X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/48814dcd46a97ffedac5a12983c5986d28e4ac75..867a3e0085abd0281d41a7a1a56dea143dadf4eb:/ChangeLog diff --git a/ChangeLog b/ChangeLog index fabd1fd2..e8c2016a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,831 @@ +2005-07-12 Akim Demaille + + * src/symtab.h, src/symtab.c (symbol_print): New. + * src/symlist.h, src/symlist.c (symbol_list_print): New. + * src/symlist.c (symbol_list_n_type_name_get): Report the culprit. + +2005-07-12 Akim Demaille + + * data/glr.c (b4_syncline): Fix (swap) the definitions of + b4_at_dollar and b4_dollar_dollar. + +2005-07-11 Paul Eggert + + * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer + and Pennello's paper. + +2005-07-09 Paul Eggert + + * data/yacc.c (yyparse): Undo previous patch. Instead, + set yylsp[0] and yyvsp[0] only if the initial action + sets yylloc and yylval, respectively. + + * data/yacc.c (yyparse): In the initial action, set + yylsp[0] and yyvsp[0] rather than yylloc and yylval. + This avoids the use of undefined variables if the initial + action does not set yylloc and/or yylval. + +2005-07-07 Paul Eggert + + * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh: + * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc: + Remove from CVS. These files are automatically generated. + * examples/extexi: Clarify that this file is now part of Bison, + not GNU M4, and that it works with any POSIX-compatible Awk. + * examples/calc++/Makefile.am (run_extexi): Remove; not used. + ($(calc_extracted)): Renamed from $(calc_sources_extracted), + so that we also get calc++-parser.yy. Geneate it. + Use $(AWK), not gawk, since any conforming Awk will do. + Put comment before action, since older 'make' can't handle comment + in action. + $(BUILT_SOURCES): List all built sources, not just some of them. + $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources. + $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT. + $($(calc_sources_generated)): Remove unnecessary test for existence + of target. (This had a shell syntax error anyway; a stray "x".) + (calc_extracted): List $(srcdir)/calc++-parser.yy, not + calc++-parser.yy. + * examples/.cvsignore, examples/calc++/.cvsignore: New files. + + * bootstrap (gnulib_modules): Add gettext, now that it's no longer + implied by the other modules. + +2005-07-06 Akim Demaille + + Bind examples/calc++ to the package. + * examples/calc++/Makefile: Remove, replaced by... + * examples/calc++/Makefile.am: ... this new file. + * examples/calc++/test: Remove input. + * examples/calc++/compile: Remove. + * examples/Makefile.am: New. + * configure.ac, Makefile.am: Adjust. + * doc/Makefile.am (clean-local): New, for more recent texi2dvis. + +2005-07-05 Paul Eggert + + * data/glr.c (yyFail): Drastically simplify; since the format argument + never had any % directives, we can simply pass it to yyerror. + (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will + be modified later, as that is the usual style in glr.c. + Problems reported by Paul Hilfinger. + + Rewrite GLR parser to catch more buffer overrun, storage exhaustion, + and size overflow errors. + * data/glr.c: Include etc. after user prolog, not before, + in case the user prolog sets feature-test macros like _GNU_SOURCE. + (YYSIZEMAX): New macro. + (yystpcpy): New function, taken from yacc.c. + (struct yyGLRStack.yyspaceLeft): Now size_t, not int. + (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls, + so that we don't have to maintain their signatures. + (yyFail): Check for buffer overflow, by using vsnprintf rather + than vsprintf. Allocate a bigger buffer if possible. + Report an error if buffer allocation fails. + (yyStackOverflow): New function. + (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether + the initialization was successful. It might fail if storage was + exhausted. + (yyexpandGLRStack): Add more checks for storage allocation failure. + Use yyStackOverflow to report failures. + (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction): + (yysplitStack, yyprocessOneStack, yyparse, yypstack): + Don't assume stack number fits in int. + (yysplitStack): Check for storage allocation failure. + (yysplitStack, yyprocessOneStack): Add pure_formals, so that we + can print diagnostics on storage allocation failure. All callers + changed. + (yyresolveValue): Use yybool for boolean. + (yyreportSyntaxError): Check for size-calculation overflow. + This code is taken from yacc.c. + (yyparse): Check for storage allocation errors when allocating + the initial stack. + +2005-07-05 Akim Demaille + + Extract