2007-02-07 Paolo Bonzini <bonzini@gnu.org>

[bison.git] / data / lalr1.cc

diff --git a/data/lalr1.cc b/data/lalr1.cc
index 8dcce38a3ff1946b8343796e68c360c533c359d6..63712265cb7a9fc91c1d3bcb0037f7259858c5f8 100644 (file)
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -1,8 +1,7 @@
-m4_divert(-1)
-
 # C++ skeleton for Bison
 
-# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
+# Inc.
 
 # 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
@@ -20,11 +19,15 @@ m4_divert(-1)
 # 02110-1301  USA
 
 m4_include(b4_pkgdatadir/[c++.m4])
-b4_check_percent_code_qualifiers([[requires]], [[provides]], [[top]])
+
+m4_define([b4_parser_class_name],
+          [b4_percent_define_get([[parser_class_name]])])
+m4_define([b4_namespace],
+          [b4_percent_define_get([[namespace]])])
 
 # The header is mandatory.
 b4_defines_if([],
-              [m4_fatal(b4_skeleton[: using %defines is mandatory])])
+              [b4_fatal([b4_skeleton[: using %%defines is mandatory]])])
 
 # Backward compatibility.
 m4_define([b4_location_constructors])
@@ -32,9 +35,9 @@ m4_include(b4_pkgdatadir/[location.cc])
 
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
-m4_divert(0)dnl
+m4_divert_push(0)dnl
 b4_defines_if(
-[@output b4_spec_defines_file
+[@output(b4_spec_defines_file@)
 b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++],
   [2002, 2003, 2004, 2005, 2006])
 dnl FIXME: This is wrong, we want computed header guards.
@@ -44,9 +47,7 @@ dnl FIXME: This is wrong, we want computed header guards.
 #ifndef PARSER_HEADER_H
 # define PARSER_HEADER_H
 
-]m4_ifdef([b4_percent_code_requires],
-[[/* Copy the %code "requires" blocks.  */
-]b4_user_code([b4_percent_code_requires])])[
+]b4_percent_code_get([[requires]])[
 
 #include <string>
 #include <iostream>
@@ -108,8 +109,9 @@ namespace ]b4_namespace[
 #ifndef YYSTYPE
 ]m4_ifdef([b4_stype],
 [    union semantic_type
+    {
 b4_user_stype
-       ;],
+    };],
 [m4_if(b4_tag_seen_flag, 0,
 [[    typedef int semantic_type;]],
 [[    typedef YYSTYPE semantic_type;]])])[
@@ -117,7 +119,7 @@ b4_user_stype
     typedef YYSTYPE semantic_type;
 #endif
     /// Symbol locations.
-    typedef ]b4_location_type[ location_type;
+    typedef ]b4_percent_define_get([[location_type]])[ location_type;
     /// Tokens.
     struct token
     {
@@ -288,7 +290,7 @@ b4_error_verbose_if([, int tok])[);
   };
 }
 
-]m4_ifset([b4_global_tokens_and_yystype],
+]b4_percent_define_flag_if([[global_tokens_and_yystype]],
 [b4_token_defines(b4_tokens)
 
 #ifndef YYSTYPE
@@ -296,18 +298,14 @@ b4_error_verbose_if([, int tok])[);
 # define YYSTYPE b4_namespace::b4_parser_class_name::semantic_type
 #endif
 ])
-m4_ifdef([b4_percent_code_provides],
-[[/* Copy the %code "provides" blocks.  */
-]b4_user_code([b4_percent_code_provides])])[]dnl
+b4_percent_code_get([[provides]])[]dnl
 
 [#endif /* ! defined PARSER_HEADER_H */]
 ])dnl
-@output b4_parser_file_name
+@output(b4_parser_file_name@)
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++],
   [2002, 2003, 2004, 2005, 2006])
-m4_ifdef([b4_percent_code_top],
-[[/* Copy the %code "top" blocks.  */
-]b4_user_code([b4_percent_code_top])])[]dnl
+b4_percent_code_get([[top]])[]dnl
 m4_if(b4_prefix, [yy], [],
 [
 // Take the name prefix into account.
@@ -321,10 +319,7 @@ b4_defines_if([[
 
 /* User implementation prologue.  */
 ]b4_user_post_prologue
-m4_ifdef([b4_percent_code],
-[[/* Copy the unqualified %code blocks.  */
-]b4_user_code([b4_percent_code])
-])[]dnl
+b4_percent_code_get[]dnl
 
 [#ifndef YY_
 # if YYENABLE_NLS
@@ -1018,7 +1013,7 @@ b4_error_verbose_if([, int tok])[)
     int yynrhs = yyr2_[yyrule];
     /* Print the symbols being reduced, and their result.  */
     *yycdebug_ << "Reducing stack by rule " << yyrule - 1
-              << " (line " << yylno << "), ";
+              << " (line " << yylno << "):" << std::endl;
     /* The symbols being reduced.  */
     for (int yyi = 0; yyi < yynrhs; yyi++)
       YY_SYMBOL_PRINT ("   $" << yyi + 1 << " =",
@@ -1060,7 +1055,7 @@ b4_error_verbose_if([, int tok])[)
 
 ]b4_epilogue
 dnl
-@output b4_dir_prefix[]stack.hh
+@output(b4_dir_prefix[]stack.hh@)
 b4_copyright([Stack handling for Bison parsers in C++],
   [2002, 2003, 2004, 2005, 2006])[
 
@@ -1159,4 +1154,4 @@ namespace ]b4_namespace[
 }
 
 #endif // not BISON_STACK_HH]
-m4_divert(-1)
+m4_divert_pop(0)