2024-09-17         Arnold D. Robbins     <arnold@skeeve.com>

	* 5.3.1: Release tar made.

2024-09-17         Arnold D. Robbins     <arnold@skeeve.com>

	* Makefile.am, awkgram.y, command.y, debug.c, eval.c,
	gawkapi.c, interpret.h, mpfr.c: Update copyright year.
	* Checklist: Updated a bit.
	* NEWS: Version changed.
	* configure.ac: Bump version.

2024-09-04         Arnold D. Robbins     <arnold@skeeve.com>

	* Checklist: Add two more items to do.

2024-08-16         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c (zero_fill_to_precision): Fix calculation of buflen.
	Thanks and a tip of the hatlo to Address Sanitizer.

2024-08-12         Arnold D. Robbins     <arnold@skeeve.com>

	* awkgram.y (push_ns_onto_namespace_chain): New function.
	(mk_function, set_namespace): Use it.

2024-08-12         Arnold D. Robbins     <arnold@skeeve.com>

	Fix some C23 compilation issues. Thanks to
	Jeffrey Cliff <jeffrey.cliff@gmail.com> for the report.

	* awkgram.y (get_src_buf): Remove obsolete comment.
	* io.c (iop_alloc, get_read_timeout): Fix casts for read.

2024-08-11         John E. Malmberg      <wb8tyw@qsl.net>

	* printf.c (format_mpg_integer_digits): Improved fix
	from Arnold for if !HAVE_MPFR.

2024-08-11         John E. Malmberg      <wb8tyw@qsl.net>

	* printf.c (format_float): Fix cant_happen macro call.
	(format_mpg_integer_digits): Return NULL if !HAVE_MPFR.

2024-08-10         Arnold D. Robbins     <arnold@skeeve.com>

	Thanks again to Michal Jaegermann for tips on removing
	compiler warnings:

	* eval.c (cmp_scalars): Default ret to false and add a
	default case to the switch.

2024-08-09         Arnold D. Robbins     <arnold@skeeve.com>

	Thanks to Michal Jaegermann for tips on removing
	compiler warnings:

	* eval.c (opcode2str): Return "" instead of NULL.
	(cmp_doubles): Default ret to false and add a default case
	to the switch.
	* printf.c (format_signed_integer): Add some additional
	parentheses.

2024-08-06         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c (format_unsigned_integer, format_signed_integer):
	Additional fixes. New added tests pass.

2024-07-26         Arnold D. Robbins     <arnold@skeeve.com>

	* re.c (check_bracket_exp): Make the code actually work.

2024-07-23         Arnold D. Robbins     <arnold@skeeve.com>

	Finish cleaning up the printf refactoring. All tests run, both
	regular and -M. Test suite is valgrind clean!

	Summary of changes:
	* printf.c: New file.
	(format_args): Moved here and renamed from format_tree.  Considerably
	simplified by moving code out into new routines.
	(struct flags): New struct.
	(add_thousands, do_printf, do_sprintf, format_nan_inf, mbc_byte_count,
	mbc_char_count, out_of_range, printf_common, reverse): Moved to here.
	(add_alt_format, add_plus_or_space_and_fill, adjust_flags, compute_zero_flag,
	fill_to_field_width, format_float, format_integer_digits,
	format_mpg_integer_digits, format_out_of_range, format_signed_integer,
	format_unsigned_integer, zero_fill_to_precision): New routines.

2024-07-21         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Simplify printing of signed integers; move several
	common tasks out into separate routines, and use char * instead
	of const char * to avoid a lot of casting.

2024-07-20         Tim Rice              <trice@posteo.net>

	* io.c (csvscan): Set the sentinel if we found CR-LF.

2024-07-20         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Continuing fixes and cleanups.

2024-07-17         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.
	* printf.c (fill_to_field_width): New function.
	(format_out_of_range, format_unsigned_integer): Start to use it.

2024-07-16         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Continue cleaning up code and removing now-dead code.

2024-07-16         Arnold D. Robbins     <arnold@skeeve.com>

	* awk.h (format_args): Renamed from format_tree. Remove
	format_tree_old.
	* debug.c, main.c, mpfr.c, node.c: Adjusted.
	* printf.c (format_args): Renamed. Removed all old, factored-out
	code.
	(format_tree_old): Removed.

2024-07-16         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Use mpfr_sprintf() just to generate digits.
	All tests now passing, even with -M.

2024-07-13         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Continued progress against the printf-corners test.

2024-07-11         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Signed and unsigned integer printing and float printing
	working for current tests. MPFR integer printing also for current
	tests. A few tests still to go in printf-corners.

2024-07-09         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Signed printing I think is working. Unsigned is better.
	Checkpoint commit.

