+2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/print-xml.c (escape_bufs): New static global variable
+ replacing...
+ (xml_escape_n): ... the static local variable buf here.
+ (print_xml): Free memory for escape_bufs.
+ * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
+
+2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Replace `%push-parser' and `%push-pull-parser' with
+ `%define push_pull "push"' and `%define push_pull "both"'.
+ `%define push_pull "pull"' is the default.
+ * doc/bison.texinfo (Push Decl, Push Parser Function,
+ Pull Parser Function, Parser Create Function, Parser Delete Function):
+ Update declarations.
+ (Decl Summary, Table of Symbols): Replace %push-parser and
+ %push-pull-parser entries with a %define push_pull entry.
+ * data/bison.m4 (b4_percent_define_check_values): New macro.
+ (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
+ definitions...
+ * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
+ definitions...
+ * data/push.c: ... to here and compute them from the value of the
+ %define variable push_pull.
+ * data/c-skel.m4: Instead of choosing the push.c skeleton for push
+ parsing requests here...
+ * data/yacc.c: ... hack this to switch to push.c any time
+ b4_use_push_pull_flag or the %define variable push_pull is set. This
+ will go away when we mv push.c yacc.c.
+ * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
+ push parsing is not supported since unused %define variables are
+ reported anyway.
+ * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
+ * src/muscle_tab.h (muscle_percent_define_check_values): Update
+ comments for consistency with b4_percent_define_check_values.
+ * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
+ muscles.
+ * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
+ Remove.
+ (prologue_declaration): Remove %push-parser and %push-pull-parser
+ rules.
+ * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
+ * tests/calc.at: Update declarations.
+ * tests/input.at (%define enum variables): New test case.
+ * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
+ declaration.
+ (Push Parsing: Multiple impure instances): Update declaration.
+ (Push Parsing: Unsupported Skeletons): New test case.
+ * tests/torture.at (Exploding the Stack Size with Alloca): Update
+ declaration.
+ (Exploding the Stack Size with Malloc): Update declaration.
+
+2007-09-24 Wojciech Polak <polak@gnu.org>
+
+ Add XSLT transformations.
+
+ * data/xslt/xml2dot.xsl: Transform XML into DOT.
+ * data/xslt/xml2text.xsl: Transform XML into plain text.
+ * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
+ * data/Makefile.am (xsltdir): New variable.
+ (dist_xslt_DATA): Add xslt/*.xsl files.
+
+2007-09-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
+ Problem reported by Wojciech Polak.
+ * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
+ (xml_printf): Undo change I made on 21 September; that is,
+ indent 2 spaces, not 1.
+
+2007-09-23 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Pacify ./configure --enable-gcc-warnings.
+ * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
+ `char const *' instead of `char *'.
+ * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
+ local variable `sep'.
+
+2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
+ elsewhere.
+ * src/print-xml.c: Prefer "const" after types; that's more consistent.
+ (xml_printf): Indent just 1 space for level.
+ (e_char, xlate_char): Remove.
+ (xml_escape_string): Rewrite to avoid undefined behavior (used
+ storage that was freed from the stack).
+ (xml_escape_n): Don't bother checking for subscript error.
+
+2007-09-21 Wojciech Polak <polak@gnu.org>
+
+ Add Bison XML Automaton Report.
+
+ Add support for an -x option to generate an XML report.
+ It is not documented yet.
+ * src/print-xml.c: New file.
+ * src/print-xml.h: Likewise.
+ * lib/timevar.def (TV_XML): New var.
+ * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
+ * src/conflicts.c: Include print-xml.h.
+ (solved_conflicts_xml_obstack): New var.
+ (log_resolution, conflicts_solve, conflicts_free):
+ Add support for XML report.
+ (conflicts_output_val): New function.
+ * src/conflicts.h (conflicts_output_val): New decl.
+ * src/files.c (spec_xml_file): New var.
+ (compute_output_file_names, output_file_names_free): Add XML support.
+ * src/files.h (spec_xml_file): New decl.
+ * src/getargs.c (xml_flag): New var.
+ (usage, short_options, long_options, getargs): Add XML support.
+ * src/getargs.h (xml_flag): New decl.
+ * src/gram.c: Include print-xml.h.
