home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Chip 2007 January, February, March & April
/
Chip-Cover-CD-2007-02.iso
/
Pakiet bezpieczenstwa
/
mini Pentoo LiveCD 2006.1
/
mpentoo-2006.1.iso
/
livecd.squashfs
/
usr
/
share
/
bison
/
c++.m4
< prev
next >
Wrap
Text File
|
2006-04-25
|
3KB
|
122 lines
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
## ---------------- ##
## Default values. ##
## ---------------- ##
# Default parser class name.
m4_define_default([b4_parser_class_name], [parser])
m4_define_default([b4_location_type], [location])
m4_define_default([b4_filename_type], [std::string])
# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
# -----------------------------------------------------
# Output the definition of the tokens (if there are) as enums.
m4_define([b4_token_enums],
[m4_if([$@], [[]], [],
[/* Tokens. */
enum yytokentype {
m4_map_sep([ b4_token_enum], [,
],
[$@])
};
])])
## ----------------- ##
## 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], [.$3]))])
# b4_lhs_location()
# -----------------
# Expansion of @$.
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;])