2024-07-07         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Signed and unsigned integer printing mostly working now.
	Still to go: Finish that up, get GMP/MPFR integer printing working.

2024-07-05         Arnold D. Robbins     <arnold@skeeve.com>

	* printf.c: Lots of cleanup. Floating point format pretty
	much working. Signed integer printing getting there.
	Unsigned integer printing still to do.

2024-07-02         Arnold D. Robbins     <arnold@skeeve.com>

	* awk.h (format_tree_new, format_tree_old): Add declarations.
	(format_tree): Temporarily make into a function.
	* main.c (format_tree): Declare it.
	(main): Check PRINTF_NEW environment variable and if so,
	use the new version. Otherwise use the old one.
	* printf.c (struct flags): Declare.
	(format_tree_old): The original version.
	(format_tree_new): The new one, being refactored.
	(add_thousands): Use the global `loc' variable, not a parameter.
	static const char *format_integer(NODE *arg, struct flags *flags);
	(format_mpg_integer, format_float, format_out_of_range,
	compute_zero_flag): New functions.

2024-07-02         Arnold D. Robbins     <arnold@skeeve.com>

	* re.c (make_regexp): \u escapes also now treated literally
	for do_traditional.

2024-06-26         Arnold D. Robbins     <arnold@skeeve.com>

	Start on printf rework.

	* printf.c: New file, with stuff for printf in it.
	* builtin.c: Move printf functions into printf.c.
	* awk.h (efwrite): Add declaration.
	* Makefile.am (base_source): Added printf.c.

2024-06-21         Arnold D. Robbins     <arnold@skeeve.com>

	* io.c (csvscan): Add a missing buffer overrun check. Restores
	`AwKBUFSIZE=42 make check' to passing. :-)

2024-06-16         Arnold D. Robbins     <arnold@skeeve.com>

	* interpret.h (r_interpret): Op_push: When converting a
	Node_elem_new into a Node_var, clear the MPFN and MPZN flags.
	Allows the test suite to run again with -M.

2024-06-10         Arnold D. Robbins     <arnold@skeeve.com>

	* main.c (nostalgia): Remved function.
	[COPYRIGHT_YEAR]: Bumped to 2024.
	(main): Removed --nostalgia from options and from handling.
	* NEWS: Updated.

2024-06-08         Arnold D. Robbins     <arnold@skeeve.com>

	* io.c: Remove check for OSF/1.  It's too obsolete now.

2024-06-05         Arnold D. Robbins     <arnold@skeeve.com>

	* io.c: Fix a comment typo for enum recvalues.

2024-06-03         Arnold D. Robbins     <arnold@skeeve.com>

	* awk.h [USE_REAL_MALLOC]: Define this so that emalloc() and friends
	use the real routines. For memory debugging.
	* configure.ac: Enable USE_REAL_MALLOC if 'mallocdebug' is in
	.developing. Add debug to .y files if 'yaccdebug' is in
	.developing. Use '^...$' in grep test for all tests from
	the .developing file.

2024-05-19         Arnold D. Robbins     <arnold@skeeve.com>

	* awkgram.c: Updated.
	* builtin.c (gawk_system): Remove an unused variable.
	* io.c (gawk_popen_write): Ditto.

2024-05-18         Arnold D. Robbins     <arnold@skeeve.com>

	* awkgram.y (check_params): Make the message about not allowing
	reseved variables as parameters explicit that this is from POSIX.

2024-04-28         Arnold D. Robbins     <arnold@skeeve.com>

	* re.c: Update copyright year.

2024-04-20         Arnold D. Robbins     <arnold@skeeve.com>

	* eval.c (cmp_scalars): Call fixtype() on the values before
	trying to compare them. Thanks to Ed Morton for the bug
	report. See test/strsubscript.awk for the test case.

2024-02-29         Arnold D. Robbins     <arnold@skeeve.com>

	* re.c (do_sub): Fix arguments in call to SUBPATSTART().

2024-02-23         Arnold D. Robbins     <arnold@skeeve.com>

	Another attempt to fix the race conditions on SIGPIPE. See
	https://lists.gnu.org/archive/html/bug-gawk/2023-12/msg00011.html.

	* awk.h (do_nothing_on_signal): Remove declaration.
	(wait_any): Add declaration.
	* builtin.c (gawk_system): New function.
	(do_system): Call it.
	* io.c (wait_any): Make extern, not static.
	(gawk_popen_write, gawk_popen_write_close): New functions.
	(redirect_string): Call gawk_popen_write.
	(close_rp): Call gawk_popen_write_close.
	(do_nothing_on_signal): Removed.
	(getdtablesize): Define as a macro if needed.
	* configure.ac: Add check for getdtablesize.

	* awk.h, builtin.c, io.c, node.c, gawkapi.h, configure.ac: Updated
	copyright years also.

