m4_divert(-1)
# C++ skeleton for Bison
# Copyright (C) 2002, 2003, 2004, 2005 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
# the Free Software Foundation; either version 2 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
m4_include(b4_pkgdatadir/[c++.m4])
# We do want M4 expansion after # for CPP macros.
m4_changecom()
m4_divert(0)dnl
m4_if(b4_defines_flag, 0, [],
[@output @output_header_name@
b4_copyright([C++ Skeleton parser for LALR(1) parsing with Bison],
[2002, 2003, 2004, 2005])[
/* FIXME: This is wrong, we want computed header guards.
I don't know why the macros are missing now. :( */
#ifndef PARSER_HEADER_H
# define PARSER_HEADER_H
#include <string>
#include <iostream>
/* Using locations. */
#define YYLSP_NEEDED ]b4_locations_flag[
namespace yy
{
class position;
class location;
}
]b4_token_enums(b4_tokens)[
/* Copy the first part of user declarations. */
]b4_pre_prologue[
]/* Line __line__ of lalr1.cc. */
b4_syncline([@oline@], [@ofile@])[
#include "stack.hh"
#include "location.hh"
/* Enabling traces. */
#ifndef YYDEBUG
# define YYDEBUG ]b4_debug[
#endif
/* Enabling verbose error messages. */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
# define YYERROR_VERBOSE ]b4_error_verbose[
#endif
#if YYERROR_VERBOSE
# define YYERROR_VERBOSE_IF(x) x
#else
# define YYERROR_VERBOSE_IF(x) /* empty */
#endif
/* Enabling the token table. */
#ifndef YYTOKEN_TABLE
# define YYTOKEN_TABLE ]b4_token_table[
#endif
#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
]m4_ifdef([b4_stype],
[b4_syncline([b4_stype_line], [b4_file_name])
union YYSTYPE b4_stype;
/* Line __line__ of lalr1.cc. */
b4_syncline([@oline@], [@ofile@])],
[typedef int YYSTYPE;])[
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif
/* Copy the second part of user declarations. */
]b4_post_prologue[
]/* Line __line__ of lalr1.cc. */
b4_syncline([@oline@], [@ofile@])[
/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
If N is 0, then set CURRENT to the empty location which ends
the previous symbol: RHS[0] (always defined). */
#ifndef YYLLOC_DEFAULT
# define YYLLOC_DEFAULT(Current, Rhs, N) \
do { \
if (N) \
{ \
(Current).begin = (Rhs)[1].begin; \
(Current).end = (Rhs)[N].end; \
} \
else \
{ \
(Current).begin = (Current).end = (Rhs)[0].end; \
} \
} while (0)
#endif
namespace yy
{
class ]b4_parser_class_name[;
template <typename P>
struct traits
{
};
template <>
struct traits<]b4_parser_class_name[>
{
typedef ]b4_int_type_for([b4_translate])[ token_number_type;
typedef ]b4_int_type_for([b4_rhs])[ rhs_number_type;
typedef int state_type;
typedef YYSTYPE semantic_type;
typedef ]b4_location_type[ location_type;
};
}
namespace yy
{
/// A Bison parser.
class ]b4_parser_class_name[
{
/// Symbol semantic values.
typedef traits<]b4_parser_class_name[>::semantic_type semantic_type;
/// Symbol locations.
typedef traits<]b4_parser_class_name[>::location_type location_type;
public:
/// 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[ ()
{
}
/// Parse.
/// \returns 0 iff parsing succeeded.
virtual int parse ();
/// The current debugging stream.
std::ostream& debug_stream () const;
/// Set the current debugging stream.
void set_debug_stream (std::ostream &);
/// Type for debugging levels.
typedef int debug_level_type;
/// The current debugging level.
debug_level_type debug_level () const;
/// Set the current debugging level.
void set_debug_level (debug_level_type l);
private:
/// Report a syntax error.
/// \param loc where the syntax error is found.
/// \param msg a description of the syntax error.
virtual void error (const location_type& loc, const std::string& msg);
/// Generate an error message.
