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- m4_divert(-1) -*- C -*-
-
- # Yacc compatible skeleton for Bison
-
- # Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005
- # Free Software Foundation, Inc.
-
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation; either version 2 of the License, or
- # (at your option) any later version.
-
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
-
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- # 02110-1301 USA
-
-
-
- ## ---------------- ##
- ## Default values. ##
- ## ---------------- ##
-
- # Stack parameters.
- m4_define_default([b4_stack_depth_max], [10000])
- m4_define_default([b4_stack_depth_init], [200])
-
-
- ## ------------------------ ##
- ## Pure/impure interfaces. ##
- ## ------------------------ ##
-
-
- # b4_pure_if(IF-TRUE, IF-FALSE)
- # -----------------------------
- # Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise.
- m4_define([b4_Pure_if],
- [b4_pure_if([m4_ifset([b4_parse_param],
- [$1], [$2])],
- [$2])])
-
-
- # b4_yyerror_args
- # ---------------
- # Arguments passed to yyerror: user args plus yylloc.
- m4_define([b4_yyerror_args],
- [b4_Pure_if([b4_location_if([&yylloc, ])])dnl
- m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
-
-
- # b4_lex_param
- # ------------
- # Accumulate in b4_lex_param all the yylex arguments.
- # b4_lex_param arrives quoted twice, but we want to keep only one level.
- m4_define([b4_lex_param],
- m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl
- b4_location_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl
- m4_ifdef([b4_lex_param], b4_lex_param)))
-
-
-
- ## ------------ ##
- ## Data Types. ##
- ## ------------ ##
-
- # b4_int_type(MIN, MAX)
- # ---------------------
- # Return the smallest int type able to handle numbers ranging from
- # MIN to MAX (included). We overwrite the version from c.m4 which relies
- # on "signed char" which is not portable to old K&R compilers.
- m4_define([b4_int_type],
- [m4_if(b4_ints_in($@, [0], [255]), [1], [unsigned char],
- b4_ints_in($@, [-128], [127]), [1], [yysigned_char],
-
- b4_ints_in($@, [0], [65535]), [1], [unsigned short int],
- b4_ints_in($@, [-32768], [32767]), [1], [short int],
-
- m4_eval([0 <= $1]), [1], [unsigned int],
-
- [int])])
-
-
- ## ----------------- ##
- ## Semantic Values. ##
- ## ----------------- ##
-
-
- # b4_lhs_value([TYPE])
- # --------------------
- # Expansion of $<TYPE>$.
- m4_define([b4_lhs_value],
- [(yyval[]m4_ifval([$1], [.$1]))])
-
-
- # b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
- # --------------------------------------
- # Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
- # symbols on RHS.
- m4_define([b4_rhs_value],
- [(yyvsp@{m4_eval([$2 - $1])@}m4_ifval([$3], [.$3]))])
-
-
-
- ## ----------- ##
- ## Locations. ##
- ## ----------- ##
-
- # b4_lhs_location()
- # -----------------
- # Expansion of @$.
- m4_define([b4_lhs_location],
- [(yyloc)])
-
-
- # b4_rhs_location(RULE-LENGTH, NUM)
- # ---------------------------------
- # Expansion of @NUM, where the current rule has RULE-LENGTH symbols
- # on RHS.
- m4_define([b4_rhs_location],
- [(yylsp@{m4_eval([$2 - $1])@})])
-
-
-
- ## --------------------------------------------------------- ##
- ## Defining symbol actions, e.g., printers and destructors. ##
- ## --------------------------------------------------------- ##
-
- # We do want M4 expansion after # for CPP macros.
- m4_changecom()
- m4_divert(0)dnl
- @output @output_parser_name@
- b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
- [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005])[
-
- /* As a special exception, when this file is copied by Bison into a
- Bison output file, you may use that output file without restriction.
- This special exception was added by the Free Software Foundation
- in version 1.24 of Bison. */
-
- /* Written by Richard Stallman by simplifying the original so called
- ``semantic'' parser. */
-
- /* All symbols defined below should begin with yy or YY, to avoid
- infringing on user name space. This should be done even for local
- variables, as they might otherwise be expanded by user macros.
