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

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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
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data/c++.m4
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@@ -31,6 +31,7 @@ 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]], [[0]])
b4_percent_define_default([[define_location_comparison]],
[m4_if(b4_percent_define_get([[filename_type]]),
[std::string], [[1]], [[0]])])