X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/04e606547946d08a252641bc4c49c94a1b6daa8b..163ab32161538e07dc1d52a8948f4ab36ceed161:/src/parse-gram.c diff --git a/src/parse-gram.c b/src/parse-gram.c index 827947e2..0a67cb6f 100644 --- a/src/parse-gram.c +++ b/src/parse-gram.c @@ -1,9 +1,7 @@ -/* A Bison parser, made from parse-gram.y - by GNU bison 1.49b. */ +/* A Bison parser, made by GNU Bison 1.875b. */ -/* Skeleton output parser for Bison, - Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002 Free Software - Foundation, Inc. +/* 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 @@ -25,10 +23,8 @@ 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 original so - called ``semantic'' parser. */ +/* 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 @@ -38,10 +34,13 @@ USER NAME SPACE" below. */ /* Identify Bison output. */ -#define YYBISON 1 +#define YYBISON 1 + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" /* Pure parsers. */ -#define YYPURE 1 +#define YYPURE 1 /* Using locations. */ #define YYLSP_NEEDED 1 @@ -55,159 +54,152 @@ #define yychar gram_char #define yydebug gram_debug #define yynerrs gram_nerrs -#if YYLSP_NEEDED -# define yylloc gram_lloc +#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_NONDETERMINISTIC_PARSER = 283, + PERCENT_OUTPUT = 284, + PERCENT_PARSE_PARAM = 285, + PERCENT_PURE_PARSER = 286, + PERCENT_SKELETON = 287, + PERCENT_START = 288, + PERCENT_TOKEN_TABLE = 289, + PERCENT_VERBOSE = 290, + PERCENT_YACC = 291, + TYPE = 292, + EQUAL = 293, + SEMICOLON = 294, + PIPE = 295, + ID = 296, + ID_COLON = 297, + PERCENT_PERCENT = 298, + PROLOGUE = 299, + EPILOGUE = 300, + BRACED_CODE = 301 + }; #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_NONDETERMINISTIC_PARSER 283 +#define PERCENT_OUTPUT 284 +#define PERCENT_PARSE_PARAM 285 +#define PERCENT_PURE_PARSER 286 +#define PERCENT_SKELETON 287 +#define PERCENT_START 288 +#define PERCENT_TOKEN_TABLE 289 +#define PERCENT_VERBOSE 290 +#define PERCENT_YACC 291 +#define TYPE 292 +#define EQUAL 293 +#define SEMICOLON 294 +#define PIPE 295 +#define ID 296 +#define ID_COLON 297 +#define PERCENT_PERCENT 298 +#define PROLOGUE 299 +#define EPILOGUE 300 +#define BRACED_CODE 301 + + /* Copy the first part of user declarations. */ -#line 31 "parse-gram.y" +#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 -#define YYLLOC_DEFAULT(Current, Rhs, N) \ -do { \ - if (N) \ - { \ - Current.first_column = Rhs[1].first_column; \ - Current.first_line = Rhs[1].first_line; \ - Current.last_column = Rhs[N].last_column; \ - Current.last_line = Rhs[N].last_line; \ - } \ - else \ - { \ - Current = Rhs[0]; \ - } \ -} while (0) -/* 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; -location_t current_lhs_location; -associativity current_assoc; +uniqstr current_type = 0; +symbol *current_lhs; +location current_lhs_location; +assoc current_assoc; int current_prec = 0; -/* Tokens. */ -#ifndef YYTOKENTYPE -# if defined (__STDC__) || defined (__cplusplus) - /* Put the tokens into the symbol table, so that GDB and other debuggers - know about them. */ - enum yytokentype { - GRAM_EOF = 0, - STRING = 258, - CHARACTER = 259, - INT = 260, - PERCENT_TOKEN = 261, - PERCENT_NTERM = 262, - PERCENT_TYPE = 263, - PERCENT_UNION = 264, - PERCENT_LEFT = 265, - PERCENT_RIGHT = 266, - PERCENT_NONASSOC = 267, - PERCENT_EXPECT = 268, - PERCENT_START = 269, - PERCENT_PREC = 270, - PERCENT_VERBOSE = 271, - PERCENT_ERROR_VERBOSE = 272, - PERCENT_OUTPUT = 273, - PERCENT_FILE_PREFIX = 274, - PERCENT_NAME_PREFIX = 275, - PERCENT_DEFINE = 276, - PERCENT_PURE_PARSER = 277, - PERCENT_DEFINES = 278, - PERCENT_YACC = 279, - PERCENT_DEBUG = 280, - PERCENT_LOCATIONS = 281, - PERCENT_NO_LINES = 282, - PERCENT_SKELETON = 283, - PERCENT_TOKEN_TABLE = 284, - TYPE = 285, - EQUAL = 286, - SEMICOLON = 287, - COLON = 288, - PIPE = 289, - ID = 290, - PERCENT_PERCENT = 291, - PROLOGUE = 292, - EPILOGUE = 293, - BRACED_CODE = 294 - }; -# endif - /* POSIX requires `int' for tokens in interfaces. */ -# define YYTOKENTYPE int -#endif /* !YYTOKENTYPE */ -#define GRAM_EOF 0 -#define STRING 258 -#define CHARACTER 259 -#define INT 260 -#define PERCENT_TOKEN 261 -#define PERCENT_NTERM 262 -#define PERCENT_TYPE 263 -#define PERCENT_UNION 264 -#define PERCENT_LEFT 265 -#define PERCENT_RIGHT 266 -#define PERCENT_NONASSOC 267 -#define PERCENT_EXPECT 268 -#define PERCENT_START 269 -#define PERCENT_PREC 270 -#define PERCENT_VERBOSE 271 -#define