X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/5499894828069a10d90ce4b92325017b7637682e..1b17ce8ebc0b6399b527a05f42c1a63497f2b34f:/ChangeLog?ds=sidebyside

diff --git a/ChangeLog b/ChangeLog
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--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,3333 @@
+2002-09-06  Paul Eggert  <eggert@twinsun.com>
+
+	* doc/bison.texinfo (Conditions): Make explicit that the GPL
+	exception applies only to yacc.c.  This is a modification of a
+	patch originally suggested by Akim Demaille.
+
+2002-09-06  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_copyright): Move the GPL exception comment from
+	here to...
+	* data/yacc.c: here.
+
+	* data/lalr1.cc (struct yyltype): Don't define it, since we use
+	LocationType.
+	(b4_ltype): Default to yy::Location from location.hh.
+
+2002-09-04  Jim Meyering  <jim@meyering.net>
+
+	* data/yacc.c: Guard the declaration of yytoknum also with
+	`#ifdef YYPRINT', so it is declared only when used.
+
+2002-09-04  Akim Demaille  <akim@epita.fr>
+
+	* configure.in: Rename as...
+	* configure.ac: this.
+	Bump to 1.49c.
+
+2002-09-04  Akim Demaille  <akim@epita.fr>
+
+	* src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
+	* src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
+	translate maintainer only messages.
+
+2002-08-12  Paul Eggert  <eggert@twinsun.com>
+
+	Version 1.49b.
+
+	* Makefile.am (SUBDIRS): Remove intl.
+	(DISTCLEANFILES): Remove.
+	* NEWS: Mention that GNU M4 is now required.  Clarify what is
+	meant by "larger grammars".  Mention the pt_BR translation.
+	* configure.in (AC_CHECK_DECLS): Add getenv, getopt.
+	(AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
+	Bump version from 0.11.2 to 0.11.5.
+	(BISON_PREREQ_STAGE): Remove.
+	(AM_GNU_GETTEXT): Use external gettext.
+	(AC_OUTPUT): Remove intl/Makefile.
+
+	* config/depcomp, config/install-sh: Sync with Automake 1.6.3.
+
+	* data/glr.c: Include string.h, for strlen.
+	(yyreportParseError): Use size_t for yysize.
+	(yy_yypstack): No longer nested inside yypstates, as nested
+	functions are not portable.  Do not assume size_t is the
+	same width as int.
+	(yypstates): Do not assume that ptrdiff_t is the same width
+	as int, and similarly for yyposn and YYINDEX.
+
+	* data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
+
+	* lib/Makefile.am (INCLUDES): Do not include from the intl
+	directory, which has been removed.
+	* src/Makefile.am (INCLUDES): Likewise.
+
+	* lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
+	(bitsets_sources, additional_bitsets_sources, timevars_sources):
+	New vars.
+
+	* lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
+	* tests/Makefile.am (EXTRA_DIST): Likewise.
+
+	* lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
+	Do not assume that bitset_windex is the same width as unsigned.
+
+	* lib/abitset.c (abitset_unused_clear): Do not assume that
+	bitset_word is the same width as int.
+	* lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
+	* lib/bitset.h (bitset_set, bitset_reset): Likewise.
+	* lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
+	* lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
+	* lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
+
+	* lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
+	portability to one's complement hosts!).
+	* lib/ebitset.c (ebitset_op1): Likewise.
+	* lib/lbitset.c (lbitset_op1): Likewise.
+
+	* lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
+	* lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
+	lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
+	Sync with fileutils.
+	* lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
+	lib/gettext.h: Sync with diffutils.
+
+	* lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
+	lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
+
+	* lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
+	PROTOTYPES to check for prototypes, and "defined __STDC__" to
+	check for void *.
+
+	* lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
+	size_t; the old version tried to do this but casted improperly.
+	(bitset_bindex, bitset_windex): Now size_t, not unsigned long.
+	(bitset_test): Now returns int, not unsigned long.
+
+	* lib/bitset_stats.c: Include "gettext.h".
+	(_): New macro.
+	(bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
+	name locals "index", as it generates unnecessary warnings on some
+	hosts that have an "index" function.
+
+	* lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
+	bitset_stats_read, bitset_stats_write): Wrap strings in _() if
+	they need translation.
+	* src/LR0.c (state_list_append, new_itemsets, get_state,
+	append_states, generate_states): Likewise.
+	* src/assoc.c (assoc_to_string): Likewise.
+	* src/closure.c (print_closure, set_firsts, closure): Likewise.
+	* src/gram.c (grammar_dump): Likewise.
+	* src/injections.c (injections_compute): Likewise.
+	* src/lalr.c (lookaheads_print): Likewise.
+	* src/relation.c (relation_transpose): Likewise.
+	* src/scan-gram.l: Likewise.
+	* src/tables.c (table_grow, pack_vector): Likewise.
+
+	* m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
+	glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
+	* m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
+	* m4/mbstate_t.m4: Sync with fileutils.
+	* m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
+
+	* po/LINGUAS: Add pt_BR.
+	* po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
+	src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
+	lib/timevar.c.
+	Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
+	manual recommends.
+	Similarly, use src/scan-gram.l instead of src/scan-gram.c.
+
+	* src/complain.c (strerror_r): Remove decl; not needed.
+	(strerror): Use same pattern as ../lib/error.c.
+
+	* src/files.c, src/files.h (compute_header_macro): Remove; unused.
+
+	* src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
+
+	* src/main.c (main): Cast result of bindtextdomain and textdomain
+	to void, to avoid a GCC warning when --disable-nls is in effect.
+
+	* src/scan-gram.l: Use strings rather than escapes when possible,
+	to minimize the number of warnings from xgettext.
+	(handle_action_dollar, handle_action_at): Don't use isdigit,
+	as it mishandles negative chars and it may not work as expected
+	outside the C locale.
+
+	* src/symtab.c (symbol_get): Don't cast LHS of an assignment;
+	this is a GCC extension and is not portable to other compilers.
+
+	* src/system.h (alloca): Use same pattern as ../lib/error.c.
+	Do not include <ctype.h>; no longer needed.
+	Do not include <malloc.h>; no longer needed (and generates
+	warnings on OpenBSD 3.0).
+
+	* tests/cxx-type.at (yylex): Do not pass signed char to isupper;
+	it's not portable.
+
+	* tests/regression.at: Do not use 'cc -c input.c -o input';
+	Sun C rejects this.  Instead, use 'cc -c input.c -o input.o'.
+
+	* tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
+	exit status as failure, not just exit status 1.  Sun C exits
+	with status 2 sometimes.
+
+	* tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
+	Use it for the two large tests.
+
+2002-08-02  Akim Demaille  <akim@epita.fr>
+
+	* src/conflicts.c (conflicts_output): Don't output rules never
+	reduced here, since anyway that computation doesn't work.
+	* src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
+	(rule_useless_p, rule_never_reduced_p): New.
+	(grammar_rules_partial_print): Use a filter instead of a range.
+	Display the title only if needed.
+	(grammar_rules_print): Adjust.
+	(grammar_rules_never_reduced_report): New.
+	* src/tables.c (action_row): Move the computation of rules never
+	reduced to...
+	(token_actions): here.
+	* src/main.c (main): Make the parser before making the report, so
+	that rules never reduced are computed.
+	Call grammar_rules_never_reduced_report.
+	* src/print.c (print_results): Report rules never reduced.
+	* tests/conflicts.at, tests/reduce.at: Adjust.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+	Instead of attaching lookaheads and duplicating the rules being
+	reduced by a state, attach the lookaheads to the reductions.
+
+	* src/state.h (state_t): Remove the `lookaheads',
+	`lookaheads_rule' member.
+	(reductions_t): Add a `lookaheads' member.
+	Use a regular array for the `rules'.
+	* src/state.c (reductions_new): Initialize the lookaheads member
+	to 0.
+	(state_rule_lookaheads_print): Adjust.
+	* src/state.h, src/state.c (state_reductions_find): New.
+	* src/conflicts.c (resolve_sr_conflict, set_conflicts)
+	(count_rr_conflicts): Adjust.
+	* src/lalr.c (LArule): Remove.
+	(add_lookback_edge): Adjust.
+	(state_lookaheads_count): New.
+	(states_lookaheads_initialize): Merge into...
+	(initialize_LA): this.
+	(lalr_free): Adjust.
+	* src/main.c (main): Don't free nullable and derives too early: it
+	is used by --verbose.
+	* src/print.c, src/print_graph.c, src/tables.c: Adjust.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+	* src/derives.h, src/derives.c (derives): A `rule_t***' instead of
+	`rule_number_t**'.
+	(set_derives, free_derives): Rename as...
+	(derives_compute, derives_free): this.
+	Adjust all dependencies.
+	* src/nullable.c (set_nullable, free_nullable): Rename as...
+	(nullable_compute, nullable_free): these.
+	(rule_list_t): Store rule_t *, not rule_number_t.
+	* src/state.c (state_rule_lookaheads_print): Directly compare rule
+	pointers, instead of their numbers.
+	* src/main.c (main): Call nullable_free, and derives_free earlier,
+	as they were lo longer used.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+	* lib/timevar.c (get_time): Include children time.
+	* src/lalr.h (LA, LArule): Don't export them: used with the
+	state_t.
+	* src/lalr.c (LA, LArule): Static.
+	* src/lalr.h, src/lalr.c (lalr_free): New.
+	* src/main.c (main): Call it.
+	* src/tables.c (pack_vector): Check whether loc is >= to the
+	table_size, not >.
+	(pack_tables): Don't free froms, tos, conflict_tos, and pos...
+	(tables_generate): do it, since that's also it which allocates
+	them.
+	Don't free LA and LArule, main does.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+	Separate parser tables computation and output.
+
+	* src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
+	(conflict_list, conflict_list_cnt, table, check, table_ninf)
+	(yydefgoto, yydefact, high): Move to...
+	* src/tables.h, src/tables.c: here.
+	* src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+	(VECTOR_NUMBER_MIN, state_number_to_vector_number)
+	(symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
+	(froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
+	(ACTION_MIN, actrow, order, nentries, pos, conflrow)
+	(conflict_list_free, table_size, lowzero, table_grow, conflict_row)
+	(action_row, save_row, token_actions, save_column, default_goto)
+	(goto_actions, sort_actions, matching_state, pack_vector)
+	(table_ninf_remap, pack_table, prepare_actions): Move to...
+	* src/tables.c: here.
+	* src/tables.h, src/tables.c(tables_generate, tables_free): New.
+	* src/output.c (token_actions, output_base, output_conflicts)
+	(output_check): Merge into...
+	(prepare_actions): this.
+	(actions_output): Rename as...
+	(user_actions_output): this.
+	* src/main.c (main): Call tables_generate and tables_free.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+	Steal GCC's --time-report support.
+
+	* lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
+	stolen/adjusted from GCC.
+	* m4/stage.m4: Remove time related checks.
+	* m4/timevar.m4: New.
+	* configure.in: Adjust.
+	* src/system.h: Adjust to using timevar.h.
+	* src/getargs.h, src/getargs.c: Support trace_time for
+	--trace=time.
+	* src/main.c (stage): Remove.
+	(main): Replace `stage' invocations with timevar calls.
+	* src/output.c: Insert pertinent timevar calls.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+	Let --trace have arguments.
+
+	* src/getargs.h (enum trace_e): New.
+	* src/getargs.c (trace_args, trace_types, trace_argmatch): New.
+	(long_options, short_options): --trace/-T takes an optional
+	argument.
+	Change all the uses of trace_flag to reflect the new flags.
+	* tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
+
+	Strengthen `stage' portability.
+
+	* m4/stage.m4 (BISON_PREREQ_STAGE): New.
+	* configure.in: Use it.
+	Don't check for malloc.h and sys/times.h.
+	* src/system.h: Include them when appropriate.
+	* src/main.c (stage): Compile only when mallinfo, struct mallinfo,
+	times and struct tms are available.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+	In verbose parse error message, don't report `error' as an
+	expected token.
+	* tests/actions.at (Printers and Destructors): Adjust.
+	* tests/calc.at (Calculator $1): Adjust.
+	* data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
+	error message, do not report the parser accepts the error token in
+	that state.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+	Normalize conflict related messages.
+
+	* src/complain.h, src/complain.c (warn, complain): New.
+	* src/conflicts.c (conflicts_print): Use them.
+	(conflict_report_yacc): New, extracted from...
+	(conflicts_print): here.
+	* tests/conflicts.at, tests/existing.at: Adjust.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+	Report rules which are never reduced by the parser: those hidden
+	by conflicts.
+
+	* src/LR0.c (save_reductions): Don't make the final state too
+	different: save its reduction (accept) instead of having a state
+	without any action (no shift or goto, no reduce).
+	Note: the final state is now a ``regular'' state, i.e., the
+	parsers now contain `reduce 0' as default reduction.
