Module:Shared: Difference between revisions

Module:Shared (view source)

109 bytes removed , 22 February 2022

formatnum: Use faster variant of function

17,105

edits

@@ Line 151: / Line 151: @@
 end
---Stolen from Stack Overflow
 --Adds commas
 function p.formatnum(number)
-	local i, j, minus, int, fraction = tostring(number):find('([-]?)(%d+)([.]?%d*)')
+	if tonumber(number) == nil then
+		return number
-	-- reverse the int-string and append a comma to all blocks of 3 digits
+	else
-	int = int:reverse():gsub("(%d%d%d)", "%1,")
+		local result = number
+		while true do
-	-- reverse the int-string back remove an optional comma and put the
+			-- Format in blocks of 3 digits at a time until formatting is complete
-	-- optional minus and fractional part back
+			result, k = string.gsub(result, "^(-?%d+)(%d%d%d)", '%1,%2')
-	return minus .. int:reverse():gsub("^,", "") .. fraction
+			if k == 0 then
+				break
+			end
+		end
+		return result
+	end
 end