Text::TransMetaphone::chr - Transcribe Cherokee words into IPA symbols.

Text-TransMetaphone documentation Contained in the Text-TransMetaphone distribution.

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NAME

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Text::TransMetaphone::chr - Transcribe Cherokee words into IPA symbols.

SYNOPSIS

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This module is used by Text::TransMetaphone and need not be used directly.

DESCRIPTION

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The Text::TransMetaphone::chr module implements the TransMetaphone algorithm for Cherokee. The module provides a trans_metaphone function that accepts an Cherokee word as an argument and returns a list of keys transcribed into IPA symbols under Cherokee orthography rules. The last key of the list is a regular expression that matching all previously returned keys.

A reverse_key function is also provided to convert an IPA symbol key into a regular expression that would phonological sequence under Cherokee orthography.

STATUS

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The Cherokee module applies basic phonetic mappings to generate keys. Alternative keys substittue "g" with "k". The module will be updated as more rules of Cherokee orthography are learnt.

COPYRIGHT

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

BUGS

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None presently known.

AUTHOR

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Daniel Yacob, dyacob@cpan.org

SEE ALSO

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Text::TransMetaphone

Text-TransMetaphone documentation Contained in the Text-TransMetaphone distribution. 
package Text::TransMetaphone::chr;

use utf8;
BEGIN
{
	use strict;
	use vars qw( $VERSION $LocaleRange );

	$VERSION = '0.01';

	$LocaleRange = qr/\p{InCherokee}/;

}


sub trans_metaphone
{
	#
	# since I know nothing about cherokee orthography,
	# this just blindly strips vowels and transliterates
	# text onto IPA.  we don't worry about key length for now
	#

	$_ = $_[0];

	#
	# strip out all but first vowel:
	#
	s/^[Ꭰ-Ꭵ]/a/;
	s/[Ꭰ-Ꭵ]//g;

	#                ᎦᎧ                      ᎾᏀ   ᏅᏌ              ᏛᏣ                Ᏼ
	tr/ᎦᎧᎭ-ᎾᏀ-ᏅᏌ-ᏛᏣ-Ᏼ/gkhhhhhhllllllmmmmmnnnnnnnsssssssdtdtdtdddʦʦʦʦʦʦwwwwwwjjjjjj/;
	s/Ꮏ/hn/g;
	s/[Ꮖ-Ꮛ]/kʷ/g;
	s/Ꮬ/dl/g;
	s/[Ꮭ-Ꮲ]/tl/g;

	my @keys = ( $_ );
	my $re = $_;

	while ( $keys[0] =~ /[ᎨᎩᎪᎫᎬ]/ ) {
		my @newKeys;
		for (my $i=0; $i < @keys; $i++) {
			$newKeys[$i] = $keys[$i];     # copy old keys
			$keys[$i]    =~ s/[ᎨᎩᎪᎫᎬ]/g/; # update old keys for primary mapping
			$newKeys[$i] =~ s/[ᎨᎩᎪᎫᎬ]/k/; # update new keys for primary mapping
		}
		push (@keys,@newKeys);  # add new keys to old keys
	}
	$re =~ s/[ᎨᎩᎪᎫᎬ]/[gk]/g; 

	push ( @keys, qr/$re/ );

	@keys;
}


sub reverse_key
{
	$_ = $_[0];

	s/a/[Ꭰ-Ꭵ]/g;

	tr/gkggggghhhhhhllllllmmmmmnnnnnnnsssssssdtdtdtdddʦʦʦʦʦʦwwwwwwjjjjjj/Ꭶ-ᎾᏀ-ᏅᏌ-ᏛᏣ-Ᏼ/;

	s/k/Ꭺ/g;

	s/hn/Ꮏ/g;
	s/kʷ/[Ꮖ-Ꮛ]/g;
	s/dl/Ꮬ/g;
	s/tl/[Ꮭ-Ꮲ]/g;

	$_;
}



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