* ro.po: New.

[bison.git] / src / lalr.h

diff --git a/src/lalr.h b/src/lalr.h
index c0abb2c7217031a8efd46167681cb7ae49d01650..7912a089d46b19316daf98609b2262104c514d26 100644 (file)
--- a/src/lalr.h
+++ b/src/lalr.h
@@ -1,5 +1,5 @@
 /* Compute look-ahead criteria for bison,
 /* Compute look-ahead criteria for bison,

-   Copyright (C) 1984, 1986, 1989 Free Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 2000, 2002 Free Software Foundation, Inc.

 
    This file is part of Bison, the GNU Compiler Compiler.
 
 
    This file is part of Bison, the GNU Compiler Compiler.
 


@@ -21,65 +21,45 @@
 #ifndef LALR_H_
 # define LALR_H_
 
 #ifndef LALR_H_
 # define LALR_H_
 

+# include <bitset.h>
+# include <bitsetv.h>

 
 

-/* Import the definition of CORE, SHIFTS and REDUCTIONS. */
-# include "state.h"
+/* Import the definition of RULE_T. */
+# include "gram.h"

 
 

+/* Import the definition of CORE, TRANSITIONS and REDUCTIONS. */
+# include "state.h"

 
 /* Compute how to make the finite state machine deterministic; find
    which rules need lookahead in each state, and which lookahead
    tokens they accept.  */
 
 
 /* Compute how to make the finite state machine deterministic; find
    which rules need lookahead in each state, and which lookahead
    tokens they accept.  */
 

-void lalr PARAMS ((void));
-
-
-/* lalr() builds these data structures. */
-
-/* goto_map, from_state and to_state --record each shift transition
-   which accepts a variable (a nonterminal).
+void lalr (void);

 
 

-   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.  */
+/* Release the information related to lookaheads.  Can be performed
+   once the action tables are computed.  */

 
 

-extern short *goto_map;
-extern short *from_state;
-extern short *to_state;
+void lalr_free (void);

 
 

-/* 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
-   of LARULENO is a rule number.
-
-   If LR is the length of LAruleno, then a number from 0 to LR-1 can
-   specify both a rule and a state where the rule might be applied.
-   */
-
-extern short *LAruleno;
+/* lalr() builds these data structures. */

 
 

-/* LA is a lr by ntokens matrix of bits.  LA[l, i] is 1 if the rule
-   LAruleno[l] is applicable in the appropriate state when the next
-   token is symbol i.  If LA[l, i] and LA[l, j] are both 1 for i != j,
-   it is a conflict.  */
+/* GOTO_MAP, FROM_STATE and TO_STATE -- record each shift transition
+   which accepts a variable (a nonterminal).

 
 

-extern unsigned *LA;
+   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 int tokensetsize;
-extern short *lookaheads;
-extern short *accessing_symbol;
-extern core **state_table;
-extern shifts **shift_table;
-extern reductions **reduction_table;
+typedef short goto_number;
+# define GOTO_NUMBER_MAXIMUM SHRT_MAX

 
 

+extern goto_number *goto_map;
+extern state_number *from_state;
+extern state_number *to_state;

 
 
 #endif /* !LALR_H_ */
 
 
 #endif /* !LALR_H_ */