2024-02-01         Arnold D. Robbins     <arnold@skeeve.com>

	* .gitignore: Ignore .dirstamp files. Thanks to "M"
	<c24p0101@gmail.com> for the suggestion.

2024-01-28         Arnold D. Robbins     <arnold@skeeve.com>

	* node.c (str2wstr): Always allocate the array for use
	by do_match().  Bug reported by Sam James <sam@gentoo.org>.
	Thanks to Miguel Pineiro Jr. <mpj@pineiro.cc> for the
	simplified test case.

2024-01-20         Arnold D. Robbins     <arnold@skeeve.com>

	* configure.ac: MPFR on 32 bit Power PC is back
	to working. Remove the check that disables it.
	* NEWS: Updated.

2024-01-16         Andrew J. Schorr      <aschorr@telemetry-investments.com>

	* gawkapi.h: Add a comment suggesting that do_flags be converted
	to a bitmask if we ever need to add another value, since the current
	approach breaks ABI compatibility for each new flag.

2024-01-12         Arnold D. Robbins     <arnold@skeeve.com>

	Use newer interfaces for getting the time if they're available.
	Thanks to Andreas Schwab <schwab@suse.de> and Andrew Schorr.

	* builtin.c (do_systime): Use clock_gettime() or gettimeofday() or
	time(), in that order.
	* configure.ac: Add checks for clock_gettime() and gettimeofday().

2023-12-26         Arnold D. Robbins     <arnold@skeeve.com>

	* gawkapi.c (api_get_argument): Sync handling of AWK_UNDEFINED
	with the doc.
	(node_to_awk_value): Similar.

2023-12-25         Arnold D. Robbins     <arnold@skeeve.com>

	* debug.c (serialize_list): Fix a compiler warning about
	an unused variable.

2024-12-25         Andrew J. Schorr      <aschorr@telemetry-investments.com>

	* io.c (get_read_timeout): Make gawk match the doc and have
	GAWK_READ_TIMEOUT work if no entry in PROCINFO. Thanks
	to Ed Morton for the report.

2023-12-24         Arnold D. Robbins     <arnold@skeeve.com>

	* debug.c (print_array): Use the subscript as the
	subarray name instead of the `vname' field. This field
	is not there for arrays created with NUMINT subscripts.
	Thanks again to Hermann Peifer for the report.

	Unrelated:

	* debug.c (find_subscript): Fail early on Node_var_new
	and Node_elem_new.  Thanks yet again to Hermann Peifer
	for the report.

2023-12-21         Arnold D. Robbins     <arnold@skeeve.com>

	Fix multidimensional array printing in the debugger, again.
	Thanks again to Hermann Peifer for the report.

	* debug.c (print_array): Maintain a stack of array names
	and indexes, and print it when printing the value.
	(print_array_names): New function.

2023-12-21         Arnold D. Robbins     <arnold@skeeve.com>

	Try to close a race condition window on SIGPIPE. See the thread at
	https://lists.gnu.org/archive/html/bug-gawk/2023-12/msg00011.html.
	Thanks to Andreas Schwab <schwab@suse.de>.

	* awk.h (ignore_sigpipe, set_sigpipe_to_default): Remove decls,
	they're not functions.
	(do_nothing_on_signal): Add declaration.
	(silent_catch_sigpipe): New macro.
	* builtin.c (do_system): Replace call of set_sigpipe_to_default()
	with call to silent_catch_sigpipe().
	* io.c (redirect_string, gawk_popen): Ditto.
	(do_nothing_on_signal): New function.

2023-12-12  Eli Zaretskii  <eliz@gnu.org>

	* io.c (redirect_string): Check registered parsers before failing
	due to EISDIR.

2023-12-02         Arnold D. Robbins     <arnold@skeeve.com>

	* debug.c (print_array): Fix printing of multidimensional arrays.
	Thanks to Hermann Peifer for the report.

2023-11-28         Arnold D. Robbins     <arnold@skeeve.com>

	Straighten out Node_elem_new some more.  Thanks to "M"
	<c24p0101@gmail.com> for the report and to Andrew Schorr for
	the reduced test case.

	* awk.h (force_string_fmt): Don't clear NUMBER from the flags.
	(force_number): Handle Node_elem_new case. (Ooops.)
	* builtin.c (do_typeof): Make unassigned case check smarter.
	* mpfr.c (mpg_force_number): Don't clear STRING and don't
	change the string value.
	* node.c (r_force_number): Ditto.

2023-11-20         Arnold D. Robbins     <arnold@skeeve.com>

	* command.y (yylex): Change _("%s") into "%s". Sheesh.

2023-11-16         Arnold D. Robbins     <arnold@skeeve.com>

	* eval.c (cmp_scalars): Check for REGEX as well as STRING
	in order to do a string compare. Thanks to
	"*" <cl2ap0101@gmail.com> for the report.

