Module:NumberSpell

Module documentation[view][edit][history][purge]

This documentation is transcluded from Module:NumberSpell/doc. Changes can be proposed in the talk page.

Module:NumberSpell is imported from Module:NumberSpell on StarCitizen.

This module is imported from StarCitizen. Although the visual appearance is similar, some functionality has been altered. Please refer to the Star Citizen page for detailed documentation.

This module is unused.

This module is neither invoked by a template nor required/loaded by another module. If this is in error, make sure to add {{Documentation}}/{{No documentation}} to the calling template's or parent's module documentation.

Module:NumberSpell requires Module:Arguments.

Function list
L 53 — p.main L 65 — p._main

Module:NumberSpell takes a number and returns the equivalent English word. For example, "2" becomes "two" and "79" becomes "seventy-nine". Numbers must be integers between 0 and 100.

---

-- 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 = {
	[0] = 'zero',
	[1] = 'one',
	[2] = 'two',
	[3] = 'three',
	[4] = 'four',
	[5] = 'five',
	[6] = 'six',
	[7] = 'seven',
	[8] = 'eight',
	[9] = 'nine'
}

local specials = {
	[10] = 'ten',
	[11] = 'eleven',
	[12] = 'twelve',
	[13] = 'thirteen',
	[15] = 'fifteen',
	[18] = 'eighteen',
	[20] = 'twenty',
	[30] = 'thirty',
	[40] = 'forty',
	[50] = 'fifty',
	[60] = 'sixty',
	[70] = 'seventy',
	[80] = 'eighty',
	[90] = 'ninety',
	[100] = 'one hundred'
}

local formatRules = {
	{num = 90, rule = 'ninety-%s'},
	{num = 80, rule = 'eighty-%s'},
	{num = 70, rule = 'seventy-%s'},
	{num = 60, rule = 'sixty-%s'},
	{num = 50, rule = 'fifty-%s'},
	{num = 40, rule = 'forty-%s'},
	{num = 30, rule = 'thirty-%s'},
	{num = 20, rule = 'twenty-%s'},
	{num = 10, rule = '%steen'}
}

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('<strong class="error">Error: %s</strong>', 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