Brute-force unicode text search in python

brute_unicode_search.py

#!/usr/bin/env python 
# -*- coding: UTF-8 -*-

# Resources:
# https://unicode-table.com/en/#latin-1-supplement
# http://www.umich.edu/~umfandsf/other/ebooks/alice30.txt

control_chars = [ unichr(i) for i in xrange(0, 32) ]
basic_latin = [ unichr(i) for i in xrange(32, 128) ]
latin_1_supplement = [ unichr(i) for i in xrange(128, 256) ]

unicode_table = control_chars + basic_latin + latin_1_supplement

assert len(unicode_table) == 256

# O(256n)
def search_text(text):
	utf8chars = [ unichar.encode('utf-8') 
					for char in text 
					for unichar in unicode_table 
					if char == unichar ]
	return ''.join(utf8chars)

# Test single word
word = u'unicórnio.'
result = search_text(word)
print word, result

# Test alice text file
import codecs, time
with codecs.open("alice30.txt", "r", "utf-8") as alice30:
	text = alice30.read()
	print len(text)
	start_time = time.time()
	result = search_text(text)
	print("%d --- %s seconds" % (len(result), time.time() - start_time))