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