Module:Yesno

local p = {}

function p.yesno(frame)

-- defaults local retvals = { yes  = "yes", no   = "", ["¬"] = ""   }

-- Allow arguments to override defaults. Arguments are taken from -- the parent frame; other arguments are ignored. for k,v in pairs(frame.args) do       retvals[k] = v    end

val = args[1]

-- First deal with the case if val is nil, then deal with other cases. if val == nil then return retvals['¬'] end

val = val:lower         -- Make lowercase. val = val:match'^%s*(.*%S)' or '' -- Trim whitespace.

-- Cases are ordered by (probable) likelihood of use. if val == '' then return retvals['blank'] or retvals['no'] elseif val == 'yes' then return retvals['yes'] elseif val == 'no' then return retvals['no'] elseif val == 'y' then return retvals['yes'] elseif val == 'n' then return retvals['no'] elseif val == '¬' then return retvals['¬'] elseif tonumber(val) == 1 then return retvals['yes'] elseif tonumber(val) == 0 then return retvals['no'] else return retvals['def'] or retvals['yes'] end end

return p