PERCENT_ERROR_VERBOSE 272 -#define PERCENT_OUTPUT 273 -#define PERCENT_FILE_PREFIX 274 -#define PERCENT_NAME_PREFIX 275 -#define PERCENT_DEFINE 276 -#define PERCENT_PURE_PARSER 277 -#define PERCENT_DEFINES 278 -#define PERCENT_YACC 279 -#define PERCENT_DEBUG 280 -#define PERCENT_LOCATIONS 281 -#define PERCENT_NO_LINES 282 -#define PERCENT_SKELETON 283 -#define PERCENT_TOKEN_TABLE 284 -#define TYPE 285 -#define EQUAL 286 -#define SEMICOLON 287 -#define COLON 288 -#define PIPE 289 -#define ID 290 -#define PERCENT_PERCENT 291 -#define PROLOGUE 292 -#define EPILOGUE 293 -#define BRACED_CODE 294 - - - - /* Enabling traces. */ #ifndef YYDEBUG # define YYDEBUG 1 @@ -221,37 +213,42 @@ int current_prec = 0; # define YYERROR_VERBOSE 0 #endif -#ifndef YYSTYPE -#line 89 "parse-gram.y" -typedef union { - symbol_t *symbol; +#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) +#line 75 "parse-gram.y" +typedef union YYSTYPE { + symbol *symbol; + symbol_list *list; int integer; - char *string; - associativity assoc; -} yystype; -/* Line 199 of /usr/local/share/bison/bison.simple. */ -#line 234 "parse-gram.c" -# define YYSTYPE yystype + char *chars; + assoc assoc; + uniqstr uniqstr; +} YYSTYPE; +/* Line 191 of yacc.c. */ +#line 228 "parse-gram.c" +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 # define YYSTYPE_IS_TRIVIAL 1 #endif -#ifndef YYLTYPE -typedef struct yyltype +#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 +} 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. */ -/* Line 219 of /usr/local/share/bison/bison.simple. */ -#line 255 "parse-gram.c" +/* Line 214 of yacc.c. */ +#line 252 "parse-gram.c" #if ! defined (yyoverflow) || YYERROR_VERBOSE @@ -294,25 +291,17 @@ 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. */ @@ -326,7 +315,7 @@ union yyalloc { \ register YYSIZE_T yyi; \ for (yyi = 0; yyi < (Count); yyi++) \ - (To)[yyi] = (From)[yyi]; \ + (To)[yyi] = (From)[yyi]; \ } \ while (0) # endif @@ -343,33 +332,39 @@ 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 -#define YYFLAG -32768 -#define YYLAST 102 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 147 /* YYNTOKENS -- Number of terminals. */ -#define YYNTOKENS 40 +#define YYNTOKENS 47 /* YYNNTS -- Number of nonterminals. */ -#define YYNNTS 29 +#define YYNNTS 25 /* YYNRULES -- Number of rules. */ -#define YYNRULES 71 +#define YYNRULES 75 /* YYNRULES -- Number of states. */ -#define YYNSTATES 97 +#define YYNSTATES 102 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ #define YYUNDEFTOK 2 -#define YYMAXUTOK 294 +#define YYMAXUTOK 301 -#define YYTRANSLATE(X) \ - ((unsigned)(X) <= YYMAXUTOK ? yytranslate[X] : YYUNDEFTOK) +#define YYTRANSLATE(YYX) \ + ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) /* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ static const unsigned char yytranslate[] = @@ -403,7 +398,8 @@ static const unsigned char yytranslate[] = 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 + 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, + 45, 46 }; #if YYDEBUG @@ -411,50 +407,51 @@ static const unsigned char yytranslate[] = YYRHS. */ static const unsigned char yyprhs[] = { - 0, 0, 3, 8, 9, 13, 15, 17, 19, 23, - 25, 27, 30, 34, 36, 40, 42, 46, 48, 51, - 53, 55, 57, 59, 61, 64, 67, 68, 72, 73, - 77, 78, 83, 84, 89, 91, 93, 95, 96, 98, - 100, 103, 105, 108, 110, 112, 115, 118, 122, 124, - 127, 129, 132, 134, 137, 138, 144, 146, 150, 151, - 154, 157, 161, 163, 165, 167, 169, 171, 173, 174, - 177, 178 + 0, 0, 3, 8, 9, 12, 14, 16, 18, 22, + 24, 26, 29, 33, 35, 37, 39, 43, 45, 47, + 51, 53, 55, 58, 60, 62, 64, 66, 68, 70, + 73, 75, 78, 81, 82, 86, 87, 91, 95, 99, + 101, 103, 105, 106, 108, 110, 113, 115, 117, 120, + 123, 127, 129, 132, 134, 137, 139, 141, 144, 146, + 147, 151, 153, 157, 158, 161, 164, 168, 172, 176, + 178, 180, 182, 184, 186, 187 }; /* YYRHS -- A `-1'-separated list of the rules' RHS. */ -static const signed char yyrhs[] = +static const yysigned_char yyrhs[] = { - 41, 0, -1, 42, 36, 57, 67, -1, -1, 42, - 43, 68, -1, 44, -1, 37, -1, 25, -1, 21, - 66, 66, -1, 23, -1, 17, -1, 13, 5, -1, - 19, 31, 66, -1, 26, -1, 20, 31, 66, -1, - 27, -1, 18, 31, 66, -1, 22, -1, 28, 66, - -1, 29, -1, 16, -1, 24, -1, 49, -1, 45, - -1, 14, 63, -1, 9, 39, -1, -1, 7, 46, - 56, -1, -1, 6, 47, 56, -1, -1, 8, 30, - 48, 53, -1, -1, 51, 52, 50, 54, -1, 10, - -1, 11, -1, 12, -1, -1, 30, -1, 35, -1, - 53, 35, -1, 63, -1, 54, 63, -1, 30, -1, - 35, -1, 35, 5, -1, 35, 65, -1, 