X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/197b82ba54902fcc024f6745b3e7cbf88845099a..9b04dad70ab2304d86175b002db6594ec653ae47:/ChangeLog diff --git a/ChangeLog b/ChangeLog index de7a46ec..9ae746fe 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,353 @@ +2009-05-19 Akim Demaille + + remove useless variable. + * 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. + +2009-05-11 Akim Demaille + + 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 + + bison: catch bad symbol names. + * src/scan-gram.l({int}{id}): Report as an invalid identifier. + * tests/input.at: Adjust. + +2009-05-04 Akim Demaille + + identifiers: dashes are letters. + Dashes can now start identifiers (symbols and directives). + + * src/scan-gram.l ({letter}): Add dash. + ({id}): Remove it. + * tests/input.at (Symbols): Adjust. + Remove stray comment. + * tests/regression.at (Invalid inputs): Adjust error message. + * doc/bison.texinfo (Symbols): Update. + +2009-05-01 Joel E. Denny + + Declare %code to be a permanent feature. + * NEWS (2.4.2): Here. + * doc/bison.texinfo (Prologue Alternatives): Don't say it's + experimental. + (Decl Summary): Likewise. + +2009-04-30 Joel E. Denny + + Convert underscores to dashes in some %define variable names. + For now, just api.push-pull and lr.keep-unreachable-states. + Maintain old names for backward compatibility. + * NEWS (2.5): Document. + * data/c.m4 (b4_identification): Update comment. + * data/yacc.c: Update access. + * doc/bison.texinfo: Update. + * 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 + uses of tr so far, command-line arguments can be involved, and + getargs.h is already included. + * src/main.c (main): Update access. + * src/muscle_tab.c (muscle_percent_define_insert): Convert old + variable names to new variable names before assigning value. + * src/reader.c (reader): Update setting default. + * tests/calc.at: Update uses. + * tests/conflicts.at (Unreachable States After Conflict + Resolution): Update use. + * tests/input.at (%define enum variables): Update use. + (%define backward compatibility): New test group. + * tests/push.at: Update uses. + * tests/reduce.at: Update uses. + * tests/torture.at: Update uses. + +2009-04-30 Joel E. Denny + + Set all front-end %define defaults in one place. + * src/main.c (main): Move lr.keep_unreachable_states default... + * src/reader.c (reader): ... to here. + +2009-04-29 Joel E. Denny + + Rename lr.default_reductions to lr.default-reductions. + * NEWS (2.5): Here. + * doc/bison.texinfo: Here. + * src/lalr.c (initialize_LA): Here. + * src/print.c (print_reductions): Here. + * src/reader.c (reader): Here. + * src/tables.c (action_row): Here. + * tests/input.at (%define enum variables): Here. + * tests/reduce.at (AT_TEST_LR_DEFAULT_REDUCTIONS): Here. + +2009-04-29 Joel E. Denny + + Pacify ./configure --enable-gcc-warnings. + * tests/input.at (Symbols): Prototype yyerror and yylex. + +2009-04-29 Joel E. Denny + + Document how `%define "var" "value"' is not M4-friendly. + * src/parse-gram.y (variable): In comments here. + +2009-04-24 Joel E. Denny + + Clean up recent patches a little. + Reported by Akim Demaille. + * doc/bison.texinfo (Understanding): Fix typos. + * src/print.c (print_reductions): Don't use negated variable. + +2009-04-24 Joel E. Denny + + List accepted values for a %define enum variable with an invalid value. + Suggested by Akim Demaille at + . + * data/bison.m4 (_b4_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. + +2009-04-23 Joel E. Denny + + Rename "default rule" to "default reduction". + This includes changing variable names in code, changing + comments, and renaming %define lr.default_rules to %define + lr.default_reductions. + * NEWS (2.5): Update IELR 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. + (Glossary): Adjust cross-references and Default Reduction + definition. + * src/lalr.c (state_lookahead_tokens_count): Adjust code. + Remove a confusing comment pointed out by Akim Demaille. + (initialize_LA): Adjust code. + * src/print-xml.c (print_reductions): Adjust code. + * src/print.c (print_reductions): Adjust code. + * src/reader.c (reader): Adjust code. + * src/tables.c (action_row): Adjust code. + (token_actions): Adjust code. + * src/tables.h: Adjust YYDEFACT documentation. + * tests/input.at (%define lr.default_rules invalid values): + Rename test group to... + (%define lr.default_reductions invalid values): ... this, and + update grammar file and expected output. + * 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. + * NEWS (2.5): Add an entry. + * src/getargs.c (usage): Mention IELR(1) and canonical LR(1) + besides just LALR(1) and GLR(1). + * doc/bison.texinfo (Introduction): Likewise. + (Language and Grammar): Bison is no longer limited to LALR(1) + restrictions. + (GLR parsing): Say deterministic or LR(1) rather than LALR(1) + when trying to distinguish from GLR. Talk about LR(1) grammars + rather than LALR(1) grammars. + (Decl Summary): In %define api.push_pull entry, say it applies + to deterministic parsers in C rather than LALR(1) parsers in C. + Add lr.default_rules entry. + Add lr.type entry. + (Mystery Conflicts): Bison is no longer limited to LALR(1) + restrictions. + (Generalized LR Parsing): Same changes as for the previous GLR + section. + (Memory Management): Say deterministic rather than LALR(1). + (Understanding): Correct some bison output. + Index discussion of "accepting state". + Say deterministic rather than LALR(1). + (Bison Options): In --yacc entry, say deterministic rather than + LALR(1). + In --report, --graph, and --xml entries, just don't mention + LALR(1). + (C++ Parsers): Say deterministic rather than LALR(1). + (Table of Symbols): Likewise in YYSTACK_USE_ALLOCA entry. + (Glossary): Add Accepting State, Consistent State, Default Rule, + and IELR(1) definitions. + In Generalized LR (GLR) definition, make same changes as in + previous GLR sections. + In LALR(1) definition, say Bison uses LALR(1) by default rather + than implying Bison is limited to LALR(1). + (LocalWords): Add IELR. + +2009-04-21 Joel E. Denny + + Finish implementing %define lr.type. + Its value can be "LALR", "IELR", or "canonical LR". + * lib/timevar.def (TV_IELR_PHASE1): New var. + (TV_IELR_PHASE2): New var. + (TV_IELR_PHASE3): New var. + (TV_IELR_PHASE4): New var. + * src/Makefile.am (bison_SOURCES): Add AnnotationList.c, + AnnotationList.h, InadequacyList.c, InadequacyList.h, Sbitset.c, + Sbitset.h, ielr.h, and ielr.c. + * src/getargs.h, src/getargs.c (enum trace, trace_args, + trace_types): Add trace_ielr. + * src/lalr.h, src/lalr.c (ngotos): Export it. + (F): Rename to... + (goto_follows): ... this, update all uses, and export it. + (set_goto_map): Export it. + (map_goto): Export it. + (compute_lookahead_tokens): Don't free goto_follows yet. Now + handled in ielr. + (initialize_LA): Export it. Move lookback allocation to... + (lalr): ... here because, for canonical LR, initialize_LA must + be invoked but lookback and much of the rest of LALR isn't + needed. + * main.c (main): Instead of lalr, invoke ielr, which invokes + lalr. + * src/reader.c (reader): Default lr.type to "LALR". + Default lr.default_rules to "accepting" if lr.type is "canonical + LR". Leave the default as "all" otherwise. + Check for a valid lr.type value. + * src/state.h, src/state.c (struct state_list): Add state_list + member. + (state_new): Initialize state_list member to NULL. + (state_new_isocore): New function, exported. + * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): New macro that + exercises all values of lr.type. + (GNU AWK Grammar): Rename test group to... + (GNU AWK 3.1.0 Grammar): ... this, and extend to use + AT_TEST_EXISTING_GRAMMAR. + (GNU Cim Grammar): Extend to use AT_TEST_EXISTING_GRAMMAR. + (GNU pic Grammar): Rename test group to... + (GNU pic (Groff 1.18.1) Grammar): ... this, and extend to use + AT_TEST_EXISTING_GRAMMAR. + * tests/reduce.at (AT_TEST_LR_TYPE): New macro that exercises + all values of lr.type. + (Single State Split): New test groups using AT_TEST_LR_TYPE. + (Lane Split): Likewise. + (Complex Lane Split): Likewise. + (Split During Added Lookahead Propagation): Likewise. + +2009-04-21 Joel E. Denny + + Add new files for IELR and canonical LR implementation. + * src/AnnotationList.c: New. + * src/AnnotationList.h: New. + * src/InadequacyList.c: New. + * src/InadequacyList.h: New. + * src/Sbitset.c: New. + * src/Sbitset.h: New. + * src/ielr.c: New. + * src/ielr.h: New. + +2009-04-20 Joel E. Denny + + Implement %define lr.default_rules. + Its value describes the states that are permitted to contain + default rules: "all", "consistent", or "accepting". + * src/reader.c (reader): Default lr.default_rules to "all". + Check for a valid lr.default_rules value. + * src/lalr.c (state_lookahead_tokens_count): If lr.default_rules + is "accepting", then only mark the accepting state as + consistent. + (initialize_LA): Tell state_lookahead_tokens_count whether + lr.default_rules is "accepting". + * src/tables.c (action_row): If lr.default_rules is not "all", + then disable default rules in inconsistent states. + * src/print.c (print_reductions): Use this opportunity to + perform some assertions about whether lr.default_rules was + obeyed correctly. + * tests/local.at (AT_TEST_TABLES_AND_PARSE): New macro that + helps with checking the parser tables for a grammar. + * tests/input.at (%define lr.default_rules invalid values): New + test group. + * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): New macro using + AT_TEST_TABLES_AND_PARSE. + (`no %define lr.default_rules'): New test group generated by + AT_TEST_LR_DEFAULT_RULES. + (`%define lr.default_rules "all"'): Likewise. + (`%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. + * src/getargs.c (usage, warnings_args): s/YACC/Yacc/. + +2009-04-17 Joel E. Denny + + Pacify make maintainer-check-posix. + * tests/input.at (%define, --define): Move bison command-line + options before grammar file name. + 2009-04-04 Joel E. Denny Document semicolon warnings.