3 * regex.c does not #define bcmp/bcopy/bzero if they already are.
5 * regex.h does not redefine `const' if it is already defined, even if
6 __STDC__ is not defined.
8 * RE_SYNTAX_ED added (same as POSIX BRE's).
10 * The following bugs have been fixed, among others:
11 * The pattern \w+ doesn't infinite loop.
12 * The pattern ".+\n" is compiled correctly.
13 * Expressions with more than MAX_REGNUM groups are compiled correctly.
15 * Patterns that end in a repetition operator (e.g., `*') match
16 slightly faster if no looping is actually necessary.
18 Version 0.11 (17 Sep 92)
20 * Back-references to nonexistent subexpressions, as in the r.e. `abc\1',
21 are always invalid. Previously, they could match the literal digit,
22 e.g., the stated r.e. might have matched `abc1'.
24 * Empty subexpressions are always valid (POSIX leaves this undefined).
26 * Simplified rules for ^ and $ being anchors.
28 * One minor speedup (rewriting the C procedure `pop_failure_point' as a
31 * Bug fixes involving:
32 - Declarations in regex.h and non-ANSI compilers.
33 - Bracket expressions with characters between 0x80-0xff.
34 - Memory leak in re_match_2 on systems requiring `alloca (0)' to
35 free alloca'd storage.
37 * Test and documentation files moved into subdirectories.
39 Version 0.10 (9 Sep 92)
41 * `obscure_syntax' is now called `re_default_syntax'.
43 * `re_comp's return type is no longer `const', for compatibility with BSD.
45 * POSIX syntaxes now include as much functionality as possible
46 (consistent with the standard).
48 * Compilation conditionals normalized to what the rest of GNU is
49 migrating towards these days.
51 * Bug fixes involving:
52 - Ranges with characters between 0x80 and 0xff, e.g., [\001-\377].
53 - `re_compile_fastmap' and the sequence `.*\n'.
54 - Intervals with exact counts, e.g., a{5}.
56 * Changed distribution to use a standard Makefile, install the info
57 files, use a configure script, etc.
61 * The longest match was not always chosen: `a*|ab' didn't match `aab'.