X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/3b452f4ea6f6e69ba90d93cf1bed2ef1437f5b29..2d2c1a2decf4785a02315913cf52e45b5c1ac4f8:/ChangeLog diff --git a/ChangeLog b/ChangeLog index c89138a7..c1980bbd 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,293 @@ +2006-08-14 Joel E. Denny + + * src/scan-gram.l (braces_level, context_state): Make these globals + static. + +2006-08-14 Joel E. Denny + + In the grammar scanner, STRING_FINISH unclosed constructs and return + them to the parser in order to improve error messages. + * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER, + SC_BRACED_CODE, SC_PROLOGUE): Implement. + * tests/input.at (Unclosed constructs): New test case. + * tests/regression.at (Invalid inputs): Update now that unclosed %{ is + seen. + + * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove + unused global. + +2006-08-13 Joel E. Denny + + Handle string aliases for character tokens correctly. + * src/symtab.c (symbol_user_token_number_set): If the token has an + alias, check and set its alias's user token number instead of its own, + which is set to indicate the alias. Previously, every occurrence of + the character token in the grammar overwrote that alias indicator with + the character code. + * tests/input.at (String aliases for character tokens): New test. + +2006-08-12 Joel E. Denny + + * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts. + +2006-08-11 Paul Eggert + + * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT, + to prevent failures when building on older platforms. + Check for autopoint failure. + Set XGETTEXT_OPTIONS to values that check for C format strings, + so that translators are warned about them (this also helps + prevent core dumps). + + * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer + function, since it simplifies our code a bit. + + * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare + rather than -W, so we don't get bogus warnings about sign comparisons. + Add -Wpointer-arith, since that warning is useful (it reports code + that does not conform to C89 and that some compilers reject). + * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change, + since it's no longer needed. + +2006-08-10 Joel E. Denny + + Clean up scanners a bit. + * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack + definitions so gcc won't warn when obstack_for_string is unused. + * src/scan-code.l: config.h and system.h are already #include'd by + scan-code-c.c, so get rid of them here. + * src/scan-gram.l: Likewise. + * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack + definitions rather than duplicating the rest of it. + * src/scan-gram-c.c, scan-skel-c.c: #include "system.h". + +2006-08-09 Joel E. Denny + + Suppress signed/unsigned comparison warnings for yycheck. + * data/c.m4 (b4_safest_int_type): New macro. + * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against + a signed int type, cast it to b4_safest_int_type first. + * data/yacc.c: Likewise. + (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is + also overwritten. + +2006-08-09 Ralf Wildenhues (tiny change) + + * doc/bison.texinfo: Fix some typos. + +2006-08-02 Paul Eggert + + * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4, + po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4. + + * bootstrap (gnulib_tool): Stop using --assume-autoconf; + the latest gnulib does this a different way. + (get_translations): Sharuzzaman Ahmat Raslan reported that the ms + translation was patched, so stop omitting it. + +2006-07-29 Joel E. Denny + + Enable declaration of default %printer/%destructor. Make the parser + use these for all user-declared grammar symbols for which the user does + not declare a specific %printer/%destructor. Thus, the parser uses it + for token 0 if the user declares it but not if Bison generates it as + $end. Discussed starting at + , + , + and + . + * NEWS (2.3+): Mention. + * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to + declare a %destructor for a mid-rule's semantic value. It's just + impossible to declare one specific to it. + (Freeing Discarded Symbols): Mention that @$ can be used in %destructor + code. Describe default %destructor form. + * src/parse-gram.y (grammar_declaration): Parse default + %printer/%destructor declarations. + * src/output.c (symbol_destructors_output): Use symbol_destructor_get + and symbol_destructor_location_get rather than accessing the destructor + and destructor_location members of struct symbol. + (symbol_printers_output): Likewise but for %printer's. + * src/reader.c (symbol_should_be_used): Likewise but for %destructor's + again. + * src/symtab.c (default_destructor, default_destructor_location, + default_printer, default_printer_location): New static global + variables to record the default %destructor and %printer. + (symbol_destructor_get, symbol_destructor_location_get, + symbol_printer_get, symbol_printer_location_get): New functions to + compute the appropriate %destructor and %printer for a symbol. + (default_destructor_set, default_printer_set): New functions to set the + default %destructor and %printer. + * src/symtab.h: Prototype all those new functions. + * tests/actions.at (Default %printer and %destructor): New test to + check that the right %printer and %destructor are called, that they're + not called for $end, and that $$ and @$ work correctly. + (Default %printer and %destructor for user-declared end token): New + test to check that the default %printer and %destructor are called for + a user-declared end token. + * tests/input.at (Default %printer and %destructor redeclared, Unused + values with default %destructor): New tests to check related grammar + warnings and errors. + +2006-07-29 Joel E. Denny + + Clean up handling of %destructor for the end token (token 0). + Discussed starting at + + and + . + + Make the skeletons consistent in how they pop the end token and invoke + its %destructor. + * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start + state, which has token number 0, since this would invoke the + %destructor for the end token. + * data/lalr1.cc (yy::parser::parse): Don't check for the final state + until after shifting the end token, or else it won't be popped. + * data/yacc.c (yyparse): Likewise. + + * data/glr.c (yyparse): Clear the lookahead after shifting it even when + it's the end token. Upon termination, destroy an unshifted lookahead + even when it's the end token. + * data/lalr1.cc (yy::parser::parse): Likewise. + * data/yacc.c (yyparse): Likewise. + + * src/reader.c (packgram): Don't check rule 0. This suppresses unused + value warnings for the end token when the user gives the end token a + %destructor. + + * tests/actions.at (Printers and Destructors): Test all the above. + +2006-07-24 Paul Eggert + + Update to latest gnulib and gettext versions. + * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer. + Add fopen-safer. + (gnulib_files): Add m4/warning.m4. Don't worry about files + overwritten by autopoint. + Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4. + Suppress "id", "ms", "tr" translations for now, since gettext 0.15 + rejects them. + Don't use autoreconf; instead, invoke autopoint etc. by hand, + so that we can remove the intl files at a better time. + (intl_files_to_remove): Remove aclocal.m4, since it gets + rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4, + m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4, + m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4. + Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4. + Remove datarootdir hack; no longer needed. + * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING. + (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15. + * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c, + strdup.h. + * m4/.cvsignore: Remove hard-locale.m4, strdup.m4. + * m4/warning.m4: Remove from CVS, since we now use gnulib's version. + +2006-07-20 Paul Eggert + + * bootstrap: Adjust to today's change to gnulib-tool by invoking + it with --assume-autoconf='latest-stable'. + +2006-07-13 Joel E. Denny + + * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at + least 1.4.7 and 1.4.4) by putting a #line between `typedef union + YYSTYPE' and `{'. + * src/muscle_tab.h (muscle_grow): Replace the header comments with + those from muscle_tab.c since the old ones are misleading. + +2006-07-13 Akim Demaille + + Support %define "KEY" {VALUE}. + * src/scan-code.h, src/scan-code.l (translate_action) + (translate_rule_action, translate_symbol_action, translate_code): + Return char *, not const char *. + * src/parse-gram.y (declaration): Rename as... + (prologue_declaration): this. + (string_content): Remove this nonterminal, use STRING. + (braceless, content, content.opt): New nonterminal. + Use them. + (%define): Now accept content.opt, i.e., accept also BRACED_CODE + as value. + * src/scan-gram.l (getargs.h): Don't include it. + +2006-07-12 Paul Eggert + + * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)' + rather than a for-loop that declares a local bool variable. This + should work around a compatibility problem with a Cray x1e C++ + compiler reported by Hung Nguyen in + . + The for-loop was introduced in the 2004-11-17 change but I don't + know why it was needed. + +2006-07-12 Akim Demaille + + * data/c.m4: Comment changes. + +2006-07-10 Akim Demaille + + * src/complain.c (error_message, ERROR_MESSAGE): New. + To factor... + (fatal_at, fatal, warn_at, warn, complain_at, complain): these. + * src/complain.h, src/complain.c (warning_issued): Remove, unused. + +2006-07-09 Paul Eggert + + * NEWS: Instead of %union, you can define and use your own union type + YYSTYPE if your grammar contains at least one tag. + Your YYSTYPE need not be a macro; it can be a typedef. + * doc/bison.texinfo (Value Type, Multiple Types, Location Type): + (Union Decl, Decl Summary): Document this. + * data/glr.c (YYSTYPE): Implement this. + * data/glr.cc (YYSTYPE): Likewise. + * data/lalr1.cc (YYSTYPE): Likewise. + * data/yacc.c (YYSTYPE): Likewise. + * src/output.c (prepare): Output tag_seen_flag. + * src/parse-gram.y (declaration, grammar_declaration): + Use 'union_seen' rather than 'typed' to determine whether + %union has been seen, since grammars can now be typed without + %union. + (symbol_declaration, type.opt, symbol_def): + Keep track of whether a tag has been seen. + * src/reader.c (union_seen, tag_seen): New vars. + (typed): remove. + * src/reader.h (union_seen, tag_seen, typed): Likewise. + * src/scan-code.l (untyped_var_seen): New variable. + (handle_action_dollar): Adjust to above changes. + (handle_action_dollar, handle_action_at): + Improve overflow checking for outlandish numbers. + * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to + avoid new diagnostics generated by above changes. + * tests/regression.at (YYSTYPE typedef): Add test to check + for type tags without %union. + + * src/symlist.c (symbol_list_length): Return int, not unsigned + int, since callers expect int. This may need to get revisited + once we have proper integer overflow checking. + + * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this + object is now static. + + * src/getargs.c (flags_argmatch): Return void, not int, + to pacify ./configure --enable-gcc-warnings. + + * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string) + since last_string is already defined to FLEX_PREFIX (last_string). + +2006-07-09 Akim Demaille + + Implement --warnings/-W. + * src/getargs.c (report_argmatch, trace_argmatch): Remove, + replaced by... + (flags_argmatch, FLAGS_ARGMATCH): this new function and macro. + Adjust callers. + * src/getargs.h, src/getargs.c (warnings, warnings_flags) + (warnings_args, warnings_types): New. + (getargs, short_options, long_options): Accept -W/--warnings. + Sort the options by alphabetical order, upper case letter right + before its lower case. + 2006-07-09 Joel E. Denny Change %merge result type clash warnings to errors. Discussed at @@ -4006,7 +4296,7 @@ * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings. -2004-10-28 Akim Demaille , +2004-11-17 Akim Demaille , Alexandre Duret-Lutz * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow