# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA
-## ---------------- ##
-## Default values. ##
-## ---------------- ##
-
-# Default parser class name.
-m4_define_default([b4_parser_class_name], [parser])
-
-
-
-## ----------------- ##
-## Semantic Values. ##
-## ----------------- ##
-
-
-# b4_lhs_value([TYPE])
-# --------------------
-# Expansion of $<TYPE>$.
-m4_define([b4_lhs_value],
-[(yyval[]m4_ifval([$1], [.$1]))])
-
-
-# b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
-# --------------------------------------
-# Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
-# symbols on RHS.
-m4_define([b4_rhs_value],
-[(yysemantic_stack_@{m4_eval([$1 - $2])@}m4_ifval([$3], [.$3]))])
-
-m4_define_default([b4_location_type], [location])
-m4_define_default([b4_filename_type], [std::string])
-
-# b4_lhs_location()
-# -----------------
-# Expansion of @$.
-m4_define([b4_lhs_location],
-[(yyloc)])
-
-
-# b4_rhs_location(RULE-LENGTH, NUM)
-# ---------------------------------
-# Expansion of @NUM, where the current rule has RULE-LENGTH symbols
-# on RHS.
-m4_define([b4_rhs_location],
-[(yylocation_stack_@{m4_eval([$1 - $2])@})])
-
-
-# b4_parse_param_decl
-# -------------------
-# Extra formal arguments of the constructor.
-# Change the parameter names from "foo" into "foo_yyarg", so that
-# there is no collision bw the user chosen attribute name, and the
-# argument name in the constructor.
-m4_define([b4_parse_param_decl],
-[m4_ifset([b4_parse_param],
- [m4_map_sep([b4_parse_param_decl_1], [, ], [b4_parse_param])])])
-
-m4_define([b4_parse_param_decl_1],
-[$1_yyarg])
-
-
-
-# b4_parse_param_cons
-# -------------------
-# Extra initialisations of the constructor.
-m4_define([b4_parse_param_cons],
- [m4_ifset([b4_parse_param],
- [,
- b4_cc_constructor_calls(b4_parse_param)])])
-m4_define([b4_cc_constructor_calls],
- [m4_map_sep([b4_cc_constructor_call], [,
- ], [$@])])
-m4_define([b4_cc_constructor_call],
- [$2 ($2_yyarg)])
-
-# b4_parse_param_vars
-# -------------------
-# Extra instance variables.
-m4_define([b4_parse_param_vars],
- [m4_ifset([b4_parse_param],
- [
- /* User arguments. */
-b4_cc_var_decls(b4_parse_param)])])
-m4_define([b4_cc_var_decls],
- [m4_map_sep([b4_cc_var_decl], [
-], [$@])])
-m4_define([b4_cc_var_decl],
- [ $1;])
-
-
+m4_include(b4_pkgdatadir/[c++.m4])
# We do want M4 expansion after # for CPP macros.
m4_changecom()
class location;
}
-]b4_token_defines(b4_tokens)[
+]b4_token_enums(b4_tokens)[
/* Copy the first part of user declarations. */
]b4_pre_prologue[
# 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[
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;
+ typedef YYSTYPE semantic_type;
/// Symbol locations.
- typedef traits<]b4_parser_class_name[>::location_type location_type;
+ typedef ]b4_location_type[ location_type;
public:
/// Build a parser object.
/// Generate an error message.
/// \param tok the look-ahead token.
- virtual std::string yysyntax_error_ (int tok);
+ virtual std::string yysyntax_error_ (YYERROR_VERBOSE_IF (int tok));
#if YYDEBUG
/// \brief Report a symbol on the debug stream.
/// State numbers.
- typedef traits<]b4_parser_class_name[>::state_type state_type;
+ typedef int state_type;
/// State stack type.
typedef stack<state_type> state_stack_type;
/// Semantic value stack type.
location_stack_type yylocation_stack_;
/// Internal symbol numbers.
