Module:Trim quotes

local p = {}

function p._trim(s)

if s then

if s:match(^(['"]).*%1$) then return p._trim(string.sub(s,2,-2)) else return s end

else

return ""

end

end

function p.trim(frame)

local s = (frame.args['s'] or frame.args[1]) or (frame:getParent().args['s'] or frame:getParent().args[1])

return p._trim(s)

end

return p