+ (rule_lhs_print_xml, rule_rhs_print_xml):
+ (grammar_rules_partial_print_xml, grammar_rules_print_xml):
+ New functions.
+ * src/gram.h: Declare external ones.
+ * src/main.c: Include print-xml.h.
+ (main): Add XML support.
+ * src/reduce.c: Include print-xml.h.
+ (reduce_xml): New function.
+ * src/reduce.h: Declare it.
+ * src/state.c: Include print-xml.h.
+ (state_new): Add XML support.
+ (state_rule_lookahead_tokens_print_xml): New function.
+ * src/state.h: Declare it.
+ (struct state): New member solved_conflicts_xml.
+ * src/symtab.c (symbol_class_get_string): New function.
+ * src/symtab.h: Declare it.
+
+2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * GNUmakefile: Switch to coreutils's version.
+ * bootstrap: Likewise.
+ * Makefile.cfg: Adjust to new GNUmakefile.
+ * README-hacking: Likewise.
+
+ Import from gnulib:
+
+ 2006-08-18 Paul Eggert <eggert@cs.ucla.edu>
+ Bruno Haible <bruno@clisp.org>
+
+ * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
+ and is a script that invokes bison. Tighten the code. Add comments.
+
+2007-08-28 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Spell "boolean" as "Boolean". Reported by Akim Demaille.
+ * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
+ * doc/bison.texinfo (Decl Summary): Fix.
+ * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
+ * tests/input.at (Boolean %define variables): Update output.
+ * tests/skeletons.at (%define boolean variables: invalid skeleton
+ defaults): Rename to...
+ (%define Boolean variables: invalid skeleton defaults): ... this and
+ update output.
+
+2007-08-17 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ In impure push mode, don't allow more than one yypstate to be allocated
+ since multiple impure parsers would corrupt yynerrs.
+ * data/push.c (yypstate_allocated): New static global variable
+ initialized to 0.
+ (yypull_parse): If yypstate_new returns 0, don't report it as memory
+ exhaustion if yypstate_allocated is 1, but still return 2.
+ (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
+ already 1. Otherwise, set it to 1.
+ (yypstate_delete): Set it to 0.
+ * tests/push.at (Push Parsing: Multiple impure instances): New test
+ case.
+
+2007-08-17 Bob Rossi <bob@brasko.net>
+
+ * doc/bison.texinfo (Push Decl): Document the push parser.
+ (Table of Symbols): Ditto.
+ (Pure Decl): Ditto.
+ (Decl Summary): Ditto.
+ (Multiple Parsers, Push Parser Function, Pull Parser Function,
+ Parser Create Function, Parser Delete Function):
+ Add new push parser symbols.
+ (Table of Symbols): Document push-parser, push-pull-parser,
+ yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
+
+2007-08-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ Update to GPLv3.
+ * doc/gpl-3.0.texi: New file.
+ * doc/gpl.texi: Remove.
+ * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
+ * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
+ * README-hacking, TODO, bootstrap, bootstrap.conf:
+ * configure.ac, data/Makefile.am, 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/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
+ * 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/Makefile.am, doc/bison.texinfo:
+ * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
+ * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
+ * examples/calc++/Makefile.am, lib/Makefile.am, 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/subpipe.c, lib/subpipe.h:
+ * lib/timevar.c, lib/timevar.def, lib/timevar.h:
+ * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
+ * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
+ * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
+ * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
+ * src/complain.c, src/complain.h, src/conflicts.c:
+ * src/conflicts.h, 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/lalr.c, src/lalr.h, src/location.c, src/location.h:
+ * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
+ * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
+ * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
+ * src/print.c, src/print.h, src/print_graph.c:
+ * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
+ * src/reduce.h, src/relation.c, src/relation.h:
+ * src/revision.h, src/scan-code.h, src/scan-code.l:
+ * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
+ * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
+ * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
+ * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
+ * tests/Makefile.am, tests/actions.at, tests/c++.at:
+ * 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/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:
+ Update to GPLv3.
+
+2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Get rid of broken %no-parser, -n, and --no-parser implementation and
+ documentation.
+ * TODO: Don't mention them.
+ * doc/bison.1: Likewise.
