X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/68f91d58f15abe21c65a8b4d7022ccb854c857dc..3cc83855d988a89d708c182aff917cac21d9c6f2:/ChangeLog-2012 diff --git a/ChangeLog-2012 b/ChangeLog-2012 index 6981c554..458a9e55 100644 --- a/ChangeLog-2012 +++ b/ChangeLog-2012 @@ -1,30 +1,32 @@ -2012-01-15 Jim Meyering +2012-01-15 Akim Demaille + + java: fix reduction traces. + * data/lalr1.java (yy_reduce_print): Fix state index. + Reported by Tim Landscheidt. + +2012-01-12 Jim Meyering + + build: avoid warning from coverity about lbitset_elt_find + * lib/lbitset.c (lbitset_elt_find): Remove unnecessary test of "elt", + at a point where we know it is non-NULL, due to prior dereference. + +2012-01-13 Jim Meyering maint: get fdl.texi from gnulib * bootstrap.conf (gnulib_modules): Add fdl. * doc/fdl.texi: Remove file. * doc/.gitignore: Add it here. -2012-01-15 Jim Meyering - maint: spell "file system" as two separate words * doc/Doxyfile.in: Spell it "file system", to avoid a "make syntax-check" failure. -2012-01-15 Jim Meyering - maint: avoid "the the" * djgpp/README.in: s/the the/the/ * src/parse-gram.c (lloc_default): Likewise. * src/parse-gram.y (lloc_default): Likewise, and remove a trailing space. -2012-01-13 Jim Meyering - - build: avoid warning from coverity about lbitset_elt_find - * lib/lbitset.c (lbitset_elt_find): Remove unnecessary test of "elt", - at a point where we know it is non-NULL, due to prior dereference. - 2012-01-13 Akim Demaille maint: factor copyright year. @@ -54,6 +56,12 @@ * lib/ebitset.c (ebitset_init): Likewise, for "size". * lib/lbitset.c (lbitset_not): Likewise, for "elt". +2011-08-21 Joel E. Denny + + lalr1.cc: remove trailing comma from enumerator list. + * data/lalr1.cc (yy::parser): Here. This suppresses a -pedantic + warning. + 2011-08-21 Joel E. Denny tests: add -pedantic for --enable-gcc-warnings. @@ -75,6 +83,22 @@ * tests/existing.at (GNU Cim Grammar) (GNU pic (Groff 1.18.1) Grammar.): Remove empty %union. +2011-07-24 Joel E. Denny + + global: remove unnecessary horizontal tabs. + This change was made by applying emacs' untabify function to + nearly all files in Bison's repository. Required tabs in make + files, ChangeLog, regexps, and test code were manually skipped. + Other notable exceptions and changes are listed below. + * bootstrap: Skip because we sync this with gnulib. + * data/m4sugar/foreach.m4 + * data/m4sugar/m4sugar.m4: Skip because we sync these with + Autoconf. + * djgpp: Skip because I don't know how to test djgpp properly, and + this code appears to be unmaintained anyway. + * README-hacking (Hacking): Specify that tabs should be avoided + where not required. + 2011-07-10 Joel E. Denny build: avoid YACC typo inherited from Autoconf. @@ -184,18 +208,6 @@ * tests/regression.at (Token number in precedence declaration): Extend. -2011-05-01 Joel E. Denny - - Prepare for 2.5 release. - * NEWS (2.5_rc1): Rename back to... - (2.5): ... this, and unset date. - -2011-05-01 Joel E. Denny - - Version 2.5_rc1. - * NEWS (2.5): Rename to... - (2.5_rc1): ... this, and set date. - 2011-05-01 Joel E. Denny Pacify -DGNULIB_POSIXCHECK. @@ -204,7 +216,7 @@ * src/files.c (file_name_split) * src/getargs.c (getargs) * src/location.c (boundary_set_from_string) - * src/output.c (token_definitions_output, output_skeleton) + * src/output.c (output_skeleton) * src/parse-gram.y (prologue_declaration) * src/scan-gram.l (handle_syncline) * src/symtab.c (symbol_new): Use mbschr and mbsrchr instead of @@ -356,12 +368,6 @@ * NEWS (2.5): Document fix for -Wno-CATEGORY. -2008-11-21 Di-an Jan - - Implement no-XXX arguments for --warnings, --report, --trace. - * src/getargs.c (flags_argmatch): Handles no-XXX. - Fix typo in doxygen comment. - 2011-03-20 Joel E. Denny doc: fix confusing citation of LAC publication. @@ -476,16 +482,17 @@ lr.keep-unreachable-states, lr.type, and parse.lac into brief summaries, and cross-reference the appropriate subsections of Tuning LR. For parse.lac, mention that it's only implemented for - deterministic parsers in C. - (Error Reporting): When mentioning %error-verbose, mention LAC, + deterministic parsers in C. In parse.error entry, mention LAC, and add cross-reference to the LAC section. + (Error Reporting): When mentioning parse.error, mention LAC, and + add cross-reference to the LAC section. (Tuning LR): New section with an extended version of the documentation removed from %define Summary. Change all cross-references in the manual to point here instead of there. - (Calc++ Parser): When mentioning %error-verbose, mention LAC, and - add cross-reference to the LAC section. - (Table of Symbols): In %error-verbose and YYERROR_VERBOSE entries, - add cross-references to Error Reporting. + (Calc++ Parser): When mentioning parse.error, mention LAC, and add + cross-reference to the LAC section. + (Table of Symbols): In %error-verbose entry, add cross-reference + to Error Reporting. (Glossary): Capitalize entry titles consistently. Add definitions for "defaulted state" and "unreachable state". Expand IELR acronym in IELR's entry. @@ -518,13 +525,14 @@ reversed access to location stack. * THANKS (Bernd Kiefer): Add. -2010-05-11 Akim Demaille +2011-02-13 Joel E. Denny - doc: please Emacs. - * doc/bison.texinfo (Local Variables): Move this after the - LocalWords, since the latter are looked for in the whole document, - while the former are looked for only at its end. - Require american spell checking. + doc: fix some minor inconsistencies. + * doc/bison.texinfo (%define Summary): Fix mislabeled entry for + lex_symbol. + (%code Summary): For consistency with the variable list in the + %define Summary, enclose the list of %code qualifiers in a table + instead of an itemize. 2011-02-06 Joel E. Denny @@ -809,7 +817,7 @@ is requested. * tests/conflicts.at (%nonassoc and eof): Extend to check the effect of each of -Dlr.type=canonical-lr and -Dparse.lac=full. - (%error-verbose and consistent errors): Likewise. + (parse.error=verbose and consistent errors): Likewise. (LAC: %nonassoc requires splitting canonical LR states): New test group demonstrating how LAC can fix canonical LR. * tests/input.at (LAC: Errors for %define): New test group. @@ -825,18 +833,6 @@ * bootstrap.conf (bootstrap_sync): Set to true. * gnulib: Update to latest so bootstrap is in sync now. -2010-11-07 Joel E. Denny - - yysyntax_error: adjust prior fixes for branch-2.5's lalr1.cc. - On master, there is no yychar in lalr1.cc, but there is on - branch-2.5, and the prior cherry-pick of "Fix handling of yychar - manipulation in user semantic actions" wasn't adjusted for that - difference. - * data/lalr1.cc (yy::parser::parse): Translate yychar before - every use of yytoken, and add comments explaining this approach. - * tests/conflicts.at (%error-verbose and consistent errors): - Extend to test yychar manipulation with lalr1.cc. - 2010-11-07 Joel E. Denny yysyntax_error: fix for consistent error with lookahead. @@ -854,14 +850,14 @@ * data/glr.c (yyreportSyntaxError): As in yacc.c, don't drop the unexpected token unless there actually is no lookahead. * data/lalr1.cc (yy::parser::parse): If there's no lookahead, - set yytoken to yyempty_ before invoking yysyntax_error_. + pass yyempty_ not yyla.type to yysyntax_error_. (yy::parser::yysyntax_error_): Again, don't drop the unexpected token unless there actually is no lookahead. * data/lalr1.java (YYParser::parse): If there's no lookahead, set yytoken to yyempty_ before invoking yysyntax_error. (YYParser::yysyntax_error): Again, don't drop the unexpected token unless there actually is no lookahead. - * tests/conflicts.at (%error-verbose and consistent + * tests/conflicts.at (parse.error=verbose and consistent errors): Extend test group to further reveal how the previous use of the simple "syntax error" message was too general. Test yacc.c, glr.c, lalr1.cc, and lalr1.java. No longer an expected @@ -879,7 +875,7 @@ There are no behavioral changes here. * data/glr.c (yyreportSyntaxError): Reorganize. * data/lalr1.cc (yy::parser::yysyntax_error_): Reorganize. - * tests/conflicts.at (%error-verbose and consistent errors): + * tests/conflicts.at (parse.error=verbose and consistent errors): Reorganize. 2010-11-07 Joel E. Denny @@ -892,6 +888,11 @@ * data/lalr1.java (YYParser::yysyntax_error): Reindent. * data/yacc.c (yysyntax_error): Reindent. +2010-10-31 Joel E. Denny + + Fix memory leak. + * src/output.c (prepare_rules): Free temporary array. + 2010-10-31 Joel E. Denny yysyntax_error: improve invocation readability. @@ -947,9 +948,32 @@ out of storage? If not, we can omit malloc-gnu; but for now I left it in to be safe. (vc_ignore): Remove. + (gnulib_mk_hook): New function. * README-hacking: Renamed from HACKING, since gnulib bootstrap now uses that convention. +2010-09-09 Paul Hilfinger + + * data/glr.c (yySymbol): Define as int to avoid compiler warnings about + possible change of value. + +2010-09-08 Paul Hilfinger + + * data/glr.c (yy_reduce_print): Change yyrhsVals to yyvsp to remove + compiler errors when using %debug. + Add declaration of yylow when locations in use to avoid compilation + error. + (yyglrReduce): Conditionalize message "Parse ... rejected by rule..." + on whether we are in split mode, for consistency with behavior of + non-GLR parsing. + +2010-09-01 Akim Demaille + + Address GCC warnings about shadowed local variables (yyflag). + * data/glr.c (YYCHK): Rename yyflag as yychk_flag. + (yyprocessOneStack): Reduce the scope of yyaction, yyconflicts, + yyrule, and yyflag. + 2010-08-05 Joel E. Denny Version 2.4.3. @@ -1004,6 +1028,14 @@ * po/POTFILES.in: Add remaining gnulib files that have translatable strings. +2010-07-25 Joel E. Denny + + build: fix our adjustments for gnulib files in lib. + * configure.ac: For prepending lib/ to the values of config + variables, fix detection of empty values. Also, due to recent + gnulib changes, add LIBUNISTRING_UNITYPES_H and + LIBUNISTRING_UNIWIDTH_H to the list of those variables. + 2010-07-25 Joel E. Denny maint: use announce-gen's new --mail-headers. @@ -1020,6 +1052,61 @@ (Output files: -dv >&-): Skip test group if running maintainer-check-valgrind. +2010-07-23 Paul Hilfinger + + * NEWS: Describe new semantic-predicate feature. + * data/c.m4 (b4_predicate_case): New definition. + * data/java.m4 (b4_predicate_case): New definition. + * data/glr.c (yyimmediate): Add definition. + (yydoAction): Remove comment, now obsolete. + Do YY_REDUCE_PRINT here. + (yyglrReduce): Alter comment to indicate that semantic values + need not be deferred. + Remove YY_REDUCE_PRINT from here; done in yydoAction. + (yyprocessOneStack): Pass immediate flag. + Delete stacks rejected by predicates in newly split-off parsers. + Change handling of yyerr so that only current stack gets deleted + when semantic predicate fails. + (yyfillin): Don't crash if a semantic value is unresolved (as may + happen in predicate rules). + Copy lr state as well in debugging mode. + Update comment on setting of yysval to include yyloc as well. + (yy_reduce_print): Add yynormal argument. Perform fillin properly. + Report unresolved RHS values. + (yyimmediate): New table. + * src/gram.h (struct rule): Add is_predicate field. + * src/output.c (user_actions_output): Use b4_predicate_case for + predicates. + (prepare_symbols): Output yyimmediate. + * src/scan-gram.l: Add %? token, SC_PREDICATE state. + * src/scan-code.l (code_props_rule_action_init): Add is_predicate + argument. + * src/scan-code.h (struct code_props): Add is_predicate field. + (code_props_rule_action_init): New interface. + * src/parse-gram.y (%?{...}): New token. + (rhs): Add %?{...} rule. + * src/parse-gram.c: Regenerate. + * src/parse-gram.h: Regenerate. + * src/reader.c (grammar_current_rule_action_append): Add + immediate argument. + (grammar_midrule_action): Use new interface for + code_props_rule_action_init. + (grammar_current_rule_action_append): Ditto. + (packgram): Transfer is_predicate value. + * src/reader.h (grammar_current_rule_action_append): New interface. + * doc/bison.texinfo: Document semantic predicates (%?). + + * data/glr.c (yylhsNonterm, yyisDefaultedState,yyDefaultAction) + (yygetLRActions,yynewGLRStackItem,yyaddDeferredAction,yyinitStateSet) + (yyinitGLRStack,yyexpandGLRStack,yyupdateSplit,yymarkStackDeleted) + (yyundeleteLastStack,yyglrShift,yyglrShiftDefer,yydoAction,yyglrReduce) + (yyidenticalOptions,yymergeOptionSets,yyresolveStates,yyresolveAction) + (yyresolveLocations,yyresolveValue,yyreducePrint): Update parameter + names in comments and mention all parameters. + (struct yyGLRState): Fix description of yyposn field. + (yyresolveLocations): Correct comment so as not to imply action when + yyn1==0. + 2010-06-17 Paul Eggert Update from GFDL GFDL 1.2 to 1.3. @@ -1027,8 +1114,6 @@ * doc/fdl.texi: Update to version 1.3, taken from: http://www.gnu.org/licenses/fdl.texi -2010-06-17 Paul Eggert - Do not use date ranges in copyright notices. See http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices @@ -1038,23 +1123,23 @@ * data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4: * data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc: * data/java-skel.m4, data/java.m4, data/lalr1.cc: - * data/lalr1.java, data/location.cc: - * data/xslt/bison.xsl: + * data/lalr1.java, data/local.mk, data/location.cc: + * data/stack.hh, data/variant.hh, data/xslt/bison.xsl: * data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl: * data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint: * djgpp/README.in, djgpp/config.bat, djgpp/config.sed: * djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat: - * djgpp/subpipe.c, djgpp/subpipe.h: - * djgpp/testsuite.sed, doc/bison.texinfo: - * doc/refcard.tex, etc/README, etc/bench.pl.in: + * djgpp/local.mk, djgpp/subpipe.c, djgpp/subpipe.h: + * djgpp/testsuite.sed, doc/bison.texinfo, doc/local.mk: + * doc/refcard.tex, etc/README, etc/bench.pl.in, etc/local.mk: * examples/calc++/Makefile.am, examples/extexi: - * lib/abitset.c, lib/abitset.h: + * examples/local.mk, 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/timevar.c: + * lib/libiberty.h, lib/local.mk, lib/main.c, lib/timevar.c: * lib/timevar.def, lib/timevar.h, lib/vbitset.c: * lib/vbitset.h, lib/yyerror.c, m4/bison-i18n.m4: * m4/c-working.m4, m4/cxx.m4, m4/subpipe.m4, m4/timevar.m4: @@ -1066,7 +1151,7 @@ * src/derives.c, src/derives.h, src/files.c, src/files.h: * src/flex-scanner.h, src/getargs.c, src/getargs.h: * src/gram.c, src/gram.h, src/graphviz.c, src/ielr.c: - * src/ielr.h, src/lalr.c, src/lalr.h: + * src/ielr.h, src/lalr.c, src/lalr.h, src/local.mk: * src/location.c, src/location.h, src/main.c: * src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c: * src/named-ref.h, src/nullable.c, src/nullable.h: @@ -1083,13 +1168,10 @@ * tests/calc.at, tests/conflicts.at, tests/cxx-type.at: * tests/existing.at, tests/glr-regression.at: * tests/headers.at, tests/input.at, tests/java.at: - * tests/local.at, tests/named-refs.at: + * tests/local.at, tests/local.mk, tests/named-refs.at: * tests/output.at, tests/push.at, tests/reduce.at: * tests/regression.at, tests/sets.at, tests/skeletons.at: * tests/synclines.at, tests/testsuite.at, tests/torture.at: - * data/Makefile.am, data/location.cc, doc/Makefile.am, src/Makefile.am: - * tests/Makefile.am, lib/Makefile.am, examples/Makefile.am: - * etc/Makefile.am: Don't use date ranges in copyright notices. 2010-05-11 Akim Demaille @@ -1100,7 +1182,24 @@ sections. * NEWS (2.5): Document this. -2010-05-07 Akim Demaille +2010-05-11 Akim Demaille + + doc: please Emacs. + * doc/bison.texinfo (Local Variables): Move this after the + LocalWords, since the latter are looked for in the whole document, + while the former are looked for only at its end. + Require american spell checking. + +2010-05-10 Akim Demaille + + doc: fix lalr1.cc documentation. + * doc/bison.texinfo (C++ Scanner Interface): Fix yylex signature. + (C++ Bison Interface): Fix lalr1.cc skeleton name. + (C++ Parser Interface): Fix semantic_type and location_type names. + Document yy::parser::token. + Reported by Jerry Quinn. + +2010-05-10 Akim Demaille c++: use YYRHSLOC. * data/lalr1.cc (YYRHSLOC): New. @@ -1111,28 +1210,45 @@ Check that glr.cc supports user defined location_type. * NEWS: Document this. -2010-05-10 Akim Demaille +2010-05-07 Akim Demaille - doc: fix lalr1.cc documentation. - * doc/bison.texinfo (C++ Scanner Interface): Fix yylex signature. - (C++ Bison Interface): Fix lalr1.cc skeleton name. - (C++ Parser Interface): Fix semantic_type and location_type names. - Document yy::parser::token. - Reported by Jerry Quinn. + doc: fix typo. + * tests/synclines.at: here. + +2010-05-04 Akim Demaille + + tests: enhance AT_SYNCLINES_COMPILE. + * tests/synclines.at (AT_SYNCLINES_COMPILE): More distcc patterns. + (AT_TEST_SYNCLINE): Remove GCC 4.5 protection which is already + taken care of in AT_SYNCLINES_COMPILE. 