calc++ from the documentation. + * doc/bison.texinfo (Calc++): Add the extraction marks. + * examples/extexi: New, from the aborted GNU Programming 2E. + Separate the different paragraph of a file with empty lines. + * examples/Makefile: Use it to extract the whole calc++ example. + +2005-06-24 Akim Demaille + + * doc/bison.texinfo (C++ Parser Interface): Use defcv to define + class typedefs. + +2005-06-22 Akim Demaille + + * doc/bison.texinfo (C++ Language Interface): First stab. + (C++ Parsers): Remove. + +2005-06-22 Akim Demaille + + * data/lalr1.cc (yylex_): Honor %lex-param. + +2005-06-22 Akim Demaille + + Start a set of simple examples. + * examples/calc++/Makefile, examples/calc++/calc++-driver.cc, + * examples/calc++/calc++-driver.hh, + * examples/calc++/calc++-parser.yy, + * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc, + * examples/calc++/compile, examples/calc++/test: New. + +2005-06-09 Paul Eggert + + * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside + extern "C" {}. This fixes a problem reported by Paul Hilfinger, + which stems from the 2005-05-27 patch. + +2005-06-06 Paul Hilfinger + + * data/glr.c: Modify treatment of unused parameters to permit use + of g++ (which doesn't allow __attribute__ ((unused)) for parameters). + +2005-05-30 Paul Eggert + + Fix infringement on user name space reported by Janos Zoltan Szabo. + * data/yacc.c (yyparse): strlen -> yystrlen. + +2005-05-30 Akim Demaille + + * data/lalr1.cc (_): New. + Translate the various messages. + +2005-05-27 Paul Eggert + + Fix infringement on user name space reported by Bruno Haible. + * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it. + Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on + the user's name space. + (alloca): Include to get it, if it's not built in. + (YYMALLOC, YYFREE): Define only if needed. + (malloc, free): Declare, but only if needed, as this infringes on + the user name space. + +2005-05-25 Paul Eggert + + Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible. + * lib/bitset.c (bitset_print): Don't assume size_t can be printed + with %d format. + * lib/ebitset.c (min, max): Undef before defining. + * lib/vbitset.c (min, max): Likewise. + * lib/subpipe.c (create_subpipe): Save local variables in case + vfork clobbers them. + +2005-05-24 Bruno Haible + + * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the + error message syntax used by gcc-4.0. + +2005-05-23 Paul Eggert + + * README: Mention m4 1.4.3. Remove obsolete advice about + Sun Forte Developer 6 update 2, VMS, and MS-DOS. + + * bootstrap: Remove workaround for problem I encountered with + gettext 0.14.1; it seems to be fixed now. + +2005-05-22 Paul Eggert + + * NEWS: Version 2.0a. + + * src/files.c: Include "stdio-safer.h"; this fixes a typo in + the previous change. + + Various maintainer cleanups. + * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*, + conftest*, for benefit of CVS commands run at the same time as + "configure". Add build-aux, since "bootstrap" now creates it and + its subfiles. + * Makefile.cfg (move_if_change): Remove. + * Makefile.maint: Remove the update stuff; we now use "bootstrap". + (ftp-gnu, www-gnu, move_if_change, local_updates, update): + (po_repo, do-po-update, po-update, wget_files, get-targets): + (config.guess-url_prefix, config.sub-url_prefix): + (ansi2knr.c-url_prefix, texinfo.tex-url_prefix): + (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url): + ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update): + Remove. + * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux; + this is now the recommended name. + * config/.cvsignore: Remove config.guess, config.rpath, config.sub, + depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex, + ylwrap. These files now go into build-aux. + * config/move-if-change: Remove. + * config/prev-version.txt: Bump from 1.75 to 2.0. + + * bootstrap: Add stdio-safer, unistd-safer modules. + Remove m4/glibc2.m4 (introduced by latest gnulib, but + we don't need it). + * lib/.cvsignore: Add dup-safer.c, fd-safer.c, + fopen-safer.c, stdio-safer.h, unistd-safer.h. + * lib/subpipe.c: Include "unistd-safer.h". + (create_subpipe): Make sure all the newly-created + file descriptors are > 2, so that diagnostics don't + get sent down them (which might cause Bison to hang, in theory). + * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4. + * src/files.c (xfopen): Use fopen_safer, not fopen. + + * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port + yesterday's yacc.c fix. + +2005-05-21 Paul Eggert + + * data/glr.c, data/lalr1.cc: Update