perlunicode: Fix mistatement

[perl5.git] / pod / perlunicode.pod

diff --git a/pod/perlunicode.pod b/pod/perlunicode.pod
index aa0fdca..32c1b35 100644 (file)
--- a/pod/perlunicode.pod
+++ b/pod/perlunicode.pod
@@ -1110,7 +1110,7 @@ feature, you can use one of the following:
 
 =item *
 
-Regular expression look-ahead
+Regular expression lookahead
 
 You can mimic class subtraction using lookahead.
 For example, what UTS#18 might write as
@@ -1176,11 +1176,15 @@ Also, lines should not be split within C<CRLF> (i.e. there is no
 empty line between C<\r> and C<\n>).  For C<CRLF>, try the C<:crlf>
 layer (see L<PerlIO>).
 
-=item [9] But C<L<Unicode::LineBreak>> is available.
+=item [9] But C<qr/\b{lb}/> and C<L<Unicode::LineBreak>> are available.
 
-This module supplies line breaking conformant with
+L<C<qrE<sol>\b{lb}E<sol>>|perlrebackslash/\b{lb}> supplies default line
+breaking conformant with
 L<UAX#14 "Unicode Line Breaking Algorithm"|http://www.unicode.org/reports/tr14>.
 
+And, the module C<L<Unicode::LineBreak>> also conformant with UAX#14,
+provides customizable line breaking.
+
 =item [10]
 UTF-8/UTF-EBDDIC used in Perl allows not only C<U+10000> to
 C<U+10FFFF> but also beyond C<U+10FFFF>
@@ -1223,7 +1227,7 @@ Level 3 - Tailored Support
 
  [17] see UAX#10 "Unicode Collation Algorithms"
  [18] have Unicode::Collate but not integrated to regexes
- [19] have (?<=x) and (?=x), but look-aheads or look-behinds
+ [19] have (?<=x) and (?=x), but lookaheads or lookbehinds
       should see outside of the target substring
  [20] need insensitive matching for linguistic features other
       than case; for example, hiragana to katakana, wide and
@@ -1289,7 +1293,10 @@ encoding of numbers up to C<0x7FFF_FFFF>.  Perl continues to allow those,
 and has extended that up to 13 bytes to encode code points up to what
 can fit in a 64-bit word.  However, Perl will warn if you output any of
 these as being non-portable; and under strict UTF-8 input protocols,
-they are forbidden.
+they are forbidden.  In addition, it is deprecated to use a code point
+larger than what a signed integer variable on your system can hold.  On
+32-bit ASCII systems, this means C<0x7FFF_FFFF> is the legal maximum
+going forward (much higher on 64-bit systems).
 
 =item *
 
@@ -1820,7 +1827,7 @@ the XS level, and L<perlapi/Unicode Support> for the API details.
 Perl by default comes with the latest supported Unicode version built-in, but
 the goal is to allow you to change to use any earlier one.  In Perls
 v5.20 and v5.22, however, the earliest usable version is Unicode 5.1.
-Perl v5.18 is able to handle all earlier versions.
+Perl v5.18  and v5.24 are able to handle all earlier versions.
 
 Download the files in the desired version of Unicode from the Unicode web
 site L<http://www.unicode.org>).  These should replace the existing files in