35, 5, - 65, -1, 55, -1, 56, 55, -1, 58, -1, 57, - 58, -1, 59, -1, 44, 32, -1, -1, 35, 33, - 60, 61, 32, -1, 62, -1, 61, 34, 62, -1, - -1, 62, 63, -1, 62, 64, -1, 62, 15, 63, - -1, 35, -1, 65, -1, 4, -1, 39, -1, 3, - -1, 3, -1, -1, 36, 38, -1, -1, 32, -1 + 48, 0, -1, 49, 43, 61, 71, -1, -1, 49, + 50, -1, 51, -1, 44, -1, 17, -1, 18, 70, + 70, -1, 19, -1, 20, -1, 21, 4, -1, 22, + 38, 70, -1, 23, -1, 24, -1, 25, -1, 26, + 38, 70, -1, 27, -1, 28, -1, 29, 38, 70, + -1, 30, -1, 31, -1, 32, 70, -1, 34, -1, + 35, -1, 36, -1, 39, -1, 55, -1, 52, -1, + 33, 67, -1, 10, -1, 8, 58, -1, 9, 58, + -1, -1, 6, 53, 60, -1, -1, 5, 54, 60, + -1, 7, 37, 58, -1, 56, 57, 58, -1, 11, + -1, 12, -1, 13, -1, -1, 37, -1, 67, -1, + 58, 67, -1, 37, -1, 41, -1, 41, 4, -1, + 41, 69, -1, 41, 4, 69, -1, 59, -1, 60, + 59, -1, 62, -1, 61, 62, -1, 63, -1, 51, + -1, 1, 39, -1, 39, -1, -1, 42, 64, 65, + -1, 66, -1, 65, 40, 66, -1, -1, 66, 67, + -1, 66, 68, -1, 66, 14, 67, -1, 66, 15, + 4, -1, 66, 16, 37, -1, 41, -1, 69, -1, + 46, -1, 3, -1, 3, -1, -1, 43, 45, -1 }; /* YYRLINE[YYN] -- source line where rule number YYN was defined. */ static const unsigned short yyrline[] = { - 0, 150, 150, 163, 165, 168, 170, 171, 172, 173, - 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, - 184, 185, 188, 190, 191, 195, 203, 203, 209, 209, - 214, 214, 220, 220, 227, 229, 230, 233, 235, 239, - 241, 245, 251, 259, 264, 269, 275, 281, 291, 294, - 303, 305, 311, 313, 316, 316, 321, 323, 326, 329, - 331, 333, 337, 339, 340, 343, 349, 358, 366, 371, - 377, 379 + 0, 162, 162, 170, 172, 176, 177, 178, 179, 180, + 181, 182, 183, 184, 186, 187, 188, 189, 190, 191, + 192, 193, 194, 195, 196, 197, 198, 202, 203, 204, + 208, 214, 221, 231, 231, 236, 236, 241, 251, 266, + 267, 268, 272, 273, 279, 280, 285, 289, 294, 300, + 306, 317, 318, 327, 328, 334, 335, 340, 344, 348, + 348, 352, 353, 358, 359, 361, 363, 365, 367, 372, + 373, 377, 383, 392, 399, 401 }; #endif @@ -463,160 +460,176 @@ static const unsigned short yyrline[] = First, the terminals, then, starting at YYNTOKENS, nonterminals. */ static const char *const yytname[] = { - "\"end of string\"", "error", "$undefined.", "STRING", "CHARACTER", "INT", - "\"%token\"", "\"%nterm\"", "\"%type\"", "\"%union\"", "\"%left\"", - "\"%right\"", "\"%nonassoc\"", "\"%expect\"", "\"%start\"", "\"%prec\"", - "\"%verbose\"", "\"%error-verbose\"", "\"%output\"", "\"%file-prefix\"", - "\"%name-prefix\"", "\"%define\"", "\"%pure-parser\"", "\"%defines\"", - "\"%yacc\"", "\"%debug\"", "\"%locations\"", "\"%no-lines\"", - "\"%skeleton\"", "\"%token-table\"", "TYPE", "\"=\"", "\";\"", "\":\"", - "\"|\"", "\"identifier\"", "\"%%\"", "PROLOGUE", "EPILOGUE", - "BRACED_CODE", "$axiom", "input", "declarations", "declaration", - "grammar_declaration", "symbol_declaration", "@1", "@2", "@3", - "precedence_declaration", "@4", "precedence_declarator", "type.opt", - "nterms_to_type.1", "terms_to_prec.1", "symbol_def", "symbol_defs.1", - "grammar", "rules_or_grammar_declaration", "rules", "@5", "rhses.1", - "rhs", "symbol", "action", "string_as_id", "string_content", - "epilogue.opt", "semi_colon.opt", 0 + "\"end of file\"", "error", "$undefined", "\"string\"", "\"integer\"", + "\"%token\"", "\"%nterm\"", "\"%type\"", "\"%destructor {...}\"", + "\"%printer {...}\"", "\"%union {...}\"", "\"%left\"", "\"%right\"", + "\"%nonassoc\"", "\"%prec\"", "\"%dprec\"", "\"%merge\"", "\"%debug\"", + "\"%define\"", "\"%defines\"", "\"%error-verbose\"", "\"%expect\"", + "\"%file-prefix\"", "\"%glr-parser\"", "\"%lex-param {...}\"", + "\"%locations\"", "\"%name-prefix\"", "\"%no-lines\"", + "\"%nondeterministic-parser\"", "\"%output\"", "\"%parse-param {...}\"", + "\"%pure-parser\"", "\"%skeleton\"", "\"%start\"", "\"%token-table\"", + "\"%verbose\"", "\"%yacc\"", "\"type\"", "\"=\"", "\";\"", "\"|\"", + "\"identifier\"", "\"identifier:\"", "\"%%\"", "\"%{...%}\"", + "\"epilogue\"", "\"{...