2010-05-04 Akim Demaille lalr1.cc: don't generate location.hh when location_type is defined - * data/bison.m4 (b4_percent_define_use): New. - (b4_percent_define_get): Use it. - Accept a default value. + * data/bison.m4 (b4_percent_define_get): Accept a default value. * data/c++.m4: Do not provide a default value for the %define variable location_type, rather, use b4_percent_define_get with a default argument where its value is needed. * data/lalr1.cc: Do not load location.cc (which outputs both location.hh and position.hh) if the user defined location_type. Do not include location.hh either. - * data/glr.cc: Likewise. + +2010-05-04 Akim Demaille + + lalr1.cc: minor refactoring. + * data/lalr1.cc: Don't issue empty namespaces. + +2010-05-04 Akim Demaille + + tests: fix %printer. + Currently, there is no check that %printer ... (nor + %destructor) is about an existing type. This C++ test had + it wrong (<::std::string> vs. ). + + * tests/c++.at (AT_CHECK_VARIANTS): In list.yy, redefine the + pretty-printing of lists into something better for parser traces. + Update the expected output. + Fix correspondance between %type/%token and %printer. 2010-05-04 Akim Demaille @@ -1143,14 +1259,6 @@ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Adjust to the location_type changes. -2010-05-04 Akim Demaille - - tests: enhance AT_SYNCLINES_COMPILE. - * tests/synclines.at (AT_TEST_SYNCLINE): Move GCC 4.5 protection - into... - (AT_SYNCLINES_COMPILE): here. - Add more distcc patterns. - 2010-05-01 Joel E. Denny tests: fix maintainer-xml-check. @@ -1314,7 +1422,7 @@ portability: fix for BSD make. Reported by Johan van Selst at . - * tests/Makefile.am ($(TESTSUITE)): Qualify package.m4 in + * tests/local.mk ($(TESTSUITE)): Qualify package.m4 in this dependency list as in package.m4's target rule. 2010-03-23 Joel E. Denny @@ -1324,6 +1432,8 @@ . * NEWS (2.4.3): New. * THANKS (Johan van Selst): Add. + * etc/prefix-gnulib-mk (prefix): Adjust regex for makefile + targets so that gnulib's new c++defs.h is matched. * gnulib: Update to latest. 2010-03-20 Joel E. Denny @@ -1376,7 +1486,7 @@ * bootstrap.conf (gnulib_modules): Add pipe. * gnulib: Update to latest to make sure we have all the latest fixes. - * lib/Makefile.am (libbison_a_SOURCES): Remove subpipe.h and + * lib/local.mk (lib_libbison_a_SOURCES): Remove subpipe.h and subpipe.c. * po/POTFILES.in (lib/subpipe.c): Remove. * src/files.c (compute_output_file_names): Update invocations @@ -1412,6 +1522,15 @@ * tests/atlocal.in (abs_top_srcdir): Remove shell variable, which is already defined in atconfig. +2010-01-22 Joel E. Denny + + tests: fix missing include caught by g++ 4.4.1. + Reported by Tys Lefering. + * HACKING (Release checks): Add note about trying a recent GCC. + * tests/regression.at (_AT_DATA_DANCER_Y): For C++, include + cstdlib for abort. + (_AT_DATA_EXPECT2_Y): Likewise. + 2010-01-21 Joel E. Denny * cfg.mk (gnulib_dir): Assume gnulib is a subdirectory. @@ -1497,45 +1616,6 @@ * HACKING (Release Procedure): Recommend a secure automake. -2008-12-11 Akim Demaille - - Propagate i18n changes into glr.c. - * data/glr.c (yyreportSyntaxError): Use "switch" instead of - building the error message format dynamically. - * data/lalr1.java: Formatting changes. - -2009-12-22 Joel E. Denny - - Port small part of master's 11707b2b so future ports are easier. - * data/lalr1.java (YYParser::yysyntax_error): Untabify. - -2008-12-11 Akim Demaille - - Simplify the i18n of the error messages. - * data/lalr1.cc: Comment changes. - -2008-11-11 Akim Demaille - - Prefer M4 to CPP. - * data/lalr1.cc: Use b4_error_verbose_if instead of #if - YYERROR_VERBOSE. - -2008-11-11 Akim Demaille - - Support i18n of the parse error messages. - * TODO (lalr1.cc/I18n): Remove. - * data/lalr1.cc (yysyntax_error_): Support the translation of the - error messages, as done in yacc.c. - Stay within the yy* pseudo namespace. - -2009-12-22 Joel E. Denny - - Port small part of master's 8901f32e so future ports are easier. - * data/lalr1.cc (yy::parser::yysyntax_error_): Always add second - argument, but name it in the function definition only when - verbose error messages are enabled and it'll thus be used. - (yy::parser::parse): Update use of yysyntax_error_. - 2009-12-29 Joel E. Denny portability: `<' and `>' are not always defined on addresses. @@ -1581,7 +1661,7 @@ action): New test group checking that translation happens before lookahead destructor calls at parser return. Previously, incorrect destructors were called. - * tests/conflicts.at (%error-verbose and consistent + * tests/conflicts.at (parse.error=verbose and consistent errors): New test group checking that translation happens at syntax error detection before the associated verbose error message and the associated lookahead destructor calls. While @@ -1609,6 +1689,19 @@ documentation. (LocalWords): Remove YYFAIL. +2009-12-20 Joel E. Denny + + tests: cleanup. + * tests/c++.at (Syntax error discarding no lookahead): Don't + ignore stderr. Instead, eliminate remaining warnings. + +2009-12-18 Joel E. Denny + + lalr1.cc: don't discard non-existent lookahead on syntax error. + * data/lalr1.cc (yy::parser::parse): Check yyempty first. + * tests/c++.at (Syntax error discarding no lookahead): New test + group. + 2009-12-17 Joel E. Denny Code cleanup. @@ -1673,6 +1766,14 @@ * tests/atlocal.in (LIBS): As for LDADD in src/local.mk, add lib/libbison.a so gnulib libraries can be linked. +2009-12-15 Joel E. Denny + + gnulib: update for fix of fprintf-posix, which we'll use soon. + * etc/prefix-gnulib-mk (prefix): Adjust regex for make file + targets so that gnulib's new arg-nonnull.h and link-warning.h + are matched. + * gnulib: Update. + 2009-12-14 Joel E. Denny Enable assertion output and --disable-assert for configure. @@ -1726,27 +1827,20 @@ * data/bison.m4: Update comments for rename to muscle-tab.h. -2009-10-08 Joel E. Denny - - Rename muscle_tab.* to muscle-tab.* for consistency with master. - * src/Makefile.am (bison_SOURCES): Update. - * src/getargs.c, src/ielr.c, src/lalr.c, src/main.c, - src/output.c, src/parse-gram.y, src/print.c, src/reader.c, - src/tables.c: Update include. - * src/muscle_tab.c, src/muscle_tab.h: Rename to... - * src/muscle-tab.c, src/muscle-tab.h: ... these and update - include. - 2009-10-07 Joel E. Denny Minor code cleanup. - * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT): Remove macro and + * src/muscle-tab.c (MUSCLE_USER_NAME_CONVERT): Remove macro and replace all uses with UNIQSTR_CONCAT. * src/uniqstr.c (uniqstr_vsprintf): New function. * src/uniqstr.h (uniqstr_vsprintf): Add prototype. (UNIQSTR_CONCAT, UNIQSTR_GEN_FORMAT, UNIQSTR_GEN_FORMAT_): New macros. +2009-10-06 Joel E. Denny + + * TODO (Complaint submessage indentation): New. + 2009-10-04 Joel E. Denny Minor code cleanup. @@ -1781,30 +1875,25 @@ message buffer, import and clean up memory management code from... (yyparse, yypush_parse): ... here. - * tests/regression.at (%error-verbose overflow): No longer an - expected failure. + * tests/regression.at (parse.error=verbose overflow): No longer + an expected failure. 2009-09-23 Joel E. Denny yysyntax_error: test memory management more. * tests/atlocal.in (NO_WERROR_CFLAGS): New cpp macro. - * tests/regression.at (%error-verbose and YYSTACK_USE_ALLOCA): - New test group. - (%error-verbose overflow): New test group that reveals an + * tests/regression.at (parse.error=verbose and + YYSTACK_USE_ALLOCA): New test group. + (parse.error=verbose overflow): New test group that reveals an obscure bug. Expected fail for now. -2008-12-11 Akim Demaille - - Pass the token type to yysyntax_error. - * data/yacc.c (yysyntax_error): Take the transated token instead - of the raw number. - Adjust callers. - -2008-12-11 Akim Demaille +2009-10-04 Joel E. Denny - Simplify the i18n of the error messages. - * data/yacc.c (yysyntax_error): Rewrite, using a switch instead - of building dynamically the format string. + benchmarks: use %debug consistently among grammars. + * etc/bench.pl.in (generate_grammar_triangular): Do not activate + %debug by default. It can affect the timings even if yydebug=0. + (generate_grammar_calc): For consistency with other grammars, + use YYDEBUG environment variable to set yydebug. 2009-10-03 Joel E. Denny @@ -1838,16 +1927,6 @@ * tests/regression.at (parse-gram.y: LALR = IELR): New test group. -2009-09-16 Akim Demaille - - doc: comment changes. - * doc/bison.texinfo: Comment changes. - -2009-09-16 Akim Demaille - - doc: spell checking. - * doc/bison.texinfo: here. - 2009-09-19 Alex Rozenman Keep sub-messages aligned. Fix strings for translation. @@ -1864,6 +1943,62 @@ * tests/named-ref.at: Adjust test-cases. * NEWS (2.5): Add an announcement about named references. +2009-09-17 Akim Demaille + + doc: fixes. + * doc/bison.texinfo: here. + Reported by Alex Rozenman. + +2009-09-16 Akim Demaille + + doc: lalr1.cc and variants. + * doc/bison.texinfo (Decl Summary): Document the "lex_symbol" and + "variant" %define variables. + (C++ Semantic Values): Split into... + (C++ Unions, C++ Variants): these. + The latter is new. + (C++ Parser Interface): Fix type names. + Document parser::syntax_error. + Document the fact that locations are not mandatory. + (C++ Scanner Interface): Split into... + (Split Symbols, Complete Symbols): these. + The later is new. + (Calc++ Parsing Driver): Use variants. + Add more comments. + Adjust style. + (Calc++ Parser): Declare all the tokens, no + longer accept raw characters. + Remove %union. + Adjust types and printers. + Remove destructors. + (Calc++ Scanner): Use make_ functions. + Use strerror in error message. + +2009-09-16 Akim Demaille + + doc: spell checking. + * doc/bison.texinfo: here. + +2009-09-16 Akim Demaille + + doc: comment changes. + * doc/bison.texinfo: Comment changes. + +2009-09-16 Akim Demaille + + lalr1.cc: factor the yytranslate_ invocation in make_SYMBOLS. + * data/c++.m4, data/lalr1.cc (parser::symbol_type): Change the + constructor to take a token_type instead of the (internal) symbol + number. + Call yytranslate_. + * data/variant.hh (b4_symbol_constructor_define_): Therefore, + don't call yytranslate_ here. + +2009-09-16 Akim Demaille + + TODO: statistics. + * TODO (Figures): New. + 2009-09-13 Joel E. Denny tests: clean up push.at test group titles. @@ -1887,19 +2022,79 @@ comment, instead of saying "yyparse or yypush_parse", say either "yyparse" or "yypush_parse" depending on which it actually is. -2009-09-03 Joel E. Denny +2009-09-10 Joel E. Denny - Complain about unused %define variables and %code qualifiers. - * NEWS (2.5): Document. - * data/bison.m4 (b4_check_user_names): Complain instead of warn. - * doc/bison.texinfo (Decl Summary): Document complaint, and - improve %define documentation a little otherwise. - * tests/input.at (Reject unused %code qualifiers): Update. - (%define errors): Update. - (%define, --define, --force-define): Update. - (%define backward compatibility): Update. - (Unused %define api.pure): Update. - * tests/push.at (Push Parsing: Unsupported Skeletons): Update. + Fix --enable-gcc-warnings. + * src/parse-gram.y (%printer ): Handle param_none. + +2009-09-09 Akim Demaille + + lalr1.cc: syntax_error as exceptions. + It is common to use sort of factories in the user actions. These + factories may check some "syntactic" constraints that are not + enforced by the grammar itself. This is possible using YYERROR + within the action itself. Provide the user with a means to throw + a syntax_error exception. + + * data/c++.m4 (b4_public_types_declare, b4_public_types_define): + Declare and define yy::parser::syntax_error. + * data/lalr1.cc: Include stdexcept. + (yy::parser::parse): Wrap the user action within a try/catch. + * data/glr.cc: Include stdexcept. + +2009-09-09 Akim Demaille + + lalr1.cc: add missing "inline". + * data/c++.m4 (b4_public_types_define): Add missing inline to + implementations provided in headers. + +2009-09-09 Akim Demaille + + %param: documentation. + * NEWS (2.6): Document %param, %lex-param, and %parse-param + changes. + * doc/bison.texinfo: Document that %lex-param and %parse-param + are n-ary. + Changes some examples to demonstrate it. + (Calc++ Parser): Use %param. + +2009-09-09 Akim Demaille + + Regen. + +2009-09-09 Akim Demaille + + style changes. + * src/parse-gram.y (add_param): Scope changes. + +2009-09-09 Akim Demaille + + %parse: support several arguments. + * src/parse-gram.y (current_param): New. + (param_type): Add param_none. + (params): New nonterminal. + Use it. + +2009-09-09 Akim Demaille + + Regen. + +2009-09-09 Akim Demaille + + %param. + Provide a means to factor lex-param and parse-param common + declarations. + + * src/parse-gram.y (param_type): New. + Define a %printer for it. + (add_param): Use it. + (%parse-param, %lex-param): Merge into... + (%parse): this new token. + Adjust the grammar to use it. + * src/scan-gram.l (RETURN_VALUE): New. + (RETURN_PERCENT_FLAG): Use it. + (RETURN_PERCENT_PARAM): New. + Use it to support %parse-param, %lex-param and %param. 2009-09-03 Joel E. Denny @@ -1918,6 +2113,34 @@ rename variable "exact_mode" to "explicit_bracketing". * tests/named-ref.at: Adjust existing tests and add a new one. +2009-09-04 Akim Demaille + + Adjust synclines in src/parse-gram.[ch]. + * tests/bison.in: Do some magic (including working around issues + with ylwrap) when this wrapper is used to compile + src/parse-gram.y. + +2009-09-03 Joel E. Denny + + Complain about unused %define variables and %code qualifiers. + * NEWS (2.5): Document. + * data/bison.m4 (b4_check_user_names): Complain instead of warn. + * doc/bison.texinfo (Decl Summary): Document complaint, and + improve %define documentation a little otherwise. + * tests/input.at (Reject unused %code qualifiers): Update. + (%define errors): Update. + (%define, --define, --force-define): Update. + (%define backward compatibility): Update. + (Unused %define api.pure): Update. + * tests/push.at (Push Parsing: Unsupported Skeletons): Update. + +2009-09-03 Joel E. Denny + + Don't suppress warnings about unused parse.error. + * data/bison.m4 (b4_error_verbose_flag): Don't examine value of + %define variable parse.error unless b4_error_verbose_flag is + actually expanded in a skeleton. + 2009-09-03 Akim Demaille * NEWS (2.4.2): Add "Internationalization" item. @@ -1948,7 +2171,8 @@ (Table of Symbols): Likewise. * src/ielr.c (LrType): Update documentation. * src/parse-gram.y (content.opt): Add production for ID. - * tests/calc.at: Remove quotes in most tests. + * tests/actions.at: Remove quotes in most tests. + * tests/calc.at: Likewise. * tests/existing.at: Likewise. * tests/input.at: Likewise. * tests/local.at: Likewise. @@ -2002,8 +2226,8 @@ 2009-08-26 Joel E. Denny Actually handle the yytable zero value correctly this time. - * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: Don't - mention zero values in the YYTABLE comments. + * data/bison.m4 (b4_integral_parser_tables_map): Don't mention + zero values in the YYTABLE comments. * data/glr.c (yytable_value_is_error): Don't check for zero value. * data/lalr1.cc (yy_table_value_is_error_): Likewise. @@ -2016,11 +2240,10 @@ 2009-08-25 Joel E. Denny More fixes related to last two patches. + * data/bison.m4 (b4_integral_parser_tables_map): Fix YYTABLE + comments: zero indicates syntax error not default action. * data/c.m4 (b4_table_value_equals): Comment that YYID must be defined. - * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: Fix - yytable comments: zero indicates syntax error not default - action. * data/glr.c (yyis_pact_ninf): Rename to... (yypact_value_is_default): ... this. (yyisDefaultedState): Update for rename. @@ -2134,12 +2357,67 @@ 2009-08-19 Akim Demaille - doc: %initial-action to initialize yylloc. + tests: distcc compliance. + * tests/synclines.at (AT_SYNCLINES_COMPILE): Discard distcc's + error messages from the output. + +2009-08-19 Akim Demaille + + variables: simplify the upgrade of namespace into api.namespace. + + This patch simplifies "variables: rename namespace as + api.namespace", commit 67501061076ba46355cfd9f9361c7eed861b389c. + Suggested by Joel E. Denny in + http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00006.html + + * src/muscle-tab.c (muscle_percent_variable_update): New. + (muscle_percent_define_insert): Use it in replacement of the + previous tr invocation. + Remove variable_tr, no longer needed. + * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy): + Remove. + * data/c++.m4: No longer handle namespace -> api.namespace. + * tests/input.at (%define backward compatibility): Check that + namespace is treated as api.namespace. + +2009-08-19 Akim Demaille + + doc: %initial-action to initialize yylloc. Reported by Bill Allombert. * doc/bison.texinfo: Set fill-column to 76. (Location Type): Document the use of %initial-action to initialize yylloc. +2009-08-19 Akim Demaille + + lalr1.cc: use state_type. + * data/lalr1.cc (yysyntax_error_): Use state_type. + Move argument names into yy*. + +2009-08-19 Akim Demaille + + lalr1.cc: get rid of yyparse's yystate. + yystate and yystack_[0].state are equal, keep only the latter. + The former was also used as a temporary variable to compute the + post-reduction state. Move this computation into an auxiliary + function. + + * data/glr.c (yyLRgotoState): Fuse variable definition and first + assignment. + * data/lalr1.cc (yy_lr_goto_state_): New. + (yyparse): Use it. + Replace remaining uses of yystate by yystate_[0].state. + Remove the former. + +2009-08-19 Akim Demaille + + lalr1.cc: destroy $$ when YYERROR is called. + * data/lalr1.cc (yyreduce): Compute the resulting state before + running the user action so that yylhs is a valid symbol. + (yyerrorlab): Since yylhs is complete (it knows its type), we can + simply call yy_destroy_ to destroy $$ on YYERROR invocations. + * tests/c++.at (AT_CHECK_VARIANTS): Test YYERROR with variants. + 2009-08-18 Joel E. Denny maint: update for gnulib's recent update-copyright changes @@ -2200,6 +2478,71 @@ * tests/input.at (Numbered tokens): Recombine tests now that the output should be deterministic across multiple numbers. +2009-08-12 Akim Demaille + + tests: GCC 4.5 compliance. + * tests/synclines.at (AT_SYNCLINES_COMPILE): Adjust to GCC 4.5's + messages about #error. + +2009-08-12 Akim Demaille + + build: fix the generation of the documentation. + Some of our targets use "bison --help", but they can't depend on + "bison" itself (to avoid additional requirements on the user), so + they used to call "make src/bison" in the commands. Then + concurrent builds may fail: one make might be aiming one of its + jobs at compiling src/bison, and another job at generating the man + page. If the latter is faster than the former, then we have two + makes that concurrently try to compile src/bison. + + This might also be a more convincing explanation for the failure + described in the patch "build: fix paths". + + * Makefile.am (SUFFIXES): Initialize. + * build-aux/move-if-change: New, symlink to gnulib's. + * build-aux/local.mk: Ship it. + * doc/common.x: Remove, merged into... + * doc/bison.x: here. + * doc/local.mk (doc/bison.help): New. + ($(CROSS_OPTIONS_TEXI)): Depend on it. + Use src/bison. + (.x.1): Replace with... + (doc/bison.1): this explicit, simpler, target. + (common_dep): Remove, inlined where appropriate. + (SUFFIXES, PREPATH): Remove, unused. + +2009-08-12 Akim Demaille + + gnulib: improve prefixing. + * configure.ac (gl_PREFIXED_LIBOBJS): Don't rename it, rather, + change the value of... + (gl_LIBOBJS): this. + Adjust more variables. + * etc/prefix-gnulib-mk (prefix_assignment): Don't rename + gl_LIBOBJS. + (prefix): Also transform rules whose targets have slashes. + Use $prefix liberally. + Map @MKDIR_P@ to $(MKDIR_P). + Prefix directories that are mkdir'd. + +2009-08-12 Akim Demaille + + build: fix paths. + When using $(top_builddir) inconsistently, Make (including GNU + Make) is sometimes confused. As a result it may want to build + lib/libbison.la and $(top_builddir)/lib/libbison.la (the same + file, different names) concurrently, which, amusingly enough, + might end with: + + ranlib lib/libbison.a + ranlib lib/libbison.a + make[2]: *** [lib/libbison.a] Segmentation fault + + on OS X. + + * doc/local.mk, src/local.mk: Do not use $(top_builddir) when not + needed. + 2009-08-12 Akim Demaille distcheck: fix. @@ -2208,7 +2551,7 @@ 2009-08-10 Joel E. Denny - * tests/Makefile.am (TESTSUITE_AT): Add named-refs.at. + * tests/local.mk (TESTSUITE_AT): Add named-refs.at. 2009-08-10 Joel E. Denny @@ -2273,7 +2616,7 @@ maint: automate b4_copyright updates. * Makefile.am (update-b4-copyright): New target rule. - * build-aux/Makefile.am (EXTRA_DIST): Add update-b4-copyright. + * build-aux/local.mk (EXTRA_DIST): Add update-b4-copyright. * build-aux/update-b4-copyright: New. * data/yacc.c: Remove stray characters around b4_copyright invocations. @@ -2330,14 +2673,6 @@ * src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length variable. -2009-07-24 Alex Rozenman - - Fix some memory leaks. - * src/named-ref.c: Add a pointer check (named_ref_free). - * src/scan-code.l: New function (variant_table_free). Called in - code_scanner_free. - * src/symlist.c: Call to named_ref_free (symbol_list_free). - 2009-07-24 Joel E. Denny Warn about character literals not of length one. @@ -2347,6 +2682,14 @@ (SC_ESCAPED_CHARACTER): Warn if length is wrong. * tests/input.at (Bad character literals): New test group. +2009-07-24 Alex Rozenman + + Fix some memory leaks. + * src/named-ref.c: Add a pointer check (named_ref_free). + * src/scan-code.l: New function (variant_table_free). Called in + code_scanner_free. + * src/symlist.c: Call to named_ref_free (symbol_list_free). + 2009-07-24 Joel E. Denny * src/lalr.c (state_lookahead_tokens_count): Correct comment. @@ -2371,10 +2714,6 @@ do not distinguish between a missing value and an empty string value. -2009-07-21 Joel E. Denny - - * m4/m4.m4: Make it a sym link to submodules/autoconf/m4/m4.m4. - 2009-07-15 Joel E. Denny Revert unnecessary column realignment in --help output. @@ -2384,8 +2723,8 @@ 2009-07-04 Alex Rozenman - Alphabetical order in src/Makefile.am. - * src/Makefile.am: Adjust. + Alphabetical order in src/local.mk. + * src/local.mk: Adjust. 2009-07-04 Alex Rozenman @@ -2415,6 +2754,35 @@ Not only this is inefficient, this also builds incorrect sources with several extractions mixed together. +2009-06-29 Akim Demaille + + parse.error: fix. + * data/bison.m4: Move code related to specific variables after the + definition of the variable-maintaining macros so that we don't + "invoke" b4_percent_define_check_values before it is defined. + +2009-06-29 Akim Demaille + + variables: parse.error + + Implement, document, and test the replacement of %error-verbose + by %define parse.error "verbose". + * data/bison.m4 (b4_error_verbose_if): Reimplement to track the + values of the parse.error variable. + Make "simple" its default value. + Check the valid values. + * src/parse-gram.y: Use %define parse.error. + (PERCENT_ERROR_VERBOSE): New token. + Support it. + * src/scan-gram.l: Support %error-verbose. + + * doc/bison.texinfo (Decl Summary): Replace the documentation of + %define error-verbose by that of %define parse.error. + * NEWS: Document it. + + * tests/actions.at, tests/calc.at: Use parse.error instead of + %error-verbose. + 2009-06-27 Alex Rozenman Implement support for named symbol references. @@ -2441,6 +2809,27 @@ hash: check insertion for memory exhaustion. * src/uniqstr.c (uniqstr_new): New. +2009-06-24 Akim Demaille + + variables: rename namespace as api.namespace. + Discussed in + http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00033.html + + * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy): + New. + (b4_percent_define_use): New. + Use it where applicable. + * data/c++.m4: Replace uses of the variable "namespace" by + "api.namespace". + Default the latter to the former. + * doc/bison.texinfo (Decl Summary): Document "namespace" as + obsolete. + Document api.namespace. + Use @samp to document %define uses, keep @code for identifiers. + * NEWS: Likewise. + * tests/c++.at, tests/input.at: Test api.namespace instead of + namespace. (The tests passed with namespace.) + 2009-06-11 Akim Demaille style changes. @@ -2462,6 +2851,13 @@ * src/state.c (state_hash_insert): Check the return value of hash_insert. +2009-06-11 Akim Demaille + + tests: honor TESTSUITEFLAGS in every check target. + * tests/local.mk (RUN_TESTSUITE): New. + (check-local, installcheck-local, maintainer-check-g++) + (maintainer-check-posix, maintainer-check-valgrind): Use it. + 2009-06-10 Akim Demaille deterministic test suite. @@ -2478,6 +2874,17 @@ Use different file names for the three tests to make the maintenance easier. +2009-06-10 Akim Demaille + + gnulib: update. + * gnulib: Update to latest. + * lib/.cvsignore, lib/.gitignore, m4/.cvsignore, + * m4/.gitignore: Regen. + * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr): + Call xalloc_die on hash_insert failures. + Requested by the new __warn_unused_result__ attribute of + hash_insert. + 2009-06-10 Akim Demaille deterministic user-token-number redeclaration errors. @@ -2492,14 +2899,9 @@ 2009-05-25 Akim Demaille - gnulib: update. - * gnulib: Update to latest. - * lib/.cvsignore, lib/.gitignore, m4/.cvsignore, - * m4/.gitignore: Regen. - * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr): - Call xalloc_die on hash_insert failures. - Requested by the new __warn_unused_result__ attribute of - hash_insert. + build: avoid ignored errors. + * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Don't generate ignored + errors, they pollute the output. 2009-05-22 Joel E. Denny @@ -2507,8 +2909,8 @@ * NEWS (2.5): Add a new entry for that change. * doc/bison.texinfo (Decl Summary): Update %define entry. (Bison Options): Update -D/--define/-F/--force-define entry. - * src/muscle_tab.c (muscle_percent_define_insert): Implement. - * src/muscle_tab.h (muscle_percent_define_insert): Update + * src/muscle-tab.c (muscle_percent_define_insert): Implement. + * src/muscle-tab.h (muscle_percent_define_insert): Update comments. * tests/input.at (`%define errors'): Update. (`%define, --define, --force-define'): Update. @@ -2526,11 +2928,13 @@ * src/getargs.c (usage): Document -F/--force-define. Realign options in output. (short_options, long_options, getargs): Parse -F/--force-define, - and update muscle_percent_define_insert invocation. - * src/muscle_tab.h (muscle_percent_define_how): New enum type. + and update muscle_percent_define_insert invocations. + * src/muscle-tab.h (muscle_percent_define_how): New enum type. (muscle_percent_define_insert): Add argument with that type. - * src/muscle_tab.c (muscle_percent_define_insert): Implement + * src/muscle-tab.c (muscle_percent_define_insert): Implement -F/--force-define behavior and priorities. + (muscle_percent_define_ensure): Update + muscle_percent_define_insert invocation. * src/parse-gram.y (prologue_declaration): Update muscle_percent_define_insert invocations. * tests/input.at (`%define, --define'): Rename to... @@ -2541,13 +2945,9 @@ Update some comments to make sense for -D. * data/bison.m4 (b4_check_user_names): In header comments, say "user occurrence" instead of "grammar occurrence". - * src/muscle_tab.h (muscle_percent_define_insert): Likewise. + * src/muscle-tab.h (muscle_percent_define_insert): Likewise. (muscle_percent_code_grow): Likewise just for consistency. -2009-05-22 Joel E. Denny - - * data/c++.m4: Update copyright year. - 2009-05-20 Joel E. Denny * data/c++.m4 (b4_namespace_close): Simplify slightly. @@ -2566,21 +2966,34 @@ * src/getargs.c (skeleton_arg): Remove now useless variable. Should help the compiler see that this printf-like call is sane. +2009-05-15 Akim Demaille + + Rename token.prefix as api.tokens.prefix. + Discussed here. + http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00024.html. + + * NEWS, data/bison.m4, data/c.m4, data/java.m4, doc/bison.texinfo, + * tests/c++.at, tests/calc.at, tests/java.at, tests/local.at + (token.prefix): Rename as... + (api.tokens.prefix): this. + 2009-05-11 Akim Demaille doc: use C++ headers. * doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C headers. -2009-05-05 Akim Demaille - - fix hexadecimal token number support. - * src/scan-gram.l: Catch incorrect ids after hexadecimal numbers. - -2009-05-05 Akim Demaille +2009-05-11 Akim Demaille - tests: check token numbers. - * tests/input.at (Numbered tokens): New. + doc: token.prefix + * doc/bison.simple (Decl Summary): Document token.prefix. + (Calc++ Parser): Various fixes. + Formatting changes. + Use token.prefix. + Introduce a macro TOKEN to shorten the code and make it more + readable. + (Calc++ Scanner): Adjust. + * NEWS (Variable token.prefix): New. 2009-05-04 Akim Demaille @@ -2588,11 +3001,6 @@ * src/scan-gram.l({int}{id}): Report as an invalid identifier. * tests/input.at: Adjust. -2009-05-04 Akim Demaille - - space changes. - * src/scan-gram.l: Untabify to be robust to zealous editors. - 2009-05-04 Akim Demaille identifiers: dashes are letters. @@ -2622,7 +3030,7 @@ * data/c.m4 (b4_identification): Update comment. * data/yacc.c: Update access. * doc/bison.texinfo: Update. - * etc/bench.pl.in (bench_grammar): Update use. + * etc/bench.pl.in (bench_push_parser): Update use. * src/files.c (tr): Move to... * src/getargs.c, src/getargs.h (tr): ... here because I can't think of a better place to expose it. My logic is that, for all @@ -2664,38 +3072,11 @@ Pacify ./configure --enable-gcc-warnings. * tests/input.at (Symbols): Prototype yyerror and yylex. -2009-04-21 Akim Demaille - - tests: check the use of dashes and periods in symbols. - * tests/input.at (Symbol): New test group. - 2009-04-29 Joel E. Denny Document how `%define "var" "value"' is not M4-friendly. * src/parse-gram.y (variable): In comments here. -2009-04-29 Joel E. Denny - - Add copyright updates missed during previous cherry pick. - * src/output.c: Here. - * src/parse-gram.y: Here. - * src/scan-gram.l: Here. - -2009-04-20 Akim Demaille - - variables: accept dashes. - * src/scan-gram.l ({id}): Also accept dashes after the initial - letter. - ({directive}): Use {id}. - * src/parse-gram.y: Comment and formatting changes. - * doc/bison.texinfo (Symbols): Adjust the lexical definitions of - symbols. - * src/complain.h, src/complain.c (yacc_at): New. - * src/symtab.c (symbol_new): Use yacc_at to report inappropriate - symbol names. - * src/output.c (token_definitions_output): Do not #define token - names with dashes. - 2009-04-24 Joel E. Denny Clean up recent patches a little. @@ -2709,7 +3090,7 @@ Suggested by Akim Demaille at . * data/bison.m4 (_b4_percent_define_check_values): Implement. - * src/muscle_tab.c (muscle_percent_define_check_values): Implement. + * src/muscle-tab.c (muscle_percent_define_check_values): Implement. * tests/input.at (%define lr.default_reductions invalid values): Merge into... (%define enum variables): ... here, and update output. @@ -2721,8 +3102,9 @@ comments, and renaming %define lr.default_rules to %define lr.default_reductions. * NEWS (2.5): Update IELR documentation. - * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: - Adjust YYDEFACT and yydefact_ documentation. + * data/bison.m4 (b4_integral_parser_tables_map): Adjust YYDEFACT + documentation. + * data/glr.c, data/lalr1.java: Sync copyright dates. * doc/bison.texinfo (Decl Summary): Adjust lr.default_reductions and lr.type documentation. Make some other wording improvements. @@ -2744,6 +3126,11 @@ * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): Rename to... (AT_TEST_LR_DEFAULT_REDUCTIONS): ... this, and update. +2009-04-21 Akim Demaille + + tests: check the use of dashes and periods in symbols. + * tests/input.at (Symbol): New test group. + 2009-04-21 Joel E. Denny Document %define lr.type and lr.default_rules. @@ -2873,6 +3260,45 @@ (`%define lr.default_rules "consistent"'): Likewise. (`%define lr.default_rules "accepting"'): Likewise. +2009-04-20 Akim Demaille + + Formatting change. + +2009-04-20 Akim Demaille + + bison: factoring. + * src/output.c (token_definitions_output): Use symbol_id_get + instead of duplicating its logic. + * TODO (YYERRCODE): Extend. + +2009-04-20 Akim Demaille + + variables: prefer error-verbose to error_verbose. + * data/bison.m4 (b4_error_verbose_if): Based on error-verbose + instead of error_verbose. + * src/scan-gram.l (%error-verbose): Map to the error-verbose + variable. + * doc/bison.texinfo: Promote %define error-verbose instead of + %error-verbose. + * tests/actions.at: Prefer %define