Modül:Age

Used to calculate ages of persons given their birth date.

Documentation

Package items

age.age(frame) (function)

Calculates the age of a person given their birth date.

Parameter: frame Scribunto frame object (table)

Returns: Age of the person (number|string)

Private items

valid_date(d) (function • local)

Checks whether a given date string is a valid date.

Parameter: d Date string to check (string)

Returns: Whether the string is a valid date (boolean)

--- Used to calculate ages of persons given their birth date.
--  @file				age
require('strict')
local age = {}

local Date = require('Module:Date')

--- Checks whether a given date string is a valid date.
--  @function           valid_date
--  @param              {string} d Date string to check
--  @return             {bool} Whether the string is a valid date
--  @local
local function validDate(d)
    return pcall(function()
        Date(d)
    end)
end

--- Calculates the age of a person given their birth date.
--  @function           age.age
--  @param              {table} frame Scribunto frame object
--  @returns            {number|string} Age of the person
function age.age(frame)
	local inputDate = mw.text.killMarkers(frame.args[1])
	if not validDate(inputDate) then
		return ''
	end
	local date = Date(inputDate)
	local currentDate = Date(os.date())
	return (currentDate - date):getyear() - 1
end

return age