}\"", "$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 short yytoknum[] = +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, - -1 + 295, 296, 297, 298, 299, 300, 301 }; +# endif /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ static const unsigned char yyr1[] = { - 0, 40, 41, 42, 42, 43, 43, 43, 43, 43, - 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, - 43, 43, 44, 44, 44, 44, 46, 45, 47, 45, - 48, 45, 50, 49, 51, 51, 51, 52, 52, 53, - 53, 54, 54, 55, 55, 55, 55, 55, 56, 56, - 57, 57, 58, 58, 60, 59, 61, 61, 62, 62, - 62, 62, 63, 63, 63, 64, 65, 66, 67, 67, - 68, 68 + 0, 47, 48, 49, 49, 50, 50, 50, 50, 50, + 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, + 50, 50, 50, 50, 50, 50, 50, 51, 51, 51, + 51, 51, 51, 53, 52, 54, 52, 52, 55, 56, + 56, 56, 57, 57, 58, 58, 59, 59, 59, 59, + 59, 60, 60, 61, 61, 62, 62, 62, 62, 64, + 63, 65, 65, 66, 66, 66, 66, 66, 66, 67, + 67, 68, 69, 70, 71, 71 }; /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ static const unsigned char yyr2[] = { - 0, 2, 4, 0, 3, 1, 1, 1, 3, 1, - 1, 2, 3, 1, 3, 1, 3, 1, 2, 1, - 1, 1, 1, 1, 2, 2, 0, 3, 0, 3, - 0, 4, 0, 4, 1, 1, 1, 0, 1, 1, - 2, 1, 2, 1, 1, 2, 2, 3, 1, 2, - 1, 2, 1, 2, 0, 5, 1, 3, 0, 2, - 2, 3, 1, 1, 1, 1, 1, 1, 0, 2, - 0, 1 + 0, 2, 4, 0, 2, 1, 1, 1, 3, 1, + 1, 2, 3, 1, 1, 1, 3, 1, 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 short yydefact[] = +static const unsigned char yydefact[] = { - 3, 0, 0, 0, 28, 26, 0, 0, 34, 35, - 36, 0, 0, 20, 10, 0, 0, 0, 0, 17, - 9, 21, 7, 13, 15, 0, 19, 0, 6, 70, - 5, 23, 22, 37, 0, 0, 30, 25, 11, 66, - 64, 62, 24, 63, 0, 0, 0, 67, 0, 18, - 0, 0, 68, 50, 52, 71, 4, 38, 32, 43, - 44, 48, 29, 27, 0, 16, 12, 14, 8, 54, - 53, 0, 51, 2, 0, 45, 46, 49, 39, 31, - 58, 69, 33, 41, 47, 40, 0, 56, 42, 55, - 58, 0, 65, 59, 60, 57, 61 + 3, 0, 0, 1, 35, 33, 0, 0, 0, 30, + 39, 40, 41, 7, 0, 9, 10, 0, 0, 13, + 14, 15, 0, 17, 18, 0, 20, 21, 0, 0, + 23, 24, 25, 26, 0, 6, 4, 5, 28, 27, + 42, 0, 0, 0, 72, 69, 31, 44, 70, 32, + 73, 0, 11, 0, 0, 0, 22, 29, 0, 58, + 59, 56, 0, 53, 55, 43, 0, 46, 47, 51, + 36, 34, 37, 45, 8, 12, 16, 19, 57, 63, + 0, 54, 2, 38, 48, 49, 52, 60, 61, 75, + 50, 63, 0, 0, 0, 71, 64, 65, 62, 66, + 67, 68 }; -/* YYPGOTO[NTERM-NUM]. */ -static const short yydefgoto[] = +/* YYDEFGOTO[NTERM-NUM]. */ +static const yysigned_char yydefgoto[] = { - -1, 1, 2, 29, 51, 31, 35, 34, 64, 32, - 74, 33, 58, 79, 82, 61, 62, 52, 53, 54, - 80, 86, 87, 93, 94, 43, 48, 73, 56 + -1, 1, 2, 36, 61, 38, 42, 41, 39, 40, + 66, 46, 69, 70, 62, 63, 64, 79, 87, 88, + 47, 97, 48, 51, 82 }; /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing STATE-NUM. */ -static const short yypact[] = +#define YYPACT_NINF -65 +static const yysigned_char yypact[] = { - -32768, 9, 32,-32768,-32768,-32768, -13, -9,-32768,-32768, - -32768, 27, 0,-32768,-32768, 3, 5, 33, 60,-32768, - -32768,-32768,-32768,-32768,-32768, 60,-32768, 12,-32768, 34, - -32768,-32768,-32768, 35, -24, -24,-32768,-32768,-32768,-32768, - -32768,-32768,-32768,-32768, 60, 60, 60,-32768, 60,-32768, - 38, 49, 66,-32768,-32768,-32768,-32768,-32768,-32768,-32768, - 2,-32768, -24, -24, 47,-32768,-32768,-32768,-32768,-32768, - -32768, 29,-32768,-32768, 0, 80,-32768,-32768,-32768, 50, - -32768,-32768, 0,-32768,-32768,-32768, -20, -2,-32768,-32768, - -32768, 0,-32768,-32768,-32768, -2,-32768 + -65, 27, 103, -65, -65, -65, -15, -2, -2, -65, + -65, -65, -65, -65, 25, -65, -65, 28, -5, -65, + -65, -65, -3, -65, -65, 0, -65, -65, 25, -2, + -65, -65, -65, -65, 65, -65, -65, -65, -65, -65, + 4, -18, -18, -2, -65, -65, -2, -65, -65, -2, + -65, 25, -65, 25, 25, 25, -65, -65, 1, -65, + -65, -65, 3, -65, -65, -65, -2, -65, 22, -65, + -18, -18, -2, -65, -65, -65, -65, -65, -65, -65, + -11, -65, -65, -2, 41, -65, -65, 8, 15, -65, + -65, -65, -2, 48, 16, -65, -65, -65, 15, -65, + -65, -65 }; /* YYPGOTO[NTERM-NUM]. */ -static const short yypgoto[] = +static const yysigned_char yypgoto[] = { - -32768,-32768,-32768,-32768, 82,-32768,-32768,-32768,-32768,-32768, - -32768,-32768,-32768,-32768,-32768, -47, 51,-32768, 36,-32768, - -32768,-32768, -3, -12,-32768, -50, -17,-32768,-32768 + -65, -65, -65, -65, 53, -65, -65, -65, -65, -65, + -65, -6, -64, 20, -65, 2, -65, -65, -65, -34, + -29, -65, -63, -4, -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. */ -static const short yytable[] = + number is the opposite. If zero, do what YYDEFACT says. + If YYTABLE_NINF, syntax error. */ +#define YYTABLE_NINF -75 +static const yysigned_char yytable[] = { - 42, 39, 40, 39, 40, 39, 59, 75, 49, 3, - 76, 60, 89, 91, 90, 77, 77, 36, 4, 5, - 6, 7, 8, 9, 10, 84, 12, 65, 66, 67, - 37, 68, 38, 41, 44, 41, 45, 92, 4, 5, - 6, 7, 8, 9, 10, 11, 12, 50, 13, 14, - 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, - 25, 26, 83, 47, 46, 57, 55, 81, 27, 28, - 88, 69, 4, 5, 6, 7, 8, 9, 10, 96, - 12, 70, 78, 39, 30, 85, 63, 95, 72, 0, + 57, 44, 49, -74, 58, 85, 86, 86, 4, 5, + 6, 7, 8, 9, 10, 11, 12, 73, 44, 67, + 73, 90, 43, 68, 56, 44, 84, 3, 50, 92, + 93, 94, 52, 53, 89, 54, 29, 72, 55, 45, + 78, 65, 59, 73, 44, 60, 80, 74, 91, 75, + 76, 77, 100, 101, 73, 37, 45, 98, 0, 96, + 83, 95, 71, 99, 81, 0, 58, 0, 0, 96, + 4, 5, 6, 7, 8, 9, 10, 11, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 50, 71 + 0, 0, 0, 0, 0, 0, 0, 0, 29, 0, + 0, 0, 0, 0, 59, 0, 0, 60, 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, 32, + 0, 0, 33, 0, 0, 0, 34, 35 }; -static const short yycheck[] = +static const yysigned_char yycheck[] = { - 12, 3, 4, 3, 4, 3, 30, 5, 25, 0, - 60, 35, 32, 15, 34, 62, 63, 30, 6, 7, - 8, 9, 10, 11, 12, 75, 14, 44, 45, 46, - 39, 48, 5, 35, 31, 35, 31, 39, 6, 7, - 8, 9, 10, 11, 12, 13, 14, 35, 16, 17, - 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, - 28, 29, 74, 3, 31, 30, 32, 38, 36, 37, - 82, 33, 6, 7, 8, 9, 10, 11, 12, 91, - 14, 32, 35, 3, 2, 35, 35, 90, 52, -1, + 29, 3, 8, 0, 1, 68, 70, 71, 5, 6, + 7, 8, 9, 10, 11, 12, 13, 46, 3, 37, + 49, 84, 37, 41, 28, 3, 4, 0, 3, 14, + 15, 16, 4, 38, 45, 38, 33, 43, 38, 41, + 39, 37, 39, 72, 3, 42, 43, 51, 40, 53, + 54, 55, 4, 37, 83, 2, 41, 91, -1, 88, + 66, 46, 42, 92, 62, -1, 1, -1, -1, 98, + 5, 6, 7, 8, 9, 10, 11, 12, 13, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, 35, 36 + -1, -1, -1, -1, -1, -1, -1, -1, 33, -1, + -1, -1, -1, -1, 39, -1, -1, 42, 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, 36, + -1, -1, 39, -1, -1, -1, 43, 44 }; -#if YYDEBUG /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing symbol of state STATE-NUM. */ static const unsigned char yystos[] = { - 0, 41, 42, 0, 6, 7, 8, 9, 10, 11, - 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, - 23, 24, 25, 26, 27, 28, 29, 36, 37, 43, - 44, 45, 49, 51, 47, 46, 30, 39, 5, 3, - 4, 35, 63, 65, 31, 31, 31, 3, 66, 66, - 35, 44, 57, 58, 59, 32, 68, 30, 52, 30, - 35, 55, 56, 56, 48, 66, 66, 66, 66, 33, - 32, 36, 58, 67, 50, 5, 65, 55, 35, 53, - 60, 38, 54, 63, 65, 35, 61, 62, 63, 32, - 34, 15, 39, 63, 64, 62, 63 + 0, 48, 49, 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, 36, 39, 43, 44, 50, 51, 52, 55, + 56, 54, 53, 37, 3, 41, 58, 67, 69, 58, + 3, 70, 4, 38, 38, 38, 70, 67, 1, 39, + 42, 51, 61, 62, 63, 37, 57, 37, 41, 59, + 60, 60, 58, 67, 70, 70, 70, 70, 39, 64, + 43, 62, 71, 58, 4, 69, 59, 65, 66, 45, + 69, 40, 14, 15, 16, 46, 67, 68, 66, 67, + 4, 37 }; -#endif #if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) # define YYSIZE_T __SIZE_TYPE__ @@ -636,12 +649,19 @@ static const unsigned char yystos[] = #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 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. @@ -657,13 +677,13 @@ do \ { \ 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) @@ -675,7 +695,7 @@ while (0) are run). */ #ifndef YYLLOC_DEFAULT -# define YYLLOC_DEFAULT(Current, Rhs, N) \ +# 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; \ @@ -684,23 +704,11 @@ while (0) /* 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 @@ -715,13 +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 @@ -799,72 +887,127 @@ yystpcpy (yydest, yysrc) -/* 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 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. | +`-----------------------------------------------*/ + +#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; @@ -872,7 +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, @@ -892,27 +1035,20 @@ 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. */ @@ -932,9 +1068,7 @@ yyparse (YYPARSE_PARAM_ARG) yyssp = yyss; yyvsp = yyvs; -#if YYLSP_NEEDED yylsp = yyls; -#endif goto yysetstate; /*------------------------------------------------------------. @@ -949,7 +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; @@ -961,25 +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; } @@ -988,10 +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; { @@ -1002,9 +1129,7 @@ yyparse (YYPARSE_PARAM_ARG) goto yyoverflowlab; YYSTACK_RELOCATE (yyss); YYSTACK_RELOCATE (yyvs); -# if YYLSP_NEEDED YYSTACK_RELOCATE (yyls); -# endif # undef YYSTACK_RELOCATE if (yyss1 != yyssa) YYSTACK_FREE (yyss1); @@ -1014,14 +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; } @@ -1041,88 +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. */ @@ -1153,409 +1243,397 @@ 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 /* 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) - { - int yyi; - - YYFPRINTF (stderr, "Reducing via rule %d (line %d), ", - yyn - 1, 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 + YY_REDUCE_PRINT (yyn); switch (yyn) { - case 2: -#line 152 "parse-gram.y" - { - yycontrol->errcode = 0; - epilogue_set (yyvsp[0].string, yylsp[0]); - } - break; - - case 6: -#line 170 "parse-gram.y" - { prologue_augment (yyvsp[0].string, yylsp[0]); } + case 6: +#line 177 "parse-gram.y" + { prologue_augment (yyvsp[0].chars, yylsp[0]); } break; case 7: -#line 171 "parse-gram.y" +#line 178 "parse-gram.y" { debug_flag = 1; } break; case 8: -#line 172 "parse-gram.y" - { muscle_insert (yyvsp[-1].string, yyvsp[0].string); } +#line 179 "parse-gram.y" + { muscle_insert (yyvsp[-1].chars, yyvsp[0].chars); } break; case 9: -#line 173 "parse-gram.y" +#line 180 "parse-gram.y" { defines_flag = 1; } break; case 10: -#line 174 "parse-gram.y" +#line 181 "parse-gram.y" { error_verbose = 1; } break; case 11: -#line 175 "parse-gram.y" +#line 182 "parse-gram.y" { expected_conflicts = yyvsp[0].integer; } break; case 12: -#line 176 "parse-gram.y" - { spec_file_prefix = yyvsp[0].string; } +#line 183 "parse-gram.y" + { spec_file_prefix = yyvsp[0].chars; } break; case 13: -#line 177 "parse-gram.y" - { locations_flag = 1; } +#line 184 "parse-gram.y" + { nondeterministic_parser = true; + glr_parser = true; } break; case 14: -#line 178 "parse-gram.y" - { spec_name_prefix = yyvsp[0].string; } +#line 186 "parse-gram.y" + { add_param ("lex_param", yyvsp[0].chars, yylsp[0]); } break; case 15: -#line 179 "parse-gram.y" - { no_lines_flag = 1; } +#line 187 "parse-gram.y" + { locations_flag = 1; } break; case 16: -#line 180 "parse-gram.y" - { spec_outfile = yyvsp[0].string; } +#line 188 "parse-gram.y" + { spec_name_prefix = yyvsp[0].chars; } break; case 17: -#line 181 "parse-gram.y" - { pure_parser = 1; } +#line 189 "parse-gram.y" + { no_lines_flag = 1; } break; case 18: -#line 182 "parse-gram.y" - { skeleton = yyvsp[0].string; } +#line 190 "parse-gram.y" + { nondeterministic_parser = true; } break; case 19: -#line 183 "parse-gram.y" - { token_table_flag = 1; } +#line 191 "parse-gram.y" + { spec_outfile = yyvsp[0].chars; } break; case 20: -#line 184 "parse-gram.y" - { report_flag = 1; } +#line 192 "parse-gram.y" + { add_param ("parse_param", yyvsp[0].chars, yylsp[0]); } break; case 21: -#line 185 "parse-gram.y" - { yacc_flag = 1; } +#line 193 "parse-gram.y" + { pure_parser = true; } break; - case 24: -#line 192 "parse-gram.y" - { - grammar_start_symbol_set (yyvsp[0].symbol, yylsp[0]); - } + case 22: +#line 194 "parse-gram.y" + { skeleton = yyvsp[0].chars; } break; - case 25: + case 23: +#line 195 "parse-gram.y" + { token_table_flag = 1; } + break; + + case 24: #line 196 "parse-gram.y" - { - typed = 1; - MUSCLE_INSERT_INT ("stype_line", yylsp[0].first_line); - muscle_insert ("stype", yyvsp[0].string); - } + { report_flag = report_states; } break; - case 26: -#line 204 "parse-gram.y" - { current_class = nterm_sym; } + case 25: +#line 197 "parse-gram.y" + { yacc_flag = 1; } break; - case 27: + case 29: #line 205 "parse-gram.y" { - current_class = unknown_sym; - current_type = NULL; + grammar_start_symbol_set (yyvsp[0].symbol, yylsp[0]); } break; - case 28: + case 30: #line 209 "parse-gram.y" - { current_class = token_sym; } - break; - - case 29: -#line 210 "parse-gram.y" { - current_class = unknown_sym; - current_type = NULL; + typed = 1; + MUSCLE_INSERT_INT ("stype_line", yylsp[0].start.line); + muscle_insert ("stype", yyvsp[0].chars); } break; - case 30: -#line 214 "parse-gram.y" - {current_type = yyvsp[0].string; } - break; - case 31: #line 215 "parse-gram.y" { - current_type = NULL; + 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 32: #line 222 "parse-gram.y" - { current_assoc = yyvsp[-1].assoc; ++current_prec; } + { + 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 33: -#line 224 "parse-gram.y" - { current_assoc = non_assoc; current_type = NULL; } +#line 231 "parse-gram.y" + { current_class = nterm_sym; } break; case 34: -#line 228 "parse-gram.y" - { yyval.assoc = left_assoc; } +#line 232 "parse-gram.y" + { + current_class = unknown_sym; + current_type = NULL; + } break; case 35: -#line 229 "parse-gram.y" - { yyval.assoc = right_assoc; } +#line 236 "parse-gram.y" + { current_class = token_sym; } break; case 36: -#line 230 "parse-gram.y" - { yyval.assoc = non_assoc; } +#line 237 "parse-gram.y" + { + current_class = unknown_sym; + current_type = NULL; + } break; case 37: -#line 234 "parse-gram.y" - { current_type = NULL;} +#line 242 "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 