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package Pod::Text::Ansi; |
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BEGIN { |
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$Pod::Text::Ansi::AUTHORITY = 'cpan:HINRIK'; |
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} |
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BEGIN { |
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$Pod::Text::Ansi::VERSION = '0.05'; |
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} |
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use strict; |
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use warnings FATAL => 'all'; |
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use Term::ANSIColor qw(colored); |
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8699
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use base 'Pod::Text'; |
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# wrap every line in Ansi color codes |
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sub color { |
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my ($text, @codes) = @_; |
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my @lines = split/\n/, $text; |
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$_ = colored($_, @codes) for @lines; |
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return join "\n", @lines; |
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} |
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# the same, but only if the entire text is not already colored |
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sub only_color { |
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my ($text, @codes) = @_; |
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return $text if $text =~ /^\e\[/ && $text =~ /\e\[0?m$/; |
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return color($text, @codes); |
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} |
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# Make level one headings bold. |
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sub cmd_head1 { |
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my ($self, $attrs, $text) = @_; |
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$text =~ s/\s+$//; |
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$self->SUPER::cmd_head1($attrs, only_color($text, 'bold')); |
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} |
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# Make level two headings bold. |
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sub cmd_head2 { |
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my ($self, $attrs, $text) = @_; |
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$text =~ s/\s+$//; |
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$self->SUPER::cmd_head2($attrs, only_color($text, 'bold')); |
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} |
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# Make level three headings bold. |
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sub cmd_head3 { |
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my ($self, $attrs, $text) = @_; |
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$text =~ s/\s+$//; |
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$self->SUPER::cmd_head3($attrs, only_color("$text", 'bold')); |
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} |
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# Make level four headings bold. |
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sub cmd_head4 { |
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my ($self, $attrs, $text) = @_; |
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$text =~ s/\s+$//; |
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$self->SUPER::cmd_head4($attrs, only_color("$text", 'bold')); |
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} |
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sub cmd_verbatim { |
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my ($self, $attrs, $text) = @_; |
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$text = join("\n", map { color($_, 'yellow') } split(/\n/, $text)); |
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$self->SUPER::cmd_verbatim($attrs, color($text, 'yellow')); |
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} |
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# Fix the various formatting codes. |
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sub cmd_c { return color($_[2], 'yellow') } |
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sub cmd_b { return color($_[2], 'bold') } |
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sub cmd_e { return color($_[2], 'green') } |
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sub cmd_f { return color($_[2], 'cyan') } |
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sub cmd_i { return color($_[2], 'green') } |
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sub cmd_l { return color($_[2], 'blue') } |
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# Output any included code in magenta |
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sub output_code { |
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my ($self, $code) = @_; |
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$code = color($code, 'magenta'); |
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$self->output ($code); |
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} |
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# We unfortunately have to override the wrapping code here, since the normal |
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# wrapping code gets really confused by all the escape sequences. |
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sub wrap { |
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my $self = shift; |
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local $_ = shift; |
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my $output = ''; |
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my $spaces = ' ' x $$self{MARGIN}; |
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my $width = $$self{opt_width} - $$self{MARGIN}; |
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# We have to do $shortchar and $longchar in variables because the |
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# construct ${char}{0,$width} didn't do the right thing until Perl 5.8.x. |
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my $char = '(?:(?:\e\[[\d;]+m)*[^\n])'; |
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my $shortchar = $char . "{0,$width}"; |
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my $longchar = $char . "{$width}"; |
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while (length > $width) { |
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if (s/^($shortchar)\s+// || s/^($longchar)//) { |
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$output .= $spaces . $1 . "\n"; |
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} else { |
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last; |
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} |
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} |
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$output .= $spaces . $_; |
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$output =~ s/\s+$/\n\n/; |
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$output; |
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} |
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1; |
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=encoding utf8 |
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=head1 NAME |
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Pod::Text::Ansi - Convert POD to ANSI-colored text |
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=head1 SYNOPSIS |
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use Pod::Text::Ansi; |
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my $parser = Pod::Text::Ansi->new (sentence => 0, width => 78); |
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# Read POD from STDIN and write to STDOUT. |
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$parser->parse_from_filehandle; |
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# Read POD from file.pod and write to file.txt. |
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$parser->parse_from_file ('file.pod', 'file.txt'); |
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=head1 DESCRIPTION |
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Pod::Text::Ansi is a simple subclass of Pod::Text that highlights output |
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text using ANSI color escape sequences. Apart from the color, it in all |
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ways functions like Pod::Text. See L for details and available |
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options. |
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=head1 SEE ALSO |
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L, L, |
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L |
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=head1 AUTHOR |
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Hinrik Örn Sigurðsson, L |
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Based on L by Russ Allbery |
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L. |
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=head1 CAVEATS |
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=over |
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=item * It currently doesn't respect some forms of nesting. |
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Example: |
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I<'italic', C<'italic code'>, 'italic'>. |
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Contrary to what the three terms above say, they will be rendered as italic |
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only, then code only, then normal, respectively. |
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Non-overlapping nesting such as the following does work, though: |
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I< C > |
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=item * The wrapping code isn't perfect. |
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Some formatting codes that stretch over multiple lines will break. One example |
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would be an C<< LZ<><> >> code that's too long to fit on one line. |
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=back |
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167
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=head1 LICENSE AND COPYRIGHT |
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Copyright 1999, 2001, 2004, 2006 by Russ Allbery L. |
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Copyright (c) 2009, Hinrik Örn Sigurðsson L. |
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This program is free software; you may redistribute it and/or modify it |
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under the same terms as Perl itself. See L. |
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=cut |