def identify_col_pos(txt):
	"""
	assume no delimiter in this file, so guess the best
	fixed column widths to split by
	"""
	res = []
	#res.append(0)
	lines = txt.split('\n')
	prev_ch = ''
	for col_pos, ch in enumerate(lines[0]):
		if _is_white_space(ch) is False and _is_white_space(prev_ch) is True:
			res.append(col_pos)
		prev_ch = ch
	res.append(col_pos)
	return res
assume no delimiter in this file, so guess the best
	fixed column widths to split by