source: EcnlProtoTool/trunk/tools/share/bison/yacc.c@ 270

Last change on this file since 270 was 270, checked in by coas-nagasima, 7 years ago

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1 -*- C -*-
2
3# Yacc compatible skeleton for Bison
4
5# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
6# 2007, 2008 Free Software Foundation, Inc.
7
8# This program is free software: you can redistribute it and/or modify
9# it under the terms of the GNU General Public License as published by
10# the Free Software Foundation, either version 3 of the License, or
11# (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program. If not, see <http://www.gnu.org/licenses/>.
20
21# Check the value of %define api.push_pull.
22b4_percent_define_default([[api.push_pull]], [[pull]])
23b4_percent_define_check_values([[[[api.push_pull]],
24 [[pull]], [[push]], [[both]]]])
25b4_define_flag_if([pull]) m4_define([b4_pull_flag], [[1]])
26b4_define_flag_if([push]) m4_define([b4_push_flag], [[1]])
27m4_case(b4_percent_define_get([[api.push_pull]]),
28 [pull], [m4_define([b4_push_flag], [[0]])],
29 [push], [m4_define([b4_pull_flag], [[0]])])
30
31# Handle BISON_USE_PUSH_FOR_PULL for the test suite. So that push parsing
32# tests function as written, don't let BISON_USE_PUSH_FOR_PULL modify Bison's
33# behavior at all when push parsing is already requested.
34b4_define_flag_if([use_push_for_pull])
35b4_use_push_for_pull_if([
36 b4_push_if([m4_define([b4_use_push_for_pull_flag], [[0]])],
37 [m4_define([b4_push_flag], [[1]])])])
38
39m4_include(b4_pkgdatadir/[c.m4])
40
41## ---------------- ##
42## Default values. ##
43## ---------------- ##
44
45# Stack parameters.
46m4_define_default([b4_stack_depth_max], [10000])
47m4_define_default([b4_stack_depth_init], [200])
48
49
50## ------------------------ ##
51## Pure/impure interfaces. ##
52## ------------------------ ##
53
54b4_percent_define_default([[api.pure]], [[false]])
55b4_define_flag_if([pure])
56m4_define([b4_pure_flag],
57 [b4_percent_define_flag_if([[api.pure]], [[1]], [[0]])])
58
59# b4_yacc_pure_if(IF-TRUE, IF-FALSE)
60# ----------------------------------
61# Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise.
62m4_define([b4_yacc_pure_if],
63[b4_pure_if([m4_ifset([b4_parse_param],
64 [$1], [$2])],
65 [$2])])
66
67
68# b4_yyerror_args
69# ---------------
70# Arguments passed to yyerror: user args plus yylloc.
71m4_define([b4_yyerror_args],
72[b4_yacc_pure_if([b4_locations_if([&yylloc, ])])dnl
73m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
74
75
76# b4_lex_param
77# ------------
78# Accumulate in b4_lex_param all the yylex arguments.
79# b4_lex_param arrives quoted twice, but we want to keep only one level.
80m4_define([b4_lex_param],
81m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl
82b4_locations_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl
83m4_ifdef([b4_lex_param], b4_lex_param)))
84
85
86## ------------ ##
87## Data Types. ##
88## ------------ ##
89
90# b4_int_type(MIN, MAX)
91# ---------------------
92# Return the smallest int type able to handle numbers ranging from
93# MIN to MAX (included). Overwrite the version from c.m4, which
94# uses only C89 types, so that the user can override the shorter
95# types, and so that pre-C89 compilers are handled correctly.
96m4_define([b4_int_type],
97[m4_if(b4_ints_in($@, [0], [255]), [1], [yytype_uint8],
98 b4_ints_in($@, [-128], [127]), [1], [yytype_int8],
99
100 b4_ints_in($@, [0], [65535]), [1], [yytype_uint16],
101 b4_ints_in($@, [-32768], [32767]), [1], [yytype_int16],
102
103 m4_eval([0 <= $1]), [1], [unsigned int],
104
105 [int])])
106
107
108## ----------------- ##
109## Semantic Values. ##
110## ----------------- ##
111
112
113# b4_lhs_value([TYPE])
114# --------------------
115# Expansion of $<TYPE>$.
116m4_define([b4_lhs_value],
117[(yyval[]m4_ifval([$1], [.$1]))])
118
119
120# b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
121# --------------------------------------
122# Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
123# symbols on RHS.
124m4_define([b4_rhs_value],
125[(yyvsp@{($2) - ($1)@}m4_ifval([$3], [.$3]))])
126
127
128
129## ----------- ##
130## Locations. ##
131## ----------- ##
132
133# b4_lhs_location()
134# -----------------
135# Expansion of @$.
136m4_define([b4_lhs_location],
137[(yyloc)])
138
139
140# b4_rhs_location(RULE-LENGTH, NUM)
141# ---------------------------------
142# Expansion of @NUM, where the current rule has RULE-LENGTH symbols
143# on RHS.
144m4_define([b4_rhs_location],
145[(yylsp@{($2) - ($1)@})])
146
147
148
149## --------------------------------------------------------- ##
150## Defining symbol actions, e.g., printers and destructors. ##
151## --------------------------------------------------------- ##
152
153# We do want M4 expansion after # for CPP macros.
154m4_changecom()
155m4_divert_push(0)dnl
156@output(b4_parser_file_name@)
157b4_copyright([Skeleton implementation for Bison's Yacc-like parsers in C],dnl '
158 [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])[
159
160/* C LALR(1) parser skeleton written by Richard Stallman, by
161 simplifying the original so-called "semantic" parser. */
162
163/* All symbols defined below should begin with yy or YY, to avoid
164 infringing on user name space. This should be done even for local
165 variables, as they might otherwise be expanded by user macros.
