X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/b7195100fd19a03481298c4c27242f8125c1c2a0..e7cb57c0b8ec971a6b0f8419455d2ea9341c8601:/ChangeLog

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@@ -1,3 +1,424 @@
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
+	* data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
+	(yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
+	(yyresolveStates, yyresolveAction, yyresolveStack)
+	(yyprocessOneStack): Use them.
+	(yy_reduce_print): New.
+	* tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_c_ansi_args): Recognize functions with no
+	arguments and output `void'.
+	(b4_c_function): Rename as...
+	(b4_c_function_def): this.
+	(b4_c_function_decl, b4_c_ansi_function_def)
+	(b4_c_ansi_function_decl): New.
+	Change the interpretation of the arguments: before `int, foo', now
+	`int foo, foo'.
+	* data/yacc.c (yyparse): Prototype and define thanks to these.
+	Adjust b4_c_function_def uses.
+	* data/glr.c (yyparse): Likewise, but ANSI only.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (prepare): Move the definition of `tokens_number',
+	`nterms_number', `undef_token_number', `user_token_number_max'
+	to...
+	(prepare_tokens): Here.
+	(prepare_tokens): Rename as...
+	(prepare_symbols): this.
+	(prepare): Move the definition of `rules_number' to...
+	(prepare_rules): here.
+	(prepare): Move the definition of `last', `final_state_number',
+	`states_number' to...
+	(prepare_states): here.
+	* data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* src/tables.h, src/tables.c, src/output.c: Comment changes.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
+	* data/c.m4: here.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (prepare): Use MUSCLE_INSERT_STRING.
+	* src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
+	`pair'.
+	(muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
+	`name' to...
+	* data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
+	(b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
+	These.
+
+2002-10-19  Paul Eggert  <eggert@twinsun.com>
+
+	Do not create a temporary file, as that involves security and
+	cleanup headaches.  Instead, use a pair of pipes.
+	Derived from a suggestion by Florian Krohm.
+	* lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
+	* lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
+	* configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
+	(BISON_PREREQ_SUBPIPE): Add.
+	* lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
+	Add subpipe.h, subpipe.c.
+	* m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4.  Add subpipe.m4.
+	* po/POTFILES.in: Add lib/subpipe.c.
+	* src/output.c: Include "subpipe.h".
+	(m4_invoke): Remove decl.
+	(scan_skel): New decl.
+	(output_skeleton): Use pipe rather than temporary file for m4 input.
+	Check that m4sugar.m4 is readable, to avoid deadlock.
+	Check for pipe I/O error.
+	* src/scan-skel.l (readpipe): Remove decl.
+	(scan_skel): New function, to be used in place of m4_invoke.
+	Read from stream rather than file.
+
+	* lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
+	float, as this generates a warning on Solaris 8 + GCC 3.2 with
+	--enable-gcc-warnings.  Instead, divide into 1.0 rather than 1;
+	this generates a more-accurate value anyway.
+
+	* lib/timevar.c (timervar_accumulate): Rename locals to
+	avoid confusion with similarly-named more-global.
+	* src/muscle_tab.c (muscle_pair_list_grow): Likewise.
+
+	* src/output.c (prepare): Use xstrdup to convert char const *
+	to char *, to avoid GCC warning.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+	* tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
+	LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
+	Use them to have `calc.y' ready for %pure-parser.
+	* data/yacc.c (YYLEX): Pass a yylex return type to
+	b4_c_function_call.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+	Prototype support of %lex-param and %parse-param.
+
+	* src/parse-gram.y: Add the definition of the %lex-param and
+	%parse-param tokens, plus their rules.
+	Drop the `_' version of %glr-parser.
+	Add the "," token.
+	* src/scan-gram.l (INITIAL): Scan them.
+	* src/muscle_tab.c: Comment changes.
+	(muscle_insert, muscle_find): Rename `pair' as `probe'.
+	* src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
+	(muscle_entry_s): The `value' member is no longer const.
+	Adjust all dependencies.
+	* src/muscle_tab.c (muscle_init): Adjust: use
+	MUSCLE_INSERT_STRING.
+	Initialize the obstack earlier.
+	* src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
+	(muscle_pair_list_grow): New.
+	* data/c.m4 (b4_c_function_call, b4_c_args): New.
+	* data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
+	* tests/calc.at: Use %locations, not --locations.
+	(AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+	* src/getargs.c (usage): Take status as argument and exit
+	accordingly.
+	Report the traditional `Try ... --help' message when status != 0.
+	(usage, version): Don't take a FILE * as arg, it is pointless.
+	(getargs): When there is an incorrect number of arguments, make it
+	an error, and report it GNUlically thanks to `usage ()'.