copyright date. + + Fix a destructor bug reported by Wolfgang Spraul in + . + * data/yacc.c (yyabortlab): Don't call destructor, and + don't set yychar to EMPTY. + (yyoverflowlab): Don't call destructor. + (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY. + * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines, + since we no longer output the message "discarding lookahead token + end of input ()". + +2005-05-20 Paul Hilfinger + + * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to + fix a small glitch in debugging output. + (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline + after YY_SYMBOL_PRINT where needed. + + (struct yyGLRState): Add some comments. + (struct yySemanticOption): Add some comments. + (union yyGLRStackItem): Add comment. + + (yymergeOptionSets): Correct this to properly perform the union, + avoiding infinite reported by Michael Rosien. + Update comment. + + * tests/glr-regression.at: Add test for GLR merging error reported + by M. Rosien. + +2005-05-13 Paul Eggert + + * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am, + Makefile.cfg, Makefile.maint, NEWS, README, README-alpha, + README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am, + data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c, + data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo, + doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am, + lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c, + lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h, + lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c, + lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c, + lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h, + lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c, + lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h, + lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4, + m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c, + src/assoc.h, src/closure.c, src/closure.h, src/complain.c, + src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c, + src/derives.h, src/files.c, src/files.h, src/getargs.c, + src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h, + src/location.c, src/location.h, src/main.c, src/muscle_tab.c, + src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c, + src/output.h, src/parse-gram.c, src/parse-gram.h, + src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c, + src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c, + src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l, + src/scan-skel.l, src/state.c, src/state.h, src/symlist.c, + src/symlist.h, src/symtab.c, src/symtab.h, src/system.h, + src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h, + src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am, + tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at, + tests/cxx-type.at, tests/existing.at, tests/glr-regression.at, + tests/headers.at, tests/input.at, tests/local.at, tests/output.at, + tests/reduce.at, tests/regression.at, tests/sets.at, + tests/synclines.at, tests/testsuite.at, tests/torture.at: + Update FSF postal mail address. + +2005-05-11 Paul Eggert + + * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does. + Problem reported by Ralf Menzel. + +2005-05-01 Paul Eggert + + * tests/actions.at: Test that stack overflow invokes destructors. + From Marcus Holland-Moritz. + * data/yacc.c (yyerrlab): Move the code that destroys the stack + from here.... + (yyreturn): to here. That way, destructors are called properly + even if the stack overflows, or the user calls YYACCEPT or + YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz. + (yyoverflowlab): Destroy the lookahead. + +2005-04-24 Paul Eggert + + * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment. + +2005-04-17 Paul Eggert + + * NEWS: Bison-generated C parsers no longer quote literal strings + associated with tokens. + * src/output.c (prepare_symbols): Don't escape strings, + since users don't want to see C escapes. + * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes + in diagnostics. + * tests/input.at (Torturing the Scanner): Likewise. + * tests/regression.at (Token definitions, Web2c Actions): Likewise. + +2005-04-16 Paul Eggert + + * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if + the data size is known to be too small and we can't increase it. + This works around an HP-UX 11.00 glitch reported by Andrew Benham. + +2005-04-15 Paul Eggert + + * src/parse-gram.y: Include quotearg.h. + (string_as_id): Quote $1 before using it as a key, since the + lexer no longer quotes it for us. + (string_content): Don't strip quotes, since lexer no longer + quotes it for us. + * src/scan-gram.l: Include quotearg.h. + ("\""): Omit quote. + ("'"): Quote symbol before using it as + a key, since the rest of the lexer doesn't quote it. + * src/symtab.c (symbol_get): Don't quote symbol; caller does it now. + * tests/regression.at (Token definitions): Check for backslashes + in token strings. + + * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro. + (YYSIZE_T): Define to unsigned long int when using an older compiler. + (yyparse): Revamp code to generate long syntax error message, to + make it easier to translate, and to avoid problems with arithmetic + overflow. Change "virtual memory" to "memory" in diagnostic, since + we don't know whether the memory is virtual. + +2005-04-13 Paul Eggert + + * NEWS: Bison-generated C parsers now use the _ macro to + translate strings. + * data/yacc.c (_) [!defined _]: New macro. + All English strings wrapped inside this macro. + * doc/bison.texinfo (Bison Parser): Document _. + * po/POTFILES.in: Include src/parse-gram.c, since it now + includes translateable strings that parse-gram.y doesn't. + +2005-04-12 Paul Eggert + + * src/symtab.c (symbol_make_alias): Call symbol_type_set, + reverting the 2004-10-11 change to this function. + (symbol_check_alias_consistency): Don't call symbol_type_set + if the type name is already correct. + * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder. + +2005-03-25 Paul Eggert + + * tests/regression.at (Token definitions): Don't use a token named + c, as that generates a "#define c ..." that runs afoul of buggy + stdlib.h that uses the identifier c as a member of struct + drand48_data. Problem reported by Horst Wente. + +2005-03-21 Paul Eggert + + * bootstrap: Change translation URL from + http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to + http://www.iro.umontreal.ca/translation/maint/bison/ to avoid + redirection glitches. Problem reported by twlevo@xs4all.nl. + +2005-03-20 Paul Eggert + + * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options + after operands; POSIX says this isn't portable for the c99 command. + +2005-03-18 Paul Eggert + + * tests/glr-regression.at (glr-regr2a.y): Try to dump core + immediately if a data overrun has occurred; this may help us track + down what may be a spurious failure on MacOS. + +2005-03-17 Paul Eggert + + Respond to problems reported by twlevo@xs4all.nl. + + * bootstrap: Use "trap - 0" rather than the unportable "trap 0". + + * src/vcg.h: Comment fix. + * src/vcg_defaults.h: Parenthesize macro bodies to make them safe. + (G_CMAX): Change to -1 instead of INT_MAX. + + * data/yacc.c (yyparse): Omit spaces before #line. + +2005-03-15 Paul Eggert + + * src/tables.c (state_number_to_vector_number): Put it inside an + "#if 0", since it's not currently used. Problem reported by + Roland McGrath. + +2005-03-06 Paul Eggert + + * src/output.c (escaped_output): Renamed from + escaped_file_name_output, since we now use it for symbol tags as + well. All uses changed. + (symbol_destructors_output, symbol_printers_output): + Escape symbol tags too. + Problem reported by Matyas Forstner in + . + + * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's + not needed. + * src/output.c (user_actions_output, token_definitions_output, + symbol_destructors_output, symbol_printers_output): Likewise. + * src/reader.c (prologue_augment): Likewise. + * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise. + + * src/vcg.c (output_edge): Don't quote linestyle arg. + Problem reported by twlevo@xs4all.nl. + +2005-02-28 Paul Eggert + + * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in + example, reported by Derek M Jones. Also, make the example even + more outrageous, to better illustrate how bad the problem is. + +2005-02-24 Paul Eggert + + * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for + putsym. Typo reported by Sebastian Piping. + +2005-02-23 Paul Eggert + + * doc/bison.texinfo (Language and Grammar): some -> same + (Epilogue): int he -> in the + Typos reported by Sebastian Piping via Justin Pence. + +2005-02-07 Paul Eggert + + * tests/glr-regression.at (Improper handling of embedded actions + and dollar(-N) in GLR parsers): Renamed from "Improper handling of + embedded actions and $-N in GLR parsers", work around an Autoconf bug + with dollar signs in test names. + * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n", + for a similar reason. + +2005-01-28 Paul Eggert + + * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone + wants to redefine G_VIEW. + +2005-01-27 Paul Eggert + + * src/vcg.c (get_view_str): Remove case for normal_view. + Problem reported by twlevo@xs4all.nl. + +2005-01-24 Paul Eggert + + * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug. + Problem reported by twlevo@xs4all.nl. + + * doc/bison.texinfo: Change @dircategory from "GNU programming + tools" to "Software development". Requested by Richard Stallman + via Karl Berry. + +2005-01-23 Paul Eggert + + * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands. + Problem reported by twlevo@xs4all.nl. + +2005-01-21 Paul Eggert + + * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register" + keyword; it's not needed with modern compilers, and it doesn't + affect correctness with older compilers. Suggested by + twlevo@xs4all.nl. + +2005-01-17 Paul Eggert + + * data/glr.c (yyuserAction): Add "default: break;" case to pacify + gcc -Wswitch-default. + * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise. + * data/yacc.c (yyparse): Likewise. + +2005-01-12 Paul Eggert + + * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined + already. Let config.h define any nonstandard values. + +2005-01-10 Paul Eggert + + * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10), + for the benefit of slower hosts. Problem reported by + Nelson H. F. Beebe. + +2005-01-07 Paul Eggert + + * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab + being defined and not used. + * data/lalr1.cc (yyparse): Likewise. + Use "if (false)" rather than "if (0)". + +2005-01-05 Paul Eggert + + * TODO: Mention that we should allow NUL bytes in tokens. + +2005-01-02 Paul Eggert + + * src/scan-skel.l (<>): Don't close standard output. + Problem reported by Hans Aberg. + +2005-01-01 Paul Eggert + + * src/getargs.c (version): Happy new year; update overall + program copyright date from 2004 to 2005. + + * src/scan-skel.l ("@output ".*\n): Don't close standard output. + Problem reported by Hans Aberg. + * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO. + (Output file names.): Add a test for the case when standard output + is closed. + +2004-12-26 Paul Eggert + + * doc/bison.texinfo (@copying): Update FDL version number to 1.2, + to fix an oversight in the Bison 2.0 manual. + +2004-12-25 Paul Eggert + + * NEWS: Version 2.0. Reformat the existing news items since + 1.875, so that related items are grouped together. + * configure.ac (AC_INIT): Bump version to 2.0. + * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0. + + * tests/torture.at (Exploding the Stack Size with Alloca): Set + YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined; + otherwise, we're not testing alloca. Unfortunately there's no + simple way to consult HAVE_ALLOCA here. + + * data/lalr1.cc (yydestruct_): Pacify unused variable warning + for yymsg, too. + + * src/LR0.c (new_itemsets): Use memset rather than zeroing by + hand. This avoids a warning about comparing int to size_t when + GCC warnings are enabled. + +2004-12-22 Paul Eggert + + * NEWS: Bison-generated parsers no longer default to using the + alloca function (when available) to extend the parser stack, due + to widespread problems in unchecked stack-overflow detection. + * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's + responsibility to set it to a positive value. This lets the user + specify a value that is not a preprocessor constant. + * data/yacc.c (YYMAXDEPTH): Likewise. + (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero. + * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs + to be a compile-time constant. However, explain the constraints on it. + Also, explain the constraints on YYINITDEPTH. + (Table of Symbols): Explain that alloca is no longer the default. + Explain the user's responsibility if they define YYSTACK_USE_ALLOCA + to 1. + + * doc/bison.texinfo (Location Default Action): Mention that n must + be zero when k is zero. Suggested by Frank Heckenbach. + +2004-12-22 Akim Demaille + + * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type) + (parser::state_type, parser::semantic_type, parser::location_type): + Private, not public. + (parser::parse): Return ints, not bool. + Returning a bool introduces a problem: 0 corresponds to false, and + it seems weird to return false on success. Returning true changes + the conventions for yyparse. + Alternatively we could return void and send an exception. + There is no clear consensus (yet?). + (state_stack, semantic_stack, location_stack): Rename as... + (state_stack_type, semantic_stack_type, location_stack_type): these. + Private, not public. + * tests/c++.at: New. + * tests/testsuite.at, tests/Makefile.am: Adjust. + +2004-12-21 Akim Demaille + + * data/lalr1.cc (parser::parse): Return a bool instead of an int. + +2004-12-21 Akim Demaille + + Don't impose std::string for filenames. + + * data/lalr1.cc (b4_filename_type): New. + (position::filename): Use it. + (parser.hh): Move the inclusion of stack.hh and location.hh below + the user code, so that needed headers for the filename type can be + included first. + Forward declare them before the user code. + * tests/Makefile.am (check-local, installcheck-local): Pass + TESTSUITEFLAGS to the TESTSUITE. + +2004-12-20 Akim Demaille + + Use more STL like names: my_class instead of MyClass. + + * data/lalr1.cc (LocationStack, LocationType, RhsNumberType) + (SemanticStack, SemanticType, StateStack, StateType) + (TokenNumberType, Stack, Slice, Traits, Parser::location) + (Parser::value): Rename as... + (location_stack, location_type, rhs_number_type, semantic_stack) + (semantic_type, state_stack, state_type, token_number_type, stack) + (slice, traits, parser::yylloc, parser::yylval): these. + + * tests/calc.at, tests/regression.at, tests/actions.at: Adjust. + +2004-12-19 Paul Eggert + + * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions. + * data/yacc.c (YYLLOC_DEFAULT): Likewise. + +2004-12-17 Paul Eggert + + Remove uses of 'short int' and 'unsigned short int'. This raises + some arbitrary limits. It uses more memory but nowadays that's + not much of an issue. + + This change does not affect the generated parsers; that's a different + task, as some users will want to conserve memory there. + + Ideally we should use size_t to represent all object counts, and + something like ptrdiff_t to represent signed differences of object + counts; but that will require more code-cleanup than I have the + time to do right now. + + * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions): + Use size_t, not int or short int, to count objects. + * src/closure.c (nritemset, closure): Likewise. + * src/closure.h (nritemset, closure): Likewise. + * src/nullable.c (nullable_compute): Likewise. + * src/print.c (print_core): Likewise. + * src/print_graph.c (print_core): Likewise. + * src/state.c (state_compare, state_hash): Likewise. + * src/state.h (struct state): Likewise. + * src/tables.c (default_goto, goto_actions): Likewise. + + * src/gram.h (rule_number, rule): Use int, not short int. + * src/output.c (prepare_rules): Likewise. + * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions, + errs, reductions): Likewise. + * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol): + Likewise. + * src/tables.c (vector_number, tally, action_number, + ACTION_NUMBER_MINIMUM): Likewise. + * src/output.c (muscle_insert_short_int_table): Remove. + +2004-12-17 Akim Demaille + + * data/lalr1.cc: Extensive Doxygenation. + (error_): Rename as... + (error): this, since it is visible to the user. + Adjust callers. + (Parser::message): Now an automatic variable from... + (Parser::yyreport_syntax_error_): here. + * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to + Parser::error. + * tests/input.at: Escape $. + +2004-12-16 Paul Eggert + + * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location): + Parenthesize rhs to avoid obscure problems with mistakes like + "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all. + * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location, + b4_rhs_location): Likewise. + * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location, + b4_rhs_location): Likewise. + +2004-12-16 Akim Demaille + + * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and + yacc.c: be sure to stay within yycheck_. + * tests/actions.at: Re-enable C++ tests. + +2004-12-16 Akim Demaille + + * src/print_graph.c (print_graph): Remove layoutalgorithm uses for + real. + +2004-12-16 Akim Demaille + + Use #define to handle the %name-prefix. + + * data/glr.c, data/yacc.c: Comment changes. + * data/lalr1.cc (yylex): Use #define to select the name of yylex, + so that one can refer to yylex in the parser file, and have it + renamed, as is the case with other skeletons. + +2004-12-16 Akim Demaille + + Move lalr1.cc internals into yy*. + + * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_) + (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_) + (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_) + (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_) + (empty_, final_, terror_, errcode_, ntokens_) + (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_) + (looka_, ilooka_, error_range_, nerrs_): + Rename