- typedef traits<]b4_parser_class_name[>::token_number_type token_number_type;
+ typedef ]b4_int_type_for([b4_translate])[ token_number_type;
/* Tables. */
/// For a state, the index in \a yytable_ of its portion.
static const ]b4_int_type_for([b4_pact])[ yypact_[];
#if YYDEBUG
/// A type to store symbol numbers and -1.
- typedef traits<]b4_parser_class_name[>::rhs_number_type rhs_number_type;
+ typedef ]b4_int_type_for([b4_rhs])[ 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_.
int
yy::]b4_parser_class_name[::parse ()
{
- /* Look-ahead and look-ahead in internal form. */
- int yylooka;
- int yyilooka;
+ /// Look-ahead and look-ahead in internal form.
+ int yychar;
+ int yytoken;
/// Semantic value of the look-ahead.
semantic_type yylval;
/* Start. */
yystate_ = 0;
- yylooka = yyempty_;
+ yychar = yyempty_;
]m4_ifdef([b4_initial_action], [
m4_pushdef([b4_at_dollar], [yylloc])dnl
goto yydefault;
/* Read a look-ahead token. */
- if (yylooka == yyempty_)
+ if (yychar == yyempty_)
{
YYCDEBUG << "Reading a token: ";
- yylooka = ]b4_c_function_call([yylex], [int],
+ yychar = ]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_)
+ if (yychar <= yyeof_)
{
- yylooka = yyilooka = yyeof_;
+ yychar = yytoken = yyeof_;
YYCDEBUG << "Now at end of input." << std::endl;
}
else
{
- yyilooka = yytranslate_ (yylooka);
- YY_SYMBOL_PRINT ("Next token is", yyilooka, &yylval, &yylloc);
+ yytoken = yytranslate_ (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &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)
+ yyn_ += yytoken;
+ if (yyn_ < 0 || yylast_ < yyn_ || yycheck_[yyn_] != yytoken)
goto yydefault;
/* Reduce or error. */
goto yyacceptlab;
/* Shift the look-ahead token. */
- YY_SYMBOL_PRINT ("Shifting", yyilooka, &yylval, &yylloc);
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
/* Discard the token being shifted unless it is eof. */
- if (yylooka != yyeof_)
- yylooka = yyempty_;
+ if (yychar != yyeof_)
+ yychar = yyempty_;
yysemantic_stack_.push (yylval);
yylocation_stack_.push (yylloc);
if (!yyerrstatus_)
{
++yynerrs_;
- error (yylloc, yysyntax_error_ (yyilooka));
+ error (yylloc, yysyntax_error_ (YYERROR_VERBOSE_IF (yytoken)));
}
yyerror_range[0] = yylloc;
/* If just tried and failed to reuse look-ahead token after an
error, discard it. */
- if (yylooka <= yyeof_)
+ if (yychar <= yyeof_)
{
/* Return failure if at end of input. */
- if (yylooka == yyeof_)
+ if (yychar == yyeof_)
YYABORT;
}
else
{
- yydestruct_ ("Error: discarding", yyilooka, &yylval, &yylloc);
- yylooka = yyempty_;
+ yydestruct_ ("Error: discarding", yytoken, &yylval, &yylloc);
+ yychar = yyempty_;
}
}
goto yyreturn;
yyreturn:
- if (yylooka != yyeof_ && yylooka != yyempty_)
- yydestruct_ ("Cleanup: discarding lookahead", yyilooka, &yylval, &yylloc);
+ if (yychar != yyeof_ && yychar != yyempty_)
+ yydestruct_ ("Cleanup: discarding lookahead", yytoken, &yylval, &yylloc);
while (yystate_stack_.height () != 1)
{
// Generate an error message.
std::string
-yy::]b4_parser_class_name[::yysyntax_error_ (int tok)
+yy::]b4_parser_class_name[::yysyntax_error_ (YYERROR_VERBOSE_IF (int tok))
{
std::string res;
#if YYERROR_VERBOSE
projects / bison.git / blobdiff