Module:String

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local str = {}

function str.len( frame )
    return mw.ustring.len( frame.args[1] )
end

function str.sub( frame )
    return mw.ustring.sub( frame.args[1], tonumber( frame.args[2] ), tonumber( frame.args[3] ) )
end

function str.match( frame )
    return mw.ustring.match( frame.args[1], frame.args[2], tonumber( frame.args[3] ) )
end

return str