Module:String

local p = {} function p.length( frame ) local arg1 = frame.args[1] return string.len( arg1 ) end function p.sub( frame ) local arg1 = frame.args[1] local arg2 = tonumber( frame.args[2] ) local arg3 = tonumber( frame.args[3] ) if arg2 and arg3 then local first = arg2 + 1 local last = arg2 + arg3 return string.sub( arg1, first, last ) else return "" end end return p