- There are some unavoidable exceptions within include files to
- define necessary library symbols; they are noted "INFRINGES ON
- USER NAME SPACE" below. */
-
- ]b4_identification
- m4_if(b4_prefix[], [yy], [],
- [/* Substitute the variable and function names. */
- #define yyparse b4_prefix[]parse
- #define yylex b4_prefix[]lex
- #define yyerror b4_prefix[]error
- #define yylval b4_prefix[]lval
- #define yychar b4_prefix[]char
- #define yydebug b4_prefix[]debug
- #define yynerrs b4_prefix[]nerrs
- b4_location_if([#define yylloc b4_prefix[]lloc])])[
-
- ]b4_token_enums_defines(b4_tokens)[
-
- /* Copy the first part of user declarations. */
- ]b4_pre_prologue[
-
- /* Enabling traces. */
- #ifndef YYDEBUG
- # define YYDEBUG ]b4_debug[
- #endif
-
- /* Enabling verbose error messages. */
- #ifdef YYERROR_VERBOSE
- # undef YYERROR_VERBOSE
- # define YYERROR_VERBOSE 1
- #else
- # define YYERROR_VERBOSE ]b4_error_verbose[
- #endif
-
- /* Enabling the token table. */
- #ifndef YYTOKEN_TABLE
- # define YYTOKEN_TABLE ]b4_token_table[
- #endif
-
- #if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
- ]m4_ifdef([b4_stype],
- [b4_syncline([b4_stype_line], [b4_file_name])
- typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])b4_stype YYSTYPE;
- /* Line __line__ of yacc.c. */
- b4_syncline([@oline@], [@ofile@])],
- [typedef int YYSTYPE;])[
- # define yystype YYSTYPE /* obsolescent; will be withdrawn */
- # define YYSTYPE_IS_DECLARED 1
- # define YYSTYPE_IS_TRIVIAL 1
- #endif
-
- ]b4_location_if([#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED)
- typedef struct YYLTYPE
- {
- int first_line;
- int first_column;
- int last_line;
- int last_column;
- } YYLTYPE;
- # define yyltype YYLTYPE /* obsolescent; will be withdrawn */
- # define YYLTYPE_IS_DECLARED 1
- # define YYLTYPE_IS_TRIVIAL 1
- #endif
- ])[
-
- /* Copy the second part of user declarations. */
- ]b4_post_prologue
-
- /* Line __line__ of yacc.c. */
- b4_syncline([@oline@], [@ofile@])[
-
- #if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
- # define YYSIZE_T __SIZE_TYPE__
- #endif
- #if ! defined (YYSIZE_T) && defined (size_t)
- # define YYSIZE_T size_t
- #endif
- #if ! defined (YYSIZE_T) && (defined (__STDC__) || defined (__cplusplus))
- # include <stddef.h> /* INFRINGES ON USER NAME SPACE */
- # define YYSIZE_T size_t
- #endif
- #if ! defined (YYSIZE_T)
- # define YYSIZE_T unsigned int
- #endif
-
- #ifndef YY_
- # if YYENABLE_NLS
- # if ENABLE_NLS
- # include <libintl.h> /* INFRINGES ON USER NAME SPACE */
- # define YY_(msgid) dgettext ("bison-runtime", msgid)
- # endif
- # endif
- # ifndef YY_
- # define YY_(msgid) msgid
- # endif
- #endif
-
- #if ! defined (yyoverflow) || YYERROR_VERBOSE
-
- /* The parser invokes alloca or malloc; define the necessary symbols. */
-
- # ifdef YYSTACK_USE_ALLOCA
- # if YYSTACK_USE_ALLOCA
- # ifdef __GNUC__
- # define YYSTACK_ALLOC __builtin_alloca
- # else
- # define YYSTACK_ALLOC alloca
- # if defined (__STDC__) || defined (__cplusplus)
- # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
- # define YYINCLUDED_STDLIB_H
- # endif
- # endif
- # endif
- # endif
-
- # ifdef YYSTACK_ALLOC
- /* Pacify GCC's `empty if-body' warning. */
- # define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
- # ifndef YYSTACK_ALLOC_MAXIMUM
- /* The OS might guarantee only one guard page at the bottom of the stack,
- and a page size can be as small as 4096 bytes. So we cannot safely
- invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
- to allow for a few compiler-allocated temporary stack slots. */
- # define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2005 */
- # endif
- # else
- # define YYSTACK_ALLOC YYMALLOC
- # define YYSTACK_FREE YYFREE
- # ifndef YYSTACK_ALLOC_MAXIMUM
- # define YYSTACK_ALLOC_MAXIMUM ((YYSIZE_T) -1)
- # endif
- # ifdef __cplusplus
- extern "C" {
- # endif
- # ifndef YYMALLOC
- # define YYMALLOC malloc
- # if (! defined (malloc) && ! defined (YYINCLUDED_STDLIB_H) \
- && (defined (__STDC__) || defined (__cplusplus)))
- void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
- # endif
- # endif
- # ifndef YYFREE
- # define YYFREE free
- # if (! defined (free) && ! defined (YYINCLUDED_STDLIB_H) \
- && (defined (__STDC__) || defined (__cplusplus)))
- void free (void *); /* INFRINGES ON USER NAME SPACE */
- # endif
- # endif
- # ifdef __cplusplus
- }
- # endif
- # endif
- #endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */
-
-
- #if (! defined (yyoverflow) \
- && (! defined (__cplusplus) \
- || (]b4_location_if([[defined (YYLTYPE_IS_TRIVIAL) && YYLTYPE_IS_TRIVIAL \
- && ]])[defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL)))
-
- /* A type that is properly aligned for any stack member. */
- union yyalloc
- {
- short int yyss;
- YYSTYPE yyvs;
- ]b4_location_if([ YYLTYPE yyls;
- ])dnl
- [};
-
- /* The size of the maximum gap between one aligned stack and the next. */
- # define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
-
- /* The size of an array large to enough to hold all stacks, each with
- N elements. */
- ]b4_location_if(
- [# define YYSTACK_BYTES(N) \
- ((N) * (sizeof (short int) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
- + 2 * YYSTACK_GAP_MAXIMUM)],
- [# define YYSTACK_BYTES(N) \
- ((N) * (sizeof (short int) + sizeof (YYSTYPE)) \
- + YYSTACK_GAP_MAXIMUM)])[
-
- /* Copy COUNT objects from FROM to TO. The source and destination do
- not overlap. */
- # ifndef YYCOPY
- # if defined (__GNUC__) && 1 < __GNUC__
- # define YYCOPY(To, From, Count) \
- __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
- # else
- # define YYCOPY(To, From, Count) \
- do \
- { \
- YYSIZE_T yyi; \
- for (yyi = 0; yyi < (Count); yyi++) \
- (To)[yyi] = (From)[yyi]; \
