Hi
I have string which can hold following possible values : 

$string = "abc";
$string = "abc-def";
$string = "abc_def.12";
$string = ".abc";
$string = ".abc_123";
$string = ".abcd-def";
$string = "abcd.123.def";

[download]
I need a regexp to match all these above possible combinations.
Thanks

In reply to regex help required by ghosh123

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