+ * doc/bison.texinfo (Decl Summary): Likewise.
+ (Bison Options): Likewise.
+ (Option Cross Key): Likewise.
+ * src/getargs.c (no_parser_flag): Remove global variable.
+ (usage): Don't print description of -n and --no-parser.
+ (long_options): Remove --no-parser entry here.
+ (getargs): Remove -n case in the switch here.
+ * src/getargs.h (no_parser_flag): Remove extern.
+ * tests/regression.at (Web2c Actions): Remove comment that mentions
+ --no-parser.
+
+2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
+ name user variables starting with `yy'. Just pass NULL instead of a
+ dummy local &yylval to yypush_parse.
+ * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
+ starting with `yy'.
+
+2007-08-03 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
+ true since it's then always used regardless of whether yyoverflow is
+ defined. Reported by Christian Burger at
+ <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
+ * THANKS: Add Christian Burger.
+
+ * ChangeLog: For changes in doc/bison.texinfo, consistently reference
+ node names: say "Decl Summary" not "Bison Declaration Summary".
+
+2007-07-28 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
+ determine whether this function has already complained about an invalid
+ value for a %define boolean variable, don't check whether Bison has
+ ever examined the value. As written, the check was a tautology.
+ Instead, record and check for this complaint using a separate muscle.
+
+2007-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Fix push parsing memory leak reported by Brandon Lucia at
+ <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
+ * THANKS: Add Brandon Lucia.
+ * data/push.c (yypstate_delete): Free the stack if it was reallocated
+ but the parse never completed and thus freed it.
+ * tests/Makefile.am (TESTSUITE_AT): Add push.at.
+ * tests/testsuite.at: Include push.at.
+ * test/push.at: New.
+ (Push Parsing: Memory Leak for Early Deletion): New test case.
+
+2007-07-17 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Improve handling of multiple S/R conflicts in the same state and of S/R
+ conflicts involving multiple reductions.
+ * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
+ set for a state here or Bison will abort if it is reassigned on a
+ later conflicted reduction in the same state.
+ Similarly, don't finalize and assign the solved conflicts report here
+ or it will be lost if it is reassigned on a later conflicted reduction
+ in the same state.
+ (set_conflicts): Instead, assign them both here after all S/R conflicts
+ in the state have been fully examined.
+ * src/print.c (shift_set): Rename to...
+ (no_reduce_set): ... this.
+ (print_reductions): Update for rename, and add %nonassoc error action
+ tokens to no_reduce_set so that, when printing the first remaining
+ reduction on an error action token, the reduction is enclosed in
+ brackets.
+ (print_results): Update for rename.
+ * tests/conflicts.at (Solved conflicts report for multiple reductions
+ in a state): New test case.
+ (%nonassoc error actions for multiple reductions in a state): New test
+ case.
+
+ * src/main.c (main): Don't depend on C99 features.
+
+2007-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * build-aux/.cvsignore: Add compile.
+ * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
+ uniwidth.
+
+2007-07-10 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * bootstrap (slurp): Create target directories that don't exist.
+ Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
+
+2007-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * LR0.c (new_itemsets): Fix wording in comments: say item index rather
+ than item number.
+ * closure.c (closure): Likewise.
+ * state.h (reductions): Comment sorting of rules.
+ (state): Comment sorting of items.
+
+2007-07-02 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Fix C++ test cases after recent Gnulib changes. Discussed starting at
+ <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
+ * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
+ definition in order to avoid Gnulib headers since we don't use config.h
+ here.
+ * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
+ rather than AT_DATA so that config.h is included.
+
+2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
+ instead of fprintf. Guard these functions with #if YYDEBUG instead of
+ #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
+ and so that YYFPRINTF is guaranteed to be defined here.
+
+2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
+ with...
+ (muscle_percent_define_check_values): ... this more helpful function.
+ Again, it's not used yet, but it will be.
+ * src/muscle_tab.h: Likewise.
+
+ Improve some comments in parser table construction.
+ * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
+ (generate_states): Don't mention ruleset, which is internal to closure.
+ * src/closure.c (closure): Explain sorting of core and itemset, which
+ is required for this function to behave correctly.
+ * src/closure.h (closure): Mention sorting.
