1<?php
2
3/**
4 * POSIX regular expressions each coupled with a string that they match,
5 * based on documentation on http://www.tin.org/bin/man.cgi?section=7&topic=regex .
6 */
7$expressions = array(
8  //array(pattern, string to match)
9    array('..(a|b|c)(a|b|c)..', '--- ab ---'),
10    array('()', ''),
11    array('()', 'abcdef'),
12    array('[x]|[^x]', 'abcdef'),
13    array('(a{1})(a{1,}) (b{1,3}) (c+) (d?ddd|e)', '--- aaa bbb ccc ddd ---'),
14    array('\\\\\`\^\.\[\$\(\)\|\*\+\?\{\\\'', '\\`^.[$()|*+?{\''),
15    array('\\a', 'a'),
16    array('[0-9][^0-9]', '2a'),
17    array('^[[:alnum:]]{62,62}$', '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'),
18    array('^[[:digit:]]{5}', '0123456789'),
19	array('[[:digit:]]{5}$', '0123456789'),
20	array('[[:blank:]]{1,10}', "\n \t"),
21	array('[[:print:]]{3}', " a "),
22);
23
24?>