2007-01-23 Paolo Bonzini <bonzini@gnu.org>

Simplify implementation of unqualified %code, implement macros for
	uniform treatment of boolean %define flags.  Document %define.
	* data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
	b4_percent_code_ifdef): New.
	(b4_percent_code_get): Map unqualified %code to b4_percent_code().
	* data/c++.m4: Define default value for global_tokens_and_yystype.
	* data/glr.cc: Likewise.
	* data/location.cc: Use b4_percent_define_flag_if.

	* doc/bison.texinfo (Directives): Document %define.

	* src/parse-gram.y (Unqualified %code): Change muscle name to
	b4_percent_code().
	(content.opt): Default to empty.
This commit is contained in:
Paolo Bonzini
2007-01-23 12:24:27 +00:00
parent 5f340b4884
commit 592d0b1eb5
10 changed files with 203 additions and 144 deletions

View File

@@ -114,7 +114,7 @@ namespace ]b4_percent_define_get([[namespace]])[
{
return begin + -width;
}
]m4_if(b4_percent_define_get([[define_location_comparison]]), [1], [[
]b4_percent_define_flag_if([[define_location_comparison]], [[
/// Compare two position objects.
inline bool
operator== (const position& pos1, const position& pos2)
@@ -236,7 +236,7 @@ namespace ]b4_percent_define_get([[namespace]])[
res.columns (width);
return res;
}
]m4_if(b4_percent_define_get([[define_location_comparison]]), [1], [[
]b4_percent_define_flag_if([[define_location_comparison]], [[
/// Compare two location objects.
inline bool
operator== (const location& loc1, const location& loc2)