facebook username validation regex pattern

i need a regex pattern to validate if a string is a valid facebook username?


According to this site...

preg_match('/^[a-z\d.]{5,}$/i', $username);

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Styling icon of MenuItem on Android

android design actionbarsherlock android-actionbar menuitem

I'd like to stylize the three dots of the button of menuitem (like on Nexus Phone)

Get number of elements in an Enum type and iterate over them

c# reflection enums

Is there a way to iterate over elements in an enum type? Something like:

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