+	Nevertheless, since they decide to `accept' when yystate =
+	final_state, they still will not reduce rule 0.
+	* src/print.c (print_actions, print_reduction): Adjust.
+	* src/output.c (action_row): Track reduced rules.
+	(token_actions): Report rules never reduced.
+	* tests/conflicts.at, tests/regression.at: Adjust.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+	`stage' was accidently included in a previous patch.
+	Initiate its autoconfiscation.
+
+	* configure.in: Look for malloc.h and sys/times.h.
+	* src/main.c (stage): Adjust.
+	Report only when trace_flag.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
+	state_number_t.
+	(errs_t): symbol_t*, not symbol_number_t.
+	(reductions_t): rule_t*, not rule_number_t.
+	(FOR_EACH_SHIFT): New.
+	* src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
+	* src/print.c, src/print_graph.c: Adjust.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+	Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
+
+	* src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
+	(endtoken, accept): these.
+	* src/reader.c (reader): Set endtoken's default tag to "$end".
+	Set undeftoken's tag to "$undefined" instead of "$undefined.".
+	* doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
+	Adjust.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (reduce_grammar): When the language is empty,
+	complain about the start symbol, not the axiom.
+	Use its location.
+	* tests/reduce.at (Empty Language): New.
+
+2002-07-26  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.h, src/reader.c (gram_error): ... can't get
+	yycontrol without making too strong assumptions on the parser
+	itself.
+	* src/output.c (prepare_tokens): Use the real 0th value of
+	token_translations instead of `0'.
+	* src/parse-gram.y (yyerror): Don't rely on yycontrol being
+	visible here.
+	* data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
+	for the time being: %locations ought to provide it to yyerror.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
+	* doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	Stop storing rules from 1 to nrules + 1.
+
+	* src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
+	* src/nullable.c, src/output.c, src/print.c, src/reader.c
+	* src/reduce.c: Allocate and free from &rules[0], not &rules[1].
+	Iterate from 0 to nrules.
+	Use rule_number_as_item_number and item_number_as_rule_number.
+	Adjust to `derive' now containing possibly 0.
+	* src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
+	Handle the `- 1' part in rule numbers from/to item numbers.
+	* src/conflicts.c (log_resolution): Fix the message which reversed
+	shift and reduce.
+	* src/output.c (action_row): Initialize default_rule to -1.
+	(token_actions): Adjust.
+	* tests/sets.at (Nullable, Firsts): Fix the previously bogus
+	expected output.
+	* tests/conflicts.at (Resolved SR Conflicts): Likewise.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
+	(b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
+	(b4_c_knr_arg_decl): New.
+	* data/yacc.c: Use it to define yysymprint, yydestruct, and
+	yyreport_parse_error.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c (yyreport_parse_error): New, extracted from...
+	(yyparse): here.
+	(yydestruct, yysymprint): Move above yyparse.
+	Be K&R compliant.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
+	replace...
+	(b4_sint_type, b4_uint_type): these.
+	* data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (TIEM_NUMBER_MAX): New.
+	(item_number_of_rule_number, rule_number_of_item_number): Rename
+	as...
+	(rule_number_as_item_number, item_number_as_rule_number): these.
+	Adjust dependencies.
+	* src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+	(VECTOR_NUMBER_MIN, state_number_to_vector_number)
+	(symbol_number_to_vector_number): New.
+	(order): Of vector_number_t* type.
+	(base_t, BASE_MAX, BASE_MIN): New.
+	(froms, tos, width, pos, check): Of base_t type.
+	(action_number_t, ACTION_MIN, ACTION_MAX): New.
+	(actrow): Of action_number_t type.
+	(conflrow): Of unsigned int type.
+	(table_ninf, base_ninf): New.
+	(GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
+	(muscle_insert_int_table, muscle_insert_base_table)
+	(muscle_insert_rule_number_table): New.
+	(prepare_tokens): Output `toknum' as int_table.
+	(action_row): Returns a rule_number_t.
+	Use ACTION_MIN, not SHRT_MIN.
+	(token_actions): yydefact is rule_number_t*.
+	(table_ninf_remap): New.
+	(pack_table): Use it for `base' and `table'.
+	* data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
+	replaced with...
+	(YYPACT_NINF, YYTABLE_NINF): these.
+	(yypact, yytable): Compute their types instead of hard-coded
+	`short'.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-19  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l (id): Can start with an underscore.
+
+2002-07-16  Akim Demaille  <akim@epita.fr>
+
+	* src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
+	Adjust all former `associativity' dependencies.
+	* src/symtab.c (symbol_new): Default associativity is `undef', not
+	`right'.
+	(symbol_check_alias_consistence): Adjust.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo: Properly set the ``header'' part.
+	Use @dircategory ``GNU programming tools'' as per Texinfo's
+	documentation.
+	Use @copying.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* lib/quotearg.h: Protect against multiple inclusions.
+	* src/location.h (location_t): Add a `file' member.
+	(LOCATION_RESET, LOCATION_PRINT): Adjust.
+	* src/complain.c (warn_at, complain_at, fatal_at): Drop
+	`error_one_per_line' support.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* src/complain.h, src/complain.c (warn, complain): Remove, unused.
+	* src/reader.c (lineno): Remove.
+	Adjust all dependencies.
+	(get_merge_function): Take a location and use complain_at.
+	* src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
+	* tests/regression.at (Invalid inputs, Mixing %token styles):
+	Adjust.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-gram.y (rules_or_grammar_declaration): Add an error
+	recovery rule, and forbid extensions when --yacc.
+	(gram_error): Use complain_at.
+	* src/reader.c (reader): Exit if there were parse errors.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* tests/synclines.at (AT_SYNCLINES_COMPILE): New.
+	(AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
+	Reported by R Blake <blakers@mac.com>.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c: Output the copyright notive in the header.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (froms, tos): Are state_number_t.
+	(save_column): sp, sp1, and sp2 are state_number_t.
+	(prepare): Rename `final' as `final_state_number', `nnts' as
+	`nterms_number', `nrules' as `rules_number', `nstates' as
+	`states_number', and `ntokens' as `tokens_number'.  Remove `nsym',
+	unused.
+	* data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
+	* data/lalr1.cc (nsym_): Remove, unused.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.h, src/lalr.c (goto_number_t): New.
+	* src/lalr.c (goto_list_t): New.
+	Propagate them.
+	* src/nullable.c (rule_list_t): New.
+	Propagate.
+	* src/types.h: Remove.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (print_fderives): Use rule_rhs_print.
+	* src/derives.c (print_derives): Use rule_rhs_print.
+	(rule_list_t): New, replaces `shorts'.
+	(set_derives): Add comments.
+	* tests/sets.at (Nullable, Firsts): Adjust.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (prepare_actions): Free `tally' and `width'.
+	(prepare_actions): Allocate and free `order'.
+	* src/symtab.c (symbols_free): Free `symbols'.
+	* src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
+	* src/output.c (m4_invoke): Move to...
+	* src/scan-skel.l: here.
+	(<<EOF>>): Close yyout, and free its name.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	Fix some memory leaks, and fix a bug: state 0 was examined twice.
+
+	* src/LR0.c (new_state): Merge into...
+	(state_list_append): this.
+	(new_states): Merge into...
+	(generate_states): here.
+	(set_states): Don't ensure a proper `errs' state member here, do it...
+	* src/conflicts.c (conflicts_solve): here.
+	* src/state.h, src/state.c: Comment changes.
+	(state_t): Rename member `shifts' as `transitions'.
+	Adjust all dependencies.
+	(errs_new): For consistency, also take the values as argument.
+	(errs_dup): Remove.
+	(state_errs_set): New.
+	(state_reductions_set, state_transitions_set): Assert that no
+	previous value was assigned.
+	(state_free): New.
+	(states_free): Use it.
+	* src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
+	temporary storage: use `errs' and `nerrs' as elsewhere.
+	(set_conflicts): Allocate and free this `errs'.
+
+2002-07-02  Akim Demaille  <akim@epita.fr>
+
+	* lib/libiberty.h: New.
+	* lib: Update the bitset implementation from upstream.
+	* src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
+	* src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
+	* src/main.c: Adjust bitset stats calls.
+
+2002-07-01  Paul Eggert  <eggert@twinsun.com>
+
+	* src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
+	char, so that negative chars don't collide with $.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	Have the GLR tests be `warning' checked, and fix the warnings.
+
+	* data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
+	(yyuserAction, yyreportAmbiguity): `Use' all the arguments.
+	(yyremoveDeletes): `yyi' and `yyj' are size_t.
+	Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
+	(yyaddDeferredAction): static.
+	(yyglrReduce): yyi, yyk, amd yyposn are size_t.
+	(yyreportParseError): yyprefix is const.
+	yytokenp is used only when verbose.
+	(yy__GNUC__): Replace with __GNUC__.
+	(yypdumpstack): yyi is size_t.
+	(yypreference): Un-yy local variables and arguments, to avoid
+	clashes with `yyr1'.  Anyway, we are not in the user name space.
+	(yytname_size): be an int, as is compared with ints.
+	* tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
+	Use them.
+	* tests/cxx-gram.at: Use quotation to protect $1.
+	Use AT_COMPILE to enable warnings hunts.
+	Prototype yylex and yyerror.
+	`Use' argc.
+	Include `string.h', not `strings.h'.
+	Produce and prototype stmtMerge only when used.
+	yylex takes a location.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	We spend a lot of time in quotearg, in particular when --verbose.
+
+	* src/symtab.c (symbol_get): Store a quoted version of the key.
+	(symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
+	Adjust all callers.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h (reductions_t): Rename member `nreds' as num.
+	(errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
+	* src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
+	(SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
+	(shifts_to): Rename as...
+	(transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
+	(TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
+	(TRANSITION_IS_DISABLED, transitions_to): these.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/print.c (print_shifts, print_gotos): Merge into...
+	(print_transitions): this.
+	(print_transitions, print_errs, print_reductions): Align the
+	lookaheads columns.
+	(print_core, print_transitions, print_errs, print_state,
+	print_grammar): Output empty lines separator before, not after.
+	(state_default_rule_compute): Rename as...
+	(state_default_rule): this.
+	* tests/conflicts.at (Defaulted Conflicted Reduction),
+	(Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
+	* tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	Display items as we display rules.
+
+	* src/gram.h, src/gram.c (rule_lhs_print): New.
+	* src/gram.c (grammar_rules_partial_print): Use it.
+	* src/print.c (print_core): Likewise.
+	* tests/conflicts.at (Defaulted Conflicted Reduction),
+	(Unresolved SR Conflicts): Adjust.
+	(Unresolved SR Conflicts): Adjust and rename as...
+	(Resolved SR Conflicts): this, as was meant.
+	* tests/regression.at (Web2c Report): Adjust.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/print.c (state_default_rule_compute): New, extracted from...
+	(print_reductions): here.
+	Pessimize, but clarify the code.
+	* tests/conflicts.at (Defaulted Conflicted Reduction): New.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (action_row): Let default_rule be always a rule
+	number.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (print_firsts, print_fderives, closure):
+	Use BITSET_EXECUTE.
+	* src/lalr.c (lookaheads_print): Likewise.
+	* src/state.c (state_rule_lookaheads_print): Likewise.
+	* src/print_graph.c (print_core): Likewise.
+	* src/print.c (print_reductions): Likewise.
+	* src/output.c (action_row): Likewise.
+	Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/print_graph.c: Use report_flag.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (traverse, digraph, matrix_print, transpose): Move
+	to...
+	* src/relation.h, src/relation.c (traverse, relation_digraph)
+	(relation_print, relation_transpose): New.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (shifts_to): New.
+	* src/lalr.c (build_relations): Use it.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
+	(item_number_of_rule_number, rule_number_of_item_number): New.
+	* src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
+	* src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
+	* src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
+	Propagate their use.
+	Much remains to be done, in particular wrt `shorts' from types.h.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.c (symbol_new): Initialize the `printer' member.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (save_reductions): Remove, replaced by...
+	* src/state.h, src/state.c (state_reductions_set): New.
+	(reductions, errs): Rename as...
+	(reductions_t, errs_t): these.
+	Adjust all dependencies.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (state_list_t, state_list_append): New.
+	(first_state, last_state): Now symbol_list_t.
+	(this_state): Remove.
+	(new_itemsets, append_states, save_reductions): Take a state_t as
+	argument.
+	(set_states, generate_states): Adjust.
+	(save_shifts): Remove, replaced by...
+	* src/state.h, src/state.c (state_shifts_set): New.
+	(shifts): Rename as...
+	(shifts_t): this.
+	Adjust all dependencies.
+	* src/state.h (state_t): Remove the `next' member.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/vcg.c (quote): Use slot 2, since we often pass symbol tag
+	escaped in slot 0.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	Use hash.h for the state hash table.
+
+	* src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
+	(allocate_storage): Use state_hash_new.
+	(free_storage): Use state_hash_free.
+	(new_state, get_state): Adjust.