2023-11-04         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Fix the spelling of "Ukrainian". Thanks to
	Bruce Horrocks.

2023-11-02         Arnold D. Robbins     <arnold@skeeve.com>

	* 5.3.0: Release tar ball made.

2023-10-31         Corinna Vinschen      <vinschen@redhat.com>

	* awk.h (wcitomb): Add declaration.
	* node.c (parse_escape): Use it on Cygwin.

2023-10-24         Arnold D. Robbins     <arnold@skeeve.com>

	* eval.c (setup_frame): Fix a potential use after free
	error. Thanks to Michal Jaegermann for the report.

2023-10-23         Arnold D. Robbins     <arnold@skeeve.com>

	* builtin.c (do_sub): Fix a use-after-free issue reported
	by Miguel Pineiro Jr. <mpj@pineiro.cc>.

2023-10-22         Arnold D. Robbins     <arnold@skeeve.com>

	* nonposix.h, re.c: Update coyright year.

2023-10-21         Arnold D. Robbins     <arnold@skeeve.com>

	* main.c (parse_args): Deal better with things if -p
	given twice. Thanks to Hermann Peifer for the report.
	* Checklist: Revised a bit.
	* awkgram.y (isnoeffect): Add Op_exec_count to the list so
	that `gawk --lint --profile BEGIN{0}' also produces a lint
	warning. Thanks yet again to Hermann Peifer.

2023-10-19         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.
	* README: Version bumped to 5.3.0. Updated info about makeinfo
	and texinfo.tex versions.

2023-10-17         Arnold D. Robbins     <arnold@skeeve.com>

	* re.c (make_regexp): Fix setting ok_to_escape.

2023-10-15         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Editing, in preparation for release.

2023-10-12         Eli Zaretskii  <eliz@gnu.org>

	* node.c (parse_escape) [__MINGW32__]: Use w32_wc_to_lc to convert
	Unicode codepoints.

	* nonposix.h (w32_wc_to_lc) [__MINGW32__]: Add prototype.

2023-10-08         Arnold D. Robbins     <arnold@skeeve.com>

	* node.c (parse_escape): Fix warning message for \u escape.
	* interpret.h (Op_lint_plus): Improve the test, especially
	for if dealing with user intput. Thanks to Hermann Peifer
	for the report.

2023-10-03         Arnold D. Robbins     <arnold@skeeve.com>

	* profile.c (pprint): Add case for Op_lint_plus. Thanks to
	Hermann Peifer for the report.

2023-09-19         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.

2023-09-13         Arnold D. Robbins     <arnold@skeeve.com>

	Fix handling of zero length matching in multibyte locales
	with sub/gsub. Thanks again to Ed Morton for the report.

	* builtin.c (do_sub): When the match is empty and we copy in
	the subsequent character, check gawk_mb_cur_max to know whether
	to copy one byte or multiple bytes.

2023-09-11         Arnold D. Robbins     <arnold@skeeve.com>

	* field.c (do_split): Fix some whitespace.

	Unrelated: Add do_csv variable to the API.

	* gawkapi.h: Bump major version to 4, minor version back to zero.
	(DO_FLAGS_SIZE): Increase to 7.
	(gawk_do_csv, do_csv): New macros.
	* gawkapi.c (init_ext_api): Init the do_csv element. Replace
	numeric indices with symbolic ones.
	* NEWS: Updated for do_csv in the API, and the major and
	minor API versions.

2023-09-01         Miguel Pineiro Jr     <mpj@pineiro.cc>

	Fix the handling of zero-length matches in multibyte locales.
	Thanks to Ed Morton <mortoneccc@comcast.net> for the report.

	* builtin.c (do_match): Translate rstart (byte idx to char idx)
	even when rlength is zero. For this we tweak the conversion of
	rlength to keep it in bounds when rstart and rlength are both 0.
	* node.c (str2wstr): Add an entry to the indices array for the
	terminating null. It facilitates the tweak above and is needed
	to translate the idx of a zero-width match at the end of the
	string.

2023-08-27         Arnold D. Robbins     <arnold@skeeve.com>

	* re.c (make_regexp): When do_traditional and looking to see
	if an escape created a metacharacter, use `metas' instead of
	a separate string, since BWK awk now also handles interval
	expressions. Found by inspection.

2023-08-25         Miguel Pineiro Jr     <mpj@pineiro.cc>

	* awk.h (enum escape_results): Fix ESCAPE_LINE_CONINUATION typo.
	* node.c (make_str_node): Ditto.
	* (parse_escape): Ditto.
	* re.c (make_regexp): Ditto.

