+2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
+
+ Destructor cleanups and regularization among the three skeletons.
+ * NEWS: Document the behavior changes.
+ * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
+ stack before failing, as the cleanup code will do it for us now.
+ * data/lalr1.cc (yyerrlab): Likewise.
+ * data/glr.c (yyparse): Pop everything off the stack before
+ freeing it, so that destructors get called properly.
+ * data/lalr1.cc (yyreturn): Likewise.
+ * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
+ This is more consistent.
+ * doc/bison.texinfo (Destructor Decl): Mention more reasons
+ why destructors might be called. 1.875 -> 2.1.
+ (Destructor Decl, Decl Summary, Table of Symbols):
+ Some English-language cleanups for %destructor.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+ Add output line for destructor of start symbol.
+ * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
+ because of that same extra output line.
+
+ * NEWS: Document minor wording changes in diagnostics of
+ Bison-generated parsers.
+ * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
+ Remove unused formals. All uses changed.
+ (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
+ (yyparse): Rename yyoverflowlab to yyexhaustedlab.
+ * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
+ Rename yyoverflowab to yyexhaustedlab.
+ When memory exhaustion occurs during syntax-error reporting,
+ report it separately rather than in a single diagnostic; this
+ eases translation.
+ * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
+ (Memory Exhausted): Renamed from Parser Stack Overflow.
+ Revamp wording slightly to prefer "memory exhaustion".
+ * tests/actions.at: "parser stack overflow" -> "memory exhausted".
+
+ * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
+
+ Add i18n support to the GLR skeleton. Partially fix the C++
+ skeleton; a C++ expert needs to finish this. Remove debugging
+ msgids; there's little point to having them translated, since they
+ can be understood only by someone who can read the
+ (English-language) source code.
+
+ Generate runtime-po/bison-runtime.pot automatically, so that we
+ don't have to worry about garbage getting in that file. We'll
+ make sure after the next official release that old msgids don't
+ get lost. See
+ <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
+
+ * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
+ Now auto-generated.
+ * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
+ Fix typos in explanations of the runtime file.
+ * bootstrap: Change gettext keyword from YYI18N to YY_.
+ Use standard Makefile.in.in in runtime-po, since we'll arrange
+ for backward-compatible bison-runtime.po files in a different way.
+ * data/glr.c (YY_): New macro, from yacc.c.
+ (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
+ Translate messages intended for users.
+ (yyreportSyntaxError): Change "virtual memory" to "memory" to match
+ the wording in the other skeletons. We don't know that the memory
+ is virtual.
+ * data/lalr1.cc (YY_): Renamed from _. All uses changed.
+ Use same method that yacc.c uses.
+ Don't translate debugging messages.
+ (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
+ it doesn't work (yet), and requires C++ expertise to fix.
+ * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
+ Move defn to a more logical place, to be consistent with other
+ skeletons.
+ Don't translate debugging messages.
+ Don't assume line numbers fit in unsigned int; use unsigned long fmts.
+ * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
+ to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
+ * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
+
+ Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
+ void, not int.
+ * tests/glr-regression.at (Badly Collapsed GLR States):
+ Likewise.
+ (Improper handling of embedded actions and dollar(-N) in GLR parsers):
+ yylex should return 0 at EOF rather than aborting.
+
+ Improve tests for stack overflow in GLR parser.
+ Problem reported by twlevo@xs4all.nl.
+ * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
+ All uses removed.
+ (yyStackOverflow): Just longjmp, but with value 2 so that caller
+ can handle the problem.
+ (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
+ (yyparse): New local variable yyresult to record the result.
+ Use result of setjmp to set it, rather than storing itinto
+ struct.
+ (yyDone): Remove label.
+ (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
+ to mimic yacc.c. Do not discard lookahead if it's EOF (possible
+ if YYABORT is used).
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
+ yyparse status; put status > 1 into diagnostic.
+ Check that status==2 works.
+ * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
+ Use exit status 3 for failure to open (which shouldn't happen).
+
+2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/conflicts.at (%nonassoc and eof): Don't exit with status
+ 1 on syntax error; just let yyparse do its thing.
+ * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
+ * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
+ (Exploding the Stack Size with Alloca):
+ (Exploding the Stack Size with Malloc):
+ Expect exit status 2, not 1, since the parser is supposed to blow
+ its stack. Problem reported by twlevo@xs4all.nl.
+
+ * data/glr.c (yyparse): Don't assume that the initial calls
+ to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
+ Print a stack-overflow message and fail instead.
+ Initialize the line-number information before creating the stack,
+ so that the stack-overflow message can report line zero safely.
+
+2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix problems reported by twlevo@xs4all.nl.
+ * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
+ (yyuserMerge): Provide a default case if b4_mergers is empty.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
+ * tests/glr-regression.at
+ (Improper handling of embedded actions and dollar(-N) in GLR parsers):
+ Add casts to pacify C++ compilers.
+ * tests/glr-regression.at (Improper merging of GLR delayed action
+ sets): Declare yylex before using it.
