* data/glr.c (yyreportSyntaxError): Fix off-by-one error in

[bison.git] / data / lalr1.cc

diff --git a/data/lalr1.cc b/data/lalr1.cc
index 91360a529944002fae3f6506672f1a9258f0178e..abcdcd5d604163278d29f19f5b5919ad55cfd556 100644 (file)
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -2,7 +2,7 @@ m4_divert(-1)
 
 # C++ skeleton for Bison
 
 
 # C++ skeleton for Bison
 

-# Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2004, 2005, 2006 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
 
 # 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


@@ -20,17 +20,26 @@ m4_divert(-1)
 # 02110-1301  USA
 
 m4_include(b4_pkgdatadir/[c++.m4])
 # 02110-1301  USA
 
 m4_include(b4_pkgdatadir/[c++.m4])

+
+# The header is mandatory.
+b4_defines_if([],
+              [m4_fatal(b4_skeleton[: using %defines is mandatory])])
+
+# Backward compatibility.
+m4_define([b4_location_constructors])

 m4_include(b4_pkgdatadir/[location.cc])
 
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
 m4_divert(0)dnl
 m4_include(b4_pkgdatadir/[location.cc])
 
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
 m4_divert(0)dnl

-m4_if(b4_defines_flag, 0, [],
+b4_defines_if(

 [@output @output_header_name@
 [@output @output_header_name@

-b4_copyright([C++ Skeleton parser for LALR(1) parsing with Bison],
-             [2002, 2003, 2004, 2005])
+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.
 [
 dnl FIXME: This is wrong, we want computed header guards.
 [

+/* C++ LALR(1) parser skeleton written by Akim Demaille.  */
+

 #ifndef PARSER_HEADER_H
 # define PARSER_HEADER_H
 
 #ifndef PARSER_HEADER_H
 # define PARSER_HEADER_H
 


@@ -38,7 +47,7 @@ dnl FIXME: This is wrong, we want computed header guards.
 #include <iostream>
 #include "stack.hh"
 
 #include <iostream>
 #include "stack.hh"
 

-namespace yy
+namespace ]b4_namespace[

 {
   class position;
   class location;
 {
   class position;
   class location;


@@ -55,7 +64,7 @@ b4_syncline([@oline@], [@ofile@])[
 
 /* Enabling traces.  */
 #ifndef YYDEBUG
 
 /* Enabling traces.  */
 #ifndef YYDEBUG

-# define YYDEBUG ]b4_debug[
+# define YYDEBUG ]b4_debug_flag[

 #endif
 
 /* Enabling verbose error messages.  */
 #endif
 
 /* Enabling verbose error messages.  */


@@ -63,7 +72,7 @@ b4_syncline([@oline@], [@ofile@])[
 # undef YYERROR_VERBOSE
 # define YYERROR_VERBOSE 1
 #else
 # undef YYERROR_VERBOSE
 # define YYERROR_VERBOSE 1
 #else

-# define YYERROR_VERBOSE ]b4_error_verbose[
+# define YYERROR_VERBOSE ]b4_error_verbose_flag[

 #endif
 
 /* Enabling the token table.  */
 #endif
 
 /* Enabling the token table.  */


@@ -90,7 +99,7 @@ do {                                                  \
 } while (false)
 #endif
 
 } while (false)
 #endif
 

-namespace yy
+namespace ]b4_namespace[

 {
 
   /// A Bison parser.
 {
 
   /// A Bison parser.


@@ -98,12 +107,13 @@ namespace yy
   {
   public:
     /// Symbol semantic values.
   {
   public:
     /// Symbol semantic values.

-#if ! defined (YYSTYPE)
+#ifndef YYSTYPE

 ]m4_ifdef([b4_stype],
 ]m4_ifdef([b4_stype],

-[b4_syncline([b4_stype_line], [b4_file_name])
-    union semantic_type b4_stype;
+[    union semantic_type
+b4_stype

 /* Line __line__ of lalr1.cc.  */
 /* Line __line__ of lalr1.cc.  */

-b4_syncline([@oline@], [@ofile@])],
+b4_syncline([@oline@], [@ofile@])
+       ;],

 [    typedef int semantic_type;])[
 #else
     typedef YYSTYPE semantic_type;
 [    typedef int semantic_type;])[
 #else
     typedef YYSTYPE semantic_type;


@@ -115,17 +125,12 @@ b4_syncline([@oline@], [@ofile@])],
     {
       ]b4_token_enums(b4_tokens)[
     };
     {
       ]b4_token_enums(b4_tokens)[
     };

+    /// Token type.
+    typedef token::yytokentype token_type;

 
     /// Build a parser object.
 
     /// Build a parser object.

-    ]b4_parser_class_name[ (]b4_parse_param_decl[) :
-      yydebug_ (false),
-      yycdebug_ (&std::cerr)]b4_parse_param_cons[
-    {
-    }
-
-    virtual ~]b4_parser_class_name[ ()
-    {
-    }
+    ]b4_parser_class_name[ (]b4_parse_param_decl[);
+    virtual ~]b4_parser_class_name[ ();

 
     /// Parse.
     /// \returns  0 iff parsing succeeded.
 
     /// Parse.
     /// \returns  0 iff parsing succeeded.


@@ -156,13 +161,20 @@ b4_syncline([@oline@], [@ofile@])],
 b4_error_verbose_if([, int tok])[);
 
 #if YYDEBUG
 b4_error_verbose_if([, int tok])[);
 
 #if YYDEBUG

+    /// \brief Report a symbol value on the debug stream.
+    /// \param yytype       The token type.
+    /// \param yyvaluep     Its semantic value.
+    /// \param yylocationp  Its location.
+    virtual void yy_symbol_value_print_ (int yytype,
+                                        const semantic_type* yyvaluep,
+                                        const location_type* yylocationp);

     /// \brief Report a symbol on the debug stream.
     /// \param yytype       The token type.
     /// \param yyvaluep     Its semantic value.
     /// \param yylocationp  Its location.
     /// \brief Report a symbol on the debug stream.
     /// \param yytype       The token type.
     /// \param yyvaluep     Its semantic value.
     /// \param yylocationp  Its location.

-    virtual void yysymprint_ (int yytype,
-                             const semantic_type* yyvaluep,
-                             const location_type* yylocationp);
+    virtual void yy_symbol_print_ (int yytype,
+                                  const semantic_type* yyvaluep,
+                                  const location_type* yylocationp);

 #endif /* ! YYDEBUG */
 
 
 #endif /* ! YYDEBUG */
 
 


@@ -237,13 +249,13 @@ b4_error_verbose_if([, int tok])[);
     /// For each scanner token number, its symbol number.
     static const ]b4_int_type_for([b4_toknum])[ yytoken_number_[];
     /// Report on the debug stream that the rule \a r is going to be reduced.
     /// For each scanner token number, its symbol number.
     static const ]b4_int_type_for([b4_toknum])[ yytoken_number_[];
     /// Report on the debug stream that the rule \a r is going to be reduced.