166 There are some unavoidable exceptions within include files to
167 define necessary library symbols; they are noted "INFRINGES ON
168 USER NAME SPACE" below. */
169
170]b4_identification
171b4_percent_code_get([[top]])[]dnl
172m4_if(b4_prefix, [yy], [],
173[[/* Substitute the variable and function names. */
174]b4_pull_if([[#define yyparse ]b4_prefix[parse
175]])b4_push_if([[#define yypush_parse ]b4_prefix[push_parse
176]b4_pull_if([[#define yypull_parse ]b4_prefix[pull_parse
177]])[#define yypstate_new ]b4_prefix[pstate_new
178#define yypstate_delete ]b4_prefix[pstate_delete
179#define yypstate ]b4_prefix[pstate
180]])[#define yylex ]b4_prefix[lex
181#define yyerror ]b4_prefix[error
182#define yylval ]b4_prefix[lval
183#define yychar ]b4_prefix[char
184#define yydebug ]b4_prefix[debug
185#define yynerrs ]b4_prefix[nerrs
186]b4_locations_if([[#define yylloc ]b4_prefix[lloc]])])[
187
188/* Copy the first part of user declarations. */
189]b4_user_pre_prologue[
190
191/* Enabling traces. */
192#ifndef YYDEBUG
193# define YYDEBUG ]b4_debug_flag[
194#endif
195
196/* Enabling verbose error messages. */
197#ifdef YYERROR_VERBOSE
198# undef YYERROR_VERBOSE
199# define YYERROR_VERBOSE 1
200#else
201# define YYERROR_VERBOSE ]b4_error_verbose_flag[
202#endif
203
204/* Enabling the token table. */
205#ifndef YYTOKEN_TABLE
206# define YYTOKEN_TABLE ]b4_token_table[
207#endif
208
209]b4_percent_code_get([[requires]])[]dnl
210
211b4_token_enums_defines(b4_tokens)[
212
213#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
214]m4_ifdef([b4_stype],
215[[typedef union ]b4_union_name[
216{
217]b4_user_stype[
218} YYSTYPE;
219# define YYSTYPE_IS_TRIVIAL 1]],
220[m4_if(b4_tag_seen_flag, 0,
221[[typedef int YYSTYPE;
222# define YYSTYPE_IS_TRIVIAL 1]])])[
223# define yystype YYSTYPE /* obsolescent; will be withdrawn */
224# define YYSTYPE_IS_DECLARED 1
225#endif]b4_locations_if([[
226
227#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
228typedef struct YYLTYPE
229{
230 int first_line;
231 int first_column;
232 int last_line;
233 int last_column;
234} YYLTYPE;
235# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
236# define YYLTYPE_IS_DECLARED 1
237# define YYLTYPE_IS_TRIVIAL 1
238#endif]])b4_push_if([[
239
240#ifndef YYPUSH_DECLS
241# define YYPUSH_DECLS
242struct yypstate;
243typedef struct yypstate yypstate;
244enum { YYPUSH_MORE = 4 };
245
246]b4_pull_if([b4_c_function_decl([[yyparse]], [[int]], b4_parse_param)
247])b4_c_function_decl([[yypush_parse]], [[int]],
248 [[[yypstate *yyps]], [[yyps]]]b4_pure_if([,
249 [[[int yypushed_char]], [[yypushed_char]]],
250 [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
251 [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
252 b4_parse_param]))
253b4_pull_if([b4_c_function_decl([[yypull_parse]], [[int]],
254 [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
255 b4_parse_param]))])
256b4_c_function_decl([[yypstate_new]], [[yypstate *]], [[[void]], []])
257b4_c_function_decl([[yypstate_delete]], [[void]],
258 [[[yypstate *yyps]], [[yyps]]])[
259#endif]])
260
261b4_percent_code_get([[provides]])[]dnl
262
263[/* Copy the second part of user declarations. */
264]b4_user_post_prologue
265b4_percent_code_get[]dnl
266
267[#ifdef short
268# undef short
269#endif
270
271#ifdef YYTYPE_UINT8
272typedef YYTYPE_UINT8 yytype_uint8;
273#else
274typedef unsigned char yytype_uint8;
275#endif
276
277#ifdef YYTYPE_INT8
278typedef YYTYPE_INT8 yytype_int8;
279#elif ]b4_c_modern[
280typedef signed char yytype_int8;
281#else
282typedef short int yytype_int8;
283#endif
284
285#ifdef YYTYPE_UINT16
286typedef YYTYPE_UINT16 yytype_uint16;
287#else
288typedef unsigned short int yytype_uint16;
289#endif
290
291#ifdef YYTYPE_INT16
292typedef YYTYPE_INT16 yytype_int16;
293#else
294typedef short int yytype_int16;
295#endif
296
297#ifndef YYSIZE_T
298# ifdef __SIZE_TYPE__
299# define YYSIZE_T __SIZE_TYPE__
300# elif defined size_t
301# define YYSIZE_T size_t
302# elif ! defined YYSIZE_T && ]b4_c_modern[
303# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
304# define YYSIZE_T size_t
305# else
306# define YYSIZE_T unsigned int
307# endif
308#endif
309
310#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
311
312#ifndef YY_
313# if YYENABLE_NLS
314# if ENABLE_NLS
315# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
316# define YY_(msgid) dgettext ("bison-runtime", msgid)
317# endif
318# endif
319# ifndef YY_
320# define YY_(msgid) msgid
321# endif
322#endif
323
324/* Suppress unused-variable warnings by "using" E. */
325#if ! defined lint || defined __GNUC__
326# define YYUSE(e) ((void) (e))
327#else
328# define YYUSE(e) /* empty */
329#endif
330
331/* Identity function, used to suppress warnings about constant conditions. */
332#ifndef lint
333# define YYID(n) (n)
334#else
335]b4_c_function_def([YYID], [static int], [[int yyi], [yyi]])[
336{
337 return yyi;
338}
339#endif
340
341#if ! defined yyoverflow || YYERROR_VERBOSE
342
343]b4_push_if([],
344[[/* The parser invokes alloca or malloc; define the necessary symbols. */
345
346# ifdef YYSTACK_USE_ALLOCA
347# if YYSTACK_USE_ALLOCA
348# ifdef __GNUC__
349# define YYSTACK_ALLOC __builtin_alloca
350# elif defined __BUILTIN_VA_ARG_INCR
351# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
352# elif defined _AIX
353# define YYSTACK_ALLOC __alloca
354# elif defined _MSC_VER
355# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
356# define alloca _alloca
357# else
358# define YYSTACK_ALLOC alloca
359# if ! defined _ALLOCA_H && ! defined _STDLIB_H && ]b4_c_modern[
360# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
361# ifndef _STDLIB_H
362# define _STDLIB_H 1
363# endif
364# endif
365# endif
366# endif
367# endif
368
369]])dnl
370[# ifdef YYSTACK_ALLOC
371 /* Pacify GCC's `empty if-body' warning. */
372# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
373# ifndef YYSTACK_ALLOC_MAXIMUM
374 /* The OS might guarantee only one guard page at the bottom of the stack,
375 and a page size can be as small as 4096 bytes. So we cannot safely
376 invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
377 to allow for a few compiler-allocated temporary stack slots. */
378# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
379# endif
380# else
381# define YYSTACK_ALLOC YYMALLOC
382# define YYSTACK_FREE YYFREE
383# ifndef YYSTACK_ALLOC_MAXIMUM
384# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
385# endif
386# if (defined __cplusplus && ! defined _STDLIB_H \
387 && ! ((defined YYMALLOC || defined malloc) \
388 && (defined YYFREE || defined free)))
389# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
390# ifndef _STDLIB_H
391# define _STDLIB_H 1
392# endif
393# endif
394# ifndef YYMALLOC
395# define YYMALLOC malloc
396# if ! defined malloc && ! defined _STDLIB_H && ]b4_c_modern[
397void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
398# endif
399# endif
400# ifndef YYFREE
401# define YYFREE free
402# if ! defined free && ! defined _STDLIB_H && ]b4_c_modern[
403void free (void *); /* INFRINGES ON USER NAME SPACE */
404# endif
405# endif
406# endif
407#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
408
409
410#if (! defined yyoverflow \
411 && (! defined __cplusplus \
412 || (]b4_locations_if([[defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
413 && ]])[defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
414
415/* A type that is properly aligned for any stack member. */
416union yyalloc
417{
418 yytype_int16 yyss_alloc;
419 YYSTYPE yyvs_alloc;]b4_locations_if([
420 YYLTYPE yyls_alloc;])[
421};
422
423/* The size of the maximum gap between one aligned stack and the next. */
424# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
425
426/* The size of an array large to enough to hold all stacks, each with
427 N elements. */
428]b4_locations_if(
429[# define YYSTACK_BYTES(N) \