- } \
- while (0)
- # endif
- # endif
-
- /* Relocate STACK from its old location to the new one. The
- local variables YYSIZE and YYSTACKSIZE give the old and new number of
- elements in the stack, and YYPTR gives the new location of the
- stack. Advance YYPTR to a properly aligned location for the next
- stack. */
- # define YYSTACK_RELOCATE(Stack) \
- do \
- { \
- YYSIZE_T yynewbytes; \
- YYCOPY (&yyptr->Stack, Stack, yysize); \
- Stack = &yyptr->Stack; \
- yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
- yyptr += yynewbytes / sizeof (*yyptr); \
- } \
- while (0)
-
- #endif
-
- #if defined (__STDC__) || defined (__cplusplus)
- typedef signed char yysigned_char;
- #else
- typedef short int yysigned_char;
- #endif
-
- /* YYFINAL -- State number of the termination state. */
- #define YYFINAL ]b4_final_state_number[
- /* YYLAST -- Last index in YYTABLE. */
- #define YYLAST ]b4_last[
-
- /* YYNTOKENS -- Number of terminals. */
- #define YYNTOKENS ]b4_tokens_number[
- /* YYNNTS -- Number of nonterminals. */
- #define YYNNTS ]b4_nterms_number[
- /* YYNRULES -- Number of rules. */
- #define YYNRULES ]b4_rules_number[
- /* YYNRULES -- Number of states. */
- #define YYNSTATES ]b4_states_number[
-
- /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
- #define YYUNDEFTOK ]b4_undef_token_number[
- #define YYMAXUTOK ]b4_user_token_number_max[
-
- #define YYTRANSLATE(YYX) \
- ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
-
- /* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
- static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
- {
- ]b4_translate[
- };
-
- #if YYDEBUG
- /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
- YYRHS. */
- static const ]b4_int_type_for([b4_prhs])[ yyprhs[] =
- {
- ]b4_prhs[
- };
-
- /* YYRHS -- A `-1'-separated list of the rules' RHS. */
- static const ]b4_int_type_for([b4_rhs])[ yyrhs[] =
- {
- ]b4_rhs[
- };
-
- /* YYRLINE[YYN] -- source line where rule number YYN was defined. */
- static const ]b4_int_type_for([b4_rline])[ yyrline[] =
- {
- ]b4_rline[
- };
- #endif
-
- #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
- /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
- First, the terminals, then, starting at YYNTOKENS, nonterminals. */
- static const char *const yytname[] =
- {
- ]b4_tname[
- };
- #endif
-
- # ifdef YYPRINT
- /* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
- token YYLEX-NUM. */
- static const ]b4_int_type_for([b4_toknum])[ yytoknum[] =
- {
- ]b4_toknum[
- };
- # endif
-
- /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
- static const ]b4_int_type_for([b4_r1])[ yyr1[] =
- {
- ]b4_r1[
- };
-
- /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
- static const ]b4_int_type_for([b4_r2])[ yyr2[] =
- {
- ]b4_r2[
- };
-
- /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
- STATE-NUM when YYTABLE doesn't specify something else to do. Zero
- means the default is an error. */
- static const ]b4_int_type_for([b4_defact])[ yydefact[] =
- {
- ]b4_defact[
- };
-
- /* YYDEFGOTO[NTERM-NUM]. */
- static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
- {
- ]b4_defgoto[
- };
-
- /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
- STATE-NUM. */
- #define YYPACT_NINF ]b4_pact_ninf[
- static const ]b4_int_type_for([b4_pact])[ yypact[] =
- {
- ]b4_pact[
- };
-
- /* YYPGOTO[NTERM-NUM]. */
- static const ]b4_int_type_for([b4_pgoto])[ yypgoto[] =
- {
- ]b4_pgoto[
- };
-
- /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
- positive, shift that token. If negative, reduce the rule which
- number is the opposite. If zero, do what YYDEFACT says.
- If YYTABLE_NINF, syntax error. */
- #define YYTABLE_NINF ]b4_table_ninf[
- static const ]b4_int_type_for([b4_table])[ yytable[] =
- {
- ]b4_table[
- };
-
- static const ]b4_int_type_for([b4_check])[ yycheck[] =
- {
- ]b4_check[
- };
-
- /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
- symbol of state STATE-NUM. */
- static const ]b4_int_type_for([b4_stos])[ yystos[] =
- {
- ]b4_stos[
- };
-
- #define yyerrok (yyerrstatus = 0)
- #define yyclearin (yychar = YYEMPTY)
- #define YYEMPTY (-2)
- #define YYEOF 0
-
- #define YYACCEPT goto yyacceptlab
- #define YYABORT goto yyabortlab
- #define YYERROR goto yyerrorlab
-
-
- /* Like YYERROR except do call yyerror. This remains here temporarily
- to ease the transition to the new meaning of YYERROR, for GCC.
- Once GCC version 2 has supplanted version 1, this can go. */
-
- #define YYFAIL goto yyerrlab
-
- #define YYRECOVERING() (!!yyerrstatus)
-
- #define YYBACKUP(Token, Value) \
- do \
- if (yychar == YYEMPTY && yylen == 1) \
- { \
- yychar = (Token); \
- yylval = (Value); \
- yytoken = YYTRANSLATE (yychar); \
- YYPOPSTACK; \
- goto yybackup; \
- } \
- else \
- { \
- yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
- YYERROR; \
- } \
- while (0)
-
-
- #define YYTERROR 1
- #define YYERRCODE 256
-
-
- /* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
- If N is 0, then set CURRENT to the empty location which ends
- the previous symbol: RHS[0] (always defined). */
-
- #define YYRHSLOC(Rhs, K) ((Rhs)[K])
- #ifndef YYLLOC_DEFAULT
- # define YYLLOC_DEFAULT(Current, Rhs, N) \
- do \
- if (N) \
- { \
- (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
- (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
- (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
- (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
- } \
- else \
- { \
- (Current).first_line = (Current).last_line = \
- YYRHSLOC (Rhs, 0).last_line; \
- (Current).first_column = (Current).last_column = \
- YYRHSLOC (Rhs, 0).last_column; \
- } \
- while (0)
- #endif
-
-
- /* YY_LOCATION_PRINT -- Print the location on the stream.