-    virtual void yyreduce_print_ (int r);
+    virtual void yy_reduce_print_ (int r);

     /// Print the state stack on the debug stream.
     virtual void yystack_print_ ();
 #endif
 
     /// Print the state stack on the debug stream.
     virtual void yystack_print_ ();
 #endif
 

-    /// Convert a scanner token number to a symbol number.
-    inline token_number_type yytranslate_ (int token);
+    /// Convert a scanner token number \a t to a symbol number.
+    token_number_type yytranslate_ (int t);

 
     /// \brief Reclaim the memory associated to a symbol.
     /// \param yymsg        Why this token is reclaimed.
 
     /// \brief Reclaim the memory associated to a symbol.
     /// \param yymsg        Why this token is reclaimed.


@@ -251,9 +263,9 @@ b4_error_verbose_if([, int tok])[);
     /// \param yyvaluep     Its semantic value.
     /// \param yylocationp  Its location.
     inline void yydestruct_ (const char* yymsg,
     /// \param yyvaluep     Its semantic value.
     /// \param yylocationp  Its location.
     inline void yydestruct_ (const char* yymsg,

-                             int yytype,
-                             semantic_type* yyvaluep,
-                             location_type* yylocationp);
+                            int yytype,
+                            semantic_type* yyvaluep,
+                            location_type* yylocationp);

 
     /// Pop \a n symbols the three stacks.
     inline void yypop_ (unsigned int n = 1);
 
     /// Pop \a n symbols the three stacks.
     inline void yypop_ (unsigned int n = 1);


@@ -283,21 +295,20 @@ b4_error_verbose_if([, int tok])[);
 [b4_token_defines(b4_tokens)
 
 #ifndef YYSTYPE
 [b4_token_defines(b4_tokens)
 
 #ifndef YYSTYPE

- /* Redirection for backward compatibility. */
-# define YYSTYPE yy::b4_parser_class_name::semantic_type
+ /* Redirection for backward compatibility.  */
+# define YYSTYPE b4_namespace::b4_parser_class_name::semantic_type

 #endif
 ])[
 #endif /* ! defined PARSER_HEADER_H */]
 ])dnl
 @output @output_parser_name@
 #endif
 ])[
 #endif /* ! defined PARSER_HEADER_H */]
 ])dnl
 @output @output_parser_name@

-b4_copyright([C++ Skeleton parser for LALR(1) parsing with Bison],
-             [2002, 2003, 2004, 2005])
-m4_if(b4_prefix[], [yy], [],
+b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++],
+  [2002, 2003, 2004, 2005, 2006])
+m4_if(b4_prefix, [yy], [],

 [
 // Take the name prefix into account.
 #define yylex   b4_prefix[]lex])
 [
 // Take the name prefix into account.
 #define yylex   b4_prefix[]lex])

-m4_if(b4_defines_flag, 0, [],
-[
+b4_defines_if([

 #include @output_header_name@])[
 
 /* User implementation prologue.  */
 #include @output_header_name@])[
 
 /* User implementation prologue.  */


@@ -319,9 +330,9 @@ b4_syncline([@oline@], [@ofile@])[
 #endif
 
 /* Suppress unused-variable warnings by "using" E.  */
 #endif
 
 /* Suppress unused-variable warnings by "using" E.  */

-#define YYUSE(e) do {;} while (false && (e))
+#define YYUSE(e) ((void) (e))

 
 

-/* A pseudo ostream that takes yydebug_ into account. */
+/* A pseudo ostream that takes yydebug_ into account.  */

 # define YYCDEBUG                                                      \
   for (bool yydebugcond_ = yydebug_; yydebugcond_; yydebugcond_ = false)       \
     (*yycdebug_)
 # define YYCDEBUG                                                      \
   for (bool yydebugcond_ = yydebug_; yydebugcond_; yydebugcond_ = false)       \
     (*yycdebug_)


@@ -333,8 +344,8 @@ b4_syncline([@oline@], [@ofile@])[
 do {                                                   \
   if (yydebug_)                                                \
     {                                                  \
 do {                                                   \
   if (yydebug_)                                                \
     {                                                  \

-      *yycdebug_ << (Title) << ' ';                    \
-      yysymprint_ ((Type), (Value), (Location));       \
+      *yycdebug_ << Title << ' ';                      \
+      yy_symbol_print_ ((Type), (Value), (Location));  \

       *yycdebug_ << std::endl;                         \
     }                                                  \
 } while (false)
       *yycdebug_ << std::endl;                         \
     }                                                  \
 } while (false)


@@ -342,7 +353,7 @@ do {                                                        \
 # define YY_REDUCE_PRINT(Rule)         \
 do {                                   \
   if (yydebug_)                                \
 # define YY_REDUCE_PRINT(Rule)         \
 do {                                   \
   if (yydebug_)                                \

-    yyreduce_print_ (Rule);            \
+    yy_reduce_print_ (Rule);           \

 } while (false)
 
 # define YY_STACK_PRINT()              \
 } while (false)
 
 # define YY_STACK_PRINT()              \


@@ -363,373 +374,392 @@ do {                                    \
 #define YYABORT                goto yyabortlab
 #define YYERROR                goto yyerrorlab
 
 #define YYABORT                goto yyabortlab
 #define YYERROR                goto yyerrorlab
 

+namespace ]b4_namespace[
+{

 #if YYERROR_VERBOSE
 
 #if YYERROR_VERBOSE
 

-/* Return YYSTR after stripping away unnecessary quotes and
-   backslashes, so that it's suitable for yyerror.  The heuristic is
-   that double-quoting is unnecessary unless the string contains an
-   apostrophe, a comma, or backslash (other than backslash-backslash).
-   YYSTR is taken from yytname.  */
-std::string
-yy::]b4_parser_class_name[::yytnamerr_ (const char *yystr)
-{
-  if (*yystr == '"')
-    {
-      std::string yyr = "";
-      char const *yyp = yystr;
+  /* Return YYSTR after stripping away unnecessary quotes and
+     backslashes, so that it's suitable for yyerror.  The heuristic is
+     that double-quoting is unnecessary unless the string contains an
+     apostrophe, a comma, or backslash (other than backslash-backslash).
+     YYSTR is taken from yytname.  */
+  std::string
+  ]b4_parser_class_name[::yytnamerr_ (const char *yystr)
+  {
+    if (*yystr == '"')
+      {
+        std::string yyr = "";
+        char const *yyp = yystr;
+
+        for (;;)
+          switch (*++yyp)
+            {
+            case '\'':
+            case ',':
+              goto do_not_strip_quotes;
+
+            case '\\':
+              if (*++yyp != '\\')
+                goto do_not_strip_quotes;
+              /* Fall through.  */
+            default:
+              yyr += *yyp;
+              break;
+
+            case '"':
+              return yyr;
+            }
+      do_not_strip_quotes: ;
+      }
+
+    return yystr;
+  }

 
 

