Module:Coins2
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Documentation for this module may be created at Module:Coins2/doc
local p = {}
local function amount(a)
-- convert used globals to locals where possible to improve performance
local math = math
local string = string
local table = table
local mw = mw
local expr = mw.ext.ParserFunctions.expr
-- strip commas from input
a = string.gsub(a, ',', '')
-- check for decimals/division to determine if output should have forced 2 decimal places
local has_decimal_or_division = false
if string.match(a, "[./]") then
has_decimal_or_division = true
end
-- for performance reasons, only calculate expr if required
if tonumber(a) == nil then
a = tonumber(expr(a)) or 0
end
-- round to two decimal places if necessary
if has_decimal_or_division then
a = math.floor(a * 100 + 0.5) / 100
else
a = math.floor(a + 0.5)
end
-- format number with commas
local formatted_number
if has_decimal_or_division then
local integer_part, fractional_part = math.modf(a)
fractional_part = math.abs(fractional_part)
if (integer_part > 999 or integer_part < -999) then
integer_part = mw.language.getContentLanguage():formatNum(integer_part)
end
if fractional_part == 0 then
formatted_number = tostring(integer_part)
else
fractional_part = string.sub(string.format("%.2f", fractional_part), 2)
formatted_number = integer_part .. fractional_part
end
else
formatted_number = mw.language.getContentLanguage():formatNum(a)
end
return formatted_number
end
--
-- {{Coins}} access point
--
function p.amount(frame)
local args = frame:getParent().args
-- for {{coins|111}}
local a = args[1] or '0'
return amount(a)
end
--
-- Module access point
--
function p._amount(a)
a = tostring(a) or '0'
return amount(a)
end
return p