Module:Yesno

local p = {}

function p.yesno(frame)

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

-- Allow arguments to override defaults. local args; if frame == mw.getCurrentFrame then -- We're being called via #invoke. If the invoking template passed any args, use -- them. Otherwise, use the args that were passed into the template. args = frame:getParent.args; for k, v in pairs(frame.args) do           args = frame.args; break end else -- We're being called from another module or from the debug console, so assume -- the args are passed in directly. args = frame; end for k,v in pairs(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.

if val == '' then return retvals['blank'] or retvals['no'] elseif val == 'n' or val == 'no' or tonumber(val) == 0 then return retvals['no'] elseif val == 'y' or val == 'yes' or tonumber(val) == 1 then return retvals['yes'] elseif val == '¬' then return retvals['¬'] else return retvals['def'] or retvals['yes'] end end

return p