error-verbose to %error-verbose. + +2009-04-15 Akim Demaille + + variables: accept dashes. + * data/bison.m4 (b4_percent_define_if_define_): Also map dashes to + underscores. + * src/scan-gram.l ({id}): Also accept dashes after the initial + letter. + ({directive}): Use {id}. + * src/parse-gram.y: Comment and formatting changes. + * doc/bison.texinfo (Symbols): Adjust the lexical definitions of + symbols. + * src/complain.h, src/complain.c (yacc_at): New. + * src/symtab.c (symbol_new): Use yacc_at to report inappropriate + symbol names. + * src/output.c (token_definitions_output): Do not #define token + names with dashes. + 2009-04-20 Akim Demaille Consistently refer to Yacc, not YACC. @@ -2889,30 +3315,31 @@ Document semicolon warnings. * NEWS (2.5): Here. -2008-12-08 Akim Demaille +2009-04-14 Akim Demaille - Fix portability issue in the test suite. - * tests/local.at (AT_MATCHES_CHECK): New. - Based on Perl instead of Sed. Sed has too many portability - pitfalls, not ever Sed is GNU Sed. - * tests/actions.at (Fix user actions without a trailing semicolon): - Use it. + variables: use `parse.assert' instead of `assert'. + * TODO (assert): Remove. + * data/bison.m4 (b4_assert_if): Replace with... + (b4_parse_assert_if): this. + * data/lalr1.cc, data/variant.hh, tests/c++.at: Adjust. + * doc/bison.texinfo (Decl Summary): Document parse.assert. -2008-12-07 Di-an Jan +2009-04-14 Akim Demaille - Implement the FIXME that ends an user action with a semicolon - if it seems necessary. - * src/scan-code.l (flex rules section): Flag cpp directive from - any `#' to the first unescaped end-of-line. Semicolon is not - needed after `;', `{', '}', or cpp directives and is needed after - any other token (whitespaces and comments have no effect). - * tests/actions.at (Fix user actions without a trailing semicolon): - New test. - * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to - to make user actions complete statements. - Adjust column numbers in error messages. - * tests/regression.at (Fix user actions without a trailing semicolon): - Remove. Covered by new test. + variables: use `parse.trace' instead of `debug'. + * src/getargs.c (getargs): Map -t to %define trace.parse. + * src/scan-gram.l (%debug): Map to %define trace.parse. + * data/bison.m4 (b4_percent_define_if_define): Map `.' in variable + names to `_' in macro names. + (b4_debug_if): Replace with... + (b4_parse_trace_if): this. + * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java, + * data/yacc.c: Adjust. + * doc/bison.texinfo (Decl Summary): Document %debug as obsoleted. + Use @code to label the variable list. + Document the variable parse.trace. + (Tracing): Promote the parse.trace variable. + * TODO: %printer is not documented. 2009-04-14 Akim Demaille @@ -2933,161 +3360,131 @@ 2009-04-06 Joel E. Denny - * NEWS (2.5): Describe new -D/--define feature. - -2008-11-10 Akim Demaille - - --trace=muscles - * src/getargs.h, src/getargs.c (trace_muscle): New. - (trace_types, trace_args): Support it. - * src/output.c (output_skeleton): Use it. + * NEWS (2.5): New section. Describe new -D/--define feature. -2008-11-10 Akim Demaille +2009-04-06 Akim Demaille - muscles_output. - * src/output.c (muscles_output): New, extracted from... - (output_skeleton): here. - Adjust. + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. -2008-11-21 Akim Demaille +2009-04-06 Akim Demaille - Display the changes in cross-options.texi. - * build-aux/cross-options.pl ($sep): New, to separate items. - * doc/Makefile.am ($(srcdir)/cross-options.texi): Use diff to display - the changes. + rename muscle_tab.* as muscle-tab.* for consistency. + * src/muscle_tab.h, src/muscle_tab.c: Rename as... + * src/muscle-tab.h, src/muscle-tab.c: these. + * src/getargs.c, src/local.mk, src/main.c, src/output.c, + * src/parse-gram.y, src/reader.c, src/scan-code.l: Adjust. -2008-11-20 Di-an Jan +2009-04-06 Akim Demaille - Improves options in the manual. - * doc/bison.texinfo (-g, -x): Add space before argument. - (Option Cross Key): Implement FIXME: listing directives also. - * build-aux/cross-options.pl: Read from rather than <>. - (Short Option): Special case -d. Put arguments inside @option. - (Bison Directive): Add column, automatically extracted from - src/scan-gram.l (actual name passed as the first argument) - with special case for %define. - * doc/Makefile.am (doc/cross-options.texi): Pass src/scan-gram.l - to build-aux/cross-options.pl. - * src/getargs.c (usage): Document limitations of cross-options.pl. - * src/scan-gram.l: Likewise. + Makefile: introduce $(BISON). + * src/local.mk (BISON): New. + (YACC): Use it. -2009-02-25 Akim Demaille +2009-04-06 Akim Demaille - Copyright years. - * data/glr.c: Add 2007 and 2008 here, consistenly with the comments. + parser: handle %locations as %define locations. + * src/getargs.h, src/getargs.c (locations_flag): Remove. + * src/getargs.c, src/scan-code.l: Use muscle_percent_define_ensure + to set "locations" to true. + * src/output.c (prepare): Don't output "locations". + * src/scan-gram.l (%locations): Handle it as a %. + * src/parse-gram.y: It's no longer a token. + Don't handle it. + * data/bison.m4 (b4_locations_if): Define it with + b4_percent_define_if_define. + * data/c.m4, data/glr.cc: Adjust. -2008-12-08 Akim Demaille +2009-04-06 Akim Demaille - Install autoconf as a submodule to get m4sugar. - * .gitmodules: Add submodules/autoconf. - * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into - submodules/autoconf. + Regen. + * src/parse-gram.c: Regen. -2008-11-17 Joel E. Denny +2009-04-06 Akim Demaille - Simplify last patch slightly. - * src/getargs.c (getargs): Here. + muscle: factor the handling of obsolete of obsolete directives. + Suggested by Joel E. Denny. -2008-11-17 Joel E. Denny + * src/muscle_tab.h, src/muscle_tab.c (muscle_percent_define_ensure): + New, extracted from... + * src/parse-gram.y (prologue_declaration: pure-parser): here. + Remove it. + (prologue_declaration: "%"): Use + muscle_percent_define_ensure. + (%error-verbose, %pure-parser): No longer tokens. + * src/scan-gram.l (pure-parser): Return as a %. - Fix last warning from --enable-gcc-warnings. - * src/getargs.c (getargs): Don't assign const address to non-const - pointer. +2009-04-06 Joel E. Denny -2008-11-17 Di-an Jan + Fix options documentation. + * build-aux/cross-options.pl: As in --help output, write optional + arguments as [=ARG] not =[ARG]. + * doc/bison.texinfo (Bison Options): Add -W/--warnings argument. - Handle --enable-gcc-warnings. - * src/getargs.c (command_line_location): Set parameters to void. +2009-04-04 Joel E. Denny -2008-11-11 Akim Demaille + Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4. + If the first m4 in $PATH is wrong, it keeps looking. Moreover, its + requirements for a correct m4 are stricter. + * m4/m4.m4: Make it a symbolic link to submodules/autoconf/m4/m4.m4. + * configure.ac: Update to use AC_PROG_GNU_M4. + Reported by Eric Blake. - AT_FULL_COMPILE. - * tests/actions.at, tests/regression.at: Use it. +2009-04-03 Joel E. Denny -2008-11-07 Akim Demaille + Help with updating web manual. + * HACKING: Incorporate instructions from gnulib/doc/README. + * bootstrap.conf (gnulib_modules): Add gendocs. - Pass command line location to skeleton_arg and language_argmatch. - * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch): - The location argument is now mandatory. - Adjust all dependencies. - (getargs): Use command_line_location. +2009-04-03 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. + +2009-04-03 Akim Demaille + + Factor %FLAG at scan level. + * src/parse-gram.y (PERCENT_DEBUG, PERCENT_ERROR_VERBOSE): Token + definitions and associated rules, replaced by.... + (PERCENT_FLAG): this new token type, and rule. + * src/scan-gram.l (RETURN_PERCENT_FLAG): New. + Use it for %debug and %error-verbose. + +2009-04-03 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. + +2009-04-03 Akim Demaille + + Treat %debug as %define debug. + * data/bison.m4 (b4_debug_if): New. + * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c, + * data/lalr1.java: Use it instead of b4_debug_flag. + * src/getargs.h, src/getargs.c (debug_flag): Remove. + * src/output.c (prepare): Don't output it. + * src/parse-gram.y: Treat %debug as %define debug. + +2009-04-03 Akim Demaille + + Treat %error-verbose as %define error_verbose. + This allows to pass -Derror_verbose on the command line. Better + yet, it allows to pass -Derror_verbose=$(ERROR_VERBOSE), with + ERROR_VERBOSE being defined as false or true. + * data/bison.m4 (b4_percent_define_if_define): Instead of relying + on b4_percent_define_ifdef, for does not check the defined value, + but only whether the symbol is defined, rely on + b4_percent_define_flag_if, so that a value of "false" is processed + as a false. + If not defined, define the flag to "false". + (b4_error_verbose_if): New. + * data/glr.c, data/lalr1.cc, data/yacc.c: Use it instead of + b4_error_verbose_flag. + * src/getargs.h, src/getargs.c (error_verbose_flag): Remove. + * src/output.c (prepare): Don't output it. + * src/parse-gram.y (%error-verbose): Treat as %define error_verbose. -2008-11-07 Akim Demaille - - -D, --define. - * src/getargs.c (usage): Document -D. - Fix help string for --locations. - (command_line_location): New. - (short_options, long_options, getargs): Support -D, --define. - (getargs): Move -d support at the right place. - * doc/bison.texinfo (Bison Options): Update. - * tests/input.at (%define, --define): New. - -2008-11-07 Akim Demaille - - Initialize the muscle table before parsing the command line. - * src/getargs.c (quotearg.h, muscle_tab.h): Include. - (getargs): Define file_name. - * src/main.c (main): Initialize muscle_tab before calling - getargs. - * src/muscle_tab.c (muscle_init): No longer define file_name, as - its value is not available yet. - -2008-11-09 Akim Demaille - - Require the generation of parse-gram.output. - * src/Makefile.am (YACC): Pass --report=all. - -2009-04-06 Joel E. Denny - - * NEWS (2.5): New stub. - -2009-04-06 Joel E. Denny - - Fix options documentation. - * build-aux/cross-options.pl: As in --help output, write optional - arguments as [=ARG] not =[ARG]. - * doc/bison.texinfo (Bison Options): Add -W/--warnings argument. - -2008-11-07 Akim Demaille - - Fix --help. - * src/getargs.c (usage): Fix help string for -W. - -2008-11-07 Akim Demaille - - Handle more general types of option arguments. - * build-aux/cross-options.pl: The argument ends at the first - space, not the first non-symbol character. - Use @var for each word appearing the argument description. - -2009-04-04 Joel E. Denny - - Remove spurious initial empty lines. - * data/location.cc: End the @output lines with an @. - -2008-11-04 Akim Demaille - - Remove spurious initial empty lines. - * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java, - * data/yacc.c: End the @output lines with an @. - -2009-04-04 Joel E. Denny - - Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4. - If the first m4 in $PATH is wrong, it keeps looking. Moreover, its - requirements for a correct m4 are stricter. - * m4/m4.m4: Replace with Autoconf 2.63's m4/m4.m4. - * configure.ac: Update to use AC_PROG_GNU_M4. - Reported by Eric Blake. - -2009-04-03 Joel E. Denny - - Help with updating web manual. - * HACKING: Incorporate instructions from gnulib/doc/README. - * bootstrap.conf (gnulib_modules): Add gendocs. - -2009-04-03 Joel E. Denny +2009-04-03 Joel E. Denny Fix strange %define locations for default values. Reported by Akim Demaille at @@ -3106,16 +3503,12 @@ * tests/skeletons.at (%define Boolean variables: invalid skeleton defaults): Update output. -2008-11-07 Akim Demaille - - Locations without columns for command line arguments. - * src/location.c (location_print): Don't display negative columns. - * src/location.h: Document this. - -2009-02-03 Joel E. Denny +2009-04-03 Joel E. Denny - Add reminder about uploading public key to keys.gnupg.net. - * HACKING (Release Procedure): Here. + Pacify ./configure --enable-gcc-warnings. + * Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS) because many files + in lib won't compile with it. + * src/local.mk (src_bison_CFLAGS): Use $(WERROR_CFLAGS) here only. 2009-03-31 Akim Demaille @@ -3158,8 +3551,201 @@ gnulib: update. * gnulib: Update to latest. - * lib/Makefile.am (AM_CPPFLAGS): It is now defined by gnulib, so - use +=. + * src/local.mk (AM_CFLAGS): Move to... + * Makefile.am: here. + * etc/prefix-gnulib-mk (prefix_assignment): Also transform + AM_CFLAGS. + +2009-03-02 Akim Demaille + + Comment changes. + +2009-03-02 Akim Demaille + + Share b4_yytranslate_define. + * data/lalr1.cc (b4_yytranslate_define): Move to... + * data/c++.m4: here. + +2009-03-02 Akim Demaille + + Use locations in the variant example. + Yes, this obfuscates the point of this example, variants only. + But glr.cc cannot work (yet?) without locations. This change + makes it easier to use this example with glr.cc. + + * examples/variant.yy (assert): %define it. + (locations): Request them. + (yylex): Bind the location to the stage. + +2009-03-02 Akim Demaille + + Dub make_TOKEN as a public type interface. + * data/c++.m4 (b4_symbol_constructor_declare) + (b4_symbol_constructor_define): New empty stubs. + (b4_public_types_declare, b4_public_types_define): Use them. + * data/lalr1.cc (b4_symbol_constructor_declare) + (b4_symbol_constructor_declare_) + (b4_symbol_constructor_define_, b4_symbol_constructor_define): + Move to... + * data/variant.hh: here. + Remove the "b4_variant_if" parts, as variant.hh is loaded only if + needed. + * data/lalr1.cc: No longer invoke b4_symbol_constructor_define and + b4_symbol_constructor_declare, as it is now done by + b4_public_types_define and b4_public_types_declare. + +2009-03-02 Akim Demaille + + Coding style changes. + * data/lalr1.cc (b4_symbol_constructor_declaration_) + (b4_symbol_constructor_declarations) + (b4_symbol_constructor_definition_) + (b4_symbol_constructor_definitions) + (b4_yytranslate_definition): Rename as... + (b4_symbol_constructor_declare_) + (b4_symbol_constructor_declare) + (b4_symbol_constructor_define_) + (b4_symbol_constructor_define) + (b4_yytranslate_define): these. + * data/variant.hh (b4_variant_definition): Rename as... + (b4_variant_define): this. + +2009-03-02 Akim Demaille + + Factor b4_assert_if, b4_lex_symbol_if, and b4_variant_if. + * data/bison.m4 (b4_percent_define_if_define): New. + * data/c++.m4 (b4_variant_if): Move to... + * data/bison.m4: Here, using b4_percent_define_if_define. + * data/lalr1.cc (b4_assert_if, b4_lex_symbol_if): Move to... + * data/bison.m4: Here, using b4_percent_define_if_define. + +2009-03-02 Akim Demaille + + Dub symbol_type_base as a public type. + * data/c++.m4 (b4_public_types_declare): Now define + symbol_type_base and symbol_type. + (b4_public_types_define): New. + In both cases, the definitions are taken verbatim from lalr1.cc. + * data/lalr1.cc: Adjust. + +2009-03-02 Akim Demaille + + b4_public_types_declare. + * data/c++.m4 (b4_public_types_declare): New. + * data/glr.cc, data/lalr1.cc: Use it. + +2009-03-02 Akim Demaille + + b4_semantic_type_declare. + * data/c++.m4 (b4_semantic_type_declare): New. + Factors and generalizes what was in glr.cc and lalr1.cc. + * data/variant.hh (b4_semantic_type_declare): Redefine it for + variants. + * data/lalr1.cc, data/glr.cc: Use it. + +2009-02-26 Akim Demaille + + Upgrade gnulib. + * gnulib: Upgrade from master. + * lib/.cvsignore, lib/.gitignore, m4/.cvsignore, m4/.gitignore: + Regen. + +2009-02-25 Akim Demaille + + Remove useless arguments. + * data/glr.c (yy_reduce_print): $$ and @$ are not used and not + relevant. + +2009-02-25 Akim Demaille + + Comment changes. + * data/lalr1.cc: here. + +2009-02-25 Akim Demaille + + Fix glr.cc's debug level handling. + * data/glr.cc (yydebug_): Remove, as it is actually yydebug from + glr.c which is used. + (debug_level, set_debug_level): Adjust. + +2009-02-25 Akim Demaille + + Copyright years. + * data/glr.c: Add 2007 and 2008 here, consistenly with the comments. + +2009-02-25 Akim Demaille + + Style changes. + * etc/bench.pl.in (generate_grammar_list): Consitently use + location_type, not yy::location. + +2009-02-25 Akim Demaille + + Comment change. + * data/lalr1.cc: here. + +2009-02-19 Akim Demaille + + Make yyparser::error public. + * data/lalr1.cc: here. + There is no good reason to keep it private (and it is convenient + to use it from the scanner for instance). It is already public in + glr.cc. + +2009-02-19 Akim Demaille + + Comment changes. + * data/glr.cc: here. + +2009-02-19 Akim Demaille + + Remove trailing blanks. + The epilogue has its own ending \n, no need to add another. + + * data/glr.c, data/lalr1.java, data/yacc.c: dnl when outputing the + epilogue. + * data/glr.cc: dnl when extending the epilogue. + Remove stray "private:". + +2009-02-19 Akim Demaille + + Use b4_c_modern. + * data/c.m4 (b4_c_function_decl): Here. + +2009-02-19 Akim Demaille + + Comment changes. + * data/lalr1.cc: here. + +2009-02-19 Akim Demaille + + Extract variant.hh + * data/variant.hh: New, extracted from... + * data/lalr1.cc: here. + Adjust. + * data/local.mk: Adjust. + +2009-02-19 Akim Demaille + + Extract stack.hh from lalr1.cc. + * data/stack.hh: New. + * data/lalr1.cc: Extract from here. + * data/local.mk: Adjust. + +2009-02-03 Joel E. Denny + + Add reminder about uploading public key to keys.gnupg.net. + * HACKING (Release Procedure): Here. + +2009-01-28 Akim Demaille + + * NEWS: Update information about 2.4.1 and 2.4.2. + +2008-11-04 Akim Demaille + + Reformat NEWS. + * NEWS: Use more outline-mode markup. + Suggested by Jim Meyering. 