as... + (yysemantic_stack_, yylocation_stack_, yystate_stack_) + (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_) + (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_) + (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_) + (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_) + (yyfinal_, yyterror_, yyerrcode_, yyntokens_) + (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_) + (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_): + these. + +2004-12-15 Paul Eggert + + Fix some problems reported by twlevo at xs4all. + * src/symtab.c (symbol_new): Report an error if the input grammar + contains too many symbols. This is better than calling abort() later. + * src/vcg.h (enum layoutalgorithm): Remove. All uses removed. + (struct node, struct graph): + Rename member expand to stretch. All uses changed. + (struct graph): Remove member layoutalgorithm. All uses removed. + * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed. + * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND. + All uses changed. + (N_STRETCH): Rename from N_EXPAND. All uses changed. + +2004-12-15 Akim Demaille + + * data/lalr1.cc: Normalize /** \brief ... */ to ///. + Add more Doxygen comments. + (symprint_, stack_print_, reduce_print_, destruct_, pop) + (report_syntax_error_, translate_): Rename as... + (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_) + (yypop_, yyreport_syntax_error_, yytranslate_): this. + +2004-12-15 Akim Demaille + + * data/lalr1.cc (lex_): Rename as... + (yylex_): this. + Move the trace here. + Take the %name-prefix into account. + Reported by Alexandre Duret-Lutz. + +2004-12-15 Akim Demaille + + Simplify the C++ parser constructor. + + * data/lalr1.cc (debug_): Rename as... + (yydebug_): so that the parser's internals are always in the yy* + pseudo namespace. + Adjust uses. + (b4_parse_param_decl): Remove the leading comma as it is now only + called as unique argument list. + (Parser::Parser): Remove the constructor accepting a location and + an initial debugging level. + Remove from the other ctor the argument for the debugging level. + (debug_level_type, debug_level, set_debug_level): New. + + * tests/actions.at, tests/calc.at, tests/regression.at: Adjust + constructor calls. + +2004-12-15 Akim Demaille + + Remove b4_root related material: failure experiment + (which goal was to allow to derive from a class). + + * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove + definitions and uses. + +2004-12-14 Paul Eggert + + * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items, + not 2, since it's not portable to subtract 1 from the start of an + array. The new item 0 is never set or used. All uses changed. + + (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming + the default definition of YYLLOC_DEFAULT. Problem reported + by Frank Heckenbach. + +2004-12-12 Paul Eggert + + * data/glr.c (YYRHSLOC): Don't have two definitions, one for + the normal case and one for the error case. Just use the + first one uniformly. Problem reported by Frank Heckenbach. + (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can + use exactly the same macro in both places. + (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE, + so that the normal-case YYRHSLOC works for the error case too. + All uses changed. + * data/yacc.c (YYRHSLOC): New macro, taken from glr.c. + (YYLLOC_DEFAULT): Use the same macro as glr.c. + * doc/bison.texinfo (Location Default Action): Don't claim that + we have an array of locations. Use the same macro for both glr + and lalr parsers. Mention YYRHSLOC. Mention what happens when + the index is 0. + 2004-12-10 Paul Eggert + * HACKING: Update email addresses to send announcements to. + * configure.ac (AC_INIT): Bump version to 1.875f. 2004-12-10 Paul Eggert @@ -6960,7 +7786,7 @@ * tests/atlocal.at (GCC): New. * tests/synclines.at (AT_TEST_SYNCLINE): New macro. - (Prologue synch line, ,%union synch line, Postprologue synch line) + (Prologue synch line, %union synch line, Postprologue synch line) (Action synch line, Epilogue synch line): New tests. * src/reader.c (parse_union_decl): Define the muscle stype_line. * data/bison.simple, data/bison.c++: Use it. @@ -12776,7 +13602,7 @@ ----- Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997, -1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. +1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -12792,5 +13618,5 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Bison; see the file COPYING. If not, write to -the Free Software Foundation, Inc., 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. +the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA.