X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/0c15323de7250aea9aaef638dd7390cf24ad9ce8..d2ffe11637313569116e8a9f891785b842ddb1e9:/src/parse-gram.c diff --git a/src/parse-gram.c b/src/parse-gram.c index 3b29bbfa..9273f9f2 100644 --- a/src/parse-gram.c +++ b/src/parse-gram.c @@ -1,390 +1,254 @@ -/* A Bison parser, made from parse-gram.y - by GNU bison 1.35. */ +/* A Bison parser, made by GNU Bison 1.875b. */ -#define YYBISON 1 /* Identify Bison output. */ +/* Skeleton parser for Yacc-like parsing with Bison, + Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003 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, 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* 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. */ + +/* Identify Bison output. */ +#define YYBISON 1 + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 1 + +/* Using locations. */ +#define YYLSP_NEEDED 1 + +/* If NAME_PREFIX is specified substitute the variables and functions + names. */ #define yyparse gram_parse -#define yylex gram_lex +#define yylex gram_lex #define yyerror gram_error -#define yylval gram_lval -#define yychar gram_char +#define yylval gram_lval +#define yychar gram_char #define yydebug gram_debug #define yynerrs gram_nerrs -#define YYLSP_NEEDED 1 - -# define GRAM_EOF 0 -# define STRING 257 -# define CHARACTER 258 -# define INT 259 -# define PERCENT_TOKEN 260 -# define PERCENT_NTERM 261 -# define PERCENT_TYPE 262 -# define PERCENT_UNION 263 -# define PERCENT_EXPECT 264 -# define PERCENT_START 265 -# define PERCENT_LEFT 266 -# define PERCENT_RIGHT 267 -# define PERCENT_NONASSOC 268 -# define PERCENT_PREC 269 -# define PERCENT_VERBOSE 270 -# define PERCENT_ERROR_VERBOSE 271 -# define PERCENT_OUTPUT 272 -# define PERCENT_FILE_PREFIX 273 -# define PERCENT_NAME_PREFIX 274 -# define PERCENT_DEFINE 275 -# define PERCENT_PURE_PARSER 276 -# define PERCENT_DEFINES 277 -# define PERCENT_YACC 278 -# define PERCENT_DEBUG 279 -# define PERCENT_LOCATIONS 280 -# define PERCENT_NO_LINES 281 -# define PERCENT_SKELETON 282 -# define PERCENT_TOKEN_TABLE 283 -# define TYPE 284 -# define EQUAL 285 -# define SEMICOLON 286 -# define COLON 287 -# define PIPE 288 -# define ID 289 -# define PERCENT_PERCENT 290 -# define PROLOGUE 291 -# define EPILOGUE 292 -# define BRACED_CODE 293 - -#line 31 "parse-gram.y" +#define yylloc gram_lloc + +/* Tokens. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + /* Put the tokens into the symbol table, so that GDB and other debuggers + know about them. */ + enum yytokentype { + GRAM_EOF = 0, + STRING = 258, + INT = 259, + PERCENT_TOKEN = 260, + PERCENT_NTERM = 261, + PERCENT_TYPE = 262, + PERCENT_DESTRUCTOR = 263, + PERCENT_PRINTER = 264, + PERCENT_UNION = 265, + PERCENT_LEFT = 266, + PERCENT_RIGHT = 267, + PERCENT_NONASSOC = 268, + PERCENT_PREC = 269, + PERCENT_DPREC = 270, + PERCENT_MERGE = 271, + PERCENT_DEBUG = 272, + PERCENT_DEFINE = 273, + PERCENT_DEFINES = 274, + PERCENT_ERROR_VERBOSE = 275, + PERCENT_EXPECT = 276, + PERCENT_FILE_PREFIX = 277, + PERCENT_GLR_PARSER = 278, + PERCENT_LEX_PARAM = 279, + PERCENT_LOCATIONS = 280, + PERCENT_NAME_PREFIX = 281, + PERCENT_NO_LINES = 282, + PERCENT_OUTPUT = 283, + PERCENT_PARSE_PARAM = 284, + PERCENT_PURE_PARSER = 285, + PERCENT_SKELETON = 286, + PERCENT_START = 287, + PERCENT_TOKEN_TABLE = 288, + PERCENT_VERBOSE = 289, + PERCENT_YACC = 290, + TYPE = 291, + EQUAL = 292, + SEMICOLON = 293, + PIPE = 294, + ID = 295, + ID_COLON = 296, + PERCENT_PERCENT = 297, + PROLOGUE = 298, + EPILOGUE = 299, + BRACED_CODE = 300 + }; +#endif +#define GRAM_EOF 0 +#define STRING 258 +#define INT 259 +#define PERCENT_TOKEN 260 +#define PERCENT_NTERM 261 +#define PERCENT_TYPE 262 +#define PERCENT_DESTRUCTOR 263 +#define PERCENT_PRINTER 264 +#define PERCENT_UNION 265 +#define PERCENT_LEFT 266 +#define PERCENT_RIGHT 267 +#define PERCENT_NONASSOC 268 +#define PERCENT_PREC 269 +#define PERCENT_DPREC 270 +#define PERCENT_MERGE 271 +#define PERCENT_DEBUG 272 +#define PERCENT_DEFINE 273 +#define PERCENT_DEFINES 274 +#define PERCENT_ERROR_VERBOSE 275 +#define PERCENT_EXPECT 276 +#define PERCENT_FILE_PREFIX 277 +#define PERCENT_GLR_PARSER 278 +#define PERCENT_LEX_PARAM 279 +#define PERCENT_LOCATIONS 280 +#define PERCENT_NAME_PREFIX 281 +#define PERCENT_NO_LINES 282 +#define PERCENT_OUTPUT 283 +#define PERCENT_PARSE_PARAM 284 +#define PERCENT_PURE_PARSER 285 +#define PERCENT_SKELETON 286 +#define PERCENT_START 287 +#define PERCENT_TOKEN_TABLE 288 +#define PERCENT_VERBOSE 289 +#define PERCENT_YACC 290 +#define TYPE 291 +#define EQUAL 292 +#define SEMICOLON 293 +#define PIPE 294 +#define ID 295 +#define ID_COLON 296 +#define PERCENT_PERCENT 297 +#define PROLOGUE 298 +#define EPILOGUE 299 +#define BRACED_CODE 300 + + + + +/* Copy the first part of user declarations. */ +#line 32 "parse-gram.y" #include "system.h" -#include "muscle_tab.h" + +#include "complain.h" +#include "conflicts.h" #include "files.h" #include "getargs.h" -#include "output.h" #include "gram.h" +#include "muscle_tab.h" +#include "output.h" #include "reader.h" -#include "conflicts.h" +#include "symlist.h" -/* Produce verbose parse errors. */ +/* Produce verbose syntax errors. */ #define YYERROR_VERBOSE 1 -/* Pass the control structure to YYPARSE and YYLEX. */ -#define YYPARSE_PARAM gram_control -#define YYLEX_PARAM gram_control -/* YYPARSE receives GRAM_CONTROL as a void *. Provide a - correctly typed access to it. */ -#define yycontrol ((gram_control_t *) gram_control) +#define YYLLOC_DEFAULT(Current, Rhs, N) (Current) = lloc_default (Rhs, N) +static YYLTYPE lloc_default (YYLTYPE const *, int); -/* Request detailed parse error messages, and pass them to - GRAM_ERROR. */ +/* Request detailed syntax error messages, and pass them to GRAM_ERROR. + FIXME: depends on the undocumented availability of YYLLOC. */ #undef yyerror #define yyerror(Msg) \ - gram_error (yycontrol, &yylloc, Msg) + gram_error (&yylloc, Msg) +static void gram_error (location const *, char const *); -/* When debugging our pure parser, we want to see values and locations - of the tokens. */ #define YYPRINT(File, Type, Value) \ - yyprint (File, &yylloc, Type, &Value) -static void yyprint (FILE *file, const location_t *loc, - int type, const yystype *value); + print_token_value (File, Type, &Value) +static void print_token_value (FILE *, int, YYSTYPE const *); + +static void add_param (char const *, char *, location); symbol_class current_class = unknown_sym; -char *current_type = 0; -symbol_t *current_lhs; -associativity current_assoc; +uniqstr current_type = 0; +symbol *current_lhs; +location current_lhs_location; +assoc current_assoc; int current_prec = 0; -#line 73 "parse-gram.y" -#ifndef YYSTYPE -typedef union -{ - symbol_t *symbol; - int integer; - char *string; - associativity assoc; -} yystype; -# define YYSTYPE yystype -# define YYSTYPE_IS_TRIVIAL 1 -#endif - -#ifndef YYLTYPE -typedef struct yyltype -{ - int first_line; - int first_column; - - int last_line; - int last_column; -} yyltype; - -# define YYLTYPE yyltype -# define YYLTYPE_IS_TRIVIAL 1 -#endif +/* Enabling traces. */ #ifndef YYDEBUG # define YYDEBUG 1 #endif - - -#define YYFINAL 94 -#define YYFLAG -32768 -#define YYNTBASE 41 - -/* YYTRANSLATE(YYLEX) -- Bison token number corresponding to YYLEX. */ -#define YYTRANSLATE(x) ((unsigned)(x) <= 293 ? yytranslate[x] : 68) - -/* YYTRANSLATE[YYLEX] -- Bison token number corresponding to YYLEX. */ -static const char yytranslate[] = -{ - 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 1, 4, 5, 6, - 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, - 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, - 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, - 37, 38, 39, 40 -}; - -#if YYDEBUG -static const short yyprhs[] = -{ - 0, 0, 1, 7, 8, 11, 13, 15, 17, 21, - 23, 25, 28, 32, 34, 38, 40, 44, 46, 49, - 51, 53, 55, 57, 58, 62, 65, 66, 70, 71, - 76, 80, 81, 86, 88, 90, 92, 93, 95, 97, - 100, 102, 105, 107, 109, 112, 115, 119, 121, 124, - 126, 129, 130, 136, 138, 142, 143, 146, 149, 153, - 155, 157, 159, 161, 163, 165, 166, 169, 170 -}; -static const short yyrhs[] = -{ - -1, 42, 43, 37, 57, 66, 0, 0, 43, 44, - 0, 45, 0, 38, 0, 26, 0, 22, 65, 65, - 0, 24, 0, 18, 0, 11, 6, 0, 20, 32, - 65, 0, 27, 0, 21, 32, 65, 0, 28, 0, - 19, 32, 65, 0, 23, 0, 29, 65, 0, 30, - 0, 17, 0, 25, 0, 49, 0, 0, 8, 46, - 56, 0, 12, 62, 0, 0, 7, 47, 56, 0, - 0, 9, 31, 48, 53, 0, 10, 40, 67, 0, - 0, 51, 52, 50, 54, 0, 13, 0, 14, 0, - 15, 0, 0, 31, 0, 36, 0, 53, 36, 0, - 62, 0, 54, 62, 0, 31, 0, 36, 0, 36, - 6, 0, 36, 64, 0, 36, 6, 64, 0, 55, - 0, 56, 55, 0, 58, 0, 57, 58, 0, 0, - 36, 34, 59, 60, 33, 0, 61, 0, 60, 35, - 61, 0, 0, 61, 62, 0, 61, 63, 0, 61, - 16, 62, 0, 36, 0, 64, 0, 5, 0, 40, - 0, 4, 0, 4, 0, 0, 37, 39, 0, 0, - 33, 0 -}; - +/* Enabling verbose error messages. */ +#ifdef YYERROR_VERBOSE +# undef YYERROR_VERBOSE +# define YYERROR_VERBOSE 1 +#else +# define YYERROR_VERBOSE 0 #endif -#if YYDEBUG -/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ -static const short yyrline[] = -{ - 0, 132, 132, 140, 142, 145, 147, 151, 152, 153, - 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, - 164, 165, 168, 170, 170, 175, 179, 179, 184, 184, - 188, 196, 196, 203, 205, 206, 209, 211, 215, 217, - 221, 227, 236, 241, 246, 252, 258, 268, 271, 275, - 277, 280, 280, 285, 287, 290, 293, 295, 297, 301, - 303, 304, 307, 313, 322, 330, 335, 341, 343 -}; +#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) +#line 75 "parse-gram.y" +typedef union YYSTYPE { + symbol *symbol; + symbol_list *list; + int integer; + char *chars; + assoc assoc; + uniqstr uniqstr; +} YYSTYPE; +/* Line 191 of yacc.c. */ +#line 226 "parse-gram.c" +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 +# define YYSTYPE_IS_TRIVIAL 1 #endif - -#if (YYDEBUG) || defined YYERROR_VERBOSE - -/* YYTNAME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */ -static const char *const yytname[] = +#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED) +typedef struct YYLTYPE { - "$", "error", "$undefined.", "\"end of string\"", "STRING", "CHARACTER", - "INT", "\"%token\"", "\"%nterm\"", "\"%type\"", "\"%union\"", - "\"%expect\"", "\"%start\"", "\"%left\"", "\"%right\"", "\"%nonassoc\"", - "\"%prec\"", "\"%verbose\"", "\"%error-verbose\"", "\"%output\"", - "\"%file-prefix\"", "\"%name-prefix\"", "\"%define\"", - "\"%pure-parser\"", "\"%defines\"", "\"%yacc\"", "\"%debug\"", - "\"%locations\"", "\"%no-lines\"", "\"%skeleton\"", "\"%token-table\"", - "TYPE", "\"=\"", "\";\"", "\":\"", "\"|\"", "\"identifier\"", "\"%%\"", - "PROLOGUE", "EPILOGUE", "BRACED_CODE", "input", "@1", "directives", - "directive", "grammar_directives", "@2", "@3", "@4", - "precedence_directives", "@5", "precedence_directive", "type.opt", - "nterms_to_type.1", "terms_to_prec.1", "symbol_def", "symbol_defs.1", - "gram", "rules", "@6", "rhses.1", "rhs", "symbol", "action", - "string_as_id", "string_content", "epilogue.opt", "semi_colon_opt", 0 -}; + 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 -/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ -static const short yyr1[] = -{ - 0, 42, 41, 43, 43, 44, 44, 44, 44, 44, - 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, - 44, 44, 45, 46, 45, 45, 47, 45, 48, 45, - 45, 50, 49, 51, 51, 51, 52, 52, 53, 53, - 54, 54, 55, 55, 55, 55, 55, 56, 56, 57, - 57, 59, 58, 60, 60, 61, 61, 61, 61, 62, - 62, 62, 63, 64, 65, 66, 66, 67, 67 -}; - -/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ -static const short yyr2[] = -{ - 0, 0, 5, 0, 2, 1, 1, 1, 3, 1, - 1, 2, 3, 1, 3, 1, 3, 1, 2, 1, - 1, 1, 1, 0, 3, 2, 0, 3, 0, 4, - 3, 0, 4, 1, 1, 1, 0, 1, 1, 2, - 1, 2, 1, 1, 2, 2, 3, 1, 2, 1, - 2, 0, 5, 1, 3, 0, 2, 2, 3, 1, - 1, 1, 1, 1, 1, 0, 2, 0, 1 -}; - -/* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE - doesn't specify something else to do. Zero means the default is an - error. */ -static const short yydefact[] = -{ - 1, 3, 0, 26, 23, 0, 0, 0, 0, 33, - 34, 35, 20, 10, 0, 0, 0, 0, 17, 9, - 21, 7, 13, 15, 0, 19, 0, 6, 4, 5, - 22, 36, 0, 0, 28, 67, 11, 63, 61, 59, - 25, 60, 0, 0, 0, 64, 0, 18, 0, 65, - 49, 37, 31, 42, 43, 47, 27, 24, 0, 68, - 30, 16, 12, 14, 8, 51, 0, 50, 2, 0, - 44, 45, 48, 38, 29, 55, 66, 32, 40, 46, - 39, 0, 53, 41, 52, 55, 0, 62, 56, 57, - 54, 58, 0, 0, 0 -}; - -static const short yydefgoto[] = -{ - 92, 1, 2, 28, 29, 33, 32, 58, 30, 69, - 31, 52, 74, 77, 55, 56, 49, 50, 75, 81, - 82, 88, 89, 41, 46, 68, 60 -}; - -static const short yypact[] = -{ - -32768,-32768, 72,-32768,-32768, -22, -29, 8, -1,-32768, - -32768,-32768,-32768,-32768, -16, -14, -11, 22,-32768,-32768, - -32768,-32768,-32768,-32768, 22,-32768, -6,-32768,-32768,-32768, - -32768, 0, -24, -24,-32768, 1,-32768,-32768,-32768,-32768, - -32768,-32768, 22, 22, 22,-32768, 22,-32768, -2, -17, - -32768,-32768,-32768,-32768, 4,-32768, -24, -24, 2,-32768, - -32768,-32768,-32768,-32768,-32768,-32768, 3,-32768,-32768, -1, - 32,-32768,-32768,-32768, 5,-32768,-32768, -1,-32768,-32768, - -32768, -18, -3,-32768,-32768,-32768, -1,-32768,-32768,-32768, - -3,-32768, 39, 40,-32768 -}; - -static const short yypgoto[] = -{ - -32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768, - -32768,-32768,-32768,-32768, -28, 10,-32768, -5,-32768,-32768, - -40, -8,-32768, -48, -19,-32768,-32768 -}; - - -#define YYLAST 110 - - -static const short yytable[] = -{ - 40, 37, 38, 37, 38, 47, 71, 53, 37, 34, - 70, 35, 54, 86, 36, 84, 42, 85, 43, 48, - 66, 44, 79, 61, 62, 63, 45, 64, 72, 72, - 48, 51, 65, 39, 59, 39, 37, 87, 73, 93, - 94, 80, 76, 57, 67, 90, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 78, 0, 0, 0, 0, 0, 0, 0, 83, - 0, 0, 0, 0, 0, 0, 0, 0, 91, 3, - 4, 5, 6, 7, 8, 9, 10, 11, 0, 12, - 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, - 23, 24, 25, 0, 0, 0, 0, 0, 0, 26, - 27 -}; - -static const short yycheck[] = -{ - 8, 4, 5, 4, 5, 24, 54, 31, 4, 31, - 6, 40, 36, 16, 6, 33, 32, 35, 32, 36, - 37, 32, 70, 42, 43, 44, 4, 46, 56, 57, - 36, 31, 34, 36, 33, 36, 4, 40, 36, 0, - 0, 36, 39, 33, 49, 85, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, 69, -1, -1, -1, -1, -1, -1, -1, 77, - -1, -1, -1, -1, -1, -1, -1, -1, 86, 7, - 8, 9, 10, 11, 12, 13, 14, 15, -1, 17, - 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, - 28, 29, 30, -1, -1, -1, -1, -1, -1, 37, - 38 -}; -#define YYPURE 1 -/* -*-C-*- Note some compilers choke on comments on `#line' lines. */ -#line 3 "/usr/share/bison/bison.simple" +/* Copy the second part of user declarations. */ -/* Skeleton output parser for bison, - Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002 Free Software - Foundation, Inc. +/* Line 214 of yacc.c. */ +#line 250 "parse-gram.c" - 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, 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., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* 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. */ - -/* This is the parser code that is written into each bison parser when - the %semantic_parser declaration is not specified in the grammar. - It was written by Richard Stallman by simplifying the hairy parser - used when %semantic_parser is specified. */ - -/* 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. */ - -#if ! defined (yyoverflow) || defined (YYERROR_VERBOSE) +#if ! defined (yyoverflow) || YYERROR_VERBOSE /* The parser invokes alloca or malloc; define the necessary symbols. */ @@ -413,7 +277,7 @@ static const short yycheck[] = # define YYSTACK_ALLOC malloc # define YYSTACK_FREE free # endif -#endif /* ! defined (yyoverflow) || defined (YYERROR_VERBOSE) */ +#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ #if (! defined (yyoverflow) \ @@ -425,25 +289,17 @@ union yyalloc { short yyss; YYSTYPE yyvs; -# if YYLSP_NEEDED - YYLTYPE