Clean up %skeleton and %language priority implementation.

[bison.git] / src / scan-gram.l

diff --git a/src/scan-gram.l b/src/scan-gram.l
index 6fa9f220f3ec5cc9f09f967ca768caf0a4379b30..697f52f054a73058ae287624c6fdf6ff9f757d46 100644 (file)
--- a/src/scan-gram.l
+++ b/src/scan-gram.l
@@ -1,12 +1,13 @@
 /* Bison Grammar Scanner                             -*- C -*-
 
-   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,10 +16,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301  USA
-*/
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 %option debug nodefault nounput noyywrap never-interactive
 %option prefix="gram_" outfile="lex.yy.c"
@@ -58,7 +56,7 @@ static size_t no_cr_read (FILE *, char *, size_t);
 #define YY_INPUT(buf, result, size) ((result) = no_cr_read (yyin, buf, size))
 
 /* A string representing the most recently saved token.  */
-char *last_string;
+static char *last_string;
 
 void
 gram_scanner_last_string_free (void)
@@ -158,7 +156,6 @@ splice       (\\[ \f\t\v]*\n)*
 {
   "%binary"                        return PERCENT_NONASSOC;
   "%code"                           return PERCENT_CODE;
-  "%code-top"                       return PERCENT_CODE_TOP;
   "%debug"                         return PERCENT_DEBUG;
   "%default"[-_]"prec"             return PERCENT_DEFAULT_PREC;
   "%define"                        return PERCENT_DEFINE;
@@ -172,6 +169,7 @@ splice       (\\[ \f\t\v]*\n)*
   "%fixed"[-_]"output"[-_]"files"   return PERCENT_YACC;
   "%initial-action"                return PERCENT_INITIAL_ACTION;
   "%glr-parser"                    return PERCENT_GLR_PARSER;
+  "%language"                      return PERCENT_LANGUAGE;
   "%left"                          return PERCENT_LEFT;
   "%lex-param"                     return PERCENT_LEX_PARAM;
   "%locations"                     return PERCENT_LOCATIONS;
@@ -186,11 +184,8 @@ splice      (\\[ \f\t\v]*\n)*
   "%parse-param"                   return PERCENT_PARSE_PARAM;
   "%prec"                          return PERCENT_PREC;
   "%printer"                       return PERCENT_PRINTER;
-  "%provides"                       return PERCENT_PROVIDES;
   "%pure"[-_]"parser"              return PERCENT_PURE_PARSER;
-  "%push"[-_]"parser"              return PERCENT_PUSH_PARSER;
   "%require"                       return PERCENT_REQUIRE;
-  "%requires"                       return PERCENT_REQUIRES;
   "%right"                         return PERCENT_RIGHT;
   "%skeleton"                      return PERCENT_SKELETON;
   "%start"                         return PERCENT_START;
@@ -210,7 +205,7 @@ splice       (\\[ \f\t\v]*\n)*
   "|"                     return PIPE;
   ";"                     return SEMICOLON;
   "<*>"                   return TYPE_TAG_ANY;
-  "<!>"                   return TYPE_TAG_NONE;
+  "<>"                    return TYPE_TAG_NONE;
 
   {id} {
     val->uniqstr = uniqstr_new (yytext);
@@ -800,5 +795,5 @@ gram_scanner_free (void)
 {
   obstack_free (&obstack_for_string, 0);
   /* Reclaim Flex's buffers.  */
-  yy_delete_buffer (YY_CURRENT_BUFFER);
+  yylex_destroy ();
 }