119 lines
2.3 KiB
Perl
119 lines
2.3 KiB
Perl
package Font::TTF::Mort::Rearrangement;
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=head1 NAME
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Font::TTF::Mort::Rearrangement - Rearrangement Mort subtable for AAT
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=head1 METHODS
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=cut
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use strict;
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use vars qw(@ISA);
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use Font::TTF::Utils;
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use Font::TTF::AATutils;
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@ISA = qw(Font::TTF::Mort::Subtable);
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sub new
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{
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my ($class, $direction, $orientation, $subFeatureFlags) = @_;
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my ($self) = {
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'direction' => $direction,
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'orientation' => $orientation,
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'subFeatureFlags' => $subFeatureFlags
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};
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$class = ref($class) || $class;
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bless $self, $class;
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}
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=head2 $t->read
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Reads the table into memory
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=cut
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sub read
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{
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my ($self, $fh) = @_;
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my ($classes, $states) = AAT_read_state_table($fh, 0);
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$self->{'classes'} = $classes;
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$self->{'states'} = $states;
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$self;
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}
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=head2 $t->pack_sub()
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=cut
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sub pack_sub
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{
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my ($self) = @_;
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return AAT_pack_state_table($self->{'classes'}, $self->{'states'}, 0);
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}
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=head2 $t->print($fh)
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Prints a human-readable representation of the table
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=cut
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sub print
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{
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my ($self, $fh) = @_;
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my $post = $self->post();
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$fh = 'STDOUT' unless defined $fh;
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$self->print_classes($fh);
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$fh->print("\n");
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my $states = $self->{'states'};
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my @verbs = ( "0", "Ax->xA", "xD->Dx", "AxD->DxA",
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"ABx->xAB", "ABx->xBA", "xCD->CDx", "xCD->DCx",
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"AxCD->CDxA", "AxCD->DCxA", "ABxD->DxAB", "ABxD->DxBA",
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"ABxCD->CDxAB", "ABxCD->CDxBA", "ABxCD->DCxAB", "ABxCD->DCxBA");
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foreach (0 .. $#$states) {
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$fh->printf("\t\tState %d:", $_);
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my $state = $states->[$_];
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foreach (@$state) {
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my $flags;
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$flags .= "!" if ($_->{'flags'} & 0x4000);
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$flags .= "<" if ($_->{'flags'} & 0x8000);
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$flags .= ">" if ($_->{'flags'} & 0x2000);
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$fh->printf("\t(%s%d,%s)", $flags, $_->{'nextState'}, $verbs[($_->{'flags'} & 0x000f)]);
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}
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$fh->print("\n");
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}
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}
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1;
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=head1 BUGS
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None known
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=head1 AUTHOR
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Jonathan Kew L<http://scripts.sil.org/FontUtils>.
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=head1 LICENSING
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Copyright (c) 1998-2016, SIL International (http://www.sil.org)
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This module is released under the terms of the Artistic License 2.0.
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For details, see the full text of the license in the file LICENSE.
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=cut
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