diff options
author | Karl Williamson <khw@cpan.org> | 2019-05-13 10:11:06 -0600 |
---|---|---|
committer | Sawyer X <xsawyerx@cpan.org> | 2019-05-15 07:27:57 +0300 |
commit | 37beca6c83dd6059068c47010391296790db7228 (patch) | |
tree | 1f5d32e15b1699106b9bb16114c465d22beffe58 | |
parent | f431d5039c643d761599d2a06aa209d0b61c480e (diff) | |
download | perl-37beca6c83dd6059068c47010391296790db7228.tar.gz |
Fix up perldelta in regard to Unicode versions
-rw-r--r-- | pod/perldelta.pod | 37 |
1 files changed, 11 insertions, 26 deletions
diff --git a/pod/perldelta.pod b/pod/perldelta.pod index 91eb006853..6c944b9fd3 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -19,9 +19,18 @@ L<[perl #133788]|https://rt.perl.org/Ticket/Display.html?id=133788>. =head1 Core Enhancements -=head2 Unicode 11.0 is supported +=head2 Unicode 12.1 is supported -For details, see L<https://www.unicode.org/versions/Unicode11.0.0/>. +Because of a change in Unicode release cycles, Perl jumps from Unicode +10.0 in Perl 5.28 to Unicode 12.1 in Perl 5.30. + +For details on the Unicode changes, see +L<https://www.unicode.org/versions/Unicode11.0.0/> for 11.0; +L<https://www.unicode.org/versions/Unicode12.0.0/> for 12.0; +and +L<https://www.unicode.org/versions/Unicode12.1.0/> for 12.1. +(Unicode 12.1 differs from 12.0 only in the addition of a single +character, that for the new Japanese era name.) The Word_Break property, as in past Perl releases, remains tailored to behave more in line with expectations of Perl users. This means that @@ -32,19 +41,6 @@ as causing breaks: TAB, NO BREAK SPACE, and FIGURE SPACE (U+2007). We have decided to continue to use the previous Perl tailoring with regards to these. -As of July 2018, another aspect of Unicode 11.0 is causing problems, and -that is the changing the Georgian script to have both lower and -uppercase letters. It turns out that many devices do not have fonts -installed that can display the new uppercase letters, and people using -Georgian are finding their text more or less illegible. It is being -suggested that implementations delay their adoption of this portion of -11.0. - -But since the next stable release of Perl is almost a year away, this -aspect of 11.0 is being left in, with the option to back it out if -things haven't improved by that time, or if we get too many complaints -about the development release being unusable for Georgian users. - =head2 The upper limit C<"n"> specifiable in a regular expression quantifier of the form C<"{m,n}"> has been doubled to 65534 @@ -52,17 +48,6 @@ The meaning of an unbounded upper quantifier C<"{m,}"> remains unchanged. It matches 2**31 - 1 times on most platforms, and more on ones where a C language short variable is more than 4 bytes long. -=head2 Unicode 12.0 is supported - -For details, see L<https://www.unicode.org/versions/Unicode12.0.0/>. - -Because of a change in Unicode release cycles, Perl jumps from Unicode -10.0 in Perl 5.28 to Unicode 12.0 in Perl 5.30. - -=head2 Perl now supports draft Unicode 12.1 - -Unicode 12.1 differs from 12.0 only in the addition of a single -character, that for the new Japanese era name. =head2 Wildcards in Unicode property value specifications are now partially supported |