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1 | # Pod::Text::Color -- Convert POD data to formatted color ASCII text |
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2 | # $Id: Color.pm,v 0.6 2000/12/25 12:52:39 eagle Exp $ |
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3 | # |
4 | # Copyright 1999 by Russ Allbery <rra@stanford.edu> |
5 | # |
6 | # This program is free software; you can redistribute it and/or modify it |
7 | # under the same terms as Perl itself. |
8 | # |
9 | # This is just a basic proof of concept. It should later be modified to |
10 | # make better use of color, take options changing what colors are used for |
11 | # what text, and the like. |
12 | |
13 | ############################################################################ |
14 | # Modules and declarations |
15 | ############################################################################ |
16 | |
17 | package Pod::Text::Color; |
18 | |
19 | require 5.004; |
20 | |
21 | use Pod::Text (); |
22 | use Term::ANSIColor qw(colored); |
23 | |
24 | use strict; |
25 | use vars qw(@ISA $VERSION); |
26 | |
27 | @ISA = qw(Pod::Text); |
28 | |
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29 | # Don't use the CVS revision as the version, since this module is also in |
30 | # Perl core and too many things could munge CVS magic revision strings. |
31 | # This number should ideally be the same as the CVS revision in podlators, |
32 | # however. |
33 | $VERSION = 0.06; |
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34 | |
35 | |
36 | ############################################################################ |
37 | # Overrides |
38 | ############################################################################ |
39 | |
40 | # Make level one headings bold. |
41 | sub cmd_head1 { |
42 | my $self = shift; |
43 | local $_ = shift; |
44 | s/\s+$//; |
45 | $self->SUPER::cmd_head1 (colored ($_, 'bold')); |
46 | } |
47 | |
48 | # Make level two headings bold. |
49 | sub cmd_head2 { |
50 | my $self = shift; |
51 | local $_ = shift; |
52 | s/\s+$//; |
53 | $self->SUPER::cmd_head2 (colored ($_, 'bold')); |
54 | } |
55 | |
56 | # Fix the various interior sequences. |
57 | sub seq_b { return colored ($_[1], 'bold') } |
58 | sub seq_f { return colored ($_[1], 'cyan') } |
59 | sub seq_i { return colored ($_[1], 'yellow') } |
60 | |
61 | # We unfortunately have to override the wrapping code here, since the normal |
62 | # wrapping code gets really confused by all the escape sequences. |
63 | sub wrap { |
64 | my $self = shift; |
65 | local $_ = shift; |
66 | my $output = ''; |
67 | my $spaces = ' ' x $$self{MARGIN}; |
68 | my $width = $$self{width} - $$self{MARGIN}; |
69 | while (length > $width) { |
70 | if (s/^((?:(?:\e\[[\d;]+m)?[^\n]){0,$width})\s+// |
71 | || s/^((?:(?:\e\[[\d;]+m)?[^\n]){$width})//) { |
72 | $output .= $spaces . $1 . "\n"; |
73 | } else { |
74 | last; |
75 | } |
76 | } |
77 | $output .= $spaces . $_; |
78 | $output =~ s/\s+$/\n\n/; |
79 | $output; |
80 | } |
81 | |
82 | ############################################################################ |
83 | # Module return value and documentation |
84 | ############################################################################ |
85 | |
86 | 1; |
87 | __END__ |
88 | |
89 | =head1 NAME |
90 | |
91 | Pod::Text::Color - Convert POD data to formatted color ASCII text |
92 | |
93 | =head1 SYNOPSIS |
94 | |
95 | use Pod::Text::Color; |
96 | my $parser = Pod::Text::Color->new (sentence => 0, width => 78); |
97 | |
98 | # Read POD from STDIN and write to STDOUT. |
99 | $parser->parse_from_filehandle; |
100 | |
101 | # Read POD from file.pod and write to file.txt. |
102 | $parser->parse_from_file ('file.pod', 'file.txt'); |
103 | |
104 | =head1 DESCRIPTION |
105 | |
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106 | Pod::Text::Color is a simple subclass of Pod::Text that highlights output |
107 | text using ANSI color escape sequences. Apart from the color, it in all |
108 | ways functions like Pod::Text. See L<Pod::Text> for details and available |
109 | options. |
110 | |
111 | Term::ANSIColor is used to get colors and therefore must be installed to use |
112 | this module. |
113 | |
114 | =head1 BUGS |
115 | |
116 | This is just a basic proof of concept. It should be seriously expanded to |
117 | support configurable coloration via options passed to the constructor, and |
118 | B<pod2text> should be taught about those. |
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119 | |
120 | =head1 SEE ALSO |
121 | |
122 | L<Pod::Text|Pod::Text>, L<Pod::Parser|Pod::Parser> |
123 | |
124 | =head1 AUTHOR |
125 | |
126 | Russ Allbery E<lt>rra@stanford.eduE<gt>. |
127 | |
128 | =cut |