Module:String: Difference between revisions

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    --{{
    local p = {}
    local p = {}



    Revision as of 23:55, 17 May 2013

    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  = arg2 + arg3
            return string.sub( arg1, first, last )
        else
            return ""
        end
    end  
    
    --[[
    This function implements that features of {{str sub old}} and is kept in order
    to maintain these older templates.
    ]]
    function p.sublength( frame )
        local i = tonumber( frame.args.i ) or 0
        local len = tonumber( frame.args.len )
        return mw.ustring.sub( frame.args.s, i + 1, len and ( i + len ) )
    end
    
    return p