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- # Pod::Text::Termcap -- Convert POD data to ASCII text with format escapes.
- # $Id: Termcap.pm,v 0.4 1999/09/20 10:17:45 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 a simple subclass of Pod::Text that overrides a few key methods to
- # output the right termcap escape sequences for formatted text on the
- # current terminal type.
-
- ############################################################################
- # Modules and declarations
- ############################################################################
-
- package Pod::Text::Termcap;
-
- require 5.004;
-
- use Pod::Text ();
- use POSIX ();
- use Term::Cap;
-
- 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: 0.4 $ ))[1]) =~ s/\.(\d)$/.0$1/;
-
-
- ############################################################################
- # Overrides
- ############################################################################
-
- # In the initialization method, grab our terminal characteristics as well as
- # do all the stuff we normally do.
- sub initialize {
- my $self = shift;
-
- # The default Term::Cap path won't work on Solaris.
- $ENV{TERMPATH} = "$ENV{HOME}/.termcap:/etc/termcap"
- . ":/usr/share/misc/termcap:/usr/share/lib/termcap";
-
- my $termios = POSIX::Termios->new;
- $termios->getattr;
- my $ospeed = $termios->getospeed;
- my $term = Tgetent Term::Cap { TERM => undef, OSPEED => $ospeed };
- $$self{BOLD} = $$term{_md} or die 'BOLD';
- $$self{UNDL} = $$term{_us} or die 'UNDL';
- $$self{NORM} = $$term{_me} or die 'NORM';
-
- unless (defined $$self{width}) {
- $$self{width} = $ENV{COLUMNS} || $$term{_co} || 78;
- $$self{width} -= 2;
- }
-
- $self->SUPER::initialize;
- }
-
- # Make level one headings bold.
- sub cmd_head1 {
- my $self = shift;
- local $_ = shift;
- s/\s+$//;
- $self->SUPER::cmd_head1 ("$$self{BOLD}$_$$self{NORM}");
- }
-
- # Make level two headings bold.
- sub cmd_head2 {
- my $self = shift;
- local $_ = shift;
- s/\s+$//;
- $self->SUPER::cmd_head2 ("$$self{BOLD}$_$$self{NORM}");
- }
-
- # Fix up B<> and I<>. Note that we intentionally don't do F<>.
- sub seq_b { my $self = shift; return "$$self{BOLD}$_[0]$$self{NORM}" }
- sub seq_i { my $self = shift; return "$$self{UNDL}$_[0]$$self{NORM}" }
-
- # Override the wrapping code to igore the special sequences.
- sub wrap {
- my $self = shift;
- local $_ = shift;
- my $output = '';
- my $spaces = ' ' x $$self{MARGIN};
- my $width = $$self{width} - $$self{MARGIN};
- my $code = "(?:\Q$$self{BOLD}\E|\Q$$self{UNDL}\E|\Q$$self{NORM}\E)";
- while (length > $width) {
- if (s/^((?:$code?[^\n]){0,$width})\s+//
- || s/^((?:$code?[^\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 ASCII text with format escapes
-
- =head1 SYNOPSIS
-
- use Pod::Text::Termcap;
- my $parser = Pod::Text::Termcap->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::Termcap is a simple subclass of Pod::Text that highlights output
- text using the correct termcap escape sequences for the current terminal.
- Apart from the format codes, it in all ways functions like Pod::Text. See
- L<Pod::Text> for details and available options.
-
- =head1 SEE ALSO
-
- L<Pod::Text|Pod::Text>, L<Pod::Parser|Pod::Parser>
-
- =head1 AUTHOR
-
- Russ Allbery E<lt>rra@stanford.eduE<gt>.
-
- =cut
-