/usr/share/perl5/Text/Glob.pm is in libtext-glob-perl 0.10-1.
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 | package Text::Glob;
use strict;
use Exporter;
use vars qw/$VERSION @ISA @EXPORT_OK
$strict_leading_dot $strict_wildcard_slash/;
$VERSION = '0.10';
@ISA = 'Exporter';
@EXPORT_OK = qw( glob_to_regex glob_to_regex_string match_glob );
$strict_leading_dot = 1;
$strict_wildcard_slash = 1;
use constant debug => 0;
sub glob_to_regex {
my $glob = shift;
my $regex = glob_to_regex_string($glob);
return qr/^$regex$/;
}
sub glob_to_regex_string
{
my $glob = shift;
my $seperator = $Text::Glob::seperator;
$seperator = "/" unless defined $seperator;
$seperator = quotemeta($seperator);
my ($regex, $in_curlies, $escaping);
local $_;
my $first_byte = 1;
for ($glob =~ m/(.)/gs) {
if ($first_byte) {
if ($strict_leading_dot) {
$regex .= '(?=[^\.])' unless $_ eq '.';
}
$first_byte = 0;
}
if ($_ eq '/') {
$first_byte = 1;
}
if ($_ eq '.' || $_ eq '(' || $_ eq ')' || $_ eq '|' ||
$_ eq '+' || $_ eq '^' || $_ eq '$' || $_ eq '@' || $_ eq '%' ) {
$regex .= "\\$_";
}
elsif ($_ eq '*') {
$regex .= $escaping ? "\\*" :
$strict_wildcard_slash ? "(?:(?!$seperator).)*" : ".*";
}
elsif ($_ eq '?') {
$regex .= $escaping ? "\\?" :
$strict_wildcard_slash ? "(?!$seperator)." : ".";
}
elsif ($_ eq '{') {
$regex .= $escaping ? "\\{" : "(";
++$in_curlies unless $escaping;
}
elsif ($_ eq '}' && $in_curlies) {
$regex .= $escaping ? "}" : ")";
--$in_curlies unless $escaping;
}
elsif ($_ eq ',' && $in_curlies) {
$regex .= $escaping ? "," : "|";
}
elsif ($_ eq "\\") {
if ($escaping) {
$regex .= "\\\\";
$escaping = 0;
}
else {
$escaping = 1;
}
next;
}
else {
$regex .= $_;
$escaping = 0;
}
$escaping = 0;
}
print "# $glob $regex\n" if debug;
return $regex;
}
sub match_glob {
print "# ", join(', ', map { "'$_'" } @_), "\n" if debug;
my $glob = shift;
my $regex = glob_to_regex $glob;
local $_;
grep { $_ =~ $regex } @_;
}
1;
__END__
=head1 NAME
Text::Glob - match globbing patterns against text
=head1 SYNOPSIS
use Text::Glob qw( match_glob glob_to_regex );
print "matched\n" if match_glob( "foo.*", "foo.bar" );
# prints foo.bar and foo.baz
my $regex = glob_to_regex( "foo.*" );
for ( qw( foo.bar foo.baz foo bar ) ) {
print "matched: $_\n" if /$regex/;
}
=head1 DESCRIPTION
Text::Glob implements glob(3) style matching that can be used to match
against text, rather than fetching names from a filesystem. If you
want to do full file globbing use the File::Glob module instead.
=head2 Routines
=over
=item match_glob( $glob, @things_to_test )
Returns the list of things which match the glob from the source list.
=item glob_to_regex( $glob )
Returns a compiled regex which is the equivalent of the globbing
pattern.
=item glob_to_regex_string( $glob )
Returns a regex string which is the equivalent of the globbing
pattern.
=back
=head1 SYNTAX
The following metacharacters and rules are respected.
=over
=item C<*> - match zero or more characters
C<a*> matches C<a>, C<aa>, C<aaaa> and many many more.
=item C<?> - match exactly one character
C<a?> matches C<aa>, but not C<a>, or C<aaa>
=item Character sets/ranges
C<example.[ch]> matches C<example.c> and C<example.h>
C<demo.[a-c]> matches C<demo.a>, C<demo.b>, and C<demo.c>
=item alternation
C<example.{foo,bar,baz}> matches C<example.foo>, C<example.bar>, and
C<example.baz>
=item leading . must be explicitly matched
C<*.foo> does not match C<.bar.foo>. For this you must either specify
the leading . in the glob pattern (C<.*.foo>), or set
C<$Text::Glob::strict_leading_dot> to a false value while compiling
the regex.
=item C<*> and C<?> do not match the seperator (i.e. do not match C</>)
C<*.foo> does not match C<bar/baz.foo>. For this you must either
explicitly match the / in the glob (C<*/*.foo>), or set
C<$Text::Glob::strict_wildcard_slash> to a false value while compiling
the regex, or change the seperator that Text::Glob uses by setting
C<$Text::Glob::seperator> to an alternative value while compiling the
the regex.
=back
=head1 BUGS
The code uses qr// to produce compiled regexes, therefore this module
requires perl version 5.005_03 or newer.
=head1 AUTHOR
Richard Clamp <richardc@unixbeard.net>
=head1 COPYRIGHT
Copyright (C) 2002, 2003, 2006, 2007 Richard Clamp. All Rights Reserved.
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=head1 SEE ALSO
L<File::Glob>, glob(3)
=cut
|