- This macro was not mandated originally: define only if we know
- we won't break user code: when these are the locations we know. */
-
- #ifndef YY_LOCATION_PRINT
- # if YYLTYPE_IS_TRIVIAL
- # define YY_LOCATION_PRINT(File, Loc) \
- fprintf (File, "%d.%d-%d.%d", \
- (Loc).first_line, (Loc).first_column, \
- (Loc).last_line, (Loc).last_column)
- # else
- # define YY_LOCATION_PRINT(File, Loc) ((void) 0)
- # endif
- #endif
-
-
- /* YYLEX -- calling `yylex' with the right arguments. */
-
- #ifdef YYLEX_PARAM
- # define YYLEX yylex (]b4_pure_if([&yylval[]b4_location_if([, &yylloc]), ])[YYLEX_PARAM)
- #else
- # define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
- #endif
-
- /* Enable debugging if requested. */
- #if YYDEBUG
-
- # ifndef YYFPRINTF
- # include <stdio.h> /* INFRINGES ON USER NAME SPACE */
- # define YYFPRINTF fprintf
- # endif
-
- # define YYDPRINTF(Args) \
- do { \
- if (yydebug) \
- YYFPRINTF Args; \
- } while (0)
-
- # define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
- do { \
- if (yydebug) \
- { \
- YYFPRINTF (stderr, "%s ", Title); \
- yysymprint (stderr, \
- Type, Value]b4_location_if([, Location])[); \
- YYFPRINTF (stderr, "\n"); \
- } \
- } while (0)
-
- /*------------------------------------------------------------------.
- | yy_stack_print -- Print the state stack from its BOTTOM up to its |
- | TOP (included). |
- `------------------------------------------------------------------*/
-
- ]b4_c_function_def([yy_stack_print], [static void],
- [[short int *bottom], [bottom]],
- [[short int *top], [top]])[
- {
- YYFPRINTF (stderr, "Stack now");
- for (/* Nothing. */; bottom <= top; ++bottom)
- YYFPRINTF (stderr, " %d", *bottom);
- YYFPRINTF (stderr, "\n");
- }
-
- # define YY_STACK_PRINT(Bottom, Top) \
- do { \
- if (yydebug) \
- yy_stack_print ((Bottom), (Top)); \
- } while (0)
-
-
- /*------------------------------------------------.
- | Report that the YYRULE is going to be reduced. |
- `------------------------------------------------*/
-
- ]b4_c_function_def([yy_reduce_print], [static void],
- [[int yyrule], [yyrule]])[
- {
- int yyi;
- unsigned long int yylno = yyrline[yyrule];
- YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu), ",
- yyrule - 1, yylno);
- /* Print the symbols being reduced, and their result. */
- for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++)
- YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]);
- YYFPRINTF (stderr, "-> %s\n", yytname[yyr1[yyrule]]);
- }
-
- # define YY_REDUCE_PRINT(Rule) \
- do { \
- if (yydebug) \
- yy_reduce_print (Rule); \
- } while (0)
-
- /* Nonzero means print parse trace. It is left uninitialized so that
- multiple parsers can coexist. */
- int yydebug;
- #else /* !YYDEBUG */
- # define YYDPRINTF(Args)
- # define YY_SYMBOL_PRINT(Title, Type, Value, Location)
- # define YY_STACK_PRINT(Bottom, Top)
- # define YY_REDUCE_PRINT(Rule)
- #endif /* !YYDEBUG */
-
-
- /* YYINITDEPTH -- initial size of the parser's stacks. */
- #ifndef YYINITDEPTH
- # define YYINITDEPTH ]b4_stack_depth_init[
- #endif
-
- /* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
- if the built-in stack extension method is used).