430 ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
431 + 2 * YYSTACK_GAP_MAXIMUM)],
432[# define YYSTACK_BYTES(N) \
433 ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
434 + YYSTACK_GAP_MAXIMUM)])[
435
436/* Copy COUNT objects from FROM to TO. The source and destination do
437 not overlap. */
438# ifndef YYCOPY
439# if defined __GNUC__ && 1 < __GNUC__
440# define YYCOPY(To, From, Count) \
441 __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
442# else
443# define YYCOPY(To, From, Count) \
444 do \
445 { \
446 YYSIZE_T yyi; \
447 for (yyi = 0; yyi < (Count); yyi++) \
448 (To)[yyi] = (From)[yyi]; \
449 } \
450 while (YYID (0))
451# endif
452# endif
453
454/* Relocate STACK from its old location to the new one. The
455 local variables YYSIZE and YYSTACKSIZE give the old and new number of
456 elements in the stack, and YYPTR gives the new location of the
457 stack. Advance YYPTR to a properly aligned location for the next
458 stack. */
459# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
460 do \
461 { \
462 YYSIZE_T yynewbytes; \
463 YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
464 Stack = &yyptr->Stack_alloc; \
465 yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
466 yyptr += yynewbytes / sizeof (*yyptr); \
467 } \
468 while (YYID (0))
469
470#endif
471
472/* YYFINAL -- State number of the termination state. */
473#define YYFINAL ]b4_final_state_number[
474/* YYLAST -- Last index in YYTABLE. */
475#define YYLAST ]b4_last[
476
477/* YYNTOKENS -- Number of terminals. */
478#define YYNTOKENS ]b4_tokens_number[
479/* YYNNTS -- Number of nonterminals. */
480#define YYNNTS ]b4_nterms_number[
481/* YYNRULES -- Number of rules. */
482#define YYNRULES ]b4_rules_number[
483/* YYNRULES -- Number of states. */
484#define YYNSTATES ]b4_states_number[
485
486/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
487#define YYUNDEFTOK ]b4_undef_token_number[
488#define YYMAXUTOK ]b4_user_token_number_max[
489
490#define YYTRANSLATE(YYX) \
491 ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
492
493/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
494static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
495{
496 ]b4_translate[
497};
498
499#if YYDEBUG
500/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
501 YYRHS. */
502static const ]b4_int_type_for([b4_prhs])[ yyprhs[] =
503{
504 ]b4_prhs[
505};
506
507/* YYRHS -- A `-1'-separated list of the rules' RHS. */
508static const ]b4_int_type_for([b4_rhs])[ yyrhs[] =
509{
510 ]b4_rhs[
511};
512
513/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
514static const ]b4_int_type_for([b4_rline])[ yyrline[] =
515{
516 ]b4_rline[
517};
518#endif
519
520#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
521/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
522 First, the terminals, then, starting at YYNTOKENS, nonterminals. */
523static const char *const yytname[] =
524{
525 ]b4_tname[
526};
527#endif
528
529# ifdef YYPRINT
530/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
531 token YYLEX-NUM. */
532static const ]b4_int_type_for([b4_toknum])[ yytoknum[] =
533{
534 ]b4_toknum[
535};
536# endif
537
538/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
539static const ]b4_int_type_for([b4_r1])[ yyr1[] =
540{
541 ]b4_r1[
542};
543
544/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
545static const ]b4_int_type_for([b4_r2])[ yyr2[] =
546{
547 ]b4_r2[
548};
549
550/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
551 STATE-NUM when YYTABLE doesn't specify something else to do. Zero
552 means the default is an error. */
553static const ]b4_int_type_for([b4_defact])[ yydefact[] =
554{
555 ]b4_defact[
556};
557
558/* YYDEFGOTO[NTERM-NUM]. */
559static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
560{
561 ]b4_defgoto[
562};
563
564/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
565 STATE-NUM. */
566#define YYPACT_NINF ]b4_pact_ninf[
567static const ]b4_int_type_for([b4_pact])[ yypact[] =
568{
569 ]b4_pact[
570};
571
572/* YYPGOTO[NTERM-NUM]. */
573static const ]b4_int_type_for([b4_pgoto])[ yypgoto[] =
574{
575 ]b4_pgoto[
576};
577
578/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
579 positive, shift that token. If negative, reduce the rule which
580 number is the opposite. If zero, do what YYDEFACT says.
581 If YYTABLE_NINF, syntax error. */
582#define YYTABLE_NINF ]b4_table_ninf[
583static const ]b4_int_type_for([b4_table])[ yytable[] =
584{
585 ]b4_table[
586};
587
588static const ]b4_int_type_for([b4_check])[ yycheck[] =
589{
590 ]b4_check[
591};
592
593/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
594 symbol of state STATE-NUM. */
595static const ]b4_int_type_for([b4_stos])[ yystos[] =
596{
597 ]b4_stos[
598};
599
600#define yyerrok (yyerrstatus = 0)
601#define yyclearin (yychar = YYEMPTY)
602#define YYEMPTY (-2)
603#define YYEOF 0
604
605#define YYACCEPT goto yyacceptlab
606#define YYABORT goto yyabortlab
607#define YYERROR goto yyerrorlab
608
609
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. */
613
614#define YYFAIL goto yyerrlab
615
616#define YYRECOVERING() (!!yyerrstatus)
617
618#define YYBACKUP(Token, Value) \
619do \
620 if (yychar == YYEMPTY && yylen == 1) \
621 { \
622 yychar = (Token); \
623 yylval = (Value); \
624 yytoken = YYTRANSLATE (yychar); \
625 YYPOPSTACK (1); \
626 goto yybackup; \
627 } \
628 else \
629 { \
630 yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
631 YYERROR; \
632 } \
633while (YYID (0))
634
635
636#define YYTERROR 1
637#define YYERRCODE 256
638
639
640/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
641 If N is 0, then set CURRENT to the empty location which ends
642 the previous symbol: RHS[0] (always defined). */
643
644#define YYRHSLOC(Rhs, K) ((Rhs)[K])
645#ifndef YYLLOC_DEFAULT
646# define YYLLOC_DEFAULT(Current, Rhs, N) \
647 do \
648 if (YYID (N)) \
649 { \
650 (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
651 (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
652 (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
653 (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
654 } \
655 else \
656 { \
657 (Current).first_line = (Current).last_line = \
658 YYRHSLOC (Rhs, 0).last_line; \
659 (Current).first_column = (Current).last_column = \
660 YYRHSLOC (Rhs, 0).last_column; \
661 } \
662 while (YYID (0))
663#endif
664
665
666/* YY_LOCATION_PRINT -- Print the location on the stream.
667 This macro was not mandated originally: define only if we know
668 we won't break user code: when these are the locations we know. */
669
670#ifndef YY_LOCATION_PRINT
671# if YYLTYPE_IS_TRIVIAL
672# define YY_LOCATION_PRINT(File, Loc) \
673 fprintf (File, "%d.%d-%d.%d", \
674 (Loc).first_line, (Loc).first_column, \
675 (Loc).last_line, (Loc).last_column)
676# else
677# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
678# endif
679#endif
680
681
682/* YYLEX -- calling `yylex' with the right arguments. */
683
684#ifdef YYLEX_PARAM
685# define YYLEX yylex (]b4_pure_if([&yylval[]b4_locations_if([, &yylloc]), ])[YYLEX_PARAM)
686#else
687# define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
688#endif
689
690/* Enable debugging if requested. */
691#if YYDEBUG
692
693# ifndef YYFPRINTF
694# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
695# define YYFPRINTF fprintf
696# endif
697
698# define YYDPRINTF(Args) \
699do { \
700 if (yydebug) \
701 YYFPRINTF Args; \
702} while (YYID (0))
703
704# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
705do { \
706 if (yydebug) \
707 { \
708 YYFPRINTF (stderr, "%s ", Title); \
709 yy_symbol_print (stderr, \
710 Type, Value]b4_locations_if([, Location])[]b4_user_args[); \
711 YYFPRINTF (stderr, "\n"); \
712 } \
713} while (YYID (0))
714
715]b4_yy_symbol_print_generate([b4_c_function_def])[
716
717/*------------------------------------------------------------------.
