X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/d741bd1bfd186e7ce7f74377a01f5eeb206324e0..3922956abdb0ea20870750f8b62c168725bd9105:/ChangeLog?ds=sidebyside diff --git a/ChangeLog b/ChangeLog index d894b454..65d48d64 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,146 @@ +2005-07-18 Paul Eggert + + 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 + . + + * 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 . 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 + + * 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 + + 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 * data/glr.c (yyuserAction): Fix uninitialized variable that caused