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Postings from April 2006
Author: autrijus Date: Wed Apr 26 09:45:43 2006 New Revision: 8958 Modified: doc/trunk/design/syn/S02.pod Log: * U+201A and U+201E also have to go. Modified: doc/trunk/design/syn/S02.pod ============================================================================== --- doc/trunk/design/syn/S02.pod (original) +++ doc/trunk/design/syn/S02.pod Wed Apr 26 09:45:43 2006 @@ -51,18 +51,20 @@ For some syntactic purposes, Perl distinguishes bracketing characters from non-bracketing. Bracketing characters are defined as any Unicode characters with either bidirectional mirrorings or Ps/Pe properties. -However, bidirectional mirroring characters with no corresponding -closing characters does not qualify as opening brackets. -In practice, though, you're safest using matching characters with -Ps/Pe properties, though ASCII angle brackets are a notable exception, -since they're bidirectional but not in the Ps/Pe set. +Characters with no corresponding closing characters does not qualify +as opening brackets. This includes the second section of the BidiMirroring +data table, as well as C<U+201A> and C<U+201E>. The C<U+301D> has two closing alternatives, C<U+301E> and C<U+301F>; Perl 6 only recognizes the one with lower code point number, C<U+301E>, as the closing brace. This policy also applies to new one-to-many mappings introduced in the future. +In practice, though, you're safest using matching characters with +Ps/Pe properties, though ASCII angle brackets are a notable exception, +since they're bidirectional but not in the Ps/Pe set. + =back =head1 Molecules