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Diffstat (limited to 'contrib/awk/NEWS')
| -rw-r--r-- | contrib/awk/NEWS | 130 |
1 files changed, 129 insertions, 1 deletions
diff --git a/contrib/awk/NEWS b/contrib/awk/NEWS index fc8798f..ab0aa84 100644 --- a/contrib/awk/NEWS +++ b/contrib/awk/NEWS @@ -1,3 +1,131 @@ +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 --------------------------- @@ -11,7 +139,7 @@ Bugs fixed and changes made: 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 (v in a) ...' now works again. +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 |
