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authormarha <marha@users.sourceforge.net>2011-01-19 20:29:24 +0000
committermarha <marha@users.sourceforge.net>2011-01-19 20:29:24 +0000
commitcbe6ed88f01b654241301539d8fa3f6111a0a6de (patch)
tree0fe25b7083dc4cc0c3e162fe18e9d427fcb712a5 /tools/mhmake/src/bisondata/c++.m4
parentcdc60fdcddbe5666aac11af34c6c030d4a670b99 (diff)
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Use bison instead of bison++
The += operator should also take the environment variables into account Solved problem when & in redirect operator on command line Solved syntax error when SPACE was follewed by SPACE Removed kdevelop3 project files Enable debug info in debug build on linux Added support for foreach function Fixed dependency problem for implicit rules with extra dependencies Increased gnu make compatibility: allow implicit rules without commands Solved wrong error message when it cannot build a target in mhmake_dbg On windows: when checking the extension of a command: make sure a / does not cause a wrong decision Added safety against recursive implicit rules. Fixed wrong check on failure to open makefiles. Make sure no message is printed when -include is used flex and bison generated files: make sure the #line statements have the correct line numbers for the debugger after having added one line in the beginning of the file after running the flex/bison. Make sure that the variable defined just before an error or message/info macro is defined when the message is generated. mhmake_dbg: print error message when a target cannot be build because the directory of the target does not exist (and no rule is defined for it) Reformatted message/info macro output Also print makefile and line number when using error and message macro Solved crash in mhmake_dbg when -C is specified on the command line Solved problem in macro expansion when 2 patsubst inside each other addprefix should not give an error when done on an empty string Use comspec when echo is followed by a pipe character (piping is not supported by the echo internal command of mhmake) Solved possible stack curruption (there was little chance that this was occuring)
Diffstat (limited to 'tools/mhmake/src/bisondata/c++.m4')
-rw-r--r--tools/mhmake/src/bisondata/c++.m4170
1 files changed, 170 insertions, 0 deletions
diff --git a/tools/mhmake/src/bisondata/c++.m4 b/tools/mhmake/src/bisondata/c++.m4
new file mode 100644
index 000000000..a27064d7b
--- /dev/null
+++ b/tools/mhmake/src/bisondata/c++.m4
@@ -0,0 +1,170 @@
+ -*- Autoconf -*-
+
+# C++ skeleton for Bison
+
+# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 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 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, see <http://www.gnu.org/licenses/>.
+
+m4_include(b4_pkgdatadir/[c.m4])
+
+## ---------------- ##
+## Default values. ##
+## ---------------- ##
+
+# Default parser class name.
+b4_percent_define_default([[parser_class_name]], [[parser]])
+b4_percent_define_default([[location_type]], [[location]])
+b4_percent_define_default([[filename_type]], [[std::string]])
+b4_percent_define_default([[namespace]], m4_defn([b4_prefix]))
+b4_percent_define_default([[global_tokens_and_yystype]], [[false]])
+b4_percent_define_default([[define_location_comparison]],
+ [m4_if(b4_percent_define_get([[filename_type]]),
+ [std::string], [[true]], [[false]])])
+
+
+## ----------- ##
+## Namespace. ##
+## ----------- ##
+
+m4_define([b4_namespace_ref], [b4_percent_define_get([[namespace]])])
+
+# Don't permit an empty b4_namespace_ref. Any `::parser::foo' appended to it
+# would compile as an absolute reference with `parser' in the global namespace.
+# b4_namespace_open would open an anonymous namespace and thus establish
+# internal linkage. This would compile. However, it's cryptic, and internal
+# linkage for the parser would be specified in all translation units that
+# include the header, which is always generated. If we ever need to permit
+# internal linkage somehow, surely we can find a cleaner approach.
+m4_if(m4_bregexp(b4_namespace_ref, [^[ ]*$]), [-1], [],
+[b4_complain_at(b4_percent_define_get_loc([[namespace]]),
+ [[namespace reference is empty]])])
+
+# Instead of assuming the C++ compiler will do it, Bison should reject any
+# invalid b4_namepsace_ref that would be converted to a valid
+# b4_namespace_open. The problem is that Bison doesn't always output
+# b4_namespace_ref to uncommented code but should reserve the ability to do so
+# in future releases without risking breaking any existing user grammars.
+# Specifically, don't allow empty names as b4_namespace_open would just convert
+# those into anonymous namespaces, and that might tempt some users.
+m4_if(m4_bregexp(b4_namespace_ref, [::[ ]*::]), [-1], [],
+[b4_complain_at(b4_percent_define_get_loc([[namespace]]),
+ [[namespace reference has consecutive "::"]])])
+m4_if(m4_bregexp(b4_namespace_ref, [::[ ]*$]), [-1], [],
+[b4_complain_at(b4_percent_define_get_loc([[namespace]]),
+ [[namespace reference has a trailing "::"]])])
+
+m4_define([b4_namespace_open],
+[b4_user_code([b4_percent_define_get_syncline([[namespace]])
+[namespace ]m4_bpatsubst(m4_dquote(m4_bpatsubst(m4_dquote(b4_namespace_ref),
+ [^\(.\)[ ]*::], [\1])),
+ [::], [ { namespace ])[ {]])])
+
+m4_define([b4_namespace_close],
+[b4_user_code([b4_percent_define_get_syncline([[namespace]])
+m4_bpatsubst(m4_dquote(m4_bpatsubst(m4_dquote(b4_namespace_ref),
+ [^\(.\)[ ]*\(::\)?\([^][:]\|:[^][:]\)*],
+ [\1])),
+ [::\([^][:]\|:[^][:]\)*], [} ])[} // ]b4_namespace_ref])])
+
+
+# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -----------------------------------------------------
+# Output the definition of the tokens as enums.
+m4_define([b4_token_enums],
+[/* 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_@{($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_@{($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;])