	Unrelated: Use size_t for multibyte character lengths (aside
	from it being the type which the interfaces return, using it
	avoids implementation-defined behavior when -1 or -2 is cast
	to size_t then stored in an int).

	* node.c (make_str_node): Change mblen from int to size_t.

	Unrelated: Change the length of a translated escape sequence
	from int to size_t (to match the underlying interfaces).

	* awk.h (parse_escape): Change prototype.
	* node.c (make_str_node): Adjust to accomodate new type.
	* (parse_escape): Ditto.
	* re.c (make_regexp): Ditto.

	Unrelated: Clarify make_regexp, inspired by make_str_node.

	* re.c (make_regexp): Copy multibyte characters at once, move
	the escape sequence post-processing into the switch statement
	to explicitly connect a return value with its handling, add a
	default case to catch unrecognized values, and move ok_to_escape
	next to where it's used (and only set it once).

2023-08-21         Arnold D. Robbins     <arnold@skeeve.com>

	* node.c (make_str_node): Don't use N_() in cant_happen message.
	* re.c (make_regexp): Ditto.

2023-08-20         Arnold D. Robbins     <arnold@skeeve.com>

	Change parse_escape() to return an enum instead of relying
	on manifest constants.

	* awk.h (enum escape_results): New enum.
	(parse_escape): Now returns a value from it, add nbytes pointer
	parameter.
	* node.c (make_str_node): Revised to use switch/case on
	parse_escape return value.
	(parse_escape): Update code.
	* re.c (make_regexp): Revised to use switch/case on parse_escape
	return value.

2023-08-20         Miguel Pineiro Jr     <mpj@pineiro.cc>

	* awk.h (ELIDE_BACK_NL): Removed.
	(parse_escape): Update declaration.
	* main.c (cmdline_fs): Don't use ELIDE_BACK_NL.
	(arg_assign): Ditto.
	* node.c (make_str_node): Rework handling of return value
	from parse_escape.
	(parse_escape): Change return code to convey more info,
	fully parse escapes and handle conversion from unicode to
	UTF-8.
	* re.c (make_regexp): Rework for new interface to parse_escape.

2023-07-09         Arnold D. Robbins     <arnold@skeeve.com>

	* re.c (make_regexp): In error message, use the original text
	directly as a string and not with calculated length. Thanks
	to Neil R. Ormos <ormos-gnulists17@ormos.org> for the report.

2023-06-27         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.

2023-06-22         Arnold D. Robbins     <arnold@skeeve.com>

	* field.c (comma_parse_field): Don't set the field if len
	is zero. Kudos to BWK's awk for finding this gawk bug.

2023-06-12         Arnold D. Robbins     <arnold@skeeve.com>

	* main.c (cmdline_fs): Add ELIDE_BACK_NL to flags in call
	to make_str_node(). Fixes weirdness with -F. Thanks to
	Denys Vlasenko <dvlasenk@redhat.com> for the report.

2023-06-04         Arnold D. Robbins     <arnold@skeeve.com>

	* builtin.c (do_sub): Fix a Day 1 gensub bug, reported by
	Denys Vlasenko <dvlasenk@redhat.com>.

2023-06-02         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.

2023-05-07         Arnold D. Robbins     <arnold@skeeve.com>

	* 5.2.2: Release tar ball made.

2023-05-07         Arnold D. Robbins     <arnold@skeeve.com>

	* README: Update version.
	* debug.c: Update copyright year.

2023-04-22         Arnold D. Robbins     <arnold@skeeve.com>

	* awkgram.y, builtin.c, debug.c, eval.c, interpret.h,
	profile.c: Fix some implicit fall through warnings.
	Thanks to "Jannick" <thirdedition@gmx.net> for the report.

2023-04-21         Arnold D. Robbins     <arnold@skeeve.com>

	* array.c (asort_actual): Initialize `value' to avoid
	compiler complaints. Thanks to Michal Jaegermann
	for the report.
	* main.c (usage): Cast array subscript to int to silence
	a compiler warning. Thanks to "Jannick" <thirdedition@gmx.net>
	for the report.

2023-04-14         Arnold D. Robbins     <arnold@skeeve.com>

	* array.c (asort_actual): Handle Node_elem_new. Add braces
	for scoping, fixes tcc compiler error (GCC is too permissive!).
	Update copyright year.
	* Makefile.am, configure.ac, awk.h, agwkgram.y, builtin.c,
	command.y, eval.c, field.c, io.c, msg.c, node.c, profile.c,
	symbol.c: Update copyright year.

2023-04-13         Arnold D. Robbins     <arnold@skeeve.com>

	* array.c (asort_actual): Handle Node_var_new. Can happen
	if you sort SYMTAB. Thanks to zhou shuiqing
	<zhoushuiqing321@outlook.com> for the report.

