yysyntax_error: avoid duplicate lookahead collection.

[bison.git] / ChangeLog

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@@ -1,3 +1,51 @@
+2009-09-23  Joel E. Denny  <jdenny@clemson.edu>
+
+       yysyntax_error: avoid duplicate lookahead collection.
+       Except when memory reallocation is required, this change
+       eliminates the need to invoke yysyntax_error twice and thus to
+       repeat the collection of lookaheads.  It also prepares for
+       future extensions that will make those repetitions more
+       expensive and that will require additional memory management in
+       yysyntax_error.  Finally, it fixes an obscure bug already
+       exercised in the test suite.
+       * data/yacc.c (yysyntax_error): Add arguments for message
+       buffer variables stored in the parser.  Instead of size, return
+       status similar to yyparse status but indicating success of
+       message creation.  Other than the actual reallocation of the
+       message buffer, import and clean up memory management code
+       from...
+       (yyparse, yypush_parse): ... here.
+       * tests/regression.at (parse.error=verbose overflow): No longer
+       an expected failure.
+
+2009-09-23  Joel E. Denny  <jdenny@clemson.edu>
+
+       yysyntax_error: test memory management more.
+       * tests/atlocal.in (NO_WERROR_CFLAGS): New cpp macro.
+       * tests/regression.at (parse.error=verbose and
+       YYSTACK_USE_ALLOCA): New test group.
+       (parse.error=verbose overflow): New test group that reveals an
+       obscure bug.  Expected fail for now.
+
+2009-10-04  Joel E. Denny  <jdenny@clemson.edu>
+
+       benchmarks: use %debug consistently among grammars.
+       * etc/bench.pl.in (generate_grammar_triangular): Do not activate
+       %debug by default.  It can affect the timings even if yydebug=0.
+       (generate_grammar_calc): For consistency with other grammars,
+       use YYDEBUG environment variable to set yydebug.
+
+2009-10-03  Joel E. Denny  <jdenny@clemson.edu>
+
+       Remove dead code.
+       * src/symtab.c (symbol_pack): Here because every symbol's number
+       is always defined by this time.
+
+2009-10-03  Alex Rozenman  <rozenman@gmail.com>
+
+       Add additional space after periods in NEWS.
+       * NEWS (2.5): here.
+

 2009-09-29  Joel E. Denny  <jdenny@clemson.edu>
 
        Use the correct conversion specifier for size_t.
 2009-09-29  Joel E. Denny  <jdenny@clemson.edu>
 
        Use the correct conversion specifier for size_t.


@@ -22,16 +70,17 @@
 2009-09-19  Alex Rozenman  <rozenman@gmail.com>
 
        Keep sub-messages aligned. Fix strings for translation.
 2009-09-19  Alex Rozenman  <rozenman@gmail.com>
 
        Keep sub-messages aligned. Fix strings for translation.

-       * src/location.h: (location_print): Add return value.
-       * src/location.c: (location_print): Return number of printed
+       * src/location.h (location_print): Add return value.
+       * src/location.c (location_print): Return number of printed

        characters.
        characters.

-       * src/complain.h: Two new functions (complain_at_indent,
-       warn_at_indent).
-       * src/complain.cpp: Implement the alignment mechanism. Add new
-       static variable (indent_ptr). Use and update it (error_message,
-       complain_at_indent, warn_at_indent).
-       * src/scan-code.l: Fix strings for translations. Use new *_indent
-       functions (parse_ref, show_sub_messages).
+       * src/complain.h (complain_at_indent, warn_at_indent): Prototype
+       new functions.
+       * src/complain.cpp (indent_ptr): New static variable.
+       (error_message, complain_at_indent, warn_at_indent): Implement
+       the alignment mechanism.
+       * src/scan-code.l (parse_ref, show_sub_messages): Fix strings
+       for translations. Use new alignment mechanism.
+       * tests/named-ref.at: Adjust test-cases.

        * NEWS (2.5): Add an announcement about named references.
 
 2009-09-17  Akim Demaille  <demaille@gostai.com>
        * NEWS (2.5): Add an announcement about named references.
 
 2009-09-17  Akim Demaille  <demaille@gostai.com>