+	* src/lalr.h, src/lalr.c (states): Move to...
+	* src/states.h (state_t): Remove the `link' member, no longer
+	used.
+	* src/states.h, src/states.c: here.
+	(state_hash_new, state_hash_free, state_hash_lookup)
+	(state_hash_insert, states_free): New.
+	* src/states.c (state_table, state_compare, state_hash): New.
+	* src/output.c (output_actions): Do not free states now, since we
+	still need to know the final_state number in `prepare', called
+	afterwards.  Do it...
+	* src/main.c (main): here: call states_free after `output'.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (state_new): New, extracted from...
+	* src/LR0.c (new_state): here.
+	* src/state.h (STATE_ALLOC): Move to...
+	* src/state.c: here.
+	* src/LR0.h, src/LR0.c (nstates, final_state): Move to...
+	* src/state.h, src/state.c: here.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (gensym): Rename as...
+	* src/symtab.h, src/symtab.c (dummy_symbol_get): this.
+	(getsym): Rename as...
+	(symbol_get): this.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h (state_number_t, STATE_NUMBER_MAX): New.
+	* src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
+	* src/output.c, src/print.c, src/print_graph.c: Propagate.
+	* src/LR0.h, src/LR0.h (final_state): Is a state_t*.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	Make the test suite pass with warnings checked.
+
+	* tests/actions.at (Printers and Destructors): Improve.
+	Avoid unsigned vs. signed issues.
+	* tests/calc.at: Don't exercise the scanner here, do it...
+	* tests/input.at (Torturing the Scanner): here.
+
+2002-06-28  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/glr.c: Correct typo in Emacs-mode directive.  Slightly
+	reorganize first lines parallel to yacc.c.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
+	(b4_token_enum, b4_token_defines): New, factored from...
+	* data/lalr1.cc, data/yacc.c, glr.c: here.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
+	unused variables.
+	* src/output.c (merger_output): static.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.h:	s/grammer_current_rule_merge_set/grammar_.../.
+	* src/conflicts.c (conflicts_total_count): `i' is unsigned, to
+	pacify GCC.
+	* src/output.c (save_row): Initialize all the variables to pacify GCC.
+
+2002-06-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	Accumulated changelog for new GLR parsing features.
+
+	* src/conflicts.c (count_total_conflicts): Change name to
+	conflicts_total_count.
+	* src/conflicts.h: Ditto.
+	* src/output.c (token_actions): Use the new name.
+	(output_conflicts): Change conflp => conflict_list_heads, and
+	confl => conflict_list for better readability.
+	* data/glr.c: Use the new names.
+	* NEWS: Add self to GLR announcement.
+
+	* src/reader.c (free_merger_functions): Cleanup: XFREE->free.
+
+	* doc/bison.texinfo (GLR Parsers): Make corrections suggested by
+	Akim Demaille.
+
+	* data/bison.glr: Change name to glr.c
+	* data/glr.c: Renamed from bison.glr.
+	* data/Makefile.am: Add glr.c
+
+	* src/getargs.c:
+
+	* src/symlist.h:  Add dprec and merger fields to symbol_list_s.
+	* src/symlist.c	(symbol_list_new): Initialize dprec and merger fields.
+
+	Originally 2002-06-16  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/bison.glr: Be sure to restore the
+	current #line when returning to the skeleton contents after having
+	exposed the input file's #line.
+
+	Originally 2002-06-13  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/bison.glr: Bring up to date with changes to bison.simple.
+
+	Originally 2002-06-03  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/bison.glr: Correct definitions that use b4_prefix.
+	Various reformatting.
+	(GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
+	(yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
+	yytokenp argument; now part of stack.
+	(yychar): Define to behave as documented.
+	(yyclearin): Ditto.
+
+	Originally 2002-05-14  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* src/reader.h: Add declaration for free_merger_functions.
+
+	* src/reader.c (merge_functions): New variable.
+	(get_merge_function): New function.
+	(free_merger_functions): New function.
+	(readgram): Check for %prec that is not followed by a symbol.
+	Handle %dprec and %merge declarations.
+	(packgram): Initialize dprec and merger fields in rules array.
+
+	* src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
+	conflict_list_cnt, conflict_list_free): New variables.
+	(table_grow): Also grow conflict_table.
+	(prepare_rules): Output dprec and merger tables.
+	(conflict_row): New function.
+	(action_row): Output conflict lists for GLR parser.  Don't use
+	default reduction in conflicted states for GLR parser so that there
+	are spaces for the conflict lists.
+	(save_row): Also save conflict information.
+	(token_actions): Allocate conflict list.
+	(merger_output): New function.
+	(pack_vector): Pack conflict table, too.
+	(output_conflicts): New function to output yyconflp and yyconfl.
+	(output_check): Allocate conflict_tos.
+	(output_actions): Output conflict tables, also.
+	(output_skeleton): Output b4_mergers definition.
+	(prepare): Output b4_max_rhs_length definition.
+	Use 'bison.glr' as default skeleton for GLR parsers.
+
+	* src/gram.c (glr_parser): New flag.
+	(grammar_free): Call free_merger_functions.
+
+	* src/conflicts.c (count_rr_conflicts): Augment to optionally count
+	all pairs of conflicting reductions, rather than just all tokens
+	causing conflicts.  Needed to size conflict tables.
+	(conflicts_output): Modify call to count_rr_conflicts for new
+	interface.
+	(conflicts_print): Ditto.
+	(count_total_conflicts): New function.
+
+	* src/reader.h (merger_list): New type.
+	(merge_functions): New variable.
+
+	* src/lex.h (tok_dprec, tok_merge): New token types.
+
+	* src/gram.h (rule_s): Add dprec and merger fields.
+	(glr_parser): New flag.
+
+	* src/conflicts.h (count_total_conflicts): New function.
+
+	* src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
+
+	* doc/bison.texinfo (Generalized LR Parsing): New section.
+	(GLR Parsers): New section.
+	(Language and Grammar): Mention GLR parsing.
+	(Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
+	Correct typo ("tge" -> "the").
+
+	* data/bison.glr: New skeleton for GLR parsing.
+
+	* tests/cxx-gram.at: New tests for GLR parsing.
+
+	* tests/testsuite.at: Include cxx-gram.at.
+
+	* tests/Makefile.am: Add cxx-gram.at.
+
+	* src/parse-gram.y:
+
+	* src/scan-gram.l: Add %dprec, %glr-parser, %merge.
+
+	* src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
+
+2002-06-27  Akim Demaille  <akim@epita.fr>
+
+	* src/options.h, src/options.c: Remove.
+	* src/getargs.c (short_options, long_options): New.
+
+2002-06-27  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple, data/bison.c++: Rename as...
+	* data/yacc.c, data/lalr1.cc: these.
+	* doc/bison.texinfo (Environment Variables): Remove.
+
+2002-06-25  Raja R Harinath  <harinath@cs.umn.edu>
+
+	* src/getargs.c (report_argmatch): Initialize strtok().
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (b4_symbol_actions): New, replaces...
+	(b4_symbol_destructor, b4_symbol_printer): these.
+	(yysymprint): Be sure to call YYPRINT only for tokens, and using
+	user token numbers.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (yydestructor): Rename as...
+	(yydestruct): this.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.h, src/symtab.c (symbol_type_set)
+	(symbol_destructor_set, symbol_precedence_set): The location is
+	the last argument.
+	Adjust all callers.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
+	internals.
+	* src/reader.h, src/reader.c (grammar_current_rule_prec_set):
+	Takes a location.
+	* src/symtab.h, src/symtab.c (symbol_class_set)
+	(symbol_user_token_number_set): Likewise.
+	Adjust all callers.
+	Promote complain_at.
+	* tests/input.at (Type Clashes): Adjust.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (YYLEX): Fix the declaration when
+	%pure-parser.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (yysymprint): Don't print the token number,
+	just its name.
+	* tests/actions.at (Destructors): Rename as...
+	(Printers and Destructors): this.
+	Also exercise %printer.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (YYDSYMPRINT): New.
+	Use it to remove many of the #if YYDEBUG/if (yydebug).
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.h, src/symtab.c (symbol_t): printer and
+	printer_location are new members.
+	(symbol_printer_set): New.
+	* src/parse-gram.y (PERCENT_PRINTER): New token.
+	Handle its associated rule.
+	* src/scan-gram.l: Adjust.
+	(handle_destructor_at, handle_destructor_dollar): Rename as...
+	(handle_symbol_code_at, handle_symbol_code_dollar): these.
+	* src/output.c (symbol_printers_output): New.
+	(output_skeleton): Call it.
+	* data/bison.simple (yysymprint): New.  Cannot be named yyprint
+	since there are already many grammar files with a user `yyprint'.
+	Replace the calls to YYPRINT to calls to yysymprint.
+	* tests/calc.at: Adjust.
+	* tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
+	taking advantage of parser very internal details (stack size!).
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l: Complete the scanner with the missing patterns
+	to pacify Flex.
+	Use `quote' and `symbol_tag_get' where appropriate.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+	* tests/actions.at (Destructors): Augment to test locations.
+	* data/bison.simple (yydestructor): Pass it the current location
+	if locations are enabled.
+	Prototype only when __STDC__ or C++.
+	Change the argument names to move into the yy name space: there is
+	user code here.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (b4_pure_if): New.
+	Use it instead of #ifdef YYPURE.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (b4_location_if): New.
+	Use it instead of #ifdef YYLSP_NEEDED.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+	Prepare @$ in %destructor, but currently don't bind it in the
+	skeleton, as %location use is not cleaned up yet.
+
+	* src/scan-gram.l (handle_dollar, handle_destructor_at)
+	(handle_action_at): New.
+	(handle_at, handle_action_dollar, handle_destructor_dollar): Take
+	a braced_code_t and a location as additional arguments.
+	(handle_destructor_dollar): Instead of requiring `b4_eval', just
+	unquote one when outputting `b4_dollar_dollar'.
+	Adjust callers.
+	* data/bison.simple (b4_eval): Remove.
+	(b4_symbol_destructor): Adjust.
+	* tests/input.at (Invalid @n): Adjust.
+
+2002-06-19  Zack Weinberg  <zack@codesourcery.com>
+
+	* doc/bison.texinfo: Document ability to have multiple
+	prologue sections.
+
+2002-06-18  Akim Demaille  <akim@epita.fr>
+
+	* src/files.c (compute_base_names): When computing the output file
+	names from the input file name, strip the directory part.
+
+2002-06-18  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple.new: Comment changes.
+	Reported by Andreas Schwab.
+
+2002-06-18  Matt Kraai  <kraai@alumni.cmu.edu>
+
+	* data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
+	there are no `label `yyoverflowlab' defined but not used' warnings
+	when yyoverflow is defined.
+
+2002-06-18  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
+	new member.
+	(symbol_destructor_set): Adjust.
+	* src/output.c (symbol_destructors_output): Output the destructor
+	locations.
+	Output the symbol name.
+	* data/bison.simple (b4_symbol_destructor): Adjust.
+
+2002-06-18  Cris Bailiff  <c.bailiff@awayweb.com>
+	and Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
+	what's left on the stack when the error recovery hits EOF.
+	* tests/actions.at (Destructors): Complete to exercise this case.
+
+2002-06-17  Akim Demaille  <akim@epita.fr>
+
+	* data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
+	arguments is really empty, not only equal to `[]'.
+	* src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
+	member.
+	(symbol_destructor_set): New.
+	* src/output.c (symbol_destructors_output): New.
+	* src/reader.h (brace_code_t, current_braced_code): New.
+	* src/scan-gram.l (BRACED_CODE): Use it to branch on...
+	(handle_dollar): Rename as...
+	(handle_action_dollar): this.
+	(handle_destructor_dollar): New.
+	* src/parse-gram.y (PERCENT_DESTRUCTOR): New.
+	(grammar_declaration): Use it.
+	* data/bison.simple (yystos): Is always defined.
+	(yydestructor): New.
+	* tests/actions.at (Destructors): New.
+	* tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
+
+2002-06-17  Akim Demaille  <akim@epita.fr>
+
+	* src/symlist.h, src/symlist.c (symbol_list_length): New.
+	* src/scan-gram.l (handle_dollar, handle_at): Compute the
+	rule_length only when needed.
+	* src/output.c (actions_output, token_definitions_output): Output
+	the full M4 block.
+	* src/symtab.c: Don't access directly to the symbol tag, use
+	symbol_tag_get.
+	* src/parse-gram.y: Use symbol_list_free.
+
+2002-06-17  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.h, src/reader.c (symbol_list, symbol_list_new)
+	(symbol_list_prepend, get_type_name): Move to...
+	* src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
+	(symbol_list_prepend, symbol_list_n_type_name_get): here.
+	Adjust all callers.
+	(symbol_list_free): New.
+	* src/scan-gram.l (handle_dollar): Takes a location.
+	* tests/input.at (Invalid $n): Adjust.
