Re: How to format a number with thousandth separators?

[Wolfgang Oertl <wolfgang.oertl@...>]

The Lua printf equivalent, string.print, does not support
thousand separators.  So the only way is to do it manually, like
this:


function format_thousand(v)
	local s = string.format("%d", math.floor(v))
	local pos = string.len(s) % 3
	if pos == 0 then pos = 3 end
	return string.sub(s, 1, pos)
		.. string.gsub(string.sub(s, pos+1), "(...)", ",%1")
		.. string.sub(string.format("%.2f", v - math.floor(v)), 2)
end

print(format_thousand(1234567.89))


There may be a more elegant way, but that's the best I could come up
with!

Wolfgang