/// \param tok the look-ahead token.
virtual std::string yysyntax_error_ (YYERROR_VERBOSE_IF (int tok));
#if YYDEBUG
/// \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);
#endif /* ! YYDEBUG */
/// State numbers.
typedef traits<]b4_parser_class_name[>::state_type state_type;
/// State stack type.
typedef stack<state_type> state_stack_type;
/// Semantic value stack type.
typedef stack<semantic_type> semantic_stack_type;
/// location stack type.
typedef stack<location_type> location_stack_type;
/// The state stack.
state_stack_type yystate_stack_;
/// The semantic value stack.
semantic_stack_type yysemantic_stack_;
/// The location stack.
location_stack_type yylocation_stack_;
/// Internal symbol numbers.
typedef traits<]b4_parser_class_name[>::token_number_type token_number_type;
/* Tables. */
/// For a state, the index in \a yytable_ of its portion.
static const ]b4_int_type_for([b4_pact])[ yypact_[];
static const ]b4_int_type(b4_pact_ninf, b4_pact_ninf)[ yypact_ninf_;
/// For a state, default rule to reduce.
/// Unless\a yytable_ specifies something else to do.
/// Zero means the default is an error.
static const ]b4_int_type_for([b4_defact])[ yydefact_[];
static const ]b4_int_type_for([b4_pgoto])[ yypgoto_[];
static const ]b4_int_type_for([b4_defgoto])[ yydefgoto_[];
/// What to do in a state.
/// \a yytable_[yypact_[s]]: what to do in state \a s.
/// - if positive, shift that token.
/// - if negative, reduce the rule which number is the opposite.
/// - if zero, do what YYDEFACT says.
static const ]b4_int_type_for([b4_table])[ yytable_[];
static const ]b4_int_type(b4_table_ninf, b4_table_ninf)[ yytable_ninf_;
static const ]b4_int_type_for([b4_check])[ yycheck_[];
/// For a state, its accessing symbol.
static const ]b4_int_type_for([b4_stos])[ yystos_[];
/// For a rule, its LHS.
static const ]b4_int_type_for([b4_r1])[ yyr1_[];
/// For a rule, its RHS length.
static const ]b4_int_type_for([b4_r2])[ yyr2_[];
#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
/// For a symbol, its name in clear.
static const char* const yytname_[];
#endif
#if YYERROR_VERBOSE
/// Convert the symbol name \a n to a form suitable for a diagnostic.
virtual std::string yytnamerr_ (const char *n);
#endif
#if YYDEBUG
/// A type to store symbol numbers and -1.
typedef traits<]b4_parser_class_name[>::rhs_number_type rhs_number_type;
/// A `-1'-separated list of the rules' RHS.
static const rhs_number_type yyrhs_[];
/// For each rule, the index of the first RHS symbol in \a yyrhs_.
static const ]b4_int_type_for([b4_prhs])[ yyprhs_[];
/// For each rule, its source line number.
static const ]b4_int_type_for([b4_rline])[ yyrline_[];
/// 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);
/// 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);
/// \brief Reclaim the memory associated to a symbol.
/// \param yymsg Why this token is reclaimed.
/// \param yytype The symbol type.
/// \param yyvaluep Its semantic value.
/// \param yylocationp Its location.
inline void yydestruct_ (const char* yymsg,
int yytype,
semantic_type* yyvaluep,
location_type* yylocationp);
/// Pop \a n symbols the three stacks.
inline void yypop_ (unsigned int n = 1);
/* Constants. */
static const int yyeof_;
/* LAST_ -- Last index in TABLE_. */
static const int yylast_;
static const int yynnts_;
static const int yyempty_;
static const int yyfinal_;
static const int yyterror_;
static const int yyerrcode_;
static const int yyntokens_;
static const unsigned int yyuser_token_number_max_;
static const token_number_type yyundef_token_;
/* State. */
int yyn_;
int yylen_;
int yystate_;
/* Error handling. */
int yynerrs_;
int yyerrstatus_;
/* Debugging. */
int yydebug_;
std::ostream* yycdebug_;
]b4_parse_param_vars[
};
}
#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], [],
[
// Take the name prefix into account.