+
+2002-06-17  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.h, src/reader.c (symbol_list_new): Export it.
+	(symbol_list_prepend): New.
+	* src/parse-gram.y (%union): `list' is a new member.
+	(symbols.1): New, replaces...
+	(terms_to_prec.1, nterms_to_type.1): these.
+	* src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
+	Take a location as additional argument.
+	Adjust all callers.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-gram.y: Move %token in the declaration section so that
+	we don't depend upon CVS Bison.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (state_rule_lookaheads_print): New.
+	* src/print.c (print_core): Use it.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	* src/conflicts.c (log_resolution): Accept the rule involved in
+	the sr conflicts instead of the lookahead number that points to
+	that rule.
+	(flush_reduce): Accept the current lookahead vector as argument,
+	instead of the index in LA.
+	(resolve_sr_conflict): Accept the current number of lookahead
+	bitset to consider for the STATE, instead of the index in LA.
+	(set_conflicts): Adjust.
+	* src/lalr.c, src/lalr.h, src/state.h: Comment changes.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h (state_t): Replace the `lookaheadsp' member, a
+	short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
+	Adjust all dependencies.
+	* src/lalr.c (initialize_lookaheads): Split into...
+	(states_lookaheads_count, states_lookaheads_initialize): these.
+	(lalr): Adjust.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
+	out of...
+	(grammar_rules_print): here.
+	* src/reduce.c (reduce_output): Use it.
+	* tests/reduce.at (Useless Rules, Reduced Automaton)
+	(Underivable Rules): Adjust.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	Copy BYacc's nice way to report the grammar.
+
+	* src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
+	New.
+	Don't print the rules' location, it is confusing and useless.
+	(rule_print): Use grammar_rhs_print.
+	* src/print.c (print_grammar): Use grammar_rules_print.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	Complete and rationalize `useless thing' warnings.
+
+	* src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
+	(symbol_tag_print): New.
+	Use them everywhere in place of accessing directly the tag member.
+	* src/gram.h, src/gram.c (rule_print): New.
+	Use it where a rule used to be printed `by hand'.
+	* src/reduce.c (nonterminals_reduce): Report the use nonterminals.
+	(reduce_grammar_tables): Report the useless rules.
+	(reduce_print): Useless things are a warning, not an error.
+	Report it as such.
+	* tests/reduce.at (Useless Nonterminals, Useless Rules):
+	(Reduced Automaton, Underivable Rules): Adjust.
+	* tests/regression.at (Web2c Report, Web2c Report): Adjust.
+	* tests/conflicts.at (Unresolved SR Conflicts)
+	(Solved SR Conflicts): Adjust.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	Let symbols have a location.
+
+	* src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
+	(getsym): Adjust.
+	Adjust all callers.
+	* src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
+	Use location_t, not int.
+	* src/symtab.c (symbol_check_defined): Take advantage of the
+	location.
+	* tests/regression.at (Invalid inputs): Adjust.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
+	(input): Don't try to initialize yylloc here, do it in the
+	scanner.
+	* src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
+	* src/gram.h (rule_t): Change line and action_line into location
+	and action_location, of location_t type.
+	Adjust all dependencies.
+	* src/location.h, src/location.c (empty_location): New.
+	* src/reader.h, src/reader.c (grammar_start_symbol_set)
+	(grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
+	(grammar_current_rule_symbol_append)
+	(grammar_current_rule_action_append): Expect a location as argument.
+	* src/reader.c (grammar_midrule_action): Adjust to attach an
+	action's location as dummy symbol location.
+	* src/symtab.h, src/symtab.c (startsymbol_location): New.
+	* tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
+	the line numbers.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+	Grammar declarations may be found in the grammar section.
+
+	* src/parse-gram.y (rules_or_grammar_declaration): New.
+	(declarations): Each declaration may end with a semicolon, not
+	just...
+	(grammar_declaration): `"%union"'.
+	(grammar): Branch to rules_or_grammar_declaration.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+	* src/main.c (main): Invoke scanner_free.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (m4_invoke): Extracted from...
+	(output_skeleton): here.
+	Free tempfile.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-gram.y (directives, directive, gram)
+	(grammar_directives, precedence_directives, precedence_directive):
+	Rename as...
+	(declarations, declaration, grammar, grammar_declaration)
+	(precedence_declaration, precedence_declarator): these.
+	(symbol_declaration): New.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+	* src/files.c (action_obstack): Remove, unused.
+	(output_obstack): Remove it, and all its dependencies, as it is no
+	longer needed.
+	* src/reader.c (epilogue_set): Build the epilogue in the
+	muscle_obstack.
+	* src/output.h, src/output.c (muscle_obstack): Move to...
+	* src/muscle_tab.h, src/muscle_tab.h: here.
+	(muscle_init): Initialize muscle_obstack.
+	(muscle_free): New.
+	* src/main.c (main): Call it.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+	* src/location.h: New, extracted from...
+	* src/reader.h: here.
+	* src/Makefile.am (noinst_HEADERS): Merge into
+	(bison_SOURCES): this.
+	Add location.h.
+	* src/parse-gram.y: Use location_t instead of Bison's.
+	* src/reader.h, src/reader.c (prologue_augment, epilogue_set):
+	Use location_t instead of ints.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple, data/bison.c++: Be sure to restore the
+	current #line when returning to the skeleton contents after having
+	exposed the input file's #line.
+
+2002-06-12  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
+	eager.
+	* tests/actions.at (Exotic Dollars): New.
+
+2002-06-12  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
+	['"/] too eagerly.
+	* tests/input.at (Torturing the Scanner): New.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
+	[SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
+	[SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
+	* src/reader.h, src/scan-gram.l (scanner_initialize): this.
+	* src/reader.c (reader): Use it.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
+	Adjust all callers.
+	(scanner_last_string_free): New.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
+	(YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
+	(last_string, YY_OBS_FREE): New.
+	Use them when returning an ID.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	Have Bison grammars parsed by a Bison grammar.
+
+	* src/reader.c, src/reader.h (prologue_augment): New.
+	* src/reader.c (copy_definition): Remove.
+
+	* src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
+	(grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
+	(grammar_current_rule_prec_set, grammar_current_rule_check)
+	(grammar_current_rule_symbol_append)
+	(grammar_current_rule_action_append): Export.
+	* src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
+	(symbol_list_action_append): Remove.
+	Hook the routines from reader.
+	* src/scan-gram.l: In INITIAL, characters and strings are tokens.
+	* src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
+
+	* src/reader.c (read_declarations): Remove, unused.
+
+	* src/parse-gram.y: Handle the epilogue.
+	* src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
+	(grammar_start_symbol_set): this.
+	* src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
+	* src/reader.c (readgram): Remove, unused.
+	(reader): Adjust to insert eoftoken and axiom where appropriate.
+
+	* src/reader.c (copy_dollar): Replace with...
+	* src/scan-gram.h (handle_dollar): this.
+	* src/parse-gram.y: Remove `%thong'.
+
+	* src/reader.c (copy_at): Replace with...
+	* src/scan-gram.h (handle_at): this.
+
+	* src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
+	New.
+
+	* src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
+	time being.
+
+	* src/reader.h, src/reader.c (grammar_rule_end): New.
+
+	* src/parse.y (current_type, current_class): New.
+	Implement `%nterm', `%token' support.
+	Merge `%term' into `%token'.
+	(string_as_id): New.
+	* src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
+	type name.
+
+	* src/parse-gram.y: Be sure to handle properly the beginning of
+	rules.
+
+	* src/parse-gram.y: Handle %type.
+	* src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
+
+	* src/parse-gram.y: More directives support.
+	* src/options.c: No longer handle source directives.
+
+	* src/parse-gram.y: Fix %output.
+
+	* src/parse-gram.y: Handle %union.
+	Use the prologue locations.
+	* src/reader.c (parse_union_decl): Remove.
+
+	* src/reader.h, src/reader.c (epilogue_set): New.
+	* src/parse-gram.y: Use it.
+
+	* data/bison.simple, data/bison.c++: b4_stype is now either not
+	defined, then default to int, or to the contents of %union,
+	without `union' itself.
+	Adjust.
+	* src/muscle_tab.c (muscle_init): Don't predefine `stype'.
+
+	* src/output.c (actions_output): Don't output braces, as they are
+	already handled by the scanner.
+
+	* src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
+	characters to themselves.
+
+	* tests/reduce.at (Reduced Automaton): End the grammars with %% so
+	that the epilogue has a proper #line.
+
+	* src/parse-gram.y: Handle precedence/associativity.
+
+	* src/symtab.c (symbol_precedence_set): Requires the symbol to be
+	a terminal.
+	* src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
+	* tests/calc.at: Do not use `%token "foo"' as it makes not sense
+	at all to define terminals that cannot be emitted.
+
+	* src/scan-gram.l: Escape M4 characters.
+
+	* src/scan-gram.l: Working properly with escapes in user
+	strings/characters.
+
+	* tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
+	(AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
+	grammar.
+	Use more modest sizes, as for the time being the parser does not
+	release memory, and therefore the process swallows a huge amount
+	of memory.
+
+	* tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
+	stricter %token grammar.
+
+	* src/symtab.h (associativity): Add `undef_assoc'.
+	(symbol_precedence_set): Do nothing when passed an undef_assoc.
+	* src/symtab.c (symbol_check_alias_consistence): Adjust.
+
+	* tests/regression.at (Invalid %directive): Remove, as it is now
+	meaningless.
+	(Invalid inputs): Adjust to the new error messages.
+	(Token definitions): The new grammar doesn't allow too many
+	eccentricities.
+
+	* src/lex.h, src/lex.c: Remove.
+	* src/reader.c (lastprec, skip_to_char, read_signed_integer)
+	(copy_character, copy_string2, copy_string, copy_identifier)
+	(copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
+	(parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
+	(parse_action): Remove.
+	* po/POTFILES.in: Adjust.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c 	(parse_action): Don't store directly into the
+	rule's action member: return the action as a string.
+	Don't require `rule_length' as an argument: compute it.
+	(grammar_current_rule_symbol_append)
+	(grammar_current_rule_action_append): New, eved out from
+	(readgram): here.
+	Remove `action_flag', `rulelength', unused now.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (grammar_current_rule_prec_set).
+	(grammar_current_rule_check): New, eved out from...
+	(readgram): here.
+	Remove `xaction', `first_rhs': useless.
+	* tests/input.at (Type clashes): New.
+	* tests/existing.at (GNU Cim Grammar): Adjust.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (grammar_midrule_action): New, Eved out from
+	(readgram): here.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (grammar_rule_begin, previous_rule, current_rule):
+	New.
+	(readgram): Use them as replacement of inlined code, crule and
+	crule1.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (grammar_end, grammar_symbol_append): New.
+	(readgram): Use them.
+	Make the use of `p' as local as possible.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+	GCJ's parser requires the tokens to be defined before the prologue.
+
+	* data/bison.simple: Output the token definition before the user's
+	prologue.
+	* tests/regression.at (Braces parsing, Duplicate string)
+	(Mixing %token styles): Check the output from bison.
+	(Early token definitions): New.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.c (symbol_user_token_number_set): Don't complain when
+	assigning twice the same user number to a token, so that we can
+	use it in...
+	* src/lex.c (lex): here.
+	Also use `symbol_class_set' instead of hand written code.
+	* src/reader.c (parse_assoc_decl): Likewise.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.c, src/symtab.c (symbol_class_set)
+	(symbol_user_token_number_set): New.
+	* src/reader.c (parse_token_decl): Use them.
+	Use a switch instead of ifs.
+	Use a single argument.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+	Remove `%thong' support as it is undocumented, unused, duplicates
+	`%token's job, and creates useless e-mail traffic with people who
+	want to know what it is, why it is undocumented, unused, and
+	duplicates `%token's job.
+
+	* src/reader.c (parse_thong_decl): Remove.
+	* src/options.c (option_table): Remove "thong".
+	* src/lex.h (tok_thong): Remove.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.c, src/symtab.c (symbol_type_set)
+	(symbol_precedence_set): New.
+	* src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
+	(value_components_used): Remove, unused.
+
+2002-06-09  Akim Demaille  <akim@epita.fr>
+
+	Move symbols handling code out of the reader.
+
+	* src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
+	(axiom): Move to...
+	* src/symtab.h, src/symtab.c: here.
+
+	* src/gram.c (start_symbol): Remove: use startsymbol->number.
+	* src/reader.c (startval): Rename as...
+	* src/symtab.h, src/symtab.c (startsymbol): this.
+	* src/reader.c: Adjust.
+
+	* src/reader.c (symbol_check_defined, symbol_make_alias)
+	(symbol_check_alias_consistence, symbol_pack, symbol_translation)
+	(token_translations_init)
+	Move to...
+	* src/symtab.c: here.
+	* src/reader.c (packsymbols): Move to...
+	* src/symtab.h, src/symtab.c (symbols_pack): here.
