95 lines
5.2 KiB
Plaintext
Executable File
95 lines
5.2 KiB
Plaintext
Executable File
# @(#)WHATSNEW 8.3 (Berkeley) 3/18/94
|
|
|
|
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'
|
|
<assert.h> 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().
|