1/**************************************************************** 2Copyright (C) Lucent Technologies 1997 3All Rights Reserved 4 5Permission to use, copy, modify, and distribute this software and 6its documentation for any purpose and without fee is hereby 7granted, provided that the above copyright notice appear in all 8copies and that both that the copyright notice and this 9permission notice and warranty disclaimer appear in supporting 10documentation, and that the name Lucent Technologies or any of 11its entities not be used in advertising or publicity pertaining 12to distribution of the software without specific, written prior 13permission. 14 15LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 16INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. 17IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY 18SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 19WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 20IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 21ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF 22THIS SOFTWARE. 23****************************************************************/ 24 25This file lists all bug fixes, changes, etc., made since the 26second edition of the AWK book was published in September 2023. 27 28Jun 23, 2024 29 Fix signal for system-status test. Thanks to Tim van der Molen. 30 Rewrite if-else chain as switch. Thanks to Andrew Sukach. 31 32May 27, 2024 33 Spelling fixes and removal of unneeded prototypes and extern. 34 Thanks to Jonathan Gray. 35 36May 4, 2024 37 Fixed a use-after-free bug with ARGV for "delete ARGV". 38 Also ENVtab is no longer global. Thanks to Benjamin Sturz 39 for spotting the ARGV issue and Todd Miller for the fix. 40 41May 3, 2024: 42 Remove warnings when compiling with g++. Thanks to Arnold Robbins. 43 44Apr 22, 2024: 45 Fixed regex engine gototab reallocation issue that was 46 Introduced during the Nov 24 rewrite. Thanks to Arnold Robbins. 47 Fixed a scan bug in split in the case the separator is a single 48 character. Thanks to Oguz Ismail for spotting the issue. 49 50Mar 10, 2024: 51 Fixed use-after-free bug in fnematch due to adjbuf invalidating 52 the pointers to buf. Thanks to github user caffe3 for spotting 53 the issue and providing a fix, and to Miguel Pineiro Jr. 54 for the alternative fix. 55 MAX_UTF_BYTES in fnematch has been replaced with awk_mb_cur_max. 56 thanks to Miguel Pineiro Jr. 57 58Jan 22, 2024: 59 Restore the ability to compile with g++. Thanks to 60 Arnold Robbins. 61 62Dec 24, 2023: 63 Matchop dereference after free problem fix when the first 64 argument is a function call. Thanks to Oguz Ismail Uysal. 65 Fix inconsistent handling of --csv and FS set in the 66 command line. Thanks to Wilbert van der Poel. 67 Casting changes to int for is* functions. 68 69Nov 27, 2023: 70 Fix exit status of system on MacOS. Update to REGRESS. 71 Thanks to Arnold Robbins. 72 Fix inconsistent handling of -F and --csv, and loss of csv 73 mode when FS is set. 74 75Nov 24, 2023: 76 Fix issue #199: gototab improvements to dynamically resize the 77 table, qsort and bsearch to improve the lookup speed as the 78 table gets larger for multibyte input. Thanks to Arnold Robbins. 79 80Nov 23, 2023: 81 Fix Issue #169, related to escape sequences in strings. 82 Thanks to Github user rajeevvp. 83 Fix Issue #147, reported by Github user drawkula, and fixed 84 by Miguel Pineiro Jr. 85 86Nov 20, 2023: 87 Rewrite of fnematch to fix a number of issues, including 88 extraneous output, out-of-bounds access, number of bytes 89 to push back after a failed match etc. 90 Thanks to Miguel Pineiro Jr. 91 92Nov 15, 2023: 93 Man page edit, regression test fixes. Thanks to Arnold Robbins 94 Consolidation of sub and gsub into dosub, removing duplicate 95 code. Thanks to Miguel Pineiro Jr. 96 gcc replaced with cc everywhere. 97 98Oct 30, 2023: 99 Multiple fixes and a minor code cleanup. 100 Disabled utf-8 for non-multibyte locales, such as C or POSIX. 101 Fixed a bad char * cast that causes incorrect results on big-endian 102 systems. Also fixed an out-of-bounds read for empty CCL. 103 Fixed a buffer overflow in substr with utf-8 strings. 104 Many thanks to Todd C Miller. 105 106Sep 24, 2023: 107 fnematch and getrune have been overhauled to solve issues around 108 unicode FS and RS. Also fixed gsub null match issue with unicode. 109 Big thanks to Arnold Robbins. 110 111Sep 12, 2023: 112 Fixed a length error in u8_byte2char that set RSTART to 113 incorrect (cannot happen) value for EOL match(str, /$/). 114 115 116----------------------------------------------------------------- 117 118[This entry is a summary, not a precise list of changes.] 119 120 Added --csv option to enable processing of comma-separated 121 values inputs. When --csv is enabled, fields are separated 122 by commas, fields may be quoted with " double quotes, fields 123 may contain embedded newlines. 124 125 If no explicit separator argument is provided, split() uses 126 the setting of --csv to determine how fields are split. 127 128 Strings may now contain UTF-8 code points (not necessarily 129 characters). Functions that operate on characters, like 130 length, substr, index, match, etc., use UTF-8, so the length 131 of a string of 3 emojis is 3, not 12 as it would be if bytes 132 were counted. 133 134 Regular expressions are processed as UTF-8. 135 136 Unicode literals can be written as \u followed by one 137 to eight hexadecimal digits. These may appear in strings and 138 regular expressions. 139