| 1 | New in alpha3.8: Bug fix for signed/unsigned mixup, found and fixed |
| 2 | by the FreeBSD folks. |
| 3 | |
| 4 | New in alpha3.7: A bit of cleanup aimed at maximizing portability, |
| 5 | possibly at slight cost in efficiency. "ul" suffixes and "unsigned long" |
| 6 | no longer appear, in particular. |
| 7 | |
| 8 | New in alpha3.6: A couple more portability glitches fixed. |
| 9 | |
| 10 | New in alpha3.5: Active development of this code has been stopped -- |
| 11 | I'm working on a complete reimplementation -- but folks have found some |
| 12 | minor portability glitches and the like, hence this release to fix them. |
| 13 | One penalty: slightly reduced compatibility with old compilers, because |
| 14 | the ANSI C `unsigned long' type and `ul' constant suffix are used in a |
| 15 | few places (I could avoid this but it would be considerably more work). |
| 16 | |
| 17 | New in alpha3.4: The complex bug alluded to below has been fixed (in a |
| 18 | slightly kludgey temporary way that may hurt efficiency a bit; this is |
| 19 | another "get it out the door for 4.4" release). The tests at the end of |
| 20 | the tests file have accordingly been uncommented. The primary sign of |
| 21 | the bug was that something like a?b matching ab matched b rather than ab. |
| 22 | (The bug was essentially specific to this exact situation, else it would |
| 23 | have shown up earlier.) |
| 24 | |
| 25 | New in alpha3.3: The definition of word boundaries has been altered |
| 26 | slightly, to more closely match the usual programming notion that "_" |
| 27 | is an alphabetic. Stuff used for pre-ANSI systems is now in a subdir, |
| 28 | and the makefile no longer alludes to it in mysterious ways. The |
| 29 | makefile has generally been cleaned up some. Fixes have been made |
| 30 | (again!) so that the regression test will run without -DREDEBUG, at |
| 31 | the cost of weaker checking. A workaround for a bug in some folks' |
| 32 | <assert.h> has been added. And some more things have been added to |
| 33 | tests, including a couple right at the end which are commented out |
| 34 | because the code currently flunks them (complex bug; fix coming). |
| 35 | Plus the usual minor cleanup. |
| 36 | |
| 37 | New in alpha3.2: Assorted bits of cleanup and portability improvement |
| 38 | (the development base is now a BSDI system using GCC instead of an ancient |
| 39 | Sun system, and the newer compiler exposed some glitches). Fix for a |
| 40 | serious bug that affected REs using many [] (including REG_ICASE REs |
| 41 | because of the way they are implemented), *sometimes*, depending on |
| 42 | memory-allocation patterns. The header-file prototypes no longer name |
| 43 | the parameters, avoiding possible name conflicts. The possibility that |
| 44 | some clot has defined CHAR_MIN as (say) `-128' instead of `(-128)' is |
| 45 | now handled gracefully. "uchar" is no longer used as an internal type |
| 46 | name (too many people have the same idea). Still the same old lousy |
| 47 | performance, alas. |
| 48 | |
| 49 | New in alpha3.1: Basically nothing, this release is just a bookkeeping |
| 50 | convenience. Stay tuned. |
| 51 | |
| 52 | New in alpha3.0: Performance is no better, alas, but some fixes have been |
| 53 | made and some functionality has been added. (This is basically the "get |
| 54 | it out the door in time for 4.4" release.) One bug fix: regfree() didn't |
| 55 | free the main internal structure (how embarrassing). It is now possible |
| 56 | to put NULs in either the RE or the target string, using (resp.) a new |
| 57 | REG_PEND flag and the old REG_STARTEND flag. The REG_NOSPEC flag to |
| 58 | regcomp() makes all characters ordinary, so you can match a literal |
| 59 | string easily (this will become more useful when performance improves!). |
| 60 | There are now primitives to match beginnings and ends of words, although |
| 61 | the syntax is disgusting and so is the implementation. The REG_ATOI |
| 62 | debugging interface has changed a bit. And there has been considerable |
| 63 | internal cleanup of various kinds. |
| 64 | |
| 65 | New in alpha2.3: Split change list out of README, and moved flags notes |
| 66 | into Makefile. Macro-ized the name of regex(7) in regex(3), since it has |
| 67 | to change for 4.4BSD. Cleanup work in engine.c, and some new regression |
| 68 | tests to catch tricky cases thereof. |
| 69 | |
| 70 | New in alpha2.2: Out-of-date manpages updated. Regerror() acquires two |
| 71 | small extensions -- REG_ITOA and REG_ATOI -- which avoid debugging kludges |
| 72 | in my own test program and might be useful to others for similar purposes. |
| 73 | The regression test will now compile (and run) without REDEBUG. The |
| 74 | BRE \$ bug is fixed. Most uses of "uchar" are gone; it's all chars now. |
| 75 | Char/uchar parameters are now written int/unsigned, to avoid possible |
| 76 | portability problems with unpromoted parameters. Some unsigned casts have |
| 77 | been introduced to minimize portability problems with shifting into sign |
| 78 | bits. |
| 79 | |
| 80 | New in alpha2.1: Lots of little stuff, cleanup and fixes. The one big |
| 81 | thing is that regex.h is now generated, using mkh, rather than being |
| 82 | supplied in the distribution; due to circularities in dependencies, |
| 83 | you have to build regex.h explicitly by "make h". The two known bugs |
| 84 | have been fixed (and the regression test now checks for them), as has a |
| 85 | problem with assertions not being suppressed in the absence of REDEBUG. |
| 86 | No performance work yet. |
| 87 | |
| 88 | New in alpha2: Backslash-anything is an ordinary character, not an |
| 89 | error (except, of course, for the handful of backslashed metacharacters |
| 90 | in BREs), which should reduce script breakage. The regression test |
| 91 | checks *where* null strings are supposed to match, and has generally |
| 92 | been tightened up somewhat. Small bug fixes in parameter passing (not |
| 93 | harmful, but technically errors) and some other areas. Debugging |
| 94 | invoked by defining REDEBUG rather than not defining NDEBUG. |
| 95 | |
| 96 | New in alpha+3: full prototyping for internal routines, using a little |
| 97 | helper program, mkh, which extracts prototypes given in stylized comments. |
| 98 | More minor cleanup. Buglet fix: it's CHAR_BIT, not CHAR_BITS. Simple |
| 99 | pre-screening of input when a literal string is known to be part of the |
| 100 | RE; this does wonders for performance. |
| 101 | |
| 102 | New in alpha+2: minor bits of cleanup. Notably, the number "32" for the |
| 103 | word width isn't hardwired into regexec.c any more, the public header |
| 104 | file prototypes the functions if __STDC__ is defined, and some small typos |
| 105 | in the manpages have been fixed. |
| 106 | |
| 107 | New in alpha+1: improvements to the manual pages, and an important |
| 108 | extension, the REG_STARTEND option to regexec(). |