capital letters with certain modifiers: the Full case-folding
decomposes the letter, while the Simple case-folding would map
it to a single character.
- [ 9] see UTR#13 Unicode Newline Guidelines
+ [ 9] see UTR #13 Unicode Newline Guidelines
[10] should do ^ and $ also on \x{85}, \x{2028} and \x{2029}
(should also affect <>, $., and script line numbers)
(the \x{85}, \x{2028} and \x{2029} do match \s)
[a] You can mimic class subtraction using lookahead.
-For example, what TR18 might write as
+For example, what UTR #18 might write as
[{Greek}-[{UNASSIGNED}]]
which will match assigned characters known to be part of the Greek script.
+Also see the Unicode::Regex::Set module, it does implement the full
+UTR #18 grouping, intersection, union, and removal (subtraction) syntax.
+
[b] See L</"User-Defined Character Properties">.
=item *
=over 4
-=item chmod, chmod, chown, chroot, exec, link, mkdir, rename, rmdir, stat, symlink, truncate, unlink, utime
+=item *
-=item %ENV
+chmod, chmod, chown, chroot, exec, link, mkdir
+rename, rmdir stat, symlink, truncate, unlink, utime
-=item glob (aka the <*>)
+=item *
-=item open, opendir, sysopen
+%ENV
-=item qx (aka the backtick operator), system
+=item *
+
+glob (aka the <*>)
+
+=item *
+
+open, opendir, sysopen
+
+=item *
+
+qx (aka the backtick operator), system
+
+=item *
-=item readdir, readlink
+readdir, readlink
=back