-      for (;;)
-       switch (*++yyp)
-         {
-         case '\'':
-         case ',':
-           goto do_not_strip_quotes;
-
-         case '\\':
-           if (*++yyp != '\\')
-             goto do_not_strip_quotes;
-           /* Fall through.  */
-         default:
-           yyr += *yyp;
-           break;
-
-         case '"':
-           return yyr;
-         }
-    do_not_strip_quotes: ;
-    }
+#endif

 
 

-  return yystr;
-}
+  /// Build a parser object.
+  ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)
+    : yydebug_ (false),
+      yycdebug_ (&std::cerr)]b4_parse_param_cons[
+  {
+  }

 
 

-#endif
+  ]b4_parser_class_name::~b4_parser_class_name[ ()
+  {
+  }

 
 #if YYDEBUG
 
 #if YYDEBUG

-/*--------------------------------.
-| Print this symbol on YYOUTPUT.  |
-`--------------------------------*/
+  /*--------------------------------.
+  | Print this symbol on YYOUTPUT.  |
+  `--------------------------------*/

 
 

-void
-yy::]b4_parser_class_name[::yysymprint_ (int yytype,
-                         const semantic_type* yyvaluep, const location_type* yylocationp)
-{
-  /* Backward compatibility, but should be removed eventually. */
-  std::ostream& cdebug_ = *yycdebug_;
+  inline void
+  ]b4_parser_class_name[::yy_symbol_value_print_ (int yytype,
+                          const semantic_type* yyvaluep, const location_type* yylocationp)
+  {
+    YYUSE (yylocationp);
+    YYUSE (yyvaluep);
+    switch (yytype)
+      {
+  ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
+[       default:
+         break;
+      }
+  }

 
 

-  YYUSE (!&cdebug_);
-  YYUSE (yylocationp);
-  YYUSE (yyvaluep);

 
 

-  *yycdebug_ << (yytype < yyntokens_ ? "token" : "nterm")
-            << ' ' << yytname_[yytype] << " ("
-             << *yylocationp << ": ";
-  switch (yytype)
-    {
-]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
-[      default:
-        break;
-    }
-  *yycdebug_ << ')';
-}
+  void
+  ]b4_parser_class_name[::yy_symbol_print_ (int yytype,
+                          const semantic_type* yyvaluep, const location_type* yylocationp)
+  {
+    *yycdebug_ << (yytype < yyntokens_ ? "token" : "nterm")
+              << ' ' << yytname_[yytype] << " ("
+              << *yylocationp << ": ";
+    yy_symbol_value_print_ (yytype, yyvaluep, yylocationp);
+    *yycdebug_ << ')';
+  }

 #endif /* ! YYDEBUG */
 
 #endif /* ! YYDEBUG */
 

-void
-yy::]b4_parser_class_name[::yydestruct_ (const char* yymsg,
-                         int yytype, semantic_type* yyvaluep, location_type* yylocationp)
-{
-  YYUSE (yylocationp);
-  YYUSE (yymsg);
-  YYUSE (yyvaluep);
-
-  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
-
-  switch (yytype)
-    {
-]m4_map([b4_symbol_actions], m4_defn([b4_symbol_destructors]))[
-      default:
-        break;
-    }
-}
+  void
+  ]b4_parser_class_name[::yydestruct_ (const char* yymsg,
+                          int yytype, semantic_type* yyvaluep, location_type* yylocationp)
+  {
+    YYUSE (yylocationp);
+    YYUSE (yymsg);
+    YYUSE (yyvaluep);
+
+    YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+    switch (yytype)
+      {
+  ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_destructors]))[
+       default:
+         break;
+      }
+  }

 
 

-void
-yy::]b4_parser_class_name[::yypop_ (unsigned int n)
-{
-  yystate_stack_.pop (n);
-  yysemantic_stack_.pop (n);
-  yylocation_stack_.pop (n);
-}
+  void
+  ]b4_parser_class_name[::yypop_ (unsigned int n)
+  {
+    yystate_stack_.pop (n);
+    yysemantic_stack_.pop (n);
+    yylocation_stack_.pop (n);
+  }

 
 

-std::ostream&
-yy::]b4_parser_class_name[::debug_stream () const
-{
-  return *yycdebug_;
-}
+  std::ostream&
+  ]b4_parser_class_name[::debug_stream () const
+  {
+    return *yycdebug_;
+  }

 
 

-void
-yy::]b4_parser_class_name[::set_debug_stream (std::ostream& o)
-{
-  yycdebug_ = &o;
-}
+  void
+  ]b4_parser_class_name[::set_debug_stream (std::ostream& o)
+  {
+    yycdebug_ = &o;
+  }

 
 
 
 

-yy::]b4_parser_class_name[::debug_level_type
-yy::]b4_parser_class_name[::debug_level () const
-{
-  return yydebug_;
-}
+  ]b4_parser_class_name[::debug_level_type
+  ]b4_parser_class_name[::debug_level () const
+  {
+    return yydebug_;
+  }

 
 

-void
-yy::]b4_parser_class_name[::set_debug_level (debug_level_type l)
-{
-  yydebug_ = l;
-}
+  void
+  ]b4_parser_class_name[::set_debug_level (debug_level_type l)
+  {
+    yydebug_ = l;
+  }

 
 
 
 

-int
-yy::]b4_parser_class_name[::parse ()
-{
-  /// Look-ahead and look-ahead in internal form.
-  int yychar = yyempty_;
-  int yytoken = 0;
+  int
+  ]b4_parser_class_name[::parse ()
+  {
+    /// Look-ahead and look-ahead in internal form.
+    int yychar = yyempty_;
+    int yytoken = 0;

 
 

-  /* State.  */
-  int yyn;
-  int yylen;
-  int yystate = 0;
+    /* State.  */
+    int yyn;
+    int yylen = 0;
+    int yystate = 0;

 
 

-  /* Error handling. */
-  int yynerrs_ = 0;
-  int yyerrstatus_ = 0;
+    /* Error handling.  */
+    int yynerrs_ = 0;
+    int yyerrstatus_ = 0;

 
 

-  /// Semantic value of the look-ahead.
-  semantic_type yylval;
-  /// Location of the look-ahead.
-  location_type yylloc;
-  /// The locations where the error started and ended.
-  location yyerror_range[2];
+    /// Semantic value of the look-ahead.
+    semantic_type yylval;
+    /// Location of the look-ahead.
+    location_type yylloc;
+    /// The locations where the error started and ended.
+    location yyerror_range[2];

 
 

-  /// $$.
-  semantic_type yyval;
-  /// @@$.
-  location_type yyloc;
+    /// $$.
+    semantic_type yyval;
+    /// @@$.
+    location_type yyloc;

 
 

-  int yyresult;
+    int yyresult;

 
 

-  YYCDEBUG << "Starting parse" << std::endl;
+    YYCDEBUG << "Starting parse" << std::endl;

 
 ]m4_ifdef([b4_initial_action], [
 m4_pushdef([b4_at_dollar],     [yylloc])dnl
 m4_pushdef([b4_dollar_dollar], [yylval])dnl
 