718| yy_stack_print -- Print the state stack from its BOTTOM up to its |
719| TOP (included). |
720`------------------------------------------------------------------*/
721
722]b4_c_function_def([yy_stack_print], [static void],
723 [[yytype_int16 *yybottom], [yybottom]],
724 [[yytype_int16 *yytop], [yytop]])[
725{
726 YYFPRINTF (stderr, "Stack now");
727 for (; yybottom <= yytop; yybottom++)
728 {
729 int yybot = *yybottom;
730 YYFPRINTF (stderr, " %d", yybot);
731 }
732 YYFPRINTF (stderr, "\n");
733}
734
735# define YY_STACK_PRINT(Bottom, Top) \
736do { \
737 if (yydebug) \
738 yy_stack_print ((Bottom), (Top)); \
739} while (YYID (0))
740
741
742/*------------------------------------------------.
743| Report that the YYRULE is going to be reduced. |
744`------------------------------------------------*/
745
746]b4_c_function_def([yy_reduce_print], [static void],
747 [[YYSTYPE *yyvsp], [yyvsp]],
748 b4_locations_if([[[YYLTYPE *yylsp], [yylsp]],
749 ])[[int yyrule], [yyrule]]m4_ifset([b4_parse_param], [,
750 b4_parse_param]))[
751{
752 int yynrhs = yyr2[yyrule];
753 int yyi;
754 unsigned long int yylno = yyrline[yyrule];
755 YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
756 yyrule - 1, yylno);
757 /* The symbols being reduced. */
758 for (yyi = 0; yyi < yynrhs; yyi++)
759 {
760 YYFPRINTF (stderr, " $%d = ", yyi + 1);
761 yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
762 &]b4_rhs_value(yynrhs, yyi + 1)[
763 ]b4_locations_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
764 b4_user_args[);
765 YYFPRINTF (stderr, "\n");
766 }
767}
768
769# define YY_REDUCE_PRINT(Rule) \
770do { \
771 if (yydebug) \
772 yy_reduce_print (yyvsp, ]b4_locations_if([yylsp, ])[Rule]b4_user_args[); \
773} while (YYID (0))
774
775/* Nonzero means print parse trace. It is left uninitialized so that
776 multiple parsers can coexist. */
777int yydebug;
778#else /* !YYDEBUG */
779# define YYDPRINTF(Args)
780# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
781# define YY_STACK_PRINT(Bottom, Top)
782# define YY_REDUCE_PRINT(Rule)
783#endif /* !YYDEBUG */
784
785
786/* YYINITDEPTH -- initial size of the parser's stacks. */
787#ifndef YYINITDEPTH
788# define YYINITDEPTH ]b4_stack_depth_init[
789#endif
790
791/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
792 if the built-in stack extension method is used).
793
794 Do not make this value too large; the results are undefined if
795 YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
796 evaluated with infinite-precision integer arithmetic. */
797
798#ifndef YYMAXDEPTH
799# define YYMAXDEPTH ]b4_stack_depth_max[
800#endif
801
802
803
804
805#if YYERROR_VERBOSE
806
807# ifndef yystrlen
808# if defined __GLIBC__ && defined _STRING_H
809# define yystrlen strlen
810# else
811/* Return the length of YYSTR. */
812]b4_c_function_def([yystrlen], [static YYSIZE_T],
813 [[const char *yystr], [yystr]])[
814{
815 YYSIZE_T yylen;
816 for (yylen = 0; yystr[yylen]; yylen++)
817 continue;
818 return yylen;
819}
820# endif
821# endif
822
823# ifndef yystpcpy
824# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
825# define yystpcpy stpcpy
826# else
827/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
828 YYDEST. */
829]b4_c_function_def([yystpcpy], [static char *],
830 [[char *yydest], [yydest]], [[const char *yysrc], [yysrc]])[
831{
832 char *yyd = yydest;
833 const char *yys = yysrc;
834
835 while ((*yyd++ = *yys++) != '\0')
836 continue;
837
838 return yyd - 1;
839}
840# endif
841# endif
842
843# ifndef yytnamerr
844/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
845 quotes and backslashes, so that it's suitable for yyerror. The
846 heuristic is that double-quoting is unnecessary unless the string
847 contains an apostrophe, a comma, or backslash (other than
848 backslash-backslash). YYSTR is taken from yytname. If YYRES is
849 null, do not copy; instead, return the length of what the result
850 would have been. */
851static YYSIZE_T
852yytnamerr (char *yyres, const char *yystr)
853{
854 if (*yystr == '"')
855 {
856 YYSIZE_T yyn = 0;
857 char const *yyp = yystr;
858
859 for (;;)
860 switch (*++yyp)
861 {
862 case '\'':
863 case ',':
864 goto do_not_strip_quotes;
865
866 case '\\':
867 if (*++yyp != '\\')
868 goto do_not_strip_quotes;
869 /* Fall through. */
870 default:
871 if (yyres)
872 yyres[yyn] = *yyp;
873 yyn++;
874 break;
875
876 case '"':
877 if (yyres)
878 yyres[yyn] = '\0';
879 return yyn;
880 }
881 do_not_strip_quotes: ;
882 }
883
884 if (! yyres)
885 return yystrlen (yystr);
886
887 return yystpcpy (yyres, yystr) - yyres;
888}
889# endif
890
891/* Copy into YYRESULT an error message about the unexpected token
892 YYCHAR while in state YYSTATE. Return the number of bytes copied,
893 including the terminating null byte. If YYRESULT is null, do not
894 copy anything; just return the number of bytes that would be
895 copied. As a special case, return 0 if an ordinary "syntax error"
896 message will do. Return YYSIZE_MAXIMUM if overflow occurs during
897 size calculation. */
898static YYSIZE_T
899yysyntax_error (char *yyresult, int yystate, int yychar)
900{
901 int yyn = yypact[yystate];
902
903 if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
904 return 0;
905 else
906 {
907 int yytype = YYTRANSLATE (yychar);
908 YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
909 YYSIZE_T yysize = yysize0;
910 YYSIZE_T yysize1;
911 int yysize_overflow = 0;
912 enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
913 char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
914 int yyx;
915
916# if 0
917 /* This is so xgettext sees the translatable formats that are
918 constructed on the fly. */
919 YY_("syntax error, unexpected %s");
920 YY_("syntax error, unexpected %s, expecting %s");
921 YY_("syntax error, unexpected %s, expecting %s or %s");
922 YY_("syntax error, unexpected %s, expecting %s or %s or %s");
923 YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
924# endif
925 char *yyfmt;
926 char const *yyf;
927 static char const yyunexpected[] = "syntax error, unexpected %s";
928 static char const yyexpecting[] = ", expecting %s";
929 static char const yyor[] = " or %s";
930 char yyformat[sizeof yyunexpected
931 + sizeof yyexpecting - 1
932 + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
933 * (sizeof yyor - 1))];
934 char const *yyprefix = yyexpecting;
935
936 /* Start YYX at -YYN if negative to avoid negative indexes in
937 YYCHECK. */
938 int yyxbegin = yyn < 0 ? -yyn : 0;
939
940 /* Stay within bounds of both yycheck and yytname. */
941 int yychecklim = YYLAST - yyn + 1;
942 int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
943 int yycount = 1;
944
945 yyarg[0] = yytname[yytype];
946 yyfmt = yystpcpy (yyformat, yyunexpected);
947
948 for (yyx = yyxbegin; yyx < yyxend; ++yyx)
949 if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
950 {
951 if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
952 {
953 yycount = 1;
954 yysize = yysize0;
955 yyformat[sizeof yyunexpected - 1] = '\0';
956 break;
957 }
958 yyarg[yycount++] = yytname[yyx];
959 yysize1 = yysize + yytnamerr (0, yytname[yyx]);
960 yysize_overflow |= (yysize1 < yysize);
961 yysize = yysize1;
962 yyfmt = yystpcpy (yyfmt, yyprefix);
963 yyprefix = yyor;
964 }
965
966 yyf = YY_(yyformat);
967 yysize1 = yysize + yystrlen (yyf);
968 yysize_overflow |= (yysize1 < yysize);
969 yysize = yysize1;
970
971 if (yysize_overflow)
972 return YYSIZE_MAXIMUM;
973
974 if (yyresult)
975 {
976 /* Avoid sprintf, as that infringes on the user's name space.
977 Don't have undefined behavior even if the translation
978 produced a string with the wrong number of "%s"s. */
979 char *yyp = yyresult;
980 int yyi = 0;
981 while ((*yyp = *yyf) != '\0')
982 {
983 if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
984 {
985 yyp += yytnamerr (yyp, yyarg[yyi++]);
986 yyf += 2;
987 }
988 else
989 {
990 yyp++;
991 yyf++;
992 }
993 }
994 }
995 return yysize;
996 }
997}
998#endif /* YYERROR_VERBOSE */
999
1000
1001
1002]b4_yydestruct_generate([b4_c_function_def])[
1003
1004]b4_push_if([],
1005[[/* Prevent warnings from -Wmissing-prototypes. */
1006#ifdef YYPARSE_PARAM
1007]b4_c_function_decl([yyparse], [int],
1008 [[void *YYPARSE_PARAM], [YYPARSE_PARAM]])[
1009#else /* ! YYPARSE_PARAM */
1010]b4_c_function_decl([yyparse], [int], b4_parse_param)[
1011#endif /* ! YYPARSE_PARAM */]])
1012
1013m4_divert_push([KILL])# ======================== M4 code.
1014# b4_declare_scanner_communication_variables
1015# ------------------------------------------
1016# Declare the variables that are global, or local to YYPARSE if
1017# pure-parser.
1018m4_define([b4_declare_scanner_communication_variables],
1019[[/* The lookahead symbol. */
1020int yychar;
1021
1022/* The semantic value of the lookahead symbol. */
1023YYSTYPE yylval;
1024]b4_locations_if([[
1025/* Location data for the lookahead symbol. */
1026YYLTYPE yylloc;
1027]])b4_pure_if([], [[
1028/* Number of syntax errors so far. */
1029int yynerrs;
1030]])])
1031
1032# b4_declare_parser_state_variables
1033# ---------------------------------
1034# Declare all the variables that are needed to maintain the parser state
1035# between calls to yypush_parse.
1036m4_define([b4_declare_parser_state_variables],
1037[b4_pure_if([[ /* Number of syntax errors so far. */
1038 int yynerrs;
1039]])[
1040 int yystate;
1041 /* Number of tokens to shift before error messages enabled. */
1042 int yyerrstatus;
1043
1044 /* The stacks and their tools:
1045 `yyss': related to states.
1046 `yyvs': related to semantic values.]b4_locations_if([[
1047 `yyls': related to locations.]])[
1048
1049 Refer to the stacks thru separate pointers, to allow yyoverflow
1050 to reallocate them elsewhere. */
1051
1052 /* The state stack. */
1053 yytype_int16 yyssa[YYINITDEPTH];
1054 yytype_int16 *yyss;
1055 yytype_int16 *yyssp;
1056
1057 /* The semantic value stack. */
1058 YYSTYPE yyvsa[YYINITDEPTH];
1059 YYSTYPE *yyvs;
1060 YYSTYPE *yyvsp;
1061]b4_locations_if([[
1062 /* The location stack. */
1063 YYLTYPE yylsa[YYINITDEPTH];
1064 YYLTYPE *yyls;
1065 YYLTYPE *yylsp;
1066
1067 /* The locations where the error started and ended. */
1068 YYLTYPE yyerror_range[2];
1069]])[
1070 YYSIZE_T yystacksize;
1071]])
1072
1073m4_divert_pop([KILL])dnl# ====================== End of M4 code.
1074
1075b4_pure_if([], [b4_declare_scanner_communication_variables])
1076
1077b4_push_if(
1078[[struct yypstate
1079 {
1080 ]b4_declare_parser_state_variables[
1081 /* Used to determine if this is the first time this instance has
1082 been used. */
1083 int yynew;
1084 };]b4_pure_if([], [[
1085
1086static char yypstate_allocated = 0;]])b4_pull_if([
1087
1088b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
1089{
1090 return yypull_parse (0]m4_ifset([b4_parse_param],
1091 [[, ]b4_c_args(b4_parse_param)])[);
1092}
1093
1094]b4_c_function_def([[yypull_parse]], [[int]],
1095 [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
1096 b4_parse_param]))[
1097{
1098 int yystatus;
1099 yypstate *yyps_local;]b4_pure_if([[
1100 int yychar;
1101 YYSTYPE yylval;]b4_locations_if([[
1102 YYLTYPE yylloc;]])])[
1103 if (yyps == 0)
1104 {
1105 yyps_local = yypstate_new ();
1106 if (!yyps_local)
1107 {]b4_pure_if([[
1108 yyerror (]b4_yyerror_args[YY_("memory exhausted"));]], [[
1109 if (!yypstate_allocated)
1110 yyerror (]b4_yyerror_args[YY_("memory exhausted"));]])[
1111 return 2;
1112 }
1113 }
1114 else
1115 yyps_local = yyps;
1116 do {
1117 yychar = YYLEX;
1118 yystatus =
1119 yypush_parse (yyps_local]b4_pure_if([[, yychar, &yylval]b4_locations_if([[, &yylloc]])])m4_ifset([b4_parse_param], [, b4_c_args(b4_parse_param)])[);
1120 } while (yystatus == YYPUSH_MORE);
1121 if (yyps == 0)
1122 yypstate_delete (yyps_local);
1123 return yystatus;
1124}]])[
1125
1126/* Initialize the parser data structure. */
1127]b4_c_function_def([[yypstate_new]], [[yypstate *]])[
1128{
1129 yypstate *yyps;]b4_pure_if([], [[
1130 if (yypstate_allocated)
1131 return 0;]])[
1132 yyps = (yypstate *) malloc (sizeof *yyps);
1133 if (!yyps)
1134 return 0;
1135 yyps->yynew = 1;]b4_pure_if([], [[
1136 yypstate_allocated = 1;]])[
1137 return yyps;
1138}
1139
1140]b4_c_function_def([[yypstate_delete]], [[void]],
1141 [[[yypstate *yyps]], [[yyps]]])[
1142{
1143#ifndef yyoverflow
1144 /* If the stack was reallocated but the parse did not complete, then the
1145 stack still needs to be freed. */
1146 if (!yyps->yynew && yyps->yyss != yyps->yyssa)
1147 YYSTACK_FREE (yyps->yyss);
1148#endif
1149 free (yyps);]b4_pure_if([], [[
1150 yypstate_allocated = 0;]])[
1151}
1152
1153]b4_pure_if([[#define ]b4_prefix[nerrs yyps->]b4_prefix[nerrs
1154]])[#define yystate yyps->yystate
1155#define yyerrstatus yyps->yyerrstatus
1156#define yyssa yyps->yyssa
1157#define yyss yyps->yyss
1158#define yyssp yyps->yyssp
1159#define yyvsa yyps->yyvsa
1160#define yyvs yyps->yyvs
1161#define yyvsp yyps->yyvsp
1162]b4_locations_if([[#define yylsa yyps->yylsa
1163#define yyls yyps->yyls
1164#define yylsp yyps->yylsp
1165#define yyerror_range yyps->yyerror_range
1166]])[#define yystacksize yyps->yystacksize
1167]])[
1168/*-------------------------.
1169| yyparse or yypush_parse. |
1170`-------------------------*/
1171]b4_push_if([
1172b4_c_function_def([[yypush_parse]], [[int]],
1173 [[[yypstate *yyps]], [[yyps]]]b4_pure_if([,
1174 [[[int yypushed_char]], [[yypushed_char]]],
1175 [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
1176 [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
1177 b4_parse_param]))], [
1178#ifdef YYPARSE_PARAM
1179b4_c_function_def([yyparse], [int], [[void *YYPARSE_PARAM], [YYPARSE_PARAM]])
1180#else /* ! YYPARSE_PARAM */
1181b4_c_function_def([yyparse], [int], b4_parse_param)
1182#endif])[
1183{
1184]b4_pure_if([b4_declare_scanner_communication_variables])
1185b4_push_if([b4_pure_if([], [[ int yypushed_char = yychar;
1186 YYSTYPE yypushed_val = yylval;
1187 ]b4_locations_if([[YYLTYPE yypushed_loc = yylloc;
1188]])])],
1189 [b4_declare_parser_state_variables])[
1190 int yyn;
1191 int yyresult;
1192 /* Lookahead token as an internal (translated) token number. */
1193 int yytoken;
1194 /* The variables used to return semantic value and location from the
1195 action routines. */
1196 YYSTYPE yyval;]b4_locations_if([[
1197 YYLTYPE yyloc;]])[
1198
1199#if YYERROR_VERBOSE
1200 /* Buffer for error messages, and its allocated size. */
1201 char yymsgbuf[128];
1202 char *yymsg = yymsgbuf;
1203 YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
1204#endif
1205
1206#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)]b4_locations_if([, yylsp -= (N)])[)
1207
1208 /* The number of symbols on the RHS of the reduced rule.
1209 Keep to zero when no symbol should be popped. */
1210 int yylen = 0;]b4_push_if([[
1211
1212 if (!yyps->yynew)
1213 {
1214 yyn = yypact[yystate];
1215 goto yyread_pushed_token;
1216 }]])[
1217
1218 yytoken = 0;
1219 yyss = yyssa;
1220 yyvs = yyvsa;]b4_locations_if([[
1221 yyls = yylsa;]])[
1222 yystacksize = YYINITDEPTH;
1223
1224 YYDPRINTF ((stderr, "Starting parse\n"));
1225
1226 yystate = 0;
1227 yyerrstatus = 0;
1228 yynerrs = 0;
1229 yychar = YYEMPTY; /* Cause a token to be read. */
1230
1231 /* Initialize stack pointers.
1232 Waste one element of value and location stack
1233 so that they stay on the same level as the state stack.
1234 The wasted elements are never initialized. */
1235 yyssp = yyss;
1236 yyvsp = yyvs;]b4_locations_if([[
1237 yylsp = yyls;
1238
1239#if YYLTYPE_IS_TRIVIAL
1240 /* Initialize the default location before parsing starts. */
1241 yylloc.first_line = yylloc.last_line = ]b4_location_initial_line[;
1242 yylloc.first_column = yylloc.last_column = ]b4_location_initial_column[;
1243#endif]])
1244m4_ifdef([b4_initial_action],[
1245m4_pushdef([b4_at_dollar], [m4_define([b4_at_dollar_used])yylloc])dnl
1246m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl
1247/* User initialization code. */
1248b4_user_initial_action
1249m4_popdef([b4_dollar_dollar])dnl
1250m4_popdef([b4_at_dollar])])dnl
1251m4_ifdef([b4_dollar_dollar_used],[[ yyvsp[0] = yylval;
1252]])dnl
1253m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc;
1254]])[
1255 goto yysetstate;
1256
1257/*------------------------------------------------------------.
1258| yynewstate -- Push a new state, which is found in yystate. |
1259`------------------------------------------------------------*/
1260 yynewstate:
1261 /* In all cases, when you get here, the value and location stacks
1262 have just been pushed. So pushing a state here evens the stacks. */
1263 yyssp++;
1264
1265 yysetstate:
1266 *yyssp = yystate;
1267
1268 if (yyss + yystacksize - 1 <= yyssp)
1269 {
1270 /* Get the current used size of the three stacks, in elements. */
1271 YYSIZE_T yysize = yyssp - yyss + 1;
1272
1273#ifdef yyoverflow
1274 {
1275 /* Give user a chance to reallocate the stack. Use copies of
1276 these so that the &'s don't force the real ones into
1277 memory. */
1278 YYSTYPE *yyvs1 = yyvs;
1279 yytype_int16 *yyss1 = yyss;]b4_locations_if([
1280 YYLTYPE *yyls1 = yyls;])[
1281
1282 /* Each stack pointer address is followed by the size of the
1283 data in use in that stack, in bytes. This used to be a
1284 conditional around just the two extra args, but that might
1285 be undefined if yyoverflow is a macro. */
1286 yyoverflow (YY_("memory exhausted"),
1287 &yyss1, yysize * sizeof (*yyssp),
1288 &yyvs1, yysize * sizeof (*yyvsp),]b4_locations_if([
1289 &yyls1, yysize * sizeof (*yylsp),])[
1290 &yystacksize);
1291]b4_locations_if([
1292 yyls = yyls1;])[
1293 yyss = yyss1;
1294 yyvs = yyvs1;
1295 }
1296#else /* no yyoverflow */
1297# ifndef YYSTACK_RELOCATE
1298 goto yyexhaustedlab;
1299# else
1300 /* Extend the stack our own way. */
1301 if (YYMAXDEPTH <= yystacksize)
1302 goto yyexhaustedlab;
1303 yystacksize *= 2;
1304 if (YYMAXDEPTH < yystacksize)
1305 yystacksize = YYMAXDEPTH;
1306
1307 {
1308 yytype_int16 *yyss1 = yyss;
1309 union yyalloc *yyptr =
1310 (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
1311 if (! yyptr)
1312 goto yyexhaustedlab;
1313 YYSTACK_RELOCATE (yyss_alloc, yyss);
1314 YYSTACK_RELOCATE (yyvs_alloc, yyvs);]b4_locations_if([
1315 YYSTACK_RELOCATE (yyls_alloc, yyls);])[
1316# undef YYSTACK_RELOCATE
1317 if (yyss1 != yyssa)
1318 YYSTACK_FREE (yyss1);
1319 }
1320# endif
1321#endif /* no yyoverflow */
1322
1323 yyssp = yyss + yysize - 1;
1324 yyvsp = yyvs + yysize - 1;]b4_locations_if([
1325 yylsp = yyls + yysize - 1;])[
1326
1327 YYDPRINTF ((stderr, "Stack size increased to %lu\n",
1328 (unsigned long int) yystacksize));
1329
1330 if (yyss + yystacksize - 1 <= yyssp)
1331 YYABORT;
1332 }
1333
1334 YYDPRINTF ((stderr, "Entering state %d\n", yystate));
1335
1336 if (yystate == YYFINAL)
1337 YYACCEPT;
1338
1339 goto yybackup;
1340
1341/*-----------.
