m4_include([c.m4])
+## ---------------- ##
+## Default values. ##
+## ---------------- ##
+
+# Stack parameters.
+m4_define_default([b4_stack_depth_init], [200])
+
+# Default Parser class name.
+m4_define_default([b4_parser_class_name], [Parser])
+
+
+
+## ----------------- ##
+## Semantic Values. ##
+## ----------------- ##
+
+
# b4_lhs_value([TYPE])
# --------------------
# Expansion of $<TYPE>$.
# Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
# symbols on RHS.
m4_define([b4_rhs_value],
-[semantic_stack_@<:@m4_eval([$1 - $2])@:>@m4_ifval([$3], [.$3])])
+[semantic_stack_@{m4_eval([$1 - $2])@}m4_ifval([$3], [.$3])])
+m4_define_default([b4_location_type], [Location])
# b4_lhs_location()
# -----------------
# Expansion of @NUM, where the current rule has RULE-LENGTH symbols
# on RHS.
m4_define([b4_rhs_location],
-[location_stack_@<:@m4_eval([$1 - $2])@:>@])
-
-
-m4_define_default([b4_input_suffix], [.y])
-
-m4_define_default([b4_output_parser_suffix],
-[m4_translit(b4_input_suffix, [yY], [cC])])
-
-m4_define_default([b4_output_parser_name],
-[b4_output_prefix[]b4_output_infix[]b4_output_parser_suffix[]])
-
+[location_stack_@{m4_eval([$1 - $2])@}])
-m4_define_default([b4_output_header_suffix],
-[m4_translit(b4_input_suffix, [yY], [hH])])
-
-m4_define_default([b4_output_header_name],
-[b4_output_prefix[]b4_output_infix[]b4_output_header_suffix[]])
-
-m4_define_default([b4_header_guard],
- [m4_bpatsubst(m4_toupper([BISON_]b4_output_header_name),
- [[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]], [_])])
m4_define([b4_inherit],
[m4_ifdef([b4_root],
[])])
+# We do want M4 expansion after # for CPP macros.
+m4_changecom()
m4_divert(0)dnl
-#output "b4_output_header_name"
+@output @output_header_name@
b4_copyright([C++ Skeleton parser for LALR(1) parsing with Bison],
[2002])
-#ifndef b4_header_guard
-# define b4_header_guard
+#ifndef YYLSP_NEEDED
+# define YYLSP_NEEDED
#include "stack.hh"
#include "location.hh"
/* Using locations. */
#define YYLSP_NEEDED b4_locations_flag
+b4_token_defines(b4_tokens)
+
/* Copy the first part of user declarations. */
b4_pre_prologue
/* Line __line__ of __file__. */
-#line __oline__ "__ofile__"
-
-/* Tokens. */
-b4_token_defines(b4_tokens)
+b4_syncline([@oline@], [@ofile@])
/* Enabling traces. */
#ifndef YYDEBUG
#ifndef YYSTYPE
m4_ifdef([b4_stype],
-[#line b4_stype_line "b4_filename"
+[b4_syncline([b4_stype_line], [b4_filename])
typedef union b4_stype yystype;
/* Line __line__ of __file__. */
-#line __oline__ "__ofile__"],
+b4_syncline([@oline@], [@ofile@])],
[typedef int yystype;])
# define YYSTYPE yystype
#endif
b4_post_prologue
/* Line __line__ of __file__. */
-#line __oline__ "__ofile__"
+b4_syncline([@oline@], [@ofile@])
#ifndef YYLLOC_DEFAULT
# define YYLLOC_DEFAULT(Current, Rhs, N) \
Current.last_line = Rhs[[N]].last_line; \
Current.last_column = Rhs[[N]].last_column;
#endif
-m4_if(b4_locations_flag, [0], [],
-[#ifndef YYLTYPE
-typedef struct yyltype
-{
- int first_line;
- int first_column;
- int last_line;
- int last_column;
-} yyltype;
-# define YYLTYPE yyltype
-#endif])
-
namespace yy
{
- class b4_name;
+ class b4_parser_class_name;
template < typename P >
struct Traits
};
template < >
- struct Traits< b4_name >
+ struct Traits< b4_parser_class_name >
{
- typedef b4_uint_type(b4_translate_max) TokenNumberType;
- typedef b4_sint_type(b4_rhs_max) RhsNumberType;
+ typedef b4_int_type_for([b4_translate]) TokenNumberType;
+ typedef b4_int_type_for([b4_rhs]) RhsNumberType;
typedef int StateType;
typedef yystype SemanticType;
- typedef b4_ltype LocationType;
