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# Pod::Text::Color -- Convert POD data to formatted color ASCII text
# $Id: Color.pm,v 0.5 1999/09/20 10:15:16 eagle Exp $
#
# Copyright 1999 by Russ Allbery <rra@stanford.edu>
#
# This program is free software; you can redistribute it and/or modify it
# under the same terms as Perl itself.
#
# This is just a basic proof of concept. It should later be modified to
# make better use of color, take options changing what colors are used for
# what text, and the like.
############################################################################
# Modules and declarations
############################################################################
package Pod::Text::Color;
require 5.004;
use Pod::Text ();
use Term::ANSIColor qw(colored);
use strict;
use vars qw(@ISA $VERSION);
@ISA = qw(Pod::Text);
# Use the CVS revision of this file as its version number.
($VERSION = (split (' ', q$Revision: 0.5 $ ))[1]) =~ s/\.(\d)$/.0$1/;
############################################################################
# Overrides
############################################################################
# Make level one headings bold.
sub cmd_head1 {
my $self = shift;
local $_ = shift;
s/\s+$//;
$self->SUPER::cmd_head1 (colored ($_, 'bold'));
}
# Make level two headings bold.
sub cmd_head2 {
my $self = shift;
local $_ = shift;
s/\s+$//;
$self->SUPER::cmd_head2 (colored ($_, 'bold'));
}
# Fix the various interior sequences.
sub seq_b { return colored ($_[1], 'bold') }
sub seq_f { return colored ($_[1], 'cyan') }
sub seq_i { return colored ($_[1], 'yellow') }
# We unfortunately have to override the wrapping code here, since the normal
# wrapping code gets really confused by all the escape sequences.
sub wrap {
my $self = shift;
local $_ = shift;
my $output = '';
my $spaces = ' ' x $$self{MARGIN};
my $width = $$self{width} - $$self{MARGIN};
while (length > $width) {
if (s/^((?:(?:\e\[[\d;]+m)?[^\n]){0,$width})\s+//
|| s/^((?:(?:\e\[[\d;]+m)?[^\n]){$width})//) {
$output .= $spaces . $1 . "\n";
} else {
last;
}
}
$output .= $spaces . $_;
$output =~ s/\s+$/\n\n/;
$output;
}
############################################################################
# Module return value and documentation
############################################################################
1;
__END__
=head1 NAME
Pod::Text::Color - Convert POD data to formatted color ASCII text
=head1 SYNOPSIS
use Pod::Text::Color;
my $parser = Pod::Text::Color->new (sentence => 0, width => 78);
# Read POD from STDIN and write to STDOUT.
$parser->parse_from_filehandle;
# Read POD from file.pod and write to file.txt.
$parser->parse_from_file ('file.pod', 'file.txt');
=head1 DESCRIPTION
Pod::Text::Color is a simple subclass of Pod::Text that highlights output
text using ANSI color escape sequences. Apart from the color, it in all
ways functions like Pod::Text. See L<Pod::Text> for details and available
options.
Term::ANSIColor is used to get colors and therefore must be installed to use
this module.
=head1 BUGS
This is just a basic proof of concept. It should be seriously expanded to
support configurable coloration via options passed to the constructor, and
B<pod2text> should be taught about those.
=head1 SEE ALSO
L<Pod::Text|Pod::Text>, L<Pod::Parser|Pod::Parser>
=head1 AUTHOR
Russ Allbery E<lt>rra@stanford.eduE<gt>.
=cut