 ]m4_ifdef([b4_initial_action], [
 m4_pushdef([b4_at_dollar],     [yylloc])dnl
 m4_pushdef([b4_dollar_dollar], [yylval])dnl

-  /* User initialization code. */
-  b4_initial_action
+    /* User initialization code.  */
+    b4_initial_action

 m4_popdef([b4_dollar_dollar])dnl
 m4_popdef([b4_at_dollar])dnl
 m4_popdef([b4_dollar_dollar])dnl
 m4_popdef([b4_at_dollar])dnl

-/* Line __line__ of yacc.c.  */
+  /* Line __line__ of yacc.c.  */

 b4_syncline([@oline@], [@ofile@])])dnl
 
 b4_syncline([@oline@], [@ofile@])])dnl
 

-[  /* Initialize the stacks.  The initial state will be pushed in
-     yynewstate, since the latter expects the semantical and the
-     location values to have been already stored, initialize these
-     stacks with a primary value.  */
-  yystate_stack_ = state_stack_type (0);
-  yysemantic_stack_ = semantic_stack_type (0);
-  yylocation_stack_ = location_stack_type (0);
-  yysemantic_stack_.push (yylval);
-  yylocation_stack_.push (yylloc);
-
-  /* New state.  */
-yynewstate:
-  yystate_stack_.push (yystate);
-  YYCDEBUG << "Entering state " << yystate << std::endl;
-  goto yybackup;
-
-  /* Backup.  */
-yybackup:
-
-  /* Try to take a decision without look-ahead.  */
-  yyn = yypact_[yystate];
-  if (yyn == yypact_ninf_)
-    goto yydefault;
-
-  /* Read a look-ahead token.  */
-  if (yychar == yyempty_)
-    {
-      YYCDEBUG << "Reading a token: ";
-      yychar = ]b4_c_function_call([yylex], [int],
-[[YYSTYPE*], [&yylval]][]dnl
-b4_location_if([, [[location*], [&yylloc]]])dnl
+  [  /* Initialize the stacks.  The initial state will be pushed in
+       yynewstate, since the latter expects the semantical and the
+       location values to have been already stored, initialize these
+       stacks with a primary value.  */
+    yystate_stack_ = state_stack_type (0);
+    yysemantic_stack_ = semantic_stack_type (0);
+    yylocation_stack_ = location_stack_type (0);
+    yysemantic_stack_.push (yylval);
+    yylocation_stack_.push (yylloc);
+
+    /* New state.  */
+  yynewstate:
+    yystate_stack_.push (yystate);
+    YYCDEBUG << "Entering state " << yystate << std::endl;
+    goto yybackup;
+
+    /* Backup.  */
+  yybackup:
+
+    /* Try to take a decision without look-ahead.  */
+    yyn = yypact_[yystate];
+    if (yyn == yypact_ninf_)
+      goto yydefault;
+
+    /* Read a look-ahead token.  */
+    if (yychar == yyempty_)
+      {
+       YYCDEBUG << "Reading a token: ";
+       yychar = ]b4_c_function_call([yylex], [int],
+                                    [[YYSTYPE*], [&yylval]][]dnl
+b4_locations_if([, [[location*], [&yylloc]]])dnl

 m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
 m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;

-    }
-
-
-  /* Convert token to internal form.  */
-  if (yychar <= yyeof_)
-    {
-      yychar = yytoken = yyeof_;
-      YYCDEBUG << "Now at end of input." << std::endl;
-    }
-  else
-    {
-      yytoken = yytranslate_ (yychar);
-      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
-    }
-
-  /* If the proper action on seeing token YYTOKEN is to reduce or to
-     detect an error, take that action.  */
-  yyn += yytoken;
-  if (yyn < 0 || yylast_ < yyn || yycheck_[yyn] != yytoken)
-    goto yydefault;
-
-  /* Reduce or error.  */
-  yyn = yytable_[yyn];
-  if (yyn <= 0)
-    {
-      if (yyn == 0 || yyn == yytable_ninf_)
+      }
+
+
+    /* Convert token to internal form.  */
+    if (yychar <= yyeof_)
+      {
+       yychar = yytoken = yyeof_;
+       YYCDEBUG << "Now at end of input." << std::endl;
+      }
+    else
+      {
+       yytoken = yytranslate_ (yychar);
+       YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+      }
+
+    /* If the proper action on seeing token YYTOKEN is to reduce or to
+       detect an error, take that action.  */
+    yyn += yytoken;
+    if (yyn < 0 || yylast_ < yyn || yycheck_[yyn] != yytoken)
+      goto yydefault;
+
+    /* Reduce or error.  */
+    yyn = yytable_[yyn];
+    if (yyn <= 0)
+      {
+       if (yyn == 0 || yyn == yytable_ninf_)

        goto yyerrlab;
        goto yyerrlab;

-      yyn = -yyn;
-      goto yyreduce;
-    }
+       yyn = -yyn;
+       goto yyreduce;
+      }
+
+    /* Accept?  */
+    if (yyn == yyfinal_)
+      goto yyacceptlab;
+
+    /* Shift the look-ahead token.  */
+    YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+    /* Discard the token being shifted unless it is eof.  */
+    if (yychar != yyeof_)
+      yychar = yyempty_;
+
+    yysemantic_stack_.push (yylval);
+    yylocation_stack_.push (yylloc);
+
+    /* Count tokens shifted since error; after three, turn off error
+       status.  */
+    if (yyerrstatus_)
+      --yyerrstatus_;
+
+    yystate = yyn;
+    goto yynewstate;
+
+  /*-----------------------------------------------------------.
+  | yydefault -- do the default action for the current state.  |
+  `-----------------------------------------------------------*/
+  yydefault:
+    yyn = yydefact_[yystate];
+    if (yyn == 0)
+      goto yyerrlab;
+    goto yyreduce;
+
+  /*-----------------------------.
+  | yyreduce -- Do a reduction.  |
+  `-----------------------------*/
+  yyreduce:
+    yylen = yyr2_[yyn];
+    /* If YYLEN is nonzero, implement the default value of the action:
+       `$$ = $1'.  Otherwise, use the top of the stack.
+
+       Otherwise, the following line sets YYVAL to garbage.
+       This behavior is undocumented and Bison
+       users should not rely upon it.  */
+    if (yylen)
+      yyval = yysemantic_stack_[yylen - 1];
+    else
+      yyval = yysemantic_stack_[0];

 
 