+ typedef b4_location_type LocationType;
};
}
namespace yy
{
- class b4_name b4_inherit
+ class b4_parser_class_name b4_inherit
{
public:
- typedef Traits< b4_name >::TokenNumberType TokenNumberType;
- typedef Traits< b4_name >::RhsNumberType RhsNumberType;
- typedef Traits< b4_name >::StateType StateType;
- typedef Traits< b4_name >::SemanticType SemanticType;
- typedef Traits< b4_name >::LocationType LocationType;
+ typedef Traits< b4_parser_class_name >::TokenNumberType TokenNumberType;
+ typedef Traits< b4_parser_class_name >::RhsNumberType RhsNumberType;
+ typedef Traits< b4_parser_class_name >::StateType StateType;
+ typedef Traits< b4_parser_class_name >::SemanticType SemanticType;
+ typedef Traits< b4_parser_class_name >::LocationType LocationType;
typedef Stack< StateType > StateStack;
typedef Stack< SemanticType > SemanticStack;
typedef Stack< LocationType > LocationStack;
#if YYLSP_NEEDED
- b4_name (bool debug,
+ b4_parser_class_name (bool debug,
LocationType initlocation[]b4_param) :
b4_constructor[]debug_ (debug),
cdebug_ (std::cerr),
initlocation_ (initlocation)
#else
- b4_name (bool debug[]b4_param) :
+ b4_parser_class_name (bool debug[]b4_param) :
b4_constructor[]debug_ (debug),
cdebug_ (std::cerr)
#endif
{
}
- virtual ~b4_name ()
+ virtual ~b4_parser_class_name ()
{
}
LocationStack location_stack_;
/* Tables. */
- static const short pact_[[]];
- static const short defact_[[]];
- static const short pgoto_[[]];
- static const short defgoto_[[]];
- static const short table_[[]];
- static const short check_[[]];
- static const b4_uint_type(b4_r1_max) r1_[[]];
- static const b4_uint_type(b4_r2_max) r2_[[]];
+ static const b4_int_type_for([b4_pact]) pact_[[]];
+ static const b4_int_type_for([b4_pact]) pact_ninf_;
+ static const b4_int_type_for([b4_defact]) defact_[[]];
+ static const b4_int_type_for([b4_pgoto]) pgoto_[[]];
+ static const b4_int_type_for([b4_defgoto]) defgoto_[[]];
+ static const b4_int_type_for([b4_table]) table_[[]];
+ static const b4_int_type_for([b4_table]) table_ninf_;
+ static const b4_int_type_for([b4_check]) check_[[]];
+ static const b4_int_type_for([b4_r1]) r1_[[]];
+ static const b4_int_type_for([b4_r2]) r2_[[]];
#if YYDEBUG || YYERROR_VERBOSE
static const char* const name_[[]];
/* More tables, for debugging. */
#if YYDEBUG
static const RhsNumberType rhs_[[]];
- static const b4_uint_type(b4_prhs_max) prhs_[[]];
- static const b4_uint_type(b4_rline_max) rline_[[]];
- static const b4_uint_type(b4_stos_max) stos_[[]];
- static const short token_number_[[]];
+ static const b4_int_type_for([b4_prhs]) prhs_[[]];
+ static const b4_int_type_for([b4_rline]) rline_[[]];
+ static const b4_int_type_for([b4_stos]) stos_[[]];
+ static const b4_int_type_for([b4_toknum]) token_number_[[]];
#endif
/* Even more tables. */
/* Constants. */
static const int eof_;
+ /* LAST_ -- Last index in TABLE_. */
static const int last_;
- static const int flag_;
static const int nnts_;
static const int empty_;
static const int final_;
SemanticType value;
LocationType location;
- /* @$ and $$. */
+ /* @@$ and $$. */
SemanticType yyval;
LocationType yyloc;
};
}
-#endif /* not b4_header_guard */
-
-#output "b4_output_prefix[]b4_output_infix[].cc"
+#endif /* ! defined YYLSP_NEEDED */
+dnl
+@output @output_parser_name@
b4_copyright([C++ Skeleton parser for LALR(1) parsing with Bison],
[2002])
-#include "b4_output_header_name"
+#include @output_header_name@
/* Enable debugging if requested. */
#if YYDEBUG
#endif /* !YYDEBUG */
int
-yy::b4_name::parse ()
+yy::b4_parser_class_name::parse ()