2023-04-13         Andrew J. Schorr      <aschorr@telemetry-investments.com>

	* io.c (csvscan): Convert CR-LF pairs to plain LF, both at the
	end of the line and when embedded. Plain CRs are not touched.

2023-04-07         Andrew J. Schorr      <aschorr@telemetry-investments.com>

	* io.c (csvscan): Instead of stripping all carriage returns in the
	input, simply include the CR in the RT if it occurs just before
	the linefeed character.

2023-04-07         Arnold D. Robbins     <arnold@skeeve.com>

	* array.c (assoc_info): Update to handle additional cases so
	that one may dump SYMTAB or FUNCTAB. Issue reported by
	zhou shuiqing <zhoushuiqing321@outlook.com>.

2023-03-26         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.

2023-03-24         Arnold D. Robbins     <arnold@skeeve.com>

	Add support for \u escape sequence.

	* awk.h (parse_escaape): New bool* parameter for unicode.
	* node.c (make_str_node): Deal with a \u escape.
	(parse_escape): Handle \u.
	* re.c (make_regexp): Deal with a \u escape.

2023-03-24         Arnold D. Robbins     <arnold@skeeve.com>

	* io.c (set_RS): Fix first time and warning logic for csv mode.

2023-03-23         Arnold D. Robbins     <arnold@skeeve.com>

	* io.c (csvscan): Strip CRs.

2023-03-21         Manuel Collado        <mcollado2011@gmail.com>

	* io.c (csvscan): Real implementation.

2023-03-18         Miguel Pineiro Jr.    <mpj@pineiro.cc>

	Allow records longer than INT_MAX. For test cases,
	see https://lists.gnu.org/archive/html/bug-gawk/2021-05/msg00003.html.

	* awk.h (set_record): `cnt' is now size_t.
	* field.c (set_record): `cnt' is now size_t. Adjust databuf_size
	and MAX_SIZE macro.
	* io.c (get_a_record): Add new second parameter, size_t *len,
	which holds the size. Adjust return value meaning. Deal with
	return from an extension's get_a_record() function.
	(do_getline_redir): Adjust calling get_a_record().
	(do_getline): Ditto.
	(inrec): Ditto.

2023-03-17         Arnold D. Robbins     <arnold@skeeve.com>

	* field.c (do_split): Modify behavior for --csv.

2023-03-16         Arnold D. Robbins     <arnold@skeeve.com>

	* awk.h (enum do_flag_values): Add DO_CSV.
	(do_csv): New macro.
	(init_csv_fields, init_csv_records): Add declarations.
	* field.c (init_csv_fields): New function.
	(set_parser): Don't set the parser if doing CSV. Add warnings.
	* io.c (csvscan): New function (placeholder for now).
	(init_csv_records): New function.
	(set_RS): Don't set the parser if doing CSV. Add warnings.
	* main.c (optab): Add new options -k/--csv.
	(main): Fatal out if --posix and --csv. Call init_csv_records()
	and init_csv_fields().
	(usage): Add a line for the new options.
	(load_procinfo): Install PROCINFO["CSV"] if doing CSV.
	(parse_args): Update for new options.

2023-03-09         Arnold D. Robbins     <arnold@skeeve.com>

	* gawkapi.h: Update copyright year. Small edit in leading comment.

	Unrelated:

	* NEWS: Updated. Update copyright year.

2023-03-07         Arnold D. Robbins     <arnold@skeeve.com>

	* awkgram.y (optimize_assignment): Turn Op_store_field_exp
	into Op_store_field.  Add some explanatory comments.

2023-03-02         Arnold D. Robbins     <arnold@skeeve.com>

	* interpret.h (r_interpret): Revert this change of 2023-01-23,
	it's handled by the fix of 2023-02-27.

	| * interpret.h (r_interpret): Op_assign case, don't unref the
	| old lhs NODE until after the assignment. See test case in
	| the comment in the code and test/fieldassign.awk. Thanks to
	| Yasuhiro Yamada <yamada@gr3.ie> for the report.

	* gawkapi.h: Add a note at the top pointing to the online
	documentation, warning that the header file's comments aren't
	enough. Thanks to Eli Zaretskii <eliz@gnu.org> for the suggestion.

2023-02-27         Arnold D. Robbins     <arnold@skeeve.com>

	* gawkmisc.c: Use #elif. Update copyright year.

	Unrelated: Fix handling of $a = $b so that it's done OK also in
	expressions, and not just in statements. This fixes a memory
	leak seen with valgrind in test/fieldassign.awk.

	* awk.h (enum opcodeval): Add new member, Op_store_field_exp.
	* awkgram.y (mk_assignment): Generate Op_store_field_exp under the
	right circumstances.
	(optimize_assignment): Remove case for Op_field_spec_lhs.
	* eval.c (optypes): Add entry for Op_store_field.
	* interpret.h (r_interpret): Handle Op_store_field in the switch.
	* profile.c (pprint): Same.