yyls; -# endif + YYLTYPE yyls; }; /* The size of the maximum gap between one aligned stack and the next. */ -# define YYSTACK_GAP_MAX (sizeof (union yyalloc) - 1) +# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1) /* The size of an array large to enough to hold all stacks, each with N elements. */ -# if YYLSP_NEEDED -# define YYSTACK_BYTES(N) \ +# define YYSTACK_BYTES(N) \ ((N) * (sizeof (short) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \ - + 2 * YYSTACK_GAP_MAX) -# else -# define YYSTACK_BYTES(N) \ - ((N) * (sizeof (short) + sizeof (YYSTYPE)) \ - + YYSTACK_GAP_MAX) -# endif + + 2 * YYSTACK_GAP_MAXIMUM) /* Copy COUNT objects from FROM to TO. The source and destination do not overlap. */ @@ -474,13 +330,306 @@ union yyalloc YYSIZE_T yynewbytes; \ YYCOPY (&yyptr->Stack, Stack, yysize); \ Stack = &yyptr->Stack; \ - yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAX; \ + 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 yysigned_char; +#endif + +/* YYFINAL -- State number of the termination state. */ +#define YYFINAL 3 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 157 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 46 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 25 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 74 +/* YYNRULES -- Number of states. */ +#define YYNSTATES 101 + +/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ +#define YYUNDEFTOK 2 +#define YYMAXUTOK 300 + +#define YYTRANSLATE(YYX) \ + ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) + +/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ +static const unsigned char yytranslate[] = +{ + 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, + 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, + 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, + 45 +}; + +#if YYDEBUG +/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in + YYRHS. */ +static const unsigned char yyprhs[] = +{ + 0, 0, 3, 8, 9, 12, 14, 16, 18, 22, + 24, 26, 29, 33, 35, 37, 39, 43, 45, 49, + 51, 53, 56, 58, 60, 62, 64, 66, 68, 71, + 73, 76, 79, 80, 84, 85, 89, 93, 97, 99, + 101, 103, 104, 106, 108, 111, 113, 115, 118, 121, + 125, 127, 130, 132, 135, 137, 139, 142, 144, 145, + 149, 151, 155, 156, 159, 162, 166, 170, 174, 176, + 178, 180, 182, 184, 185 +}; + +/* YYRHS -- A `-1'-separated list of the rules' RHS. */ +static const yysigned_char yyrhs[] = +{ + 47, 0, -1, 48, 42, 60, 70, -1, -1, 48, + 49, -1, 50, -1, 43, -1, 17, -1, 18, 69, + 69, -1, 19, -1, 20, -1, 21, 4, -1, 22, + 37, 69, -1, 23, -1, 24, -1, 25, -1, 26, + 37, 69, -1, 27, -1, 28, 37, 69, -1, 29, + -1, 30, -1, 31, 69, -1, 33, -1, 34, -1, + 35, -1, 38, -1, 54, -1, 51, -1, 32, 66, + -1, 10, -1, 8, 57, -1, 9, 57, -1, -1, + 6, 52, 59, -1, -1, 5, 53, 59, -1, 7, + 36, 57, -1, 55, 56, 57, -1, 11, -1, 12, + -1, 13, -1, -1, 36, -1, 66, -1, 57, 66, + -1, 36, -1, 40, -1, 40, 4, -1, 40, 68, + -1, 40, 4, 68, -1, 58, -1, 59, 58, -1, + 61, -1, 60, 61, -1, 62, -1, 50, -1, 1, + 38, -1, 38, -1, -1, 41, 63, 64, -1, 65, + -1, 64, 39, 65, -1, -1, 65, 66, -1, 65, + 67, -1, 65, 14, 66, -1, 65, 15, 4, -1, + 65, 16, 36, -1, 40, -1, 68, -1, 45, -1, + 3, -1, 3, -1, -1, 42, 44, -1 +}; + +/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ +static const unsigned short yyrline[] = +{ + 0, 161, 161, 169, 171, 175, 176, 177, 178, 179, + 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, + 190, 191, 192, 193, 194, 195, 199, 200, 201, 205, + 211, 218, 228, 228, 233, 233, 238, 248, 263, 264, + 265, 269, 270, 276, 277, 282, 286, 291, 297, 303, + 314, 315, 324, 325, 331, 332, 337, 341, 345, 345, + 349, 350, 355, 356, 358, 360, 362, 364, 369, 370, + 374, 380, 389, 396, 398 +}; +#endif + +#if YYDEBUG || YYERROR_VERBOSE +/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ +static const char *const yytname[] = +{ + "\"end of file\"", "error", "$undefined", "\"string\"", "\"integer\"", + "\"%token\"", "\"%nterm\"", "\"%type\"", "\"%destructor {...}\"", + "\"%printer {...}\"", "\"%union {...}\"", "\"%left\"", "\"%right\"", + "\"%nonassoc\"", "\"%prec\"", "\"%dprec\"", "\"%merge\"", "\"%debug\"", + "\"%define\"", "\"%defines\"", "\"%error-verbose\"", "\"%expect\"", + "\"%file-prefix\"", "\"%glr-parser\"", "\"%lex-param {...}\"", + "\"%locations\"", "\"%name-prefix\"", "\"%no-lines\"", "\"%output\"", + "\"%parse-param {...}\"", "\"%pure-parser\"", "\"%skeleton\"", + "\"%start\"", "\"%token-table\"", "\"%verbose\"", "\"%yacc\"", + "\"type\"", "\"=\"", "\";\"", "\"|\"", "\"identifier\"", + "\"identifier:\"", "\"%%\"", "\"%{...%}\"", "\"epilogue\"", "\"{...}\"", + "$accept", "input", "declarations", "declaration", + "grammar_declaration", "symbol_declaration", "@1", "@2", + "precedence_declaration", "precedence_declarator", "type.opt", + "symbols.1", "symbol_def", "symbol_defs.1", "grammar", + "rules_or_grammar_declaration", "rules", "@3", "rhses.1", "rhs", + "symbol", "action", "string_as_id", "string_content", "epilogue.opt", 0 +}; +#endif + +# ifdef YYPRINT +/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to + token YYLEX-NUM. */ +static const unsigned short yytoknum[] = +{ + 0, 256, 257, 258, 259, 260, 261, 262, 263, 264, + 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, + 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, + 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, + 295, 296, 297, 298, 299, 300 +}; +# endif + +/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const unsigned char yyr1[] = +{ + 0, 46, 47, 48, 48, 49, 49, 49, 49, 49, + 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, + 49, 49, 49, 49, 49, 49, 50, 50, 50, 50, + 50, 50, 52, 51, 53, 51, 51, 54, 55, 55, + 55, 56, 56, 57, 57, 58, 58, 58, 58, 58, + 59, 59, 60, 60, 61, 61, 61, 61, 63, 62, + 64, 64, 65, 65, 65, 65, 65, 65, 66, 66, + 67, 68, 69, 70, 70 +}; + +/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ +static const unsigned char yyr2[] = +{ + 0, 2, 4, 0, 2, 1, 1, 1, 3, 1, + 1, 2, 3, 1, 1, 1, 3, 1, 3, 1, + 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, + 2, 2, 0, 3, 0, 3, 3, 3, 1, 1, + 1, 0, 1, 1, 2, 1, 1, 2, 2, 3, + 1, 2, 1, 2, 1, 1, 2, 1, 0, 3, + 1, 3, 0, 2, 2, 3, 3, 3, 1, 1, + 1, 1, 1, 0, 2 +}; + +/* 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 unsigned char yydefact[] = +{ + 3, 0, 0, 1, 34, 32, 0, 0, 0, 29, + 38, 39, 40, 7, 0, 9, 10, 0, 0, 13, + 14, 15, 0, 17, 0, 19, 20, 0, 0, 22, + 23, 24, 25, 0, 6, 4, 5, 27, 26, 41, + 0, 0, 0, 71, 68, 30, 43, 69, 31, 72, + 0, 11, 0, 0, 0, 21, 28, 0, 57, 58, + 55, 0, 52, 54, 42, 0, 45, 46, 50, 35, + 33, 36, 44, 8, 12, 16, 18, 56, 62, 0, + 53, 2, 37, 47, 48, 51, 59, 60, 74, 49, + 62, 0, 0, 0, 70, 63, 64, 61, 65, 66, + 67 +}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yysigned_char yydefgoto[] = +{ + -1, 1, 2, 35, 60, 37, 41, 40, 38, 39, + 65, 45, 68, 69, 61, 62, 63, 78, 86, 87, + 46, 96, 47, 50, 81 +}; + +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +#define YYPACT_NINF -65 +static const yysigned_char yypact[] = +{ + -65, 5, 114, -65, -65, -65, -24, 1, 1, -65, + -65, -65, -65, -65, 10, -65, -65, 11, -23, -65, + -65, -65, -21, -65, -15, -65, -65, 10, 1, -65, + -65, -65, -65, 77, -65, -65, -65, -65, -65, -13, + -34, -34, 1, -65, -65, 1, -65, -65, 1, -65, + 10, -65, 10, 10, 10, -65, -65, -17, -65, -65, + -65, 39, -65, -65, -65, 1, -65, 4, -65, -34, + -34, 1, -65, -65, -65, -65, -65, -65, -65, -20, + -65, -65, 1, 22, -65, -65, -12, 15, -65, -65, + -65, 1, 24, -10, -65, -65, -65, 15, -65, -65, + -65 +}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yysigned_char yypgoto[] = +{ + -65, -65, -65, -65, 30, -65, -65, -65, -65, -65, + -65, -7, -60, -8, -65, -19, -65, -65, -65, -37, + -28, -65, -64, -16, -65 +}; + +/* 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 -74 +static const yysigned_char yytable[] = +{ + 56, 48, 66, 84, 43, 3, 67, 43, 83, 85, + 85, 55, 42, 49, 52, 51, 53, 72, 43, 89, + 