X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/788355718faaaafcc78ba3b94903acb11c1a1da5..91a2b9b1b268e404801b8ea6f04c4da1025ebae0:/ChangeLog?ds=sidebyside diff --git a/ChangeLog b/ChangeLog index 1c76086c..a3691fba 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,9 +1,2158 @@ +2009-08-17 Akim Demaille + + build: lower gettext requirements. + + Bison was uselessly requiring the formatstring macros from + gettext, which resulted in mo files not being installed on systems + that perfectly supported Bison mo files. Lower the requirement. + http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html + + * configure.ac: Require need-ngettext instead of + need-formatstring-macros. + Reported by Martin Jabocs. + Suggested by Bruno Haible. + * INSTALL: Restructure. + (Internationalization): New. + +2009-08-14 Joel E. Denny + + maint: fix use of copyright year intervals. + * gnulib: Update. + * bootstrap.conf (gnulib_modules): Update getopt to getopt-gnu + as now recommended in gnulib/NEWS. + * build-aux/update-b4-copyright: Fix. + * cfg.mk (update-copyright-env): Configure update-copyright. + +2009-08-13 Joel E. Denny + + Make it easier to write deterministic tests. + Continues Akim's work from his 2009-06-10 commits. + * src/reader.c (check_and_convert_grammar): Don't add any + symbols after the first symbols_do invocation. + * src/symtab.c (symbols_sorted): New static global. + (user_token_number_redeclaration): Update comments. + (symbol_from_uniqstr): If a new symbol is being created, assert + that symbols_sorted hasn't been allocated yet. + (symbols_free): Free symbols_sorted. + (symbols_cmp, symbols_cmp_qsort): New functions. + (symbols_do): Sort symbol_table into symbols_sorted on first + invocation. + * 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. + + * examples/calc++/Makefile.am: (EXTRA_DIST): Ship calc.stamp. + +2009-08-10 Joel E. Denny + + * tests/local.mk (TESTSUITE_AT): Add named-refs.at. + +2009-08-10 Joel E. Denny + + Miscellaneous code readability improvements. + + * src/reader.c (reader): Move %define front-end variable + defaults and checking into... + (prepare_percent_define_front_end_variables): ... this new + function. + + * src/scan-gram.l (INITIAL): For consistency with string + literals, don't store open quote on character literal. It's + discarded before returning anyway. + (SC_ESCAPED_CHARACTER): Similarly, don't store close quote. + Make length test more readable, and make the character stored + for an empty literal more obvious while consistent with the + previous behavior. + + * src/symtab.c, src/symtab.h: Rename USER_NUMBER_ALIAS to + USER_NUMBER_HAS_STRING_ALIAS throughout. + * src/symtab.c (symbol_make_alias): Remove comment from symtab.c + that is repeated in symtab.h. Improve argument names to make it + clear which side of the symbol-string alias pair is which. + (symbol_check_alias_consistency): Improve local variable names + for the same purpose. + * src/symtab.h (struct symbol): Make comments about aliases + clearer. + (symbol_make_alias): Improve comments and argument name. + * src/output.c (token_definitions_output): Update for rename to + USER_NUMBER_HAS_STRING_ALIAS and improve comments about aliases. + +2009-08-08 Alex Rozenman + + Convert "misleading reference" messages to warnings. + * src/scan-code.l: New function 'show_sub_messages', more + factoring. + * tests/named-ref.at: Adjust tests. + +2009-08-06 Joel E. Denny + + maint: run "make update-copyright" + +2009-08-06 Joel E. Denny + + maint: make update-b4-copyright easier to use + * build-aux/update-b4-copyright: In warnings, report line + numbers rather than character positions. + * cfg.mk (update-copyright-local): Set to update-b4-copyright so + that update-copyright runs it. + * gnulib: Update. + +2009-08-05 Joel E. Denny + + maint: clean up update-b4-copyright code + * build-aux/update-b4-copyright: Do not accept 2-digit + UPDATE_COPYRIGHT_YEAR, which was not handled correctly. + Don't accept a `[' in a b4_copyright argument. + Format code more consistently. + Don't assume b4*copyright never occurs. + +2009-08-04 Joel E. Denny + + maint: automate b4_copyright updates. + * Makefile.am (update-b4-copyright): New target rule. + * 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. + +2009-08-04 Joel E. Denny + + maint: automate annual package-wide copyright-year update. + * .x-update-copyright: New. + * Makefile.am (EXTRA_DIST): Remove maint.mk. + * bootstrap.conf (gnulib_modules): Add maintainer-makefile and + update-copyright. Remove gnumakefile, which is implied by + maintainer-makefile. + * cfg.mk (bootstrap-tools): Copy from old maint.mk. + * gnulib: Update. + * maint.mk: Remove, now copied from gnulib. + * examples/extexi: Add missing "(C)" in copyright statement so + update-copyright can recognize it. + * src/LR0.h: Likewise. + * src/print.h: Likewise. + * src/print_graph.h: Likewise. + * src/gram.c: Add missing comma in copyright statement. + * src/gram.h: Likewise. + +2009-08-04 Joel E. Denny + + Fix "make distcheck". + * examples/calc++/Makefile.am: Say $(srcdir)/calc.stamp instead + of just calc.stamp. + +2009-08-01 Joel E. Denny + + Pacify "gcc -Wunused" for the input function from Flex. + Reported by Alex Rozenman. This warning shows up with gcc-4.3.0 + and later. + * src/scan-code.l: Add "%option noinput", which I cannot find in + the Flex manual, but which Flex has supported since at least as + far back as 2.5.4. However, if any of our developers still use + Flex 2.5.4, they'll need to stop configuring with + --enable-gcc-warnings because "%option noinput" didn't work + correctly until Flex 2.5.6. + * src/scan-gram.l: Likewise. + * src/scan-skel.l: Likewise. + +2009-07-31 Alex Rozenman + + Fix --enable-gcc-warnings problems. + * src/reader.c: Adjust variable names. + * src/scan-code.l: Fix prototypes and adjust names. + * src/named-ref.c: Remove redundant "if". + +2009-07-29 Joel E. Denny + + Fix a --enable-gcc-warnings problem. + * src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length + variable. + +2009-07-24 Joel E. Denny + + Warn about character literals not of length one. + * NEWS (2.5): Document. + * src/scan-gram.l (INITIAL): Remove comment that we don't check + the length. + (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. + +2009-07-22 Joel E. Denny + + Some M4 cleanup in the testsuite. + Suggested by Eric Blake at + . + * tests/existing.at (_AT_TEST_EXISTING_GRAMMAR): Do not + complicate the code by distinguishing between a missing value + and an empty string value for an optional argument. This fix is + allowed by the similar fix in AT_TEST_TABLES_AND_PARSE below. + * tests/local.at (_AT_TEST_TABLES_AND_PARSE): Merge into... + (AT_TEST_TABLES_AND_PARSE): ... this now that the special + arguments are not needed because of the following changes. + Fix stale comments. + Bison developers should use GNU M4 and should not use + POSIXLY_CORRECT when building the test suite, so do not + complicate the code by avoiding $10 and above. + Do not quote an empty string value for an optional argument, and + do not distinguish between a missing value and an empty string + value. + +2009-07-15 Joel E. Denny + + Revert unnecessary column realignment in --help output. + Reported by Akim Demaille at + . + * src/getargs.c (usage): Here. + +2009-07-04 Alex Rozenman + + Alphabetical order in src/local.mk. + * src/local.mk: Adjust. + +2009-07-04 Alex Rozenman + + Style changes and factoring. + * src/named-ref.h: Add comments. + * src/parse-gram.y: Readability and style changes. + * src/reader.c: Factoring: assign_named_ref function. + * src/scan-code.l: Factoring and style changes. Rename + parse_named_ref to parse_ref. Use "c-ctype.h" from gnulib. + Use "unsigned" type for variant index. Improve readablity. + * src/scan-gram.l: Change error messages and add comments. + * src/symlist.h: symbol_list_null: New function decl. + * src/symlist.c: symbol_list_null: Implement here. + * tests/named-refs.at: Adjust for new error messages. + +2009-06-29 Eric Blake + + scan-code: avoid compiler warnings + * src/scan-code.l (parse_named_ref): Use correct specifiers. + +2009-06-29 Akim Demaille + + build: avoid concurrent extraction of calc++. + * examples/calc++/Makefile.am (calc.stamp): New. + Depend on it to create the sources of calc++ so that concurrent + builds don't launch several "extexi" in parallel. + 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. + * src/parse-gram.y: Add new syntax (named_ref.opt). + * src/reader.c: Store named refs in symbol lists. + * src/reader.h: New argument for symbol_append and + action_append functions. + * src/scan-code.h: Add new field (named_ref) into + code_props data structure. Keeps named ref of midrule + actions. + * src/scan-code.l: Support for named refs in semantic + action code. New function 'parse_named_ref'. + * src/scan-gram.l: Support bracketed id. + * src/symlist.c: Store named refs in symbol lists. + * src/symlist.h: New field in symbol list: named_ref. + * src/named-ref.h: New file, a struct for named_ref. + * src/named-ref.cp: New file, named_ref_new function. + * src/local.mk: Add two new files. + * tests/testsuite.at: Include new test group: + * tests/named-refs.at: this new file. + +2009-06-25 Akim Demaille + + 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. + * data/xslt/xml2dot.xsl, data/xslt/xml2xhtml.xsl: Space changes. + * src/print-xml.c: Style changes. + * tests/conflicts.at: Comment changes. + +2009-06-11 Akim Demaille + + xml: beware of user strings used to give a %prec to rules. + * tests/conflicts.at (%prec with user strings): New. + * src/gram.c (grammar_rules_print_xml): Escape the precedence for + XML output. + +2009-06-11 Akim Demaille + + hash: check insertion for memory exhaustion. + * src/muscle-tab.c (muscle_insert, muscle_grow) + * 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. + Some consistency checks on symbols are performed after all the + symbols were read, by an iteration over the symbol table. This + traversal is nondeterministic, which can be a problem for test + cases. + Avoid this. + Addresses another form of nondeterminism reported by Joel E. Denny. + http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html + + * tests/input.at (Numbered tokens): Split the hexadecimal/decimal + test in two. + 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. + Address nondeterminism reported by Joel E. Denny. + http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html + + * src/uniqstr.h: Comment changes. + * src/location.h (boundary_cmp, location_cmp): New. + * src/symtab.c (user_token_number_redeclaration): New. + (symbol_translation): Use it. + * tests/input.at (Numbered tokens): Adjust the expected output. + +2009-05-25 Akim Demaille + + 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 + + Convert multiple variable definition warnings to complaints. + * 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 + comments. + * tests/input.at (`%define errors'): Update. + (`%define, --define, --force-define'): Update. + +2009-05-22 Joel E. Denny + + -F/--force-define and relative %define/-D/--define priorities. + * NEWS (2.5): Add documentation to -D/--define entry. + * build-aux/cross-options.pl: Hard-code association of + --force-define with %define. + * doc/bison.texinfo (Decl Summary): In %define entry, + cross-reference command-line options. + (Bison Options): Add documentation to -D/--define entry. + (Option Cross Key): Widen column for --force-define row. + * 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 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 + -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... + (`%define, --define, --force-define'): ... this and extend. + +2009-05-22 Joel E. Denny + + 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. + (muscle_percent_code_grow): Likewise just for consistency. + +2009-05-20 Joel E. Denny + + * data/c++.m4 (b4_namespace_close): Simplify slightly. + +2009-05-19 Joel E. Denny + + Handle a trailing `:' in a user-supplied C++ namespace better. + * data/c++.m4 (b4_namespace_close): Don't let it be printed + among the closing braces here. This fix might make the + generated code easier to debug, but otherwise it should be + insignificant because a trailing `:' is a C++ error already. + +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. + * NEWS (2.5): Here. + +2009-04-14 Akim Demaille + + 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. + +2009-04-14 Akim Demaille + + 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 + + doc: minor fixes. + * doc/bison.texinfo (Decl Summary): Fix entry about %debug. + (Table of Symbols): Remove duplicate entry for %debug. + +2009-04-10 Eric Blake + + submodules: update to latest + * submodules/autoconf: Use latest upstream Autoconf. + +2009-04-06 Eric Blake + + Work around autoconf 2.63b bug in testsuite. + * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Avoid tripping + autoconf bug related to # in test. + +2009-04-06 Joel E. Denny + + * NEWS (2.5): New section. Describe new -D/--define feature. + +2009-04-06 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. + +2009-04-06 Akim Demaille + + 