38: -#line 235 "parse-gram.y" - { current_type = yyvsp[0].string; } +#line 252 "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 39: -#line 240 "parse-gram.y" - { symbol_type_set (yyvsp[0].symbol, current_type); } +#line 266 "parse-gram.y" + { yyval.assoc = left_assoc; } break; case 40: -#line 241 "parse-gram.y" - { symbol_type_set (yyvsp[0].symbol, current_type); } +#line 267 "parse-gram.y" + { yyval.assoc = right_assoc; } break; case 41: -#line 247 "parse-gram.y" - { - symbol_type_set (yyvsp[0].symbol, current_type); - symbol_precedence_set (yyvsp[0].symbol, current_prec, current_assoc); - } +#line 268 "parse-gram.y" + { yyval.assoc = non_assoc; } break; case 42: -#line 252 "parse-gram.y" - { - symbol_type_set (yyvsp[0].symbol, current_type); - symbol_precedence_set (yyvsp[0].symbol, current_prec, current_assoc); - } +#line 272 "parse-gram.y" + { current_type = NULL; } break; case 43: -#line 261 "parse-gram.y" - { - current_type = yyvsp[0].string; - } +#line 273 "parse-gram.y" + { current_type = yyvsp[0].uniqstr; } break; case 44: -#line 265 "parse-gram.y" - { - symbol_class_set (yyvsp[0].symbol, current_class); - symbol_type_set (yyvsp[0].symbol, current_type); - } +#line 279 "parse-gram.y" + { yyval.list = symbol_list_new (yyvsp[0].symbol, yylsp[0]); } break; case 45: -#line 270 "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); - } +#line 280 "parse-gram.y" + { yyval.list = symbol_list_prepend (yyvsp[-1].list, yyvsp[0].symbol, yylsp[0]); } break; case 46: -#line 276 "parse-gram.y" +#line 286 "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); - } + current_type = yyvsp[0].uniqstr; + } break; case 47: -#line 282 "parse-gram.y" +#line 290 "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); - } + symbol_class_set (yyvsp[0].symbol, current_class, yylsp[0]); + symbol_type_set (yyvsp[0].symbol, current_type, yylsp[0]); + } break; case 48: -#line 293 "parse-gram.y" - {;} - break; - - case 49: #line 295 "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 54: -#line 317 "parse-gram.y" - { current_lhs = yyvsp[-1].symbol; current_lhs_location = yylsp[-1]; } + case 49: +#line 301 "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 55: -#line 318 "parse-gram.y" - {;} + case 50: +#line 307 "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 56: -#line 322 "parse-gram.y" - { grammar_rule_end (yylsp[0]); } +#line 336 "parse-gram.y" + { + if (yacc_flag) + complain_at (yyloc, _("POSIX forbids declarations in the grammar")); + } break; case 57: -#line 323 "parse-gram.y" - { grammar_rule_end (yylsp[0]); } - break; - - case 58: -#line 328 "parse-gram.y" - { grammar_rule_begin (current_lhs, current_lhs_location); } +#line 341 "parse-gram.y" + { + yyerrok; + } break; case 59: -#line 330 "parse-gram.y" - { grammar_current_rule_symbol_append (yyvsp[0].symbol, yylsp[0]); } - break; - - case 60: -#line 332 "parse-gram.y" - { grammar_current_rule_action_append (yyvsp[0].string, yylsp[0]); } +#line 348 "parse-gram.y" + { current_lhs = yyvsp[0].symbol; current_lhs_location = yylsp[0]; } break; case 61: -#line 334 "parse-gram.y" - { grammar_current_rule_prec_set (yyvsp[0].symbol); } +#line 352 "parse-gram.y" + { grammar_rule_end (yylsp[0]); } break; case 62: -#line 338 "parse-gram.y" - { yyval.symbol = yyvsp[0].symbol; } +#line 353 "parse-gram.y" + { grammar_rule_end (yylsp[0]); } break; case 63: -#line 339 "parse-gram.y" - { yyval.symbol = yyvsp[0].symbol; } +#line 358 "parse-gram.y" + { grammar_rule_begin (current_lhs, current_lhs_location); } break; case 64: -#line 340 "parse-gram.y" - { yyval.symbol = getsym (yyvsp[0].string, yylsp[0]); } +#line 360 "parse-gram.y" + { grammar_current_rule_symbol_append (yyvsp[0].symbol, yylsp[0]); } break; case 65: -#line 345 "parse-gram.y" - { yyval.string = yyvsp[0].string; } +#line 362 "parse-gram.y" + { grammar_current_rule_action_append (yyvsp[0].chars, yylsp[0]); } break; case 66: -#line 351 "parse-gram.y" - { - yyval.symbol = getsym (yyvsp[0].string, yylsp[0]); - symbol_class_set (yyval.symbol, token_sym); - } +#line 364 "parse-gram.y" + { grammar_current_rule_prec_set (yyvsp[0].symbol, yylsp[0]); } break; case 67: -#line 360 "parse-gram.y" - { - yyval.string = yyvsp[0].string + 1; - yyval.string[strlen (yyval.string) - 1] = '\0'; - } +#line 366 "parse-gram.y" + { grammar_current_rule_dprec_set (yyvsp[0].integer, yylsp[0]); } break; case 68: #line 368 "parse-gram.y" - { - yyval.string = xstrdup (""); - } + { grammar_current_rule_merge_set (yyvsp[0].uniqstr, yylsp[0]); } break; case 69: #line 372 "parse-gram.y" + { yyval.symbol = yyvsp[0].symbol; } + break; + + case 70: +#line 373 "parse-gram.y" + { yyval.symbol = yyvsp[0].symbol; } + break; + + case 71: +#line 378 "parse-gram.y" + { yyval.chars = yyvsp[0].chars; } + break; + + case 72: +#line 384 "parse-gram.y" { - yyval.string = yyvsp[0].string; + yyval.symbol = symbol_get (yyvsp[0].chars, yylsp[0]); + symbol_class_set (yyval.symbol, token_sym, yylsp[0]); } break; + case 73: +#line 393 "parse-gram.y" + { + yyval.chars = yyvsp[0].chars + 1; + yyval.chars[strlen (yyval.chars) - 1] = '\0'; + } + break; + case 75: +#line 402 "parse-gram.y" + { + epilogue_augment (yyvsp[0].chars, yylsp[0]); + scanner_last_string_free (); } + break; + -/* Line 1012 of /usr/local/share/bison/bison.simple. */ -#line 1537 "parse-gram.c" + } + +/* Line 999 of yacc.c. */ +#line 1628 "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 @@ -1564,7 +1642,7 @@ yyreduce: yyn = yyr1[yyn]; yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; - if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) + if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) yystate = yytable[yystate]; else yystate = yydefgoto[yyn - YYNTOKENS]; @@ -1580,62 +1658,70 @@ yyerrlab: if (!yyerrstatus) { ++yynerrs; - #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); + const char* yyprefix; 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 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 = 0; + + yyprefix = ", expecting "; + for (yyx = yyxbegin; yyx < yyxend; ++yyx) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) + { + yysize += yystrlen (yyprefix) + yystrlen (yytname [yyx]); + yycount += 1; + 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) + yyprefix = ", expecting "; + for (yyx = yyxbegin; yyx < yyxend; ++yyx) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) { - const char *yyq = ! yycount ? ", expecting " : " or "; - yyp = yystpcpy (yyp, yyq); + yyp = yystpcpy (yyp, yyprefix); yyp = yystpcpy (yyp, yytname[yyx]); - yycount++; + yyprefix = " or "; } } yyerror (yymsg); YYSTACK_FREE (yymsg); - } - else - yyerror ("parse error; also virtual memory exhausted"); - } + } + else + yyerror ("syntax error; also virtual memory exhausted"); + } else #endif /* YYERROR_VERBOSE */ - yyerror ("parse error"); + 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 @@ -1643,21 +1729,40 @@ yyerrlab1: /* 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. */ + goto yyerrlab1; + +/*----------------------------------------------------. +| yyerrlab1 -- error raised explicitly by an action. | +`----------------------------------------------------*/ +yyerrlab1: yyerrstatus = 3; /* Each real token shifted decrements this. */ for (;;) { yyn = yypact[yystate]; - if (yyn != YYFLAG) + if (yyn != YYPACT_NINF) { yyn += YYTERROR; if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) @@ -1672,42 +1777,12 @@ yyerrlab1: if (yyssp == yyss) YYABORT; -#if YYDEBUG - if (yydebug) - { - if (yystos[yystate] < YYNTOKENS) - { - YYFPRINTF (stderr, "Error: popping token %d (%s", - yytoknum[yystos[yystate]], yytname[yystos[yystate]]); -# ifdef YYPRINT - YYPRINT (stderr, yytoknum[yystos[yystate]], *yyvsp); -# endif - YYFPRINTF (stderr, ")\n"); - } - else - { - YYFPRINTF (stderr, "Error: popping nonterminal (%s)\n", - yytname[yystos[yystate]]); - } - } -#endif - + YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp); + yydestruct (yystos[yystate], yyvsp, yylsp); yyvsp--; yystate = *--yyssp; -#if YYLSP_NEEDED yylsp--; -#endif - -#if YYDEBUG - if (yydebug) - { - short *yyssp1 = yyss - 1; - YYFPRINTF (stderr, "Error: state stack now"); - while (yyssp1 != yyssp) - YYFPRINTF (stderr, " %d", *++yyssp1); - YYFPRINTF (stderr, "\n"); - } -#endif + YY_STACK_PRINT (yyss, yyssp); } if (yyn == YYFINAL) @@ -1716,9 +1791,8 @@ yyerrlab1: 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; @@ -1738,13 +1812,15 @@ 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 @@ -1754,25 +1830,92 @@ yyreturn: return yyresult; } -#line 381 "parse-gram.y" -/*------------------------------------------------------------------. -| When debugging the parser, display tokens' locations and values. | -`------------------------------------------------------------------*/ +#line 408 "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; @@ -1782,26 +1925,39 @@ 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]; }