-
- Do not make this value too large; the results are undefined if
- YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
- evaluated with infinite-precision integer arithmetic. */
-
- #ifndef YYMAXDEPTH
- # define YYMAXDEPTH ]b4_stack_depth_max[
- #endif
-
-
-
- #if YYERROR_VERBOSE
-
- # ifndef yystrlen
- # if defined (__GLIBC__) && defined (_STRING_H)
- # define yystrlen strlen
- # else
- /* Return the length of YYSTR. */
- static YYSIZE_T
- # if defined (__STDC__) || defined (__cplusplus)
- yystrlen (const char *yystr)
- # else
- yystrlen (yystr)
- const char *yystr;
- # endif
- {
- const char *yys = yystr;
-
- while (*yys++ != '\0')
- continue;
-
- return yys - yystr - 1;
- }
- # endif
- # endif
-
- # ifndef yystpcpy
- # if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE)
- # define yystpcpy stpcpy
- # else
- /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
- YYDEST. */
- static char *
- # if defined (__STDC__) || defined (__cplusplus)
- yystpcpy (char *yydest, const char *yysrc)
- # else
- yystpcpy (yydest, yysrc)
- char *yydest;
- const char *yysrc;
- # endif
- {
- char *yyd = yydest;
- const char *yys = yysrc;
-
- while ((*yyd++ = *yys++) != '\0')
- continue;
-
- return yyd - 1;
- }
- # endif
- # endif
-
- # ifndef yytnamerr
- /* Copy to YYRES the contents of YYSTR after stripping away unnecessary
- quotes and backslashes, so that it's suitable for yyerror. The
- heuristic is that double-quoting is unnecessary unless the string
- contains an apostrophe, a comma, or backslash (other than
- backslash-backslash). YYSTR is taken from yytname. If YYRES is
- null, do not copy; instead, return the length of what the result
- would have been. */
- static YYSIZE_T
- yytnamerr (char *yyres, const char *yystr)
- {
- if (*yystr == '"')
- {
- size_t yyn = 0;
- char const *yyp = yystr;
-
- for (;;)
- switch (*++yyp)
- {
- case '\'':
- case ',':
- goto do_not_strip_quotes;
-
- case '\\':
- if (*++yyp != '\\')
- goto do_not_strip_quotes;
- /* Fall through. */
- default:
- if (yyres)
- yyres[yyn] = *yyp;
- yyn++;
- break;
-
- case '"':
- if (yyres)
- yyres[yyn] = '\0';
- return yyn;
- }
- do_not_strip_quotes: ;
- }
-
- if (! yyres)
- return yystrlen (yystr);
-
- return yystpcpy (yyres, yystr) - yyres;
- }
- # endif
-
- #endif /* YYERROR_VERBOSE */
-
-
-
- #if YYDEBUG
- ]b4_yysymprint_generate([b4_c_function_def])[
- #endif /* ! YYDEBUG */
- ]b4_yydestruct_generate([b4_c_function_def])
-
-
- /* Prevent warnings from -Wmissing-prototypes. */
-
- #ifdef YYPARSE_PARAM
- # if defined (__STDC__) || defined (__cplusplus)
- int yyparse (void *YYPARSE_PARAM);
- # else
- int yyparse ();
- # endif
- #else /* ! YYPARSE_PARAM */
- b4_c_function_decl([yyparse], [int], b4_parse_param)
- #endif /* ! YYPARSE_PARAM */
-
-
- m4_divert_push([KILL])# ======================== M4 code.
- # b4_declare_parser_variables
- # ---------------------------
- # Declare the variables that are global, or local to YYPARSE if
- # pure-parser.
- m4_define([b4_declare_parser_variables],
- [/* The look-ahead symbol. */
- int yychar;
-
- /* The semantic value of the look-ahead symbol. */
- YYSTYPE yylval;
-
- /* Number of syntax errors so far. */
- int yynerrs;b4_location_if([
- /* Location data for the look-ahead symbol. */
- YYLTYPE yylloc;])
- ])
- m4_divert_pop([KILL])dnl# ====================== End of M4 code.
-
- b4_pure_if([],
- [b4_declare_parser_variables])
-
-
- /*----------.
- | yyparse. |
- `----------*/
-
- #ifdef YYPARSE_PARAM
- # if defined (__STDC__) || defined (__cplusplus)
- int yyparse (void *YYPARSE_PARAM)
- # else
- int yyparse (YYPARSE_PARAM)
- void *YYPARSE_PARAM;
- # endif
- #else /* ! YYPARSE_PARAM */
- b4_c_function_def([yyparse], [int], b4_parse_param)
- #endif
- {[
- ]b4_pure_if([b4_declare_parser_variables])[
- int yystate;
- int yyn;
- int yyresult;
- /* Number of tokens to shift before error messages enabled. */
- int yyerrstatus;
- /* Look-ahead token as an internal (translated) token number. */
- int yytoken = 0;
-
- /* Three stacks and their tools:
- `yyss': related to states,
- `yyvs': related to semantic values,
- `yyls': related to locations.
-
- Refer to the stacks thru separate pointers, to allow yyoverflow
- to reallocate them elsewhere. */
-
- /* The state stack. */
- short int yyssa[YYINITDEPTH];
- short int *yyss = yyssa;
- short int *yyssp;
-
- /* The semantic value stack. */
- YYSTYPE yyvsa[YYINITDEPTH];
- YYSTYPE *yyvs = yyvsa;
- YYSTYPE *yyvsp;
-
- ]b4_location_if(
- [[ /* The location stack. */
- YYLTYPE yylsa[YYINITDEPTH];
- YYLTYPE *yyls = yylsa;
- YYLTYPE *yylsp;
- /* The locations where the error started and ended. */
- YYLTYPE yyerror_range[2];]])[
-
- #define YYPOPSTACK (yyvsp--, yyssp--]b4_location_if([, yylsp--])[)
-
- YYSIZE_T yystacksize = YYINITDEPTH;
-
- /* The variables used to return semantic value and location from the
- action routines. */
- YYSTYPE yyval;
- ]b4_location_if([ YYLTYPE yyloc;])[
-
- /* When reducing, the number of symbols on the RHS of the reduced
- rule. */
- int yylen;
-
- YYDPRINTF ((stderr, "Starting parse\n"));
-
- yystate = 0;
- yyerrstatus = 0;
- yynerrs = 0;
- yychar = YYEMPTY; /* Cause a token to be read. */
-
- /* Initialize stack pointers.
- Waste one element of value and location stack
- so that they stay on the same level as the state stack.
