-- This module converts a number into its written English form.-- For example, "2" becomes "two", and "79" becomes "seventy-nine".
local getArgs = require('Module:Arguments').getArgs
local p =
local max = 100 -- The maximum number that can be parsed.
local ones =
local specials =
local formatRules =
function p.main(frame) local args = getArgs(frame) local num = tonumber(args[1]) local success, result = pcall(p._main, num) if success then return result else return string.format('Error: %s', result) -- "result" is the error message. end return p._main(num)end
function p._main(num) if type(num) ~= 'number' or math.floor(num) ~= num or num < 0 or num > max then error('input must be an integer between 0 and ' .. tostring(max), 2) end -- Check for numbers from 0 to 9. local onesVal = ones[num] if onesVal then return onesVal end -- Check for special numbers. local specialVal = specials[num] if specialVal then return specialVal end -- Construct the number from its format rule. onesVal = ones[num % 10] if not onesVal then error('Unexpected error parsing input ' .. tostring(num)) end for i, t in ipairs(formatRules) do if num >= t.num then return string.format(t.rule, onesVal) end end error('No format rule found for input ' .. tostring(num))end
return p