| Index: bison/src/bison/2.4.1/bison-2.4.1-src/src/tables.h
|
| ===================================================================
|
| --- bison/src/bison/2.4.1/bison-2.4.1-src/src/tables.h (revision 0)
|
| +++ bison/src/bison/2.4.1/bison-2.4.1-src/src/tables.h (revision 0)
|
| @@ -0,0 +1,117 @@
|
| +/* Prepare the LALR and GLR parser tables.
|
| + Copyright (C) 2002, 2004 Free Software Foundation, Inc.
|
| +
|
| + This file is part of Bison, the GNU Compiler Compiler.
|
| +
|
| + 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 3 of the License, or
|
| + (at your option) any later version.
|
| +
|
| + This program is distributed in the hope that it will be useful,
|
| + but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| + GNU General Public License for more details.
|
| +
|
| + You should have received a copy of the GNU General Public License
|
| + along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
| +
|
| +#ifndef TABLES_H_
|
| +# define TABLES_H_
|
| +
|
| +# include "state.h"
|
| +
|
| +/* The parser tables consist of these tables.
|
| +
|
| + YYTRANSLATE = vector mapping yylex's token numbers into bison's
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| + token numbers.
|
| +
|
| + YYTNAME = vector of string-names indexed by bison token number.
|
| +
|
| + YYTOKNUM = vector of yylex token numbers corresponding to entries
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| + in YYTNAME.
|
| +
|
| + YYRLINE = vector of line-numbers of all rules. For yydebug
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| + printouts.
|
| +
|
| + YYRHS = vector of items of all rules. This is exactly what RITEMS
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| + contains. For yydebug and for semantic parser.
|
| +
|
| + YYPRHS[R] = index in YYRHS of first item for rule R.
|
| +
|
| + YYR1[R] = symbol number of symbol that rule R derives.
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| +
|
| + YYR2[R] = number of symbols composing right hand side of rule R.
|
| +
|
| + YYSTOS[S] = the symbol number of the symbol that leads to state S.
|
| +
|
| + 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.
|
| +
|
| + YYDEFGOTO[I] = default state to go to after a reduction of a rule
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| + that generates variable NTOKENS + I, except when YYTABLE specifies
|
| + something else to do.
|
| +
|
| + YYPACT[S] = index in YYTABLE of the portion describing state S.
|
| + The lookahead token's type is used to index that portion to find
|
| + out what to do.
|
| +
|
| + If the value in YYTABLE is positive, we shift the token and go to
|
| + that state.
|
| +
|
| + If the value is negative, it is minus a rule number to reduce by.
|
| +
|
| + If the value is zero, the default action from YYDEFACT[S] is used.
|
| +
|
| + YYPGOTO[I] = the index in YYTABLE of the portion describing what to
|
| + do after reducing a rule that derives variable I + NTOKENS. This
|
| + portion is indexed by the parser state number, S, as of before the
|
| + text for this nonterminal was read. The value from YYTABLE is the
|
| + state to go to if the corresponding value in YYCHECK is S.
|
| +
|
| + YYTABLE = a vector filled with portions for different uses, found
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| + via YYPACT and YYPGOTO.
|
| +
|
| + YYCHECK = a vector indexed in parallel with YYTABLE. It indicates,
|
| + in a roundabout way, the bounds of the portion you are trying to
|
| + examine.
|
| +
|
| + Suppose that the portion of YYTABLE starts at index P and the index
|
| + to be examined within the portion is I. Then if YYCHECK[P+I] != I,
|
| + I is outside the bounds of what is actually allocated, and the
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| + default (from YYDEFACT or YYDEFGOTO) should be used. Otherwise,
|
| + YYTABLE[P+I] should be used.
|
| +
|
| + YYFINAL = the state number of the termination state.
|
| +
|
| + YYLAST ( = high) the number of the last element of YYTABLE, i.e.,
|
| + sizeof (YYTABLE) - 1. */
|
| +
|
| +extern int nvectors;
|
| +
|
| +typedef int base_number;
|
| +extern base_number *base;
|
| +/* A distinguished value of BASE, negative infinite. During the
|
| + computation equals to BASE_MINIMUM, later mapped to BASE_NINF to
|
| + keep parser tables small. */
|
| +extern base_number base_ninf;
|
| +
|
| +extern unsigned int *conflict_table;
|
| +extern unsigned int *conflict_list;
|
| +extern int conflict_list_cnt;
|
| +
|
| +extern base_number *table;
|
| +extern base_number *check;
|
| +/* The value used in TABLE to denote explicit syntax errors
|
| + (%nonassoc), a negative infinite. */
|
| +extern base_number table_ninf;
|
| +
|
| +extern state_number *yydefgoto;
|
| +extern rule_number *yydefact;
|
| +extern int high;
|
| +
|
| +void tables_generate (void);
|
| +void tables_free (void);
|
| +
|
| +#endif /* !TABLES_H_ */
|
|
|
| Property changes on: bison\src\bison\2.4.1\bison-2.4.1-src\src\tables.h
|
| ___________________________________________________________________
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| Added: svn:eol-style
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| + LF
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