From f4092abdf94af6a99aff944d6264bc1284e8bdd4 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Mon, 10 Oct 2011 17:43:39 +0200 Subject: Imported nx-X11-3.1.0-1.tar.gz Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository --- nx-X11/extras/regex/WHATSNEW | 105 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 nx-X11/extras/regex/WHATSNEW (limited to 'nx-X11/extras/regex/WHATSNEW') diff --git a/nx-X11/extras/regex/WHATSNEW b/nx-X11/extras/regex/WHATSNEW new file mode 100644 index 000000000..d84f9e34d --- /dev/null +++ b/nx-X11/extras/regex/WHATSNEW @@ -0,0 +1,105 @@ +New in alpha3.7: A bit of cleanup aimed at maximizing portability, +possibly at slight cost in efficiency. "ul" suffixes and "unsigned long" +no longer appear, in particular. + +New in alpha3.6: A couple more portability glitches fixed. + +New in alpha3.5: Active development of this code has been stopped -- +I'm working on a complete reimplementation -- but folks have found some +minor portability glitches and the like, hence this release to fix them. +One penalty: slightly reduced compatibility with old compilers, because +the ANSI C `unsigned long' type and `ul' constant suffix are used in a +few places (I could avoid this but it would be considerably more work). + +New in alpha3.4: The complex bug alluded to below has been fixed (in a +slightly kludgey temporary way that may hurt efficiency a bit; this is +another "get it out the door for 4.4" release). The tests at the end of +the tests file have accordingly been uncommented. The primary sign of +the bug was that something like a?b matching ab matched b rather than ab. +(The bug was essentially specific to this exact situation, else it would +have shown up earlier.) + +New in alpha3.3: The definition of word boundaries has been altered +slightly, to more closely match the usual programming notion that "_" +is an alphabetic. Stuff used for pre-ANSI systems is now in a subdir, +and the makefile no longer alludes to it in mysterious ways. The +makefile has generally been cleaned up some. Fixes have been made +(again!) so that the regression test will run without -DREDEBUG, at +the cost of weaker checking. A workaround for a bug in some folks' + has been added. And some more things have been added to +tests, including a couple right at the end which are commented out +because the code currently flunks them (complex bug; fix coming). +Plus the usual minor cleanup. + +New in alpha3.2: Assorted bits of cleanup and portability improvement +(the development base is now a BSDI system using GCC instead of an ancient +Sun system, and the newer compiler exposed some glitches). Fix for a +serious bug that affected REs using many [] (including REG_ICASE REs +because of the way they are implemented), *sometimes*, depending on +memory-allocation patterns. The header-file prototypes no longer name +the parameters, avoiding possible name conflicts. The possibility that +some clot has defined CHAR_MIN as (say) `-128' instead of `(-128)' is +now handled gracefully. "uchar" is no longer used as an internal type +name (too many people have the same idea). Still the same old lousy +performance, alas. + +New in alpha3.1: Basically nothing, this release is just a bookkeeping +convenience. Stay tuned. + +New in alpha3.0: Performance is no better, alas, but some fixes have been +made and some functionality has been added. (This is basically the "get +it out the door in time for 4.4" release.) One bug fix: regfree() didn't +free the main internal structure (how embarrassing). It is now possible +to put NULs in either the RE or the target string, using (resp.) a new +REG_PEND flag and the old REG_STARTEND flag. The REG_NOSPEC flag to +regcomp() makes all characters ordinary, so you can match a literal +string easily (this will become more useful when performance improves!). +There are now primitives to match beginnings and ends of words, although +the syntax is disgusting and so is the implementation. The REG_ATOI +debugging interface has changed a bit. And there has been considerable +internal cleanup of various kinds. + +New in alpha2.3: Split change list out of README, and moved flags notes +into Makefile. Macro-ized the name of regex(7) in regex(3), since it has +to change for 4.4BSD. Cleanup work in engine.c, and some new regression +tests to catch tricky cases thereof. + +New in alpha2.2: Out-of-date manpages updated. Regerror() acquires two +small extensions -- REG_ITOA and REG_ATOI -- which avoid debugging kludges +in my own test program and might be useful to others for similar purposes. +The regression test will now compile (and run) without REDEBUG. The +BRE \$ bug is fixed. Most uses of "uchar" are gone; it's all chars now. +Char/uchar parameters are now written int/unsigned, to avoid possible +portability problems with unpromoted parameters. Some unsigned casts have +been introduced to minimize portability problems with shifting into sign +bits. + +New in alpha2.1: Lots of little stuff, cleanup and fixes. The one big +thing is that regex.h is now generated, using mkh, rather than being +supplied in the distribution; due to circularities in dependencies, +you have to build regex.h explicitly by "make h". The two known bugs +have been fixed (and the regression test now checks for them), as has a +problem with assertions not being suppressed in the absence of REDEBUG. +No performance work yet. + +New in alpha2: Backslash-anything is an ordinary character, not an +error (except, of course, for the handful of backslashed metacharacters +in BREs), which should reduce script breakage. The regression test +checks *where* null strings are supposed to match, and has generally +been tightened up somewhat. Small bug fixes in parameter passing (not +harmful, but technically errors) and some other areas. Debugging +invoked by defining REDEBUG rather than not defining NDEBUG. + +New in alpha+3: full prototyping for internal routines, using a little +helper program, mkh, which extracts prototypes given in stylized comments. +More minor cleanup. Buglet fix: it's CHAR_BIT, not CHAR_BITS. Simple +pre-screening of input when a literal string is known to be part of the +RE; this does wonders for performance. + +New in alpha+2: minor bits of cleanup. Notably, the number "32" for the +word width isn't hardwired into regexec.c any more, the public header +file prototypes the functions if __STDC__ is defined, and some small typos +in the manpages have been fixed. + +New in alpha+1: improvements to the manual pages, and an important +extension, the REG_STARTEND option to regexec(). -- cgit v1.2.3