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 28Jan 14, 2025 29 Fix incorrect error line number issues. unput has 30 no business managing lineno. Thanks to Ozan Yigit. 31 32Jan 05, 2025 33 Fix hex detection in is_valid_number. 34 Fix indirect field specification with non-numeric string 35 eg. $("foo") in indirect. This is not illegal. 36 Thanks to Arnold Robbins. 37 38Jan 01, 2025 39 Fixed openfile to not try to read from a directory. 40 Thanks to Arnold Robbins. 41 42Jul 28, 2024 43 Fixed readcsvrec resize segfault when reading csv records longer 44 than 8k. Thanks to Ozan Yigit. 45 mktime() added to bsd-features branch. Thanks to Todd Miller. 46 47Jun 23, 2024 48 Fix signal for system-status test. Thanks to Tim van der Molen. 49 Rewrite if-else chain as switch. Thanks to Andrew Sukach. 50 51May 27, 2024 52 Spelling fixes and removal of unneeded prototypes and extern. 53 Thanks to Jonathan Gray. 54 55May 4, 2024 56 Fixed a use-after-free bug with ARGV for "delete ARGV". 57 Also ENVtab is no longer global. Thanks to Benjamin Sturz 58 for spotting the ARGV issue and Todd Miller for the fix. 59 60May 3, 2024: 61 Remove warnings when compiling with g++. Thanks to Arnold Robbins. 62 63Apr 22, 2024: 64 Fixed regex engine gototab reallocation issue that was 65 Introduced during the Nov 24 rewrite. Thanks to Arnold Robbins. 66 Fixed a scan bug in split in the case the separator is a single 67 character. Thanks to Oguz Ismail for spotting the issue. 68 69Mar 10, 2024: 70 Fixed use-after-free bug in fnematch due to adjbuf invalidating 71 the pointers to buf. Thanks to github user caffe3 for spotting 72 the issue and providing a fix, and to Miguel Pineiro Jr. 73 for the alternative fix. 74 MAX_UTF_BYTES in fnematch has been replaced with awk_mb_cur_max. 75 thanks to Miguel Pineiro Jr. 76 77Jan 22, 2024: 78 Restore the ability to compile with g++. Thanks to 79 Arnold Robbins. 80 81Dec 24, 2023: 82 Matchop dereference after free problem fix when the first 83 argument is a function call. Thanks to Oguz Ismail Uysal. 84 Fix inconsistent handling of --csv and FS set in the 85 command line. Thanks to Wilbert van der Poel. 86 Casting changes to int for is* functions. 87 88Nov 27, 2023: 89 Fix exit status of system on MacOS. Update to REGRESS. 90 Thanks to Arnold Robbins. 91 Fix inconsistent handling of -F and --csv, and loss of csv 92 mode when FS is set. 93 94Nov 24, 2023: 95 Fix issue #199: gototab improvements to dynamically resize the 96 table, qsort and bsearch to improve the lookup speed as the 97 table gets larger for multibyte input. Thanks to Arnold Robbins. 98 99Nov 23, 2023: 100 Fix Issue #169, related to escape sequences in strings. 101 Thanks to Github user rajeevvp. 102 Fix Issue #147, reported by Github user drawkula, and fixed 103 by Miguel Pineiro Jr. 104 105Nov 20, 2023: 106 Rewrite of fnematch to fix a number of issues, including 107 extraneous output, out-of-bounds access, number of bytes 108 to push back after a failed match etc. 109 Thanks to Miguel Pineiro Jr. 110 111Nov 15, 2023: 112 Man page edit, regression test fixes. Thanks to Arnold Robbins 113 Consolidation of sub and gsub into dosub, removing duplicate 114 code. Thanks to Miguel Pineiro Jr. 115 gcc replaced with cc everywhere. 116 117Oct 30, 2023: 118 Multiple fixes and a minor code cleanup. 119 Disabled utf-8 for non-multibyte locales, such as C or POSIX. 120 Fixed a bad char * cast that causes incorrect results on big-endian 121 systems. Also fixed an out-of-bounds read for empty CCL. 122 Fixed a buffer overflow in substr with utf-8 strings. 123 Many thanks to Todd C Miller. 124 125Sep 24, 2023: 126 fnematch and getrune have been overhauled to solve issues around 127 unicode FS and RS. Also fixed gsub null match issue with unicode. 128 Big thanks to Arnold Robbins. 129 130Sep 12, 2023: 131 Fixed a length error in u8_byte2char that set RSTART to 132 incorrect (cannot happen) value for EOL match(str, /$/). 133 134 135----------------------------------------------------------------- 136 137[This entry is a summary, not a precise list of changes.] 138 139 Added --csv option to enable processing of comma-separated 140 values inputs. When --csv is enabled, fields are separated 141 by commas, fields may be quoted with " double quotes, fields 142 may contain embedded newlines. 143 144 If no explicit separator argument is provided, split() uses 145 the setting of --csv to determine how fields are split. 146 147 Strings may now contain UTF-8 code points (not necessarily 148 characters). Functions that operate on characters, like 149 length, substr, index, match, etc., use UTF-8, so the length 150 of a string of 3 emojis is 3, not 12 as it would be if bytes 151 were counted. 152 153 Regular expressions are processed as UTF-8. 154 155 Unicode literals can be written as \u followed by one 156 to eight hexadecimal digits. These may appear in strings and 157 regular expressions. 158