+	* src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
+	argument.
+
+2002-06-03  Akim Demaille  <akim@epita.fr>
+
+	* src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
+	then statements.
+
+2002-06-03  Akim Demaille  <akim@epita.fr>
+
+	* src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
+	structs with non literals.
+	* src/scan-skel.l: never-interactive.
+	* src/conflicts.c (enum conflict_resolution_e): No trailing
+	comma.
+	* src/getargs.c (usage): Split long literal strings.
+	Reported by Hans Aberg.
+
+2002-05-28  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.c++: Use C++ ostreams.
+	(cdebug_): New member.
+
+2002-05-28  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (output_skeleton): Be sure to allocate enough room
+	for `/' _and_ for `\0' in full_skeleton.
+
+2002-05-28  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.c++: Catch up with bison.simple:
+	2002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+	and Paul Eggert  <eggert@twinsun.com>: `error' handing.
+	2002-05-26  Akim Demaille  <akim@epita.fr>: stos_, token_number_,
+	and popping traces.
+
+2002-05-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* src/output.c (output_skeleton): Put an explicit path in front of
+	the skeleton file name, rather than relying on the -I directory,
+	to partially alleviate effects of having a skeleton file lying around
+	in the current directory.
+
+2002-05-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* src/conflicts.c (log_resolution): Correct typo:
+	obstack_printf should be obstack_fgrow1.
+
+2002-05-26  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h (state_t): `solved_conflicts' is a new member.
+	* src/LR0.c (new_state): Set it to 0.
+	* src/conflicts.h, src/conflicts.c (print_conflicts)
+	(free_conflicts, solve_conflicts): Rename as...
+	(conflicts_print, conflicts_free, conflicts_solve): these.
+	Adjust callers.
+	* src/conflicts.c (enum conflict_resolution_e)
+	(solved_conflicts_obstack): New, used by...
+	(log_resolution): this.
+	Adjust to attach the conflict resolution to each state.
+	Complete the description with the precedence/associativity
+	information.
+	(resolve_sr_conflict): Adjust.
+	* src/print.c (print_state): Output its solved_conflicts.
+	* tests/conflicts.at (Unresolved SR Conflicts)
+	(Solved SR Conflicts): Exercise --report=all.
+
+2002-05-26  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
+	* src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
+	* src/reader.c, src/reduce.c, src/state.h, src/symtab.h
+	(token_number_t, item_number_as_token_number)
+	(token_number_as_item_number, muscle_insert_token_number_table):
+	Rename as...
+	(symbol_number_t, item_number_as_symbol_number)
+	(symbol_number_as_item_number, muscle_insert_symbol_number_table):
+	these, since it is more appropriate.
+
+2002-05-26  Akim Demaille  <akim@epita.fr>
+
+	* tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
+	`Error:' lines.
+	* data/bison.simple (yystos) [YYDEBUG]: New.
+	(yyparse) [YYDEBUG]: Display the symbols which are popped during
+	error recovery.
+	* tests/regression.at (Web2c Actions): Adjust: yystos is output now.
+
+2002-05-25  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo (Debugging): Split into...
+	(Tracing): this new section, its former contents, and...
+	(Understanding): this new section.
+	* src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
+	by...
+	(report_flag): this.
+	Adjust all dependencies.
+	(report_args, report_types, report_argmatch): New.
+	(usage, getargs): Report/support -r, --report.
+	* src/options.h
+	(struct option_table_struct): Rename as..,
+	(struct option_table_s): this.
+	Rename the `set_flag' member to `flag' to match with getopt_long's
+	struct.
+	* src/options.c (option_table): Split verbose into an entry for
+	%verbose, and another for --verbose.
+	Support --report/-r, so remove -r from the obsolete --raw.
+	* src/print.c: Attach full item sets and lookaheads reports to
+	report_flag instead of trace_flag.
+	* lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
+
+2002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+	and Paul Eggert  <eggert@twinsun.com>
+
+	* data/bison.simple (yyparse): Correct error handling to conform to
+	POSIX and yacc.  Specifically, after syntax error is discovered,
+	do not reduce further before shifting the error token.
+	Clean up the code a bit by removing the labels yyerrdefault,
+	yyerrhandle, yyerrpop.
+	* NEWS: Document the above.
+
+2002-05-20  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/bison.simple (yyr1): Don't use yy_token_number_type as element
+	type; it isn't always big enough, since it doesn't necessarily
+	include non-terminals.
+	(yytranslate): Expand definition of yy_token_number_type, so that
+	the latter can be removed.
+	(yy_token_number_type): Remove, only one use.
+	* data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
+	don't use TokenNumberType as element type.
+
+	* tests/regression.at: Modify expected output to agree with change
+	to yyr1 and yytranslate.
+
+2002-05-13  Florian Krohm  <florian@edamail.fishkill.ibm.com>
+
+	* src/reader.c (parse_action): Use copy_character instead of
+	obstack_1grow.
+
+2002-05-13  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (Token definitions): Prototype yylex and
+	yyerror.
+
+2002-05-12  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* src/scan-skel.l: Correct off-by-one error in handling of __oline__.
+	* data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
+	32-bit arithmetic.
+	* data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
+
+2002-05-07  Akim Demaille  <akim@epita.fr>
+
+	* tests/synclines.at: Be sure to prototype yylex and yyerror to
+	avoid GCC warnings.
+
+2002-05-07  Akim Demaille  <akim@epita.fr>
+
+	Kill GCC warnings.
+
+	* src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
+	over the RHS of each rule.
+	* src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
+	* src/state.h (state_t): Member `nitems' is unsigned short.
+	* src/LR0.c (get_state): Adjust.
+	* src/reader.c (packgram): Likewise.
+	* src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
+	`Type'.
+	(muscle_insert_int_table): Remove, unused.
+	(prepare_rules): Remove `max'.
+
+2002-05-06  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (print_firsts): Display of the symbol tags.
+	(bitmatrix_print): Move to...
+	* lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
+	here.
+	* tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
+
+2002-05-06  Akim Demaille  <akim@epita.fr>
+
+	* src/muscle_tab.c (muscle_m4_output): Must return TRUE for
+	hash_do_for_each.
+
+2002-05-06  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (new_state, get_state): Instead of using the global
+	`kernel_size' and `kernel_base', have two new arguments:
+	`core_size' and `core'.
+	Adjust callers.
+
+2002-05-06  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (packgram): No longer end `ritem' with a 0
+	sentinel: it is not used.
+
+2002-05-05  Akim Demaille  <akim@epita.fr>
+
+	New experimental feature: display the lookaheads in the report and
+	graph.
+
+	* src/print (print_core): When --trace-flag, display the rules
+	lookaheads.
+	* src/print_graph.c (print_core): Likewise.
+	Swap the arguments.
+	Adjust caller.
+
+2002-05-05  Akim Demaille  <akim@epita.fr>
+
+	* tests/torture.at (Many lookaheads): New test.
+
+2002-05-05  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
+	(GENERATE_MUSCLE_INSERT_TABLE): this.
+	(output_int_table, output_unsigned_int_table, output_short_table)
+	(output_token_number_table, output_item_number_table): Replace with...
+	(muscle_insert_int_table, muscle_insert_unsigned_int_table)
+	(muscle_insert_short_table, muscle_insert_token_number_table)
+	(muscle_insert_item_number_table): these.
+	Adjust all callers.
+	(prepare_tokens): Don't free `translations', since...
+	* src/reader.h, src/reader.c (grammar_free): do it.
+	Move to...
+	* src/gram.h, src/gram.c (grammar_free): here.
+	* data/bison.simple, data/bison.c++: b4_token_number_max is now
+	b4_translate_max.
+
+2002-05-05  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (output_unsigned_int_table): New.
+	(prepare_rules): `i' is unsigned.
+	`prhs', `rline', `r2' are unsigned int.
+	Rename muscle `rhs_number_max' as `rhs_max'.
+	Output muscles `prhs_max', `rline_max', and `r2_max'.
+	Free rline and r1.
+	* data/bison.simple, data/bison.c++: Adjust to use these muscles
+	to compute types instead of constant types.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-05-04  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.h (SALIAS, SUNDEF): Rename as...
+	(USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
+	Adjust dependencies.
+	* src/output.c (token_definitions_output): Be sure not to output a
+	`#define 'a'' when fed with `%token 'a' "a"'.
+	* tests/regression.at (Token definitions): New.
+
+2002-05-03  Paul Eggert  <eggert@twinsun.com>
+
+	* data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
+	for K&R C.
+
+2002-05-03  gettextize  <bug-gnu-gettext@gnu.org>
+
+	* Makefile.am (SUBDIRS): Remove intl.
+	(EXTRA_DIST): Add config/config.rpath.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (m4_if): Don't output empty enums.
+	And actually, output valid enum definitions :(.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+	* configure.bat: Remove, completely obsolete.
+	* Makefile.am (EXTRA_DIST): Adjust.
+	Don't distribute config.rpath...
+	* config/Makefile.am (EXTRA_DIST): Do it.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+	* configure.in (GETTEXT_VERSION): New.
+	Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (b4_token_enum): New.
+	(b4_token_defines): Use it to output tokens both as #define and
+	enums.
+	Suggested by Paul Eggert.
+	* src/output.c (token_definitions_output): Don't output spurious
+	white spaces.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+	* data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
+
+2002-05-02  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
+	Update the stack class, give a try to deque as the default container.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (yyparse): Do not implement @$ = @1.
+	(YYLLOC_DEFAULT): Adjust to do it.
+	* doc/bison.texinfo (Location Default Action): Fix.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (parse_braces): Merge into...
+	(parse_action): this.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+	* configure.in (ALL_LINGUAS): Remove.
+	* po/LINGUAS, hr.po: New.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+	Remove the so called hairy (semantic) parsers.
+
+	* src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
+	* src/gram.h, src/gram.c (semantic_parser): Remove.
+	(rule_t): Remove the guard and guard_line members.
+	* src/lex.h (token_t): remove tok_guard.
+	* src/options.c (option_table): Remove %guard and %semantic_parser
+	support.
+	* src/output.c, src/output.h (guards_output): Remove.
+	(prepare): Adjust.
+	(token_definitions_output): Don't output the `T'
+	tokens (???).
+	(output_skeleton): Don't output the guards.
+	* src/files.c, src/files.c (attrsfile): Remove.
+	* src/reader.c (symbol_list): Remove the guard and guard_line
+	members.
+	Adjust dependencies.
+	(parse_guard): Remove.
+	* data/bison.hairy: Remove.
+	* doc/bison.texinfo (Environment Variables): Remove occurrences of
+	BISON_HAIRY.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
+	(parse_guard): Rename the formal argument `stack_offset' as
+	`rule_length', which is more readable.
+	Adjust callers.
+	(copy_at, copy_dollar): Instead of outputting the hard coded
+	values of $$, $n and so forth, output invocation to b4_lhs_value,
+	b4_lhs_location, b4_rhs_value, and b4_rhs_location.
+	Note: this patch partially drops `semantic-parser' support: it
+	always does `rule_length - n', where semantic parsers ought to
+	always use `-n'.
+	* data/bison.simple, data/bison.c++ (b4_lhs_value)
+	(b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+	* configure.in (AC_INIT): Bump to 1.49b.
+	(AM_INIT_AUTOMAKE): Short invocation.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+	Version 1.49a.
+
+2002-05-01  Akim Demaille  <akim@epita.fr>
+
+	* src/skeleton.h: Remove.
+
+2002-05-01  Akim Demaille  <akim@epita.fr>
+
+	* src/skeleton.h: Fix the #endif.
+	Reported by Magnus Fromreide.
+
+2002-04-26  Paul Eggert  <eggert@twinsun.com>
+
+	* data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
+	Define if we define YYSTYPE and YYLTYPE, respectively.
+	(YYCOPY): Fix [] quoting problem in the non-GCC case.
+
+2002-04-25  Robert Anisko  <robert@lrde.epita.fr>
+
+	* src/scan-skel.l: Postprocess quadrigraphs.
+
+	* src/reader.c (copy_character): New function, used to output
+	single characters while replacing `[' and `]' with quadrigraphs, to
+	avoid troubles with M4 quotes.
+	(copy_comment): Output characters with copy_character.
+	(read_additionnal_code): Likewise.
+	(copy_string2): Likewise.
+	(copy_definition): Likewise.
+
+	* tests/calc.at: Exercise M4 quoting.
+
+2002-04-25  Akim Demaille  <akim@epita.fr>
+
+	* tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
+	between `!' and the command.
+	Reported by Paul Eggert.
+
+2002-04-24  Robert Anisko  <robert@lrde.epita.fr>
+
+	* tests/calc.at: Exercise prologue splitting.
+
+	* data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
+	`b4_post_prologue' instead of `b4_prologue'.
+
+	* src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
+	muscles.
+	(output): Free pre_prologue_obstack and post_prologue_obstack.
