NAME

Sub::CharacterProperties - support for user-defined character properties

SYNOPSIS

my $n = Sub::CharacterProperties->new(characters => [
    'LATIN SMALL LETTER A',
    'LATIN SMALL LETTER B',
    'LATIN SMALL LETTER C',
    'LATIN SMALL LETTER D',
    ...
]);
print $n->as_code('MySet');

DESCRIPTION

As described in perlunicode, you can define your own character properties. To do so, you need to specify the ranges of allowed characters as pairs of hexadecimal numbers. There are easier ways of combining ranges with +, -, ! and &, but if you have a diverse set of characters you are going to have to deal with hex values.

This module aims at making your task of writing these character property subroutines easier.

Basically you create an object of this class, pass it a list of the Unicode character names of the characters you'd like to allow and then have it generate the character property subroutine.

The character property subroutines are a compile-time feature, so unfortunately this module can't just install the generated subroutine. You will have to copy-and-paste it into your program.

METHODS

new

Constructs a new object. See Class::Accessor::Complex's mk_new for features of this constructor.

characters

The list of characters you would like to allow. See Class::Accessor::Complex's mk_array_accessors for details about which methods are available.

Each character should be either a Unicode character name - such as LATIN SMALL LETTER A - or a hex code point - indicated by a leading "0x" - this is useful for characters that don't have a name.

get_ranges

Assumes that the characters() have been set.

Returns a list of ranges containing character numeric values; each range is a Set::IntRange object.

as_code

Assumes that the characters() have been set.

Returns, as a string, the code of the subroutine you can use to implement your custom character properties.

Takes an optional string argument; this is used for the subroutine name. Note that according to perlunicode the subroutine name has to start with In or Is. If this argument is omitted, a dummy name - InFoo - is used.

TAGS

If you talk about this module in blogs, on del.icio.us or anywhere else, please use the setcharacterproperties tag.

BUGS AND LIMITATIONS

No bugs have been reported.

Please report any bugs or feature requests to bug-set-characterproperties@rt.cpan.org, or through the web interface at http://rt.cpan.org.

INSTALLATION

See perlmodinstall for information and options on installing Perl modules.

AVAILABILITY

The latest version of this module is available from the Comprehensive Perl Archive Network (CPAN). Visit <http://www.perl.com/CPAN/> to find a CPAN site near you. Or see <http://www.perl.com/CPAN/authors/id/M/MA/MARCEL/>.

AUTHOR

Marcel Grünauer, <marcel@cpan.org>

COPYRIGHT AND LICENSE

Copyright 2007 by Marcel Grünauer

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.