diff options
| author | Karl Williamson <khw@cpan.org> | 2016-01-18 14:25:02 -0700 |
|---|---|---|
| committer | Karl Williamson <khw@cpan.org> | 2016-01-19 15:08:59 -0700 |
| commit | 6b659339f976d014a1a53731d86cedd01f5921ec (patch) | |
| tree | 852b02830e8b19bf700af95791214485d1f4e2e8 /regcharclass.h | |
| parent | ca8226cfa2cc0ddcc50f60505c42078df8e3b766 (diff) | |
| download | perl-6b659339f976d014a1a53731d86cedd01f5921ec.tar.gz | |
Add qr/\b{lb}/
This adds the final Unicode boundary type previously missing from core
Perl: the LineBreak one. This feature is already available in the
Unicode::LineBreak module, but I've been told that there are portability
and some other issues with that module. What's added here is a
light-weight version that is lacking the customizable features of the
module.
This implements the default Line Breaking algorithm, but with the
customizations that Unicode is expecting everybody to add, as their
test file tests for them. In other words, this passes Unicode's fairly
extensive furnished tests, but wouldn't if it didn't include certain
customizations specified by Unicode beyond the basic algorithm.
The implementation uses a look-up table of the characters surrounding a
boundary to see if it is a suitable place to break a line. In a few
cases, context needs to be taken into account, so there is code in
addition to the lookup table to handle those.
This should meet the needs for line breaking of many applications,
without having to load the module.
The algorithm is somewhat independent of the Unicode version, just like
the other boundary types. Only if new rules are added, or existing ones
modified is there need to go in and change this code. Otherwise,
running regen/mk_invlists.pl should be sufficient when a new Unicode
release is done to keep it up-to-date, again like the other Unicode
boundary types.
Diffstat (limited to 'regcharclass.h')
| -rw-r--r-- | regcharclass.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/regcharclass.h b/regcharclass.h index 1c260fc07e..e61a6542e9 100644 --- a/regcharclass.h +++ b/regcharclass.h @@ -1879,6 +1879,7 @@ * 38b17e1118206489a7e0ab5d29d7932212d38838df7d3ec025ecb58e8798ec20 lib/unicore/UnicodeData.txt * 0cedd6e0f5cadf57ce9cfc96beccfd083b0faa0809a631a777cd25f0316bfabb lib/unicore/auxiliary/GCBTest.txt * 230005412f9a47128e37bc52330766aaa0b5522a53737a89cff66e891e14527a lib/unicore/auxiliary/GraphemeBreakProperty.txt + * 149b14ab93b06c887a958fb16d0ad01193063ef69cc14f10338ae4d0accd6c28 lib/unicore/auxiliary/LBTest.txt * 41bf82452d71ce15eda8c9bb1bb0c20b72205acaaf503e3cb84734ed8e85d33a lib/unicore/auxiliary/SBTest.txt * d3b45cdb0a73eeb9d25158336583dfc1e6f64da59537acb0008988b40e6b3b63 lib/unicore/auxiliary/SentenceBreakProperty.txt * a661f42a54f7cc4dded72a61c508be2b482f912d4b6cf140335010f0c684dbb9 lib/unicore/auxiliary/WBTest.txt @@ -1894,7 +1895,7 @@ * 1a0687fb9c6c4567e853913549df0944fe40821279a3e9cdaa6ab8679bc286fd lib/unicore/extracted/DLineBreak.txt * 40bcfed3ca727c19e1331f6c33806231d5f7eeeabd2e6a9e06a3740c85d0c250 lib/unicore/extracted/DNumType.txt * a18d502bad39d527ac5586d7bc93e29f565859e3bcc24ada627eff606d6f5fed lib/unicore/extracted/DNumValues.txt - * 3589fcc6852823b96c60209bc615ad8cb96455d5047194ec3545e30ecc9d464b lib/unicore/mktables + * 648ee6791150b7163b4a7b61db070d5d19e9d4461a3ba20b7de536d820335e3e lib/unicore/mktables * 462c9aaa608fb2014cd9649af1c5c009485c60b9c8b15b89401fdc10cf6161c6 lib/unicore/version * 913d2f93f3cb6cdf1664db888bf840bc4eb074eef824e082fceda24a9445e60c regen/charset_translations.pl * d9c04ac46bdd81bb3e26519f2b8eb6242cb12337205add3f7cf092b0c58dccc4 regen/regcharclass.pl |