+
+2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/lalr.c (state_lookahead_tokens_count): For code readability,
+ move the check for disabled transitions to an aver since conflict
+ resolution hasn't happened yet.
+
+ * src/lalr.c (state_lookahead_tokens_count): Remove the check that
+ labels a state as inconsistent just because it has error transitions.
+ The original form of this check appeared in revision 1.1 of lalr.c,
+ which was committed on 1991-12-21. Now (at least), changing the
+ consistency label on such a state appears to have no useful effect in
+ any of the places it is examined, which I enumerate below. The key
+ point to understanding each item in this enumeration is that a state
+ with an error transition is labelled consistent in the first place only
+ if it has no rules, so the check cannot matter for states that have
+ rules. (1) Labelling a state as inconsistent will cause set_conflicts
+ to try to identify its conflicts, and a state must have *rules* to have
+ conflicts. (2) Labelling a state as inconsistent will affect how
+ action_row sets the default *rule* for the state. (3) Labelling a
+ state as inconsistent will cause build_relations to add lookback edges
+ to *rules* in that state.
+ * src/state.h (struct state): Word the comment for member consistent
+ more carefully.
+
+2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Don't depend on C99 features.
+ * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
+ * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
+ * src/reader.c (check_and_convert_grammar): Fix for-loop.
+ * src/state.c (state_mark_reachable_states): Fix for-loop.
+ (state_remove_unreachable_states): Fix for-loop.
+
+ Don't widen struct state with member reachable just to temporarily
+ record reachability. Instead, use a local bitset.
+ * src/state.h (struct state): Remove member.
+ * src/state.c (state_new): Don't initialize it.
+ (state_mark_reachable_states): Rename to...
+ (state_record_reachable_states): ... this, and use bitset.
+ (state_remove_unreachable_states): Use bitset.
+
+2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/Makefile.am (yacc): Quote target action commands properly so
+ that the yacc script isn't corrupt. Reported by Hans Aberg at
+ <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
+
+ * data/glr.c (yylval): As in yacc.c, don't extern in the header for
+ the case of pure parsers. Reported by Frans Englich at
+ <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
+ * THANKS: Add Frans Englich.
+
+ * NEWS (2.3a+): In the %code entry, reference section `Bison
+ Declaration Summary' from the manual now since the %code summary has
+ moved there.
+ * doc/bison.texinfo (Prologue Alternatives): Mention that directives
+ in the rules section must be terminated by semicolons.
+
+2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Extend the front-end API for %define variables to more completely
+ mirror the back-end. This will be useful in the future.
+ * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
+ Update comments to mention the new front-end counterparts of these
+ macros.
+ * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
+ for muscle_string_decode and muscle_location_decode.
+ (muscle_string_decode): New static function.
+ (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
+ (muscle_percent_define_get, muscle_percent_define_ifdef): New
+ functions.
+ (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
+ muscle_percent_define_get to mimic the b4_percent_define_flag_if
+ implementation more closely.
+ (muscle_percent_define_invalid_value): New function.
+ * src/muscle_tab.h (muscle_percent_define_get,
+ muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
+ Prototype.
+
+2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * NEWS (2.3a+): Mention yesterday's state-removal change.
+ (2.3a): Remove the %language entry, which was added after 2.3a.
+ * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
+ src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
+ src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
+ tests/existing.at: Update copyright date.
+
+2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ If conflict resolution makes states unreachable, remove those states,
+ report rules that are then unused, and don't report conflicts in those
+ states.
+ * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
+ New global function.
+ * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
+ function.
+ * src/main.c (main): After conflict resolution, remove the unreachable
+ states and update all data structures that reference states by number.
+ * src/state.c (state_new): Initialize each state's reachable member to
+ false.
+ (state_mark_reachable_states): New static function.
+ (state_remove_unreachable_states): New global function.
+ * src/state.h (struct state): Add member bool reachable.
+ (state_remove_unreachable_states): Prototype.
+ * tests/conflicts.at (Unreachable States After Conflict Resolution):
+ New test case.
+ * tests/existing.at (GNU pic Grammar): Update test case output now that
+ an unused rule is discovered.
+
+2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Minor code cleanup in parser table construction.
+ * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
+ (new_itemsets, save_reductions): Update for rename to nitemset.
+ * src/closure.c (nritemset): Rename to...
+ (nitemset): ... this since the "r" appears to meaningless and isn't
+ used in the comments.
+ (closure): Update for rename.
+ * src/closure.h (nritemset): Update extern to...
+ (nitemset): ... this.
+ * src/lalr.c (LA): Fix a typo in comments.
+ * src/print.c (print_core): Update for rename to nitemset.
+ * src/print_graph.c (print_graph): Likewise.
+ * src/state.h: Fix some typos in header comments.
+
+2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
+
+ * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
+ still sticks to ASCII. Sorry!
+
+ * README-hacking: New file, taken mostly from coreutils, with changes
+ for Bison. Contains much of the contents of:
+ * README-cvs: Remove.
+ * bootstrap: Sync from gnulib.
+ * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
+ * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
+
+2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
+ Setzer.
+ (Java Differences): Fix some typos.
+ * THANKS: Add Sebastian Setzer.
+
+2007-03-07 Paolo Bonzini <bonzini@gnu.org>
+
+ * data/java.m4 (b4_single_class_if): Remove.
+ (b4_abstract_if): Look at "%define abstract".
+ (b4_lexer_if): New.
+ (b4_union_name): Rename...
+ (b4_yystype): ... to this. Map to "%define stype".
+ (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
+ b4_maybe_throws): Fix quoting.
+ (b4_lex_param_call): Move below to keep b4_*_param_decl close.
+ * data/lalr1.java (Lexer interface): Always define.
+ (Lexer interface within parser class): Remove.
+ (YYLexer class): New, used when "%code lexer" is present.
+ (constructor): When "%code lexer" is used, pass %lex-param
+ to the lexer constructor.
+ (yylex, yyparse): Remove %lex-param from method invocations
+ (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
+
+ * doc/bison.texinfo (Java Bison Interface): Mention "%define
+ abstract". Rename "%define union_name" to "%define stype".
+ Rename method names according to previous patch.
+ (Java Scanner Interface): Describe "%code lexer" instead of
+ "%pure-parser" and "%define single_class".
+ (Java Differences): Mention "%code lexer".
+
+ * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
+ Include scanner here, using macros from tests/local.at.
+ (AT_DATA_CALC_Y): Remove final argument.
+ (_AT_CHECK_JAVA_CALC): Likewise.
+ (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
+ of %locations and %error-verbose.
+ (main): Test with and without %lex-param.
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
+ (AT_BISON_OPTION_POPDEFS): Pop it.
+
+2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ DJGPP spefic issue. Inhibit the use of disallowed characters for
+ file name genertion on Win98, WinXP, etc. These are |<>":?*\
+ and concern testsuite case 46.
+ * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
+ * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
+ * djgpp/config.bat: Inhibit the use of disallowed characters.
+
+2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Miscellaneous %define and %code cleanup.
+ * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
+ values are interpreted.
+ * doc/bison.texinfo (Decl Summary): Clean up and extend %define
+ documentation a little more.
+ * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
+ muscle_percent_define_insert, muscle_percent_code_grow): New
+ functions/macros.
+ * src/muscle_tab.h (muscle_percent_define_insert,
+ muscle_percent_code_grow): Prototype.
+ * src/parse-gram.y (prologue_declaration): Use
+ muscle_percent_define_insert and muscle_percent_code_grow when parsing
+ %define and %code directives.
+
+ Make it easy to share %define boolean variables between the front-end
+ and back-end. Though not used yet, this will be useful in the future.
+ * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
+ Bison uses of names rather than just skeleton uses of names.
+ (b4_percent_define_get, b4_percent_define_ifdef): Rename
+ b4_percent_define_skeleton_variables(VARIABLE) to
+ b4_percent_define_bison_variables(VARIABLE).
+ (b4_percent_code_get, b4_percent_code_ifdef): Rename
+ b4_percent_code_skeleton_qualifiers(QUALIFIER) to
+ b4_percent_code_bison_qualifiers(QUALIFIER).
+ (b4_check_user_names_wrap): Update for renames.
+ * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
+ muscle_percent_define_default): New functions mimicking
+ b4_percent_define_flag_if and b4_percent_define_default.