	Unrelated: Improve how information is passed to input parsers:

	* io.c (iop_alloc): lstat() or stat() the file if could not be opened.
	See the doc for explanation as to why.
	* NEWS: Updated.

2023-02-26         Arnold D. Robbins     <arnold@skeeve.com>

	* Multiple files: Remove trailing whitespace.

2023-02-24         Arnold D. Robbins     <arnold@skeeve.com>

	* field.c (set_comma_field): Free the string node. Fixes a
	memory leak. Thanks to Andrew Schorr for the report.

2023-02-24         Arnold D. Robbins     <arnold@skeeve.com>

	* awk.h (boolval): Handle Node_var. Thanks to
	Daniel Pouzzner <douzzer@mega.nu> for the report, relayed
	by Andrew Schorr.
	* builtin.c (do_typeof): Handle Node_var, could come from a
	converted Node_elem_new. Thanks to Andrew Schorr for the
	report.

2023-02-23         Arnold D. Robbins     <arnold@skeeve.com>

	* io.c (find_input_parser): Improve check to see if iop is
	already being handled by an input parser. Found by
	code inspection.

	Unrelated:

	* awk.h (struct redirect): Change RED_NOBUF to RED_FLUSH.
	* builtin.c (efwrite): Ditto
	* io.c (redflags2str, check_duplicated_redirections,
	redirect_string): Ditto.

2023-02-12         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.

2023-02-10         Arnold D. Robbins     <arnold@skeeve.com>

	* io.c (avoid_flush): New function.
	(redirect_string): Use it when setting up an output pipeline.
	Thanks to Alexandre Ferrieux <alexandre.ferrieux@orange.com>
	for pointing out the performance issue.

2023-02-09         Arnold D. Robbins     <arnold@skeeve.com>

	* main.c (usage): Include URL for source code in the message.

2023-02-05         Arnold D. Robbins     <arnold@skeeve.com>

	* io.c (do_getline_redir): If `s' from get_a_record is NULL,
	pass "" to make_string() instead. Avoids undefined behavior
	complaint from GCC -fsanitize=undefined. Thanks to Sam James
	<sam@gentoo.org> for the report.
	(do_getline): Ditto.

2023-02-03         John E. Malmberg      <wb8tyw@qsl.net>

	* custom.h (bool) OpenVMS compilers may have a bool type

2023-02-02         John E. Malmberg      <wb8tyw@qsl.net>

	* custom.h (bool) OpenVMS compilers do not have a bool type

2023-01-31         Arnold D. Robbins     <arnold@skeeve.com>

	* interpret.h (r_interpret): For op_subscript, upref the variable
	if it's Node_var, also. Thanks to Volodymyr Gubarkov <xonixx@gmail.com>
	for the initial report and to Vincent Forest
	<vincent.forest@meso-star.com> for help in getting a small
	reproducer.
	Also, update the copyright year.

	* interpret.h (r_interpret): Op_assign case, don't unref the
	old lhs NODE until after the assignment. See test case in
	the comment in the code and test/fieldassign.awk. Thanks to
	Yasuhiro Yamada <yamada@gr3.ie> for the report.

2023-01-22         Arnold D. Robbins     <arnold@skeeve.com>

	* main.c: Update copyright year.
	(check_pma_security): New routine.
	(main): Call it.
	(UPDATE_YEAR): Bump to 2023.
	* NEWS: Updated.

2023-01-03         Arnold D. Robbins     <arnold@skeeve.com>

	* README: Updated with texinfo.tex and makeinfo versions.
	Update copyright year.

2022-12-27         Arnold D. Robbins     <arnold@skeeve.com>

	* main.c (extra_stack): Remove variable and its uses. Left over
	from libsigsegv cleanup.

2022-12-23         Arnold D. Robbins     <arnold@skeeve.com>

	* README: Updated with texinfo.tex version.

2022-12-22         Arnold D. Robbins     <arnold@skeeve.com>

	* README: Updated with texinfo.tex version.
	* NEWS: Updated.

2022-12-11         Arnold D. Robbins     <arnold@skeeve.com>

	* main.c (load_procinfo): Remove "mb_cur_max" and "utf8"
	entries, they're not of any real use.
	* NEWS: Updated.

2022-12-11         Arnold D. Robbins     <arnold@skeeve.com>

	* main.c (get_pma_version): Add declaration.
	(load_procinfo): Use it to set PROCINFO["pma"] if PMA is in use.
	Thanks to J Naman for the feature suggestion.
	* NEWS: Updated.

