/usr/share/perl/5.14.2/Text/Wrap.pm is in perl-base 5.14.2-6ubuntu2.
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 | package Text::Wrap;
use warnings::register;
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(wrap fill);
@EXPORT_OK = qw($columns $break $huge);
$VERSION = 2009.0305;
use vars qw($VERSION $columns $debug $break $huge $unexpand $tabstop
$separator $separator2);
use strict;
BEGIN {
$columns = 76; # <= screen width
$debug = 0;
$break = '\s';
$huge = 'wrap'; # alternatively: 'die' or 'overflow'
$unexpand = 1;
$tabstop = 8;
$separator = "\n";
$separator2 = undef;
}
use Text::Tabs qw(expand unexpand);
sub wrap
{
my ($ip, $xp, @t) = @_;
local($Text::Tabs::tabstop) = $tabstop;
my $r = "";
my $tail = pop(@t);
my $t = expand(join("", (map { /\s+\z/ ? ( $_ ) : ($_, ' ') } @t), $tail));
my $lead = $ip;
my $nll = $columns - length(expand($xp)) - 1;
if ($nll <= 0 && $xp ne '') {
my $nc = length(expand($xp)) + 2;
warnings::warnif "Increasing \$Text::Wrap::columns from $columns to $nc to accommodate length of subsequent tab";
$columns = $nc;
$nll = 1;
}
my $ll = $columns - length(expand($ip)) - 1;
$ll = 0 if $ll < 0;
my $nl = "";
my $remainder = "";
use re 'taint';
pos($t) = 0;
while ($t !~ /\G(?:$break)*\Z/gc) {
if ($t =~ /\G([^\n]{0,$ll})($break|\n+|\z)/xmgc) {
$r .= $unexpand
? unexpand($nl . $lead . $1)
: $nl . $lead . $1;
$remainder = $2;
} elsif ($huge eq 'wrap' && $t =~ /\G([^\n]{$ll})/gc) {
$r .= $unexpand
? unexpand($nl . $lead . $1)
: $nl . $lead . $1;
$remainder = defined($separator2) ? $separator2 : $separator;
} elsif ($huge eq 'overflow' && $t =~ /\G([^\n]*?)($break|\n+|\z)/xmgc) {
$r .= $unexpand
? unexpand($nl . $lead . $1)
: $nl . $lead . $1;
$remainder = $2;
} elsif ($huge eq 'die') {
die "couldn't wrap '$t'";
} elsif ($columns < 2) {
warnings::warnif "Increasing \$Text::Wrap::columns from $columns to 2";
$columns = 2;
return ($ip, $xp, @t);
} else {
die "This shouldn't happen";
}
$lead = $xp;
$ll = $nll;
$nl = defined($separator2)
? ($remainder eq "\n"
? "\n"
: $separator2)
: $separator;
}
$r .= $remainder;
print "-----------$r---------\n" if $debug;
print "Finish up with '$lead'\n" if $debug;
$r .= $lead . substr($t, pos($t), length($t)-pos($t))
if pos($t) ne length($t);
print "-----------$r---------\n" if $debug;;
return $r;
}
sub fill
{
my ($ip, $xp, @raw) = @_;
my @para;
my $pp;
for $pp (split(/\n\s+/, join("\n",@raw))) {
$pp =~ s/\s+/ /g;
my $x = wrap($ip, $xp, $pp);
push(@para, $x);
}
# if paragraph_indent is the same as line_indent,
# separate paragraphs with blank lines
my $ps = ($ip eq $xp) ? "\n\n" : "\n";
return join ($ps, @para);
}
1;
__END__
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