import re

table = {
'comment': r'#[^\n]*',
'float_number': r'([0-9]+\.[0-9]*)|([0-9]*\.[0-9]+)',
'number': '[0-9]+',
'spaces': r'[ \t]+',
'newline': r'[\n\r]'
}

ordering = [['float_number', 'number']]
def cmp_order(a, b):
	for set in ordering:
		if a in set and b in set:
			return cmp(set.index(a), set.index(b))
	return cmp(a, b)

def conv1(table, order=cmp):
	r = []
	for k in sorted(table.keys(), cmp=order):
		r.append('(?P<%s>%s)' % (k, table[k]))
		
	exp = '|'.join(r)
	return exp, re.compile(exp)

ccc = conv1(table, cmp_order)[1]

src = '''
1. 234  	555.0123 # aaa bbb # paf
# huhu
.666
# coin'''

r2 = map(lambda x: (x.lastgroup, x.group()), ccc.finditer(src))