+	* src/files.h, src/files.c (attrs_obstack): Remove.
+	(pre_prologue_obstack, post_prologue_obstack): New.
+	* src/reader.c (copy_definition): Add a parameter to specify the
+	obstack to fill, instead of using attrs_obstack unconditionally.
+	(read_declarations): Pass pre_prologue_obstack to copy_definition if
+	`%union' has not yet been seen, pass post_prologue_obstack otherwise.
+
+2002-04-23  Paul Eggert  <eggert@twinsun.com>
+
+	* data/bison.simple: Remove unnecessary commentary and white
+	space differences from 1_29-branch.
+	Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
+
+	(union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
+	YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
+	if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
+	constructors or destructors.
+
+	(yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
+
+2002-04-23  Akim Demaille  <akim@epita.fr>
+
+	* tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
+	* tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
+	location with columns.
+	* tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
+	All reported by Paul Eggert.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (dump_grammar): Move to...
+	* src/gram.h, src/gram.c (grammar_dump): here.
+	Be sure to separate long item numbers.
+	Don't read the members of a rule's prec if its nil.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (table_size, table_grow): New.
+	(MAXTABLE): Remove, replace uses with table_size.
+	(pack_vector): Instead of dying when the table is too big, grow it.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (yyr1): Its type is that of a token number.
+	* data/bison.c++ (r1_): Likewise.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (token_translations_init): 256 is now the default
+	value for the error token, i.e., it will be assigned another
+	number if the user assigned 256 to one of her tokens.
+	(reader): Don't force 256 to error.
+	* doc/bison.texinfo (Symbols): Adjust.
+	* tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
+	(AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
+	etc. instead of 10, 20, 30 (which was used to `jump' over error
+	(256) and undefined (2)).
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+	Propagate more token_number_t.
+
+	* src/gram.h (token_number_as_item_number)
+	(item_number_as_token_number): New.
+	* src/output.c (GENERATE_OUTPUT_TABLE): New.
+	Use it to create output_item_number_table and
+	output_token_number_table.
+	* src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
+	* src/lex.c, src/nullable.c, src/output.c, src/print.c,
+	* src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
+	* src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+	* src/output.h, src/output.c (get_lines_number): Remove.
+
+2002-04-19  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo (Actions): Make clear that `|' is not the same
+	as Lex/Flex'.
+	(Debugging): More details about enabling the debugging features.
+	(Table of Symbols): Describe $$, $n, @$, and @n.
+	Suggested by Tim Josling.
+
+2002-04-19  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo: Remove the uses of the obsolete @refill.
+
+2002-04-10  Akim Demaille  <akim@epita.fr>
+
+	* src/system.h: Rely on HAVE_LIMITS_H.
+	Suggested by Paul Eggert.
+
+2002-04-09  Akim Demaille  <akim@epita.fr>
+
+	* tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
+	full stderr, and strip it according to the bison options, instead
+	of composing the error message from different bits.
+	This makes it easier to check for several error messages.
+	Adjust all the invocations.
+	Add an invocation exercising the error token.
+	Add an invocation demonstrating a stupid error message.
+	(_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
+	Adjust the tests.
+	Error message are for stderr, not stdout.
+
+2002-04-09  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h, src/gram.c (error_token_number): Remove, use
+	errtoken->number.
+	* src/reader.c (reader): Don't specify the user token number (2)
+	for $undefined, as it uselessly prevents using it.
+	* src/gram.h (token_number_t): Move to...
+	* src/symtab.h: here.
+	(state_t.number): Is a token_number_t.
+	* src/print.c, src/reader.c: Use undeftoken->number instead of
+	hard coded 2.
+	(Even though this 2 is not the same as above: the number of the
+	undeftoken remains being 2, it is its user token number which
+	might not be 2).
+	* src/output.c (prepare_tokens): Rename the `maxtok' muscle with
+	`user_token_number_max'.
+	Output `undef_token_number'.
+	* data/bison.simple, data/bison.c++: Use them.
+	Be sure to map invalid yylex return values to
+	`undef_token_number'.  This saves us from gratuitous SEGV.
+
+	* tests/conflicts.at (Solved SR Conflicts)
+	(Unresolved SR Conflicts): Adjust.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-08  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
+	Adding #line.
+	Remove the duplicate `typedefs'.
+	(RhsNumberType): Fix the declaration and various other typos.
+	Use __ofile__.
+	* data/bison.simple: Use __ofile__.
+	* src/scan-skel.l: Handle __ofile__.
+
+2002-04-08  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (item_number_t): New, the type of item numbers in
+	RITEM.  Note that it must be able to code symbol numbers as
+	positive number, and the negation of rule numbers as negative
+	numbers.
+	Adjust all dependencies (pretty many).
+	* src/reduce.c (rule): Remove this `short *' pointer: use
+	item_number_t.
+	* src/system.h (MINSHORT, MAXSHORT): Remove.
+	Include `limits.h'.
+	Adjust dependencies to using SHRT_MAX and SHRT_MIN.
+	(shortcpy): Remove.
+	(MAXTABLE): Move to...
+	* src/output.c (MAXTABLE): here.
+	(prepare_rules): Use output_int_table to output rhs.
+	* data/bison.simple, data/bison.c++: Adjust.
+	* tests/torture.at (Big triangle): Move the limit from 254 to
+	500.
+	* tests/regression.at (Web2c Actions): Ajust.
+
+	Trying with bigger grammars shows various phenomena: at 3000 (28Mb
+	of grammar file) bison is killed by my system, at 2000 (12Mb) bison
+	passes, but produces negative #line number, once fixed, GCC is
+	killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
+	C), it passes.
+	* src/state.h (state_h): Code input lines on ints, not shorts.
+
+2002-04-08  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (reduce_grammar): First reduce the nonterminals,
+	and then the grammar.
+
+2002-04-08  Akim Demaille  <akim@epita.fr>
+
+	* src/system.h: No longer using strndup.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
+	* src/output.c (output_table_data): Return the longest number.
+	(prepare_tokens): Output `token_number_max').
+	* data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
+	New.
+	Use them to define yy_token_number_type/TokenNumberType.
+	Use this type for yytranslate.
+	* tests/torture.at (Big triangle): Push the limit from 124 to
+	253.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* tests/torture.at (Big triangle): New.
+	(GNU AWK Grammar, GNU Cim Grammar): Move to...
+	* tests/existing.at: here.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h, src/gram.c (nitems): Remove, it is an alias of
+	nritems.
+	Adjust dependencies.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c: Normalize increments to prefix form.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c, symtab.c: Remove debugging code.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	Rename all the `bucket's as `symbol_t'.
+
+	* src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
+	* src/reader.c, src/reader.h, src/reduce.c, src/state.h,
+	* src/symtab.c, src/symtab.h (bucket): Rename as...
+	(symbol_t): this.
+	(symbol_list_new, bucket_check_defined, bucket_make_alias)
+	(bucket_check_alias_consistence, bucket_pack, bucket_translation)
+	(bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
+	(buckets_new, buckets_free, buckets_do): Rename as...
+	(symbol_list_new, symbol_check_defined, symbol_make_alias)
+	(symbol_check_alias_consistence, symbol_pack, symbol_translation)
+	(symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
+	(symbols_new, symbols_free, symbols_do): these.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	Use lib/hash for the symbol table.
+
+	* src/gram.c (ntokens): Initialize to 1, to reserve a slot for
+	EOF.
+	* src/lex.c (lex): Set the `number' member of new terminals.
+	* src/reader.c (bucket_check_defined, bucket_make_alias)
+	(bucket_check_alias_consistence, bucket_translation): New.
+	(reader, grammar_free, readgram, token_translations_init)
+	(packsymbols): Adjust.
+	(reader): Number the predefined tokens.
+	* src/reduce.c (inaccessable_symbols): Just use hard coded numbers
+	for predefined tokens.
+	* src/symtab.h (bucket): Remove all the hash table related
+	members.
+	* src/symtab.c (symtab): Replace by...
+	(bucket_table): this.
+	(bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
+	(buckets_new, buckets_do): New.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
+	(start_symbol, max_user_token_number, semantic_parser)
+	(error_token_number): Initialize.
+	* src/reader.c (grammar, start_flag, startval, typed, lastprec):
+	Initialize.
+	(reader): Don't.
+	(errtoken, eoftoken, undeftoken, axiom): Extern.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (rule_s): prec and precsym are now pointers
+	to the bucket giving the priority/associativity.
+	Member `associativity' removed: useless.
+	* src/reduce.c, src/conflicts.c: Adjust.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
+	Properly escape the symbols' TAG when outputting them.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.h (LA): Is a bitsetv, not bitset*.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.h, src/lalr.c (LAruleno): Replace with...
+	(LArule): this, which is an array to rule_t*.
+	* src/print.c, src/conflicts.c: Adjust.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (rule_t): Rename `number' as `user_number'.
+	`number' is a new member.
+	Adjust dependencies.
+	* src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	As a result of the previous patch, it is no longer needed
+	to reorder ritem itself.
+
+	* src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	Be sure never to walk through RITEMS, but use only data related to
+	the rules themselves. RITEMS should be banished.
+
+	* src/output.c (output_token_translations): Rename as...
+	(prepare_tokens): this.
+	In addition to `translate', prepare the muscles `tname' and
+	`toknum', which were handled by...
+	(output_rule_data): this.
+	Remove, and move the remainder of its outputs into...
+	(prepare_rules): this new routines, which also merges content from
+	(output_gram): this.
+	(prepare_rules): Be sure never to walk through RITEMS.
+	(output_stos): Rename as...
+	(prepare_stos): this.
+	(output): Always invoke prepare_states, after all, just don't use it
+	in the output if you don't need it.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (new_state): Display `nstates' as the name of the
+	newly created state.
+	Adjust to initialize first_state and last_state if needed.
+	Be sure to distinguish the initial from the final state.
+	(new_states): Create the itemset of the initial state, and use
+	new_state.
+	* src/closure.c (closure): Now that the initial state has its
+	items properly set, there is no need for a special case when
+	creating `ruleset'.
+
+	As a result, now the rule 0, reducing to $axiom, is visible in the
+	outputs.  Adjust the test suite.
+
+	* tests/conflicts.at (Solved SR Conflicts)
+	(Unresolved SR Conflicts): Adjust.
+	* tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
+	* tests/conflicts.at (S/R in initial): New.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
+	the RHS of the rules.
+	* src/output.c (output_gram): Likewise.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
+	bucket.
+	Adjust all dependencies.
+	* src/reduce.c (nonterminals_reduce): Don't forget to renumber the
+	`number' of the buckets too.
+	* src/gram.h: Include `symtab.h'.
+	(associativity): Move to...
+	* src/symtab.h: here.
+	No longer include `gram.h'.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h, src/gram.c (rules_rhs_length): New.
+	(ritem_longest_rhs): Use it.
+	* src/gram.h (rule_t): `number' is a new member.
+	* src/reader.c (packgram): Set it.
+	* src/reduce.c (reduce_grammar_tables): Move the useless rules at
+	the end of `rules', and count them out of `nrules'.
+	(reduce_output, dump_grammar): Adjust.
+	* src/print.c (print_grammar): It is no longer needed to check for
+	the usefulness of a rule, as useless rules are beyond `nrules + 1'.
+	* tests/reduce.at (Reduced Automaton): New test.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
+	lacking `+ 1' to nrules, Bison reported as useless a token if it
+	was used solely to set the precedence of the last rule...
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.c++, data/bison.simple: Don't output the current file
+	name in #line, to avoid useless diffs between two identical
+	outputs under different names.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c, src/print.c, src/reader.c, src/reduce.c:
+	Normalize loops to using `< nrules + 1', not `<= nrules'.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* TODO: Update.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
+	bucket.value as bucket.number.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
+	* src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
+	* src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
+	RHS, instead of being an index in RITEMS.
+
+2002-04-04  Paul Eggert  <eggert@twinsun.com>
+
+	* doc/bison.texinfo: Update copyright date.
+	(Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
+	(Symbols): Warn about running Bison in one character set,
+	but compiling and/or running in an incompatible one.
+	Warn about character code 256, too.
+
+2002-04-03  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.data (YYSTACK_ALLOC): Depend on whether
+	YYERROR_VERBOSE is nonzero, not whether it is defined.
+
+	Merge changes from bison-1_29-branch.
+
+2002-03-20  Paul Eggert  <eggert@twinsun.com>
+
+	Merge fixes from Debian bison_1.34-1.diff.
+
+	* configure.in (AC_PREREQ): 2.53.
+
+2002-03-20  Akim Demaille  <akim@epita.fr>
+
+	* src/conflicts.c (log_resolution): Argument `resolution' is const.
+
+2002-03-19  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.simple (YYCOPY): New macro.
+	(YYSTACK_RELOCATE): Use it.
+	Remove Type arg; no longer needed.  All callers changed.
+	(yymemcpy): Remove; no longer needed.
