Module:String

    From Nonbinary Wiki
    Revision as of 11:16, 22 August 2012 by mediawikiwiki>IAlex (make sub match current behaviour of {{str sub}})

    Documentation for this module may be created at Module:String/doc

    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  = first + arg3
            return string.sub( arg1, first, last )
        else
            return ""
        end
    end  
    
    return p