1 # $NetBSD: WHATSNEW,v 1.6 1995/02/27 13:28:25 cgd Exp $ 2 # @(#)WHATSNEW 8.3 (Berkeley) 3/18/94 3 4 New in alpha3.4: The complex bug alluded to below has been fixed (in a 5 slightly kludgey temporary way that may hurt efficiency a bit; this is 6 another "get it out the door for 4.4" release). The tests at the end of 7 the tests file have accordingly been uncommented. The primary sign of 8 the bug was that something like a?b matching ab matched b rather than ab. 9 (The bug was essentially specific to this exact situation, else it would 10 have shown up earlier.) 11 12 New in alpha3.3: The definition of word boundaries has been altered 13 slightly, to more closely match the usual programming notion that "_" 14 is an alphabetic. Stuff used for pre-ANSI systems is now in a subdir, 15 and the makefile no longer alludes to it in mysterious ways. The 16 makefile has generally been cleaned up some. Fixes have been made 17 (again!) so that the regression test will run without -DREDEBUG, at 18 the cost of weaker checking. A workaround for a bug in some folks' 19 <assert.h> has been added. And some more things have been added to 20 tests, including a couple right at the end which are commented out 21 because the code currently flunks them (complex bug; fix coming). 22 Plus the usual minor cleanup. 23 24 New in alpha3.2: Assorted bits of cleanup and portability improvement 25 (the development base is now a BSDI system using GCC instead of an ancient 26 Sun system, and the newer compiler exposed some glitches). Fix for a 27 serious bug that affected REs using many [] (including REG_ICASE REs 28 because of the way they are implemented), *sometimes*, depending on 29 memory-allocation patterns. The header-file prototypes no longer name 30 the parameters, avoiding possible name conflicts. The possibility that 31 some clot has defined CHAR_MIN as (say) `-128' instead of `(-128)' is 32 now handled gracefully. "uchar" is no longer used as an internal type 33 name (too many people have the same idea). Still the same old lousy 34 performance, alas. 35 36 New in alpha3.1: Basically nothing, this release is just a bookkeeping 37 convenience. Stay tuned. 38 39 New in alpha3.0: Performance is no better, alas, but some fixes have been 40 made and some functionality has been added. (This is basically the "get 41 it out the door in time for 4.4" release.) One bug fix: regfree() didn't 42 free the main internal structure (how embarrassing). It is now possible 43 to put NULs in either the RE or the target string, using (resp.) a new 44 REG_PEND flag and the old REG_STARTEND flag. The REG_NOSPEC flag to 45 regcomp() makes all characters ordinary, so you can match a literal 46 string easily (this will become more useful when performance improves!). 47 There are now primitives to match beginnings and ends of words, although 48 the syntax is disgusting and so is the implementation. The REG_ATOI 49 debugging interface has changed a bit. And there has been considerable 50 internal cleanup of various kinds. 51 52 New in alpha2.3: Split change list out of README, and moved flags notes 53 into Makefile. Macro-ized the name of regex(7) in regex(3), since it has 54 to change for 4.4BSD. Cleanup work in engine.c, and some new regression 55 tests to catch tricky cases thereof. 56 57 New in alpha2.2: Out-of-date manpages updated. Regerror() acquires two 58 small extensions -- REG_ITOA and REG_ATOI -- which avoid debugging kludges 59 in my own test program and might be useful to others for similar purposes. 60 The regression test will now compile (and run) without REDEBUG. The 61 BRE \$ bug is fixed. Most uses of "uchar" are gone; it's all chars now. 62 Char/uchar parameters are now written int/unsigned, to avoid possible 63 portability problems with unpromoted parameters. Some unsigned casts have 64 been introduced to minimize portability problems with shifting into sign 65 bits. 66 67 New in alpha2.1: Lots of little stuff, cleanup and fixes. The one big 68 thing is that regex.h is now generated, using mkh, rather than being 69 supplied in the distribution; due to circularities in dependencies, 70 you have to build regex.h explicitly by "make h". The two known bugs 71 have been fixed (and the regression test now checks for them), as has a 72 problem with assertions not being suppressed in the absence of REDEBUG. 73 No performance work yet. 74 75 New in alpha2: Backslash-anything is an ordinary character, not an 76 error (except, of course, for the handful of backslashed metacharacters 77 in BREs), which should reduce script breakage. The regression test 78 checks *where* null strings are supposed to match, and has generally 79 been tightened up somewhat. Small bug fixes in parameter passing (not 80 harmful, but technically errors) and some other areas. Debugging 81 invoked by defining REDEBUG rather than not defining NDEBUG. 82 83 New in alpha+3: full prototyping for internal routines, using a little 84 helper program, mkh, which extracts prototypes given in stylized comments. 85 More minor cleanup. Buglet fix: it's CHAR_BIT, not CHAR_BITS. Simple 86 pre-screening of input when a literal string is known to be part of the 87 RE; this does wonders for performance. 88 89 New in alpha+2: minor bits of cleanup. Notably, the number "32" for the 90 word width isn't hardwired into regexec.c any more, the public header 91 file prototypes the functions if __STDC__ is defined, and some small typos 92 in the manpages have been fixed. 93 94 New in alpha+1: improvements to the manual pages, and an important 95 extension, the REG_STARTEND option to regexec(). 96
Indexes created Fri Nov 07 05:10:14 GMT 2025