+
+	* Makefile.am (AUTOMAKE_OPTIONS): 1.6.
+	* doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+
+2002-03-19  Akim Demaille  <akim@epita.fr>
+
+	Test and fix the #line outputs.
+
+	* tests/atlocal.at (GCC): New.
+	* tests/synclines.at (AT_TEST_SYNCLINE): New macro.
+	(Prologue synch line, ,%union synch line, Postprologue synch line)
+	(Action synch line, Epilogue synch line): New tests.
+	* src/reader.c (parse_union_decl): Define the muscle stype_line.
+	* data/bison.simple, data/bison.c++: Use it.
+
+2002-03-19  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
+	(Solved SR Conflicts, %expect not enough, %expect right)
+	(%expect too much): Move to...
+	* tests/conflicts.at: this new file.
+
+2002-03-19  Akim Demaille  <akim@epita.fr>
+
+	* data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
+	* data/bison.simple, data/bison.c++: Handle the `#define' part, so
+	that we can move to enums for instance.
+	* src/output.c (token_definitions_output): Output a list of
+	`token-name, token-number' instead of the #define.
+	(output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
+
+2002-03-14  Akim Demaille  <akim@epita.fr>
+
+	Use Gettext 0.11.1.
+
+2002-03-09  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Make the user able to add members to the generated
+	parser by subclassing.
+
+2002-03-05  Robert Anisko  <robert@lrde.epita.fr>
+
+	* src/reader.c (read_additionnal_code): `c' should be an integer, not
+	a character.
+	Reported by Nicolas Tisserand and Nicolas Burrus.
+
+2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
+
+	* src/reader.c: Warn about lacking semi-colons, do not complain.
+
+2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Remove a debug line.
+
+2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Unmerge value as yylval and value as yyval.  Unmerge
+	location as yylloc and location as yyloc.  Use YYLLOC_DEFAULT, and
+	provide a default implementation.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
+	* tests/output.at (AT_CHECK_OUTPUT): Likewise.
+	* tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
+	* tests/semantic.at (Parsing Guards): Similarly.
+	* src/reader.at (readgram): Complain if the last rule is not ended
+	with a semi-colon.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
+	* src/closure.c: here.
+	(set_firsts): Use bitsetv_reflexive_transitive_closure instead of
+	RTC.
+	* src/warshall.h, src/warshall.c: Remove.
+	* tests/sets.at (Broken Closure): Adjust.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (output_skeleton): tempdir is const.
+	bytes_read is unused.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
+	* lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
+	Update.
+	From Michael Hayes.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (closure): `r' is unused.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* tests/sets.at (Broken Closure): Add the ending `;'.
+	* src/reader.at (readgram): Complain if a rule is not ended with a
+	semi-colon.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
+	(count_sr_conflicts): Use bitset_count.
+	* src/reduce.c (inaccessable_symbols): Ditto.
+	(bits_size): Remove.
+	* src/warshall.h, src/warshall.c: Convert to bitsetv.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
+	* src/reduce.c: Remove the `bitset_zero's following the
+	`bitset_create's, as now it is performed by the latter.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
+	* lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
+	* lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
+	latest sources from Michael.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (output): Don't free the grammar.
+	* src/reader.c (grammar_free): New.
+	* src/main.c (main): Call it and don't free symtab here.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
+	before returning.
+	Reported by Benoit Perrot.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	Use bitset operations when possible, not loops over bits.
+
+	* src/conflicts.c (set_conflicts, count_sr_conflicts): Use
+	bitset_or.
+	* src/print.c (print_reductions): Use bitset_and, bitset_andn.
+	* src/reduce.c (useless_nonterminals): Formatting changes.
+	* src/warshall.c (TC): Use bitset_or.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
+	* src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
+	Ditto.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (F): Now a bitset*.
+	Adjust all dependencies.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/conflicts.c (shiftset, lookaheadset): Now bitset.
+	Adjust all dependencies.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/L0.c, src/LR0.h (nstates): Be size_t.
+	Adjust comparisons (signed vs unsigned).
+	* src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
+	bitset*.
+	Adjust all dependencies.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (firsts): Now, also a bitset.
+	Adjust all dependencies.
+	(varsetsize): Remove, now unused.
+	* src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/print.c: Convert to use bitset.h, not hand coded iterations
+	over ints.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c: Convert to use bitset.h, not hand coded BSet.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (ruleset): Be a bitset.
+	(rulesetsize): Remove.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
+	* lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
+	* lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
+	* src/closure.c (fderives): Be an array of bitsets.
+
+2002-02-28  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Merge the two generated headers.  Insert a copyright
+	notice in each output file.
+
+2002-02-28  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.c++: Copy the prologue of bison.simple to fetch
+	useful M4 definitions, such as b4_header_guard.
+
+2002-02-25  Akim Demaille  <akim@epita.fr>
+
+	* src/getargs.c (version): Give the name of the authors, and use a
+	translator friendly scheme for the bgr
+	copyright notice.
+
+2002-02-25  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (header_output): Remove, now handled completely via
+	M4.
+
+2002-02-25  Akim Demaille  <akim@epita.fr>
+
+	* m4/m4.m4: New, from CVS Autoconf.
+	* configure.in: Invoke it.
+	* src/output.c (output_skeleton): Use its result instead of the
+	hard coded name.
+
+2002-02-25  Akim Demaille  <akim@epita.fr>
+
+	* lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
+	Fileutils 4.1.5.
+	* configure.in: Invoke UTILS_FUNC_MKSTEMP.
+	* src/output.c (output_skeleton): Use mkstemp to create a real
+	temporary file.
+	Move the filling of `skeleton' and its muscle to...
+	(prepare): here.
+	(output): Move the definition of the prologue muscle to...
+	(prepare): here.
+	* src/system.h (DEFAULT_TMPDIR): New.
+
+2002-02-14  Paul Eggert  <eggert@twinsun.com>
+
+	Remove the support for C++ namespace cleanliness; it was
+	causing more problems than it was curing, since it didn't work
+	properly on some nonstandard C++ compilers.  This can wait
+	for a proper C++ parser.
+
+	* NEWS: Document this.
+	* doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
+	of C++, as it's treated like C now.
+	* src/bison.simple (YYSTD): Remove.
+	(YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
+	Treat C++ just like Standard C instead of trying to support
+	namespace cleanliness.
+
+2002-02-14  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (else): Adjust to Andreas' change.
+
+2002-02-14  Akim Demaille  <akim@epita.fr>
+
+	* lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
+
+2002-02-13  Andreas Schwab  <schwab@suse.de>
+
+	* src/output.c (output_rule_data): Don't output NULL, it might
+	not be defined yet.
+
+2002-02-11  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
+	(Copyright notice): Update.
+
+2002-02-11  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (%nonassoc and eof): Don't include
+	nonportable headers.
+
+2002-02-08  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Correct error recovery.  Make the user able to
+	initialize the starting location.
+
+2002-02-07  Akim Demaille  <akim@epita.fr>
+
+	* tests/input.at: New.
+
+2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Replace some direct m4 expansions by constants.  Be
+	more consistent when naming methods and variables.  Put preprocessor
+	directives around tables only needed for debugging.
+
+2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
+	C++ parsers.
+	(yy::b4_name::parse): Use print_.
+
+2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++ (yy::b4_name::parse): Error recovery is back.
+
+2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
+	C++ parsers.
+	(yy::b4_name::parse): Build verbose error messages, and use error_.
+
+2002-02-06  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Fix m4 quoting in comments.
+
+2002-02-06  Robert Anisko  <robert@lrde.epita.fr>
+
+	* data/bison.c++: Adjust the parser code.  Fix some muscles that were
+	not expanded by m4.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.c++: Adjust to the M4 back end.
+	More is certainly needed.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+	Give a try to M4 as a back end.
+
+	* lib/readpipe.c: New, from wdiff.
+	* src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
+	BISON_HAIRY.
+	* src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
+	specific values.  Now it is m4 that performs the lookup.
+	* src/parse-skel.y: Remove.
+	* src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
+	* src/output.c (actions_output, guards_output)
+	(token_definitions_output): No longer keeps track of the output
+	line number, hence remove the second argument.
+	(guards_output): Check against the guard member of a rule, not the
+	action member.
+	Adjust callers.
+	(output_skeleton): Don't look for the skeleton location, let m4 do
+	that.
+	Create `/tmp/muscles.m4'.  This is temporary, a proper temporary
+	file will be used.
+	Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
+	(prepare): Given that for the time being changesyntax is not
+	usable in M4, rename the muscles using `-' to `_'.
+	Define `defines_flag', `output_parser_name' and `output_header_name'.
+	* src/output.h (actions_output, guards_output)
+	(token_definitions_output): Adjust prototypes.
+	* src/scan-skel.l: Instead of scanning the skeletons, it now
+	processes the output of m4: `__oline__' and `#output'.
+	* data/bison.simple: Adjust to be used by M4(sugar).
+	* tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
+	to date.
+	* tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
+	instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
+	* data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
+	shamelessly stolen from CVS Autoconf.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+	* lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
+	* configure.in: Check for the declarations of free and malloc.
+	* src/muscle_tab.c: Adjust.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+	* src/muscle_tab.c (muscle_init): Don't default to NULL muscle
+	which have no values.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+	* src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
+	* data/: here.
+
+2002-01-29  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.simple (YYSIZE_T): Do not define merely because
+	YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
+	On some platforms, <alloca.h> does not declare YYSTD (size_t).
+
+2002-01-27  Akim Demaille  <akim@epita.fr>
+
+	Fix `%nonassoc and eof'.
+
+	* src/state.c (errs_dup): Aaaah!  The failure was due to bytes
+	which were not properly copied!  Replace
+	memcpy (res->errs, src->errs, src->nerrs);
+	with
+	memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
+	!!!
+	* tests/regression.at (%nonassoc and eof): Adjust to newest
+	Autotest: `.' is not in the PATH.
+
+2002-01-27  Akim Demaille  <akim@epita.fr>
+
+	* tests/sets.at (AT_EXTRACT_SETS): New.
+	(Nullable): Use it.
+	(Firsts): New.
+
+2002-01-26  Akim Demaille  <akim@epita.fr>
+
+	* tests/actions.at, tests/calc.at, tests/headers.at,
+	* tests/torture.at: Adjust to the newest Autotest which no longer
+	forces `.' in the PATH.
+
+2002-01-25  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (%nonassoc and eof): New.
+	Suggested by Robert Anisko.
+
+2002-01-24  Akim Demaille  <akim@epita.fr>
+
+	Bison dumps core when trying to complain about broken input files.
+	Reported by Cris van Pelt.
+
+	* src/lex.c (parse_percent_token): Be sure to set token_buffer.
+	* tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
+	into...
+	(Invalid inputs): Strengthen: exercise parse_percent_token.
+
+2002-01-24  Robert Anisko  <robert.anisko@epita.fr>
+
+	* src/Makefile.am: Add bison.c++.
+	* src/bison.c++: New skeleton.
+
+2002-01-21  Paolo Bonzini <bonzini@gnu.org>
+
+	* po/it.po: New.
+
+2002-01-21  Kees Zeelenberg  <kzlg@users.sourceforge.net>
+
+	* src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
+
+2002-01-20  Marc Autret  <marc@gnu.org>
+
+	* src/files.c (compute_output_file_names): Fix
+
+2002-01-20  Marc Autret  <marc@gnu.org>
+
+	* tests/output.at: New test.
+	* src/files.c (compute_base_names): Don't map extensions when
+	the YACC flag is set, use defaults.
+	Reported by Evgeny Stambulchik.
+
+2002-01-20  Marc Autret  <marc@gnu.org>
+
+	* src/system.h: Need to	define __attribute__ away for non-GCC
+	compilers as well (i.e.	the vendor C compiler).
+	Suggested by Albert Chin-A-Young.
+
+2002-01-11  Tim Van Holder  <tim.van.holder@pandora.be>
+
+	* lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
+	canonical definition.
+	* src/system.h: Use the canonical definition for PARAMS (avoids
+	a conflict with the macro from lib/hash.h).
+
+2002-01-11  Akim Demaille  <akim@epita.fr>
+
+	* configure.in: Use AC_FUNC_STRNLEN.
+	Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
+
+2002-01-09  Akim Demaille  <akim@epita.fr>
+
+	* src/files.c, src/files.h (output_infix): New.
+	(tab_extension): Remove.
+	(compute_base_names): Compute the former, drop the latter.
+	* src/output.c (prepare): Insert the muscles `output-infix', and
+	`output-suffix'.
+	* src/parse-skel.y (string, string.1): New.
+	(section.header): Use it.
+	(section.yacc): Remove.
+	(prefix): Remove too.
+	* src/scan-skel.l: Adjust.
+	* src/bison.simple, src/bison.hairy: Adjust.
+
+2002-01-09  Akim Demaille  <akim@epita.fr>
+
+	* configure.in (WERROR_CFLAGS): Compute it.