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. + +2009-04-06 Akim Demaille + + Makefile: introduce $(BISON). + * src/local.mk (BISON): New. + (YACC): Use it. + +2009-04-06 Akim Demaille + + 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. + +2009-04-06 Akim Demaille + + Regen. + * src/parse-gram.c: Regen. + +2009-04-06 Akim Demaille + + muscle: factor the handling of obsolete of obsolete directives. + Suggested by 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 %. + +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. + +2009-04-04 Joel E. Denny + + Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4. + If the first m4 in $PATH is wrong, it keeps looking. Moreover, its + requirements for a correct m4 are stricter. + * m4/m4.m4: Make it a symbolic link to submodules/autoconf/m4/m4.m4. + * configure.ac: Update to use AC_PROG_GNU_M4. + Reported by Eric Blake. + +2009-04-03 Joel E. Denny + + Help with updating web manual. + * HACKING: Incorporate instructions from gnulib/doc/README. + * bootstrap.conf (gnulib_modules): Add gendocs. + +2009-04-03 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. + +2009-04-03 Akim Demaille + + Factor %FLAG at scan level. + * src/parse-gram.y (PERCENT_DEBUG, PERCENT_ERROR_VERBOSE): Token + definitions and associated rules, replaced by.... + (PERCENT_FLAG): this new token type, and rule. + * src/scan-gram.l (RETURN_PERCENT_FLAG): New. + Use it for %debug and %error-verbose. + +2009-04-03 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. + +2009-04-03 Akim Demaille + + Treat %debug as %define debug. + * data/bison.m4 (b4_debug_if): New. + * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c, + * data/lalr1.java: Use it instead of b4_debug_flag. + * src/getargs.h, src/getargs.c (debug_flag): Remove. + * src/output.c (prepare): Don't output it. + * src/parse-gram.y: Treat %debug as %define debug. + +2009-04-03 Akim Demaille + + Treat %error-verbose as %define error_verbose. + This allows to pass -Derror_verbose on the command line. Better + yet, it allows to pass -Derror_verbose=$(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. + +2009-04-03 Joel E. Denny + + Fix strange %define locations for default values. + Reported by Akim Demaille at + + and discussed again starting at + . + * data/bison.m4 (b4_percent_define_default): Leave syncline blank + because location information is bogus. + Use angle brackets to delimit fake file name because square brackets + look like underexpanded m4. Choose a better fake file name. + Use negative line numbers. + * src/muscle_tab.c (muscle_percent_define_default): Likewise. + * src/location.c (location_print): If line for a boundary is negative, + only print that boundary's file name. + * src/location.h: Document that. + * tests/skeletons.at (%define Boolean variables: invalid skeleton + defaults): Update output. + +2009-04-03 Joel E. Denny + + 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 + + bootstrap: --help to stdout. + * bootstrap (usage): Don't send --help to stderr. + Use a here doc instead of a long string. + +2009-03-31 Akim Demaille + + bootstrap: README-hacking no longer exists + * bootstrap (checkout_only_file): Set to HACKING. + +2009-03-26 Akim Demaille + + doc: merge HACKING and README-hacking. + Two files is confusing. + Reported by Alexandre Duret-Lutz. + + * README-hacking: Merge into... + * HACKING (Working from the repository): here. + +2009-03-26 Akim Demaille + + doc: update README-hacking. + * README-hacking: We now use git and git submodules. + Reported by Ralf Wildenhues and Alexandre Duret-Lutz. + +2009-03-26 Akim Demaille + + lalr1.cc: avoid GCC 4.3 warnings. + GCC 4.3 now warns about "a || b && c" and asks for explicit + parentheses. + Reported by Alexandre Duret-Lutz. + * data/location.cc: Update copyright years. + (Position::operator==): Use parens to make precedence explicit. + Compare lines and columns first, as they are more likely to be + different, and they are faster to compare. + +2009-03-26 Akim Demaille + + gnulib: update. + * gnulib: Update to latest. + * 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 + + Fix grep portability issues. + Grep on Solaris does not support -q. + Reported by Summum Bonum. + + * NEWS: Add a stub for 2.4.2. + * THANKS: Add Summum Bonum. + * tests/atlocal.in (EGREP): New. + (CC, CXX, XSLTPROC): Make it possible to override them via + envvars. + * tests/java.at: Use $EGREP instead of egrep. + Use AT_CHECK's ignore instead of grep's -q. + +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. + +2008-12-11 Akim Demaille + + Formatting changes. + * data/glr.c: Formatting changes. + +2008-12-11 Akim Demaille + + 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. + +2008-12-11 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. + * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT) + (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT) + (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR) + (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings, + since some of them contain unbalanced ')'. + +2008-12-01 Akim Demaille + + 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. + +2008-12-01 Akim Demaille + + Use b4_symbol_case_. + * data/lalr1.cc, data/bison.m4 (b4_symbol_action): Use + b4_symbol_case_. + +2008-12-01 Akim Demaille + + 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. + +2008-12-01 Akim Demaille + + b4_symbol/type_foreach. + * data/lalr1.cc (b4_symbol_foreach, b4_type_foreach): New. + Use them. + +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. + +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. + +2008-11-26 Akim Demaille + + Use yy* consistently. + * data/glr.c: Now that yyrhs no longer exists as a global + variable, rename local "rhs" variables into "yyrhs" for + consistency. + +2008-11-25 Akim Demaille + + Get rid of yyrhs and yyprhs in glr.c. + * data/glr.c (yyrhs, yyprhs): Remove. + Instead, use the state stack and yystos. + +2008-11-25 Akim Demaille + + 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. @@ -23,7 +2172,7 @@ 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. @@ -42,10 +2191,10 @@ 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. - + 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 @@ -55,13 +2204,13 @@ 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. - + 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. @@ -200,14 +2349,14 @@ 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. - + 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_) @@ -359,8 +2508,8 @@ 2008-11-10 Akim Demaille Make parser::yytranslate static. - Small speedup (1%) on the list grammar. And makes yytranslate_ available - in non member functions. + 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. @@ -620,9 +2769,10 @@ 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. + 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. @@ -1047,18 +3197,22 @@ 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. + 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. - 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). + 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 @@ -1066,8 +3220,8 @@ These changes should probably benefit the C parser too. - * data/lalr1.cc: Copy as... * data/lalr1-fusion.cc: this new - file. + * 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) @@ -1110,14 +3264,15 @@ 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 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. + 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. @@ -1344,9 +3499,9 @@ 2008-08-29 Akim Demaille Clarify UPDATED use. - * doc/bison.texinfo: It refers to the last edition of this file, + * doc/bison.texinfo: It refers to the last edition of this file, not to the release date of Bison. - Reported by Joel E. Denny. + Reported by Joel E. Denny. 2008-08-29 Akim Demaille @@ -1366,15 +3521,15 @@ 2008-08-27 Akim Demaille Check yyerrok in calc.at. - * tests/calc.at (calc.y): Use yyerrok on "( error )". - (AT_CHECK_CALC): Add a check that ensures that yyerrok works as - expected. + * tests/calc.at (calc.y): Use yyerrok on "( error )". + (AT_CHECK_CALC): Add a check that ensures that yyerrok works as + expected. 2008-08-27 Akim Demaille Support yyerrok in lalr1.cc. YYBACKUP is still to import back into lalr1.cc. - * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define. + * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define. 2008-08-26 Joel E. Denny @@ -22138,8 +24293,8 @@ ----- Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, - 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 - Free Software Foundation, Inc. + 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, + 2008, 2009 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted provided the copyright notice and this