-  /* Accept?  */
-  if (yyn == yyfinal_)
-    goto yyacceptlab;
-
-  /* Shift the look-ahead token.  */
-  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
-
-  /* Discard the token being shifted unless it is eof.  */
-  if (yychar != yyeof_)
-    yychar = yyempty_;
-
-  yysemantic_stack_.push (yylval);
-  yylocation_stack_.push (yylloc);
-
-  /* Count tokens shifted since error; after three, turn off error
-     status.  */
-  if (yyerrstatus_)
-    --yyerrstatus_;
-
-  yystate = yyn;
-  goto yynewstate;
-
-/*-----------------------------------------------------------.
-| yydefault -- do the default action for the current state.  |
-`-----------------------------------------------------------*/
-yydefault:
-  yyn = yydefact_[yystate];
-  if (yyn == 0)
-    goto yyerrlab;
-  goto yyreduce;
-
-/*-----------------------------.
-| yyreduce -- Do a reduction.  |
-`-----------------------------*/
-yyreduce:
-  yylen = yyr2_[yyn];
-  /* If LEN_ is nonzero, implement the default value of the action:
-     `$$ = $1'.  Otherwise, use the top of the stack.
-
-     Otherwise, the following line sets YYVAL to garbage.
-     This behavior is undocumented and Bison
-     users should not rely upon it.  */
-  if (yylen)
-    yyval = yysemantic_stack_[yylen - 1];
-  else
-    yyval = yysemantic_stack_[0];
-
-  {
-    slice<location_type, location_stack_type> slice (yylocation_stack_, yylen);
-    YYLLOC_DEFAULT (yyloc, slice, yylen);
-  }
-  YY_REDUCE_PRINT (yyn);
-  switch (yyn)

     {
     {

-      ]b4_actions[
-      default: break;
+      slice<location_type, location_stack_type> slice (yylocation_stack_, yylen);
+      YYLLOC_DEFAULT (yyloc, slice, yylen);

     }
     }

-
-]/* Line __line__ of lalr1.cc.  */
+    YY_REDUCE_PRINT (yyn);
+    switch (yyn)
+      {
+       ]b4_actions
+    /* Line __line__ of lalr1.cc.  */

 b4_syncline([@oline@], [@ofile@])[
 b4_syncline([@oline@], [@ofile@])[

-
-  yypop_ (yylen);
-
-  YY_STACK_PRINT ();
-
-  yysemantic_stack_.push (yyval);
-  yylocation_stack_.push (yyloc);
-
-  /* Shift the result of the reduction.  */
-  yyn = yyr1_[yyn];
-  yystate = yypgoto_[yyn - yyntokens_] + yystate_stack_[0];
-  if (0 <= yystate && yystate <= yylast_
-      && yycheck_[yystate] == yystate_stack_[0])
-    yystate = yytable_[yystate];
-  else
-    yystate = yydefgoto_[yyn - yyntokens_];
-  goto yynewstate;
-
-/*------------------------------------.
-| yyerrlab -- here on detecting error |
-`------------------------------------*/
-yyerrlab:
-  /* If not already recovering from an error, report this error.  */
-  if (!yyerrstatus_)
-    {
-      ++yynerrs_;
-      error (yylloc, yysyntax_error_ (yystate]dnl
+       default: break;
+      }
+    YY_SYMBOL_PRINT ("-> $$ =", yyr1_[yyn], &yyval, &yyloc);
+
+    yypop_ (yylen);
+    yylen = 0;
+    YY_STACK_PRINT ();
+
+    yysemantic_stack_.push (yyval);
+    yylocation_stack_.push (yyloc);
+
+    /* Shift the result of the reduction.  */
+    yyn = yyr1_[yyn];
+    yystate = yypgoto_[yyn - yyntokens_] + yystate_stack_[0];
+    if (0 <= yystate && yystate <= yylast_
+       && yycheck_[yystate] == yystate_stack_[0])
+      yystate = yytable_[yystate];
+    else
+      yystate = yydefgoto_[yyn - yyntokens_];
+    goto yynewstate;
+
+  /*------------------------------------.
+  | yyerrlab -- here on detecting error |
+  `------------------------------------*/
+  yyerrlab:
+    /* If not already recovering from an error, report this error.  */
+    if (!yyerrstatus_)
+      {
+       ++yynerrs_;
+       error (yylloc, yysyntax_error_ (yystate]dnl

 b4_error_verbose_if([, yytoken])[));
 b4_error_verbose_if([, yytoken])[));

-    }
+      }

 
 

-  yyerror_range[0] = yylloc;
-  if (yyerrstatus_ == 3)
-    {
-      /* If just tried and failed to reuse look-ahead token after an
+    yyerror_range[0] = yylloc;
+    if (yyerrstatus_ == 3)
+      {
+       /* If just tried and failed to reuse look-ahead token after an

         error, discard it.  */
 
         error, discard it.  */
 

-      if (yychar <= yyeof_)
-        {
+       if (yychar <= yyeof_)
+         {

          /* Return failure if at end of input.  */
          if (yychar == yyeof_)
            YYABORT;
          /* Return failure if at end of input.  */
          if (yychar == yyeof_)
            YYABORT;

-        }
-      else
-        {
-          yydestruct_ ("Error: discarding", yytoken, &yylval, &yylloc);
-          yychar = yyempty_;
-        }
-    }
-
-  /* Else will try to reuse look-ahead token after shifting the error
-     token.  */
-  goto yyerrlab1;
-
-
-/*---------------------------------------------------.
-| yyerrorlab -- error raised explicitly by YYERROR.  |
-`---------------------------------------------------*/
-yyerrorlab:
-
-  /* Pacify compilers like GCC when the user code never invokes
-     YYERROR and the label yyerrorlab therefore never appears in user
-     code.  */
-  if (false)
-    goto yyerrorlab;
-
-  yyerror_range[0] = yylocation_stack_[yylen - 1];
-  yypop_ (yylen);
-  yystate = yystate_stack_[0];
-  goto yyerrlab1;
-
-/*-------------------------------------------------------------.
-| yyerrlab1 -- common code for both syntax error and YYERROR.  |
-`-------------------------------------------------------------*/
-yyerrlab1:
-  yyerrstatus_ = 3;    /* Each real token shifted decrements this.  */
-
-  for (;;)
-    {
-      yyn = yypact_[yystate];
-      if (yyn != yypact_ninf_)
+         }
+       else
+         {
+           yydestruct_ ("Error: discarding", yytoken, &yylval, &yylloc);
+           yychar = yyempty_;
+         }
+      }
+
+    /* Else will try to reuse look-ahead token after shifting the error
+       token.  */
+    goto yyerrlab1;
+
+
+  /*---------------------------------------------------.
+  | yyerrorlab -- error raised explicitly by YYERROR.  |
+  `---------------------------------------------------*/
+  yyerrorlab:
+
+    /* Pacify compilers like GCC when the user code never invokes
+       YYERROR and the label yyerrorlab therefore never appears in user
+       code.  */
+    if (false)
+      goto yyerrorlab;
+
+    yyerror_range[0] = yylocation_stack_[yylen - 1];
+    /* Do not reclaim the symbols of the rule which action triggered
+       this YYERROR.  */
+    yypop_ (yylen);
+    yylen = 0;
+    yystate = yystate_stack_[0];
+    goto yyerrlab1;
+
+  /*-------------------------------------------------------------.
+  | yyerrlab1 -- common code for both syntax error and YYERROR.  |
+  `-------------------------------------------------------------*/
+  yyerrlab1:
+    yyerrstatus_ = 3;  /* Each real token shifted decrements this.  */
+
+    for (;;)
+      {
+       yyn = yypact_[yystate];
+       if (yyn != yypact_ninf_)

        {
          yyn += yyterror_;
          if (0 <= yyn && yyn <= yylast_ && yycheck_[yyn] == yyterror_)
        {
          yyn += yyterror_;
          if (0 <= yyn && yyn <= yylast_ && yycheck_[yyn] == yyterror_)


@@ -740,291 +770,301 @@ yyerrlab1:
            }
        }
 
            }
        }
 

-      /* Pop the current state because it cannot handle the error token.  */
-      if (yystate_stack_.height () == 1)
+       /* Pop the current state because it cannot handle the error token.  */
+       if (yystate_stack_.height () == 1)

        YYABORT;
 
        YYABORT;
 

-      yyerror_range[0] = yylocation_stack_[0];
-      yydestruct_ ("Error: popping",
-                   yystos_[yystate],
-                   &yysemantic_stack_[0], &yylocation_stack_[0]);
-      yypop_ ();
-      yystate = yystate_stack_[0];
-      YY_STACK_PRINT ();
-    }
-
-  if (yyn == yyfinal_)
-    goto yyacceptlab;
-
-  yyerror_range[1] = yylloc;
-  // Using YYLLOC is tempting, but would change the location of
-  // the look-ahead.  YYLOC is available though.
-  YYLLOC_DEFAULT (yyloc, yyerror_range - 1, 2);
-  yysemantic_stack_.push (yylval);
-  yylocation_stack_.push (yyloc);
-
-  /* Shift the error token. */
-  YY_SYMBOL_PRINT ("Shifting", yystos_[yyn],
+       yyerror_range[0] = yylocation_stack_[0];
+       yydestruct_ ("Error: popping",
+                    yystos_[yystate],
+                    &yysemantic_stack_[0], &yylocation_stack_[0]);
+       yypop_ ();
+       yystate = yystate_stack_[0];
+       YY_STACK_PRINT ();
+      }
+
+    if (yyn == yyfinal_)
+      goto yyacceptlab;
+
+    yyerror_range[1] = yylloc;
+    // Using YYLLOC is tempting, but would change the location of
+    // the look-ahead.  YYLOC is available though.
+    YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+    yysemantic_stack_.push (yylval);
+    yylocation_stack_.push (yyloc);
+
+    /* Shift the error token.  */
+    YY_SYMBOL_PRINT ("Shifting", yystos_[yyn],

                   &yysemantic_stack_[0], &yylocation_stack_[0]);
 
                   &yysemantic_stack_[0], &yylocation_stack_[0]);
 

-  yystate = yyn;
-  goto yynewstate;
-
-  /* Accept.  */
-yyacceptlab:
-  yyresult = 0;
-  goto yyreturn;
-
-  /* Abort.  */
-yyabortlab:
-  yyresult = 1;
-  goto yyreturn;
-
-yyreturn:
-  if (yychar != yyeof_ && yychar != yyempty_)
-    yydestruct_ ("Cleanup: discarding lookahead", yytoken, &yylval, &yylloc);
-
-  while (yystate_stack_.height () != 1)
-    {
-      yydestruct_ ("Cleanup: popping",
+    yystate = yyn;
+    goto yynewstate;
+
+    /* Accept.  */
+  yyacceptlab:
+    yyresult = 0;
+    goto yyreturn;
+
+    /* Abort.  */
+  yyabortlab:
+    yyresult = 1;
+    goto yyreturn;
+
+  yyreturn:
+    if (yychar != yyeof_ && yychar != yyempty_)
+      yydestruct_ ("Cleanup: discarding lookahead", yytoken, &yylval, &yylloc);
+
+    /* Do not reclaim the symbols of the rule which action triggered
+       this YYABORT or YYACCEPT.  */
+    yypop_ (yylen);
+    while (yystate_stack_.height () != 1)
+      {
+       yydestruct_ ("Cleanup: popping",

                   yystos_[yystate_stack_[0]],
                   &yysemantic_stack_[0],
                   &yylocation_stack_[0]);
                   yystos_[yystate_stack_[0]],
                   &yysemantic_stack_[0],
                   &yylocation_stack_[0]);

-      yypop_ ();
-    }
+       yypop_ ();
+      }

 
 

-  return yyresult;
-}
+    return yyresult;
+  }

 
 

-// Generate an error message.
-std::string
-yy::]b4_parser_class_name[::yysyntax_error_ (int yystate]dnl
+  // Generate an error message.
+  std::string
+  ]b4_parser_class_name[::yysyntax_error_ (int yystate]dnl

 b4_error_verbose_if([, int tok])[)
 b4_error_verbose_if([, int tok])[)

-{
-  std::string res;
+  {
+    std::string res;
+    YYUSE (yystate);

 #if YYERROR_VERBOSE
 #if YYERROR_VERBOSE

-  int yyn = yypact_[yystate];
-  if (yypact_ninf_ < yyn && yyn < yylast_)
-    {
-      /* Start YYX at -YYN if negative to avoid negative indexes in
-         YYCHECK.  */
-      int yyxbegin = yyn < 0 ? -yyn : 0;
-
-      /* Stay within bounds of both yycheck and yytname.  */
-      int yychecklim = yylast_ - yyn;
-      int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
-      int count = 0;
-      for (int x = yyxbegin; x < yyxend; ++x)
-        if (yycheck_[x + yyn] == x && x != yyterror_)
-          ++count;
-
-      // FIXME: This method of building the message is not compatible
-      // with internationalization.  It should work like yacc.c does it.
-      // That is, first build a string that looks like this:
-      // "syntax error, unexpected %s or %s or %s"
-      // Then, invoke YY_ on this string.
-      // Finally, use the string as a format to output
-      // yytname_[tok], etc.
-      // Until this gets fixed, this message appears in English only.
-      res = "syntax error, unexpected ";
-      res += yytnamerr_ (yytname_[tok]);
-      if (count < 5)
-        {
-          count = 0;
-          for (int x = yyxbegin; x < yyxend; ++x)
-            if (yycheck_[x + yyn] == x && x != yyterror_)
-              {
-                res += (!count++) ? ", expecting " : " or ";
-                res += yytnamerr_ (yytname_[x]);
-              }
-        }
-    }
-  else
+    int yyn = yypact_[yystate];
+    if (yypact_ninf_ < yyn && yyn <= yylast_)
+      {
+       /* Start YYX at -YYN if negative to avoid negative indexes in
+          YYCHECK.  */
+       int yyxbegin = yyn < 0 ? -yyn : 0;
+
+       /* Stay within bounds of both yycheck and yytname.  */
+       int yychecklim = yylast_ - yyn + 1;
+       int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
+       int count = 0;
+       for (int x = yyxbegin; x < yyxend; ++x)
+         if (yycheck_[x + yyn] == x && x != yyterror_)
+           ++count;
+
+       // FIXME: This method of building the message is not compatible
+       // with internationalization.  It should work like yacc.c does it.
+       // That is, first build a string that looks like this:
+       // "syntax error, unexpected %s or %s or %s"
+       // Then, invoke YY_ on this string.
+       // Finally, use the string as a format to output
+       // yytname_[tok], etc.
+       // Until this gets fixed, this message appears in English only.
+       res = "syntax error, unexpected ";
+       res += yytnamerr_ (yytname_[tok]);
+       if (count < 5)
+         {
+           count = 0;
+           for (int x = yyxbegin; x < yyxend; ++x)
+             if (yycheck_[x + yyn] == x && x != yyterror_)
+               {
+                 res += (!count++) ? ", expecting " : " or ";
+                 res += yytnamerr_ (yytname_[x]);
+               }
+         }
+      }
+    else

