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 |
+ token numbers. |
+ |
+ YYTNAME = vector of string-names indexed by bison token number. |
+ |
+ YYTOKNUM = vector of yylex token numbers corresponding to entries |
+ in YYTNAME. |
+ |
+ YYRLINE = vector of line-numbers of all rules. For yydebug |
+ printouts. |
+ |
+ YYRHS = vector of items of all rules. This is exactly what RITEMS |
+ 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. |
+ |
+ 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 |
+ 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 |
+ 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 |
+ 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 |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |