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diff --git a/coreutils-5.3.0-bin/contrib/gawk/3.1.6/gawk-3.1.6-src/NEWS b/coreutils-5.3.0-bin/contrib/gawk/3.1.6/gawk-3.1.6-src/NEWS new file mode 100644 index 0000000..a0ba8db --- /dev/null +++ b/coreutils-5.3.0-bin/contrib/gawk/3.1.6/gawk-3.1.6-src/NEWS @@ -0,0 +1,2486 @@ + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, + 2005, 2006, 2007 Free Software Foundation, Inc. + + Copying and distribution of this file, with or without modification, + are permitted in any medium without royalty provided the copyright + notice and this notice are preserved. + +Changes from 3.1.5 to 3.1.6 +--------------------------- + +1. `gawk 'program' /non/existant/file' no longer core dumps. + +2. Too many people the world over have complained about gawk's use of the + locale's decimal point for parsing input data instead of the traditional + period. So, even though gawk was being nicely standards-compliant, in + a Triumph For The Users, gawk now only uses the locale's decimal point + if --posix is supplied or if POSIXLY_CORRECT is set. It is the sincere + hope that this change will eliminate this FAQ from being asked. + +3. `gawk -v BINMODE=1 ...' works again. + +4. Internal file names like `/dev/user' now work again. (Note that these + file names are obsolete and will go away eventually.) + +5. Problems with wide strings in non "C" locales have been straightened + out everywhere. (At least, we think so.) + +6. Use of `ansi2knr' is no longer supported. Please use an ANSI C compiler. + +7. Updated to Autoconf 2.61, Automake 1.10, and Gettext 0.16.1. + +8. The getopt* and regex* files were synchronized with current GLIBC CVS. + See the ChangeLog for the versions and minor edits made. + +9. There are additional --lint-old warnings. + +10. Gawk now uses getaddrinfo(3) to look up names and IP addresses. This + allows the use of an IPv6 format address and paves the way for + eventual addition of `/inet6/...' and `/inet4/...' hostnames. + +11. We believe gawk to now be valgrind clean. At least when run against + the test suite. + +12. A number of issues dealing with the formatting and printing of very + large numbers in integer formats have been dealt with and fixed. + +13. Gawk now converts "+inf", "-inf", "+nan" and "-nan" into the corresponding + magic IEEE floating point values. Only those strings (case independent) + work. With --posix, gawk calls the system strtod directly. You asked + for it, you got it, you deal with it. + +14. Defining YYDEBUG enables the -D command line option. + +15. Gawk should now work out of the box on Tandem NSK/OSS systems. + +16. Lint messages rationalized: many more of the messages are now printed + only once, instead of every time they are encountered. + +17. The strftime() function now accepts an optional third argument, which + if non-zero or non-null, indicates that the time should be formatted + as UTC instead of as local time. + +18. The precedence of concatenation and `| getline' (in something like + "echo " "date" | getline stuff) has been reverted to the earlier + behavior and now once again matches Unix awk. + +19. New configure time flag --disable-directories-fatal which causes + gawk to silently skip directories on the command line. This behavior + is also enabled for --traditional, since it's what Unix awk does. + +20. A new option, --use-lc-numeric, forces use of the locale's decimal + point without the rest of the draconian restrictions imposed by + --posix. This softens somewhat the stance taken in item #2. + +21. Everything relevant has been updated to the GPL 3. + +22. Array growth should be faster now, at no cost in space. + +23. Lots more tests. + +24. One new translation. + +25. Various bugs fixed, see the ChangeLog for details. + +Changes from 3.1.4 to 3.1.5 +--------------------------- + +1. The random() suite has been updated to a current FreeBSD version, which + works on systems with > 32-bit ints. + +2. A new option, `--exec' has been added. It's like -f but ends option + processing. It also disables `x=y' variable assignments, but not -v. + It's needed mainly for CGI scripts, so that source code can't be + passed in as part of the URL. + +3. dfa.[ch] have been synced with GNU grep development. This also fixes + multiple regex matching problems in multibyte locales. + +4. Updated to Automake 1.9.5. + +5. Updated to Bison 2.0. + +6. The getopt* and regex* files were synchronized with current GLIBC CVS. + See the ChangeLog for the versions and minor edits made. + +7. `configure --disable-nls' now disables just gawk's own translations. + Gawk continues to work with the locale's numeric formatting. This + includes a bug fix in handling the printf ' flag (e.g., %'d). + +8. Gawk is now multibyte aware. This means that index(), length(), + substr() and match() all work in terms of characters, not bytes. + +9. Gawk is now smarter about parsing numeric constants in corner cases. + +11. Not closing open redirections no longer causes gawk to exit non-zero. + +10. The VMS port has been updated. + +11. Changes from Andrew Schorr at the xmlgawk project to provide for + open hooks from extensions are now included. This will let the + xmlgawk extension work in the standard gawk. + +12. Updated to gettext 0.14.4. Gawk no longer includes its own copy + of the gettext `intl' library, following current GNU practice to + rely on there being an external version thereof. + +13. A regexp of the form `//' will now generate a warning that it + is not a C++ comment from --lint (awk.y). + +14. The ^ and ^= operators with an integer exponent now use Exponentiation + by Squaring. This simultaneously fixes a problem with ^= and a negative + integer exponent. + +15. length(array) now returns the number of elements in the array. This is + is a non-standard extension that will fail in POSIX mode. + +16. Carriage return characters are now ignored in program source code. + +17. Four new translations added. + +18. Various minor bugs fixed. See the ChangeLog for the details. + +Changes from 3.1.3 to 3.1.4 +--------------------------- + +1. Gawk now supports the POSIX %F format, falling back to %f if the local + system printf doesn't handle it. + +2. Gawk now supports the ' flag in printf. E.g., %'d in a locale with thousands + separators includes the thousands separator in the value, e.g. 12,345. + + This has one problem; the ' flag is next to impossible to use on the + command line, without major quoting games. Oh well, TANSTAAFL. + +3. The dfa code has been reinstated; the performance degradation was + just too awful. Sigh. (For fun, use `export GAWK_NO_DFA=1' to + see the difference.) + +4. The special case `x = x y' is now recognized in the grammar, and gawk + now uses `realloc' to append the new value to the end of the existing + one. This can speed up the common case of appending onto a string. + +5. The dfa code was upgraded with most of the fixes from grep 2.5.1, and + the regex code was upgraded with GLIBC as mid-January 2004. The regex + code is faster than it was, but still not as fast as the dfa code, so + the dfa code stays in. The getopt code was also synced to current GLIBC. + +6. Support code upgraded to Automake 1.8.5, Autoconf 2.59, and gettext 0.14.1. + +7. When --posix is in effect, sub/gsub now follow the 2001 POSIX behavior. + Yippee. This is even documented in the manual. + +8. Gawk will now recover children that have died (input pipelines, two-way + pipes), upon detecting EOF from them, thus avoiding filling + up the process table. Open file descriptors are not recovered + (unfortunately), since that could break awk semantics. See the + ChangeLog and the source code for the details. + +9. Handling of numbers like `0,1' in non-American locales ought to + work correctly now. + +10. IGNORECASE is now locale-aware for characters with values above 128. + The dfa matcher is now used for IGNORECASE matches too. + +11. Dynamic function loading is better. The documentation has been improved + and some new APIs for use by dynamic functions have been added. + +12. Gawk now has a fighting chance of working on older systems, + a la SunOS 4.1.x. + +13. Issues with multibyte support on HP-UX are now resolved. `configure' now + disables such support there, since it's not up to what gawk needs. + +14. There are now even more tests in the test suite. + +15. Various bugs fixed; see ChangeLog for the details. + +Changes from 3.1.2 to 3.1.3 +--------------------------- + +1. Gawk now follows POSIX in handling of local numeric formats for + input, output and number/string conversions. + +2. Multibyte detection improved. See README_d/README.multibyte for more + info about multibyte locales. + +3. Handling of `close' made more POSIX-compliant for POSIXLY_CORRECT, + see the documentation. + +4. The record reading code was redone, again. This time it's much + better. Really! + +5. For RS = "\n" and RS = "", gawk now only sets RT when it has changed. + This provides considerable performance improvement. + +6. `match' now sets all the subscripts in the third argument array + correctly, even if not all subexpressions matched. + +7. Updated to Automake 1.7.5. configure.in renamed configure.ac. + +8. C-style switch statements are available, but must be enabled at + compile time via `configure --enable-switch'. For 3.2 they'll be + enabled by default. Thanks to Michael Benzinger for the initial + code. + +9. %c now always prints no more than one character, whatever + precision is provided. + +10. strtonum(<number>) now works again. + +11. Gawk is now much better about scalar/array typing of global + uninitiailzed variables passed as parameters. Once the parameter + is then used one way or the other, the global var's type is + adjusted accordingly. Thanks to Stepan Kasal for the original + (considerable) changes. + +12. Dynamic function loading under Windows32 should now be possible. See + README_d/README.pcdynamic. Thanks to Patrick T.J. McPhee for the changes. + +13. Updated to gettext 0.12.1. + +14. Gawk now follows historical practice and POSIX for the return + value of `rand': It's now 0 <= N < 1. + +Changes from 3.1.1 to 3.1.2 +--------------------------- + +1. Loops of the form: + + for (iggy in foo) + next + + no longer leak memory. + +2. gawk -v FIELDWIDTHS="..." now sets PROCINFO["FS"] correctly. + +3. All builtin operations and functions should now fully evaluate their + arguments so that side effects take place correctly. + +4. Fixed a logic bug in gsub/gensub for matches to null strings that occurred + later in the string after a nonnull match. + +5. getgroups code now works on Ultrix again. + +6. Completely new version of the full GNU regex engine now in place. + +7. Argument parsing and variable assignment has been cleaned up. + +8. An I/O bug on HP-UX has been documented and worked around. See + README_d/README.hpux. + +9. awklib/grcat should now compile correctly. + +10. Updated to automake 1.7.3, autoconf 2.57 and gettext 0.11.5 ; thanks to + Paul Eggert for the initial automake and autoconf work. + +11. As a result of #6, removed the use of the dfa code from GNU grep. + +12. It is now possible to use ptys for |& two-way pipes instead of + pipes. The basic plumbing for this was provided by Paolo Bonzini. + To make this happen: + + command = "unix command etc" + PROCINFO[command, "pty"] = 1 + + print ... |& command + command |& getline stuff + + In other words, set the element in PROCINFO *before* opening the + two-way pipe, and then gawk will use ptys instead of pipes. + + On systems without ptys or where all the ptys are in use, gawk + will fall back to using plain pipes. + +13. Fixed a regex matching across buffer boundaries bug, with a + heuristic. See io.c:rsre_get_a_record. + +14. Profiling no longer dumps core if there are extension functions in place. + +15. Grammar and scanner cleaned up, courtesy of Stepen Kasal, to hopefully + once and for all fix the `/=' operator vs. `/=.../' regex ambiguity. + Lots of other grammar simplifications applied, as well. + +16. BINMODE should work now on more Windows ports. + +17. Updated to bison 1.875. Includes fix to bisonfix.sed script. + +18. The NODE structure is now 20% (8 bytes) smaller (on x86, anyway), which + should help conserve memory. + +19. Builds not in the source directory should work again. + +20. Arrays now use 2 NODE's per element instead of three. Combined with + #18, (on the x86) this reduces the overhead from 120 bytes per element + to just 64 bytes: almost a 50% improvement. + +21. Programs that make heavy use of changing IGNORECASE should now be + much faster, particularly if using a regular expression for FS or RS. + IGNORECASE now correctly affects RS regex record splitting, as well. + +22. IGNORECASE no longer affects single-character field splitting (FS = "c"), + or single-character record splitting (RS = "c"). + + This cleans up some weird behavior, and makes gawk better match the + documentation, which says it only affects regex-based field splitting + and record splitting. + + The documentation on this was improved, too. + +23. The framework in test/ has been simplified, making it much easier to + add new tests while keeping the size of Makefile.am reasonable. Thanks + for this to Stepan Kasal. + +24. --lint=invalid causes lint warnings only about stuff that's actually + invalid. This needs additional work. + +25. More translations. + +26. The `get_a_record' routine has been revamped (currently by splitting it + into three variants). This should improve long-term maintainability. + +27. `match' now adds more entries to 3rd array arg: + match("the big dog", /([a-z]+) ([a-z]+) ([a-z]+)/, data) + fills in variables: + data[1, "start"], data[1, "length"], and so on. + +28. New `asorti' function with same interface as `asort', but sorts indices + instead of values. + +29. Documentation updated to FDL 1.2. + +30. New `configure' option --disable-lint at compile time disables lint + checking. With GCC dead-code-elimination, cuts almost 200K off the + executable size on GNU/Linux x86. Presumably speeds up runtime. + + Using this will cause some of the tests in the test suite to fail. + This option may be removed at a later date. + +31. Various minor cleanups, see the ChangeLog for details. + +Changes from 3.1.0 to 3.1.1 +--------------------------- + +1. Six new translations. + +2. Having more than 4 different values for OFMT and/or CONVFMT now works. + +3. The handling of dynamic regexes is now more more sane, esp. w.r.t. + the profiling code. The profiling code has been fixed in several + places. + +4. The return value of index("", "") is now 1. + +5. Gawk should no longer close fd 0 in child processes. + +6. Fixed test for strtod semantics and regenerated configure. + +7. Gawk can now be built with byacc; an accidental bison dependency was + removed. + +8. `yyerror' will no longer dump core on long source lines. + +9. Gawk now correctly queries getgroups(2) to figure out how many groups + the process has. + +10. New configure option to force use of included strftime, e.g. on + Solaris systems. See `./configure --help' for the details. Replaced + the included strftime.c with the one from textutils. + +11. OS/2 port has been updated. + +12. Multi-byte character support has been added, courtesy of IBM Japan. + +13. The `for (iggy in foo) delete foo[iggy]' -> `delete foo' optimisation + now works. + +14. Upgraded to gettext 0.11.2 and automake 1.5. + +15. Full gettext compatibility (new dcngettext function). + +16. The O'Reilly copyedits and indexing changes for the documentation have + been folded into the texinfo version of the manuals. + +17. A humongously long value for the AWKPATH environment variable will no + longer dump core. + +18. Configuration / Installation issues have been straightened out in + Makefile.am. + +Changes from 3.0.6 to 3.1.0 +--------------------------- + +1. A new PROCINFO array provides info about the process. The non-I/O /dev/xxx + files are now obsolete, and their use always generates a warning. + +2. A new `mktime' builtin function was added for creating time stamps. The + `mktime' function written in awk was removed from the user's guide. + +3. New `--gen-po' option creates GNU gettext .po files for strings marked + with a leading underscore. + +4. Gawk now completely interprets special file names internally, ignoring the + existence of real /dev/stdin, /dev/stdout files, etc. + +5. The mmap code was removed. It was a worthwhile experiment that just + didn't work out. + +6. The BINMODE variable is new; on non-UNIX systems it affects how gawk + opens files for text vs. binary. + +7. The atari port is now unsupported. + +8. Gawk no longer supports `next file' as two words. + +9. On systems that support it, gawk now sets the `close on exec' flag on all + files and pipes it opens. This makes sure that child processes run via + `system' or pipes have plenty of file descriptors available. + +10. New ports: Tandem and BeOS. The Tandem port is unsupported. + +11. If `--posix' is in effect, newlines are not allowed after ?:. + +12. Weird OFMT/CONVFMT formats no longer cause fatal errors. + +13. Diagnostics about array parameters now include the parameter's name, + not just its number. + +14. configure should now automatically add -D_SYSV3 for ISC Unix. + (This seems to have made it into the gawk 3.0.x line long ago.) + +15. It is now possible to open a two-way pipe via the `|&' operator. + See the discussion in the manual about putting `sort' into such a pipeline, + though. (NOTE! This is borrowed from ksh: it is not the same as + the same operator in csh!) + +16. The `close' function now takes an optional second string argument + that allows closing one or the other end of the two-way pipe to + a co-process. This is needed to use `sort' in a co-process, see + the doc. + +17. If TCP/IP is available, special file names beginning with `/inet' + can be used with `|&' for IPC. Thanks to Juergen Kahrs for the initial + code. + +18. With `--enable-portals' on the configure command line, gawk will also + treat file names that start with `/p/' as a 4.4 BSD type portal file, + i.e., a two-way pipe for `|&'. + +19. Unrecognized escapes, such as "\q" now always generate a warning. + +20. The LINT variable is new; it provides dynamic control over the --lint + option. + +21. Lint warnings can be made fatal by using --lint=fatal or `LINT = "fatal"'. + Use this if you're really serious about portable code. + +22. Due to an enhanced sed script, there is no longer any need to worry + about finding or using alloca. alloca.c is thus now gone. + +23. A number of lint warnings have been added. Most notably, gawk will + detect if a variable is used before assigned to. Warnings for + when a string that isn't a number gets converted to a number are + in the code but disabled; they seem to be too picky in practice. + + Also, gawk will now warn about function parameter names that shadow + global variable names. + +24. It is now possible to dynamically add builtin functions on systems + that support dlopen. This facility is not (yet) as portable or well + integrated as it might be. *** WARNING *** THIS FEATURE WILL EVOLVE! + +25. There are *many* new tests in the test suite. + +26. Profiling has been added! A separate version of gawk, named pgawk, is + built and generates a run-time execution profile. The --profile option + can be used to change the default output file. In regular gawk, this + option pretty-prints the parse tree. + +27. Gawk has been internationalized, using GNU gettext. Translations for + future distributions are most welcome. Simultaneously, gawk was switched + over to using automake. You need Automake 1.4a (from the CVS archive) + if you want to muck with the Makefile.am files. + +28. New `asort' function for sorting arrays. See the doc for details. + +29. The match function takes an optional array third argument to hold + the text matched by parenthesized sub-expressions. + +30. The bit op functions and octal and hex source code constants are on by + default, no longer a configure-time option. Recognition of non-decimal + data is now enabled at runtime with --non-decimal-data command line option. + +31. Internationalization features available at the awk level: new TEXTDOMAIN + variable and `bindtextdomain' and `dcgettext' functions. printf formats + may contain the "%2$3.5d" kind of notation for use in translations. See + the texinfo manual for details. + +32. The return value from `close' has been rationalized. Most notably, + closing something that wasn't open returns -1 but remains non-fatal. + +33. The array effeciency change from 3.0.5 was reverted; the semantics were + not right. Additionally, index values of previously stored elements + can no longer change dynamically. + +34. The new option --dump-variables dumps a list of all global variables and + their final types and values to a file you give, or to `awkvars.out'. + +35. Gawk now uses a recent version of random.c courtesy of the FreeBSD + project. + +36. The gawk source code now uses ANSI C function definitions (new style), + with ansi2knr to translate code for old compilers. + +37. `for (iggy in foo)' loops should be more robust now in the face of + adding/deleting elements in the middle; they loop over just the elements + that are present in the array when the loop starts. + +Changes from 3.0.5 to 3.0.6 +--------------------------- + +This is a bug fix release only, pending further development on 3.1.0. + +Bugs fixed and changes made: + +1. Subscripting an array with a variable that is just a number no + longer magically converts the variable into a string. + +2. Similarly, running a `for (iggy in foo)' loop where `foo' is a + function parameter now works correctly. + +3. Similarly, `i = ""; v[i] = a; if (i in v) ...' now works again. + +4. Gawk now special cases `for (iggy in foo) delete foo[iggy]' and + treats it as the moral equivalent of `delete foo'. This should be + a major efficiency win when portably deleting large arrays. + +5. VMS port brought up to date. + +Changes from 3.0.4 to 3.0.5 +--------------------------- + +This is a bug fix release only, pending further development on 3.1.0. + +Bugs Fixed: + + 1. `function foo(foo)' is now a fatal error. + + 2. Array indexing is now much more efficient: where possible, only one + copy of an index string is kept, even if used in multiple arrays. + + 3. Support was added for MacOS X and an `install-strip' target. + + 4. [s]printf formatting for `0' flag and floating point formats now + works correctly. + + 5. HP-UX large file support with GCC 2.95.1 now works. + + 6. Arguments that contain `=' but that aren't syntactically valid are + now treated as filenames, instead of as fatal errors. + + 7. `-v NF=foo' now works. + + 8. Non-ascii alphanumeric characters are now treated as such in the + right locales by regex.c. Similarly, a Latin-1 y-umlaut (decimal + value 255) in the program text no longer acts like EOF. + + 9. Array indexes are always compared as strings; fixes an obscure bug + when user input gets used for the `x in array' test. + +10. The usage message now points users to the documentation for how + to report bugs. + +11. `/=' now works after an array. + +12. `b += b += 1' now works correctly. + +13. IGNORECASE changing with calls `match' now works better. (Fix for + semi-obscure bug.) + +14. Multicharacter values for RS now generate a lint warning. + +15. The gawk open file caching is now much more efficient. + +16. Global arrays passed to functions are now managed better. In particular, + test/arynocls.awk won't crash referencing freed memory. + +17. In obscure cases, `getline var' can no longer clobber $0. + +Changes from 3.0.3 to 3.0.4 +--------------------------- + +This is a bug fix release only, pending further development on 3.1.0. + +Bugs Fixed: + + 1. A memory leak when turning a function parameter into an array was + fixed. + + 2. The non-decimal data option now works correctly. + + 3. Using an empty pair of brackets as an array subscript no longer causes + a core dump during parsing. In general, syntax errors should not + cause core dumps any more. + + 4. Standard input is no longer closed if it provides program source, + avoiding strange I/O problems. + + 5. Memory corruption during printing with `print' has been fixed. + + 6. The gsub function now correctly counts the number of matches. + + 7. A typo in doc/Makefile.in has been fixed, making installation work. + + 8. Calling `next' or `nextfile' from a BEGIN or END rule is now fatal. + + 9. Subtle problems in rebuilding $0 when fields were changed have been + fixed. + +10. `FS = FS' now correctly turns off the use of FIELDWIDTHS. + +11. Gawk now parses fields correctly when FS is a single character. + +12. It is now possible for RS to be the NUL character ("\0"). + +13. Weird problems with number conversions on MIPS and other systems + have been fixed. + +14. When parsing using FIELDWIDTHS is in effect, `split' with no third + argument will still use the value of FS. + +15. Large File Support for Solaris, HP-UX, AIX, and IRIX is now enabled at + compile time, thanks to Paul Eggert. + +16. Attempting to use the name of a function as a variable or array + from within the function is now caught as a fatal error, instead + of as a core dump. + +17. A bug in parsing hex escapes was fixed. + +18. A weird bug with concatenation where one expression has side effects + that changes another was fixed. + +19. printf/sprintf now behave much better for uses of the '0' and '#' flags + and with precisions and field widths. + +20. Further strangenesses with concatenation and multiple accesses of some + of the special variables was fixed. + +21. The Atari port is marked as no longer supported. + +22. Build problems on HP-UX have been fixed. + +23. Minor fixes and additional explanations added to the documentation. + +24. For RS = "", even a single leading newline is now correctly stripped. + +25. Obscure parsing problems for regex constants like /=.../ fixed, so + that a regex constant is recognized, and not the /= operator. + +26. Fixed a bug when closing a redirection that matched the current + or last FILENAME. + +27. Build problems on AIX fixed. + +Changes from 3.0.2 to 3.0.3 +--------------------------- + +The horrendous per-record memory leak introduced in 3.0.1 is gone, finally. + +The `amiga' directory is now gone; Amiga support is now entirely handled +by the POSIX support. + +Windows32 support has been added in the `pc' directory. See `README_d/README.pc' +for more info. + +The mmap changes are disabled in io.c, and will be removed entirely +in the next big release. They were an interesting experiment that just +really didn't work in practice. + +A minor memory leak that occurred when using `next' from within a +function has also been fixed. + +Problems with I/O from sub-processes via a pipe are now gone. + +Using "/dev/pid" and the other special /dev files no longer causes a core dump. + +The files regex.h, regex.c, getopt.h, getopt.c, and getopt1.c have been +merged with the versions in GNU libc. Thanks to Ulrich Drepper for his help. + +Some new undocumented features have been added. Use the source, Luke! +It is not clear yet whether these will ever be fully supported. + +Array performance should be much better for very very large arrays. "Virtual +memory required, real memory helpful." + +builtin.c:do_substr rationalized, again. + +The --re-interval option now works as advertised. + +The license text on some of the missing/* files is now generic. + +Lots more new test cases. + +Lots of other small bugs fixed, see the ChangeLog files for details. + +Changes from 3.0.1 to 3.0.2 +--------------------------- + +Gawk now uses autoconf 2.12. + +strftime now behaves correctly if passed an empty format string or if +the string formats to an empty result string. + +Several minor compilation and installation problems have been fixed. + +Minor page break issues in the user's guide have been fixed. + +Lexical errors no longer repeat ad infinitum. + +Changes from 3.0.0 to 3.0.1 +--------------------------- + +Troff source for a handy-dandy five color reference card is now provided. +Thanks to SSC for their macros. + +Gawk now behaves like Unix awk and mawk, in that newline acts as white +space for separating fields and for `split', by default. In posix mode, +only space and tab separate fields. The documentation has been updated to +reflect this. + +Tons and tons of small bugs fixed and new tests added, see the ChangeLogs. + +Lots fewer compile time warnings from gcc -Wall. Remaining ones aren't +worth fixing. + +Gawk now pays some attention to the locale settings. + +Fixes to gsub to catch several corner cases. + +The `print' statement now evaluates all expressions first, and then +prints them. This leads to less suprising behaviour if any expression has +output side effects. + +Miscellanious improvements in regex.h and regex.c. + +Gawk will now install itself as gawk-M.N.P in $(bindir), and link +`gawk' to it. This makes it easy to have multiple versions of gawk +simultaneously. It will also now install itself as `awk' in $(bindir) +if there is no `awk' there. This is in addition to installing itself as +`gawk'. This change benefits the Hurd, and possibly other systems. One +day, gawk will drop the `g', but not yet. + +`--posix' turns on interval expressions. Gawk now matches its documentation. + +`close(FILENAME)' now does something meaningful. + +Field management code in field.c majorly overhauled, several times. + +The gensub code has been fixed, several bugs are now gone. + +Gawk will use mmap for data file input if it is available. + +The printf/sprintf code has been improved. + +Minor issues in Makefile setup worked on and improved. + +builtin.c:do_substr rationalized. + +Regex matching fixed so that /+[0-9]/ now matches the leading +. + +For building on vms, the default compiler is now DEC C rather than VAX C. + +Changes from 2.15.6 to 3.0.0 +---------------------------- + +Fixed spelling of `Programming' in the copyright notice in all the files. + +New --re-interval option to turn on interval expressions. They're off +by default, except for --posix, to avoid breaking old programs. + +Passing regexp constants as parameters to user defined functions now +generates a lint warning. + +Several obscure regexp bugs fixed; alas, a small number remain. + +The manual has been thoroughly revised. It's now almost 50% bigger than +it used to be. + +The `+' modifier in printf is now reset correctly for each item. + +The do_unix variable is now named do_traditional. + +Handling of \ in sub and gsub rationalized (somewhat, see the manual for +the gory [and I do mean gory] details). + +IGNORECASE now uses ISO 8859-1 Latin-1 instead of straight ASCII. See the +source for how to revert to pure ASCII. + +--lint will now warn if an assignment occurs in a conditional context. +This may become obnoxious enough to need turning off in the future, but +"it seemed like a good idea at the time." + +%hf and %Lf are now diagnosed as invalid in printf, just like %lf. + +Gawk no longer incorrectly closes stdin in child processes used in +input pipelines. + +For integer formats, gawk now correctly treats the precision as the +number of digits to print, not the number of characters. + +gawk is now much better at catching the use of scalar values when +arrays are needed, both in function calls and the `x in y' constructs. + +New gensub function added. See the manual. + +If do_tradtional is true, octal and hex escapes in regexp constants are +treated literally. This matches historical behavior. + +yylex/nextc fixed so that even null characters can be included +in the source code. + +do_format now handles cases where a format specifier doesn't end in +a control letter. --lint reports an error. + +strftime() now uses a default time format equivalent to that of the +Unix date command, thus it can be called with no arguments. + +Gawk now catches functions that are used but not defined at parse time +instead of at run time. (This is a lint error, making it fatal could break +old code.) + +Arrays that max out are now handled correctly. + +Integer formats outside the range of an unsigned long are now detected +correctly using the SunOS 4.x cc compiler. + +--traditional option added as new preferred name for --compat, in keeping +with GCC. + +--lint-old option added, so that warnings about things not in old awk +are only given if explicitly asked for. + +`next file' has changed to one word, `nextfile'. `next file' is still +accepted but generates a lint warning. `next file' will go away eventually. + +Gawk with --lint will now notice empty source files and empty data files. + +Amiga support using the Unix emulation added. Thanks to fnf@ninemoons.com. + +test/Makefile is now "parallel-make safe". + +Gawk now uses POSIX regexps + GNU regex ops by default. --posix goes to +pure posix regexps, and --compat goes to traditional Unix regexps. However, +interval expressions, even though specified by POSIX, are turned off by +default, to avoid breaking old code. + +IGNORECASE now applies to string comparison as well as regexp operations. + +The AT&T Bell Labs Research awk fflush builtin function is now supported. +fflush is extended to flush stdout if no arg and everything if given +the null string as an argument. + +If RS is more than one character, it is treated as a regular expression +and records are delimited accordingly. The variable RT is set to the record +terminator string. This is disabled in compatibility mode. + +If FS is set to the null string (or the third arg. of split() is the null +string), splitting is done at every single character. This is disabled in +compatibility mode. + +Gawk now uses the Autoconf generated configure script, doing away with all +the config/* files and the machinery that went with them. The Makefile.in +has also changed accordingly, complete with all the standard GNU Makefile +targets. (Non-unix systems may still have their own config.h and Makefile; +see the appropriate README_d/README.* and/or subdirectory.) + +The source code has been cleaned up somewhat and the formatting improved. + +Changes from 2.15.5 to 2.15.6 +----------------------------- + +Copyrights updated on all changed files. + +test directory enhanced with four new tests. + +Gawk now generates a warning for \x without following hexadecimal digits. +In this case, it returns 'x', not \0. + +Several fixes in main.c related to variable initialization: + CONVFMT has a default value + resetup is called before initializing variables + the varinit table fixed up a bit (see the comments) + +gawk.1 updated with new BUG REPORTS section. + +A plain `print' inside a BEGIN or END now generates a lint warning (awk.y). + +Small fix in iop.c:get_a_record to avoid reading uninitialized memory. + +awk.y:yylex now does a better job of handling things if the source file +does not end in a newline. Probably there is more work to be done. + +Memory leaks fixed in awk.y, particularly in cases of duplicate function +parameters. Also, calling a function doesn't leak memory during parsing. + +Empty function bodies are now allowed (awk.y). + +Gawk now detects duplicate parameter names in functions (awk.y). + +New function `error' in msg.c added for use from awk.y. + +eval.c:r_get_lhs now checks if its argument is a parameter on the stack, +and pulls down the real variable. This catches more 'using an array as +a scalar' kinds of errors. + +main.c recovers C alloca space after parsing, this is important for +bison-based parsers. re.c recovers C alloca space after doing an research. +[Changes from Pat Rankin] + +builtin.c now declares the random() related functions based on +RANDOM_MISSING from config.h. [Suggested by Pat Rankin] + +awk.h now handles alloca correctly for HP-UX. [Kaveh Ghazi] + +regex.h and config/cray60 updated for Unicos 8.0. [Hal Peterson] + +Fixed re.c and dfa.c so that gawk no longer leaks memory when using +lots of dynamic regexps. + +Removed dependency on signed chars from `idx' variable in awk.h. Gawk +now passes its test suite if compiled with `gcc -fno-signed-char'. + +Fixed warning on close in io.c to go under lint control. Too many people +have complained about the spurious message, particularly when closing a +child pipeline early. + +Gawk now correctly handles RS = "" when input is from a terminal +(iop.c:get_a_record). + +Config file added for GNU. + +gawk 'BEGIN { exit 1 } ; END { exit }' now exits 1, as it should +(eval.c:interpret). + +sub and gsub now follow posix, \ escapes both & and \. Each \ must +be doubled initially in the program to get it into the string. +Thanks to Mike Brennan for pointing this out (builtin.c:sub_common). + +If FS is "", gawk behaves like mawk and nawk, making the whole record be $1. +Yet Another Dark Corner. Sigh (field.c:def_parse_field). + +Gawk now correctly recomputes string values for numbers if CONVFMT has +changed (awk.h:force_string, node.c:r_force_string). + +A regexp of the form `/* this looks like a comment but is not */' will +now generate a warning from --lint (awk.y). + +Gawk will no longer core dump if given an empty input file (awk.y:get_src_buf, +iop.c:optimal_bufsize). + +A printf format of the form %lf is handled correctly. The `l' generates +a lint warning (builtin.c:format_tree) [Thanks to Mark Moraes]. + +Lynxos config file added. + +`continue' outside a loop treated as `next' only in compatibility mode, +instead of by default; recent att nawk chokes on this now. `break' +outside a loop now treated as `next' in compatibility mode (eval.c). + +Bug fix in string concatenation, an arbitrary number of expressions +are allowed (eval.c). + +$1 += $2 now works correctly (eval.c). + +Changing IGNORECASE no longer resets field-splitting to FS if it was +using FIELDWIDTHS (eval.c, field.c). + +Major enhancement: $0 and NF for last record read are now preserved +into the END rule (io.c). + +Regexp fixes: + /./ now matches a newline (regex.h) + ^ and $ match beginning and end of string only, not any embedded + newlines (re.c) + regex.c should compile and work ok on 64-bit mips/sgi machines + +Changes from 2.15.4 to 2.15.5 +----------------------------- + +FUTURES file updated and re-arranged some with more rational schedule. + +Many prototypes handled better for ANSI C in protos.h. + +getopt.c updated somewhat. + +test/Makefile now removes junk directory, `bardargtest' renamed `badargs.' + +Bug fix in iop.c for RS = "". Eat trailing newlines off of record separator. + +Bug fix in Makefile.bsd44, use leading tab in actions. + +Fix in field.c:set_FS for FS == "\\" and IGNORECASE != 0. + +Config files updated or added: + cray60, DEC OSF/1 2.0, Utek, sgi405, next21, next30, atari/config.h, + sco. + +Fix in io.c for ENFILE as well as EMFILE, update decl of groupset to +include OSF/1. + +Rationalized printing as integers if numbers are outside the range of a long. +Changes to node.c:force_string and builtin.c. + +Made internal NF, NR, and FNR variables longs instead of ints. + +Add LIMITS_H_MISSING stuff to config.in and awk.h, and default defs for +INT_MAX and LONG_MAX, if no limits.h file. Add a standard decl of +the time() function for __STDC__. From ghazi@noc.rutgers.edu. + +Fix tree_eval in awk.h and r_tree_eval in eval.c to deal better with +function parameters, particularly ones that are arrays. + +Fix eval.c to print out array names of arrays used in scalar contexts. + +Fix eval.c in interpret to zero out source and sourceline initially. This +does a better job of providing source file and line number information. + +Fix to re_parse_field in field.c to not use isspace when RS = "", but rather +to explicitly look for blank and tab. + +Fix to sc_parse_field in field.c to catch the case of the FS character at the +end of a record. + +Lots of miscellanious bug fixes for memory leaks, courtesy Mark Moraes, +also fixes for arrays. + +io.c fixed to warn about lack of explicit closes if --lint. + +Updated missing/strftime.c to match posted strftime 6.2. + +Bug fix in builtin.c, in case of non-match in sub_common. + +Updated constant used for division in builtin.c:do_rand for DEC Alpha +and CRAY Y-MP. + +POSIXLY_CORRECT in the environment turns on --posix (fixed in main.c). + +Updated srandom prototype and calls in builtin.c. + +Fix awk.y to enforce posix semantics of unary +: result is numeric. + +Fix array.c to not rearrange the hash chain upon finding an index in +the array. This messed things up in cases like: + for (index1 in array) { + blah + if (index2 in array) # blew away the for + stuff + } + +Fixed spelling errors in the man page. + +Fixes in awk.y so that + gawk '' /path/to/file +will work without core dumping or finding parse errors. + +Fix main.c so that --lint will fuss about an empty program. +Yet another fix for argument parsing in the case of unrecognized options. + +Bug fix in dfa.c to not attempt to free null pointers. + +Bug fix in builtin.c to only use DEFAULT_G_PRECISION for %g or %G. + +Bug fix in field.c to achieve call by value semantics for split. + +Changes from 2.15.3 to 2.15.4 +----------------------------- + +Lots of lint fixes, and do_sprintf made mostly ANSI C compatible. + +Man page updated and edited. + +Copyrights updated. + +Arrays now grow dynamically, initially scaling up by an order of magnitude + and then doubling, up to ~ 64K. This should keep gawk's performance + graceful under heavy load. + +New `delete array' feature added. Only documented in the man page. + +Switched to dfa and regex suites from grep-2.0. These offer the ability to + move to POSIX regexps in the next release. + +Disabled GNU regex ops. + +Research awk -m option now recognized. It does nothing in gawk, since gawk + has no static limits. Only documented in the man page. + +New bionic (faster, better, stronger than before) hashing function. + +Bug fix in argument handling. `gawk -X' now notices there was no program. + Additional bug fixes to make --compat and --lint work again. + +Many changes for systems where sizeof(int) != sizeof(void *). + +Add explicit alloca(0) in io.c to recover space from C alloca. + +Fixed file descriptor leak in io.c. + +The --version option now follows the GNU coding standards and exits. + +Fixed several prototypes in protos.h. + +Several tests updated. On Solaris, warn that the out? tests will fail. + +Configuration files for SunOS with cc and Solaris 2.x added. + +Improved error messages in awk.y on gawk extensions if do_unix or do_compat. + +INSTALL file added. + +Fixed Atari Makefile and several VMS specific changes. + +Better conversion of numbers to strings on systems with broken sprintfs. + +Changes from 2.15.2 to 2.15.3 +----------------------------- + +Increased HASHSIZE to a decent number, 127 was way too small. + +FILENAME is now the null string in a BEGIN rule. + +Argument processing fixed for invalid options and missing arguments. + +This version will build on VMS. This included a fix to close all files + and pipes opened with redirections before closing stdout and stderr. + +More getpgrp() defines. + +Changes for BSD44: <sys/param.h> in io.c and Makefile.bsd44. + +All directories in the distribution are now writable. + +Separated LDFLAGS and CFLAGS in Makefile. CFLAGS can now be overridden by + user. + +Make dist now builds compressed archives ending in .gz and runs doschk. + +Amiga port. + +New getopt.c fixes Alpha OSF/1 problem. + +Make clean now removes possible test output. + +Improved algorithm for multiple adjacent string concatenations leads to + performance improvements. + +Fix nasty bug whereby command-line assignments, both with -v and at run time, + could create variables with syntactically illegal names. + +Fix obscure bug in printf with %0 flag and filling. + +Add a lint check for substr if provided length exceeds remaining characters + in string. + +Update atari support. + +PC support enhanced to include support for both DOS and OS/2. (Lots more + #ifdefs. Sigh.) + +Config files for Hitachi Unix and OSF/1, courtesy of Yoko Morishita + (morisita@sra.co.jp) + +Changes from 2.15.1 to 2.15.2 +----------------------------- + +Additions to the FUTURES file. + +Document undefined order of output when using both standard output + and /dev/stdout or any of the /dev output files that gawk emulates in + the absence of OS support. + +Clean up the distribution generation in Makefile.in: the info files are + now included, the distributed files are marked read-only and patched + distributions are now unpacked in a directory named with the patch level. + +Changes from 2.15 to 2.15.1 +--------------------------- + +Close stdout and stderr before all redirections on program exit. This allows + detection of write errors and also fixes the messages test on Solaris 2.x. + +Removed YYMAXDEPTH define in awk.y which was limiting the parser stack depth. + +Changes to config/bsd44, Makefile.bsd44 and configure to bring it into line + with the BSD4.4 release. + +Changed Makefile to use prefix, exec_prefix, bindir etc. + +make install now installs info files. + +make install now sets permissions on installed files. + +Make targets added: uninstall, distclean, mostlyclean and realclean. + +Added config.h to cleaner and clobber make targets. + +Changes to config/{hpux8x,sysv3,sysv4,ultrix41} to deal with alloca(). + +Change to getopt.h for portability. + +Added more special cases to the getpgrp() call. + +Added README.ibmrt-aos and config/ibmrt-aos. + +Changes from 2.14 to 2.15 +--------------------------- + +Command-line source can now be mixed with library functions. + +ARGIND variable tracks index in ARGV of FILENAME. + +GNU style long options in addition to short options. + +Plan 9 style special files interpreted by gawk: + /dev/pid + /dev/ppid + /dev/pgrpid + /dev/user + $1 = getuid + $2 = geteuid + $3 = getgid + $4 = getegid + $5 ... $NF = getgroups if supported + +ERRNO variable contains error string if getline or close fails. + +Very old options -a and -e have gone away. + +Inftest has been removed from the default target in test/Makefile -- the + results were too machine specific and resulted in too many false alarms. + +A README.amiga has been added. + +The "too many arguments supplied for format string" warning message is only + in effect under the lint option. + +Code improvements in dfa.c. + +Fixed all reported bugs: + + Writes are checked for failure (such as full filesystem). + + Stopped (at least some) runaway error messages. + + gsub(/^/, "x") does the right thing for $0 of 0, 1, or more length. + + close() on a command being piped to a getline now works properly. + + The input record will no longer be freed upon an explicit close() + of the input file. + + A NUL character in FS now works. + + In a substitute, \\& now means a literal backslash followed by what + was matched. + + Integer overflow of substring length in substr() is caught. + + An input record without a newline termination is handled properly. + + In io.c, check is against only EMFILE so that system file table + is not filled. + + Renamed all files with names longer than 14 characters. + + Escaped characters in regular expressions were being lost when + IGNORECASE was used. + + Long source lines were not being handled properly. + + Sourcefiles that ended in a tab but no newline were bombing. + + Patterns that could match zero characters in split() were not working + properly. + + The parsedebug option was not working. + + The grammar was being a bit too lenient, allowing some very dubious + programs to pass. + + Compilation with DEBUG defined now works. + + A variable read in with getline was not being treated as a potential + number. + + Array subscripts were not always of string type. + + +Changes from 2.13.2 to 2.14 +--------------------------- + +Updated manual! + +Added "next file" to skip efficiently to the next input file. + +Fixed potential of overflowing buffer in do_sprintf(). + +Plugged small memory leak in sub_common(). + +EOF on a redirect is now "sticky" -- it can only be cleared by close()ing + the pipe or file. + +Now works if used via a #! /bin/gawk line at the top of an executable file + when that line ends with whitespace. + +Added some checks to the grammar to catch redefinition of builtin functions. + This could eventually be the basis for an extension to allow redefining + functions, but in the mean time it's a good error catching facility. + +Negative integer exponents now work. + +Modified do_system() to make sure it had a non-null string to be passed + to system(3). Thus, system("") will flush any pending output but not go + through the overhead of forking an un-needed shell. + +A fix to floating point comparisons so that NaNs compare right on IEEE systems. + +Added code to make sure we're not opening directories for reading and such. + +Added code to do better diagnoses of weird or null file names. + +Allow continue outside of a loop, unless in strict posix mode. Lint option + will issue warning. + +New missing/strftime.c. There has been one change that affects gawk. Posix + now defines a %V conversion so the vms conversion has been changed to %v. + If this version is used with gawk -Wlint and they use %V in a call to + strftime, they'll get a warning. + +Error messages now conform to GNU standard (I hope). + +Changed comparisons to conform to the description found in the file POSIX. + This is inconsistent with the current POSIX draft, but that is broken. + Hopefully the final POSIX standard will conform to this version. + (Alas, this will have to wait for 1003.2b, which will be a revision to + the 1003.2 standard. That standard has been frozen with the broken + comparison rules.) + +The length of a string was a short and now is a size_t. + +Updated VMS help. + +Added quite a few new tests to the test suite and deleted many due to lack of + written releases. Test output is only removed if it is identical to the + "good" output. + +Fixed a couple of bugs for reference to $0 when $0 is "" -- particularly in + a BEGIN block. + +Fixed premature freeing in construct "$0 = $0". + +Removed the call to wait_any() in gawk_popen(), since on at least some systems, + if gawk's input was from a pipe, the predecessor process in the pipe was a + child of gawk and this caused a deadlock. + +Regexp can (once again) match a newline, if given explicitly. + +nextopen() makes sure file name is null terminated. + +Fixed VMS pipe simulation. Improved VMS I/O performance. + +Catch . used in variable names. + +Fixed bug in getline without redirect from a file -- it was quitting after the + first EOF, rather than trying the next file. + +Fixed bug in treatment of backslash at the end of a string -- it was bombing + rather than doing something sensible. It is not clear what this should mean, + but for now I issue a warning and take it as a literal backslash. + +Moved setting of regexp syntax to before the option parsing in main(), to + handle things like -v FS='[.,;]' + +Fixed bug when NF is set by user -- fields_arr must be expanded if necessary + and "new" fields must be initialized. + +Fixed several bugs in [g]sub() for no match found or the match is 0-length. + +Fixed bug where in gsub() a pattern anchored at the beginning would still + substitute throughout the string. + +make test does not assume that . is in PATH. + +Fixed bug when a field beyond the end of the record was requested after + $0 was altered (directly or indirectly). + +Fixed bug for assignment to field beyond end of record -- the assigned value + was not found on subsequent reference to that field. + +Fixed bug for FS a regexp and it matches at the end of a record. + +Fixed memory leak for an array local to a function. + +Fixed hanging of pipe redirection to getline + +Fixed coredump on access to $0 inside BEGIN block. + +Fixed treatment of RS = "". It now parses the fields correctly and strips + leading whitespace from a record if FS is a space. + +Fixed faking of /dev/stdin. + +Fixed problem with x += x + +Use of scalar as array and vice versa is now detected. + +IGNORECASE now obeyed for FS (even if FS is a single alphabetic character). + +Switch to GPL version 2. + +Renamed awk.tab.c to awktab.c for MSDOS and VMS tar programs. + +Renamed this file (CHANGES) to NEWS. + +Use fmod() instead of modf() and provide FMOD_MISSING #define to undo + this change. + +Correct the volatile declarations in eval.c. + +Avoid errant closing of the file descriptors for stdin, stdout and stderr. + +Be more flexible about where semi-colons can occur in programs. + +Check for write errors on all output, not just on close(). + +Eliminate the need for missing/{strtol.c,vprintf.c}. + +Use GNU getopt and eliminate missing/getopt.c. + +More "lint" checking. + + +Changes from 2.13.1 to 2.13.2 +----------------------------- + +Toward conformity with GNU standards, configure is a link to mkconf, the latter + to disappear in the next major release. + +Update to config/bsd43. + +Added config/apollo, config/msc60, config/cray2-50, config/interactive2.2 + +sgi33.cc added for compilation using cc rather than gcc. + +Ultrix41 now propagates to config.h properly -- as part of a general + mechanism in configure for kludges -- #define anything from a config file + just gets tacked onto the end of config.h -- to be used sparingly. + +Got rid of an unnecessary and troublesome declaration of vprintf(). + +Small improvement in locality of error messages. + +Try to diagnose use of array as scalar and vice versa -- to be improved in + the future. + +Fix for last bug fix for Cray division code--sigh. + +More changes to test suite to explicitly use sh. Also get rid of + a few generated files. + +Fixed off-by-one bug in string concatenation code. + +Fix for use of array that is passed in from a previous function parameter. + Addition to test suite for above. + +A number of changes associated with changing NF and access to fields + beyond the end of the current record. + +Change to missing/memcmp.c to avoid seg. fault on zero length input. + +Updates to test suite (including some inadvertently left out of the last patch) + to invoke sh explicitly (rather than rely on #!