 #endif
 #endif

-    res = YY_("syntax error");
-  return res;
-}
+      res = YY_("syntax error");
+    return res;
+  }

 
 
 
 

-/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
-   STATE-NUM.  */
-const ]b4_int_type(b4_pact_ninf, b4_pact_ninf) yy::b4_parser_class_name::yypact_ninf_ = b4_pact_ninf[;
-const ]b4_int_type_for([b4_pact])[
-yy::]b4_parser_class_name[::yypact_[] =
-{
-  ]b4_pact[
-};
-
-/* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
-   doesn't specify something else to do.  Zero means the default is an
-   error.  */
-const ]b4_int_type_for([b4_defact])[
-yy::]b4_parser_class_name[::yydefact_[] =
-{
-  ]b4_defact[
-};
+  /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+     STATE-NUM.  */
+  const ]b4_int_type(b4_pact_ninf, b4_pact_ninf) b4_parser_class_name::yypact_ninf_ = b4_pact_ninf[;
+  const ]b4_int_type_for([b4_pact])[
+  ]b4_parser_class_name[::yypact_[] =
+  {
+    ]b4_pact[
+  };

 
 

-/* YYPGOTO[NTERM-NUM].  */
-const ]b4_int_type_for([b4_pgoto])[
-yy::]b4_parser_class_name[::yypgoto_[] =
-{
-  ]b4_pgoto[
-};
+  /* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
+     doesn't specify something else to do.  Zero means the default is an
+     error.  */
+  const ]b4_int_type_for([b4_defact])[
+  ]b4_parser_class_name[::yydefact_[] =
+  {
+    ]b4_defact[
+  };

 
 

-/* YYDEFGOTO[NTERM-NUM].  */
-const ]b4_int_type_for([b4_defgoto])[
-yy::]b4_parser_class_name[::yydefgoto_[] =
-{
-  ]b4_defgoto[
-};
-
-/* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
-   positive, shift that token.  If negative, reduce the rule which
-   number is the opposite.  If zero, do what YYDEFACT says.  */
-const ]b4_int_type(b4_table_ninf, b4_table_ninf) yy::b4_parser_class_name::yytable_ninf_ = b4_table_ninf[;
-const ]b4_int_type_for([b4_table])[
-yy::]b4_parser_class_name[::yytable_[] =
-{
-  ]b4_table[
-};
+  /* YYPGOTO[NTERM-NUM].  */
+  const ]b4_int_type_for([b4_pgoto])[
+  ]b4_parser_class_name[::yypgoto_[] =
+  {
+    ]b4_pgoto[
+  };

 
 

-/* YYCHECK.  */
-const ]b4_int_type_for([b4_check])[
-yy::]b4_parser_class_name[::yycheck_[] =
-{
-  ]b4_check[
-};
+  /* YYDEFGOTO[NTERM-NUM].  */
+  const ]b4_int_type_for([b4_defgoto])[
+  ]b4_parser_class_name[::yydefgoto_[] =
+  {
+    ]b4_defgoto[
+  };

 
 

-/* STOS_[STATE-NUM] -- The (internal number of the) accessing
-   symbol of state STATE-NUM.  */
-const ]b4_int_type_for([b4_stos])[
-yy::]b4_parser_class_name[::yystos_[] =
-{
-  ]b4_stos[
-};
+  /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
+     positive, shift that token.  If negative, reduce the rule which
+     number is the opposite.  If zero, do what YYDEFACT says.  */
+  const ]b4_int_type(b4_table_ninf, b4_table_ninf) b4_parser_class_name::yytable_ninf_ = b4_table_ninf[;
+  const ]b4_int_type_for([b4_table])[
+  ]b4_parser_class_name[::yytable_[] =
+  {
+    ]b4_table[
+  };
+
+  /* YYCHECK.  */
+  const ]b4_int_type_for([b4_check])[
+  ]b4_parser_class_name[::yycheck_[] =
+  {
+    ]b4_check[
+  };
+
+  /* STOS_[STATE-NUM] -- The (internal number of the) accessing
+     symbol of state STATE-NUM.  */
+  const ]b4_int_type_for([b4_stos])[
+  ]b4_parser_class_name[::yystos_[] =
+  {
+    ]b4_stos[
+  };

 
 #if YYDEBUG
 
 #if YYDEBUG

-/* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
-   to YYLEX-NUM.  */
-const ]b4_int_type_for([b4_toknum])[
-yy::]b4_parser_class_name[::yytoken_number_[] =
-{
-  ]b4_toknum[
-};
+  /* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
+     to YYLEX-NUM.  */
+  const ]b4_int_type_for([b4_toknum])[
+  ]b4_parser_class_name[::yytoken_number_[] =
+  {
+    ]b4_toknum[
+  };

 #endif
 
 #endif
 

-/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
-const ]b4_int_type_for([b4_r1])[
-yy::]b4_parser_class_name[::yyr1_[] =
-{
-  ]b4_r1[
-};
+  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+  const ]b4_int_type_for([b4_r1])[
+  ]b4_parser_class_name[::yyr1_[] =
+  {
+    ]b4_r1[
+  };

 
 

-/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
-const ]b4_int_type_for([b4_r2])[
-yy::]b4_parser_class_name[::yyr2_[] =
-{
-  ]b4_r2[
-};
+  /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
+  const ]b4_int_type_for([b4_r2])[
+  ]b4_parser_class_name[::yyr2_[] =
+  {
+    ]b4_r2[
+  };

 
 #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
 
 #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE

-/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
-   First, the terminals, then, starting at \a yyntokens_, nonterminals. */
-const char*
-const yy::]b4_parser_class_name[::yytname_[] =
-{
-  ]b4_tname[
-};
+  /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+     First, the terminals, then, starting at \a yyntokens_, nonterminals.  */
+  const char*
+  const ]b4_parser_class_name[::yytname_[] =
+  {
+    ]b4_tname[
+  };

 #endif
 
 #if YYDEBUG
 #endif
 
 #if YYDEBUG

-/* YYRHS -- A `-1'-separated list of the rules' RHS. */
-const yy::]b4_parser_class_name[::rhs_number_type
-yy::]b4_parser_class_name[::yyrhs_[] =
-{
-  ]b4_rhs[
-};
+  /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
+  const ]b4_parser_class_name[::rhs_number_type
+  ]b4_parser_class_name[::yyrhs_[] =
+  {
+    ]b4_rhs[
+  };

