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[bison.git] / src / lalr.h

diff --git a/src/lalr.h b/src/lalr.h
index c0abb2c7217031a8efd46167681cb7ae49d01650..77a5d9df7d4a461c1fb1e824cd3ebb8f2d84490e 100644 (file)
--- a/src/lalr.h
+++ b/src/lalr.h
@@ -1,5 +1,5 @@
 /* Compute look-ahead criteria for bison,
-   Copyright (C) 1984, 1986, 1989 Free Software Foundation, Inc.
+   Copyright 1984, 1986, 1989, 2000 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -35,25 +35,20 @@ void lalr PARAMS ((void));
 
 /* lalr() builds these data structures. */
 
-/* goto_map, from_state and to_state --record each shift transition
+/* GOTO_MAP, FROM_STATE and TO_STATE -- record each shift transition
    which accepts a variable (a nonterminal).
 
-   from_state[t] is the state number which a transition leads from and
-   to_state[t] is the state number it leads to.  All the transitions
-   that accept a particular variable are grouped together and
-   goto_map[i - ntokens] is the index in from_state and to_state of
-   the first of them.  */
+   FROM_STATE[T] -- state number which a transition leads from.
+   TO_STATE[T] -- state number it leads to.
+
+   All the transitions that accept a particular variable are grouped
+   together and GOTO_MAP[I - NTOKENS] is the index in FROM_STATE and
+   TO_STATE of the first of them.  */
 
 extern short *goto_map;
 extern short *from_state;
 extern short *to_state;
 
-/* CONSISTENT[S] is nonzero if no lookahead is needed to decide what
-   to do in state S.  */
-
-extern char *consistent;
-
-
 /* LARULENO is a vector which records the rules that need lookahead in
    various states.  The elements of LARULENO that apply to state S are
    those from LOOKAHEADS[S] through LOOKAHEADS[S+1]-1.  Each element
@@ -71,15 +66,12 @@ extern short *LAruleno;
    it is a conflict.  */
 
 extern unsigned *LA;
+#define LA(Rule) (LA + (Rule) * tokensetsize)
 
 
-extern int tokensetsize;
-extern short *lookaheads;
-extern short *accessing_symbol;
-extern core **state_table;
-extern shifts **shift_table;
-extern reductions **reduction_table;
-
+/* All the states, indexed by the state number.  */
+extern state_t **states;
 
+extern int tokensetsize;
 
 #endif /* !LALR_H_ */