/usr/share/perl5/Lintian/Tag/TextUtil.pm is in lintian 2.5.30+deb8u4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 | # Hey emacs! This is a -*- Perl -*- script!
# Lintian::Tag::TextUtil -- Perl utility functions for lintian
# Copyright (C) 1998 Christian Schwarz and Richard Braakman
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, you can find it on the World Wide
# Web at http://www.gnu.org/copyleft/gpl.html, or write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.
package Lintian::Tag::TextUtil;
use strict;
use warnings;
use Exporter qw(import);
our @EXPORT_OK= qw(split_paragraphs wrap_paragraphs dtml_to_html dtml_to_text);
# requires wrap() function
use Text::Wrap;
use Lintian::Util qw(fail strip);
# html_wrap -- word-wrap a paragaph. The wrap() function from Text::Wrap
# is not suitable, because it chops words that are longer than the line
# length.
sub html_wrap {
my ($lead, @text) = @_;
my @words = split(' ', join(' ', @text));
# subtract 1 to compensate for the lack of a space before the first word.
my $ll = length($lead) - 1;
my $cnt = 0;
my $r = '';
while ($cnt <= $#words) {
if ($ll + 1 + length($words[$cnt]) > 76) {
if ($cnt == 0) {
# We're at the start of a line, and word still does not
# fit. Don't wrap it.
$r .= $lead . shift(@words) . "\n";
} else {
# start new line
$r .= $lead . join(' ', splice(@words, 0, $cnt)) . "\n";
$ll = length($lead) - 1;
$cnt = 0;
}
} else {
$ll += 1 + length($words[$cnt]);
$cnt++;
}
}
if ($#words >= 0) {
# finish last line
$r .= $lead . join(' ', @words) . "\n";
}
return $r;
}
# split_paragraphs -- splits a bunch of text lines into paragraphs.
# This function returns a list of paragraphs.
# Paragraphs are separated by empty lines. Each empty line is a
# paragraph. Furthermore, indented lines are considered a paragraph.
sub split_paragraphs {
return '' unless (@_);
my $t = join("\n",@_);
my ($l,@o);
while ($t) {
$t =~ s/^\.\n/\n/o;
# starts with space or empty line?
if (($t =~ s/^([ \t][^\n]*)\n?//o) or ($t =~ s/^()\n//o)) {
#FLUSH;
if ($l) {
strip($l);
$l =~ s/\s++/ /go;
push(@o,$l);
undef $l;
}
#
push(@o,$1);
}
# normal line?
elsif ($t =~ s/^([^\n]*)\n?//o) {
$l .= "$1 ";
}
# what else can happen?
else {
fail('internal error in wrap');
}
}
#FLUSH;
if ($l) {
strip($l);
$l =~ s/\s++/ /go;
push(@o,$l);
undef $l;
}
#
return @o;
}
sub dtml_to_html {
my @o;
my $pre=0;
for $_ (@_) {
s{\&maint\;}
{<a href=\"mailto:lintian-maint\@debian.org\">Lintian maintainer</a>}xsmo;
s{\&debdev\;}
{<a href=\"mailto:debian-devel\@lists.debian.org\">debian-devel</a>}xsmo;
# empty line?
if (/^\s*$/o) {
if ($pre) {
push(@o,"\n");
}
}
# preformatted line?
elsif (/^\s/o) {
if (not $pre) {
push(@o,'<pre>');
$pre=1;
}
push(@o,$_);
}
# normal line
else {
if ($pre) {
my $last = pop @o;
$last =~ s,\n?$,</pre>\n,o;
push @o, $last;
$pre=0;
}
push(@o,"<p>$_</p>\n");
}
}
if ($pre) {
my $last = pop @o;
$last =~ s,\n?$,</pre>\n,o;
push @o, $last;
$pre=0;
}
return @o;
}
sub dtml_to_text {
for $_ (@_) {
# substitute Lintian &tags;
s,&maint;,lintian-maint\@debian.org,go;
s,&debdev;,debian-devel\@lists.debian.org,go;
# substitute HTML <tags>
s,<i>,<,go;
s,</i>,>,go;
s,<[^>]+>,,go;
# substitute HTML &tags;
s,<,<,go;
s,>,>,go;
s,&,\&,go;
# preformatted?
if (not /^\s/o) {
# no.
s,\s\s+, ,go;
s,^ ,,o;
s, $,,o;
}
}
return @_;
}
# wrap_paragraphs -- wrap paragraphs in dpkg/dselect style.
# indented lines are not wrapped but displayed "as is"
sub wrap_paragraphs {
my $lead = shift;
my $html = 0;
if ($lead eq 'HTML') {
$html = 1;
$lead = shift;
}
my $o;
# Tell Text::Wrap that very long "words" (e.g. URLs) should rather
# "overflow" the column width than be broken into multiple lines.
# (#719769)
local $Text::Wrap::huge = 'overflow';
for my $t (split_paragraphs(@_)) {
# empty or indented line?
if ($t eq '' or $t =~ /^\s/) {
$o .= "$lead$t\n";
} else {
if ($html) {
$o .= html_wrap($lead, "$t\n");
} else {
$o .= wrap($lead, $lead, "$t\n");
}
}
}
return $o;
}
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
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