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(SALIAS): New #define for adding aliases to %token.

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(struct bucket): Added `alias' field.
This commit is contained in:
Richard M. Stallman
1995-10-15 20:19:02 +00:00
parent d129c2c0e7
commit 984a8a8a40
1 changed files with 9 additions and 3 deletions
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12
src/symtab.h
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@@ -1,5 +1,5 @@
/* Definitions for symtab.c and callers, part of bison,
Copyright (C) 1984, 1989 Free Software Foundation, Inc.
Copyright (C) 1984, 1989, 1992 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
@@ -24,9 +24,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* symbol classes */
#define SUNKNOWN 0
#define STOKEN 1
#define SNTERM 2
#define STOKEN 1 /* terminal symbol */
#define SNTERM 2 /* non-terminal */
#define SALIAS -9991 /* for symbol generated with an alias */
typedef
struct bucket
@@ -39,6 +40,11 @@ typedef
short prec;
short assoc;
short user_token_number;
/* special value SALIAS in the identifier
half of the identifier-symbol pair for an alias */
struct bucket *alias;
/* points to the other in the identifier-symbol
pair for an alias */
char class;
}
bucket;