/bin/sh) and remove some + junk files. test/chem/good updated to correspond to bug fixes. + +Changes from 2.13.0 to 2.13.1 +----------------------------- + +More configs and PORTS. + +Fixed bug wherein a simple division produced an erroneous FPE, caused by + the Cray division workaround -- that code is now #ifdef'd only for + Cray *and* fixed. + +Fixed bug in modulus implementation -- it was very close to the above + code, so I noticed it. + +Fixed portability problem with limits.h in missing.c + +Fixed portability problem with tzname and daylight -- define TZNAME_MISSING + if strftime() is missing and tzname is also. + +Better support for Latin-1 character set. + +Fixed portability problem in test Makefile. + +Updated PROBLEMS file. + +=============================== gawk-2.13 released ========================= +Changes from 2.12.42 to 2.12.43 +------------------------------- + +Typo in awk.y + +Fixed up strftime.3 and added doc. for %V. + +Changes from 2.12.41 to 2.12.42 +------------------------------- + +Fixed bug in devopen() -- if you had write permission in /dev, + it would just create /dev/stdout etc.!! + +Final (?) VMS update. + +Make NeXT use GFMT_WORKAROUND + +Fixed bug in sub_common() for substitute on zero-length match. Improved the + code a bit while I was at it. + +Fixed grammar so that $i++ parses as ($i)++ + +Put support/* back in the distribution (didn't I already do this?!) + +Changes from 2.12.40 to 2.12.41 +------------------------------- + +VMS workaround for broken %g format. + +Changes from 2.12.39 to 2.12.40 +------------------------------- + +Minor man page update. + +Fixed latent bug in redirect(). + +Changes from 2.12.38 to 2.12.39 +------------------------------- + +Updates to test suite -- remove dependence on changing gawk.1 man page. + +Changes from 2.12.37 to 2.12.38 +------------------------------- + +Fixed bug in use of *= without whitespace following. + +VMS update. + +Updates to man page. + +Option handling updates in main.c + +test/manyfiles redone and added to bigtest. + +Fixed latent (on Sun) bug in handling of save_fs. + +Changes from 2.12.36 to 2.12.37 +------------------------------- + +Update REL in Makefile-dist. Incorporate test suite into main distribution. + +Minor fix in regtest. + +Changes from 2.12.35 to 2.12.36 +------------------------------- + +Release takes on dual personality -- 2.12.36 and 2.13.0 -- any further + patches before public release won't count for 2.13, although they will for + 2.12 -- be careful to avoid confusion! patchlevel.h will be the last thing + to change. + +Cray updates to deal with arithmetic problems. + +Minor test suite updates. + +Fixed latent bug in parser (freeing memory). + +Changes from 2.12.34 to 2.12.35 +------------------------------- + +VMS updates. + +Flush stdout at top of err() and stderr at bottom. + +Fixed bug in eval_condition() -- it wasn't testing for MAYBE_NUM and + doing the force_number(). + +Included the missing manyfiles.awk and a new test to catch the above bug which + I am amazed wasn't already caught by the test suite -- it's pretty basic. + +Changes from 2.12.33 to 2.12.34 +------------------------------- + +Atari updates -- including bug fix. + +More VMS updates -- also nuke vms/version.com. + +Fixed bug in handling of large numbers of redirections -- it was probably never + tested before (blush!). + +Minor rearrangement of code in r_force_number(). + +Made chem and regtest tests a bit more portable (Ultrix again). + +Added another test -- manyfiles -- not invoked under any other test -- very Unix + specific. + +Rough beginning of LIMITATIONS file -- need my AWK book to complete it. + +Changes from 2.12.32 to 2.12.33 +------------------------------- + +Expunge debug.? from various files. + +Remove vestiges of Floor and Ceil kludge. + +Special case integer division -- mainly for Cray, but maybe someone else + will benefit. + +Workaround for iop_close closing an output pipe descriptor on Cray -- + not conditional since I think it may fix a bug on SGI as well and I don't + think it can hurt elsewhere. + +Fixed memory leak in assoc_lookup(). + +Small cleanup in test suite. + +Changes from 2.12.31 to 2.12.32 +------------------------------- + +Nuked debug.c and debugging flag -- there are better ways. + +Nuked version.sh and version.c in subdirectories. + +Fixed bug in handling of IGNORECASE. + +Fixed bug when FIELDWIDTHS was set via -v option. + +Fixed (obscure) bug when $0 is assigned a numerical value. + +Fixed so that escape sequences in command-line assignments work (as it already + said in the comment). + +Added a few cases to test suite. + +Moved support/* back into distribution. + +VMS updates. + +Changes from 2.12.30 to 2.12.31 +------------------------------- + +Cosmetic manual page changes. + +Updated sunos3 config. + +Small changes in test suite including renaming files over 14 chars. in length. + +Changes from 2.12.29 to 2.12.30 +------------------------------- + +Bug fix for many string concatenations in a row. + +Changes from 2.12.28 to 2.12.29 +------------------------------- + +Minor cleanup in awk.y + +Minor VMS update. + +Minor atari update. + +Changes from 2.12.27 to 2.12.28 +------------------------------- + +Got rid of the debugging goop in eval.c -- there are better ways. + +Sequent port. + +VMS changes left out of the last patch -- sigh! config/vms.h renamed + to config/vms-conf.h. + +Fixed missing/tzset.c + +Removed use of gcvt() and GCVT_MISSING -- turns out it was no faster than + sprintf("%g") and caused all sorts of portability headaches. + +Tuned get_field() -- it was unnecessarily parsing the whole record on reference + to $0. + +Tuned interpret() a bit in the rule_node loop. + +In r_force_number(), worked around bug in Uglix strtod() and got rid of + ugly do{}while(0) at Michal's urging. + +Replaced do_deref() and deref with unref(node) -- much cleaner and a bit faster. + +Got rid of assign_number() -- contrary to comment, it was no faster than + just making a new node and freeing the old one. + +Replaced make_number() and tmp_number() with macros that call mk_number(). + +Changed freenode() and newnode() into macros -- the latter is getnode() + which calls more_nodes() as necessary. + +Changes from 2.12.26 to 2.12.27 +------------------------------- + +Completion of Cray 2 port (includes a kludge for floor() and ceil() + that may go or be changed -- I think that it may just be working around + a bug in chem that is being tweaked on the Cray). + +More VMS updates. + +Moved kludge over yacc's insertion of malloc and realloc declarations + from protos.h to the Makefile. + +Added a lisp interpreter in awk to the test suite. (Invoked under + bigtest.) + +Cleanup in r_force_number() -- I had never gotten around to a thorough + profile of the cache code and it turns out to be not worth it. + +Performance boost -- do lazy force_number()'ing for fields etc. i.e. + flag them (MAYBE_NUM) and call force_number only as necessary. + +Changes from 2.12.25 to 2.12.26 +------------------------------- + +Rework of regexp stuff so that dynamic regexps have reasonable + performance -- string used for compiled regexp is stored and + compared to new string -- if same, no recompilation is necessary. + Also, very dynamic regexps cause dfa-based searching to be turned + off. + +Code in dev_open() is back to returning fileno(std*) rather than + dup()ing it. This will be documented. Sorry for the run-around + on this. + +Minor atari updates. + +Minor vms update. + +Missing file from MSDOS port. + +Added warning (under lint) if third arg. of [g]sub is a constant and + handle it properly in the code (i.e. return how many matches). + +Changes from 2.12.24 to 2.12.25 +------------------------------- + +MSDOS port. + +Non-consequential changes to regexp variables in preparation for + a more serious change to fix a serious performance problem. + +Changes from 2.12.23 to 2.12.24 +------------------------------- + +Fixed bug in output flushing introduced a few patches back. This caused + serious performance losses. + +Changes from 2.12.22 to 2.12.23 +------------------------------- + +Accidentally left config/cray2-60 out of last patch. + +Added some missing dependencies to Makefile. + +Cleaned up mkconf a bit; made yacc the default parser (no alloca needed, + right?); added rs6000 hook for signed characters. + +Made regex.c with NO_ALLOCA undefined work. + +Fixed bug in dfa.c for systems where free(NULL) bombs. + +Deleted a few cant_happen()'s that *really* can't hapen. + +Changes from 2.12.21 to 2.12.22 +------------------------------- + +Added to config stuff the ability to choose YACC rather than bison. + +Fixed CHAR_UNSIGNED in config.h-dist. + +Second arg. of strtod() is char ** rather than const char **. + +stackb is now initially malloc()'ed since it may be realloc()'ed. + +VMS updates. + +Added SIZE_T_MISSING to config stuff and a default typedef to awk.h. + (Maybe it is not needed on any current systems??) + +re_compile_pattern()'s size is now size_t unconditionally. + +Changes from 2.12.20 to 2.12.21 +------------------------------- + +Corrected missing/gcvt.c. + +Got rid of use of dup2() and thus DUP_MISSING. + +Updated config/sgi33. + +Turned on (and fixed) in cmp_nodes() the behaviour that I *hope* will be in + POSIX 1003.2 for relational comparisons. + +Small updates to test suite. + +Changes from 