2022-12-04         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.
	* awk.h (nextfree): Include dimension so we know how big it is.
	(pma_save_free_lists): Declare new function.
	* main.c (main): Call pma_save_free_lists() via atexit() upon exit.
	(parse_args): Call pma_mpfr_check() unconditionally.
	* symbol.c (struct root pointer): Add copy of nextfree[] array.
	(init_symbol_table): On first alloc, zero out the root_pointers
	struct. On subsequent uses, copy saved nextfree into real nextfree.
	(pma_mpfr_check): Check using_persistent_malloc and return early if
	not using it.
	(pma_save_free_lists): New function to save nextfree.

2022-12-01         Arnold D. Robbins     <arnold@skeeve.com>

	Disallow using / not using -M across invocations of gawk with
	a persistent heap.

	* awk.h (pma_mpfr_check): Add declaration.
	* symbol.c (pma_mpfr_check): New function. Enhance root pointer
	structure.
	* main.c (parse_args): Call pma_mpfr_check() if using persisent
	malloc.

2022-12-01         Arnold D. Robbins     <arnold@skeeve.com>

	* configure.ac: Removed use of libsigsegv.
	* main.c: Removed code related to libsigsegv.
	* NEWS: Updated.

2022-11-25         Arnold D. Robbins     <arnold@skeeve.com>

	* field.c (comma_parse_field): Remove unused variable `field'.

2022-11-23         Arnold D. Robbins     <arnold@skeeve.com>

	* msg.c: Update to GPL 3.  Thanks to Corinna Vinschen for
	noticing the GPL version issue.
	* Makefile.am (install-exec-hook): Check for existence of the
	gawk-x.y.z file before hard linking. Otherwise make in POSIX
	mode is unhappy. Thanks to Tzvetelin Katchov <katchov@gnu.org>
	for the report.

2022-11-17         Arnold D. Robbins     <arnold@skeeve.com>

	* 5.2.1: Release tar ball made.

2022-11-17         Arnold D. Robbins     <arnold@skeeve.com>

	* configure.ac: Update version.
	* README: Updated.

2022-11-01         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.

2022-10-28         Arnold D. Robbins     <arnold@skeeve.com>

	* Makefile.am (DEBUG): New variable with debug compilation flags.
	* configure.ac: Rework debug compilation to use DEBUG in Makefile.am
	and to add %no-lines to grammar files. Works around GDB issue
	with macros and #line directives. Thanks to Ulrich Drepper
	for the help and for the suggestions.

2022-10-26         Arnold D. Robbins     <arnold@skeeve.com>

	* configure.ac: Try to get macros to work in the debugger.

2022-10-25         Arnold D. Robbins     <arnold@skeeve.com>

	* interpret.h (r_interpret): For Op_push*, simplify the code for
	Node_var_new and Node_elem_new.

2022-10-23         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.
	* debug.c (execute_code): Comment out declaration and assignment of
	save_stack_size variable. It's not used anymore.
	* configure.ac: Sync code for .developing with extension/configure.ac.

2022-10-23         Arnold D. Robbins     <arnold@skeeve.com>

	* awkgram.y (mk_binary): Check that divisor is a number before
	checking it's zero. Thanks to Ben Hoyt <benhoyt@gmail.com> for
	the report.

2022-10-20  Paul Eggert  <eggert@cs.ucla.edu>

	Port to current Gnulib
	Adjust to current Gnulib, which uses C23 style keywords for bool,
	true, false and static_assert, and assumes that <config.h>
	supplies compatibility macros on older systems.

	* awk.h: Do not include stdbool.h.
	* configure.ac: Use gl_C_BOOL, not AC_HEADER_STDBOOL.

2022-10-20         Arnold D. Robbins     <arnold@skeeve.com>

	* NEWS: Updated.

2022-10-14         Andrew J. Schorr      <aschorr@telemetry-investments.com>

	* awkgram.y: Use Node_var_new instead of Node_var_array for
	a subscript expression.
	* gawkapi.c (api_sym_update): Make things smarter for dealing
	with an untyped variable that needs to become an array.

2022-10-14         Arnold D. Robbins     <arnold@skeeve.com>

	* symbol.c (make_symbol): Save and restore symbol_table in
	the root_pointers struct instead of using lookup.
	(func_count, var_count): Removed the variables and their uses.
	(get_symbols): Getting functions, use the_table->table_size for
	the count, not func_count.

2022-10-11         Arnold D. Robbins     <arnold@skeeve.com>

	* symbol.c (get_symbols): Getting variables, use
	the_table->table_size for the count, not var_count. Bug
	was tickled when using --dump-var together with persistent
	memory. (Why didn't valgrind catch this?)  Thanks to Hermann
	Peifer for the report. Thanks to Terence Kelly for detective work
	that helped pinpoint the search area for the bug.

2022-09-30         Arnold D. Robbins     <arnold@skeeve.com>
[--snip--]