72, 77, 54, 64, 88, 43, 100, 90, 99, 91, + 92, 93, 36, 70, 73, 71, 74, 75, 76, -73, + 57, 44, 80, 72, 4, 5, 6, 7, 8, 9, + 10, 11, 12, 97, 72, 44, 0, 0, 82, 95, + 94, 0, 0, 98, 0, 0, 0, 0, 0, 95, + 0, 28, 0, 0, 0, 0, 0, 58, 57, 0, + 59, 79, 4, 5, 6, 7, 8, 9, 10, 11, + 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 28, + 0, 0, 0, 0, 0, 58, 0, 0, 59, 4, + 5, 6, 7, 8, 9, 10, 11, 12, 0, 0, + 0, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, + 0, 0, 32, 0, 0, 0, 33, 34 +}; + +static const yysigned_char yycheck[] = +{ + 28, 8, 36, 67, 3, 0, 40, 3, 4, 69, + 70, 27, 36, 3, 37, 4, 37, 45, 3, 83, + 48, 38, 37, 36, 44, 3, 36, 39, 4, 14, + 15, 16, 2, 41, 50, 42, 52, 53, 54, 0, + 1, 40, 61, 71, 5, 6, 7, 8, 9, 10, + 11, 12, 13, 90, 82, 40, -1, -1, 65, 87, + 45, -1, -1, 91, -1, -1, -1, -1, -1, 97, + -1, 32, -1, -1, -1, -1, -1, 38, 1, -1, + 41, 42, 5, 6, 7, 8, 9, 10, 11, 12, + 13, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, 32, + -1, -1, -1, -1, -1, 38, -1, -1, 41, 5, + 6, 7, 8, 9, 10, 11, 12, 13, -1, -1, + -1, 17, 18, 19, 20, 21, 22, 23, 24, 25, + 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, + -1, -1, 38, -1, -1, -1, 42, 43 +}; + +/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing + symbol of state STATE-NUM. */ +static const unsigned char yystos[] = +{ + 0, 47, 48, 0, 5, 6, 7, 8, 9, 10, + 11, 12, 13, 17, 18, 19, 20, 21, 22, 23, + 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, + 34, 35, 38, 42, 43, 49, 50, 51, 54, 55, + 53, 52, 36, 3, 40, 57, 66, 68, 57, 3, + 69, 4, 37, 37, 37, 69, 66, 1, 38, 41, + 50, 60, 61, 62, 36, 56, 36, 40, 58, 59, + 59, 57, 66, 69, 69, 69, 69, 38, 63, 42, + 61, 70, 57, 4, 68, 58, 64, 65, 44, 68, + 39, 14, 15, 16, 45, 66, 67, 65, 66, 4, + 36 +}; #if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) # define YYSIZE_T __SIZE_TYPE__ @@ -500,29 +649,41 @@ union yyalloc #define yyerrok (yyerrstatus = 0) #define yyclearin (yychar = YYEMPTY) -#define YYEMPTY -2 +#define YYEMPTY (-2) #define YYEOF 0 + #define YYACCEPT goto yyacceptlab -#define YYABORT goto yyabortlab -#define YYERROR goto yyerrlab1 +#define YYABORT goto yyabortlab +#define YYERROR do \ + { \ + yylerrsp = yylsp; \ + *++yylerrsp = yyloc; \ + goto yyerrlab1; \ + } \ + while (0) + + /* 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); \ - yychar1 = YYTRANSLATE (yychar); \ + yytoken = YYTRANSLATE (yychar); \ YYPOPSTACK; \ goto yybackup; \ } \ else \ { \ - yyerror ("syntax error: cannot back up"); \ + yyerror ("syntax error: cannot back up");\ YYERROR; \ } \ while (0) @@ -530,41 +691,24 @@ while (0) #define YYTERROR 1 #define YYERRCODE 256 - /* YYLLOC_DEFAULT -- Compute the default location (before the actions - are run). - - When YYLLOC_DEFAULT is run, CURRENT is set the location of the - first token. By default, to implement support for ranges, extend - its range to the last symbol. */ + are run). */ #ifndef YYLLOC_DEFAULT -# define YYLLOC_DEFAULT(Current, Rhs, N) \ - Current.last_line = Rhs[N].last_line; \ - Current.last_column = Rhs[N].last_column; +# define YYLLOC_DEFAULT(Current, Rhs, N) \ + Current.first_line = Rhs[1].first_line; \ + Current.first_column = Rhs[1].first_column; \ + Current.last_line = Rhs[N].last_line; \ + Current.last_column = Rhs[N].last_column; #endif - /* YYLEX -- calling `yylex' with the right arguments. */ -#if YYPURE -# if YYLSP_NEEDED -# ifdef YYLEX_PARAM -# define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM) -# else -# define YYLEX yylex (&yylval, &yylloc) -# endif -# else /* !YYLSP_NEEDED */ -# ifdef YYLEX_PARAM -# define YYLEX yylex (&yylval, YYLEX_PARAM) -# else -# define YYLEX yylex (&yylval) -# endif -# endif /* !YYLSP_NEEDED */ -#else /* !YYPURE */ -# define YYLEX yylex () -#endif /* !YYPURE */ - +#ifdef YYLEX_PARAM +# define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM) +#else +# define YYLEX yylex (&yylval, &yylloc) +#endif /* Enable debugging if requested. */ #if YYDEBUG @@ -579,13 +723,93 @@ do { \ if (yydebug) \ YYFPRINTF Args; \ } while (0) + +# define YYDSYMPRINT(Args) \ +do { \ + if (yydebug) \ + yysymprint Args; \ +} while (0) + +# define YYDSYMPRINTF(Title, Token, Value, Location) \ +do { \ + if (yydebug) \ + { \ + YYFPRINTF (stderr, "%s ", Title); \ + yysymprint (stderr, \ + Token, Value, Location); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (0) + +/*------------------------------------------------------------------. +| yy_stack_print -- Print the state stack from its BOTTOM up to its | +| TOP (cinluded). | +`------------------------------------------------------------------*/ + +#if defined (__STDC__) || defined (__cplusplus) +static void +yy_stack_print (short *bottom, short *top) +#else +static void +yy_stack_print (bottom, top) + short *bottom; + short *top; +#endif +{ + 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. | +`------------------------------------------------*/ + +#if defined (__STDC__) || defined (__cplusplus) +static void +yy_reduce_print (int yyrule) +#else +static void +yy_reduce_print (yyrule) + int yyrule; +#endif +{ + int yyi; + unsigned int yylno = yyrline[yyrule]; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ", + 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 YYDSYMPRINT(Args) +# define YYDSYMPRINTF(Title, Token, 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 200 @@ -605,8 +829,10 @@ int yydebug; #ifndef YYMAXDEPTH # define YYMAXDEPTH 10000 #endif + -#ifdef YYERROR_VERBOSE + +#if YYERROR_VERBOSE # ifndef yystrlen # if defined (__GLIBC__) && defined (_STRING_H) @@ -656,78 +882,132 @@ yystpcpy (yydest, yysrc) } # endif # endif -#endif + +#endif /* !YYERROR_VERBOSE */ + -#line 315 "/usr/share/bison/bison.simple" +#if YYDEBUG +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +#if defined (__STDC__) || defined (__cplusplus) +static void +yysymprint (FILE *yyoutput, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp) +#else +static void +yysymprint (yyoutput, yytype, yyvaluep, yylocationp) + FILE *yyoutput; + int yytype; + YYSTYPE *yyvaluep; + YYLTYPE *yylocationp; +#endif +{ + /* Pacify ``unused variable'' warnings. */ + (void) yyvaluep; + (void) yylocationp; + + if (yytype < YYNTOKENS) + { + YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); +# ifdef YYPRINT + YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); +# endif + } + else + YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); + + switch (yytype) + { + default: + break; + } + YYFPRINTF (yyoutput, ")"); +} + +#endif /* ! YYDEBUG */ +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ -/* The user can define YYPARSE_PARAM as the name of an argument to be passed - into yyparse. The argument should have type void *. - It should actually point to an object. - Grammar actions can access the variable by casting it - to the proper pointer type. */ +#if defined (__STDC__) || defined (__cplusplus) +static void +yydestruct (int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp) +#else +static void +yydestruct (yytype, yyvaluep, yylocationp) + int yytype; + YYSTYPE *yyvaluep; + YYLTYPE *yylocationp; +#endif +{ + /* Pacify ``unused variable'' warnings. */ + (void) yyvaluep; + (void) yylocationp; + + switch (yytype) + { + + default: + break; + } +} + + +/* Prevent warnings from -Wmissing-prototypes. */ #ifdef YYPARSE_PARAM # if defined (__STDC__) || defined (__cplusplus) -# define YYPARSE_PARAM_ARG void *YYPARSE_PARAM -# define YYPARSE_PARAM_DECL +int yyparse (void *YYPARSE_PARAM); # else -# define YYPARSE_PARAM_ARG YYPARSE_PARAM -# define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; +int yyparse (); # endif -#else /* !YYPARSE_PARAM */ -# define YYPARSE_PARAM_ARG -# define YYPARSE_PARAM_DECL -#endif /* !YYPARSE_PARAM */ - -/* Prevent warning if -Wstrict-prototypes. */ -#ifdef __GNUC__ -# ifdef YYPARSE_PARAM -int yyparse (void *); -# else +#else /* ! YYPARSE_PARAM */ +#if defined (__STDC__) || defined (__cplusplus) int yyparse (void); -# endif +#else +int yyparse (); #endif +#endif /* ! YYPARSE_PARAM */ -/* YY_DECL_VARIABLES -- depending whether we use a pure parser, - variables are global, or local to YYPARSE. */ - -#define YY_DECL_NON_LSP_VARIABLES \ -/* The lookahead symbol. */ \ -int yychar; \ - \ -/* The semantic value of the lookahead symbol. */ \ -YYSTYPE yylval; \ - \ -/* Number of parse errors so far. */ \ -int yynerrs; -#if YYLSP_NEEDED -# define YY_DECL_VARIABLES \ -YY_DECL_NON_LSP_VARIABLES \ - \ -/* Location data for the lookahead symbol. */ \ -YYLTYPE yylloc; -#else -# define YY_DECL_VARIABLES \ -YY_DECL_NON_LSP_VARIABLES -#endif -/* If nonreentrant, generate the variables here. */ -#if !YYPURE -YY_DECL_VARIABLES -#endif /* !YYPURE */ +/*----------. +| 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 */ +#if defined (__STDC__) || defined (__cplusplus) int -yyparse (YYPARSE_PARAM_ARG) - YYPARSE_PARAM_DECL +yyparse (void) +#else +int +yyparse () + +#endif +#endif { - /* If reentrant, generate the variables here. */ -#if YYPURE - YY_DECL_VARIABLES -#endif /* !YYPURE */ + /* The lookahead symbol. */ +int yychar; + +/* The semantic value of the lookahead symbol. */ +YYSTYPE yylval; + +/* Number of syntax errors so far. */ +int yynerrs; +/* Location data for the lookahead symbol. */ +YYLTYPE yylloc; register int yystate; register int yyn; @@ -735,7 +1015,7 @@ yyparse (YYPARSE_PARAM_ARG) /* Number of tokens to shift before error messages enabled. */ int yyerrstatus; /* Lookahead token as an internal (translated) token number. */ - int yychar1 = 0; + int yytoken = 0; /* Three stacks and their tools: `yyss': related to states, @@ -745,7 +1025,7 @@ yyparse (YYPARSE_PARAM_ARG) Refer to the stacks thru separate pointers, to allow yyoverflow to reallocate them elsewhere. */ - /* The state stack. */ + /* The state stack. */ short yyssa[YYINITDEPTH]; short *yyss = yyssa; register short *yyssp; @@ -755,31 +1035,23 @@ yyparse (YYPARSE_PARAM_ARG) YYSTYPE *yyvs = yyvsa; register YYSTYPE *yyvsp; -#if YYLSP_NEEDED /* The location stack. */ YYLTYPE yylsa[YYINITDEPTH]; YYLTYPE *yyls = yylsa; YYLTYPE *yylsp; -#endif + YYLTYPE *yylerrsp; -#if YYLSP_NEEDED -# define YYPOPSTACK (yyvsp--, yyssp--, yylsp--) -#else -# define YYPOPSTACK (yyvsp--, yyssp--) -#endif +#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--) YYSIZE_T yystacksize = YYINITDEPTH; - /* The variables used to return semantic value and location from the action routines. */ YYSTYPE yyval; -#if YYLSP_NEEDED YYLTYPE yyloc; -#endif /* When reducing, the number of symbols on the RHS of the reduced - rule. */ + rule. */ int yylen; YYDPRINTF ((stderr, "Starting parse\n")); @@ -796,9 +1068,7 @@ yyparse (YYPARSE_PARAM_ARG) yyssp = yyss; yyvsp = yyvs; -#if YYLSP_NEEDED yylsp = yyls; -#endif goto yysetstate; /*------------------------------------------------------------. @@ -813,7 +1083,7 @@ yyparse (YYPARSE_PARAM_ARG) yysetstate: *yyssp = yystate; - if (yyssp >= yyss + yystacksize - 1) + if (yyss + yystacksize - 1 <= yyssp) { /* Get the current used size of the three stacks, in elements. */ YYSIZE_T yysize = yyssp - yyss + 1; @@ -825,25 +1095,18 @@ yyparse (YYPARSE_PARAM_ARG) memory. */ YYSTYPE *yyvs1 = yyvs; short *yyss1 = yyss; + YYLTYPE *yyls1 = yyls; /* Each stack pointer address is followed by the size of the - data in use in that stack, in bytes. */ -# if YYLSP_NEEDED - YYLTYPE *yyls1 = yyls; - /* This used to be a conditional around just the two extra args, - but that might be undefined if yyoverflow is a macro. */ + 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 ("parser stack overflow", &yyss1, yysize * sizeof (*yyssp), &yyvs1, yysize * sizeof (*yyvsp), &yyls1, yysize * sizeof (*yylsp), &yystacksize); yyls = yyls1; -# else - yyoverflow ("parser stack overflow", - &yyss1, yysize * sizeof (*yyssp), - &yyvs1, yysize * sizeof (*yyvsp), - &yystacksize); -# endif yyss = yyss1; yyvs = yyvs1; } @@ -852,10 +1115,10 @@ yyparse (YYPARSE_PARAM_ARG) goto yyoverflowlab; # else /* Extend the stack our own way. */ - if (yystacksize >= YYMAXDEPTH) + if (YYMAXDEPTH <= yystacksize) goto yyoverflowlab; yystacksize *= 2; - if (yystacksize > YYMAXDEPTH) + if (YYMAXDEPTH < yystacksize) yystacksize = YYMAXDEPTH; { @@ -866,10 +1129,8 @@ yyparse (YYPARSE_PARAM_ARG) goto yyoverflowlab; YYSTACK_RELOCATE (yyss); YYSTACK_RELOCATE (yyvs); -# if YYLSP_NEEDED YYSTACK_RELOCATE (yyls); -# endif -# undef YYSTACK_RELOCATE +# undef YYSTACK_RELOCATE if (yyss1 != yyssa) YYSTACK_FREE (yyss1); } @@ -878,14 +1139,12 @@ yyparse (YYPARSE_PARAM_ARG) yyssp = yyss + yysize - 1; yyvsp = yyvs + yysize - 1; -#if YYLSP_NEEDED yylsp = yyls + yysize - 1; -#endif YYDPRINTF ((stderr, "Stack size increased to %lu\n", (unsigned long int) yystacksize)); - if (yyssp >= yyss + yystacksize - 1) + if (yyss + yystacksize - 1 <= yyssp) YYABORT; } @@ -893,7 +1152,6 @@ yyparse (YYPARSE_PARAM_ARG) goto yybackup; - /*-----------. | yybackup. | `-----------*/ @@ -906,88 +1164,55 @@ yybackup: /* First try to decide what to do without reference to lookahead token. */ yyn = yypact[yystate]; - if (yyn == YYFLAG) + if (yyn == YYPACT_NINF) goto yydefault; /* Not known => get a lookahead token if don't already have one. */ - /* yychar is either YYEMPTY or YYEOF - or a valid token in external form. */ - + /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ if (yychar == YYEMPTY) { YYDPRINTF ((stderr, "Reading a token: ")); yychar = YYLEX; } - /* Convert token to internal form (in yychar1) for indexing tables with */ - - if (yychar <= 0) /* This means end of input. */ + if (yychar <= YYEOF) { - yychar1 = 0; - yychar = YYEOF; /* Don't call YYLEX any more */ - + yychar = yytoken = YYEOF; YYDPRINTF ((stderr, "Now at end of input.\n")); } else { - yychar1 = YYTRANSLATE (yychar); - -#if YYDEBUG - /* We have to keep this `#if YYDEBUG', since we use variables - which are defined only if `YYDEBUG' is set. */ - if (yydebug) - { - YYFPRINTF (stderr, "Next token is %d (%s", - yychar, yytname[yychar1]); - /* Give the individual parser a way to print the precise - meaning of a token, for further debugging info. */ -# ifdef YYPRINT - YYPRINT (stderr, yychar, yylval); -# endif - YYFPRINTF (stderr, ")\n"); - } -#endif + yytoken = YYTRANSLATE (yychar); + YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc); } - yyn += yychar1; - if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1) + /* 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]; - - /* yyn is what to do for this token type in this state. - Negative => reduce, -yyn is rule number. - Positive => shift, yyn is new state. - New state is final state => don't bother to shift, - just return success. - 0, or most negative number => error. */ - - if (yyn < 0) + if (yyn <= 0) { - if (yyn == YYFLAG) + if (yyn == 0 || yyn == YYTABLE_NINF) goto yyerrlab; yyn = -yyn; goto yyreduce; } - else if (yyn == 0) - goto yyerrlab; if (yyn == YYFINAL) YYACCEPT; /* Shift the lookahead token. */ - YYDPRINTF ((stderr, "Shifting token %d (%s), ", - yychar, yytname[yychar1])); + YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken])); /* Discard the token being shifted unless it is eof. */ if (yychar != YYEOF) yychar = YYEMPTY; *++yyvsp = yylval; -#if YYLSP_NEEDED *++yylsp = yylloc; -#endif /* Count tokens shifted since error; after three, turn off error status. */ @@ -1018,358 +1243,391 @@ yyreduce: /* If YYLEN is nonzero, implement the default value of the action: `$$ = $1'. - Otherwise, the following line sets YYVAL to the semantic value of - the lookahead token. This behavior is undocumented and Bison + 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]; -#if YYLSP_NEEDED - /* Similarly for the default location. Let the user run additional - commands if for instance locations are ranges. */ - yyloc = yylsp[1-yylen]; + /* Default location. */ YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen); -#endif - -#if YYDEBUG - /* We have to keep this `#if YYDEBUG', since we use variables which - are defined only if `YYDEBUG' is set. */ - if (yydebug) + YY_REDUCE_PRINT (yyn); + switch (yyn) { - int yyi; - - YYFPRINTF (stderr, "Reducing via rule %d (line %d), ", - yyn, yyrline[yyn]); - - /* Print the symbols being reduced, and their result. */ - for (yyi = yyprhs[yyn]; yyrhs[yyi] > 0; yyi++) - YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]); - YYFPRINTF (stderr, " -> %s\n", yytname[yyr1[yyn]]); - } -#endif + case 6: +#line 176 "parse-gram.y" + { prologue_augment (yyvsp[0].chars, yylsp[0]); } + break; - switch (yyn) { + case 7: +#line 177 "parse-gram.y" + { debug_flag = 1; } + break; -case 1: -#line 132 "parse-gram.y" -{ LOCATION_RESET (yylloc); } + case 8: +#line 178 "parse-gram.y" + { muscle_insert (yyvsp[-1].chars, yyvsp[0].chars); } break; -case 2: -#line 134 "parse-gram.y" -{ - yycontrol->errcode = 0; - epilogue_set (yyvsp[0].string, yylsp[0]); - } + + case 9: +#line 179 "parse-gram.y" + { defines_flag = 1; } break; -case 6: -#line 148 "parse-gram.y" -{ - prologue_augment (yyvsp[0].string, yylsp[0]); - } + + case 10: +#line 180 "parse-gram.y" + { error_verbose = 1; } break; -case 7: -#line 151 "parse-gram.y" -{ debug_flag = 1; } + + case 11: +#line 181 "parse-gram.y" + { expected_conflicts = yyvsp[0].integer; } break; -case 8: -#line 152 "parse-gram.y" -{ muscle_insert (yyvsp[-1].string, yyvsp[0].string); } + + case 12: +#line 182 "parse-gram.y" + { spec_file_prefix = yyvsp[0].chars; } break; -case 9: -#line 153 "parse-gram.y" -{ defines_flag = 1; } + + case 13: +#line 183 "parse-gram.y" + { glr_parser = 1; } break; -case 10: -#line 154 "parse-gram.y" -{ error_verbose = 1; } + + case 14: +#line 184 "parse-gram.y" + { add_param ("lex_param", yyvsp[0].chars, yylsp[0]); } break; -case 11: -#line 155 "parse-gram.y" -{ expected_conflicts = yyvsp[0].integer; } + + case 15: +#line 185 "parse-gram.y" + { locations_flag = 1; } break; -case 12: -#line 156 "parse-gram.y" -{ spec_file_prefix = yyvsp[0].string; } + + case 16: +#line 186 "parse-gram.y" + { spec_name_prefix = yyvsp[0].chars; } break; -case 13: -#line 157 "parse-gram.y" -{ locations_flag = 1; } + + case 17: +#line 187 "parse-gram.y" + { no_lines_flag = 1; } break; -case 14: -#line 158 "parse-gram.y" -{ spec_name_prefix = yyvsp[0].string; } + + case 18: +#line 188 "parse-gram.y" + { spec_outfile = yyvsp[0].chars; } break; -case 15: -#line 159 "parse-gram.y" -{ no_lines_flag = 1; } + + case 19: +#line 189 "parse-gram.y" + { add_param ("parse_param", yyvsp[0].chars, yylsp[0]); } break; -case 16: -#line 160 "parse-gram.y" -{ spec_outfile = yyvsp[0].string; } + + case 20: +#line 190 "parse-gram.y" + { pure_parser = 1; } break; -case 17: -#line 161 "parse-gram.y" -{ pure_parser = 1; } + + case 21: +#line 191 "parse-gram.y" + { skeleton = yyvsp[0].chars; } break; -case 18: -#line 162 "parse-gram.y" -{ skeleton = yyvsp[0].string; } + + case 22: +#line 192 "parse-gram.y" + { token_table_flag = 1; } break; -case 19: -#line 163 "parse-gram.y" -{ token_table_flag = 1; } + + case 23: +#line 193 "parse-gram.y" + { report_flag = report_states; } break; -case 20: -#line 164 "parse-gram.y" -{ report_flag = 1; } + + case 24: +#line 194 "parse-gram.y" + { yacc_flag = 1; } break; -case 21: -#line 165 "parse-gram.y" -{ yacc_flag = 1; } + + case 28: +#line 202 "parse-gram.y" + { + grammar_start_symbol_set (yyvsp[0].symbol, yylsp[0]); + } break; -case 23: -#line 170 "parse-gram.y" -{ current_class = nterm_sym; } + + case 29: +#line 206 "parse-gram.y" + { + typed = 1; + MUSCLE_INSERT_INT ("stype_line", yylsp[0].start.line); + muscle_insert ("stype", yyvsp[0].chars); + } break; -case 24: -#line 171 "parse-gram.y" -{ - current_class = unknown_sym; - current_type = NULL; + + case 30: +#line 212 "parse-gram.y" + { + symbol_list *list; + for (list = yyvsp[0].list; list; list = list->next) + symbol_destructor_set (list->sym, yyvsp[-1].chars, yylsp[-1]); + symbol_list_free (yyvsp[0].list); } break; -case 25: -#line 176 "parse-gram.y" -{ - grammar_start_symbol_set (yyvsp[0].symbol); + + case 31: +#line 219 "parse-gram.y" + { + symbol_list *list; + for (list = yyvsp[0].list; list; list = list->next) + symbol_printer_set (list->sym, yyvsp[-1].chars, list->location); + symbol_list_free (yyvsp[0].list); } break; -case 26: -#line 179 "parse-gram.y" -{ current_class = token_sym; } + + case 32: +#line 228 "parse-gram.y" + { current_class = nterm_sym; } break; -case 27: -#line 180 "parse-gram.y" -{ + + case 33: +#line 229 "parse-gram.y" + { current_class = unknown_sym; current_type = NULL; } break; -case 28: -#line 184 "parse-gram.y" -{current_type = yyvsp[0].string; } + + case 34: +#line 233 "parse-gram.y" + { current_class = token_sym; } break; -case 29: -#line 185 "parse-gram.y" -{ + + case 35: +#line 234 "parse-gram.y" + { + current_class = unknown_sym; current_type = NULL; } break; -case 30: -#line 189 "parse-gram.y" -{ - typed = 1; - MUSCLE_INSERT_INT ("stype_line", yylsp[-1].first_line); - muscle_insert ("stype", yyvsp[-1].string); + + case 36: +#line 239 "parse-gram.y" + { + symbol_list *list; + for (list = yyvsp[0].list; list; list = list->next) + symbol_type_set (list->sym, yyvsp[-1].uniqstr, yylsp[-1]); + symbol_list_free (yyvsp[0].list); } break; -case 31: -#line 198 "parse-gram.y" -{ current_assoc = yyvsp[-1].assoc; ++current_prec; } - break; -case 32: -#line 200 "parse-gram.y" -{ current_assoc = non_assoc; current_type = NULL; } - break; -case 33: -#line 204 "parse-gram.y" -{ yyval.assoc = left_assoc; } - break; -case 34: -#line 205 "parse-gram.y" -{ yyval.assoc = right_assoc; } + + case 37: +#line 249 "parse-gram.y" + { + symbol_list *list; + ++current_prec; + for (list = yyvsp[0].list; list; list = list->next) + { + symbol_type_set (list->sym, current_type, yylsp[-1]); + symbol_precedence_set (list->sym, current_prec, yyvsp[-2].assoc, yylsp[-2]); + } + symbol_list_free (yyvsp[0].list); + current_type = NULL; + } break; -case 35: -#line 206 "parse-gram.y" -{ yyval.assoc = non_assoc; } + + case 38: +#line 263 "parse-gram.y" + { yyval.assoc = left_assoc; } break; -case 36: -#line 210 "parse-gram.y" -{ current_type = NULL;} + + case 39: +#line 264 "parse-gram.y" + { yyval.assoc = right_assoc; } break; -case 37: -#line 211 "parse-gram.y" -{ current_type = yyvsp[0].string; } + + case 40: +#line 265 "parse-gram.y" + { yyval.assoc = non_assoc; } break; -case 38: -#line 216 "parse-gram.y" -{ symbol_type_set (yyvsp[0].symbol, current_type); } + + case 41: +#line 269 "parse-gram.y" + { current_type = NULL; } break; -case 39: -#line 217 "parse-gram.y" -{ symbol_type_set (yyvsp[0].symbol, current_type); } + + case 42: +#line 270 "parse-gram.y" + { current_type = yyvsp[0].uniqstr; } break; -case 40: -#line 223 "parse-gram.y" -{ - symbol_type_set (yyvsp[0].symbol, current_type); - symbol_precedence_set (yyvsp[0].symbol, current_prec, current_assoc); - } + + case 43: +#line 276 "parse-gram.y" + { yyval.list = symbol_list_new (yyvsp[0].symbol, yylsp[0]); } break; -case 41: -#line 228 "parse-gram.y" -{ - symbol_type_set (yyvsp[0].symbol, current_type); - symbol_precedence_set (yyvsp[0].symbol, current_prec, current_assoc); - } + + case 44: +#line 277 "parse-gram.y" + { yyval.list = symbol_list_prepend (yyvsp[-1].list, yyvsp[0].symbol, yylsp[0]); } break; -case 42: -#line 238 "parse-gram.y" -{ - current_type = yyvsp[0].string; + + case 45: +#line 283 "parse-gram.y" + { + current_type = yyvsp[0].uniqstr; } break; -case 43: -#line 242 "parse-gram.y" -{ - symbol_class_set (yyvsp[0].symbol, current_class); - symbol_type_set (yyvsp[0].symbol, current_type); + + case 46: +#line 287 "parse-gram.y" + { + symbol_class_set (yyvsp[0].symbol, current_class, yylsp[0]); + symbol_type_set (yyvsp[0].symbol, current_type, yylsp[0]); } break; -case 