Tre

- New command line options to agrep: --delimiter-after, --color

- Man page for agrep added.

- Some bugs fixed.

- reguexec() added.

- tre_have_backrefs() and tre_have_approx() added.

- New syntax: \Q, \E, \x1B, \x{263a}, (?inr-inr), (?inr-inr:regex).

- New compilation flag REG_RIGHT_ASSOC.

- New execution flags REG_APPROX_MATCHER and REG_BACKTRACKING_MATCHER.

- Included Python language bindings contributed by Nikolai SAOUKH.

- Several bugs and compilation problems fixed.

- Fixed to use iswctype() if found instead of always using
iswalpha() and friends. Now [[:blank:]] should work again on
systems where iswctype() is available.

- Fixed the -h (--no-filename) option of agrep to work again.

- Added the -y option to agrep. It does nothing, and exists only
for compatibility with the non-free version of agrep.

- Fixed bugs: handling null bytes in multibyte mode, exponential
memory usage problem when using lots of macros (e.g. \s or \d) in
a regexp, and bugs in expanding {m,n} repeats (still!).

- wctype() and iswctype() are no longer required for wchar support,
iswalpha() and friends will be used instead if wctype() and
iswctype() are not found.

- Added support for compiling against libutf8.

- Added the tre_config() function to get information about the
optional features compiled in the TRE library. Also added
tre_version().

- Some documentation updates.

- Fixed bugs which occurred sometimes when "{m,n}" repeats were used
in conjunction with "*", "+", or "?".

- Added the -H (--with-filename) option to agrep.

- Fixed bug which occurred whine several "{m,n}" repeats were used
in one regex.

- Fixed several bugs related to REG_NOSUB or NULL pmatch[] arrays
being used for regexec().

- C++ or Fortran compilers no longer checked by the configure
script.

- Some documentation additions.