+
+ For %define variables, report locations for invalid values and
+ redefinitions.
+ * data/bison.m4 (b4_percent_define_flag_if): Read
+ b4_percent_define_loc(VARIABLE) to report the location of an invalid
+ value for VARIABLE.
+ (b4_percent_define_default): Save a special location in
+ b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
+ must later be reported as invalid.
+ * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
+ functions.
+ (muscle_percent_define_insert): Record the location of VARIABLE in
+ muscle percent_define_loc(VARIABLE), and use it to report the previous
+ location for a redefinition.
+ (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
+ (muscle_percent_define_default): Update like b4_percent_define_default.
+ (muscle_grow_user_name_list): Rename to...
+ (muscle_user_name_list_grow): ... this for consistency and use
+ muscle_location_grow.
+ * src/muscle_tab.h (muscle_location_grow): Prototype.
+ * tests/input.at (%define errors): Update expected output.
+ * tests/skeletons.at (%define boolean variables: invalid skeleton
+ defaults): New test case.
+
+2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/print.c (lookahead_set, state_default_rule): Remove.
+ (print_reductions): Replace state_default_rule invocation with
+ equivalent use of yydefact, which was computed in token_actions in
+ tables.c.
+ (print_results): Don't allocate lookahead_set.
+
+2007-02-27 Paolo Bonzini <bonzini@gnu.org>
+
+ * data/lalr1.java: Prefix all private members with yy.
+
+2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Use YYFPRINTF instead of fprintf where appropriate. Reported by
+ Sebastien Fricker at
+ <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
+ * THANKS: Add Sebastien Fricker.
+ * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
+ * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
+ accept a variable number of arguments.
+
+2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
+
+2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
+ * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
+ * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
+
+2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ Undo my 2007-02-07 change, switching back to the c-strcase module
+ introduced in the 2007-02-03 change. Bruno Haible reported that
+ the 2007-02-07 change would be dangerous in Turkish if we add a
+ language whose name contains "i", since "i" is not lowercase "I"
+ in Turkish.
+ * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
+ * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
+ c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
+ * m4/.cvsignore: Remove strcase.m4.
+ * src/getargs.c: Revert 2007-02-07 change, as follows.
+ Include c-strcase.h.
+ (language_argmatch): Use c_strcasecmp rather than strcasecmp.
+
+2007-02-11 Bruno Haible <bruno@clisp.org>
+
+ Enable the Java related testsuite tests when the only Java compiler
+ found is a gcj < 4.3. Discussed at
+ <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
+ * configure.ac (gt_JAVACOMP): Don't specify a target_version.
+
+2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/Makefile.am: Update copyright date.
+ * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
+ yypstate_new returns NULL.
+ (yypstate_new): Return NULL if malloc does.
+ * src/reader.c (packgram): Move translation of rule actions from the
+ beginning of packgram to...
+ (check_and_convert_grammar): ... here right before packgram is invoked
+ so it's easier to write more complete comments, and remove redundant
+ code.
+
+2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ As in semantic actions, make @$ in %initial-action, %destructor, and
+ %printer imply %locations.
+ * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
+ scanning @$.
+ * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
+ (@$ in %initial-action implies %locations,
+ @$ in %destructor implies %locations,
+ @$ in %printer implies %locations): ... these new test cases.
+
+2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ Undo most of the 2007-02-03 change, switching to the strcase module
+ now that gnulib strcase has been fixed.
+ * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
+ * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
+ c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
+ * m4/.cvsignore: Add strcase.m4.
+ * src/getargs.c: Revert 2007-02-03 change, as follows.
+ Don't include c-strcase.h.
+ (language_argmatch): Use strcasecmp rather than c_strcasecmp.
+ strcasecmp has "unspecified behavior" outside the POSIX locale,
+ but it works fine in practice if at least one argument is ASCII,
+ as is the case in Bison.
+
+2007-02-07 Paolo Bonzini <bonzini@gnu.org>
+
+ * tests/java.at: Skip tests if only one of javac/java is present.
+ Reported by Joel E. Denny.
+ * tests/atlocal.in: Adjust copyright years.
+
+2007-02-05 Paolo Bonzini <bonzini@gnu.org>
+
+ * data/lalr1.java (Stack): Work around old verifiers that disallow
+ access to the private fields of an inner class, from the outer class.
+ We can make Stack's fields public because user code doesn't have access
+ to the instance of Stack used by parse(). Reported by Paul Eggert.
+
+2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
+
+ * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
+ the right spot for these files?
+ * bootstrap.conf (gnulib_modules): Add c-strcase.
+ * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
+ c-strncasecmp.c.
+ * src/getargs.c: Include c-strcase.h.
+ (language_argmatch): Use c_strcasecmp rather than strcasecmp,
+ to avoid unspecified behavior.
+
+2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * doc/bison.texinfo (Decl Summary): Correct typo.
+
+2007-01-30 Paolo Bonzini <bonzini@gnu.org>
+
+ * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
+ Complain if the value does not match empty, "true" or "false".
+ * data/c++.m4: Adjust default definitions of %define variables.
+ * data/java.m4: Adjust default definitions of %define variables.
+ * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
+ to above behavior.
+ * tests/input.at (Boolean %define variables): Test new behavior.
+
+2007-01-29 Paolo Bonzini <bonzini@gnu.org>
+
+ * NEWS: Mention java.
+ * TODO: Remove things that are done.
+ * bootstrap.conf: Add javacomp-script and javaexec-script.
+ * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
+
+ * data/Makefile.am: Add new files.
+ * data/java-skel.m4: New.
+ * data/java.m4: New.
+ * data/lalr1.java: New.
+
+ * doc/bison.texinfo: Put "A Complete C++ Example" under
+ C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
+ under Other Languages.
+
+ * src/getargs.c (valid_languages): Add Java.
+ * src/getargs.h (struct bison_language): Update size of string fields.
+
+ * tests/Makefile.am: Add java.at.
+ * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
+ * tests/java.at: New.
+ * tests/testsuite.at: Include it.
+
+2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Clean up.
+ * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
+ at_directive_argv arguments so these no longer have to be global
+ variables. Also, update the implementation for the following changes.
+ (fail_for_at_directive_too_many_args,
+ fail_for_at_directive_too_few_args): Add at_directive_name argument.
+ (at_directive_name): Remove as at_directive_argv[0] will be used for
+ this now.
+ (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
+ for the directive name.
+ (at_directive_argc, at_directive_argv): Make these local within
+ skel_lex instead of global.
+ (INITIAL): Update directive start action for above changes.
+ (SC_AT_DIRECTIVE_ARG): Rename to...
+ (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
+ (SC_AT_DIRECTIVE_SKIP_WS): Update.
+ (scan_skel): Move yylex_destroy to...
+ (skel_scanner_free): ... here.
+ * tests/skeletons.at (installed skeleton file name): Rename to...
+ (installed skeleton file names): ... this.
+
+2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * ChangeLog: For changes in doc/bison.texinfo, consistently reference
+ node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
+ Summary" not "Directives".
+ * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
+ %code entry in "Decl Summary" rather than the one in "Table of Symbols"
+ since the former is now the more complete one.
+ (Prologue Alternatives): Likewise and do the same for %defines.
+ (Table of Symbols): Add summary of %code, add summary of %define, and
+ move full %code documentation to...
+ (Decl Summary): ... here for consistency with other entries in these
+ sections.
+ Move %define entry in order to keep this list alphabetized.
+ Reword %define entry a little to put less emphasis on the skeleton
+ concept, which most users shouldn't have to think about.
+
+2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ Adjust to recent gnulib changes.
+ * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
+ Add string.h, string_.h, unistd_.h, wchar_.h.
+ * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
+ * src/system.h: Don't include <stpcpy.h>; this is now done by
+ <string.h>.
+
+2007-01-23 Paolo Bonzini <bonzini@gnu.org>
+
+ Simplify implementation of unqualified %code, implement macros for
+ uniform treatment of boolean %define flags. Document %define.
+ * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
+ b4_percent_code_ifdef): New.
+ (b4_percent_code_get): Map unqualified %code to b4_percent_code().
+ * data/c++.m4: Define default value for global_tokens_and_yystype.
+ * data/glr.cc: Likewise.