44: -#line 247 "parse-gram.y" -{ - symbol_class_set (yyvsp[-1].symbol, current_class); - symbol_type_set (yyvsp[-1].symbol, current_type); - symbol_user_token_number_set (yyvsp[-1].symbol, yyvsp[0].integer); + + case 47: +#line 292 "parse-gram.y" + { + symbol_class_set (yyvsp[-1].symbol, current_class, yylsp[-1]); + symbol_type_set (yyvsp[-1].symbol, current_type, yylsp[-1]); + symbol_user_token_number_set (yyvsp[-1].symbol, yyvsp[0].integer, yylsp[0]); } break; -case 45: -#line 253 "parse-gram.y" -{ - symbol_class_set (yyvsp[-1].symbol, current_class); - symbol_type_set (yyvsp[-1].symbol, current_type); - symbol_make_alias (yyvsp[-1].symbol, yyvsp[0].symbol); + + case 48: +#line 298 "parse-gram.y" + { + symbol_class_set (yyvsp[-1].symbol, current_class, yylsp[-1]); + symbol_type_set (yyvsp[-1].symbol, current_type, yylsp[-1]); + symbol_make_alias (yyvsp[-1].symbol, yyvsp[0].symbol, yyloc); } break; -case 46: -#line 259 "parse-gram.y" -{ - symbol_class_set (yyvsp[-2].symbol, current_class); - symbol_type_set (yyvsp[-2].symbol, current_type); - symbol_user_token_number_set (yyvsp[-2].symbol, yyvsp[-1].integer); - symbol_make_alias (yyvsp[-2].symbol, yyvsp[0].symbol); + + case 49: +#line 304 "parse-gram.y" + { + symbol_class_set (yyvsp[-2].symbol, current_class, yylsp[-2]); + symbol_type_set (yyvsp[-2].symbol, current_type, yylsp[-2]); + symbol_user_token_number_set (yyvsp[-2].symbol, yyvsp[-1].integer, yylsp[-1]); + symbol_make_alias (yyvsp[-2].symbol, yyvsp[0].symbol, yyloc); } break; -case 47: -#line 270 "parse-gram.y" -{;} - break; -case 48: -#line 272 "parse-gram.y" -{;} + + case 55: +#line 333 "parse-gram.y" + { + if (yacc_flag) + complain_at (yyloc, _("POSIX forbids declarations in the grammar")); + } break; -case 51: -#line 281 "parse-gram.y" -{ current_lhs = yyvsp[-1].symbol; } + + case 56: +#line 338 "parse-gram.y" + { + yyerrok; + } break; -case 52: -#line 282 "parse-gram.y" -{;} + + case 58: +#line 345 "parse-gram.y" + { current_lhs = yyvsp[0].symbol; current_lhs_location = yylsp[0]; } break; -case 53: -#line 286 "parse-gram.y" -{ grammar_rule_end (); } + + case 60: +#line 349 "parse-gram.y" + { grammar_rule_end (yylsp[0]); } break; -case 54: -#line 287 "parse-gram.y" -{ grammar_rule_end (); } + + case 61: +#line 350 "parse-gram.y" + { grammar_rule_end (yylsp[0]); } break; -case 55: -#line 292 "parse-gram.y" -{ grammar_rule_begin (current_lhs); } + + case 62: +#line 355 "parse-gram.y" + { grammar_rule_begin (current_lhs, current_lhs_location); } break; -case 56: -#line 294 "parse-gram.y" -{ grammar_current_rule_symbol_append (yyvsp[0].symbol); } + + case 63: +#line 357 "parse-gram.y" + { grammar_current_rule_symbol_append (yyvsp[0].symbol, yylsp[0]); } break; -case 57: -#line 296 "parse-gram.y" -{ grammar_current_rule_action_append (yyvsp[0].string, yylsp[0].first_line); } + + case 64: +#line 359 "parse-gram.y" + { grammar_current_rule_action_append (yyvsp[0].chars, yylsp[0]); } break; -case 58: -#line 298 "parse-gram.y" -{ grammar_current_rule_prec_set (yyvsp[0].symbol); } + + case 65: +#line 361 "parse-gram.y" + { grammar_current_rule_prec_set (yyvsp[0].symbol, yylsp[0]); } break; -case 59: -#line 302 "parse-gram.y" -{ yyval.symbol = yyvsp[0].symbol; } + + case 66: +#line 363 "parse-gram.y" + { grammar_current_rule_dprec_set (yyvsp[0].integer, yylsp[0]); } break; -case 60: -#line 303 "parse-gram.y" -{ yyval.symbol = yyvsp[0].symbol; } + + case 67: +#line 365 "parse-gram.y" + { grammar_current_rule_merge_set (yyvsp[0].uniqstr, yylsp[0]); } break; -case 61: -#line 304 "parse-gram.y" -{ yyval.symbol = getsym (yyvsp[0].string); } + + case 68: +#line 369 "parse-gram.y" + { yyval.symbol = yyvsp[0].symbol; } break; -case 62: -#line 309 "parse-gram.y" -{ yyval.string = yyvsp[0].string; } + + case 69: +#line 370 "parse-gram.y" + { yyval.symbol = yyvsp[0].symbol; } break; -case 63: -#line 315 "parse-gram.y" -{ - yyval.symbol = getsym (yyvsp[0].string); - symbol_class_set (yyval.symbol, token_sym); - } + + case 70: +#line 375 "parse-gram.y" + { yyval.chars = yyvsp[0].chars; } break; -case 64: -#line 324 "parse-gram.y" -{ - yyval.string = yyvsp[0].string + 1; - yyval.string[strlen (yyval.string) - 1] = '\0'; + + case 71: +#line 381 "parse-gram.y" + { + yyval.symbol = symbol_get (yyvsp[0].chars, yylsp[0]); + symbol_class_set (yyval.symbol, token_sym, yylsp[0]); } break; -case 65: -#line 332 "parse-gram.y" -{ - yyval.string = xstrdup (""); + + case 72: +#line 390 "parse-gram.y" + { + yyval.chars = yyvsp[0].chars + 1; + yyval.chars[strlen (yyval.chars) - 1] = '\0'; } break; -case 66: -#line 336 "parse-gram.y" -{ - yyval.string = yyvsp[0].string; + + case 74: +#line 399 "parse-gram.y" + { + epilogue_augment (yyvsp[0].chars, yylsp[0]); + scanner_last_string_free (); } break; -} -#line 705 "/usr/share/bison/bison.simple" + } + +/* Line 999 of yacc.c. */ +#line 1622 "parse-gram.c" yyvsp -= yylen; yyssp -= yylen; -#if YYLSP_NEEDED yylsp -= yylen; -#endif -#if YYDEBUG - if (yydebug) - { - short *yyssp1 = yyss - 1; - YYFPRINTF (stderr, "state stack now"); - while (yyssp1 != yyssp) - YYFPRINTF (stderr, " %d", *++yyssp1); - YYFPRINTF (stderr, "\n"); - } -#endif + YY_STACK_PRINT (yyss, yyssp); *++yyvsp = yyval; -#if YYLSP_NEEDED *++yylsp = yyloc; -#endif /* Now `shift' the result of the reduction. Determine what state that goes to, based on the state we popped back to and the rule @@ -1377,11 +1635,11 @@ case 66: yyn = yyr1[yyn]; - yystate = yypgoto[yyn - YYNTBASE] + *yyssp; - if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) + yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; + if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) yystate = yytable[yystate]; else - yystate = yydefgoto[yyn - YYNTBASE]; + yystate = yydefgoto[yyn - YYNTOKENS]; goto yynewstate; @@ -1394,38 +1652,53 @@ yyerrlab: if (!yyerrstatus) { ++yynerrs; - -#ifdef YYERROR_VERBOSE +#if YYERROR_VERBOSE yyn = yypact[yystate]; - if (yyn > YYFLAG && yyn < YYLAST) + if (YYPACT_NINF < yyn && yyn < YYLAST) { YYSIZE_T yysize = 0; + int yytype = YYTRANSLATE (yychar); char *yymsg; - int yyx, yycount; + int yyx; - yycount = 0; /* Start YYX at -YYN if negative to avoid negative indexes in YYCHECK. */ - for (yyx = yyn < 0 ? -yyn : 0; - yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) - if (yycheck[yyx + yyn] == yyx) - yysize += yystrlen (yytname[yyx]) + 15, yycount++; - yysize += yystrlen ("parse error, unexpected ") + 1; - yysize += yystrlen (yytname[YYTRANSLATE (yychar)]); + int yyxbase = yyn < 0 ? -yyn : 0; + + /* Stay within bounds of both yycheck and yytname. */ + int yychecklim = YYLAST - yyn; + int yynsyms = sizeof (yytname) / sizeof (yytname[0]); + int yyxlim = yychecklim < yynsyms ? yychecklim : yynsyms; + int yycount = 0; + + for (yyx = yyxbase; yyx < yyxlim; yyx++) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) + { + yysize += (! yycount + ? sizeof (", expecting ") - 1 + : sizeof (" or ") - 1); + yysize += yystrlen (yytname[yyx]); + yycount++; + if (yycount == 5) + { + yysize = 0; + break; + } + } + yysize += (sizeof ("syntax error, unexpected ") + + yystrlen (yytname[yytype])); yymsg = (char *) YYSTACK_ALLOC (yysize); if (yymsg != 0) { - char *yyp = yystpcpy (yymsg, "parse error, unexpected "); - yyp = yystpcpy (yyp, yytname[YYTRANSLATE (yychar)]); + char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); + yyp = yystpcpy (yyp, yytname[yytype]); if (yycount < 5) { yycount = 0; - for (yyx = yyn < 0 ? -yyn : 0; - yyx < (int) (sizeof (yytname) / sizeof (char *)); - yyx++) - if (yycheck[yyx + yyn] == yyx) + for (yyx = yyxbase; yyx < yyxlim; yyx++) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) { const char *yyq = ! yycount ? ", expecting " : " or "; yyp = yystpcpy (yyp, yyq); @@ -1437,102 +1710,77 @@ yyerrlab: YYSTACK_FREE (yymsg); } else - yyerror ("parse error; also virtual memory exhausted"); + yyerror ("syntax error; also virtual memory exhausted"); } else -#endif /* defined (YYERROR_VERBOSE) */ - yyerror ("parse error"); +#endif /* YYERROR_VERBOSE */ + yyerror ("syntax error"); } - goto yyerrlab1; + yylerrsp = yylsp; -/*--------------------------------------------------. -| yyerrlab1 -- error raised explicitly by an action | -`--------------------------------------------------*/ -yyerrlab1: if (yyerrstatus == 3) { /* If just tried and failed to reuse lookahead token after an error, discard it. */ - /* return failure if at end of input */ + /* Return failure if at end of input. */ if (yychar == YYEOF) - YYABORT; - YYDPRINTF ((stderr, "Discarding token %d (%s).