2009-01-08 Akim Demaille @@ -3175,30 +3761,110 @@ * tests/java.at: Use $EGREP instead of egrep. Use AT_CHECK's ignore instead of grep's -q. -2008-12-11 Joel E. Denny +2008-12-11 Akim Demaille + + Pass the token type to yysyntax_error. + * data/yacc.c (yysyntax_error): Take the transated token instead + of the raw number. + Adjust callers. + * TODO: Update. - Version 2.4.1. - * NEWS: Set version and date. - * lib/Makefile.am: Update copyright year. - * tests/atlocal.in: Update copyright year. +2008-12-11 Akim Demaille -2008-12-11 Joel E. Denny + Formatting changes. + * data/glr.c: Formatting changes. - Semicolon feature removal is not about future language support. - * NEWS: The semicolon feature is no longer active for newer languages, - so don't claim that it causes trouble for them. +2008-12-11 Akim Demaille -2008-12-11 Joel E. Denny + Propagate i18n changes into glr.c. + * TODO: Update. + * data/glr.c (yyreportSyntaxError): Use "switch" instead of + building the error message format dynamically. + * data/lalr1.java: Formatting changes. - * gnulib: Update submodule to HEAD. +2008-12-11 Akim Demaille -2008-12-09 Akim Demaille + Use testsuite -C. + * tests/local.mk: Replace "cd && testsuite" by "testsuite -C". + Solves problems when top_srcdir is an absolute path. + Suggested by Eric Blake. + * configure.ac: Require Autoconf 2.62. + +2008-12-11 Akim Demaille + + Simplify the i18n of the error messages. + * data/lalr1.cc: Comment changes. + * data/yacc.c (yysyntax_error): Rewrite, using a switch as in + lalr1.cc instead of building dynamically the format string. + +2008-12-08 Akim Demaille + + Fix portability issue in the test suite. + * tests/local.at (AT_MATCHES_CHECK): New. + Based on Perl instead of Sed. Sed has too many portability + pitfalls, not ever Sed is GNU Sed. + * tests/actions.at (Fix user actions without a trailing semicolon): + Use it. + +2008-12-08 Akim Demaille Update data/README. * data/README: Document glr.cc, lalr1.java, m4sugar and xslt. +2008-12-08 Akim Demaille + + Install autoconf as a submodule to get m4sugar. + * .gitmodules: Add submodules/autoconf. + * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into + submodules/autoconf. + +2008-12-08 Akim Demaille + + Test token.prefix in all the skeletons. + * data/java.m4 (b4_token_enum): Use the token.prefix. + * tests/local.at (AT_BISON_OPTION_PUSHDEFS): Define AT_TOKEN_PREFIX. + * tests/calc.at (_AT_DATA_CALC_Y): Use it. + Add checks for yacc.c, glr.c, lalr1.cc and glr.cc. + * tests/java.at: Comment changes. + (AT_CHECK_JAVA_MINIMAL): Define the END token. + (Java parser class and package names): Add token.prefix check. + +2008-12-08 Akim Demaille + + Fix regeneration of atconfig. + * tests/local.mk (tests/atconfig): The rule was incorrect, but + remove it: now that there is no tests/Makefile.am, the top-level + Makefile properly updates atconfig when needed. + +2008-12-07 Di-an Jan + + Implement the FIXME that ends an user action with a semicolon + if it seems necessary. + * src/scan-code.l (flex rules section): Flag cpp directive from + any `#' to the first unescaped end-of-line. Semicolon is not + needed after `;', `{', '}', or cpp directives and is needed after + any other token (whitespaces and comments have no effect). + * tests/actions.at (Fix user actions without a trailing semicolon): + New test. + * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to + to make user actions complete statements. + Adjust column numbers in error messages. + * tests/regression.at (Fix user actions without a trailing semicolon): + Remove. Covered by new test. + +2008-12-07 Akim Demaille + + Update gnulib. + * gnulib: Update from master. + 2008-12-05 Eric Blake + Avoid compiler warning. + * src/output.c (muscle_insert_item_number_table): Delete unused + function. + +2008-12-02 Eric Blake + Build testsuite with newer autoconf. * tests/output.at (m4_expand): Don't override in newer autoconf, where the underlying implementation changed. @@ -3208,69 +3874,1383 @@ (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings, since some of them contain unbalanced ')'. -2008-11-19 Joel E. Denny +2008-12-01 Akim Demaille - * NEWS: Clarify a little. + Use b4_symbol for printers and destructors everywhere. + * data/bison.m4 (b4_symbol_action_location): New. + * data/c.m4 (b4_symbol_actions): Remove. + Adjust all callers to use by b4_symbol_foreach and the corresponding + b4_symbol_printer/destructor macro. + * data/glr.cc: Adjust. + * data/lalr1.java: Adjust the %destructor sanity check. + * src/output.c (symbol_code_props_output): Remove, we no longer + need the b4_symbol_printers/destructors tables. -2008-11-19 Joel E. Denny +2008-12-01 Akim Demaille - * NEWS: Update for recent changes. + Use b4_symbol_case_. + * data/lalr1.cc, data/bison.m4 (b4_symbol_action): Use + b4_symbol_case_. -2008-11-18 Joel E. Denny +2008-12-01 Akim Demaille - Fix unexpanded macros in GLR defines file. - Reported by Csaba Raduly at - . - * THANKS (Csaba Raduly): Add. - * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc. - * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate - lexer in a separate module that includes the defines file. - (AT_CHECK_CALC): Use AT_FULL_COMPILE and request compilation of lexer - source. - * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF. - Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX. - (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF. - (AT_DATA_SOURCE_PROLOGUE): New. - (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE. - (AT_DATA_SOURCE): New. - (AT_FULL_COMPILE): New, copied from master branch and extended to - support an additional source file. + Move b4_symbol based macro to bison.m4. + * data/lalr1.cc (b4_symbol_, b4_symbol, b4_symbol_if) + (b4_symbol_action, b4_symbol_destructor, b4_symbol_printer) + (b4_symbol_case_, b4_symbol_foreach, b4_type_action_) + (b4_type_foreach): Move to... + * data/bison.m4: Here. + * data/lalr1.cc (b4_symbol_action): Specialize for C++: use + b4_symbol_value_template instead of b4_symbol_value. -2008-11-17 Joel E. Denny +2008-12-01 Akim Demaille - Don't let maintainer-*-check targets force a version update. - * cfg.mk (_is-dist-target): Implement. maintainer-check* was already - handled. + b4_symbol/type_foreach. + * data/lalr1.cc (b4_symbol_foreach, b4_type_foreach): New. + Use them. -2008-11-17 Di-an Jan +2008-12-01 Akim Demaille + + Use the symbol properties to output the printer/destructor for lalr1.cc. + Instead of defining complex list of tuples to define various + properties of the symbols, we now prefer to define symbols as + "structs" in m4: using the symbol key (its number), and the + property name, b4_symbol gives it value. Use this to handle + destructors and printers. + + * src/output.c (CODE_PROP): New. + (prepare_symbol_definitions): Use it to define the printer and + destructor related attributes of the symbols. + * data/lalr1.cc (b4_symbol_actions): Rename as... + (b4_symbol_action): this. + Use b4_symbol instead of 6 arguments. + (b4_symbol_printer, b4_symbol_destructor): New. + Use them instead of b4_symbol_actions. + +2008-12-01 Akim Demaille + + Avoid capturing variables too easily. + * src/muscle_tab.h (MUSCLE_INSERT_BOOL, MUSCLE_OBSTACK_SGROW): Use + v__ and p__ instead of v and p. + +2008-12-01 Akim Demaille + + Remove spurious empty line before syncline. + * data/bison.m4 (b4_syncline): Don't output an empty line before + the output. + +2008-11-26 Akim Demaille + + Convert lib/Makefile.am into lib/local.mk. + The real problem is rather gnulib.mk, which itself is extracted + from a Makefile.am that gnulib expects to the "recursive". The + tool prefix-gnulib-mk converts such a gnulib.mk to be + non-recursive. Also, some AC_SUBST variables need to be adjusted. + + * etc/prefix-gnulib-mk: New. + * bootstrap (slurp): Use it to convert further gnulib.mk. + No longer try to avoid re-creation of lib/gnulib.mk as the changes + are deeper. + * lib/Makefile.am: Rename as... + * lib/local.mk: this. + Adjust to be prefixed. + * Makefile.am, configure.ac: Adjust. + * src/local.mk (AM_CPPFLAGS): Extend it, don't define it. + +2008-11-26 Akim Demaille + + s/_FLAGS/FLAGS/. + * tests/local.mk (TESTSUITE_FLAGS, AUTOTEST_FLAGS): Rename as... + (TESTSUITEFLAGS, AUTOTESTFLAGS): these to compy with the GCS. + Reported by Eric Blake. - * doc/bison.texinfo: Synchronize ``Detail Node Listing''. - Align menus. Adjust word wrapping. Use node names for menu names. - (Examples): Don't abbreviate node names. - (LocalWords): Remove abbreviations. - (Copying): Make description a sentence. - (Java Action Features): Remove period to match the rest of menu. +2008-11-26 Akim Demaille + + Use b4_parser_tables_define in glr.cc. + * data/glr.c: Use b4_parser_tables_define instead of defining the + (deterministic integral) tables by hand. + +2008-11-26 Akim Demaille + + Use b4_parser_tables_define in Java. + * data/java.m4 (b4_typed_parser_table): Rename as... + (b4_typed_parser_table_define): this, for consistency. + Accept a comment as $4. + Move $2 into yy*_. + (b4_integral_parser_table): Rename as... + (b4_integral_parser_table_define): this. + * data/lalr1.java: Adjust all uses. + Use b4_parser_tables_define instead of generation by hand. + +2008-11-26 Akim Demaille + + Prepare the convergence bw C style and Java table generation. + * data/bison.m4 (b4_tables_map, b4_tables_declare) + (b4_tables_define): Rename as... + (b4_integral_parser_tables_map, b4_parser_tables_declare) + (b4_parser_tables_define): these. + * data/c.m4 (b4_table_define): Rename as... + (b4_integral_parser_table_define): this. + * data/lalr1.cc: Adjust. + (b4_table_define, b4_table_declare): Rename as... + (b4_integral_parser_table_define) + (b4_integral_parser_table_declare): these. + (yyrline_): Move the comment where it is actually used. + * data/yacc.c: Adjust. + (yyrline): Use b4_integral_parser_table_define. + +2008-11-26 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. + +2008-11-26 Akim Demaille + + Factor the generation of the (integral) tables bw yacc.c and lalr1.cc. + * data/lalr1.cc (b4_tables_map): Move to... + * data/bison.m4: here. + Update the comment for yytable during the flight. + (b4_tables_declare, b4_tables_define): New. + * data/lalr1.cc: Use them. + * data/c.m4 (b4_table_define): New. + * data/yacc.c: Use b4_tables_define instead of output the tables + by hand. + * tests/regression.at (Web2c Actions): Adjust the expected output, + the order of the tables changed. + +2008-11-26 Akim Demaille + + Get rid of (yy)rhs and (yy)prhs. + These tables are no longer needed in the parsers, and they don't seem to + be useful. They are not documented either. + + * src/output.c (prepare_rules): Get rid of rhs and prhs. + Adjust the computation of (yy)r2. + +2008-11-26 Akim Demaille + + Rule length is unsigned. + * src/gram.h, src/gram.c (rule_rhs_length): Return a size_t. + +2008-11-26 Akim Demaille + + Get rid of lalr1-split.cc. + It was no longer maintainer. + + * data/lalr1-split.cc: Remove. + * etc/bench.pl.in (bench_fusion_parser): Remove. + Adjust. -2008-11-11 Paolo Bonzini +2008-11-26 Akim Demaille - * bootstrap.conf: Replace m4/warning.m4 with warnings module. - * configure.ac: Adjust usage. - * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS). - * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS). - * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS). + Use yy* consistently. + * data/glr.c: Now that yyrhs no longer exists as a global + variable, rename local "rhs" variables into "yyrhs" for + consistency. -2008-11-07 Joel E. Denny +2008-11-25 Akim Demaille - Don't add a semicolon to actions for %skeleton or %language. - It breaks Java test cases as reported by Akim Demaille. - * src/scan-code.l: Implement. + Get rid of yyrhs and yyprhs in glr.c. + * data/glr.c (yyrhs, yyprhs): Remove. + Instead, use the state stack and yystos. -2008-11-07 Joel E. Denny +2008-11-25 Akim Demaille - Clean up %skeleton and %language priority implementation. - * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and - remove static qualifier because others will soon need to see it. - (language_prio): Likewise. + Flag glr tests. + * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): If glr, declare it + as an Autotest keyword. + +2008-11-25 Akim Demaille + + Prefer TESTSUITE_FLAGS. + TESTSUITEFLAGS is barely readable. + + * tests/local.mk (TESTSUITE_FLAGS): Default to $(TESTSUITEFLAGS) + for backward compatibility. + Use the former instead of the latter. + +2008-11-25 Akim Demaille + + Get rid of yyrhs and yyprhs in larl1.java. + * data/lalr1.java (yyrhs_, yyprhs_): Remove. + (yy_reduce_print): Rather, use yystos_ and the state stack. + +2008-11-25 Akim Demaille + + Formatting changes. + +2008-11-25 Akim Demaille + + Get rid of yyrhs and yyprhs in yacc.c. + They were used to get the symbol types, given a rule number, when + displaying the top of the stack before a reduction. But the + symbol type is available from the state stack. This has two be + benefits: two tables less in the parser (making it smaller), and a + more consistent use of the three stacks which will help to fuse + them. + + * data/yacc.c (yyprhs, yyrhs): Remove. + (YY_REDUCE_PRINT): Pass yyssp to yy_reduce_print. + (yy_reduce_print): Take yyssp as argument. + Use it, together with yystos, to get the symbol type. + * tests/regression.at (Web2c Report): Remove these tables from the + expected output. + +2008-11-25 Akim Demaille + + b4_tables_map. + The point is to factor the generation of the tables across skeletons. + This is language dependant. + + * data/c.m4 (b4_comment_): New. + Should be usable to define how to generate tables independently of + the language. + (b4_c_comment): New. + (b4_comment): Bounce to b4_c_comment. + Now support $2 = [PREFIX] for indentation. + * data/lalr1.cc (b4_table_declare): Don't output a comment if + there is no comment. + Indent it properly when there is one. + Output the ending semicolon. + (b4_table_define): Space changes. + Output the ending semicolon. + (b4_tables_map): New. + Use it twice instead of declaring and defining the (integral) + tables by hand. + +2008-11-25 Akim Demaille + + b4_table_declare. + * data/lalr1.cc (b4_table_declare): New. + Use it to declare the tables defined with b4_table_define. + (b4_table_define): Declare a third arg to match b4_table_declare + signature. + Move all the comments around invocations of b4_table_define into + the invocations itselves. + Move things around to have the order for declarations and + definitions. + +2008-11-25 Akim Demaille + + Formatting changes. + * data/lalr1.java: here. + +2008-11-25 Akim Demaille + + b4_args is more general than only C++. + * data/lalr1.cc (b4_args, _b4_args): Move to... + * data/bison.m4: here. + +2008-11-21 Di-an Jan + + Implement no-XXX arguments for --warnings, --report, --trace. + * src/getargs.c (flags_argmatch): Handles no-XXX. + Fix typo in doxygen comment. + +2008-11-21 Akim Demaille + + Display the changes in cross-options.texi. + * build-aux/cross-options.pl ($sep): New, to separate items. + * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Use diff to display the + changes. + +2008-11-20 Di-an Jan + + Improves options in the manual. + * doc/bison.texinfo (-g, -x): Add space before argument. + (Option Cross Key): Implement FIXME: listing