X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/fae437e835febad97544793497ebd1a645a4e78b..8442d6ba228133aba0bc2ada30b8796229884223:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 7d942691..8115b899 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,463 @@
+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.
@@ -353,7 +813,7 @@
 
 	Accumulated changelog for new GLR parsing features.
 
-        * src/conflicts.c (count_total_conflicts): Change name to
+	* 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.