 
 

-/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
-   YYRHS.  */
-const ]b4_int_type_for([b4_prhs])[
-yy::]b4_parser_class_name[::yyprhs_[] =
-{
-  ]b4_prhs[
-};
+  /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+     YYRHS.  */
+  const ]b4_int_type_for([b4_prhs])[
+  ]b4_parser_class_name[::yyprhs_[] =
+  {
+    ]b4_prhs[
+  };

 
 

-/* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
-const ]b4_int_type_for([b4_rline])[
-yy::]b4_parser_class_name[::yyrline_[] =
-{
-  ]b4_rline[
-};
+  /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
+  const ]b4_int_type_for([b4_rline])[
+  ]b4_parser_class_name[::yyrline_[] =
+  {
+    ]b4_rline[
+  };

 
 

-// Print the state stack on the debug stream.
-void
-yy::]b4_parser_class_name[::yystack_print_ ()
-{
-  *yycdebug_ << "Stack now";
-  for (state_stack_type::const_iterator i = yystate_stack_.begin ();
-       i != yystate_stack_.end (); ++i)
-    *yycdebug_ << ' ' << *i;
-  *yycdebug_ << std::endl;
-}
+  // Print the state stack on the debug stream.
+  void
+  ]b4_parser_class_name[::yystack_print_ ()
+  {
+    *yycdebug_ << "Stack now";
+    for (state_stack_type::const_iterator i = yystate_stack_.begin ();
+        i != yystate_stack_.end (); ++i)
+      *yycdebug_ << ' ' << *i;
+    *yycdebug_ << std::endl;
+  }

 
 

-// Report on the debug stream that the rule \a yyrule is going to be reduced.
-void
-yy::]b4_parser_class_name[::yyreduce_print_ (int yyrule)
-{
-  unsigned int yylno = yyrline_[yyrule];
-  /* Print the symbols being reduced, and their result.  */
-  *yycdebug_ << "Reducing stack by rule " << yyrule - 1
-             << " (line " << yylno << "), ";
-  for (]b4_int_type_for([b4_prhs])[ i = yyprhs_[yyrule];
-       0 <= yyrhs_[i]; ++i)
-    *yycdebug_ << yytname_[yyrhs_[i]] << ' ';
-  *yycdebug_ << "-> " << yytname_[yyr1_[yyrule]] << std::endl;
-}
+  // Report on the debug stream that the rule \a yyrule is going to be reduced.
+  void
+  ]b4_parser_class_name[::yy_reduce_print_ (int yyrule)
+  {
+    unsigned int yylno = yyrline_[yyrule];
+    int yynrhs = yyr2_[yyrule];
+    /* Print the symbols being reduced, and their result.  */
+    *yycdebug_ << "Reducing stack by rule " << yyrule - 1
+              << " (line " << yylno << "), ";
+    /* The symbols being reduced.  */
+    for (int yyi = 0; yyi < yynrhs; yyi++)
+      YY_SYMBOL_PRINT ("   $" << yyi + 1 << " =",
+                      yyrhs_[yyprhs_[yyrule] + yyi],
+                      &]b4_rhs_value(yynrhs, yyi + 1)[,
+                      &]b4_rhs_location(yynrhs, yyi + 1)[);
+  }

 #endif // YYDEBUG
 
 #endif // YYDEBUG
 

-/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
-yy::]b4_parser_class_name[::token_number_type
-yy::]b4_parser_class_name[::yytranslate_ (int token)
-{
-  static
-  const token_number_type
-  translate_table[] =
+  /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+  ]b4_parser_class_name[::token_number_type
+  ]b4_parser_class_name[::yytranslate_ (int t)

   {
   {

-    ]b4_translate[
-  };
-  if ((unsigned int) token <= yyuser_token_number_max_)
-    return translate_table[token];
-  else
-    return yyundef_token_;
-}
+    static
+    const token_number_type
+    translate_table[] =
+    {
+      ]b4_translate[
+    };
+    if ((unsigned int) t <= yyuser_token_number_max_)
+      return translate_table[t];
+    else
+      return yyundef_token_;
+  }
+
+  const int ]b4_parser_class_name[::yyeof_ = 0;
+  const int ]b4_parser_class_name[::yylast_ = ]b4_last[;
+  const int ]b4_parser_class_name[::yynnts_ = ]b4_nterms_number[;
+  const int ]b4_parser_class_name[::yyempty_ = -2;
+  const int ]b4_parser_class_name[::yyfinal_ = ]b4_final_state_number[;
+  const int ]b4_parser_class_name[::yyterror_ = 1;
+  const int ]b4_parser_class_name[::yyerrcode_ = 256;
+  const int ]b4_parser_class_name[::yyntokens_ = ]b4_tokens_number[;

 
 

-const int yy::]b4_parser_class_name[::yyeof_ = 0;
-const int yy::]b4_parser_class_name[::yylast_ = ]b4_last[;
-const int yy::]b4_parser_class_name[::yynnts_ = ]b4_nterms_number[;
-const int yy::]b4_parser_class_name[::yyempty_ = -2;
-const int yy::]b4_parser_class_name[::yyfinal_ = ]b4_final_state_number[;
-const int yy::]b4_parser_class_name[::yyterror_ = 1;
-const int yy::]b4_parser_class_name[::yyerrcode_ = 256;
-const int yy::]b4_parser_class_name[::yyntokens_ = ]b4_tokens_number[;
+  const unsigned int ]b4_parser_class_name[::yyuser_token_number_max_ = ]b4_user_token_number_max[;
+  const ]b4_parser_class_name[::token_number_type ]b4_parser_class_name[::yyundef_token_ = ]b4_undef_token_number[;

 
 

-const unsigned int yy::]b4_parser_class_name[::yyuser_token_number_max_ = ]b4_user_token_number_max[;
-const yy::]b4_parser_class_name[::token_number_type yy::]b4_parser_class_name[::yyundef_token_ = ]b4_undef_token_number[;
+} // namespace ]b4_namespace[

 
 ]b4_epilogue
 dnl
 @output b4_dir_prefix[]stack.hh
 
 ]b4_epilogue
 dnl
 @output b4_dir_prefix[]stack.hh

-b4_copyright([stack handling for Bison C++ parsers], [2002, 2003, 2004, 2005])[
+b4_copyright([Stack handling for Bison parsers in C++],
+  [2002, 2003, 2004, 2005, 2006])[

 
 #ifndef BISON_STACK_HH
 # define BISON_STACK_HH
 
 #include <deque>
 
 
 #ifndef BISON_STACK_HH
 # define BISON_STACK_HH
 
 #include <deque>
 

-namespace yy
+namespace ]b4_namespace[

 {
   template <class T, class S = std::deque<T> >
   class stack
 {
   template <class T, class S = std::deque<T> >
   class stack