+
+2002-10-18  Paul Eggert  <eggert@twinsun.com>
+
+	* data/glr.c (yyreportParseError): Don't assume that sprintf
+	yields the length of the printed string, as this is not true
+	on SunOS 4.1.4.  Reported by Peter Klein.
+
+	* tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
+	* tests/conflicts.at (%nonassoc and eof): Likewise.
+	Fixes SunOS 4.1.4 test failure reported by Peter Klein.
+
+2002-10-17  Akim Demaille  <akim@epita.fr>
+
+	* src/getargs.h (trace_e): Add trace_scan, and trace_parse.
+	* src/getargs.c (trace_types, trace_args): Adjust.
+	* src/reader.c (grammar_current_rule_prec_set)
+	(grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
+	Standardize error messages.
+	And s/@prec/%prec/!
+	(reader): Use trace_flag to enable scanner/parser debugging,
+	instead of an adhoc scheme.
+	* src/scan-gram.l: Remove trailing debugging code.
+
+2002-10-16  Paul Eggert  <eggert@twinsun.com>
+
+	* src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
+	MUSCLE_TAB_H.
+
+	* NEWS: Officially drop support for building Bison with K&R C,
+	since it didn't work anyway and it's not worth worrying about.
+	* Makefile.maint (wget_files): Remove ansi2knr.c.
+	(ansi2knr.c-url_prefix): Remove.
+	* lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
+	* lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+	* src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+
+2002-10-15  Paul Eggert  <eggert@twinsun.com>
+
+	Stop using the "enum_" trick for K&R-style function definitions;
+	it confused me, and I was the author!  Instead, assume that people
+	who want to use K&R C compilers (when using these modules in GCC,
+	perhaps?) will run ansi2knr.
+
+	* lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
+	All uses of "enum_" changed to "enum ".
+	* lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+	* lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+	* lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
+	abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
+	abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
+	abitset_copy1, abitset_disjoint_p, abitset_empty_p,
+	abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
+	abitset_not, abitset_ones, abitset_or, abitset_or_and,
+	abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
+	abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
+	abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
+	Use function prototypes; this removes the need for declaring
+	static functions simply to provide their prototypes.
+	* lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
+	bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
+	bitset_count_, bitset_create, bitset_dump, bitset_first,
+	bitset_free, bitset_init, bitset_last, bitset_next,
+	bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
+	bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
+	bitset_print, bitset_release_memory, bitset_toggle_,
+	bitset_type_choose, bitset_type_get, bitset_type_name_get,
+	debug_bitset): Likewise.
+	* lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
+	* lib/bitset_stats.c (bitset_log_histogram_print,
+	bitset_percent_histogram_print, bitset_stats_and,
+	bitset_stats_and_cmp, bitset_stats_and_or,
+	bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
+	bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
+	bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
+	bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
+	bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
+	bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
+	bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
+	bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
+	bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
+	bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
+	bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
+	bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
+	bitset_stats_zero): Likewise.
+	* lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+	bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+	bitsetv_dump, debug_bitsetv): Likewise.
+	* lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
+	ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
+	ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
+	ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
+	ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
+	ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
+	ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
+	ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
+	ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
+	ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
+	ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
+	Likewise.
+	* lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
+	lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
+	lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
+	lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
+	lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
+	lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
+	lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
+	lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
+	lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
+	lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
+	lbitset_xor_cmp, lbitset_zero): Likewise.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+	Version 1.75.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+	* tests/Makefile.am (maintainer-check-posix): New.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+	* data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
+	member.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+	* src/tables.c (table_ninf_remap): base -> tab.
+	Reported by Matt Rosing.
+
+2002-10-14  Paul Eggert  <eggert@twinsun.com>
+
+	* tests/action.at, tests/calc.at, tests/conflicts.at,
+	tests/cxx-type.at, tests/headers.at, tests/input.at,
+	tests/regression.at, tests/synclines.at, tests/torture.at:
+	Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
+	so that the tests still work even if POSIXLY_CORRECT is set.
+	* doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
+
+	* data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
+	for portability to K&R hosts.  Fix typo: signed char is guaranteed
+	only to 127, not to 128.
+	* data/glr.c (yysigned_char): New type.
+	* data/yacc.c (yysigned_char): Likewise.
+	* tests/regression.at (Web2c Actions): signed char -> yysigned_char.
+
+2002-10-13  Paul Eggert  <eggert@twinsun.com>
+
+	* data/yacc.c (yyparse): Rewrite to avoid "comparison is always
+	true due to limited range of data type" warning from GCC.
+
+	* data/c.m4 (b4_token_defines): Protect against double-inclusion
+	by wrapping enum yytokentype's definition inside #ifndef
+	YYTOKENTYPE.  This undoes a bug I introduced on 2002-10-12.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
+	Un yy- yyrhs to avoid the name clash with the global YYRHS.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* Makefile.maint: Update from Autoconf 2.54.
