X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/868d2d96387042d8aba99fe427e76d186a7a4759..5ea72c19daec27f1213c4292134c40f81d956fb3:/data/lalr1.cc
diff --git a/data/lalr1.cc b/data/lalr1.cc
index 377659e5..6c66dd1b 100644
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -1,29 +1,28 @@
-m4_divert(-1)
-
# C++ skeleton for Bison
-# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2002-2010 Free Software Foundation, Inc.
-# 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,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# 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 .
m4_include(b4_pkgdatadir/[c++.m4])
+m4_define([b4_parser_class_name],
+ [b4_percent_define_get([[parser_class_name]])])
+
# 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])
@@ -31,11 +30,11 @@ 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 @output_header_name@
+[@output(b4_spec_defines_file@)@
b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++],
- [2002, 2003, 2004, 2005, 2006])
+ [2002-2010])
dnl FIXME: This is wrong, we want computed header guards.
[
/* C++ LALR(1) parser skeleton written by Akim Demaille. */
@@ -43,22 +42,18 @@ dnl FIXME: This is wrong, we want computed header guards.
#ifndef PARSER_HEADER_H
# define PARSER_HEADER_H
+]b4_percent_code_get([[requires]])[
+
#include
#include
#include "stack.hh"
-namespace ]b4_namespace[
-{
+]b4_namespace_open[
class position;
class location;
-}
+]b4_namespace_close[
-]m4_ifdef([b4_start_header],
-[[/* Copy the %start-header blocks. */
-]b4_user_start_header])[
-
-]dnl Include location.hh here: it might depend on headers included above.
-[#include "location.hh"
+#include "location.hh"
/* Enabling traces. */
#ifndef YYDEBUG
@@ -97,8 +92,7 @@ do { \
} while (false)
#endif
-namespace ]b4_namespace[
-{
+]b4_namespace_open[
/// A Bison parser.
class ]b4_parser_class_name[
@@ -108,8 +102,9 @@ 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 +112,7 @@ 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
{
@@ -134,6 +129,7 @@ b4_user_stype
/// \returns 0 iff parsing succeeded.
virtual int parse ();
+#if YYDEBUG
/// The current debugging stream.
std::ostream& debug_stream () const;
/// Set the current debugging stream.
@@ -145,6 +141,7 @@ b4_user_stype
debug_level_type debug_level () const;
/// Set the current debugging level.
void set_debug_level (debug_level_type l);
+#endif
private:
/// Report a syntax error.
@@ -173,7 +170,7 @@ b4_error_verbose_if([, int tok])[);
virtual void yy_symbol_print_ (int yytype,
const semantic_type* yyvaluep,
const location_type* yylocationp);
-#endif /* ! YYDEBUG */
+#endif
/// State numbers.
@@ -250,6 +247,10 @@ b4_error_verbose_if([, int tok])[);
virtual void yy_reduce_print_ (int r);
/// Print the state stack on the debug stream.
virtual void yystack_print_ ();
+
+ /* Debugging. */
+ int yydebug_;
+ std::ostream* yycdebug_;
#endif
/// Convert a scanner token number \a t to a symbol number.
@@ -280,48 +281,43 @@ b4_error_verbose_if([, int tok])[);
static const int yyntokens_;
static const unsigned int yyuser_token_number_max_;
static const token_number_type yyundef_token_;
-
- /* Debugging. */
- int yydebug_;
- std::ostream* yycdebug_;
-
]b4_parse_param_vars[
};
-}
+]b4_namespace_close[
-]m4_ifset([b4_global_tokens_and_yystype],
+]b4_percent_define_flag_if([[global_tokens_and_yystype]],
[b4_token_defines(b4_tokens)
#ifndef YYSTYPE
/* Redirection for backward compatibility. */
-# define YYSTYPE b4_namespace::b4_parser_class_name::semantic_type
+# define YYSTYPE b4_namespace_ref::b4_parser_class_name::semantic_type
#endif
])
-m4_ifdef([b4_end_header],
-[[/* Copy the %end-header blocks. */
-]b4_end_header])[]dnl
+b4_percent_code_get([[provides]])[]dnl
[#endif /* ! defined PARSER_HEADER_H */]
])dnl
-@output @output_parser_name@
+@output(b4_parser_file_name@)@
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++],
- [2002, 2003, 2004, 2005, 2006])
+ [2002-2010])
+b4_percent_code_get([[top]])[]dnl
m4_if(b4_prefix, [yy], [],
[
// Take the name prefix into account.
#define yylex b4_prefix[]lex])[
/* First part of user declarations. */
-]b4_pre_prologue
+]b4_user_pre_prologue
-b4_defines_if([
-#include @output_header_name@])[
+b4_defines_if([[
+#include "@basename(]b4_spec_defines_file[@)"]])[
/* User implementation prologue. */
-]b4_user_post_prologue[
+]b4_user_post_prologue
+b4_percent_code_get[]dnl
-#ifndef YY_
-# if YYENABLE_NLS
+[#ifndef YY_
+# if defined YYENABLE_NLS && YYENABLE_NLS
# if ENABLE_NLS
# include /* FIXME: INFRINGES ON USER NAME SPACE */
# define YY_(msgid) dgettext ("bison-runtime", msgid)
@@ -335,12 +331,12 @@ b4_defines_if([
/* Suppress unused-variable warnings by "using" E. */
#define YYUSE(e) ((void) (e))
-/* A pseudo ostream that takes yydebug_ into account. */
-# define YYCDEBUG if (yydebug_) (*yycdebug_)
-
/* Enable debugging if requested. */
#if YYDEBUG
+/* A pseudo ostream that takes yydebug_ into account. */
+# define YYCDEBUG if (yydebug_) (*yycdebug_)
+
# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
do { \
if (yydebug_) \
@@ -365,18 +361,22 @@ do { \
#else /* !YYDEBUG */
+# define YYCDEBUG if (false) std::cerr
# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
# define YY_REDUCE_PRINT(Rule)
# define YY_STACK_PRINT()
#endif /* !YYDEBUG */
+#define yyerrok (yyerrstatus_ = 0)
+#define yyclearin (yychar = yyempty_)
+
#define YYACCEPT goto yyacceptlab
#define YYABORT goto yyabortlab
#define YYERROR goto yyerrorlab
+#define YYRECOVERING() (!!yyerrstatus_)
-namespace ]b4_namespace[
-{
+]b4_namespace_open[
#if YYERROR_VERBOSE
/* Return YYSTR after stripping away unnecessary quotes and
@@ -419,9 +419,12 @@ namespace ]b4_namespace[
#endif
/// 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[
+ ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [
+ :])[
+#if YYDEBUG
+ ]m4_ifset([b4_parse_param], [ ], [ :])[yydebug_ (false),
+ yycdebug_ (&std::cerr)]m4_ifset([b4_parse_param], [,])[
+#endif]b4_parse_param_cons[
{
}
@@ -459,7 +462,7 @@ namespace ]b4_namespace[
yy_symbol_value_print_ (yytype, yyvaluep, yylocationp);
*yycdebug_ << ')';
}
-#endif /* ! YYDEBUG */
+#endif
void
]b4_parser_class_name[::yydestruct_ (const char* yymsg,
@@ -487,6 +490,7 @@ namespace ]b4_namespace[
yylocation_stack_.pop (n);
}
+#if YYDEBUG
std::ostream&
]b4_parser_class_name[::debug_stream () const
{
@@ -511,7 +515,7 @@ namespace ]b4_namespace[
{
yydebug_ = l;
}
-
+#endif
int
]b4_parser_class_name[::parse ()
@@ -534,7 +538,7 @@ namespace ]b4_namespace[
/// Location of the lookahead.
location_type yylloc;
/// The locations where the error started and ended.
- location yyerror_range[2];
+ location_type yyerror_range[2];
/// $$.
semantic_type yyval;
@@ -671,7 +675,8 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
switch (yyn)
{
]b4_user_actions[
- default: break;
+ default:
+ break;
}
YY_SYMBOL_PRINT ("-> $$ =", yyr1_[yyn], &yyval, &yyloc);
@@ -789,7 +794,7 @@ b4_error_verbose_if([, yytoken])[));
/* 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;
@@ -1007,7 +1012,7 @@ 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 << " =",
@@ -1045,21 +1050,20 @@ b4_error_verbose_if([, int tok])[)
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[;
-} // namespace ]b4_namespace[
+]b4_namespace_close[
]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])[
+ [2002-2010])[
#ifndef BISON_STACK_HH
# define BISON_STACK_HH
#include
-namespace ]b4_namespace[
-{
+]b4_namespace_open[
template >
class stack
{
@@ -1145,7 +1149,8 @@ namespace ]b4_namespace[
const S& stack_;
unsigned int range_;
};
-}
+]b4_namespace_close[
-#endif // not BISON_STACK_HH]
-m4_divert(-1)
+#endif // not BISON_STACK_HH[]dnl
+]
+m4_divert_pop(0)