directives also. + * build-aux/cross-options.pl: Read from rather than <>. + (Short Option): Special case -d. Put arguments inside @option. + (Bison Directive): Add column, automatically extracted from + src/scan-gram.l (actual name passed as the first argument) + with special case for %define. + * doc/local.mk (doc/cross-options.texi): Pass src/scan-gram.l + to build-aux/cross-options.pl. + * src/getargs.c (usage): Document limitations of cross-options.pl. + * src/scan-gram.l: Likewise. + +2008-11-18 Joel E. Denny + + Fix unexpanded macros in GLR defines file. + Reported by Csaba Raduly at + . + * THANKS (Csaba Raduly): Add. + * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc. + * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate + lexer in a separate module that includes the defines file. + (AT_CHECK_CALC): From AT_FULL_COMPILE, request compilation of lexer + source. + * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF. + Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX. + (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF. + (AT_DATA_SOURCE_PROLOGUE): New. + (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE. + (AT_DATA_SOURCE): New. + (AT_FULL_COMPILE): Extend to support an additional source file. + +2008-11-18 Akim Demaille + + More TODO. + * TODO: More short term issues. + +2008-11-18 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. + +2008-11-18 Akim Demaille + + Use b4_subtract where possible. + * data/lalr1.cc (b4_subtract): Move to... + * data/bison.m4: here. + * data/glr.c (b4_rhs_data): Use it. + * data/yacc.c (b4_rhs_value, b4_rhs_location): Use it. + +2008-11-18 Akim Demaille + + Remove incorrect mode specification. + * data/glr.cc: Don't pretend it's C code. + +2008-11-17 Joel E. Denny + + Simplify last patch slightly. + * src/getargs.c (getargs): Here. + +2008-11-17 Joel E. Denny + + Fix last warning from --enable-gcc-warnings. + * src/getargs.c (getargs): Don't assign const address to non-const + pointer. + +2008-11-17 Joel E. Denny + + Don't let maintainer-*-check targets force a version update. + * cfg.mk (_is-dist-target): Implement. maintainer-check* was already + handled. + +2008-11-17 Di-an Jan + + * doc/bison.texinfo: Synchronize ``Detail Node Listing''. + Align menus. Adjust word wrapping. Use node names for menu names. + (Examples): Don't abbreviate node names. + (LocalWords): Remove abbreviations. + (Copying): Make description a sentence. + (Java Action Features): Remove period to match the rest of menu. + +2008-11-17 Di-an Jan + + Handles several --enable-gcc-warnings. + * src/getargs.c (command_line_location): Set parameters to void. + * src/output.c (symbol_type_name_cmp): Make static. + (symbols_by_type_name): Set parameters to void. + (symbol_definitions_output): Remove unused parameter. Rename as... + (prepare_symbol_definitions): this. + (muscles_output): Move symbol_definitions_output to... + (output): here as prepare_symbol_definitions. + * tests/c++.at (AT_CHECK_VARIANTS): Remove unused parameters of main. + (AT_CHECK_NAMESPACE): Make unused parameter lloc unnamed. + +2008-11-17 Di-an Jan + + * tests/c++.at (AT_CHECK_VARIANTS): Fixes tests 198-202. + Use AT_DATA_GRAMMAR instead of AT_DATA for compiled tests. + +2008-11-16 Akim Demaille + + Add missing $(EXEEXT). + * doc/local.mk ($(CROSS_OPTIONS_TEXI)): The target is + "src/bison$(EXEEXT)". + Reported by Di-an Jan. + +2008-11-15 Akim Demaille + + * TODO: Update. + +2008-11-15 Akim Demaille + + Formatting changes. + * tests/input.at: here. + +2008-11-15 Akim Demaille + + Remove duplicate header inclusion. + * src/LR0.c: here. + +2008-11-15 Akim Demaille + + * src/parse-gram.h, src/parse-gram.c: Regen. + +2008-11-15 Akim Demaille + + Support parametric types. + + There are two issues to handle: first scanning nested angle + bracket pairs to support types such as std::pair< std::string, + std::list > >. + + Another issue is to address idiosyncracies of C++: do not glue two + closing angle brackets together (otherwise it's operator>>), and + avoid sticking blindly a TYPE to the opening <, as it can result + in '<:' which is a digraph for '['. + + * src/scan-gram.l (brace_level): Rename as... + (nesting): this. + (SC_TAG): New. + Implement support for complex tags. + (tag): Accept + , but not <. + * data/lalr1.cc (b4_symbol_value, b4_symbol_value_template) + (b4_symbol_variant): Leave space around types as parameters. + * examples/variant.yy: Use nested template types and leading ::. + * src/parse-gram.y (TYPE, TYPE_TAG_ANY, TYPE_TAG_NONE, type.opt): + Rename as... + (TAG, TAG_ANY, TAG_NONE, tag.opt): these. + * tests/c++.at: Test parametric types. + +2008-11-15 Akim Demaille + + Test token.prefix. + This is not sufficient, but we test at least that the make_SYMBOL + interface is not affected by token.prefix. A more general test + will be implemented when the support of token.prefix is generalized + to more skeletons. + + * tests/c++.at: One more variant test, using token.prefix. + +2008-11-15 Akim Demaille + + Test the make_TOKEN interface. + * tests/c++.at (AT_CHECK_VARIANTS): Require and use locations. + Factor the common code in yylex. + Use it to test "%define lex_symbol". + +2008-11-15 Akim Demaille + + Formatting change. + +2008-11-15 Akim Demaille + + Simplify code for variants bench marks. + * etc/bench.pl.in (&generate_grammar_list): Define and use + location_type. + Factor the common code in yylex. + +2008-11-15 Akim Demaille + + Better error message. + * bootstrap (find_tool): Fix the error message. + +2008-11-15 Akim Demaille + + Update variant.yy to newest interface. + * examples/variant.yy: Define lex_symbol. + Adjust. + +2008-11-15 Akim Demaille + + Don't use locations in variant.yy. + * examples/variant.yy: Adjust to not using locations. + +2008-11-15 Akim Demaille + + Comment changes. + * data/local.mk, etc/local.mk, examples/local.mk: Use Automake + comments for the license. + +2008-11-15 Akim Demaille + + Remove tests/Makefile.am. + * tests/Makefile.am: Rename as... + * tests/local.mk: this. + * Makefile.am, configure.ac: Adjust. + * Makefile.am (DISTCLEANFILES): Define. + (maintainer-check, maintainer-xml-check, maintainer-push-check): + Remove, we no longer need to bounce to the real targets. + +2008-11-15 Akim Demaille + + Comment changes. + +2008-11-15 Akim Demaille + + djgpp/local.mk. + * Makefile.am (EXTRA_DIST): Move djgpp related part to... + * djgpp/local.mk: this new file. + +2008-11-15 Akim Demaille + + Remove doc/Makefile.am. + * doc/Makefile.am: Rename as... + * doc/local.mk: this. + Adjust paths + * Makefile.am, configure.ac: Adjust. + * Makefile.am (MOSTLYCLEANFILES): New. + * src/local.mk: Adjust. + +2008-11-15 Akim Demaille + + Move sc_tight_scope into maint.mk. + It does not work, and I don't know how it was supposed to work: it + seems to be looking for sources in the build tree. I just moved + it at a better place, fixing it is still required. + + * src/local.mk (echo): Remove. + (sc_tight_scope): Move to... + * maint.mk: here. + +2008-11-15 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.h: Regen. + +2008-11-15 Akim Demaille + + Remove src/Makefile.am. + * src/Makefile.am: Rename as... + * src/local.mk: this. + Prefix all the paths with src/. + (AUTOMAKE_OPTIONS): Build object files in the sub dirs. + (AM_CPPFLAGS): Find find in builddir/src. + (YACC): Move the flags into... + (AM_YFLAGS): here. + * maint.mk (sc_tight_scope): Disable. + It used to bounce to the version in src/Makefile.am which is now + part of this very Makefile. + * Makefile.am, configure.ac: Adjust. + * src/scan-code-c.c, src/scan-code.l: We can no longer rely on + include "..." to find files "here": we are no longer in src/, so + qualify the includes with src/. + * doc/Makefile.am (PREPATH): No longer include the top_builddir + prefix. + (.x.1): Adjust to be able to create src/foo from the top level + Makefile, instead of going bounce to src/Makefile the creation of + foo. + +2008-11-15 Akim Demaille + + Remove useless variable. + * doc/Makefile.am (srcsrcdir): Remove. + +2008-11-15 Akim Demaille + + Remove data/Makefile.am. + * data/Makefile.am: Rename as... + * data/local.mk: this. + Adjust paths. + * Makefile.am, configure.ac: Adjust. + +2008-11-15 Akim Demaille + + Remove etc/Makefile.am. + * etc/Makefile.am: Rename as... + * etc/local.mk: this. + Adjust. + * Makefile.am, configure.ac: Adjust. + +2008-11-15 Akim Demaille + + Remove examples/local.mk. + examples/calc++/Makefile.am might be interesting to keep as is, since + it is an example in itself. + + * examples/Makefile.am: Rename as... + * examples/local.mk: this. + Adjust. + * Makefile.am, configure.ac: Adjust. + +2008-11-15 Akim Demaille + + Remove build-aux/Makefile.am. + Recursive Makefiles are really way too slow, let's get rid of some of + them. + + * build-aux/Makefile.am: Rename as... + * build-aux/local.mk: this. + Adjust paths. + * Makefile.am, configure.ac: Adjust. + +2008-11-15 Akim Demaille + + Provide convenience constructors for locations and positions. + * data/location.cc (position::position): Accept file, line and + column as arguments with default values. + Always qualify initial line and column literals as unsigned. + (location::location): Provide convenience constructors. + +2008-11-15 Akim Demaille + + Instead of using make_symbol, generate make_FOO for each + token type. + Using template buys us nothing, and makes it uselessly complex to + construct a symbol. Besides, it could not be generalized to other + languages, while make_FOO would work in C/Java etc. + + * data/lalr1.cc (b4_symbol_): New. + (b4_symbol): Use it. + (b4_symbol_constructor_declaration_) + (b4_symbol_constructor_definition_): Instead of generating + specializations of an overloaded template function, just generate + several functions whose names are forged from the token names + without the token.prefix. + (b4_symbol_constructor_declarations): Generate them for all the + symbols, not just by class of symbol type, now that instead of + specializing a function template by the token, we generate a + function named after the token. + (b4_symbol_constructor_specialization_) + (b4_symbol_constructor_specializations): Remove. + * etc/bench.pl.in: Adjust to this new API. + +2008-11-13 Akim Demaille + + %define token.prefix. + Provide a means to add a prefix to the name of the tokens as + output in the generated files. Because of name clashes, it is + good to have such a prefix such as TOK_ that protects from names + such as EOF, FILE etc. But it clutters the grammar itself. + + * data/bison.m4 (token.prefix): Empty by default. + * data/c.m4 (b4_token_enum, b4_token_define): Use it. + * data/lalr1.cc (b4_symbol): Ditto. + +2008-11-13 Akim Demaille + + Compute at M4 time some of the subtractions. + * data/lalr1.cc (b4_subtract): New. + (b4_rhs_data): Use it. + +2008-11-13 Akim Demaille + + symbol::token. + This allows the user to get the type of a token returned by yylex. + + * data/lalr1.cc (symbol::token): New. + (yytoknum_): Define when %define lex_symbol, independently of + %debug. + (yytoken_number_): Move into... + (symbol::token): here, since that's the only use. + The other one is YYPRINT which was not officially supported + by lalr1.cc, and anyway it did not work since YYPRINT uses this + array under a different name (yytoknum). + +2008-11-13 Akim Demaille + + YYERRCODE. + * TODO (YYERRCODE): Mention the case of $undef. + +2008-11-13 Akim Demaille + + TODO: YYPRINT. + * TODO (YYPRINT): New. + +2008-11-13 Akim Demaille + + Comment changes. + * data/lalr1.cc, data/yacc.c: Fix the description of the + yytranslate and yytoknum tables. + +2008-11-13 Akim Demaille + + Define make_symbol in the header. + To reach good performances these functions should be inlined (yet + this is to measure precisely). To this end they must be available + to the caller. + + * data/lalr1.cc (b4_symbol_constructor_definition_): Qualify + location_type with the class name. + Since will now be output in the header, declare "inline". + No longer use b4_symbol_constructor_specializations, but + b4_symbol_constructor_definitions in the header. + Don't call it in the *.cc file. + +2008-11-13 Akim Demaille + + Define yytranslate in the header for lex_symbol. + * data/lalr1.cc: Move the invocation of b4_yytranslate_definition + into the header file when using %define lex_symbol. + (yytranslate_): Declare inline. + +2008-11-13 Akim Demaille + + Define the constructors of symbol_type in + b4_symbol_constructor_definitions. + The constructors are called by the make_symbol functions, which a + forthcoming patch will move elsewhere. Hence the interest of + putting them together. + + The stack_symbol_type does not need to be moved, it is used only + by the parser. + + * data/lalr1.cc: Move symbol_type and symbol_base_type + constructors into... + (b4_symbol_constructor_definitions): here. + Adjust. + +2008-11-13 Akim Demaille + + Make it easier to move the definition of yytranslate_. + Forthcoming changes will make it possible to use yytranslate_ + from outside the parser implementation file. + + * data/lalr1.cc (b4_yytranslate_definition): New. + Use it. + +2008-11-13 Akim Demaille + + Remove useless class specification. + * data/lalr1.cc (b4_symbol_constructor_specialization_): No need + to refer to the class name to use a type defined by the class for + arguments of member functions. + +2008-11-13 Akim Demaille + + Finer input type for yytranslate. + This patch is debatable: the tradition expects yylex to return an int + which happens to correspond to token_number (which is an enum). This + allows for instance to return characters (such as '*' etc.). But this + goes against the stronger typing I am trying to have with the new + lex interface which return a symbol_type. So in this case, feed + yytranslate_ with a token_type. + + * data/lalr1.cc (yytranslate_): When in %define lex-symbol, + expect a token_type. + +2008-11-13 Akim Demaille + + Honor lex-params in %define lex_symbol mode. + * data/lalr1.cc: Use b4_lex_param. + +2008-11-13 Akim Demaille + + Simplify names. + * src/output.c (symbol_definitions_output): Rename symbol + attributes type_name and has_type_name as type and has_type. + * data/lalr1.cc: Adjust uses. + +2008-11-13 Akim Demaille + + Use b4_type_names for the union type. + The union used to compute the size of the variant used to iterate + over the type of all the symbols, with a lot of redundancy. Now + iterate over the lists of symbols having the same type-name. + + * data/lalr1.cc (b4_char_sizeof_): New. + (b4_char_sizeof): Use it. + Adjust to be called with a list of numbers instead of a single + number. + Adjust its caller for new-line issues. + +2008-11-13 Akim Demaille + + Define the "identifier" of a symbol. + Symbols may have several string representations, for instance if + they have an alias. What I call its "id" is a string that can be + used as an identifier. May not exist. + + Currently the symbols which have the "tag_is_id" flag set are + those that don't have an alias. Look harder for the id. + + * src/output.c (is_identifier): Move to... + * src/symtab.c (is_identifier): here. + * src/symtab.h, src/symtab.c (symbol_id_get): New. + * src/output.c (symbol_definitions_output): Use it to define "id" + and "has_id". + Remove the definition of "tag_is_id". + * data/lalr1.cc: Use the "id" and "has_id" whereever "tag" and + "tag_is_id" were used to produce code. + We still use "tag" for documentation. + +2008-11-11 Akim Demaille + + Locations are no longer required by lalr1.cc. + * data/lalr1.cc (_b4_args, b4_args): New. + Adjust all uses of locations to make them optional. + * tests/c++.at (AT_CHECK_VARIANTS): No longer use the locations. + (AT_CHECK_NAMESPACE): Check the use of locations. + * tests/calc.at (_AT_DATA_CALC_Y): Adjust to be usable with or + without locations with lalr1.cc. + Test these cases. + * tests/output.at: Check lalr1.cc with and without location + support. + * tests/regression.at (_AT_DATA_EXPECT2_Y, _AT_DATA_DANCER_Y): + Don't use locations. + +2008-11-11 Akim Demaille + + AT_FULL_COMPILE. + * tests/local.at (AT_FULL_COMPILE): New. + * tests/actions.at, tests/calc.at, tests/regression.at: Use it. + +2008-11-11 Akim Demaille + + Support parens in calc++. + * doc/bison.texinfo (Calc++ Scanner, Calc++ Parser): Support parens. + * examples/calc++/test (run): Check the expected output. + Adjust callers. + Check parens too. + +2008-11-11 Akim Demaille + + Simplify lalr1.cc since %defines is