%define token.prefix.

[bison.git] / ChangeLog

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+2008-11-13  Akim Demaille  <demaille@gostai.com>
+
+       %define token.prefix.
+       Provide a means to add a prefix to the name of the tokens as output in the
+       generated files.  Because of name clashes, it is good to have such a
+       prefix such as TOK_ that protects from names such as EOF, FILE etc.
+       But it clutters the grammar itself.
+       
+       * data/bison.m4 (token.prefix): Empty by default.
+       * data/c.m4 (b4_token_enum, b4_token_define): Use it.
+       * data/lalr1.cc (b4_symbol): Ditto.
+
+2008-11-13  Akim Demaille  <demaille@gostai.com>
+
+       Compute at M4 time some of the subtractions.
+       * data/lalr1.cc (b4_substract): New.
+       (b4_rhs_data): Use it.
+
+2008-11-13  Akim Demaille  <demaille@gostai.com>
+
+       symbol::token.
+       This is allows the user to get the type of a token return by
+       yylex.
+       
+       * data/lalr1.cc (symbol::token): New.
+       (yytoknum_): Define when %define lex_symbol, independently of
+       %debug.
+       (yytoken_number_): Move into...
+       (symbol::token): here, since that's the only use.
+       The other one is YYPRINT which was not officially supported
+       by lalr1.cc, and anyway it did not work since YYPRINT uses this
+       array under a different name (yytoknum).
+
+2008-11-13  Akim Demaille  <demaille@gostai.com>
+
+       YYERRCODE.
+       * TODO (YYERRCODE): Mention the case of $undef.
+
+2008-11-13  Akim Demaille  <demaille@gostai.com>
+
+       TODO: YYPRINT.
+       * TODO (YYPRINT): New.
+
 2008-11-13  Akim Demaille  <demaille@gostai.com>
 
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