+ * tests/Makefile.am (maintainer-check-g++): Fix a stray
+ $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
+ test for valgrind; valgrind is independent of g++.
+ (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
+ for compatibility with POSIX 1003.1-2001 (if running coreutils).
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
+ Use a destructor, so that we can expand the stack. Change
+ YYSTYPE to char * so that we can free it. Cast result of malloc.
+
+2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
+
+ * data/glr.c (yyuserAction): Fix uninitialized variable that caused
+ a valgrind failure. Problem reported by twlevo@xs4all.nl.
+
+2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * PACKAGING: New file, suggested by Bruno Haible and taken from
+ similar wording in gettext's PACKAGING file.
+ * NEWS: Mention PACKAGING.
+ * Makefile.am (EXTRA_DIST): Add PACKAGING.
+
+2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Document recent i18n improvements.
+ * bootstrap: Get runtime translations into runtime-po.
+ Create runtime-po files automatically, if possible.
+ * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
+ * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
+ does not infringe on the user's name space.
+ (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
+ * doc/bison.texinfo (Internationalization): Revamp the English
+ and Texinfo syntax a bit, to try to make it clearer.
+ (Bison Options, Option Cross Key): Mention --print-localedir.
+ * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
+ YYENABLE_NLS. Quote a bit more.
+ * runtime-po/.cvsignore: New file.
+ * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
+ * runtime-po/Rules-quot: Remove; now created by bootstrap.
+ * runtime-po/quot.sed: Likewise.
+ * runtime-po/boldquot.sed: Likewise.
+ * runtime-po/en@quot.header: Likewise.
+ * runtime-po/en@boldquot.header: Likewise.
+ * runtime-po/insert-header.sin: Likewise.
+ * runtime-po/remove-potcdate.sin: Likewise.
+ * runtime-po/Makevars: Likewise.
+ * runtime-po/LINGUAS: Likewise.
+ * runtime-po/de.po: Likewise; we will rely on the translation project
+ to maintain this, so "bootstrap" should get it.
+ * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
+ its value.
+ * src/main.c (main): Bind the bison-runtime domain, too.
+
+2005-07-12 Bruno Haible <bruno@clisp.org>
+
+ * data/yacc.c: Include <libintl.h> when NLS is enabled.
+ (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
+ * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
+ * runtime-po: New directory.
+ * runtime-po/Makefile.in.in: New file, copied from po/, with modified
+ $(DOMAIN).pot-update rule, so that old messages are never dropped.
+ * runtime-po/Rules-quot: New file, copied from po/.
+ * runtime-po/quot.sed: Likewise.
+ * runtime-po/boldquot.sed: Likewise.
+ * runtime-po/en@quot.header: Likewise.
+ * runtime-po/en@boldquot.header: Likewise.
+ * runtime-po/insert-header.sin: Likewise.
+ * runtime-po/remove-potcdate.sin: Likewise.
+ * runtime-po/Makevars: New file.
+ * runtime-po/POTFILES.in: New file.
+ * runtime-po/LINGUAS: New file.
+ * runtime-po/bison-runtime.pot: New file.
+ * runtime-po/de.po: New file.
+ * m4/bison.m4: New file.
+ * Makefile.am (SUBDIRS): Add runtime-po.
+ (aclocaldir, aclocal_DATA): New variables.
+ * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
+ Define aclocaldir.
+ * src/getargs.c (usage): Document --print-localedir option.
+ (PRINT_LOCALEDIR_OPTION): New enum item.
+ (long_options): Add --print-localedir option.
+ (getargs): Handle --print-localedir option.
+ * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
+ (Internationalization): New section.
+
+2005-07-12 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
+ for consistency with the rest of the code.
+ * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
+ Add separators.
+
+2005-07-12 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y: Use %printer instead of YYPRINT.
+
+2005-07-12 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * data/glr.c (b4_syncline): Fix (swap) the definitions of
+ b4_at_dollar and b4_dollar_dollar.
+
+2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
+ and Pennello's paper.
+
+2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ * 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 <eggert@cs.ucla.edu>
+
+ * 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 <akim@epita.fr>
+
+ 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 <eggert@cs.ucla.edu>
+
+ * 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 <stdio.h> 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 <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
+ class typedefs.
+
+2005-06-22 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (C++ Language Interface): First stab.
+ (C++ Parsers): Remove.
+
+2005-06-22 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (yylex_): Honor %lex-param.
+
+2005-06-22 Akim Demaille <akim@epita.fr>
+
+ 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 <eggert@cs.ucla.edu>
+
+ * 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 <hilfingr@tully.CS.Berkeley.EDU>
+
+ * 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 <eggert@cs.ucla.edu>
+
+ Fix infringement on user name space reported by Janos Zoltan Szabo.
+ * data/yacc.c (yyparse): strlen -> yystrlen.
+
+2005-05-30 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (_): New.
+ Translate the various messages.
+
2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
Fix infringement on user name space reported by Bruno Haible.
* 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.
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