION_PRINT(File, Loc) ((void) 0)
691 /* This macro is provided for backward compatibility. */
693 #ifndef YY_LOCATION_PRINT
694 # define YY_LOCATION_PRINT(File, Loc) ((void) 0)
698 /* YYLEX -- calling `yylex' with the right arguments. */
701 # define YYLEX yylex (]b4_pure_if([&yylval[]b4_locations_if([, &yylloc]), ])[YYLEX_PARAM)
703 # define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
706 /* Enable debugging if requested. */
710 # include <stdio.h> /* INFRINGES ON USER NAME SPACE */
711 # define YYFPRINTF fprintf
714 # define YYDPRINTF(Args) \
720 # define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
724 YYFPRINTF (stderr, "%s ", Title); \
725 yy_symbol_print (stderr, \
726 Type, Value]b4_locations_if([, Location])[]b4_user_args[); \
727 YYFPRINTF (stderr, "\n"); \
731 ]b4_yy_symbol_print_generate([b4_c_function_def
])[
733 /*------------------------------------------------------------------.
734 | yy_stack_print -- Print the state stack from its BOTTOM up to its |
736 `------------------------------------------------------------------*/
738 ]b4_c_function_def([yy_stack_print
], [static void],
739 [[yytype_int16
*yybottom
], [yybottom
]],
740 [[yytype_int16
*yytop
], [yytop
]])[
742 YYFPRINTF (stderr
, "Stack now");
743 for (; yybottom
<= yytop
; yybottom
++)
745 int yybot
= *yybottom
;
746 YYFPRINTF (stderr
, " %d", yybot
);
748 YYFPRINTF (stderr
, "\n");
751 # define YY_STACK_PRINT(Bottom, Top) \
754 yy_stack_print ((Bottom), (Top)); \
758 /*------------------------------------------------.
759 | Report that the YYRULE is going to be reduced. |
760 `------------------------------------------------*/
762 ]b4_c_function_def([yy_reduce_print
], [static void],
763 [[yytype_int16
*yyssp
], [yyssp
]],
764 [[YYSTYPE
*yyvsp
], [yyvsp
]],
765 b4_locations_if([[[YYLTYPE
*yylsp
], [yylsp
]],
766 ])[[int yyrule
], [yyrule
]]m4_ifset([b4_parse_param
], [,
769 unsigned long int yylno
= yyrline
[yyrule
];
770 int yynrhs
= yyr2
[yyrule
];
772 YYFPRINTF (stderr
, "Reducing stack by rule %d (line %lu):\n",
774 /* The symbols being reduced. */
775 for (yyi
= 0; yyi
< yynrhs
; yyi
++)
777 YYFPRINTF (stderr
, " $%d = ", yyi
+ 1);
778 yy_symbol_print (stderr
,
779 yystos
[yyssp
[yyi
+ 1 - yynrhs
]],
780 &]b4_rhs_value(yynrhs
, yyi
+ 1)[
781 ]b4_locations_if([, &]b4_rhs_location(yynrhs
, yyi
+ 1))[]dnl
783 YYFPRINTF (stderr
, "\n");
787 # define YY_REDUCE_PRINT(Rule) \
790 yy_reduce_print (yyssp, yyvsp, ]b4_locations_if([yylsp, ])[Rule]b4_user_args[); \
793 /* Nonzero means print parse trace. It is left uninitialized so that
794 multiple parsers can coexist. */
797 # define YYDPRINTF(Args)
798 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)
799 # define YY_STACK_PRINT(Bottom, Top)
800 # define YY_REDUCE_PRINT(Rule)
801 #endif /* !YYDEBUG */
804 /* YYINITDEPTH -- initial size of the parser's stacks. */
806 # define YYINITDEPTH ]b4_stack_depth_init[
809 /* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
810 if the built-in stack extension method is used).
812 Do not make this value too large; the results are undefined if
813 YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
814 evaluated with infinite-precision integer arithmetic. */
817 # define YYMAXDEPTH ]b4_stack_depth_max[
825 # if defined __GLIBC__ && defined _STRING_H
826 # define yystrlen strlen
828 /* Return the length of YYSTR. */
829 ]b4_c_function_def([yystrlen
], [static YYSIZE_T
],
830 [[const char *yystr
], [yystr
]])[
833 for (yylen
= 0; yystr
[yylen
]; yylen
++)
841 # if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
842 # define yystpcpy stpcpy
844 /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
846 ]b4_c_function_def([yystpcpy
], [static char *],
847 [[char *yydest
], [yydest
]], [[const char *yysrc
], [yysrc
]])[
850 const char *yys
= yysrc
;
852 while ((*yyd
++ = *yys
++) != '\0')
861 /* Copy to YYRES the contents of YYSTR after stripping away unnecessary
862 quotes and backslashes, so that it's suitable for yyerror. The
863 heuristic is that double-quoting is unnecessary unless the string
864 contains an apostrophe, a comma, or backslash (other than
865 backslash-backslash). YYSTR is taken from yytname. If YYRES is
866 null, do not copy; instead, return the length of what the result
869 yytnamerr (char *yyres
, const char *yystr
)
874 char const *yyp
= yystr
;
881 goto do_not_strip_quotes
;
885 goto do_not_strip_quotes
;
898 do_not_strip_quotes
: ;
902 return yystrlen (yystr
);
904 return yystpcpy (yyres
, yystr
) - yyres
;
908 /* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
909 about the unexpected token YYTOKEN while in state YYSTATE.
911 Return 0 if *YYMSG was successfully written. Return 1 if an ordinary
912 "syntax error" message will suffice instead. Return 2 if *YYMSG is
913 not large enough to hold the message. In the last case, also set
914 *YYMSG_ALLOC to either (a) the required number of bytes or (b) zero
915 if the required number of bytes is too large to store. */
917 yysyntax_error (YYSIZE_T
*yymsg_alloc
, char **yymsg
,
918 int yystate
, int yytoken
)
920 int yyn
= yypact
[yystate
];
922 if (! (YYPACT_NINF
< yyn
&& yyn
<= YYLAST
))
926 YYSIZE_T yysize0
= yytnamerr (0, yytname
[yytoken
]);
927 YYSIZE_T yysize
= yysize0
;
929 enum { YYERROR_VERBOSE_ARGS_MAXIMUM
= 5 };
930 /* Internationalized format string. */
931 const char *yyformat
= 0;
932 /* Arguments of yyformat. */
933 char const *yyarg
[YYERROR_VERBOSE_ARGS_MAXIMUM
];
935 /* Start YYX at -YYN if negative to avoid negative indexes in
936 YYCHECK. In other words, skip the first -YYN actions for this
937 state because they are default actions. */
938 int yyxbegin
= yyn
< 0 ? -yyn
: 0;
940 /* Stay within bounds of both yycheck and yytname. */
941 int yychecklim
= YYLAST
- yyn
+ 1;
942 int yyxend
= yychecklim
< YYNTOKENS
? yychecklim
: YYNTOKENS
;
943 /* Number of reported tokens (one for the "unexpected", one per
948 yyarg
[yycount
++] = yytname
[yytoken
];
950 for (yyx
= yyxbegin
; yyx
< yyxend
; ++yyx
)
951 if (yycheck
[yyx
+ yyn
] == yyx
&& yyx
!= YYTERROR
952 && !yytable_value_is_error (yytable
[yyx
+ yyn
]))
954 if (yycount
== YYERROR_VERBOSE_ARGS_MAXIMUM
)
960 yyarg
[yycount
++] = yytname
[yyx
];
961 yysize1
= yysize
+ yytnamerr (0, yytname
[yyx
]);
962 if (! (yysize
<= yysize1
963 && yysize1
<= YYSTACK_ALLOC_MAXIMUM
))
974 #define YYCASE_(N, S) \
978 YYCASE_(1, YY_("syntax error, unexpected %s"));
979 YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
980 YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
981 YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
982 YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
986 yysize1
= yysize
+ yystrlen (yyformat
);
987 if (! (yysize
<= yysize1
&& yysize1
<= YYSTACK_ALLOC_MAXIMUM
))
995 if (*yymsg_alloc
< yysize
)
997 *yymsg_alloc
= 2 * yysize
;
998 if (! (yysize
<= *yymsg_alloc
999 && *yymsg_alloc
<= YYSTACK_ALLOC_MAXIMUM
))
1000 *yymsg_alloc
= YYSTACK_ALLOC_MAXIMUM
;
1004 /* Avoid sprintf, as that infringes on the user's name space.
1005 Don't have undefined behavior even if the translation
1006 produced a string with the wrong number of "%s"s. */
1010 while ((*yyp
= *yyformat
) != '\0')
1011 if (*yyp
== '%' && yyformat
[1] == 's' && yyi
< yycount
)
1013 yyp
+= yytnamerr (yyp
, yyarg
[yyi
++]);
1025 #endif /* YYERROR_VERBOSE */
1028 ]b4_yydestruct_generate([b4_c_function_def
])b4_push_if([], [[
1031 /* Prevent warnings from -Wmissing-prototypes. */
1032 #ifdef YYPARSE_PARAM
1033 ]b4_c_function_decl([yyparse
], [int],
1034 [[void *YYPARSE_PARAM
], [YYPARSE_PARAM
]])[
1035 #else /* ! YYPARSE_PARAM */
1036 ]b4_c_function_decl([yyparse
], [int], b4_parse_param
)[
1037 #endif /* ! YYPARSE_PARAM */]])b4_pure_if([], [
1039 b4_declare_scanner_communication_variables
])[]b4_push_if([[
1043 {]b4_declare_parser_state_variables
[
1044 /* Used to determine if this is the first time this instance has
1047 };]b4_pure_if([], [[
1049 static char yypstate_allocated
= 0;]])b4_pull_if([
1051 b4_c_function_def([[yyparse]], [[int]], b4_parse_param
)[
1053 return yypull_parse (0]m4_ifset([b4_parse_param
],
1054 [[, ]b4_c_args(b4_parse_param
)])[);
1057 ]b4_c_function_def([[yypull_parse]], [[int]],
1058 [[[yypstate
*yyps
]], [[yyps]]]m4_ifset([b4_parse_param
], [,
1062 yypstate
*yyps_local
;]b4_pure_if([[
1064 YYSTYPE yylval
;]b4_locations_if([[
1065 YYLTYPE yylloc
;]])])[
1068 yyps_local
= yypstate_new ();
1071 yyerror (]b4_yyerror_args
[YY_("memory exhausted"));]], [[
1072 if (!yypstate_allocated
)
1073 yyerror (]b4_yyerror_args
[YY_("memory exhausted"));]])[
1082 yypush_parse (yyps_local
]b4_pure_if([[, yychar
, &yylval
]b4_locations_if([[, &yylloc
]])])m4_ifset([b4_parse_param
], [, b4_c_args(b4_parse_param
)])[);
1083 } while (yystatus
== YYPUSH_MORE
);
1085 yypstate_delete (yyps_local
);
1089 /* Initialize the parser data structure. */
1090 ]b4_c_function_def([[yypstate_new]], [[yypstate
*]])[
1092 yypstate
*yyps
;]b4_pure_if([], [[
1093 if (yypstate_allocated
)
1095 yyps
= (yypstate
*) malloc (sizeof *yyps
);
1098 yyps
->yynew
= 1;]b4_pure_if([], [[
1099 yypstate_allocated
= 1;]])[
1103 ]b4_c_function_def([[yypstate_delete]], [[void]],
1104 [[[yypstate
*yyps
]], [[yyps]]])[
1107 /* If the stack was reallocated but the parse did not complete, then the
1108 stack still needs to be freed. */
1109 if (!yyps
->yynew
&& yyps
->yyss
!= yyps
->yyssa
)
1110 YYSTACK_FREE (yyps
->yyss
);
1112 free (yyps
);]b4_pure_if([], [[
1113 yypstate_allocated
= 0;]])[
1116 #define ]b4_prefix[nerrs yyps->]b4_prefix[nerrs]])[
1117 #define yystate yyps->yystate
1118 #define yyerrstatus yyps->yyerrstatus
1119 #define yyssa yyps->yyssa
1120 #define yyss yyps->yyss
1121 #define yyssp yyps->yyssp
1122 #define yyvsa yyps->yyvsa
1123 #define yyvs yyps->yyvs
1124 #define yyvsp yyps->yyvsp]b4_locations_if([[
1125 #define yylsa yyps->yylsa
1126 #define yyls yyps->yyls
1127 #define yylsp yyps->yylsp
1128 #define yyerror_range yyps->yyerror_range]])[
1129 #define yystacksize yyps->yystacksize
1136 ]b4_c_function_def([[yypush_parse]], [[int]],
1137 [[[yypstate
*yyps
]], [[yyps]]]b4_pure_if([,
1138 [[[int yypushed_char]], [[yypushed_char]]],
1139 [[[YYSTYPE
const *yypushed_val
]], [[yypushed_val]]]b4_locations_if([,
1140 [[[YYLTYPE
const *yypushed_loc
]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param
], [,
1141 b4_parse_param
]))], [[
1148 #ifdef YYPARSE_PARAM
1149 ]b4_c_function_def([yyparse
], [int],
1150 [[void *YYPARSE_PARAM
], [YYPARSE_PARAM
]])[
1151 #else /* ! YYPARSE_PARAM */
1152 ]b4_c_function_def([yyparse
], [int], b4_parse_param
)[
1154 {]b4_pure_if([b4_declare_scanner_communication_variables
1155 ])b4_push_if([b4_pure_if([], [[
1156 int yypushed_char
= yychar
;
1157 YYSTYPE yypushed_val
= yylval
;]b4_locations_if([[
1158 YYLTYPE yypushed_loc
= yylloc
;]])
1160 [b4_declare_parser_state_variables
1164 /* Lookahead token as an internal (translated) token number. */
1166 /* The variables used to return semantic value and location from the
1168 YYSTYPE yyval
;]b4_locations_if([[
1172 /* Buffer for error messages, and its allocated size. */
1174 char *yymsg
= yymsgbuf
;
1175 YYSIZE_T yymsg_alloc
= sizeof yymsgbuf
;
1178 #define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)]b4_locations_if([, yylsp -= (N)])[)
1180 /* The number of symbols on the RHS of the reduced rule.
1181 Keep to zero when no symbol should be popped. */
1182 int yylen
= 0;]b4_push_if([[
1186 yyn
= yypact
[yystate
];
1187 goto yyread_pushed_token
;
1192 yyvs
= yyvsa
;]b4_locations_if([[
1194 yystacksize
= YYINITDEPTH
;
1196 YYDPRINTF ((stderr
, "Starting parse\n"));
1201 yychar
= YYEMPTY
; /* Cause a token to be read. */
1203 /* Initialize stack pointers.
1204 Waste one element of value and location stack
1205 so that they stay on the same level as the state stack.
1206 The wasted elements are never initialized. */
1208 yyvsp
= yyvs
;]b4_locations_if([[
1211 #if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
1212 /* Initialize the default location before parsing starts. */
1213 yylloc
.first_line
= yylloc
.last_line
= ]b4_location_initial_line
[;
1214 yylloc
.first_column
= yylloc
.last_column
= ]b4_location_initial_column
[;
1216 m4_ifdef([b4_initial_action
],[
1217 m4_pushdef([b4_at_dollar
], [m4_define([b4_at_dollar_used
])yylloc
])dnl
1218 m4_pushdef([b4_dollar_dollar
], [m4_define([b4_dollar_dollar_used
])yylval
])dnl
1219 /* User initialization code. */
1220 b4_user_initial_action
1221 m4_popdef([b4_dollar_dollar
])dnl
1222 m4_popdef([b4_at_dollar
])])dnl
1223 m4_ifdef([b4_dollar_dollar_used
],[[ yyvsp
[0] = yylval
;
1225 m4_ifdef([b4_at_dollar_used
], [[ yylsp
[0] = yylloc
;
1229 /*------------------------------------------------------------.
1230 | yynewstate -- Push a new state, which is found in yystate. |
1231 `------------------------------------------------------------*/
1233 /* In all cases, when you get here, the value and location stacks
1234 have just been pushed. So pushing a state here evens the stacks. */
1240 if (yyss
+ yystacksize
- 1 <= yyssp
)
1242 /* Get the current used size of the three stacks, in elements. */
1243 YYSIZE_T yysize
= yyssp
- yyss
+ 1;
1247 /* Give user a chance to reallocate the stack. Use copies of
1248 these so that the &'s don't force the real ones into
1250 YYSTYPE
*yyvs1
= yyvs
;
1251 yytype_int16
*yyss1
= yyss
;]b4_locations_if([
1252 YYLTYPE
*yyls1
= yyls
;])[
1254 /* Each stack pointer address is followed by the size of the
1255 data in use in that stack, in bytes. This used to be a
1256 conditional around just the two extra args, but that might
1257 be undefined if yyoverflow is a macro. */
1258 yyoverflow (YY_("memory exhausted"),
1259 &yyss1
, yysize
* sizeof (*yyssp
),
1260 &yyvs1
, yysize
* sizeof (*yyvsp
),]b4_locations_if([
1261 &yyls1
, yysize
* sizeof (*yylsp
),])[
1268 #else /* no yyoverflow */
1269 # ifndef YYSTACK_RELOCATE
1270 goto yyexhaustedlab
;
1272 /* Extend the stack our own way. */
1273 if (YYMAXDEPTH
<= yystacksize
)
1274 goto yyexhaustedlab
;
1276 if (YYMAXDEPTH
< yystacksize
)
1277 yystacksize
= YYMAXDEPTH
;
1280 yytype_int16
*yyss1
= yyss
;
1281 union yyalloc
*yyptr
=
1282 (union yyalloc
*) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize
));
1284 goto yyexhaustedlab
;
1285 YYSTACK_RELOCATE (yyss_alloc
, yyss
);
1286 YYSTACK_RELOCATE (yyvs_alloc
, yyvs
);]b4_locations_if([
1287 YYSTACK_RELOCATE (yyls_alloc
, yyls
);])[
1288 # undef YYSTACK_RELOCATE
1290 YYSTACK_FREE (yyss1
);
1293 #endif /* no yyoverflow */
1295 yyssp
= yyss
+ yysize
- 1;
1296 yyvsp
= yyvs
+ yysize
- 1;]b4_locations_if([
1297 yylsp
= yyls
+ yysize
- 1;])[
1299 YYDPRINTF ((stderr
, "Stack size increased to %lu\n",
1300 (unsigned long int) yystacksize
));
1302 if (yyss
+ yystacksize
- 1 <= yyssp
)
1306 YYDPRINTF ((stderr
, "Entering state %d\n", yystate
));
1308 if (yystate
== YYFINAL
)
1318 /* Do appropriate processing given the current state. Read a
1319 lookahead token if we need one and don't already have one. */
1321 /* First try to decide what to do without reference to lookahead token. */
1322 yyn
= yypact
[yystate
];
1323 if (yypact_value_is_default (yyn
))
1326 /* Not known => get a lookahead token if don't already have one. */
1328 /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
1329 if (yychar
== YYEMPTY
)
1332 {]b4_use_push_for_pull_if([], [[
1333 YYDPRINTF ((stderr
, "Return for a new token:\n"));]])[
1334 yyresult
= YYPUSH_MORE
;
1337 yyps
->yynew
= 0;]b4_pure_if([], [[
1338 /* Restoring the pushed token is only necessary for the first
1339 yypush_parse invocation since subsequent invocations don't overwrite
1340 it before jumping to yyread_pushed_token. */
1341 yychar
= yypushed_char
;
1342 yylval
= yypushed_val
;]b4_locations_if([[
1343 yylloc
= yypushed_loc
;]])])[
1344 yyread_pushed_token
:]])[
1345 YYDPRINTF ((stderr
, "Reading a token: "));]b4_push_if([b4_pure_if([[
1346 yychar
= yypushed_char
;
1348 yylval
= *yypushed_val
;]b4_locations_if([[
1350 yylloc
= *yypushed_loc
;]])])], [[
1354 if (yychar
<= YYEOF
)
1356 yychar
= yytoken
= YYEOF
;
1357 YYDPRINTF ((stderr
, "Now at end of input.\n"));
1361 yytoken
= YYTRANSLATE (yychar
);
1362 YY_SYMBOL_PRINT ("Next token is", yytoken
, &yylval
, &yylloc
);
1365 /* If the proper action on seeing token YYTOKEN is to reduce or to
1366 detect an error, take that action. */
1368 if (yyn
< 0 || YYLAST
< yyn
|| yycheck
[yyn
] != yytoken
)
1373 if (yytable_value_is_error (yyn
))
1379 /* Count tokens shifted since error; after three, turn off error
1384 /* Shift the lookahead token. */
1385 YY_SYMBOL_PRINT ("Shifting", yytoken
, &yylval
, &yylloc
);
1387 /* Discard the shifted token. */
1392 ]b4_locations_if([ *++yylsp
= yylloc
;])[
1396 /*-----------------------------------------------------------.
1397 | yydefault -- do the default action for the current state. |
1398 `-----------------------------------------------------------*/
1400 yyn
= yydefact
[yystate
];
1406 /*-----------------------------.
1407 | yyreduce -- Do a reduction. |
1408 `-----------------------------*/
1410 /* yyn is the number of a rule to reduce with. */
1413 /* If YYLEN is nonzero, implement the default value of the action:
1416 Otherwise, the following line sets YYVAL to garbage.
1417 This behavior is undocumented and Bison
1418 users should not rely upon it. Assigning to YYVAL
1419 unconditionally makes the parser a bit smaller, and it avoids a
1420 GCC warning that YYVAL may be used uninitialized. */
1421 yyval
= yyvsp
[1-yylen
];
1424 [[ /* Default location. */
1425 YYLLOC_DEFAULT (yyloc
, (yylsp
- yylen
), yylen
);]])[
1426 YY_REDUCE_PRINT (yyn
);
1432 YY_SYMBOL_PRINT ("-> $$ =", yyr1
[yyn
], &yyval
, &yyloc
);
1436 YY_STACK_PRINT (yyss
, yyssp
);
1438 *++yyvsp
= yyval
;]b4_locations_if([
1439 *++yylsp
= yyloc
;])[
1441 /* Now `shift' the result of the reduction. Determine what state
1442 that goes to, based on the state we popped back to and the rule
1443 number reduced by. */
1447 yystate
= yypgoto
[yyn
- YYNTOKENS
] + *yyssp
;
1448 if (0 <= yystate
&& yystate
<= YYLAST
&& yycheck
[yystate
] == *yyssp
)
1449 yystate
= yytable
[yystate
];
1451 yystate
= yydefgoto
[yyn
- YYNTOKENS
];
1456 /*------------------------------------.
1457 | yyerrlab -- here on detecting error |
1458 `------------------------------------*/
1460 /* If not already recovering from an error, report this error. */
1464 #if ! YYERROR_VERBOSE
1465 yyerror (]b4_yyerror_args
[YY_("syntax error"));
1469 int yysyntax_error_status
=
1470 yysyntax_error (&yymsg_alloc
, &yymsg
, yystate
, yytoken
);
1471 if (yysyntax_error_status
== 2 && 0 < yymsg_alloc
)
1473 if (yymsg
!= yymsgbuf
)
1474 YYSTACK_FREE (yymsg
);
1475 yymsg
= (char *) YYSTACK_ALLOC (yymsg_alloc
);
1479 yymsg_alloc
= sizeof yymsgbuf
;
1481 if (yysyntax_error_status
== 0)
1482 yyerror (]b4_yyerror_args
[yymsg
);
1484 yyerror (]b4_yyerror_args
[YY_("syntax error"));
1485 if (yysyntax_error_status
== 2)
1486 goto yyexhaustedlab
;
1492 ]b4_locations_if([[ yyerror_range
[0] = yylloc
;]])[
1494 if (yyerrstatus
== 3)
1496 /* If just tried and failed to reuse lookahead token after an
1497 error, discard it. */
1499 if (yychar
<= YYEOF
)
1501 /* Return failure if at end of input. */
1502 if (yychar
== YYEOF
)
1507 yydestruct ("Error: discarding",
1508 yytoken
, &yylval
]b4_locations_if([, &yylloc
])[]b4_user_args
[);
1513 /* Else will try to reuse lookahead token after shifting the error
1518 /*---------------------------------------------------.
1519 | yyerrorlab -- error raised explicitly by YYERROR. |
1520 `---------------------------------------------------*/
1523 /* Pacify compilers like GCC when the user code never invokes
1524 YYERROR and the label yyerrorlab therefore never appears in user
1526 if (/*CONSTCOND*/ 0)
1529 ]b4_locations_if([[ yyerror_range
[0] = yylsp
[1-yylen
];
1530 ]])[ /* Do not reclaim the symbols of the rule which action triggered
1534 YY_STACK_PRINT (yyss
, yyssp
);
1539 /*-------------------------------------------------------------.
1540 | yyerrlab1 -- common code for both syntax error and YYERROR. |
1541 `-------------------------------------------------------------*/
1543 yyerrstatus
= 3; /* Each real token shifted decrements this. */
1547 yyn
= yypact
[yystate
];
1548 if (!yypact_value_is_default (yyn
))
1551 if (0 <= yyn
&& yyn
<= YYLAST
&& yycheck
[yyn
] == YYTERROR
)
1559 /* Pop the current state because it cannot handle the error token. */
1563 ]b4_locations_if([[ yyerror_range
[0] = *yylsp
;]])[
1564 yydestruct ("Error: popping",
1565 yystos
[yystate
], yyvsp
]b4_locations_if([, yylsp
])[]b4_user_args
[);
1568 YY_STACK_PRINT (yyss
, yyssp
);
1573 yyerror_range
[1] = yylloc
;
1574 /* Using YYLLOC is tempting, but would change the location of
1575 the lookahead. YYLOC is available though. */
1576 YYLLOC_DEFAULT (yyloc
, (yyerror_range
- 1), 2);
1577 *++yylsp
= yyloc
;]])[
1579 /* Shift the error token. */
1580 YY_SYMBOL_PRINT ("Shifting", yystos
[yyn
], yyvsp
, yylsp
);
1586 /*-------------------------------------.
1587 | yyacceptlab -- YYACCEPT comes here. |
1588 `-------------------------------------*/
1593 /*-----------------------------------.
1594 | yyabortlab -- YYABORT comes here. |
1595 `-----------------------------------*/
1600 #if !defined(yyoverflow) || YYERROR_VERBOSE
1601 /*-------------------------------------------------.
1602 | yyexhaustedlab -- memory exhaustion comes here. |
1603 `-------------------------------------------------*/
1605 yyerror (]b4_yyerror_args
[YY_("memory exhausted"));
1611 if (yychar
!= YYEMPTY
)
1612 yydestruct ("Cleanup: discarding lookahead",
1613 yytoken
, &yylval
]b4_locations_if([, &yylloc
])[]b4_user_args
[);
1614 /* Do not reclaim the symbols of the rule which action triggered
1615 this YYABORT or YYACCEPT. */
1617 YY_STACK_PRINT (yyss
, yyssp
);
1618 while (yyssp
!= yyss
)
1620 yydestruct ("Cleanup: popping",
1621 yystos
[*yyssp
], yyvsp
]b4_locations_if([, yylsp
])[]b4_user_args
[);
1626 YYSTACK_FREE (yyss
);
1627 #endif]b4_push_if([[
1632 if (yymsg
!= yymsgbuf
)
1633 YYSTACK_FREE (yymsg
);
1635 /* Make sure YYID is used. */
1636 return YYID (yyresult
);
1641 [@
output(b4_spec_defines_file@
)@
1642 b4_copyright([Interface
for Bison
's Yacc-like parsers in C])dnl
1644 b4_percent_code_get([[requires]])[]dnl
1646 b4_token_enums_defines(b4_tokens)
1648 [#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
1649 ]m4_ifdef([b4_stype],
1650 [[typedef union ]b4_union_name[
1654 # define YYSTYPE_IS_TRIVIAL 1]],
1655 [m4_if(b4_tag_seen_flag, 0,
1656 [[typedef int YYSTYPE;
1657 # define YYSTYPE_IS_TRIVIAL 1]])])[
1658 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
1659 # define YYSTYPE_IS_DECLARED 1
1662 ]b4_pure_if([], [[extern YYSTYPE ]b4_prefix[lval;]])
1665 [#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
1666 typedef struct YYLTYPE
1673 # define yyltype YYLTYPE /* obsolescent; will be withdrawn */
1674 # define YYLTYPE_IS_DECLARED 1
1675 # define YYLTYPE_IS_TRIVIAL 1
1678 ]b4_pure_if([], [[extern YYLTYPE ]b4_prefix[lloc;]])
1679 )dnl b4_locations_if
1681 #ifndef YYPUSH_DECLS
1682 # define YYPUSH_DECLS
1683 struct ]b4_prefix[pstate;
1684 typedef struct ]b4_prefix[pstate ]b4_prefix[pstate;
1685 enum { YYPUSH_MORE = 4 };
1686 ]b4_pull_if([b4_c_function_decl([b4_prefix[parse]], [[int]], b4_parse_param)
1687 ])b4_c_function_decl([b4_prefix[push_parse]], [[int]],
1688 [[b4_prefix[pstate *yyps]], [[yyps]]]b4_pure_if([,
1689 [[[int yypushed_char]], [[yypushed_char]]],
1690 [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
1691 [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
1693 b4_pull_if([b4_c_function_decl([b4_prefix[pull_parse]], [[int]],
1694 [[b4_prefix[pstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
1696 b4_c_function_decl([b4_prefix[pstate_new]], [b4_prefix[pstate *]],
1698 b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
1699 [[b4_prefix[pstate *yyps]], [[yyps]]])[
1702 b4_percent_code_get([[provides]])[]dnl
1705 m4_popdef([b4_copyright_years])