1342| yybackup. |
1343`-----------*/
1344yybackup:
1345
1346 /* Do appropriate processing given the current state. Read a
1347 lookahead token if we need one and don't already have one. */
1348
1349 /* First try to decide what to do without reference to lookahead token. */
1350 yyn = yypact[yystate];
1351 if (yyn == YYPACT_NINF)
1352 goto yydefault;
1353
1354 /* Not known => get a lookahead token if don't already have one. */
1355
1356 /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
1357 if (yychar == YYEMPTY)
1358 {]b4_push_if([[
1359 if (!yyps->yynew)
1360 {]b4_use_push_for_pull_if([], [[
1361 YYDPRINTF ((stderr, "Return for a new token:\n"));]])[
1362 yyresult = YYPUSH_MORE;
1363 goto yypushreturn;
1364 }
1365 yyps->yynew = 0;]b4_pure_if([], [[
1366 /* Restoring the pushed token is only necessary for the first
1367 yypush_parse invocation since subsequent invocations don't overwrite
1368 it before jumping to yyread_pushed_token. */
1369 yychar = yypushed_char;
1370 yylval = yypushed_val;]b4_locations_if([[
1371 yylloc = yypushed_loc;]])])[
1372yyread_pushed_token:]])[
1373 YYDPRINTF ((stderr, "Reading a token: "));]b4_push_if([b4_pure_if([[
1374 yychar = yypushed_char;
1375 if (yypushed_val)
1376 yylval = *yypushed_val;]b4_locations_if([[
1377 if (yypushed_loc)
1378 yylloc = *yypushed_loc;]])])], [[
1379 yychar = YYLEX;]])[
1380 }
1381
1382 if (yychar <= YYEOF)
1383 {
1384 yychar = yytoken = YYEOF;
1385 YYDPRINTF ((stderr, "Now at end of input.\n"));
1386 }
1387 else
1388 {
1389 yytoken = YYTRANSLATE (yychar);
1390 YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
1391 }
1392
1393 /* If the proper action on seeing token YYTOKEN is to reduce or to
1394 detect an error, take that action. */
1395 yyn += yytoken;
1396 if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
1397 goto yydefault;
1398 yyn = yytable[yyn];
1399 if (yyn <= 0)
1400 {
1401 if (yyn == 0 || yyn == YYTABLE_NINF)
1402 goto yyerrlab;
1403 yyn = -yyn;
1404 goto yyreduce;
1405 }
1406
1407 /* Count tokens shifted since error; after three, turn off error
1408 status. */
1409 if (yyerrstatus)
1410 yyerrstatus--;
1411
1412 /* Shift the lookahead token. */
1413 YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
1414
1415 /* Discard the shifted token. */
1416 yychar = YYEMPTY;
1417
1418 yystate = yyn;
1419 *++yyvsp = yylval;
1420]b4_locations_if([ *++yylsp = yylloc;])[
1421 goto yynewstate;
1422
1423
1424/*-----------------------------------------------------------.
1425| yydefault -- do the default action for the current state. |
1426`-----------------------------------------------------------*/
1427yydefault:
1428 yyn = yydefact[yystate];
1429 if (yyn == 0)
1430 goto yyerrlab;
1431 goto yyreduce;
1432
1433
1434/*-----------------------------.
1435| yyreduce -- Do a reduction. |
1436`-----------------------------*/
1437yyreduce:
1438 /* yyn is the number of a rule to reduce with. */
1439 yylen = yyr2[yyn];
1440
1441 /* If YYLEN is nonzero, implement the default value of the action:
1442 `$$ = $1'.
1443
1444 Otherwise, the following line sets YYVAL to garbage.
1445 This behavior is undocumented and Bison
1446 users should not rely upon it. Assigning to YYVAL
1447 unconditionally makes the parser a bit smaller, and it avoids a
1448 GCC warning that YYVAL may be used uninitialized. */
1449 yyval = yyvsp[1-yylen];
1450
1451]b4_locations_if(
1452[[ /* Default location. */
1453 YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);]])[
1454 YY_REDUCE_PRINT (yyn);
1455 switch (yyn)
1456 {
1457 ]b4_user_actions[
1458 default: break;
1459 }
1460 YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
1461
1462 YYPOPSTACK (yylen);
1463 yylen = 0;
1464 YY_STACK_PRINT (yyss, yyssp);
1465
1466 *++yyvsp = yyval;]b4_locations_if([
1467 *++yylsp = yyloc;])[
1468
1469 /* Now `shift' the result of the reduction. Determine what state
1470 that goes to, based on the state we popped back to and the rule
1471 number reduced by. */
1472
1473 yyn = yyr1[yyn];
1474
1475 yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
1476 if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
1477 yystate = yytable[yystate];
1478 else
1479 yystate = yydefgoto[yyn - YYNTOKENS];
1480
1481 goto yynewstate;
1482
1483
1484/*------------------------------------.
1485| yyerrlab -- here on detecting error |
1486`------------------------------------*/
1487yyerrlab:
1488 /* If not already recovering from an error, report this error. */
1489 if (!yyerrstatus)
1490 {
1491 ++yynerrs;
1492#if ! YYERROR_VERBOSE
1493 yyerror (]b4_yyerror_args[YY_("syntax error"));
1494#else
1495 {
1496 YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
1497 if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
1498 {
1499 YYSIZE_T yyalloc = 2 * yysize;
1500 if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
1501 yyalloc = YYSTACK_ALLOC_MAXIMUM;
1502 if (yymsg != yymsgbuf)
1503 YYSTACK_FREE (yymsg);
1504 yymsg = (char *) YYSTACK_ALLOC (yyalloc);
1505 if (yymsg)
1506 yymsg_alloc = yyalloc;
1507 else
1508 {
1509 yymsg = yymsgbuf;
1510 yymsg_alloc = sizeof yymsgbuf;
1511 }
1512 }
1513
1514 if (0 < yysize && yysize <= yymsg_alloc)
1515 {
1516 (void) yysyntax_error (yymsg, yystate, yychar);
1517 yyerror (]b4_yyerror_args[yymsg);
1518 }
1519 else
1520 {
1521 yyerror (]b4_yyerror_args[YY_("syntax error"));
1522 if (yysize != 0)
1523 goto yyexhaustedlab;
1524 }
1525 }
1526#endif
1527 }
1528
1529]b4_locations_if([[ yyerror_range[0] = yylloc;]])[
1530
1531 if (yyerrstatus == 3)
1532 {
1533 /* If just tried and failed to reuse lookahead token after an
1534 error, discard it. */
1535
1536 if (yychar <= YYEOF)
1537 {
1538 /* Return failure if at end of input. */
1539 if (yychar == YYEOF)
1540 YYABORT;
1541 }
1542 else
1543 {
1544 yydestruct ("Error: discarding",
1545 yytoken, &yylval]b4_locations_if([, &yylloc])[]b4_user_args[);
1546 yychar = YYEMPTY;
1547 }
1548 }
1549
1550 /* Else will try to reuse lookahead token after shifting the error
1551 token. */
1552 goto yyerrlab1;
1553
1554
1555/*---------------------------------------------------.
1556| yyerrorlab -- error raised explicitly by YYERROR. |
1557`---------------------------------------------------*/
1558yyerrorlab:
1559
1560 /* Pacify compilers like GCC when the user code never invokes
1561 YYERROR and the label yyerrorlab therefore never appears in user
1562 code. */
1563 if (/*CONSTCOND*/ 0)
1564 goto yyerrorlab;
1565
1566]b4_locations_if([[ yyerror_range[0] = yylsp[1-yylen];
1567]])[ /* Do not reclaim the symbols of the rule which action triggered
1568 this YYERROR. */
1569 YYPOPSTACK (yylen);
1570 yylen = 0;
1571 YY_STACK_PRINT (yyss, yyssp);
1572 yystate = *yyssp;
1573 goto yyerrlab1;
1574
1575
1576/*-------------------------------------------------------------.
1577| yyerrlab1 -- common code for both syntax error and YYERROR. |
1578`-------------------------------------------------------------*/
1579yyerrlab1:
1580 yyerrstatus = 3; /* Each real token shifted decrements this. */
1581
1582 for (;;)
1583 {
1584 yyn = yypact[yystate];
1585 if (yyn != YYPACT_NINF)
1586 {
1587 yyn += YYTERROR;
1588 if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
1589 {
1590 yyn = yytable[yyn];
1591 if (0 < yyn)
1592 break;
1593 }
1594 }
1595
1596 /* Pop the current state because it cannot handle the error token. */
1597 if (yyssp == yyss)
1598 YYABORT;
1599
1600]b4_locations_if([[ yyerror_range[0] = *yylsp;]])[
1601 yydestruct ("Error: popping",
1602 yystos[yystate], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
1603 YYPOPSTACK (1);
1604 yystate = *yyssp;
1605 YY_STACK_PRINT (yyss, yyssp);
1606 }
1607
1608 *++yyvsp = yylval;
1609]b4_locations_if([[
1610 yyerror_range[1] = yylloc;
1611 /* Using YYLLOC is tempting, but would change the location of
1612 the lookahead. YYLOC is available though. */
1613 YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
1614 *++yylsp = yyloc;]])[
1615
1616 /* Shift the error token. */
1617 YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
1618
1619 yystate = yyn;
1620 goto yynewstate;
1621
1622
1623/*-------------------------------------.
1624| yyacceptlab -- YYACCEPT comes here. |
1625`-------------------------------------*/
1626yyacceptlab:
1627 yyresult = 0;
1628 goto yyreturn;
1629
1630/*-----------------------------------.
1631| yyabortlab -- YYABORT comes here. |
1632`-----------------------------------*/
1633yyabortlab:
1634 yyresult = 1;
1635 goto yyreturn;
1636
1637#if !defined(yyoverflow) || YYERROR_VERBOSE
1638/*-------------------------------------------------.
1639| yyexhaustedlab -- memory exhaustion comes here. |
1640`-------------------------------------------------*/
1641yyexhaustedlab:
1642 yyerror (]b4_yyerror_args[YY_("memory exhausted"));
1643 yyresult = 2;
1644 /* Fall through. */
1645#endif
1646
1647yyreturn:
1648 if (yychar != YYEMPTY)
1649 yydestruct ("Cleanup: discarding lookahead",
1650 yytoken, &yylval]b4_locations_if([, &yylloc])[]b4_user_args[);
1651 /* Do not reclaim the symbols of the rule which action triggered
1652 this YYABORT or YYACCEPT. */
1653 YYPOPSTACK (yylen);
1654 YY_STACK_PRINT (yyss, yyssp);
1655 while (yyssp != yyss)
1656 {
1657 yydestruct ("Cleanup: popping",
1658 yystos[*yyssp], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
1659 YYPOPSTACK (1);
1660 }
1661#ifndef yyoverflow
1662 if (yyss != yyssa)
1663 YYSTACK_FREE (yyss);
1664#endif
1665]b4_push_if([[ yyps->yynew = 1;
1666
1667yypushreturn:
1668]])[#if YYERROR_VERBOSE
1669 if (yymsg != yymsgbuf)
1670 YYSTACK_FREE (yymsg);
1671#endif
1672 /* Make sure YYID is used. */
1673 return YYID (yyresult);
1674}
1675
1676
1677]b4_epilogue
1678b4_defines_if(
1679[@output(b4_spec_defines_file@)
1680b4_copyright([Skeleton interface for Bison's Yacc-like parsers in C],dnl '
1681 [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])
1682
1683b4_percent_code_get([[requires]])[]dnl
1684
1685b4_token_enums_defines(b4_tokens)
1686
1687[#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
1688]m4_ifdef([b4_stype],
1689[[typedef union ]b4_union_name[
1690{
1691]b4_user_stype[
1692} YYSTYPE;
1693# define YYSTYPE_IS_TRIVIAL 1]],
1694[m4_if(b4_tag_seen_flag, 0,
1695[[typedef int YYSTYPE;
1696# define YYSTYPE_IS_TRIVIAL 1]])])[
1697# define yystype YYSTYPE /* obsolescent; will be withdrawn */
1698# define YYSTYPE_IS_DECLARED 1
1699#endif
1700
1701]b4_pure_if([], [[extern YYSTYPE ]b4_prefix[lval;]])
1702
1703b4_locations_if(
1704[#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
1705typedef struct YYLTYPE
1706{
1707 int first_line;
1708 int first_column;
1709 int last_line;
1710 int last_column;
1711} YYLTYPE;
1712# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
1713# define YYLTYPE_IS_DECLARED 1
1714# define YYLTYPE_IS_TRIVIAL 1
1715#endif
1716
1717]b4_pure_if([], [[extern YYLTYPE ]b4_prefix[lloc;]])
1718)dnl b4_locations_if
1719b4_push_if([[
1720#ifndef YYPUSH_DECLS
1721# define YYPUSH_DECLS
1722struct ]b4_prefix[pstate;
1723typedef struct ]b4_prefix[pstate ]b4_prefix[pstate;
1724enum { YYPUSH_MORE = 4 };
1725]b4_pull_if([b4_c_function_decl([b4_prefix[parse]], [[int]], b4_parse_param)
1726])b4_c_function_decl([b4_prefix[push_parse]], [[int]],
1727 [[b4_prefix[pstate *yyps]], [[yyps]]]b4_pure_if([,
1728 [[[int yypushed_char]], [[yypushed_char]]],
1729 [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
1730 [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
1731 b4_parse_param]))
1732b4_pull_if([b4_c_function_decl([b4_prefix[pull_parse]], [[int]],
1733 [[b4_prefix[pstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
1734 b4_parse_param]))])
1735b4_c_function_decl([b4_prefix[pstate_new]], [b4_prefix[pstate *]],
1736 [[[void]], []])
1737b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
1738 [[b4_prefix[pstate *yyps]], [[yyps]]])[
1739#endif
1740]])
1741b4_percent_code_get([[provides]])[]dnl
1742])dnl b4_defines_if
1743m4_divert_pop(0)
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