#define yylex b4_prefix[]lex])
m4_if(b4_defines_flag, 0, [],
[
#include @output_header_name@])[
#ifndef YY_
# if YYENABLE_NLS
# if ENABLE_NLS
# include <libintl.h> /* FIXME: INFRINGES ON USER NAME SPACE */
# define YY_(msgid) dgettext ("bison-runtime", msgid)
# endif
# endif
# ifndef YY_
# define YY_(msgid) msgid
# endif
#endif
/* A pseudo ostream that takes yydebug_ into account. */
# define YYCDEBUG \
for (bool yydebugcond_ = yydebug_; yydebugcond_; yydebugcond_ = false) \
(*yycdebug_)
/* Enable debugging if requested. */
#if YYDEBUG
# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
do { \
if (yydebug_) \
{ \
*yycdebug_ << (Title) << ' '; \
yysymprint_ ((Type), (Value), (Location)); \
*yycdebug_ << std::endl; \
} \
} while (0)
# define YY_REDUCE_PRINT(Rule) \
do { \
if (yydebug_) \
yyreduce_print_ (Rule); \
} while (0)
# define YY_STACK_PRINT() \
do { \
if (yydebug_) \
yystack_print_ (); \
} while (0)
#else /* !YYDEBUG */
# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
# define YY_REDUCE_PRINT(Rule)
# define YY_STACK_PRINT()
#endif /* !YYDEBUG */
#define YYACCEPT goto yyacceptlab
#define YYABORT goto yyabortlab
#define YYERROR goto yyerrorlab
#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;
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;
}
#endif
#if YYDEBUG
/*--------------------------------.
| Print this symbol on YYOUTPUT. |
`--------------------------------*/
void
yy::]b4_parser_class_name[::yysymprint_ (int yytype,
const semantic_type* yyvaluep, const location_type* yylocationp)
{
/* Pacify ``unused variable'' warnings. */
(void) yyvaluep;
(void) yylocationp;
/* Backward compatibility, but should be removed eventually. */
std::ostream& cdebug_ = *yycdebug_;
(void) cdebug_;
*yycdebug_ << (yytype < yyntokens_ ? "token" : "nterm")
<< ' ' << yytname_[yytype] << " ("
<< *yylocationp << ": ";
switch (yytype)
{
]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
[ default:
break;
}
*yycdebug_ << ')';
}
#endif /* ! YYDEBUG */
void
yy::]b4_parser_class_name[::yydestruct_ (const char* yymsg,
int yytype, semantic_type* yyvaluep, location_type* yylocationp)
{
/* Pacify ``unused variable'' warnings. */
(void) yymsg;
(void) yyvaluep;
(void) yylocationp;
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);
}
std::ostream&
yy::]b4_parser_class_name[::debug_stream () const
{
return *yycdebug_;
}
void
yy::]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_;
}
void
yy::]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 yylooka;
int yyilooka;
/// 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;
int yyresult_;
YYCDEBUG << "Starting parse" << std::endl;
yynerrs_ = 0;
yyerrstatus_ = 0;
/* Start. */
yystate_ = 0;
yylooka = yyempty_;
]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
m4_popdef([b4_dollar_dollar])dnl
m4_popdef([b4_at_dollar])dnl
/* Line __line__ of yacc.c. */
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 (yylooka == yyempty_)
{
YYCDEBUG << "Reading a token: ";
yylooka = ]b4_c_function_call([yylex], [int],
[[YYSTYPE*], [&yylval]][]dnl
b4_location_if([, [[location*], [&yylloc]]])dnl
m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
}
/* Convert token to internal form. */
if (yylooka <= yyeof_)
{
yylooka = yyilooka = yyeof_;
YYCDEBUG << "Now at end of input." << std::endl;
}
else
{
yyilooka = yytranslate_ (yylooka);
YY_SYMBOL_PRINT ("Next token is", yyilooka, &yylval, &yylloc);
}
/* If the proper action on seeing token ILOOKA_ is to reduce or to
detect an error, take that action. */
yyn_ += yyilooka;
if (yyn_ < 0 || yylast_ < yyn_ || yycheck_[yyn_] != yyilooka)
goto yydefault;
/* Reduce or error. */
yyn_ = yytable_[yyn_];
if (yyn_ < 0)
{
if (yyn_ == yytable_ninf_)
goto yyerrlab;
else
{
yyn_ = -yyn_;
goto yyreduce;
}
}
else if (yyn_ == 0)
goto yyerrlab;
/* Accept? */
if (yyn_ == yyfinal_)
goto yyacceptlab;
/* Shift the look-ahead token. */
YY_SYMBOL_PRINT ("Shifting", yyilooka, &yylval, &yylloc);
/* Discard the token being shifted unless it is eof. */
if (yylooka != yyeof_)
