human_filesize returns a human readable file size from a supplied integer (bytes)

human_filesize.lasso

[
define human_filesize(size::integer) => {
  /* =================================================================
  human_filesize returns a human readable file size from a supplied integer (bytes)
  ================================================================= */
	local(
		displaysize = string,
		calc		= decimal,
		kb			= 1024,
		mb			= 1024 * #kb,
		gb			= 1024 * #mb,
		tb			= 1024 * #gb
	)
	#size < #kb ? return #size + ' bytes'
	if(#size < #mb) => {
		#calc = #size->asDecimal / #kb
		return #calc->asString(-precision=0,-GroupChar=',') + ' kB'
	else(#size < #gb)
		#calc = #size->asDecimal / #mb
		return #calc->asString(-precision=0,-GroupChar=',') + ' MB'
	else(#size < #tb)
		#calc = #size->asDecimal / #gb
		return #calc->asString(-precision=0,-GroupChar=',') + ' GB'
	else
		#calc = #size->asDecimal / #tb
		return #calc->asString(-precision=0,-GroupChar=',') + ' TB'
	}
}
]