\n", - yychar, yytname[yychar1])); + { + /* Pop the error token. */ + YYPOPSTACK; + /* Pop the rest of the stack. */ + while (yyss < yyssp) + { + YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp); + yydestruct (yystos[*yyssp], yyvsp, yylsp); + YYPOPSTACK; + } + YYABORT; + } + + YYDSYMPRINTF ("Error: discarding", yytoken, &yylval, &yylloc); + yydestruct (yytoken, &yylval, &yylloc); yychar = YYEMPTY; + *++yylerrsp = yylloc; } /* Else will try to reuse lookahead token after shifting the error token. */ - - yyerrstatus = 3; /* Each real token shifted decrements this */ - - goto yyerrhandle; - - -/*-------------------------------------------------------------------. -| yyerrdefault -- current state does not do anything special for the | -| error token. | -`-------------------------------------------------------------------*/ -yyerrdefault: -#if 0 - /* This is wrong; only states that explicitly want error tokens - should shift them. */ - - /* If its default is to accept any token, ok. Otherwise pop it. */ - yyn = yydefact[yystate]; - if (yyn) - goto yydefault; -#endif + goto yyerrlab1; -/*---------------------------------------------------------------. -| yyerrpop -- pop the current state because it cannot handle the | -| error token | -`---------------------------------------------------------------*/ -yyerrpop: - if (yyssp == yyss) - YYABORT; - yyvsp--; - yystate = *--yyssp; -#if YYLSP_NEEDED - yylsp--; -#endif +/*----------------------------------------------------. +| yyerrlab1 -- error raised explicitly by an action. | +`----------------------------------------------------*/ +yyerrlab1: + yyerrstatus = 3; /* Each real token shifted decrements this. */ -#if YYDEBUG - if (yydebug) + for (;;) { - short *yyssp1 = yyss - 1; - YYFPRINTF (stderr, "Error: state stack now"); - while (yyssp1 != yyssp) - YYFPRINTF (stderr, " %d", *++yyssp1); - YYFPRINTF (stderr, "\n"); - } -#endif - -/*--------------. -| yyerrhandle. | -`--------------*/ -yyerrhandle: - yyn = yypact[yystate]; - if (yyn == YYFLAG) - goto yyerrdefault; + yyn = yypact[yystate]; + if (yyn != YYPACT_NINF) + { + yyn += YYTERROR; + if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) + { + yyn = yytable[yyn]; + if (0 < yyn) + break; + } + } - yyn += YYTERROR; - if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR) - goto yyerrdefault; + /* Pop the current state because it cannot handle the error token. */ + if (yyssp == yyss) + YYABORT; - yyn = yytable[yyn]; - if (yyn < 0) - { - if (yyn == YYFLAG) - goto yyerrpop; - yyn = -yyn; - goto yyreduce; + YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp); + yydestruct (yystos[yystate], yyvsp, yylsp); + yyvsp--; + yystate = *--yyssp; + yylsp--; + YY_STACK_PRINT (yyss, yyssp); } - else if (yyn == 0) - goto yyerrpop; if (yyn == YYFINAL) YYACCEPT; @@ -1540,9 +1788,8 @@ yyerrhandle: YYDPRINTF ((stderr, "Shifting error token, ")); *++yyvsp = yylval; -#if YYLSP_NEEDED - *++yylsp = yylloc; -#endif + YYLLOC_DEFAULT (yyloc, yylsp, (yylerrsp - yylsp)); + *++yylsp = yyloc; yystate = yyn; goto yynewstate; @@ -1562,13 +1809,15 @@ yyabortlab: yyresult = 1; goto yyreturn; -/*---------------------------------------------. -| yyoverflowab -- parser overflow comes here. | -`---------------------------------------------*/ +#ifndef yyoverflow +/*----------------------------------------------. +| yyoverflowlab -- parser overflow comes here. | +`----------------------------------------------*/ yyoverflowlab: yyerror ("parser stack overflow"); yyresult = 2; /* Fall through. */ +#endif yyreturn: #ifndef yyoverflow @@ -1577,25 +1826,93 @@ yyreturn: #endif return yyresult; } -#line 345 "parse-gram.y" -/*------------------------------------------------------------------. -| When debugging the parser, display tokens' locations and values. | -`------------------------------------------------------------------*/ + +#line 405 "parse-gram.y" + + + +/* Return the location of the left-hand side of a rule whose + right-hand side is RHS[1] ... RHS[N]. Ignore empty nonterminals in + the right-hand side, and return an empty location equal to the end + boundary of RHS[0] if the right-hand side is empty. */ + +static YYLTYPE +lloc_default (YYLTYPE const *rhs, int n) +{ + int i; + YYLTYPE loc; + loc.start = loc.end = rhs[n].end; + + /* Ignore empty nonterminals the start of the the right-hand side. + Do not bother to ignore them at the end of the right-hand side, + since empty nonterminals have the same end as their predecessors. */ + for (i = 1; i <= n; i++) + if (! equal_boundaries (rhs[i].start, rhs[i].end)) + { + loc.start = rhs[i].start; + break; + } + + return loc; +} + + +/* Add a lex-param or a parse-param (depending on TYPE) with + declaration DECL and location LOC. */ static void -yyprint (FILE *file, - const location_t *loc, int type, const yystype *value) +add_param (char const *type, char *decl, location loc) { - fputs (" (", file); - LOCATION_PRINT (file, *loc); - fputs (")", file); - switch (type) + static char const alphanum[] = + "0123456789" + "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "_"; + char const *alpha = alphanum + 10; + char const *name_start = NULL; + char *p; + + for (p = decl; *p; p++) + if ((p == decl || ! strchr (alphanum, p[-1])) && strchr (alpha, p[0])) + name_start = p; + + /* Strip the surrounding '{' and '}'. */ + decl++; + p[-1] = '\0'; + + if (! name_start) + complain_at (loc, _("missing identifier in parameter declaration")); + else { - case CHARACTER: - fprintf (file, " = '%s'", value->string); - break; + char *name; + size_t name_len; + + for (name_len = 1; + name_start[name_len] && strchr (alphanum, name_start[name_len]); + name_len++) + continue; + + name = xmalloc (name_len + 1); + memcpy (name, name_start, name_len); + name[name_len] = '\0'; + muscle_pair_list_grow (type, decl, name); + free (name); + } + + scanner_last_string_free (); +} +/*----------------------------------------------------. +| When debugging the parser, display tokens' values. | +`----------------------------------------------------*/ + +static void +print_token_value (FILE *file, int type, YYSTYPE const *value) +{ + fputc (' ', file); + switch (type) + { case ID: fprintf (file, " = %s", value->symbol->tag); break; @@ -1605,25 +1922,39 @@ yyprint (FILE *file, break; case STRING: - fprintf (file, " = \"%s\"", value->string); + fprintf (file, " = \"%s\"", value->chars); break; case TYPE: - fprintf (file, " = <%s>", value->string); + fprintf (file, " = <%s>", value->uniqstr); break; case BRACED_CODE: + case PERCENT_DESTRUCTOR: + case PERCENT_LEX_PARAM: + case PERCENT_PARSE_PARAM: + case PERCENT_PRINTER: + case PERCENT_UNION: case PROLOGUE: case EPILOGUE: - fprintf (file, " = {{ %s }}", value->string); + fprintf (file, " = {{ %s }}", value->chars); + break; + + default: + fprintf (file, "unknown token type"); break; } } -void -gram_error (gram_control_t *control ATTRIBUTE_UNUSED, - location_t *yylloc, const char *msg) +static void +gram_error (location const *loc, char const *msg) +{ + complain_at (*loc, "%s", msg); +} + +char const * +token_name (int type) { - LOCATION_PRINT (stderr, *yylloc); - fprintf (stderr, ": %s\n", msg); + return yytname[type]; } +