Overstrike.pm revision 7c478bd95313f5f23a4c958a745db2134aa03244
# Pod::Text::Overstrike -- Convert POD data to formatted overstrike text
# $Id: Overstrike.pm,v 1.1 2000/12/25 12:51:23 eagle Exp $
#
# Created by Joe Smith <Joe.Smith@inwap.com> 30-Nov-2000
# (based on Pod::Text::Color by Russ Allbery <rra@stanford.edu>)
#
# under the same terms as Perl itself.
#
# This was written because the output from:
#
#
# is not as rich as the output from
#
#
# and because both Pod::Text::Color and Pod::Text::Termcap are not device
# independent.
############################################################################
# Modules and declarations
############################################################################
require 5.004;
use strict;
# Don't use the CVS revision as the version, since this module is also in
# Perl core and too many things could munge CVS magic revision strings.
# This number should ideally be the same as the CVS revision in podlators,
# however.
$VERSION = 1.01;
############################################################################
# Overrides
############################################################################
# Make level one headings bold, overridding any existing formatting.
sub cmd_head1 {
my $self = shift;
local $_ = shift;
s/\s+$//;
s/(.)\cH\1//g;
s/_\cH//g;
s/(.)/$1\b$1/g;
}
# Make level two headings bold, overriding any existing formatting.
sub cmd_head2 {
my $self = shift;
local $_ = shift;
s/\s+$//;
s/(.)\cH\1//g;
s/_\cH//g;
s/(.)/$1\b$1/g;
}
# Make level three headings underscored, overriding any existing formatting.
sub cmd_head3 {
my $self = shift;
local $_ = shift;
s/\s+$//;
s/(.)\cH\1//g;
s/_\cH//g;
s/(.)/_\b$1/g;
}
# Fix the various interior sequences.
# 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 = '';
while (length > $width) {
} else {
last;
}
}
$output =~ s/\s+$/\n\n/;
$output;
}
############################################################################
# Module return value and documentation
############################################################################
1;
=head1 NAME
Pod::Text::Overstrike - Convert POD data to formatted overstrike text
=head1 SYNOPSIS
use Pod::Text::Overstrike;
my $parser = Pod::Text::Overstrike->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::Overstrike is a simple subclass of Pod::Text that highlights
output text using overstrike sequences, in a manner similar to nroff.
Characters in bold text are overstruck (character, backspace, character) and
characters in underlined text are converted to overstruck underscores
(underscore, backspace, character). This format was originally designed for
terminals.
Overstruck text is best viewed by page-at-a-time programs that take
advantage of the terminal's B<stand-out> and I<underline> capabilities, such
as the less program on Unix.
Apart from the overstrike, it in all ways functions like Pod::Text. See
L<Pod::Text> for details and available options.
=head1 BUGS
Currently, the outermost formatting instruction wins, so for example
underlined text inside a region of bold text is displayed as simply bold.
There may be some better approach possible.
=head1 SEE ALSO
L<Pod::Text|Pod::Text>, L<Pod::Parser|Pod::Parser>
=head1 AUTHOR
Joe Smith E<lt>Joe.Smith@inwap.comE<gt>, using the framework created by Russ
Allbery E<lt>rra@stanford.eduE<gt>.
=cut