2.12.19 to 2.12.20 +------------------------------- + +Sloppy, sloppy, sloppy!! I didn't even try to compile the last two + patches. This one fixes goofs in regex.c. + +Changes from 2.12.18 to 2.12.19 +------------------------------- + +Cleanup of last patch. + +Changes from 2.12.17 to 2.12.18 +------------------------------- + +Makefile renamed to Makefile-dist. + +Added alloca() configuration to mkconf. (A bit kludgey.) Just + add a single line containing ALLOCA_PW, ALLOCA_S or ALLOCA_C + to the appropriate config file to have Makefile-dist edited + accordingly. + +Reorganized output flushing to correspond with new semantics of + devopen() on "/dev/std*" etc. + +Fixed rest of last goof!! + +Save and restore errno in do_pathopen(). + +Miscellaneous atari updates. + +Get rid of the trailing comma in the NODETYPE definition (Cray + compiler won't take it). + +Try to make the use of `const' consistent since Cray compiler is + fussy about that. See the changes to `basename' and `myname'. + +It turns out that, according to section 3.8.3 (Macro Replacement) + of the ANSI Standard: ``If there are sequences of preprocessing + tokens within the list of arguments that would otherwise act as + preprocessing directives, the behavior is undefined.'' That means + that you cannot count on the behavior of the declaration of + re_compile_pattern in awk.h, and indeed the Cray compiler chokes on it. + +Replaced alloca with malloc/realloc/free in regex.c. It was much simpler + than expected. (Inside NO_ALLOCA for now -- by default no alloca.) + +Added a configuration file, config/cray60, for Unicos-6.0. + +Changes from 2.12.16 to 2.12.17 +------------------------------- + +Ooops. Goofed signal use in last patch. + +Changes from 2.12.15 to 2.12.16 +------------------------------- + +RENAMED *_dir to just * (e.g. missing_dir). + +Numerous VMS changes. + +Proper inclusion of atari and vms files. + +Added experimental (ifdef'd out) RELAXED_CONTINUATION and DEFAULT_FILETYPE + -- please comment on these! + +Moved pathopen() to io.c (sigh). + +Put local directory ahead in default AWKPATH. + +Added facility in mkconf to echo comments on stdout: lines beginning + with "#echo " will have the remainder of the line echoed when mkconf is run. + Any lines starting with "#" will otherwise be treated as comments. The + intent is to be able to say: + "#echo Make sure you uncomment alloca.c in the Makefile" + or the like. + +Prototype fix for V.4 + +Fixed version_string to not print leading @(#). + +Fixed FIELDWIDTHS to work with strict (turned out to be easy). + +Fixed conf for V.2. + +Changed semantics of /dev/fd/n to be like on real /dev/fd. + +Several configuration and updates in the makefile. + +Updated manpage. + +Include tzset.c and system.c from missing_dir that were accidently left out of + the last patch. + +Fixed bug in cmdline variable assignment -- arg was getting freed(!) in + call to variable. + +Backed out of parse-time constant folding for now, until I can figure out + how to do it right. + +Fixed devopen() so that getline <"-" works. + +Changes from 2.12.14 to 2.12.15 +------------------------------- + +Changed config/* to a condensed form that can be used with mkconf to generate + a config.h from config.h-dist -- much easier to maintain. Please check + carefully against what you had before for a particular system and report + any problems. vms.h remains separate since the stuff at the bottom + didn't quite fit the mkconf model -- hopefully cleared up later. + +Fixed bug in grammar -- didn't allow function definition to be separated from + other rules by a semi-colon. + +VMS fix to #includes in missing.c -- should we just be including awk.h? + +Updated README for texinfo.tex version. + +Updating of copyright in all .[chy] files. + +Added but commented out Michal's fix to strftime. + +Added tzset() emulation based on Rick Adams' code. Added TZSET_MISSING to + config.h-dist. + +Added strftime.3 man page for missing_dir + +More posix: func, **, **= don't work in -W posix + +More lint: ^, ^= not in old awk + +gawk.1: removed ref to -DNO_DEV_FD, other minor updating. + +Style change: pushbak becomes pushback() in yylex(). + +Changes from 2.12.13 to 2.12.14 +------------------------------- + +Better (?) organization of awk.h -- attempt to keep all system dependencies + near the top and move some of the non-general things out of the config.h + files. + +Change to handling of SYSTEM_MISSING. + +Small change to ultrix config. + +Do "/dev/fd/*" etc. checking at runtime. + +First pass at VMS port. + +Improvements to error handling (when lexeme spans buffers). + +Fixed backslash handling -- why didn't I notice this sooner? + +Added programs from book to test suite and new target "bigtest" to Makefile. + +Changes from 2.12.12 to 2.12.13 +------------------------------- + +Recognize OFS and ORS specially so that OFS = 9 works without efficiency hit. + Took advantage of opportunity to tune do_print*() for about 10% win on a + print with 5 args (i.e. small but significant). + +Somewhat pervasive changes to reconcile CONVFMT vs. OFMT. + +Better initialization of builtin vars. + +Make config/* consistent wrt STRTOL_MISSING. + +Small portability improvement to alloca.s + +Improvements to lint code in awk.y + +Replaced strtol() with a better one by Chris Torek. + +Changes from 2.12.11 to 2.12.12 +------------------------------- + +Added PORTS file to record successful ports. + +Added #define const to nothing if not STDC and added const to strtod() header. + +Added * to printf capabilities and partially implemented ' ' and '+' (has an + effect for %d only, silently ignored for other formats). I'm afraid that's + as far as I want to go before I look at a complete replacement for + do_sprintf(). + +Added warning for /regexp/ on LHS of MATCHOP. + +Changes from 2.12.10 to 2.12.11 +------------------------------- + +Small Makefile improvements. + +Some remaining nits from the NeXT port. + +Got rid of bcopy() define in awk.h -- not needed anymore (??) + +Changed private in builtin.c -- it is special on Sequent. + +Added subset implementation of strtol() and STRTOL_MISSING. + +A little bit of cleanup in debug.c, dfa.c. + +Changes from 2.12.9 to 2.12.10 +------------------------------ + +Redid compatability checking and checking for # of args. + +Removed all references to variables[] from outside awk.y, in preparation + for a more abstract interface to the symbol table. + +Got rid of a remaining use of bcopy() in regex.c. + +Changes from 2.12.8 to 2.12.9 +----------------------------- + +Portability improvements for atari, next and decstation. + +Bug fix in substr() -- wasn't handling 3rd arg. of -1 properly. + +Manpage updates. + +Moved support from src release to doc release. + +Updated FUTURES file. + +Added some "lint" warnings. + +Changes from 2.12.7 to 2.12.8 +----------------------------- + +Changed time() to systime(). + +Changed warning() in snode() to fatal(). + +strftime() now defaults second arg. to current time. + +Changes from 2.12.6 to 2.12.7 +----------------------------- + +Fixed bug in sub_common() involving inadequate allocation of a buffer. + +Added some missing files to the Makefile. + +Changes from 2.12.5 to 2.12.6 +----------------------------- + +Fixed bug wherein non-redirected getline could call iop_close() just + prior to a call from do_input(). + +Fixed bug in handling of /dev/stdout and /dev/stderr. + +Changes from 2.12.4 to 2.12.5 +----------------------------- + +Updated README and support directory. + +Changes from 2.12.3 to 2.12.4 +----------------------------- + +Updated CHANGES and TODO (should have been done in previous 2 patches). + +Changes from 2.12.2 to 2.12.3 +----------------------------- + +Brought regex.c and alloca.s into line with current FSF versions. + +Changes from 2.12.1 to 2.12.2 +----------------------------- + +Portability improvements; mostly moving system prototypes out of awk.h + +Introduction of strftime. + +Use of CONVFMT. + +Changes from 2.12 to 2.12.1 +----------------------------- + +Consolidated treatment of command-line assignments (thus correcting the +-v treatment). + +Rationalized builtin-variable handling into a table-driven process, thus +simplifying variable() and eliminating spc_var(). + +Fixed bug in handling of command-line source that ended in a newline. + +Simplified install() and lookup(). + +Did away with double-mallocing of identifiers and now free second and later +instances of a name, after the first gets installed into the symbol table. + +Treat IGNORECASE specially, simplifying a lot of code, and allowing +checking against strict conformance only on setting it, rather than on each +pattern match. + +Fixed regexp matching when IGNORECASE is non-zero (broken when dfa.c was +added). + +Fixed bug where $0 was not being marked as valid, even after it was rebuilt. +This caused mangling of $0. + + +Changes from 2.11.1 to 2.12 +----------------------------- + +Makefile: + +Portability improvements in Makefile. +Move configuration stuff into config.h + +FSF files: + +Synchronized alloca.[cs] and regex.[ch] with FSF. + +array.c: + +Rationalized hash routines into one with a different algorithm. +delete() now works if the array is a local variable. +Changed interface of assoc_next() and avoided dereferencing past the end of the + array. + +awk.h: + +Merged non-prototype and prototype declarations in awk.h. +Expanded tree_eval #define to short-circuit more calls of r_tree_eval(). + +awk.y: + +Delinted some of the code in the grammar. +Fixed and improved some of the error message printing. +Changed to accomodate unlimited length source lines. +Line continuation now works as advertised. +Source lines can be arbitrarily long. +Refined grammar hacks so that /= assignment works. Regular expressions + starting with /= are recognized at the beginning of a line, after && or || + and after ~ or !~. More contexts can be added if necessary. +Fixed IGNORECASE (multiple scans for backslash). +Condensed expression_lists in array references. +Detect and warn for correct # args in builtin functions -- call most of them + with a fixed number (i.e. fill in defaults at parse-time rather than at + run-time). +Load ENVIRON only if it is referenced (detected at parse-time). +Treat NF, FS, RS, NR, FNR specially at parse time, to improve run time. +Fold constant expressions at parse time. +Do make_regexp() on third arg. of split() at parse tiem if it is a constant. + +builtin.c: + +srand() returns 0 the first time called. +Replaced alloca() with malloc() in do_sprintf(). +Fixed setting of RSTART and RLENGTH in do_match(). +Got rid of get_{one,two,three} and allowance for variable # of args. at + run-time -- this is now done at parse-time. +Fixed latent bug in [g]sub whereby changes to $0 would never get made. +Rewrote much of sub_common() for simplicity and performance. +Added ctime() and time() builtin functions (unless -DSTRICT). ctime() returns + a time string like the C function, given the number of seconds since the epoch + and time() returns the current time in seconds. +do_sprintf() now checks for mismatch between format string and number of + arguments supplied. + +dfa.c + +This is borrowed (almost unmodified) from GNU grep to provide faster searches. + +eval.c + +Node_var, Node_var_array and Node_param_list handled from macro rather + than in r_tree_eval(). +Changed cmp_nodes() to not do a force_number() -- this, combined with a + force_number() on ARGV[] and ENVIRON[] brings it into line with other awks +Greatly simplified cmp_nodes(). +Separated out Node_NF, Node_FS, Node_RS, Node_NR and Node_FNR in get_lhs(). +All adjacent string concatenations now done at once. + +field.c + +Added support for FIELDWIDTHS. +Fixed bug in get_field() whereby changes to a field were not always + properly reflected in $0. +Reordered tests in parse_field() so that reference off the end of the buffer + doesn't happen. +set_FS() now sets *parse_field i.e. routine to call depending on type of FS. +It also does make_regexp() for FS if needed. get_field() passes FS_regexp + to re_parse_field(), as does do_split(). +Changes to set_field() and set_record() to avoid malloc'ing and free'ing the + field nodes repeatedly. The fields now just point into $0 unless they are + assigned to another variable or changed. force_number() on the field is + *only* done when the field is needed. + +gawk.1 + +Fixed troff formatting problem on .TP lines. + +io.c + +Moved some code out into iop.c. +Output from pipes and system() calls is properly synchronized. +Status from pipe close properly returned. +Bug in getline with no redirect fixed. + +iop.c + +This file contains a totally revamped get_a_record and associated code. + +main.c + +Command line programs no longer use a temporary file. +Therefore, tmpnam() no longer required. +Deprecated -a and -e options -- they will go away in the next release, + but for now they cause a warning. +Moved -C, -V, -c options to -W ala posix. +Added -W posix option: throw out \x +Added -W lint option. + + +node.c + +force_number() now allows pure numerics to have leading whitespace. +Added make_string facility to optimize case of adding an already malloc'd + string. +Cleaned up and simplified do_deref(). +Fixed bug in handling of stref==255 in do_deref(). + +re.c + +contains the interface to regexp code + +Changes from 2.11.1 to FSF version of same +------------------------------------------ +Thu Jan 4 14:19:30 1990 Jim Kingdon (kingdon at albert) + + * Makefile (YACC): Add -y to bison part. + + * missing.c: Add #include <stdio.h>. + +Sun Dec 24 16:16:05 1989 David J. MacKenzie (djm at hobbes.ai.mit.edu) + + * Makefile: Add (commented out) default defines for Sony News. + + * awk.h: Move declaration of vprintf so it will compile when + -DVPRINTF_MISSING is defined. + +Mon Nov 13 18:54:08 1989 Robert J. Chassell (bob at apple-gunkies.ai.mit.edu) + + * gawk.texinfo: changed @-commands that are not part of the + standard, currently released texinfmt.el to those that are. + Otherwise, only people with the as-yet unreleased makeinfo.c can + format this file. + +Changes from 2.11beta to 2.11.1 (production) +-------------------------------------------- + +Went from "beta" to production status!!! + +Now flushes stdout before closing pipes or redirected files to +synchronize output. + +MS-DOS changes added in. + +Signal handler return type parameterized in Makefile and awk.h and +some lint removed. debug.c cleaned up. + +Fixed FS splitting to never match null strings, per book. + +Correction to the manual's description of FS. + +Some compilers break on char *foo = "string" + 4 so fixed version.sh and +main.c. + +Changes from 2.10beta to 2.11beta +--------------------------------- + +This release fixes all reported bugs that we could reproduce. Probably +some of the changes are not documented here. + +The next release will probably not be a beta release! + +The most important change is the addition of the -nostalgia option. :-) + +The documentation has been improved and brought up-to-date. + +There has been a lot of general cleaning up of the code that is not otherwise +documented here. There has been a movement toward using standard-conforming +library routines and providing them (in missing.d) for systems lacking them. +Improved (hopefully) configuration through Makfile modifications and missing.c. +In particular, straightened out confusion over vprintf #defines, declarations +etc. + +Deleted RCS log comments from source, to reduce source size by about one third. +Most of them were horribly out-of-date, anyway. + +Renamed source files to reflect (for the most part) their contents. + +More and improved error messages. Cleanup and fixes to yyerror(). +String constants are not altered in input buffer, so error messages come out +better. Fixed usage message. Make use of ANSI C strerror() function +(provided). + +Plugged many more memory leaks. The memory consumption is now quite +reasonable over a wide range of programs. + +Uses volatile declaration if STDC > 0 to avoid problems due to longjmp. + +New -a and -e options to use awk or egrep style regexps, respectively, +since POSIX says awk should use egrep regexps. Default is -a. + +Added -v option for setting variables before the first file is encountered. +Version information now uses -V and copyleft uses -C. + +Added a patchlevel.h file and its use for -V and -C. + +Append_right() optimized for major improvement to programs with a *lot* +of statements. + +Operator precedence has been corrected to match draft Posix. + +Tightened up grammar for builtin functions so that only length +may be called without arguments or parentheses. + +/regex/ is now a normal expression that can appear in any expression +context. + +Allow /= to begin a regexp. Allow ..[../..].. in a regexp. + +Allow empty compound statements ({}). + +Made return and next illegal outside a function and in BEGIN/END respectively. + +Division by zero is now illegal and causes a fatal error. + +Fixed exponentiation so that x ^ 0 and x ^= 0 both return 1. + +Fixed do_sqrt, do_log, and do_exp to do argument/return checking and +print an error message, per the manual. + +Fixed main to catch SIGSEGV to get source and data file line numbers. + +Fixed yyerror to print the ^ at the beginning of the bad token, not the end. + +Fix to substr() builtin: it was failing if the arguments +weren't already strings. + +Added new node value flag NUMERIC to indicate that a variable is +purely a number as opposed to type NUM which indicates that +the node's numeric value is valid. This is set in make_number(), +tmp_number and r_force_number() when appropriate and used in +cmp_nodes(). This fixed a bug in comparison of variables that had +numeric prefixes. The new code uses strtod() and eliminates is_a_number(). +A simple strtod() is provided for systems lacking one. It does no +overflow checking, so could be improved. + +Simplification and efficiency improvement in force_string. + +Added performance tweak in r_force_number(). + +Fixed a bug with nested loops and break/continue in functions. + +Fixed inconsistency in handling of empty fields when $0 has to be rebuilt. +Happens to simplify rebuild_record(). + +Cleaned up the code associated with opening a pipe for reading. Gawk +now has its own popen routine (gawk_popen) that allocates an IOBUF +and keeps track of the pid of the child process. gawk_pclose +marks the appropriate child as defunct in the right struct redirect. + +Cleaned up and fixed close_redir(). + +Fixed an obscure bug to do with redirection. Intermingled ">" and ">>" +redirects did not output in a predictable order. + +Improved handling of output buffering: now all print[f]s redirected to a tty +or pipe are flushed immediately and non-redirected output to a tty is flushed +before the next input record is read. + +Fixed a bug in get_a_record() where bcopy() could have copied over +a random pointer. + +Fixed a bug when RS="" and records separated by multiple blank lines. + +Got rid of SLOWIO code which was out-of-date anyway. + +Fix in get_field() for case where $0 is changed and then $(n) are +changed and then $0 is used. + +Fixed infinite loop on failure to open file for reading from getline. +Now handles redirect file open failures properly. + +Filenames such as /dev/stdin now allowed on the command line as well as +in redirects. + +Fixed so that gawk '$1' where $1 is a zero tests false. + +Fixed parsing so that `RLENGTH -1' parses the same as `RLENGTH - 1', +for example. + +The return from a user-defined function now defaults to the Null node. +This fixes a core-dump-causing bug when the return value of a function +is used and that function returns no value. + +Now catches floating point exceptions to avoid core dumps. + +Bug fix for deleting elements of an array -- under some conditions, it was +deleting more than one element at a time. + +Fix in AWKPATH code for running off the end of the string. + +Fixed handling of precision in *printf calls. %0.2d now works properly, +as does %c. [s]printf now recognizes %i and %X. + +Fixed a bug in printing of very large (>240) strings. + +Cleaned up erroneous behaviour for RS == "". + +Added IGNORECASE support to index(). + +Simplified and fixed newnode/freenode. + +Fixed reference to $(anything) in a BEGIN block. + +Eliminated use of USG rand48(). + +Bug fix in force_string for machines with 16-bit ints. + +Replaced use of mktemp() with tmpnam() and provided a partial implementation of +the latter for systems that don't have it. + +Added a portability check for includes in io.c. + +Minor portability fix in alloc.c plus addition of xmalloc(). + +Portability fix: on UMAX4.2, st_blksize is zero for a pipe, thus breaking +iop_alloc() -- fixed. + +Workaround for compiler bug on Sun386i in do_sprintf. + +More and improved prototypes in awk.h. + +Consolidated C escape parsing code into one place. + +strict flag is now turned on only when invoked with compatability option. +It now applies to fewer things. + +Changed cast of f._ptr in vprintf.c from (unsigned char *) to (char *). +Hopefully this is right for the systems that use this code (I don't). + +Support for pipes under MSDOS added. |