+	* m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* src/print.c (print_state): Separate the list of solved conflicts
+	from the other items.
+	* tests/conflicts.at (Resolved SR Conflicts): Adjust.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	Let nondeterministic skeletons be usable with deterministic
+	tables.
+
+	With the patch, GAWK compiled by GCC without -O2 passes its test
+	suite using a GLR parser driven by LALR tables.  It fails with -O2
+	because `struct stat' gives two different answers on my machine:
+	88 (definition of an auto var) and later 96 (memset on this var).
+	Hence the stack is badly corrumpted.  The headers inclusion is to
+	blame: if I move the awk.h inclusion before GLR's system header
+	inclusion, the two struct stat have the same size.
+
+	* src/tables.c (pack_table): Always create conflict_table.
+	(token_actions): Always create conflict_list.
+	* data/glr.c (YYFLAG): Remove, unused.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
+	(O0FLAGS): New.
+	(VALGRIND, GXX): New.
+	* tests/atlocal.in (CFLAGS): Use O0FLAGS.
+	* tests/bison.in: Run $PREBISON a pre-command.
+	* tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
+	(maintainer-check-g++): New.
+	* Makefile.am (maintainer-check): New.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* data/glr.c: Formatting changes.
+	Tweak some trace messages to match yacc.c's.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	GLR parsers sometimes raise parse errors instead of performing the
+	default reduction.
+	Reported by Charles-Henry de Boysson.
+
+	* tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
+	check the length of the	traces when %glr.
+	(_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
+	GLR's traces.
+	(AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
+	Test GLR parsers.
+	* data/glr.c (YYLEFTMOST_STATE): Fix its value.
+	(yyltype): Remove the yy prefix from the member names.
+	(yytable): Complete its comment.
+	(yygetLRActions): Map error action number from YYTABLE from
+	YYTABLE_NINF to 0.
+	(yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
+	(which was a bug: it should have been YYTABEL_NINF, and yet it was
+	not satisfying as we could compare an YYACTION computed from
+	YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
+	only value for error actions.
+	(yyreportParseError): In verbose parse error messages, don't issue
+	`error' in the list of expected tokens.
+	* data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
+	next action to perform to match glr.c's decoding.
+	(yytable): Complete its comment.
+
+2002-10-13  Paul Eggert  <eggert@twinsun.com>
+
+	Fix problem reported by Henrik Grubbstroem in
+	<http://mail.gnu.org/pipermail/bug-bison/2002-October/001670.html>:
+	"nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
+	because the Bison parser reads the second action before reducing
+	the first one.
+	* src/scan-gram.l (rule_length): New static var.
+	Use it to keep track of the rule length in the scanner, since
+	we can't expect the parser to be in lock-step sync with the scanner.
+	(handle_action_dollar, handle_action_at): Use this var.
+	* tests/actions.at (Exotic Dollars): Test for the problem.
+
+2002-10-12  Paul Eggert  <eggert@twinsun.com>
+
+	* lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
+	* m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
+	Include <sys/time.h> when checking for clock_t and struct tms.
+	Use same include order as source.
+	This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
+	<http://mail.gnu.org/pipermail/bug-bison/2002-October/001674.html>.
+
+	* lib/timevar.c: Update copyright date and clarify comments.
+	(get_time) [IN_GCC]: Keep the GCC version for reference.
+
+	* lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
+	GCC version as of today, then merge Bison's changes.
+	Change "GCC" to "Bison" in copyright notice.  timevar.def's
+	author is Akim, so change that too.
+
+	* src/reader.c (grammar_current_rule_check):
+	Don't worry about the default action if $$ is untyped.
+	Prevents bogus warnings reported by Jim Gifford in
+	<http://mail.gnu.org/pipermail/bug-bison/2002-October/001673.html>.
+
+	* data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
+	* data/glr.c, data/lalr1.cc, data/yacc.c:
+	Output token definitions before the first part of user declarations.
+	Fixes compatibility problem reported by Jim Gifford for kbd in
+	<http://mail.gnu.org/pipermail/bug-bison/2002-October/001672.html>.
+
+2002-10-11  Paul Eggert  <eggert@twinsun.com>
+
+	* data/yacc.c (yyreport_parse_error): Remove, putting its body into...
+	(yyparse): here.  This undoes some of the 2002-07-25 change.
+	Compatibility problem reported by Ralf S. Engelschall with
+	OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
+
+2002-10-11  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at Characters Escapes): New.
+	* src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
+	characters.
+	Reported by Jan Nieuwenhuizen.
+
 2002-10-11  Akim Demaille  <akim@epita.fr>
 
 	* po/id.po: New.