From: ts <decoux@...>
Date: 2006-04-02T21:02:09+09:00
Subject: Re: [PATCH] parse.y: literal strings for tokens

>>>>> "R" == Robin Stocker <robin@nibor.org> writes:

R> Here's a manual for Bison 1 and the notation is also there:
R> http://www.sunsite.ualberta.ca/Documentation/Gnu/bison-1.28/html_mono/bison.html#SEC50
 Well, with a very, very old yacc (Sun)

nasun% cat a.y
%token  DIGIT  "digit"
%% 
number    :    DIGIT
%%
nasun%
 
nasun% yacc -V a.y
yacc: Software Generation Utilities (SGU) Solaris-ELF (4.0)
nasun% 

nasun% more y.tab.c
[...]
yytoktype yytoks[] =
{
        "DIGIT",        257,
        "digit",        258,
        "-unknown-",    -1      /* ends search */
};

[...]
nasun%

 If i'm right this mean that it see 2 tokens

 With the same file

moulon% bison -V    
bison (GNU Bison) 2.1
Written by Robert Corbett and Richard Stallman.

Copyright (C) 2005 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
moulon% 

moulon% bison -y a.y
moulon% 

moulon% more y.tab.c
[...]

   enum yytokentype {
     DIGIT = 258
   };
#endif
/* Tokens.  */
#define DIGIT 258
[...]
moulon%


Guy Decoux