re2_xs.cc | 8 5 + 3 - 0 !
1 file changed, 5 insertions(+), 3 deletions(-)

 force treat scanned string as utf-8 when compiled regex is utf8
 re::engine::RE2 is documented (in BUGS section of README)
 to not handle UTF-8 correctly.
 .
 Without this patch,
 scanning Latin1 string with UTF-8 regex reports wrong positions
 or potentially crashes,
 and misses e.g. "" (which Perl re engine correctly matches).
 .
 With this patch,
 scanning UTF-8 string with UTF-8 regex should behave correctly,
 and still misses e.g. "".
 .
 Scanning should be safer and more correct for UTF-8 strings,
 with only known side-effect of being slower for non-UTF-8 strings
 due to always upgrading string to UTF-8.
 For faster scanning of known ASCII string, use an ASCII regex.

Makefile.PL | 116 2 + 114 - 0 !
t/00.re2-tests.t | 2 2 + 0 - 0 !
2 files changed, 4 insertions(+), 114 deletions(-)

 use system shared libre2