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+2009-05-19  Akim Demaille  <demaille@gostai.com>
+
+	remove useless variable.
+	* src/getargs.c (skeleton_arg): Remove now useless variable.
+	Should help the compiler see that this printf-like call is sane.
+
+2009-05-15  Akim Demaille  <demaille@gostai.com>
+
+	Rename token.prefix as api.tokens.prefix.
+	Discussed here.
+	http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00024.html.
+
+	* NEWS, data/bison.m4, data/c.m4, data/java.m4, doc/bison.texinfo,
+	* tests/c++.at, tests/calc.at, tests/java.at, tests/local.at
+	(token.prefix): Rename as...
+	(api.tokens.prefix): this.
+
+2009-05-11  Akim Demaille  <demaille@gostai.com>
+
+	doc: use C++ headers.
+	* doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
+	headers.
+
+2009-05-11  Akim Demaille  <demaille@gostai.com>
+
+	doc: token.prefix
+	* doc/bison.simple (Decl Summary): Document token.prefix.
+	(Calc++ Parser): Various fixes.
+	Formatting changes.
+	Use token.prefix.
+	Introduce a macro TOKEN to shorten the code and make it more
+	readable.
+	(Calc++ Scanner): Adjust.
+	* NEWS (Variable token.prefix): New.
+
+2009-05-04  Akim Demaille  <demaille@gostai.com>
+
+	bison: catch bad symbol names.
+	* src/scan-gram.l({int}{id}): Report as an invalid identifier.
+	* tests/input.at: Adjust.
+
+2009-05-04  Akim Demaille  <demaille@gostai.com>
+
+	identifiers: dashes are letters.
+	Dashes can now start identifiers (symbols and directives).
+
+	* src/scan-gram.l ({letter}): Add dash.
+	({id}): Remove it.
+	* tests/input.at (Symbols): Adjust.
+	Remove stray comment.
+	* tests/regression.at (Invalid inputs): Adjust error message.
+	* doc/bison.texinfo (Symbols): Update.
+
+2009-05-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Declare %code to be a permanent feature.
+	* NEWS (2.4.2): Here.
+	* doc/bison.texinfo (Prologue Alternatives): Don't say it's
+	experimental.
+	(Decl Summary): Likewise.
+
+2009-04-30  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Convert underscores to dashes in some %define variable names.
+	For now, just api.push-pull and lr.keep-unreachable-states.
+	Maintain old names for backward compatibility.
+	* NEWS (2.5): Document.
+	* data/c.m4 (b4_identification): Update comment.
+	* data/yacc.c: Update access.
+	* doc/bison.texinfo: Update.
+	* etc/bench.pl.in (bench_push_parser): Update use.
+	* src/files.c (tr): Move to...
+	* src/getargs.c, src/getargs.h (tr): ... here because I can't
+	think of a better place to expose it.  My logic is that, for all
+	uses of tr so far, command-line arguments can be involved, and
+	getargs.h is already included.
+	* src/main.c (main): Update access.
+	* src/muscle_tab.c (muscle_percent_define_insert): Convert old
+	variable names to new variable names before assigning value.
+	* src/reader.c (reader): Update setting default.
+	* tests/calc.at: Update uses.
+	* tests/conflicts.at (Unreachable States After Conflict
+	Resolution): Update use.
+	* tests/input.at (%define enum variables): Update use.
+	(%define backward compatibility): New test group.
+	* tests/push.at: Update uses.
+	* tests/reduce.at: Update uses.
+	* tests/torture.at: Update uses.
+
 2009-04-30  Joel E. Denny  <jdenny@ces.clemson.edu>
 
 	Set all front-end %define defaults in one place.