yylooka = 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;
}
]/* Line __line__ of lalr1.cc. */
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_ (YYERROR_VERBOSE_IF (yyilooka)));
}
yyerror_range[0] = yylloc;
if (yyerrstatus_ == 3)
{
/* If just tried and failed to reuse look-ahead token after an
error, discard it. */
if (yylooka <= yyeof_)
{
/* Return failure if at end of input. */
if (yylooka == yyeof_)
YYABORT;
}
else
{
yydestruct_ ("Error: discarding", yyilooka, &yylval, &yylloc);
yylooka = 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_)
{
yyn_ += yyterror_;
if (0 <= yyn_ && yyn_ <= yylast_ && yycheck_[yyn_] == yyterror_)
{
yyn_ = yytable_[yyn_];
if (0 < yyn_)
break;
}
}
/* Pop the current state because it cannot handle the error token. */
if (yystate_stack_.height () == 1)
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_],
&yysemantic_stack_[0], &yylocation_stack_[0]);
yystate_ = yyn_;
goto yynewstate;
/* Accept. */
yyacceptlab:
yyresult_ = 0;
goto yyreturn;
/* Abort. */
yyabortlab:
yyresult_ = 1;
goto yyreturn;
yyreturn:
if (yylooka != yyeof_ && yylooka != yyempty_)
yydestruct_ ("Cleanup: discarding lookahead", yyilooka, &yylval, &yylloc);
while (yystate_stack_.height () != 1)
{
yydestruct_ ("Cleanup: popping",
yystos_[yystate_stack_[0]],
&yysemantic_stack_[0],
&yylocation_stack_[0]);
yypop_ ();
}
return yyresult_;
}
// Generate an error message.
std::string
yy::]b4_parser_class_name[::yysyntax_error_ (YYERROR_VERBOSE_IF (int tok))
{
std::string res;
#if YYERROR_VERBOSE
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
#endif
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[
};
/* YYPGOTO[NTERM-NUM]. */
const ]b4_int_type_for([b4_pgoto])[
yy::]b4_parser_class_name[::yypgoto_[] =
{
]b4_pgoto[
};
/* 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[
};
/* YYCHECK. */
const ]b4_int_type_for([b4_check])[
yy::]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])[
yy::]b4_parser_class_name[::yystos_[] =
{
]b4_stos[
};
#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[
};
#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[
};
/* 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[
};
#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[
};
#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[
};
/* 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[
};
/* 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[
};
// 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;
}
// 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 " << yyn_ - 1
<< " (line " << yylno << "), ";
for (]b4_int_type_for([b4_prhs])[ i = yyprhs_[yyn_];
0 <= yyrhs_[i]; ++i)
*yycdebug_ << yytname_[yyrhs_[i]] << ' ';
*yycdebug_ << "-> " << yytname_[yyr1_[yyn_]] << std::endl;
}
#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[] =
{
]b4_translate[
};
if ((unsigned int) token <= yyuser_token_number_max_)
return translate_table[token];
else
return yyundef_token_;
}
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 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[;
]b4_epilogue
dnl
@output stack.hh
b4_copyright([stack handling for Bison C++ parsers], [2002, 2003, 2004, 2005])[
#ifndef BISON_STACK_HH
# define BISON_STACK_HH
#include <deque>
namespace yy
{
template <class T, class S = std::deque<T> >
class stack
{
public:
// Hide our reversed order.
typedef typename S::reverse_iterator iterator;
typedef typename S::const_reverse_iterator const_iterator;
stack () : seq_ ()
{
}
stack (unsigned int n) : seq_ (n)
{
}
inline
T&
operator [] (unsigned int i)
{
return seq_[i];
}
inline
const T&
operator [] (unsigned int i) const
{
return seq_[i];
}
inline
void
push (const T& t)
{
seq_.push_front (t);
}
inline
void
pop (unsigned int n = 1)
{
for (; n; --n)
seq_.pop_front ();
}
inline
unsigned int
height () const
{
return seq_.size ();
}
inline const_iterator begin () const { return seq_.rbegin (); }
inline const_iterator end () const { return seq_.rend (); }
private:
S seq_;
};
/// Present a slice of the top of a stack.