+	* src/Makefile.am (CFLAGS): Pass it.
+	* tests/atlocal.in (CFLAGS): Idem.
+	* src/files.c: Fix a few warnings.
+	(get_extension_index): Remove, unused.
+
+2002-01-08  Akim Demaille  <akim@epita.fr>
+
+	* src/getargs.c (AS_FILE_NAME): New.
+	(getargs): Use it to convert DOSish file names.
+	* src/files.c (base_name): Rename as full_base_name to avoid
+	clashes with `base_name ()'.
+	(filename_split): New.
+	(compute_base_names): N-th rewrite, using filename_split.
+
+2002-01-08  Akim Demaille  <akim@epita.fr>
+
+	* lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
+	New, stolen from the Fileutils 4.1.
+	* lib/Makefile.am (libbison_a_SOURCES): Adjust.
+	* configure.in: Check for the presence of memrchr, and of its
+	prototype.
+
+2002-01-07  Tim Van Holder  <tim.van.holder@pandora.be>
+
+	* lib/hash.h (__P): Added definition for this macro.
+	* src/Makefile.am: Add parse-skel.c and scan-skel.c to
+	BUILT_SOURCES, to ensure they are generated first.
+	* src/parse-skel.y: Use YYERROR_VERBOSE instead of
+	%error-verbose to allow bootstrapping with bison 1.30x.
+
+2002-01-06  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (parse_braces): Don't fetch the next char, the
+	convention is to fetch on entry.
+	* tests/torture.at (GNU Cim Grammar): Reintroduce their weird
+	'switch' without a following semicolon.
+	* tests/regression.at (braces parsing): New.
+
+2002-01-06  Akim Demaille  <akim@epita.fr>
+
+	Bison is dead wrong in its RR conflict reports.
+
+	* tests/torture.at (GNU Cim Grammar): New.
+	* src/conflicts.c (count_rr_conflicts): Fix.
+
+2002-01-06  Akim Demaille  <akim@epita.fr>
+
+	Creating package.m4 from configure.ac causes too many problems.
+
+	* tests/Makefile.am (package.m4): Create it by hand,
+	AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
+
+2002-01-06  Akim Demaille  <akim@epita.fr>
+
+	* src/Makefile.am (bison_SOURCES): Add parse-skel.h and
+	skeleton.h.
+
+2002-01-04  Paul Eggert  <eggert@twinsun.com>
+
+	* doc/bison.texinfo (Debugging):
+	Remove YYSTDERR; it's no longer defined or used.
+	Also, s/cstdio.h/cstdio/.
+
+2002-01-03  Akim Demaille  <akim@epita.fr>
+
+	* tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
+
+2002-01-03  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-skel.y (process_skeleton): Don't bind the parser's
+	tracing code to --trace, wait for a better --trace option, with
+	args.
+
+2002-01-03  Akim Demaille  <akim@epita.fr>
+
+	* src/bison.simple (YYSTDERR): Remove, replace `stderr'.
+	The ISO C++ standard is extremely clear about it: stderr is
+	considered a macro, not a regular symbol (see table 94 `Header
+	<cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
+	Therefore std:: does not apply to it.  It still does with fprintf.
+	Also, s/cstdio.h/cstdio/.
+
+2002-01-03  Akim Demaille  <akim@epita.fr>
+
+	* lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
+	for non system headers.
+
+2002-01-02  Akim Demaille  <akim@epita.fr>
+
+	Equip the skeleton chain with location tracking, runtime trace,
+	pure parser and scanner.
+
+	* src/parse-skel.y: Request a pure parser, locations, and prefix
+	renaming.
+	(%union): Having several members with the same type does not help
+	type mismatches, simplify.
+	(YYPRINT, yyprint): New.
+	(yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
+	(skel_error): this.
+	Handle locations.
+	* src/scan-skel.l: Adjust to these changes.
+	* src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
+	(LOCATION_PRINT, skel_control_t): New.
+
+2001-12-30  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-skel.y: Get rid of the shift/reduce conflict:
+	replace `gb' with BLANKS.
+	* src/scan-skel.l: Adjust.
+
+2001-12-30  Akim Demaille  <akim@epita.fr>
+
+	* src/system.h: We don't need nor want bcopy.
+	Throw away MS-DOS crap: we don't need getpid.
+	* configure.in: We don't need strndup.  It was even causing
+	problems: because Flex includes the headers *before* us,
+	_GNU_SOURCE is not defined by config.h, and therefore strndup was
+	not visible.
+	* lib/xstrndup.c: New.
+	* src/scan-skel.l: Use it.
+	Be sure to initialize yylval.muscle member when scanning a MUSCLE.
+	* src/parse-skel.y: Use %directives instead of #defines.
+
+2001-12-30  Akim Demaille  <akim@epita.fr>
+
+	* src/skeleton.h: New.
+	* src/output.c (output_parser, output_master_parser): Remove, dead
+	code.
+	* src/output.h (get_lines_number, actions_output, guards_output)
+	(token_definitions_output): Prototype them.
+	* src/parse-skel.y: Add the license notice.
+	Include output.h and skeleton.h.
+	(process_skeleton): Returns void, and takes a single parameter.
+	* src/scan-skel.l: Add the license notice.
+	Include skeleton.h.
+	Don't use %option yylineno: it seems that then Flex imagines
+	REJECT has been used, and therefore it won't reallocate its
+	buffers (which makes no other sense to me than a bug).  It results
+	in warnings for `unused: yy_flex_realloc'.
+
+2001-12-30  Robert Anisko  <robert.anisko@epita.fr>
+
+	* src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
+	(MUSCLE_INSERT_PREFIX): ...to there.
+	* src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
+	(MUSCLE_INSERT_PREFIX): Move from here...
+
+	* src/bison.hairy: Add a section directive.  Put braces around muscle
+	names.  This parser skeleton is still broken, but Bison should not
+	choke on a bad muscle 'syntax'.
+	* src/bison.simple: Add a section directive.  Put braces around muscle
+	names.
+
+	* src/files.h (strsuffix, stringappend): Add declarations.
+	(tab_extension): Add declaration.
+	(short_base_name): Add declaration.
+
+	* src/files.c (strsuffix, stringappend): No longer static.  These
+	functions are used in the skeleton parser.
+	(tab_extension): New.
+	(compute_base_names): Use the computations done in this function
+	to guess if the generated parsers should have '.tab' in their
+	names.
+	(short_base_name): No longer static.
+
+	* src/output.c (output_skeleton): New.
+	(output): Disable call to output_master_parser, and give a try to
+	a new skeleton handling system.
+	(guards_output, actions_output): No longer static.
+	(token_definitions_output, get_lines_number): No longer static.
+
+	* configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
+
+	* src/Makefile.am (bison_SOURCES): Add scan-skel.l and
+	parse-skel.y.
+
+	* src/parse-skel.y: New file.
+	* src/scan-skel.l: New file.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	%name-prefix is broken.
+
+	* src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
+	Adjust all dependencies.
+	* tests/headers.at (export YYLTYPE): Strengthen this test: use
+	%name-prefix.
+
+	Renaming yylval but not yylloc is not consistent.  Now we do.
+
+	* src/bison.simple: Prefix yylloc if used.
+	* doc/bison.texinfo (Decl Summary): Document that.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo: Promote `%long-directive' over
+	`%long_directive'.
+	Remove all references to fixed-output-files, yacc is enough.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
+	user prologue.  These are defaults.
+	* tests/actions.at (Mid-rule actions): Make sure the user can
+	define YYDEBUG and YYERROR_VERBOSE.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (header_output): Don't forget to export YYLTYPE and
+	yylloc.
+	* tests/headers.at (export YYLTYPE): New, make sure it does.
+	* tests/regression.at (%union and --defines, Invalid CPP headers):
+	Move to...
+	* tests/headers.at: here.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (rule_s): Member `assoc' is of type `associativity'.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* tests/actions.at (Mid-rule actions): Output on a single line
+	instead of several.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo: Formatting changes.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Don't store the token defs in a muscle, just be ready to output it
+	on command.  Now possible via `symbols'.  Fixes a memory leak.
+
+	* src/output.c (token_definitions_output): New.
+	(output_parser, header_output): Use it.
+	* src/reader.c (symbols_save): Remove.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/bison.simple: Do not provide a default for YYSTYPE and
+	YYLTYPE before the user's prologue.  Otherwise it's hardly... a
+	default.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Mid-rule actions are simply... ignored!
+
+	* src/reader.c (readgram): Be sure to attach mid-rule actions to
+	the empty-rule associated to the dummy symbol, not to the host
+	rule.
+	* tests/actions.at (Mid-rule actions): New.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Memory leak.
+
+	* src/reader.c (reader): Free grammar.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Memory leak.
+
+	* src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
+	since it allocates it for each state, although only one is needed.
+	(allocate_storage): Do it here.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/options.h, src/options.c (create_long_option_table): Rename
+	as...
+	(long_option_table_new): this, with a clearer prototype.
+	(percent_table): Remove, unused,
+	* src/getargs.c (getargs): Adjust.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
+	* src/print.c, src/print_graph.c, src/state.h: Rename state_table
+	as states.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (build_relations): Rename `states' as `states1'.
+	Sorry, I don't understand exactly what it is, no better name...
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
+	* src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
+	* src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
+	as rules.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
+	ago.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c, src/reader.h (user_toknums): Remove.
+	Adjust all users to use symbols[i]->user_token_number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c, src/gram.h (sprec, sassoc): Remove.
+	Adjust all users to use symbols[i]->prec or ->assoc.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c, src/reader.h (tags): Remove.
+	Adjust all users to use symbols[i]->tag.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h, src/gram.c (symbols): New, similar to state_table
+	and rule_table.
+	* src/reader.c (packsymbols): Fill this table.
+	Drop sprec.
+	* src/conflicts.c (resolve_sr_conflict): Adjust.
+	* src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
+	single table.
+	Use symbols[i]->tag instead of tags[i].
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
+	In addition, put a comment in there, to replace...
+	* tests/regression.at (%union and C comments): Remove.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (Web2c Actions): Blindly move the actual
+	output as expected output.  The contents *seem* right to me, but I
+	can't pretend reading perfectly parser tables...  Nonetheless, all
+	the other tests pass correctly, the table look OK, even though the
+	presence of `$axiom' is to be noted: AFAICS it is useless (but
+	harmless).
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (readgram): Don't add the rule 0 if there were no
+	rules read.  In other words, add it _after_ having performed
+	grammar sanity checks.
+	Fixes the `tests/regression.at (Invalid input: 1)' Failure.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (Web2c Report): Catch up: the rule 0 is now
+	visible, and some states have now a different number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (readgram): Bind the initial rule's lineno to that
+	of the first rule.
+	* tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
+	(Solved SR Conflicts): Adjust rule 0's line number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Fix the `GAWK Grammar' failure.
+
+	* src/LR0.c (final_state): Initialize to -1 so that we do compute
+	the reductions of the first state which was mistakenly confused
+	with the final state because precisely final_state was initialized
+	to 0.
+	* tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
+	now noticed by Bison.
+	* tests/regression.at (Rule Line Numbers): Adjust: state 0 does
+	have a reduction on $default.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c (ritem_print): Be sure to subtract 1 when displaying
+	rule line numbers.
+	* src/closure.c (print_closure): Likewise.
+	* src/derives.c (print_derives): Likewise.
+	* tests/sets.at (Nullable): Adjust: the rule numbers are correct
+	now.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (lookaheads_print): New.
+	(lalr): Call it when --trace-flag.
+	* tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
+	are dumped.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
+	when walking through ritem, even via rule->rhs.
+	* src/reduce.c (dump_grammar, useful_production, reduce_output)
+	(useful_production, useless_nonterminals): Likewise.
+	(reduce_grammar_tables): Likewise, plus update nritems.
+	* src/nullable.c (set_nullable): Likewise.
+	* src/lalr.c (build_relations): Likewise.
+	* tests/sets.at (Nullable): Adjust.
+	Fortunately, now, the $axiom is no longer nullable.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (generate_states): Use nritems, not nitems, nor using
+	the 0-sentinel.
+	* src/gram.c (ritem_longest_rhs): Likewise.
+	* src/reduce.c (nonterminals_reduce): Likewise.
+	* src/print_graph.c (print_graph): Likewise.
+	* src/output.c (output_rule_data): Likewise.
+	* src/nullable.c (set_nullable):  Likewise.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c: Comment changes.
+
+2001-12-27  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
+	cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
+	Sparc, as they were causing more porting problems than the
+	(minor) performance improvement was worth.
+
+	Also, catch up with 1.31's YYSTD.
+
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/output.c (output_gram): Rely on nritems, not the
@@ -4921,3 +8251,23 @@
 1987-12-16  Richard Stallman  <rms@gnu.org>
 
 	* REFERENCES: entered into RCS
+-----
+
+Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Bison.
+
+GNU Bison is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Bison is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Bison; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.