+ * data/location.cc: Use b4_percent_define_flag_if.
+
+ * doc/bison.texinfo (Decl Summary): Document %define.
+
+ * src/parse-gram.y (Unqualified %code): Change muscle name to
+ b4_percent_code().
+ (content.opt): Default to empty.
+
+2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Implement support for relative and absolute skeleton file names.
+ Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
+ * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
+ (Bison Options): Document in --skeleton entry.
+ * src/output.c (output_skeleton): Use strncpy rather than strcpy since
+ full_skeleton can't necessarily hold all of pkgdatadir.
+ If the specified skeleton file name contains a `/', don't prepend
+ pkgdatadir.
+ * src/parse-gram.y (prologue_declaration): If the specified skeleton
+ file name contains a `/', prepend the grammar file directory.
+ * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
+ * skeletons.at: New file.
+ (relative skeleton file names): New test case.
+ (installed skeleton file names): New test case.
+ * tests/testsuite.at: Include skeletons.at.
+
+ * bootstrap: Update copyright to 2007.
+
+2007-01-17 Paolo Bonzini <bonzini@gnu.org>
+
+ * bootstrap: Remove occurrences of .#bootmp from the files.
+
+2007-01-17 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Calc++ Parser): Don't try to alias
+ nonterminals.
+ Use per-type %printer.
+
+2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
+ data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
+ djgpp/config.site, src/files.c, src/files.h, src/main.c,
+ src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
+ src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
+ tests/glr-regression.at, tests/input.at, tests/local.at,
+ tests/output.at, tests/torture.at: Update copyright to 2007.
+
+2007-01-16 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
+ error code.
+ (Calc++ Scanner): Exit with failure if we can't open the input
+ file.
+ Accept "-" standing for stdin.
+ (Calc++ Top Level): Print the result only if the parsing was
+ successful.
+
+2007-01-16 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
+
+2007-01-15 Paolo Bonzini <bonzini@gnu.org>
+ and Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Clean up %define and %code implementation in M4 some. Most
+ importantly, rename all related macros to be in the b4_percent_define
+ and b4_percent_code namespaces. Also, complete support for `.' in
+ %define variable names and %code qualifiers.
+ * data/bison.m4 (b4_check_user_names): Check for special
+ "SKELETON-NAMESPACE(name)" macros instead of using two nested
+ m4_foreach loops.
+ (b4_get_percent_define, b4_get_percent_code): Rename to...
+ (b4_percent_define_get, b4_percent_code_get): ... these.
+ Extend documentation with examples.
+ For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
+ b4_percent_define_skeleton_variables and
+ b4_percent_code_skeleton_qualifiers.
+ Expect any value for the %define variable `foo' to be stored in the
+ macro named `b4_percent_define(foo)'; expect any %code blocks for the
+ qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
+ expect any unqualified %code blocks to be stored in a macro named
+ `b4_percent_code_unqualified'.
+ Use m4_indir so that %define variable names and %code qualifiers can
+ contain `.', which is allowed by the grammar parser.
+ (b4_percent_define_default): New macro to set a default value for a
+ %define variable.
+ (m4_wrap): Update wrapped code, and fix some underquoting.
+ (b4_check_user_names_wrap): Update and define outside the m4_wrap.
+ Expect grammar uses of %define variables and %code qualifiers to be
+ defined in b4_percent_define_user_variables and
+ b4_percent_code_user_qualifiers.
+ * data/c++.m4: Use b4_percent_define_default rather than
+ m4_define_default. Fix some underquoting. Skeleton usage of %define
+ variable define_location_comparison now implies skeleton usage of
+ %define variable filename_type.
+ * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
+ data/push.c, data/yacc.c: Update macro names.
+ * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
+ muscle names.
+
+2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ DJGPP specific issues.
+
+ * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
+ default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
+
+2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
+ run parsers in all tests so that Valgrind is invoked during
+ maintainer-check-valgrind.
+ (Duplicate representation of merged trees): Free all semantic values.
+ (Duplicated user destructor for lookahead): Likewise.
+
+2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
+ command-line prefix.
+ * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
+ ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
+ miss Valgrind messages.
+ (Exploding the Stack Size with Malloc): Likewise.
+
projects / bison.git / blobdiff