+2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Rename <!> to <>. Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
+ * NEWS (2.3a+): Update.
+ * doc/bison.texinfo (Freeing Discarded Symbols, Bison Symbols):
+ Update.
+ * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
+ * src/scan-gram.l (INITIAL): Implement.
+ * src/symlist.c (symbol_list_default_tagless_new): Update comment.
+ * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
+ comment.
+ * tests/actions.at (Default tagless %printer and %destructor,
+ Default tagged and per-type %printer and %destructor,
+ Default %printer and %destructor are not for error or $undefined,
+ Default %printer and %destructor are not for $accept,
+ Default %printer and %destructor for mid-rule values): Update.
+ * tests/input.at (Default %printer and %destructor redeclared,
+ Unused values with default %destructor): Update.
+
+2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Don't let %prec take a nonterminal.
+ * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
+ token.
+ * tests/input.at (%prec takes a token): New test checking that %prec
+ won't take a nonterminal.
+
+2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
+ it was double-quoted.
+ * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
+ grammar is maintained with Bison's highest standards.
+ * src/getargs.c: Fix some typos in Doxygen comments.
+
+2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Fix memory leaks in scanners generated by at least Flex 2.5.9 and
+ later. Reported by Paul Eggert in
+ <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
+ * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
+ * src/scan-code.l (translate_action): Don't bother invoking
+ yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
+ (code_scanner_free): Instead of invoking
+ yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
+ which frees more.
+ * src/scan-gram.l (gram_scanner_free): Likewise.
+ * src/scan-skel.l (scan_skel): Likewise.
+
+2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/files.c (tr): Change return type to void.
+ * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
+ has been called previously for the same key.
+ (muscle_find): Return storage instead of value so that
+ --enable-gcc-warnings doesn't produce warnings that the return discards
+ const. aver that the value and storage are the same since storage
+ could potentially be NULL when value is not.
+ * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
+ same as 0.
+
+2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
+ the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
+ us a slightly cleaner distribution, and also works.
+ * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
+ gnulib changes.
+
+2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
+ and Paul Eggert <eggert@cs.ucla.edu>
+
+ Don't let Bison leak memory except when it complains.
+ * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
+ (spec_defines_file, dir_prefix): Now char *, not const char *,
+ since they are freed.
+ * src/files.c: Likewise.
+ (all_but_ext, all_but_tab_ext, src_extension, header_extension):
+ Likewise.
+ (tr): Now operates in-place. All uses changed.
+ (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
+ values.
+ (compute_file_name_parts, compute_output_file_names): Don't store
+ read-only data in variables that will be freed.
+ (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
+ src_extension, and header_extension.
+ (output_file_names_free): New public function to free
+ spec_verbose_file, spec_graph_file, spec_defines_file,
+ parser_file_name, and dir_prefix.
+ * src/getargs.c (getargs): Don't store read-only data in variables that
+ will be freed.
+ * src/main.c (main): Invoke output_file_names_free, code_scanner_free
+ (which previously existed but was unused), and quotearg_free.
+ * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
+ * src/muscle_tab.c: Likewise.
+ (muscle_entry): Make the value char const *,
+ and add a new storage member that is char * and can be freed.
+ (muscle_entry_free): New private function.
+ (muscle_init): Use it instead of free.
+ (muscle_insert, muscle_grow): Update and use new storage member.
+ (muscle_code_grow): Free the string passed to muscle_grow
+ since it's not needed anymore.
+ * src/parse-gram.y (%union): Make `chars' member a `char const *', and
+ add a new `char *code' member.
+ ("{...}"): Declare semantic type as code.
+ * src/scan-code.h (translate_rule_action):
+ (translate_symbol_action, translate_code, translate_action): Return
+ `char const *' rather than `char *' since external code should not free
+ these strings.
+ * src/scan-code.l: Likewise.
+ * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
+ which is "{...}" in the parser.
+ * tests/Makefile.am (maintainer-check-valgrind): Set
+ VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
+ Valgrind.
+ * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
+ complain.
+ * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
+ expecting a non-zero exit status sets --leak-check=summary and
+ --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
+ this case, and we don't want to hear about it.
+
+2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap (runtime-po/Makevars): Derive from po/Makevars
+ instead of from the template, to simplify configuration a bit.
+ * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
+ and m4/wint_t.m4, as they are needed with the latest gnulib.
+
+2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Disable unset/unused mid-rule value warnings by default, and recognize
+ --warnings=midrule-values to enable them. Discussed starting at
+ <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
+ * NEWS (2.3a+): Mention.
+ * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
+ warnings): Add entry for midrule-values subargument.
+ * src/reader.c (symbol_should_be_used): Don't return true just because
+ the value is a set/used mid-rule value unless
+ --warnings=midrule-values was specified.
+ * tests/input.at (Unused values, Unused values before symbol
+ declarations): Run tests with and without --warnings=midrule-values.
+
+ * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
+ than LIST_FREE directly.
+
+2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Finish implementing --warnings=error, which should not be implied by
+ --warnings=all (or by its synonyms -W and --warnings without
+ subarguments).
+ * src/complain.c (set_warning_issued): New function to report that
+ warnings are being treated as errors and to record an error if so.
+ Invoke...
+ (warn_at, warn): ... here.
+ * src/getargs.c (warnings_args, warnings_types): Reorder so that
+ "error - warnings are errors" does not appear above "all - all of the
+ above".
+ (getargs): For -W and --warnings without subarguments, don't let
+ FLAGS_ARGMATCH set warnings_error in warnings_flag.
+ * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
+
+2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
+ empty subargument list. For example: `bison --warnings= parser.y'.
+
+2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/push.c, data/yacc.c: Make sure there's a newline at the end of
+ the parser header file so that gcc doesn't warn.
+
+2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Split the default %destructor/%printer into two kinds: <*> and <!>.
+ Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
+ * NEWS (2.3a+): Mention.
+ * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
+ previous change today related to mid-rules.
+ (Bison Symbols): Remove %symbol-default and add <*> and <!>.
+ * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
+ (TYPE_TAG_ANY): Add as <*>.
+ (TYPE_TAG_NONE): Add as <!>.
+ (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
+ for <*> and <!>.
+ * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
+ (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
+ * src/symlist.c (symbol_list_default_new): Split into tagged and
+ tagless versions.
+ (symbol_list_destructor_set, symbol_list_printer_set): Split
+ SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
+ SYMLIST_DEFAULT_TAGLESS.
+ * src/symlist.h: Update symbol_list_default*_new prototypes.
+ (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
+ SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
+ * src/symtab.c (default_destructor, default_destructor_location,
+ default_printer, default_printer_location): Split each into tagged and
+ tagless versions.
+ (symbol_destructor_get, symbol_destructor_location_get,
+ symbol_printer_get, symbol_printer_location_get): Implement tagged
+ default and tagless default cases.
+ (default_destructor_set, default_printer_set): Split each into tagged
+ and tagless versions.
+ * src/symtab.h: Update prototypes.
+ * tests/actions.at (Default %printer and %destructor): Rename to...
+ (Default tagless %printer and %destructor): ... this, and extend.
+ (Per-type %printer and %destructor): Rename to...
+ (Default tagged and per-type %printer and %destructor): ... this, and
+ extend.
+ (Default %printer and %destructor for user-defined end token): Extend.
+ (Default %printer and %destructor are not for error or $undefined):
+ Update.
+ (Default %printer and %destructor are not for $accept): Update.
+ (Default %printer and %destructor for mid-rule values): Extend.
+ * tests/input.at (Default %printer and %destructor redeclared): Extend.
+ (Unused values with default %destructor): Extend.
+
+2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Don't apply the default %destructor/%printer to an unreferenced midrule
+ value. Mentioned at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
+ * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
+ like $@n instead of just @n so that the default %destructor/%printer
+ logic doesn't see them as user-defined symbols.
+ (symbol_is_dummy): Check for both forms of the name.
+ * src/reader.c (packgram): Remove the `$' from each midrule symbol
+ name for which the midrule value is referenced in any action.
+ * tests/actions.at (Default %printer and %destructor for mid-rule
+ values): New test.
+ * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
+ for change to dummy symbol names.
+
+2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Warn about unset midrule $$ if the corresponding $n is used.
+ * src/reader.c (symbol_should_be_used): Check midrule parent rule for
+ $n usage.
+ (packgram): Before invoking grammar_rule_check on any rule, make sure
+ all actions have already been scanned in order to set `used' flags.
+ Otherwise, checking that a midrule's $$ is set will not always work
+ properly because the midrule check must forward-reference the midrule's
+ parent rule.
+ * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
+ warning.
+
+2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ More improvements to the documentation of the prologue alternatives:
+ * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
+ Bison manual.
+ * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
+ some text to clarify the relative importance of the new directives and
+ to show how these directives may be viewed as code labels.
+
+2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Similar to the recently removed %before-header, add %code-top as the
+ alternative to the pre-prologue. Mentioned at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
+ Also, let the prologue alternatives appear in the grammar section.
+ * src/parse-gram.y (PERCENT_CODE_TOP): New token.
+ (prologue_declaration): Move the existing prologue alternatives to...
+ (grammar_declaration): ... here and add %code-top.
+ * src/scan-gram.l (PERCENT_CODE_TOP): New token.
+
+ Clean up and extend documentation for the prologue alternatives.
+ * NEWS (2.3a+): Describe prologue alternatives.
+ * doc/bison.texinfo (Prologue): Move discussion of prologue
+ alternatives to...
+ (Prologue Alternatives): ... this new section, and extend it to discuss
+ all 4 directives in detail.
+ (Bison Symbols): Clean up discussion of prologue alternatives and add
+ %code-top.
+
+2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ DJGPP specific issues.
+
+ * djgpp/config.bat: config.hin has been moved to lib. Adjust
+ config.bat accordingly.
+ * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
+ * djgpp/config.site: Likewise.
+
2006-10-16 Paolo Bonzini <bonzini@gnu.org>
Replace %*-header with %provides, %requires, %code. See discussion at
projects / bison.git / blobdiff