mandatory. + * data/lalr1.cc: Remove useless calls to b4_defines_if. + +2008-11-11 Akim Demaille + + TODO: yyfmt. + * TODO (yysyntax_error): New item. + +2008-11-11 Akim Demaille + + Prefer M4 to CPP. + * data/lalr1.cc: Use b4_error_verbose_if instead of #if + YYERROR_VERBOSE. + +2008-11-11 Akim Demaille + + Support i18n of the parse error messages. + * TODO (lalr1.cc/I18n): Remove. + * data/lalr1.cc (yysyntax_error_): Support the translation of the + error messages, as done in yacc.c. + Stay within the yy* pseudo namespace. + +2008-11-11 Akim Demaille + + More TODO. + * TODO (single stack, yysyntax_error): New. + +2008-11-11 Akim Demaille + + Make it possible to return a symbol_type from yylex. + * data/lalr1.cc (b4_lex_symbol_if): New. + (parse): When lex_symbol is defined, expected yylex to return the + complete lookahead. + * etc/bench.pl.in (generate_grammar_list): Extend to support this + yylex interface. + (bench_variant_parser): Exercise it. + +2008-11-11 Akim Demaille + + Remove useless bench case. + * etc/bench.pl.in (bench_variant_parser): VARIANT_DESTROY is + no longer used. + +2008-11-11 Akim Demaille + + Improve display of directives. + * etc/bench.pl.in (parse_term): Don't add useless eol. + +2008-11-11 Akim Demaille + + Use string_cast in the bench. + * etc/bench.pl.in (generate_grammar_list): Define and use + string_cast. + +2008-11-11 Akim Demaille + + Replace yychar with a Boolean. + * data/lalr1.cc (parse::yychar): Replace by... + (parse::yyempty): this. + +2008-11-11 Akim Demaille + + Factor the tables. + * TODO: New item. + +2008-11-11 Akim Demaille + + Let yytranslate handle the eof case. + * data/lalr1.cc (yytranslate_): Handle the EOF case. + Adjust callers. + No longer expect yychar to be equal to yyeof_, rather, test the + lookahead's (translated) kind. + +2008-11-11 Akim Demaille + + yychar cannot be empty in yyerrlab. + * TODO (yychar == yyempty_): New. + * data/lalr1.cc: Remove the handling of this case. + This eases forthcoming changes related to yychar and yytranslate. + +2008-11-11 Akim Demaille + + Bench: syntactic sugar for %define/#define. + * etc/bench.pl.in (parse_dirs): Support %d and #d with arguments. + (&bench_push_parser, bench_variant_parser): Use this feature. + (&eat): New. + Use it. + +2008-11-11 Akim Demaille + + Less memory pressure on the "list" bench. + * etc/bench.pl.in (generate_grammar_list): Do not accumulate all + the values, to limit memory pressure. + +2008-11-11 Akim Demaille + + Introduce make_symbol. + make_symbol provides a means to construct a full symbol (kind, + value, location) in a single shot. It is meant to be a Symbol + constructor, parameterized by the symbol kind so that overloading + would prevent incorrect kind/value pairs. Unfortunately + parameterized constructors do not work well in C++ (unless the + parameter also appears as an argument, which is not acceptable), + hence the use of a function instead of a constructor. + + * data/lalr1.cc (b4_symbol_constructor_declaration_) + (b4_symbol_constructor_declarations) + (b4_symbol_constructor_specialization_) + (b4_symbol_constructor_specializations) + (b4_symbol_constructor_definition_) + (b4_symbol_constructor_definitions): New. + Use them where appropriate to generate declaration, declaration of + the specializations, and implementations of the templated + overloaded function "make_symbol". + (variant::variant): Always define a default ctor. + Also provide a copy ctor. + (symbol_base_type, symbol_type): New ctor overloads for value-less + symbols. + (symbol_type): Now public, so that functions such as yylex can use + it. + +2008-11-11 Akim Demaille + + Inform m4 whether a tag is a valid id. + * src/output.c (is_identifier): New. + (symbol_definitions_output): Use it to define tag_is_id. + But maybe this should be done at m4 level? + +2008-11-11 Akim Demaille + + Test 214 was failing: it greps with a pattern containing [ ]* + which obviously meant to catch spaces and tabs, but contained only + spaces. Tabulations in sources are a nuisance, so to simplify the + matter, get rid of all the tabulations in the Java sources. The + other skeletons will be treated equally later. + + * data/java.m4, data/lalr1.java: Untabify. + * tests/java.at: Simplify AT_CHECK_JAVA_GREP invocations: + tabulations are no longer generated. + +2008-11-11 Paolo Bonzini + + * bootstrap.conf: Replace m4/warning.m4 with warnings module. + * configure.ac: Adjust usage. + * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS). + * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS). + * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS). + +2008-11-10 Di-an Jan + + Workaround Java's ``code too large'' problem for parser tables + in most cases, by using one function per initialization. + * data/java.m4 (b4_typed_parser_table, b4_integral_parser_table): New. + * data/lalr1.java (yypact_, yydefact_, yypgoto_, yydefgoto_, + yytable_, yycheck_, yystos_, yytoken_number_, yyr1_, yyr2_, yyrhs_ + yyprhs_, yyrline_, yytranslate_table_): Use b4_integral_parser_table. + (yytname_): Use b4_typed_parser_table. + * doc/bison.texinfo (Java Bison Interface): Add note on Java's + ``code too large'' error. + +2008-11-10 Di-an Jan + + * NEWS: Document them. + + General Java skeleton improvements. + * configure.ac (gt_JAVACOMP): Request target of 1.4, which allows + using gcj < 4.3 in the testsuite, according to comments in + gnulib/m4/javacomp.m4. + * data/java.m4 (stype, parser_class_name, lex_throws, throws, + location_type, position_type): Remove extraneous brackets from + b4_percent_define_default. + (b4_lex_param, b4_parse_param): Remove extraneous brackets from + m4_define and m4_define_default. + * data/lalr1.java (b4_pre_prologue): Change to b4_user_post_prologue, + which marks the end of user code with appropriate syncline, like all + the other skeletons. + (b4_user_post_prologue): Add. Don't silently drop. + (yylex): Remove. + (parse): Inline yylex. + * doc/bison.texinfo (bisonVersion, bisonSkeleton): Document. + (%{...%}): Fix typo of %code imports. + * tests/java.at (AT_JAVA_COMPILE): Add "java" keyword. + + Support annotations on parser class with %define annotations. + * data/lalr1.java (annotations): Add to parser class modifier. + * doc/bison.texinfo (Java Parser Interface): Document + %define annotations. + (Java Declarations Summary): Document %define annotations. + * tests/java.at (Java parser class modifiers): Test annotations. + + Do not generate code for %error-verbose unless requested. + * data/lalr1.java (errorVerbose): Rename to yyErrorVerbose. + Make private. Make conditional on %error-verbose. + (getErrorVerbose, setErrorVerbose): New. + (yytnamerr_): Make conditional on %error-verbose. + (yysyntax_error): Make some code conditional on %error-verbose. + * doc/bison.texinfo (Java Bison Interface): Remove the parts + about %error-verbose having no effect. + (getErrorVerbose, setErrorVerbose): Document. + + Move constants for token names to Lexer interface. + * data/lalr1.java (Lexer): Move EOF, b4_token_enums(b4_tokens) here. + * data/java.m4 (b4_token_enum): Indent for move to Lexer interface. + (parse): Qualify EOF to Lexer.EOF. + * doc/bison.texinfo (Java Parser Interface): Move documentation of + EOF and token names to Java Lexer Interface. + * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove Calc qualifier. + + Make yyerror public. + * data/lalr1.java (Lexer.yyerror): Use longer parameter name. + (yyerror): Change to public. Add Javadoc comments. Use longer + parameter names. Make the body rather than the declarator + conditional on %locations. + * doc/bison.texinfo (yyerror): Document. Don't mark as protected. + + Allow user to add code to the constructor with %code init. + * data/java.m4 (b4_init_throws): New, for %define init_throws. + * data/lalr1.java (YYParser.YYParser): Add b4_init_throws. + Add %code init to the front of the constructor body. + * doc/bison.texinfo (YYParser.YYParser): Document %code init + and %define init_throws. + (Java Declarations Summary): Document %code init and + %define init_throws. + * tests/java.at (Java %parse-param and %lex-param): Adjust grep. + (Java constructor init and init_throws): Add tests. + +2008-11-10 Akim Demaille + + Update TODO. + * TODO (-D): is implemented. + (associativity): Same precedence must have the same associativity. + For instance, how can a * b / c be parsed if * is %left and / is + %right? + (YYERRORCODE, YYFAIL, YYBACKUP): New. + +2008-11-10 Akim Demaille + + Formatting changes. + +2008-11-10 Akim Demaille + + More information about the symbols. + * src/output.c (type_names_output): Document all the symbols, + including those that don't have a type-name. + (symbol_definitions_output): Define "is_token" and + "has_type_name". + * data/lalr1.cc (b4_type_action_): Skip symbols that have an empty + type-name, now that they are defined too in b4_type_names. + +2008-11-10 Akim Demaille + + Regen. + +2008-11-10 Akim Demaille + + Make parser::yytranslate static. + Small speedup (1%) on the list grammar. And makes yytranslate_ + available in non member functions. + + * data/lalr1.cc (yytranslate_): Does not need to be a instance + function. + +2008-11-10 Akim Demaille + + Avoid trailing spaces. + * data/c.m4: b4_comment(TEXT): Don't indent empty lines. + * data/lalr1.cc: Don't indent before rule and symbol actions, as + they can be empty, and anyway this incorrectly indents the first + action. + +2008-11-10 Akim Demaille + + Comment changes. + +2008-11-10 Akim Demaille + + Use "enum" for integral constants. + This is just nicer to read, I observed no speedup. + + * data/lalr1.cc (yyeof_, yylast_, yynnts_, yyempty_, yyfinal_) + (yterror_, yyerrcode_, yyntokens_): Define as members of an enum. + (yyuser_token_number_max_, yyundef_token_): Move into... + (yytranslate_): here. + +2008-11-10 Akim Demaille + + Shortcuts in bench directives. + * etc/bench.pl.in (parse_dirs): New. + Use it. + (bench_variant_parser, bench_fusion_parser): Use %s and %d. + Create the benches in "benches/". + +2008-11-10 Akim Demaille + + Formatting changes. + * data/lalr1.cc: here. + +2008-11-10 Akim Demaille + + Adjust verbose message to using emacs. + * etc/bench.pl.in: Inform compilation-mode when we change the + directory. + (generate_grammar_list): Recognize %define "variant" in addition + to %define variant. + +2008-11-10 Akim Demaille + + Classify symbols by type-name. + * src/uniqstr.h (UNIQSTR_CMP): New. + * src/output.c (symbol_type_name_cmp, symbols_by_type_name) + (type_names_output): New. + (muscles_output): Use it. + * data/lalr1.cc (b4_symbol_action_): Remove. + (b4_symbol_case_, b4_type_action_): New. + Adjust uses of b4_symbol_action_ to use b4_type_action_. + +2008-11-10 Akim Demaille + + Change the handling of the symbols in the skeletons. + Before we were using tables which lines were the symbols and which + columns were things like number, tag, type-name etc. It is was + difficult to extend: each time a column was added, all the numbers had + to be updated (you asked for colon $2, not for "tag"). Also, it was + hard to filter these tables when only a subset of the symbols (say the + tokens, or the nterms, or the tokens that have and external number + *and* a type-name) was of interest. + + Now instead of monolithic tables, we define one macro per cell. For + instance "b4_symbol(0, tag)" is a macro name which contents is + self-decriptive. The macro "b4_symbol" provides easier access to + these cells. + + * src/output.c (type_names_output): Remove. + (symbol_numbers_output, symbol_definitions_output): New. + (muscles_output): Call them. + (prepare_symbols): Define b4_symbols_number. + +2008-11-10 Akim Demaille + + --trace=muscles + * src/getargs.h, src/getargs.c (trace_muscle): New. + (trace_types, trace_args): Support it. + * src/output.c (output_skeleton): Use it. + +2008-11-10 Akim Demaille + + muscles_output. + * src/output.c (muscles_output): New, extracted from... + (output_skeleton): here. + Adjust. + +2008-11-10 Akim Demaille + + Formatting changes. + +2008-11-10 Akim Demaille + + Update the variant example. + * examples/variant.yy: Formatting changes. + One stage build. + +2008-11-10 Akim Demaille + + Support constructor with an argument. + This improves the "list" bench by 2%. + + * data/lalr1.cc (variant::build): Add an overloaded version with + an argument. + * tests/c++.at (AT_CHECK_VARIANT): Check it. + +2008-11-10 Akim Demaille + + Test variants. + * tests/c++.at (AT_CHECK_VARIANTS): New. + Use it with and without %define assert. + +2008-11-10 Akim Demaille + + Add %precedence support. + Unfortunately it is not possible to reuse the %prec directive. This + is because to please POSIX, we do not require to end the rules with a + semicolon. As a result, + + foo: bar %prec baz + + is ambiguous: either a rule which precedence is that of baz, or a rule, + and then a declaration of the precedence of the token baz. + + * doc/bison.texinfo: Document %precedence. + (Precedence Only): New. + * src/assoc.h, src/assoc.c (precedence_assoc): New. + * src/conflicts.c (resolve_sr_conflict): Support it. + * src/scan-gram.l, src/parse-gram.y (%precedence): New token. + Parse it. + * tests/calc.at: Use %precedence for NEG. + * tests/conflicts.at (%precedence does not suffice) + (%precedence suffices): New tests. + +2008-11-09 Akim Demaille + + Make benches in a sub dirs. + * etc/bench.pl.in ($dir): New. + Use it. + Check the use of constructors with an argument. + (bench_variant_parser): Fix. + +2008-11-09 Akim Demaille + + fix eof condition + +2008-11-09 Akim Demaille + + Fix --help. + +2008-11-09 Akim Demaille + + Require the generation of parse-gram.output. + * src/Makefile.am (YACC): Pass --report=all. + +2008-11-09 Akim Demaille + + Formatting changes. + +2008-11-09 Akim Demaille + + Update TODO. + * TODO: Remove obsolete items. + Update others. + +2008-11-09 Akim Demaille + + Enhance bench.pl. + * etc/bench.pl.in (parse, parse_expr, parse_term, parse_fact) + (@token, $grammar, $bench): New. + (generate_grammar_variant): Rename as... + (generate_grammar_list): this. + (generate_grammar): Adjust. + (bench_grammar): Rename as... + (bench): this. + Use it in the various bench-marking routines. + (-b, -g): New options. + +2008-11-09 Akim Demaille + + Use a static hierarchy for symbols in the C++ parser. + * data/lalr1.cc (symbol_base_type, symbol_type) + (stack_symbol_type): Make it a static hierarchy. + Adjust dependencies. + +2008-11-09 Akim Demaille + + bench.pl -d, --directive. + * etc/bench.pl.in (@directive): New. + (&bench_grammar): Use it. + (&bench_list_grammar): New, to provide access to the "variant" + grammar. + Use it. + (getopts): Support -d, --directive. + +2008-11-09 Akim Demaille + + Use inline for small operations. + * data/lalr1.cc (symbol_base_type, symbol_type) + (stack_symbol_type): Declare constructor and other operations as + inline. + (yy_destroy_): Inline. + +2008-11-09 Akim Demaille + + Introduce a hierarchy for symbols. + * data/lalr1.cc (symbol_base_type, symbol_type): New. + (data_type): Rename as... + (stack_symbol_type): this. + Derive from symbol_base_type. + (yy_symbol_value_print_): Merge into... + (yy_symbol_print_): this. + Rename as... + (yy_print_): this. + (yydestruct_): Rename as... + (yy_destroy_): this. + (b4_symbols_actions, YY_SYMBOL_PRINT): Adjust. + (parser::parse): yyla is now of symbol_type. + Use its type member instead of yytoken. + +2008-11-09 Akim Demaille + + Rename data_type and stack_symbol_type. + * data/lalr1.cc (data_type): Rename as... + (stack_symbol_type): this. + +2008-11-09 Akim Demaille + + Handle semantic value and location together. + * data/lalr1.cc (b4_symbol_actions): Bounce $$ and @$ to + yydata.value and yydata.location. + (yy_symbol_value_print_, yy_symbol_print_, yydestruct_) + (YY_SYMBOL_PRINT): Now take semantic value and location as a + single arg. + Adjust all callers. + (yydestruct_): New overload for a stack symbol. + +2008-11-09 Akim Demaille + + Push a complete symbol, not connected parts. + * data/lalr1.cc (yypush_): Take a data_type&, not disconnected + state, value and location. + Adjust callers. + +2008-11-09 Akim Demaille + + Agregate yylval and yylloc. + * data/lalr1.cc (parser::yylval, parser::yylloc): Replace by... + (parser::yyla): this. + +2008-11-09 Akim Demaille + + Rely on the state stack to display reduction traces. + To display rhs symbols before a reduction, we used information + about the rule reduced, which required the tables yyrhs