template <class T, class S = stack<T> >
class slice
{
public:
slice (const S& stack,
unsigned int range) : stack_ (stack),
range_ (range)
{
}
inline
const T&
operator [] (unsigned int i) const
{
return stack_[range_ - i];
}
private:
const S& stack_;
unsigned int range_;
};
}
#endif // not BISON_STACK_HH]
dnl
@output position.hh
b4_copyright([Position class for Bison C++ parsers], [2002, 2003, 2004, 2005])[
/**
** \file position.hh
** Define the position class.
*/
#ifndef BISON_POSITION_HH
# define BISON_POSITION_HH
# include <iostream>
# include <string>
namespace yy
{
/// Abstract a position.
class position
{
public:
/// Initial column number.
static const unsigned int initial_column = 0;
/// Initial line number.
static const unsigned int initial_line = 1;
/** \name Ctor & dtor.
** \{ */
public:
/// Construct a position.
position () :
filename (0),
line (initial_line),
column (initial_column)
{
}
/** \} */
/** \name Line and Column related manipulators
** \{ */
public:
/// (line related) Advance to the COUNT next lines.
inline void lines (int count = 1)
{
column = initial_column;
line += count;
}
/// (column related) Advance to the COUNT next columns.
inline void columns (int count = 1)
{
int leftmost = initial_column;
int current = column;
if (leftmost <= current + count)
column += count;
else
column = initial_column;
}
/** \} */
public:
/// File name to which this position refers.
]b4_filename_type[* filename;
/// Current line number.
unsigned int line;
/// Current column number.
unsigned int column;
};
/// Add and assign a position.
inline const position&
operator+= (position& res, const int width)
{
res.columns (width);
return res;
}
/// Add two position objects.
inline const position
operator+ (const position& begin, const int width)
{
position res = begin;
return res += width;
}
/// Add and assign a position.
inline const position&
operator-= (position& res, const int width)
{
return res += -width;
}
/// Add two position objects.
inline const position
operator- (const position& begin, const int width)
{
return begin + -width;
}
/** \brief Intercept output stream redirection.
** \param ostr the destination output stream
** \param pos a reference to the position to redirect
*/
inline std::ostream&
operator<< (std::ostream& ostr, const position& pos)
{
if (pos.filename)
ostr << *pos.filename << ':';
return ostr << pos.line << '.' << pos.column;
}
}
#endif // not BISON_POSITION_HH]
@output location.hh
b4_copyright([Location class for Bison C++ parsers], [2002, 2003, 2004, 2005])[
/**
** \file location.hh
** Define the location class.
*/
#ifndef BISON_LOCATION_HH
# define BISON_LOCATION_HH
# include <iostream>
# include <string>
# include "position.hh"
namespace yy
{
/// Abstract a location.
class location
{
/** \name Ctor & dtor.
** \{ */
public:
/// Construct a location.
location () :
begin (),
end ()
{
}
/** \} */
/** \name Line and Column related manipulators
** \{ */
public:
/// Reset initial location to final location.
inline void step ()
{
begin = end;
}
/// Extend the current location to the COUNT next columns.
inline void columns (unsigned int count = 1)
{
end += count;
}
/// Extend the current location to the COUNT next lines.
inline void lines (unsigned int count = 1)
{
end.lines (count);
}
/** \} */
public:
/// Beginning of the located region.
position begin;
/// End of the located region.
position end;
};
/// Join two location objects to create a location.
inline const location operator+ (const location& begin, const location& end)
{
location res = begin;
res.end = end.end;
return res;
}
/// Add two location objects.
inline const location operator+ (const location& begin, unsigned int width)
{
location res = begin;
res.columns (width);
return res;
}
/// Add and assign a location.
inline location& operator+= (location& res, unsigned int width)
{
res.columns (width);
return res;
}
/** \brief Intercept output stream redirection.
** \param ostr the destination output stream
** \param loc a reference to the location to redirect
**
** Avoid duplicate information.
*/
inline std::ostream& operator<< (std::ostream& ostr, const location& loc)
{
position last = loc.end - 1;
ostr << loc.begin;
if (last.filename
&& (!loc.begin.filename
|| *loc.begin.filename != *last.filename))
ostr << '-' << last;
else if (loc.begin.line != last.line)
ostr << '-' << last.line << '.' << last.column;
else if (loc.begin.column != last.column)
ostr << '-' << last.column;
return ostr;
}
}
#endif // not BISON_LOCATION_HH]
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