- The wasted elements are never initialized. */
-
- yyssp = yyss;
- yyvsp = yyvs;
- ]b4_location_if([[ yylsp = yyls;
- #if YYLTYPE_IS_TRIVIAL
- /* Initialize the default location before parsing starts. */
- yylloc.first_line = yylloc.last_line = 1;
- yylloc.first_column = yylloc.last_column = 0;
- #endif
- ]])
- m4_ifdef([b4_initial_action], [
- m4_pushdef([b4_at_dollar], [m4_define([b4_at_dollar_used])yylloc])dnl
- m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl
- /* User initialization code. */
- b4_initial_action
- m4_popdef([b4_dollar_dollar])dnl
- m4_popdef([b4_at_dollar])dnl
- /* Line __line__ of yacc.c. */
- b4_syncline([@oline@], [@ofile@])
- ])dnl
- m4_ifdef([b4_dollar_dollar_used],[[ yyvsp[0] = yylval;
- ]])dnl
- m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc;
- ]])dnl
- [ goto yysetstate;
-
- /*------------------------------------------------------------.
- | yynewstate -- Push a new state, which is found in yystate. |
- `------------------------------------------------------------*/
- yynewstate:
- /* In all cases, when you get here, the value and location stacks
- have just been pushed. so pushing a state here evens the stacks.
- */
- yyssp++;
-
- yysetstate:
- *yyssp = yystate;
-
- if (yyss + yystacksize - 1 <= yyssp)
- {
- /* Get the current used size of the three stacks, in elements. */
- YYSIZE_T yysize = yyssp - yyss + 1;
-
- #ifdef yyoverflow
- {
- /* Give user a chance to reallocate the stack. Use copies of
- these so that the &'s don't force the real ones into
- memory. */
- YYSTYPE *yyvs1 = yyvs;
- short int *yyss1 = yyss;
- ]b4_location_if([ YYLTYPE *yyls1 = yyls;])[
-
- /* Each stack pointer address is followed by the size of the
- data in use in that stack, in bytes. This used to be a
- conditional around just the two extra args, but that might
- be undefined if yyoverflow is a macro. */
- yyoverflow (YY_("memory exhausted"),
- &yyss1, yysize * sizeof (*yyssp),
- &yyvs1, yysize * sizeof (*yyvsp),
- ]b4_location_if([ &yyls1, yysize * sizeof (*yylsp),])[
- &yystacksize);
- ]b4_location_if([ yyls = yyls1;])[
- yyss = yyss1;
- yyvs = yyvs1;
- }
- #else /* no yyoverflow */
- # ifndef YYSTACK_RELOCATE
- goto yyexhaustedlab;
- # else
- /* Extend the stack our own way. */
- if (YYMAXDEPTH <= yystacksize)
- goto yyexhaustedlab;
- yystacksize *= 2;
- if (YYMAXDEPTH < yystacksize)
- yystacksize = YYMAXDEPTH;
-
- {
- short int *yyss1 = yyss;
- union yyalloc *yyptr =
- (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
- if (! yyptr)
- goto yyexhaustedlab;
- YYSTACK_RELOCATE (yyss);
- YYSTACK_RELOCATE (yyvs);
- ]b4_location_if([ YYSTACK_RELOCATE (yyls);])[
- # undef YYSTACK_RELOCATE
- if (yyss1 != yyssa)
- YYSTACK_FREE (yyss1);
- }
- # endif
- #endif /* no yyoverflow */
-
- yyssp = yyss + yysize - 1;
- yyvsp = yyvs + yysize - 1;
- ]b4_location_if([ yylsp = yyls + yysize - 1;])[
-
- YYDPRINTF ((stderr, "Stack size increased to %lu\n",
- (unsigned long int) yystacksize));
-
- if (yyss + yystacksize - 1 <= yyssp)
- YYABORT;
- }
-
- YYDPRINTF ((stderr, "Entering state %d\n", yystate));
-
- goto yybackup;
-
- /*-----------.
- | yybackup. |
- `-----------*/
- yybackup:
-
- /* Do appropriate processing given the current state. */
- /* Read a look-ahead token if we need one and don't already have one. */
- /* yyresume: */
-
- /* First try to decide what to do without reference to look-ahead token. */
-
- yyn = yypact[yystate];
- if (yyn == YYPACT_NINF)
- goto yydefault;
-
- /* Not known => get a look-ahead token if don't already have one. */
-
- /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
- if (yychar == YYEMPTY)
- {
- YYDPRINTF ((stderr, "Reading a token: "));
- yychar = YYLEX;
- }
-
- if (yychar <= YYEOF)
- {
- yychar = yytoken = YYEOF;
- YYDPRINTF ((stderr, "Now at end of input.\n"));
- }
- else
- {
- yytoken = YYTRANSLATE (yychar);
- YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
- }
-
- /* If the proper action on seeing token YYTOKEN is to reduce or to
- detect an error, take that action. */
- yyn += yytoken;
- if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
- goto yydefault;
- yyn = yytable[yyn];
- if (yyn <= 0)
- {
- if (yyn == 0 || yyn == YYTABLE_NINF)
- goto yyerrlab;
- yyn = -yyn;
- goto yyreduce;
- }
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- /* Shift the look-ahead token. */
- YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
-
- /* Discard the token being shifted unless it is eof. */
- if (yychar != YYEOF)
- yychar = YYEMPTY;
-
- *++yyvsp = yylval;
- ]b4_location_if([ *++yylsp = yylloc;])[
-
- /* Count tokens shifted since error; after three, turn off error
- status. */
- if (yyerrstatus)
- yyerrstatus--;
-
- yystate = yyn;
- goto yynewstate;
-
-
- /*-----------------------------------------------------------.
- | yydefault -- do the default action for the current state. |
- `-----------------------------------------------------------*/
- yydefault:
- yyn = yydefact[yystate];
- if (yyn == 0)
- goto yyerrlab;
- goto yyreduce;
-
-
- /*-----------------------------.
- | yyreduce -- Do a reduction. |
- `-----------------------------*/
- yyreduce:
- /* yyn is the number of a rule to reduce with. */
- yylen = yyr2[yyn];
-
- /* If YYLEN is nonzero, implement the default value of the action:
- `$$ = $1'.
-
- Otherwise, the following line sets YYVAL to garbage.
- This behavior is undocumented and Bison
- users should not rely upon it. Assigning to YYVAL
- unconditionally makes the parser a bit smaller, and it avoids a
- GCC warning that YYVAL may be used uninitialized. */
- yyval = yyvsp[1-yylen];
-
- ]b4_location_if(
- [[ /* Default location. */
- YYLLOC_DEFAULT (yyloc, yylsp - yylen, yylen);]])[
- YY_REDUCE_PRINT (yyn);
- switch (yyn)
- ]{
- b4_actions
- default: break;
- }
-
- /* Line __line__ of yacc.c. */
- b4_syncline([@oline@], [@ofile@])
-
- [ yyvsp -= yylen;
- yyssp -= yylen;
- ]b4_location_if([ yylsp -= yylen;])[
-
- YY_STACK_PRINT (yyss, yyssp);
-
- *++yyvsp = yyval;
- ]b4_location_if([ *++yylsp = yyloc;])[
-
- /* Now `shift' the result of the reduction. Determine what state
- that goes to, based on the state we popped back to and the rule
- number reduced by. */
-
- yyn = yyr1[yyn];
-
- yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
- if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
- yystate = yytable[yystate];
- else
- yystate = yydefgoto[yyn - YYNTOKENS];
-
- goto yynewstate;
-
-
- /*------------------------------------.
- | yyerrlab -- here on detecting error |
- `------------------------------------*/
- yyerrlab:
- /* If not already recovering from an error, report this error. */
- if (!yyerrstatus)
- {
- ++yynerrs;
- #if YYERROR_VERBOSE
- yyn = yypact[yystate];
-
- if (YYPACT_NINF < yyn && yyn < YYLAST)
- {
- int yytype = YYTRANSLATE (yychar);
- YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
- YYSIZE_T yysize = yysize0;
- YYSIZE_T yysize1;
- int yysize_overflow = 0;
- char *yymsg = 0;
- # define YYERROR_VERBOSE_ARGS_MAXIMUM 5
- char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
- int yyx;
-
- #if 0
- /* This is so xgettext sees the translatable formats that are
- constructed on the fly. */
- YY_("syntax error, unexpected %s");
- YY_("syntax error, unexpected %s, expecting %s");
- YY_("syntax error, unexpected %s, expecting %s or %s");
- YY_("syntax error, unexpected %s, expecting %s or %s or %s");
- YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
- #endif
- char *yyfmt;
- char const *yyf;
- static char const yyunexpected[] = "syntax error, unexpected %s";
- static char const yyexpecting[] = ", expecting %s";
- static char const yyor[] = " or %s";
- char yyformat[sizeof yyunexpected
- + sizeof yyexpecting - 1
- + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
- * (sizeof yyor - 1))];
- char const *yyprefix = yyexpecting;
-
- /* Start YYX at -YYN if negative to avoid negative indexes in
- YYCHECK. */
- int yyxbegin = yyn < 0 ? -yyn : 0;
-
- /* Stay within bounds of both yycheck and yytname. */
- int yychecklim = YYLAST - yyn;
- int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
- int yycount = 1;
-
- yyarg[0] = yytname[yytype];
- yyfmt = yystpcpy (yyformat, yyunexpected);
-
- for (yyx = yyxbegin; yyx < yyxend; ++yyx)
- if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
- {
- if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
- {
- yycount = 1;
- yysize = yysize0;
- yyformat[sizeof yyunexpected - 1] = '\0';
- break;
- }
- yyarg[yycount++] = yytname[yyx];
- yysize1 = yysize + yytnamerr (0, yytname[yyx]);
- yysize_overflow |= yysize1 < yysize;
- yysize = yysize1;
- yyfmt = yystpcpy (yyfmt, yyprefix);
- yyprefix = yyor;
- }
-
- yyf = YY_(yyformat);
- yysize1 = yysize + yystrlen (yyf);
- yysize_overflow |= yysize1 < yysize;
- yysize = yysize1;
-
- if (!yysize_overflow && yysize <= YYSTACK_ALLOC_MAXIMUM)
- yymsg = (char *) YYSTACK_ALLOC (yysize);
- if (yymsg)
- {
- /* Avoid sprintf, as that infringes on the user's name space.