and + yyprhs. Now use rely only on the state stack to get the same + information. + + * data/lalr1.cc (b4_rhs_data, b4_rhs_state): New. + Use them. + (parser::yyrhs_, parser::yyprhs_): Remove. + (parser::yy_reduce_print_): Use the state stack. + +2008-11-09 Akim Demaille + + Fuse yyval and yyloc into yylhs. + * data/lalr1.cc (b4_lhs_value, b4_lhs_location): Adjust to using + yylhs. + (parse): Replace yyval and yyloc with yylhs.value and + yylhs.location. + After a user action, compute yylhs.state earlier. + (yyerrlab1): Do not play tricks with yylhs.location, rather, use a + fresh error_token. + +2008-11-09 Di-an Jan + + Remove unused variable. + * src/output.c (type_names_output): Remove unused variable sep. + +2008-11-09 Paolo Bonzini + + Change tests/output.at quoting. + * tests/output.at (AT_CHECK_OUTPUT): Use conventional m4 quoting when + expanding arguments. + +2008-11-07 Joel E. Denny + + Don't add a semicolon to actions for %skeleton or %language. + It breaks Java test cases as reported by Akim Demaille. + * src/scan-code.l: Implement. + +2008-11-07 Joel E. Denny + + Clean up %skeleton and %language priority implementation. + * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and + remove static qualifier because others will soon need to see it. + (language_prio): Likewise. (getargs): Use command_line_prio rather than 0. * src/getargs.h (command_line_prio, grammar_prio, default_prio): New enum fields. @@ -3278,15 +5258,119 @@ (language_prio): Extern it. * src/parse-gram.y: Use grammar_prio rather than 1. -2008-11-04 Akim Demaille +2008-11-07 Akim Demaille - * NEWS: Mention the trailing semicolon in action. + Moving push traces into yypush_. + * data/lalr1.cc (yypush_): Now takes a optional trace message. + Adjust all uses. -2008-11-04 Akim Demaille +2008-11-07 Akim Demaille - Reformat NEWS. - * NEWS: Use more outline-mode markup. - Suggested by Jim Meyering. + The single-stack C++ parser is now the standard one. + * data/lalr1.cc: Rename as... + * data/lalr1-split.cc: this. + * data/lalr1-fusion.cc: Rename as... + * data/lalr1.cc: this. + * etc/bench.pl.in: Adjust. + +2008-11-07 Akim Demaille + + Avoid empty-if warnings. + Reported by Quentin Hocquet. + + * data/lalr1-fusion.cc (YY_SYMBOL_PRINT, YY_REDUCE_PRINT) + (YY_STACK_PRINT): Provide some contents even when !YYDEBUG. + +2008-11-07 Akim Demaille + + Pass command line location to skeleton_arg and language_argmatch. + * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch): + The location argument is now mandatory. + Adjust all dependencies. + (getargs): Use command_line_location. + +2008-11-07 Akim Demaille + + -D, --define. + * src/getargs.c (usage): Document -D. + Fix help string for --locations. + (command_line_location): New. + (short_options, long_options, getargs): Support -D, --define. + (getargs): Move -d support at the right place. + * doc/bison.texinfo (Bison Options): Update. + * tests/input.at (%define, --define): New. + +2008-11-07 Akim Demaille + + Initialize the muscle table before parsing the command line. + * src/getargs.c (quotearg.h, muscle_tab.h): Include. + (getargs): Define file_name. + * src/main.c (main): Initialize muscle_tab before calling + getargs. + * src/muscle_tab.c (muscle_init): No longer define file_name, as + its value is not available yet. + +2008-11-07 Akim Demaille + + Locations without columns for command line arguments. + * src/location.c (location_print): Don't display negative columns. + * src/location.h: Document this. + +2008-11-07 Akim Demaille + + Fix --help. + * src/getargs.c (usage): Fix help string for -W. + +2008-11-07 Akim Demaille + + Handle more general types of option arguments. + * build-aux/cross-options.pl: The argument ends at the first + space, not the first non-symbol character. + Use @var for each word appearing the argument description. + +2008-11-07 Akim Demaille + + Destroy the variants that remain on the stack in case of error. + * data/lalr1-fusion.cc (yydestruct_): Invoke the variant's + destructor. + Display the value only if yymsg is nonnull. + (yyreduce): Invoke yydestruct_ when popping lhs symbols. + +2008-11-07 Akim Demaille + + Add "%define assert" to variants. + This is used to help the user catch cases where some value gets + ovewritten by a new one. This should not happen, as this will + probably leak. + + Unfortunately this uncovered a bug in the C++ parser itself: the + lookahead value was not destroyed between two calls to yylex. For + instance if the previous lookahead was a std::string, and then an int, + then the value of the std::string was correctly taken (i.e., the + lookahead was now an empty string), but std::string structure itself + was not reclaimed. + + This is now done in variant::build(other&) (which is used to take the + value of the lookahead): other is not only stolen from its value, it + is also destroyed. This incurs a new performance penalty of a few + percent, and union becomes faster again. + + * data/lalr1-fusion.cc (variant::build(other&)): Destroy other. + (b4_variant_if): New. + (variant::built): New. + Use it whereever the status of the variant changes. + * etc/bench.pl.in: Check the penalty of %define assert. + +2008-11-07 Akim Demaille + + Use "%define variant" in bench.pl. + * etc/bench.pl.in: No longer use the pseudo directive %variants, + just use %define variants. + +2008-11-07 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. 2008-11-04 Joel E. Denny @@ -3298,6 +5382,369 @@ * tests/regression.at (Fix user actions without a trailing semicolon): New test case. +2008-11-04 Akim Demaille + + Use b4_copyright_years. + * data/yacc.c (b4_copyright_years): New. + Fix its value according to the comments in the file. + Use it and undefine it. + +2008-11-04 Akim Demaille + + Formatting changes. + * data/lalr1-fusion.cc, src/parse-gram.y: here. + +2008-11-04 Akim Demaille + + Formatting changes. + * data/lalr1-fusion.cc: here. + +2008-11-04 Akim Demaille + + Use strict on bench.pl. + * etc/bench.pl.in (&run, &generate_grammar): New. + Rename the grammar generating functions for consistency. + Change the interface so that the list of benches to run is passed + as (optionless) arguments. + (&compile): Use &run. + +2008-11-04 Akim Demaille + + Remove spurious initial empty lines. + * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java, + * data/yacc.c: End the @output lines with an @. + +2008-11-04 Akim Demaille + + Improve the display of sizes. + * etc/bench.p.in: Higher precision. + Sort by decreasing size. + +2008-11-04 Akim Demaille + + Don't memcpy C++ structures. + * data/lalr1-fusion.cc (b4_symbol_variant): Adjust additional + arguments. + (variant::build): New overload for + copy-construction-that-destroys. + (variant::swap): New. + (parser::yypush_): Use it in variant mode. + +2008-11-04 Akim Demaille + + Better defaults for bench.pl. + * etc/bench.pl.in ($verbose, $cflags, $iterations): Change the + default values. + Adjust &verbose uses. + (-q, --quiet): New. + +2008-11-04 Akim Demaille + + Make variant.yy more complex. + std::list cannot be copied via memcpy, they are more demanding than + std::string. Use one std::list to strengthen the test. + + * examples/variant.yy: Use lalr1-fusion.cc, not lalr1.cc. + Adjust. + Create a list of strings, instead of a single large string. + +2008-11-04 Akim Demaille + + bench.pl --bench. + * etc/bench.pl.in (--bench, $bench): New. + +2008-11-04 Akim Demaille + + Sort methods. + * data/lalr1-fusion.cc (destroy): Use as() in its definition. + Define it after as(). + +2008-11-04 Akim Demaille + + Useless parens. + * data/lalr1-fusion.cc (b4_rhs_location): Remove useless parens. + +2008-11-04 Akim Demaille + + Issue missing synclines after user actions. + * data/c.m4 (b4_case): Issue synclines on the output file. + +2008-11-04 Akim Demaille + + Remove trailing empty line. + * data/lalr1-fusion.cc: Don't add an empty line after the user's + epilogue. + +2008-11-04 Akim Demaille + + Fix output of copyright years. + * data/bison.m4 (b4_copyright): Fix the indentation of the + copyright year paragraph. + Use b4_copyright_years when no years are given. + * data/lalr1.cc, data/lalr1-fusion.cc, data/location.cc + (b4_copyright_years): New. + Use it. + +2008-11-04 Akim Demaille + + Avoid the spurious initial empty line. + * data/lalr1-fusion.cc, data/location.cc: Put a trailing "@" at + the end of @output request to suppress the empty line that + results. + +2008-11-04 Akim Demaille + + Remove parser::rhs_number_type. + * data/lalr1-fusion.cc (rhs_number_type): No longer define it. + (yyrhs_): Use b4_table_define. + +2008-11-04 Akim Demaille + + Fix iteration type. + * data/lalr1-fusion.cc: Use an int to iterate up to an int. + +2008-11-04 Akim Demaille + + Factor the declaration of the integer tables. + * data/lalr1-fusion.cc (b4_table_define): New. + Use it. + +2008-11-03 Akim Demaille + + Fix indentation of tables in lalr1.cc + * data/lalr1-fusion.cc: Fix the indentation. + +2008-11-03 Akim Demaille + + Destroy the lhs symbols after reduction. + * data/lalr1-fusion.cc (parse): After the user action, when in + variant mode, destroy the lhs symbols. + +2008-11-03 Akim Demaille + + Simplify yysyntax_error_ use. + * data/lalr1-fusion.cc (yysyntax_error_): Always pass it the token + type, but make it unnamed in the declaration when it is not used. + +2008-11-03 Akim Demaille + + Let yy::variant::build return an lvalue. + * data/lalr1-fusion.cc (variant::build): Return a reference to the + object. + +2008-11-03 Akim Demaille + + Define yy::variant only when needed. + * data/lalr1-fusion.cc (yy::variant): Define only if variants are + used. + +2008-11-03 Akim Demaille + + Bench the three-stack lalr1.cc. + * etc/bench.pl.in: Bench the three-stack lalr1.cc vs. the + one-stack one. + +2008-11-03 Akim Demaille + + Fail on parse error in calc++. + * doc/bison.texinfo (calc++.cc): Propagate failures to the exit + status. + * examples/calc++/test ($me, $number, $exit, run): New. + Use them to propagate errors to the exit status. + +2008-11-03 Akim Demaille + + Don't specify the skeleton twice in the example. + * examples/calc++/Makefile.am: Don't pass -S to Bison, the grammar + file does what is needed. + +2008-11-03 Akim Demaille + + bench: Improve output. + * etc/bench.pl.in (bench_grammar): Tune the printf format. + +2008-11-03 Akim Demaille + + bench: check impact of %debug on variants. + * etc/bench.pl.in (variant_grammar): Fix the computation of + $variant. + Generate a grammar file that can work with or without %debug. + Do use the @directive. + (bench_variant_parser): Check impact of %debug. + (@directives): Rename all the occurrences to... + (@directive): this, for consistency. + +2008-11-03 Akim Demaille + + bench: report the size too. + * etc/bench.pl.in ($iterations): Defaults to -3. + (&bench_grammar): Require hireswallclock. + Compute and display the size of the result. + More comments. + +2008-11-03 Akim Demaille + + bench: More use of the verbosity level. + * etc/bench.pl.in ($verbose, &verbose): New. + Use them. + More POD documentation. + +2008-11-03 Akim Demaille + + bench.pl: a command line interface + * etc/bench.pl.in: More doc. + Some fixes in the documentation. + ($cflags, $iterations, &help, &getopt): New. + Use them. + (&variant_grammar): Let the number of stages be 10 times what is + specified. + +2008-11-03 Akim Demaille + + Bench the use of Boost.Variants. + * etc/bench.pl.in ($cxx, &variant_grammar, &bench_variant_parser): + New. + (&compile): Be ready to compile C++ parsers. + (&bench_push_parser): Move debug information to the outermost + level. + * THANKS: Add Michiel De Wilde. + +2008-11-03 Akim Demaille + + bench.pl: Pass directives as a list instead of as a string. + * etc/bench.pl.in (&directives): New. + (&triangular_grammar, &calc_grammar): Use it to format the Bison + directives. + (&triangular_grammar): Do use the directives (were ignored). + (&bench_grammar, &bench_push_parser): Adjust to pass lists of + directives. + +2008-11-03 Akim Demaille + + Improve genericity of bench.pl. + * etc/bench.pl.in (&bench_grammar): Take the set of benches as + argument. + (&bench_push_parser): New. + Call it. + +2008-11-03 Akim Demaille + + Add documentation to bench.pl. + * etc/bench.pl.in: Comment changes. + +2008-11-03 Akim Demaille + + Fuse the three stacks into a single one. + + In order to make it easy to perform benchmarks to ensure that + there are no performance loss, lalr1.cc is forked into + lalr1-fusion.cc. Eventually, lalr1-fusion.cc will replace + lalr1.cc. + + Meanwhile, to make sure that lalr1-fusion.cc is correctly + exercized by the test suite, the user must install a symbolic link + from lalr1.cc to it. + + Instead of having three stacks (state, value, location), use a + stack of triples. This considerably simplifies the code (and it + will be easier not to require locations as currently does the C++ + parser), and also gives a 10% speedup according to + etc/bench (probably mainly since memory allocation is done once + instead of three times). + + Another motivation is to make it easier to destruct properly + semantic values: now that they are bound to their state (hence + symbol type) it will be easier to call the appropriate destructor. + + These changes should probably benefit the C parser too. + + * data/lalr1.cc: Copy as... + * data/lalr1-fusion.cc: this new file. + (b4_rhs_value, b4_rhs_location): New definitions overriding those + from c++.m4. + (state_stack_type, semantic_stack_type, location_stack_type) + (yystate_stack_, yysemantic_stack_, yylocation_stack_): Remove. + (data_type, stack_type, yystack_): New. + (YYLLOC_DEFAULT, yypush_): Adjust. + (yyerror_range): Now based on data_type, not location_type. + +2008-11-03 Akim Demaille + + Push the state, value, and location at the same time. + This is needed to prepare a forthcoming patch that fuses the three + stacks into one. + + * data/lalr1.cc (parser::yypush_): New. + (parser::yynewstate): Change the semantics: instead of arriving to + this label when value and location have been pushed, but yystate + is to be pushed on the state stack, now the three of them must + have been pushed before. yystate still must be the new state. + This allows to use yypush_ everywhere instead of individual + handling of the stacks. + +2008-11-03 Akim Demaille + + Prefer references to pointers. + * data/lalr1.cc (b4_symbol_actions): New, overrides the default C + definition to use references instead of pointers. + (yy_symbol_value_print_, yy_symbol_print_, yydestruct_): + Take the value and location as references. + Adjust callers. + +2008-11-03 Akim Demaille + + stack::size instead of stack::height. + * data/lalr1.cc (stack::height): Rename as... + (stack::size): this. + Fix the output type. + Comment changes. + +2008-11-03 Akim Demaille + + Use variants to support objects as semantic values. + This patch was inspired by work by Michiel De Wilde. But he used + Boost variants which (i) requires Boost on the user side, (ii) is + slow, and (iii) has useless overhead (the parser knows the type of + the semantic value there is no reason to duplicate this + information as Boost.Variants do). + + This implementation reserves a buffer large enough to store the + largest objects. yy::variant implements this buffer. It was + implemented with Quentin Hocquet. + + * src/output.c (type_names_output): New. + (output_skeleton): Invoke it. + * data/c++.m4 (b4_variant_if): New. + (b4_symbol_value): If needed, provide a definition for variants. + * data/lalr1.cc (b4_symbol_value, b4_symbol_action_) + (b4_symbol_variant, _b4_char_sizeof_counter, _b4_char_sizeof_dummy) + (b4_char_sizeof, yy::variant): New. + (parser::parse): If variants are requested, define + parser::union_type, parser::variant, change the definition of + semantic_type, construct $$ before running the user action instead + of performing a default $$ = $1. + * examples/variant.yy: New. + Based on an example by Michiel De Wilde. + +2008-11-03 Akim Demaille + + Parameterize the extraction of semantic values. + To make future changes easier, no longer rely on ".TYPE" being the + way to get a semantic value. + + * data/c.m4 (b4_symbol_value): New. + Use it. + * data/c++.m4, data/yacc.c: Use it. + * data/glr.c: Use b4_symbol_value. + (b4_rhs_data): New. + Use it. + +2008-11-03 Akim Demaille + + Prepare easier M4 changes. + * data/lalr1.cc: Use escaped [] instead of literals to prepare + future changes. + 2008-11-02 Joel E. Denny Initiate further development.