{
int nerrs = 0;
int errstatus = 0;
/* Try to take a decision without lookahead. */
n_ = pact_[[state_]];
- if (n_ == flag_)
+ if (n_ == pact_ninf_)
goto yydefault;
/* Read a lookahead token. */
}
n_ += ilooka_;
- if (n_ < 0 || n_ > last_ || check_[[n_]] != ilooka_)
+ if (n_ < 0 || last_ < n_ || check_[[n_]] != ilooka_)
goto yydefault;
/* Reduce or error. */
n_ = table_[[n_]];
if (n_ < 0)
{
- if (n_ == flag_)
+ if (n_ == table_ninf_)
goto yyerrlab;
else
{
{
YYCDEBUG << "Reducing via rule " << n_ - 1
<< " (line " << rline_[[n_]] << "), ";
- for (b4_uint_type(b4_prhs_max) i = prhs_[[n_]];
- rhs_[[i]] >= 0; ++i)
+ for (b4_int_type_for([b4_prhs]) i = prhs_[[n_]];
+ 0 <= rhs_[[i]]; ++i)
YYCDEBUG << name_[[rhs_[i]]] << ' ';
YYCDEBUG << "-> " << name_[[r1_[n_]]] << std::endl;
}
}
/* Line __line__ of __file__. */
-#line __oline__ "__ofile__"
+b4_syncline([@oline@], [@ofile@])
state_stack_.pop (len_);
semantic_stack_.pop (len_);
/* Shift the result of the reduction. */
n_ = r1_[[n_]];
state_ = pgoto_[[n_ - ntokens_]] + state_stack_[[0]];
- if (state_ >= 0 && state_ <= last_ && check_[[state_]] == state_stack_[[0]])
+ if (0 <= state_ && state_ <= last_ && check_[[state_]] == state_stack_[[0]])
state_ = table_[[state_]];
else
state_ = defgoto_[[n_ - ntokens_]];
#if YYERROR_VERBOSE
n_ = pact_[[state_]];
- if (n_ > flag_ && n_ < last_)
+ if (pact_ninf_ < n_ && n_ < last_)
{
- message = "parse error, unexpected ";
+ message = "syntax error, unexpected ";
message += name_[[ilooka_]];
{
int count = 0;
for (int x = (n_ < 0 ? -n_ : 0); x < ntokens_ + nnts_; ++x)
- if (check_[[x + n_]] == x)
+ if (check_[[x + n_]] == x && x != terror_)
++count;
if (count < 5)
{
count = 0;
for (int x = (n_ < 0 ? -n_ : 0); x < ntokens_ + nnts_; ++x)
- if (check_[[x + n_]] == x)
+ if (check_[[x + n_]] == x && x != terror_)
{
message += (!count++) ? ", expecting " : " or ";
message += name_[[x]];
}
else
#endif
- message = "parse error";
+ message = "syntax error";
error_ ();
}
goto yyerrlab1;
for (;;)
{
n_ = pact_[[state_]];
- if (n_ != flag_)
+ if (n_ != pact_ninf_)
{
n_ += terror_;
if (0 <= n_ && n_ <= last_ && check_[[n_]] == terror_)
}
void
-yy::b4_name::lex_ ()
+yy::b4_parser_class_name::lex_ ()
{
#if YYLSP_NEEDED
looka_ = yylex (&value, &location);
/* YYPACT[[STATE-NUM]] -- Index in YYTABLE of the portion describing
STATE-NUM. */
-const short
-yy::b4_name::pact_[[]] =
+const b4_int_type_for([b4_pact]) yy::b4_parser_class_name::pact_ninf_ = b4_pact_ninf;
+const b4_int_type_for([b4_pact])
+yy::b4_parser_class_name::pact_[[]] =
{
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 short
-yy::b4_name::defact_[[]] =
+const b4_int_type_for([b4_defact])
+yy::b4_parser_class_name::defact_[[]] =
{
b4_defact
};
/* YYPGOTO[[NTERM-NUM]]. */
-const short
-yy::b4_name::pgoto_[[]] =
+const b4_int_type_for([b4_pgoto])
+yy::b4_parser_class_name::pgoto_[[]] =
{
b4_pgoto
};
/* YYDEFGOTO[[NTERM-NUM]]. */
-const short
-yy::b4_name::defgoto_[[]] =
+const b4_int_type_for([b4_defgoto])
+yy::b4_parser_class_name::defgoto_[[]] =
{
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 short
-yy::b4_name::table_[[]] =
+const b4_int_type_for([b4_table]) yy::b4_parser_class_name::table_ninf_ = b4_table_ninf;
+const b4_int_type_for([b4_table])
+yy::b4_parser_class_name::table_[[]] =
{
b4_table
};
/* YYCHECK. */
-const short
-yy::b4_name::check_[[]] =
+const b4_int_type_for([b4_check])
+yy::b4_parser_class_name::check_[[]] =
{
b4_check
};
#if YYDEBUG
/* STOS_[[STATE-NUM]] -- The (internal number of the) accessing
symbol of state STATE-NUM. */