- Don't have undefined behavior even if the translation
- produced a string with the wrong number of "%s"s. */
- char *yyp = yymsg;
- int yyi = 0;
- while ((*yyp = *yyf))
- {
- if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
- {
- yyp += yytnamerr (yyp, yyarg[yyi++]);
- yyf += 2;
- }
- else
- {
- yyp++;
- yyf++;
- }
- }
- yyerror (]b4_yyerror_args[yymsg);
- YYSTACK_FREE (yymsg);
- }
- else
- {
- yyerror (]b4_yyerror_args[YY_("syntax error"));
- goto yyexhaustedlab;
- }
- }
- else
- #endif /* YYERROR_VERBOSE */
- yyerror (]b4_yyerror_args[YY_("syntax error"));
- }
-
- ]b4_location_if([[ yyerror_range[0] = yylloc;]])[
-
- if (yyerrstatus == 3)
- {
- /* If just tried and failed to reuse look-ahead token after an
- error, discard it. */
-
- if (yychar <= YYEOF)
- {
- /* Return failure if at end of input. */
- if (yychar == YYEOF)
- YYABORT;
- }
- else
- {
- yydestruct ("Error: discarding", yytoken, &yylval]b4_location_if([, &yylloc])[);
- yychar = YYEMPTY;
- }
- }
-
- /* Else will try to reuse look-ahead token after shifting the error
- token. */
- goto yyerrlab1;
-
-
- /*---------------------------------------------------.
- | yyerrorlab -- error raised explicitly by YYERROR. |
- `---------------------------------------------------*/
- yyerrorlab:
-
- /* Pacify compilers like GCC when the user code never invokes
- YYERROR and the label yyerrorlab therefore never appears in user
- code. */
- if (0)
- goto yyerrorlab;
-
- ]b4_location_if([[ yyerror_range[0] = yylsp[1-yylen];
- yylsp -= yylen;
- ]])[yyvsp -= yylen;
- yyssp -= yylen;
- yystate = *yyssp;
- goto yyerrlab1;
-
-
- /*-------------------------------------------------------------.
- | yyerrlab1 -- common code for both syntax error and YYERROR. |
- `-------------------------------------------------------------*/
- yyerrlab1:
- yyerrstatus = 3; /* Each real token shifted decrements this. */
-
- for (;;)
- {
- yyn = yypact[yystate];
- if (yyn != YYPACT_NINF)
- {
- yyn += YYTERROR;
- if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
- {
- yyn = yytable[yyn];
- if (0 < yyn)
- break;
- }
- }
-
- /* Pop the current state because it cannot handle the error token. */
- if (yyssp == yyss)
- YYABORT;
-
- ]b4_location_if([[ yyerror_range[0] = *yylsp;]])[
- yydestruct ("Error: popping", yystos[yystate], yyvsp]b4_location_if([, yylsp])[);
- YYPOPSTACK;
- yystate = *yyssp;
- YY_STACK_PRINT (yyss, yyssp);
- }
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- *++yyvsp = yylval;
- ]b4_location_if([[
- yyerror_range[1] = yylloc;
- /* Using YYLLOC is tempting, but would change the location of
- the look-ahead. YYLOC is available though. */
- YYLLOC_DEFAULT (yyloc, yyerror_range - 1, 2);
- *++yylsp = yyloc;]])[
-
- /* Shift the error token. */
- YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
-
- yystate = yyn;
- goto yynewstate;
-
-
- /*-------------------------------------.
- | yyacceptlab -- YYACCEPT comes here. |
- `-------------------------------------*/
- yyacceptlab:
- yyresult = 0;
- goto yyreturn;
-
- /*-----------------------------------.
- | yyabortlab -- YYABORT comes here. |
- `-----------------------------------*/
- yyabortlab:
- yyresult = 1;
- goto yyreturn;
-
- #ifndef yyoverflow
- /*-------------------------------------------------.
- | yyexhaustedlab -- memory exhaustion comes here. |
- `-------------------------------------------------*/
- yyexhaustedlab:
- yyerror (]b4_yyerror_args[YY_("memory exhausted"));
- yyresult = 2;
- /* Fall through. */
- #endif
-
- yyreturn:
- if (yychar != YYEOF && yychar != YYEMPTY)
- yydestruct ("Cleanup: discarding lookahead",
- yytoken, &yylval]b4_location_if([, &yylloc])[);
- while (yyssp != yyss)
- {
- yydestruct ("Cleanup: popping",
- yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[);
- YYPOPSTACK;
- }
- #ifndef yyoverflow
- if (yyss != yyssa)
- YYSTACK_FREE (yyss);
- #endif
- return yyresult;
- ]}
-
-
- b4_epilogue
- m4_if(b4_defines_flag, 0, [],
- [@output @output_header_name@
- b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
- [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005])
-
- /* As a special exception, when this file is copied by Bison into a
- Bison output file, you may use that output file without restriction.
- This special exception was added by the Free Software Foundation
- in version 1.24 of Bison. */
-
- b4_token_enums_defines(b4_tokens)
-
- #if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
- m4_ifdef([b4_stype],
- [b4_syncline([b4_stype_line], [b4_file_name])
- typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])b4_stype YYSTYPE;
- /* Line __line__ of yacc.c. */
- b4_syncline([@oline@], [@ofile@])],
- [typedef int YYSTYPE;])
- # define yystype YYSTYPE /* obsolescent; will be withdrawn */
- # define YYSTYPE_IS_DECLARED 1
- # define YYSTYPE_IS_TRIVIAL 1
- #endif
-
- b4_pure_if([],
- [extern YYSTYPE b4_prefix[]lval;])
-
- b4_location_if(
- [#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED)
- typedef struct YYLTYPE
- {
- int first_line;
- int first_column;
- int last_line;
- int last_column;
- } YYLTYPE;
- # define yyltype YYLTYPE /* obsolescent; will be withdrawn */
- # define YYLTYPE_IS_DECLARED 1
- # define YYLTYPE_IS_TRIVIAL 1
- #endif
-
- m4_if(b4_pure, [0],
- [extern YYLTYPE b4_prefix[]lloc;])
- ])
- ])
-