/**************************************************************** Copyright (C) Lucent Technologies 1997 All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that the copyright notice and this permission notice and warranty disclaimer appear in supporting documentation, and that the name Lucent Technologies or any of its entities not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ****************************************************************/ This file lists all bug fixes, changes, etc., made since the second edition of the AWK book was published in September 2023. Jan 22, 2024: Restore the ability to compile with g++. Thanks to Arnold Robbins. Dec 24, 2023: Matchop dereference after free problem fix when the first argument is a function call. Thanks to Oguz Ismail Uysal. Fix inconsistent handling of --csv and FS set in the command line. Thanks to Wilbert van der Poel. Casting changes to int for is* functions. Nov 27, 2023: Fix exit status of system on MacOS. Update to REGRESS. Thanks to Arnold Robbins. Fix inconsistent handling of -F and --csv, and loss of csv mode when FS is set. Nov 24, 2023: Fix issue #199: gototab improvements to dynamically resize the table, qsort and bsearch to improve the lookup speed as the table gets larger for multibyte input. Thanks to Arnold Robbins. Nov 23, 2023: Fix Issue #169, related to escape sequences in strings. Thanks to Github user rajeevvp. Fix Issue #147, reported by Github user drawkula, and fixed by Miguel Pineiro Jr. Nov 20, 2023: Rewrite of fnematch to fix a number of issues, including extraneous output, out-of-bounds access, number of bytes to push back after a failed match etc. Thanks to Miguel Pineiro Jr. Nov 15, 2023: Man page edit, regression test fixes. Thanks to Arnold Robbins Consolidation of sub and gsub into dosub, removing duplicate code. Thanks to Miguel Pineiro Jr. gcc replaced with cc everywhere. Oct 30, 2023: Multiple fixes and a minor code cleanup. Disabled utf-8 for non-multibyte locales, such as C or POSIX. Fixed a bad char * cast that causes incorrect results on big-endian systems. Also fixed an out-of-bounds read for empty CCL. Fixed a buffer overflow in substr with utf-8 strings. Many thanks to Todd C Miller. Sep 24, 2023: fnematch and getrune have been overhauled to solve issues around unicode FS and RS. Also fixed gsub null match issue with unicode. Big thanks to Arnold Robbins. Sep 12, 2023: Fixed a length error in u8_byte2char that set RSTART to incorrect (cannot happen) value for EOL match(str, /$/). ----------------------------------------------------------------- [This entry is a summary, not a precise list of changes.] Added --csv option to enable processing of comma-separated values inputs. When --csv is enabled, fields are separated by commas, fields may be quoted with " double quotes, fields may contain embedded newlines. If no explicit separator argument is provided, split() uses the setting of --csv to determine how fields are split. Strings may now contain UTF-8 code points (not necessarily characters). Functions that operate on characters, like length, substr, index, match, etc., use UTF-8, so the length of a string of 3 emojis is 3, not 12 as it would be if bytes were counted. Regular expressions are processed as UTF-8. Unicode literals can be written as \u followed by one to eight hexadecimal digits. These may appear in strings and regular expressions.