-const b4_uint_type(b4_stos_max)
-yy::b4_name::stos_[[]] =
+const b4_int_type_for([b4_stos])
+yy::b4_parser_class_name::stos_[[]] =
{
b4_stos
};
/* TOKEN_NUMBER_[[YYLEX-NUM]] -- Internal token number corresponding
to YYLEX-NUM. */
-const short
-yy::b4_name::token_number_[[]] =
+const b4_int_type_for([b4_toknum])
+yy::b4_parser_class_name::token_number_[[]] =
{
b4_toknum
};
#endif
/* YYR1[[YYN]] -- Symbol number of symbol that rule YYN derives. */
-const b4_uint_type(b4_r1_max)
-yy::b4_name::r1_[[]] =
+const b4_int_type_for([b4_r1])
+yy::b4_parser_class_name::r1_[[]] =
{
b4_r1
};
/* YYR2[[YYN]] -- Number of symbols composing right hand side of rule YYN. */
-const b4_uint_type(b4_r2_max)
-yy::b4_name::r2_[[]] =
+const b4_int_type_for([b4_r2])
+yy::b4_parser_class_name::r2_[[]] =
{
b4_r2
};
/* YYTNAME[[SYMBOL-NUM]] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at YYNTOKENS, nonterminals. */
const char*
-const yy::b4_name::name_[[]] =
+const yy::b4_parser_class_name::name_[[]] =
{
b4_tname
};
#if YYDEBUG
/* YYRHS -- A `-1'-separated list of the rules' RHS. */
-const yy::b4_name::RhsNumberType
-yy::b4_name::rhs_[[]] =
+const yy::b4_parser_class_name::RhsNumberType
+yy::b4_parser_class_name::rhs_[[]] =
{
b4_rhs
};
/* YYPRHS[[YYN]] -- Index of the first RHS symbol of rule number YYN in
YYRHS. */
-const b4_uint_type(b4_prhs_max)
-yy::b4_name::prhs_[[]] =
+const b4_int_type_for([b4_prhs])
+yy::b4_parser_class_name::prhs_[[]] =
{
b4_prhs
};
/* YYRLINE[[YYN]] -- source line where rule number YYN was defined. */
-const b4_uint_type(b4_rline_max)
-yy::b4_name::rline_[[]] =
+const b4_int_type_for([b4_rline])
+yy::b4_parser_class_name::rline_[[]] =
{
b4_rline
};
#endif
/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
-yy::b4_name::TokenNumberType
-yy::b4_name::translate_ (int token)
+yy::b4_parser_class_name::TokenNumberType
+yy::b4_parser_class_name::translate_ (int token)
{
static
const TokenNumberType
return undef_token_;
}
-const int yy::b4_name::eof_ = 0;
-const int yy::b4_name::last_ = b4_last;
-const int yy::b4_name::flag_ = b4_flag;
-const int yy::b4_name::nnts_ = b4_nterms_number;
-const int yy::b4_name::empty_ = -2;
-const int yy::b4_name::final_ = b4_final_state_number;
-const int yy::b4_name::terror_ = 1;
-const int yy::b4_name::errcode_ = 256;
-const int yy::b4_name::ntokens_ = b4_tokens_number;
-const int yy::b4_name::initdepth_ = b4_initdepth;
+const int yy::b4_parser_class_name::eof_ = 0;
+const int yy::b4_parser_class_name::last_ = b4_last;
+const int yy::b4_parser_class_name::nnts_ = b4_nterms_number;
+const int yy::b4_parser_class_name::empty_ = -2;
+const int yy::b4_parser_class_name::final_ = b4_final_state_number;
+const int yy::b4_parser_class_name::terror_ = 1;
+const int yy::b4_parser_class_name::errcode_ = 256;
+const int yy::b4_parser_class_name::ntokens_ = b4_tokens_number;
+const int yy::b4_parser_class_name::initdepth_ = b4_stack_depth_init;
-const unsigned yy::b4_name::user_token_number_max_ = b4_user_token_number_max;
-const yy::b4_name::TokenNumberType yy::b4_name::undef_token_ = b4_undef_token_number;
+const unsigned yy::b4_parser_class_name::user_token_number_max_ = b4_user_token_number_max;
+const yy::b4_parser_class_name::TokenNumberType yy::b4_parser_class_name::undef_token_ = b4_undef_token_number;
b4_epilogue
-
-#output "stack.hh"
+dnl
+@output stack.hh
b4_copyright([2002])
#ifndef BISON_STACK_HH
}
#endif // not BISON_STACK_HH
-
-#output "location.hh"
+dnl
+@output location.hh
b4_copyright([2002])
#ifndef BISON_LOCATION_HH
projects / bison.git / blobdiff