def test_huffman_5(self):
sent = 'StringTeessttt'; codes = dict(); root = huffman(sent)
for ch in sent:
codes[ch] = get_huffman_code(ch, root)
self.assertDictEqual(codes, {'S': '0100', 't': '11', 'r': \
'1001', 'i': '1011', 'n': '1000', 'g': '1010', 'T': '0101', \
'e': '011', 's': '00'})
def test_huffman_4(self):
sent = 'testing this string'; codes = dict(); root = huffman(sent)
for ch in sent:
codes[ch] = get_huffman_code(ch, root)
self.assertDictEqual(codes, {'t': '01', 'e': '10110', 's': '111', \
'i': '110', 'n': '100', 'g': '001', ' ': '000', 'h': '10111', \
'r': '1010'} )
def test_huffman_3(self):
sent = 'asdf;k;lkjasdfk'; codes = dict(); root = huffman(sent)
for ch in sent:
codes[ch] = get_huffman_code(ch, root)
self.assertDictEqual(codes, {'a': '100', 's': '011', 'd': '101', \
'f': '010', ';': '111', 'k': '00', \
'l': '1101', 'j': '1100'})
def test_huffman_2(self):
sent = 'asdf;k;lkjasdfk dasiirFFDg'; codes = dict(); root = huffman(sent)
for ch in sent:
codes[ch] = get_huffman_code(ch, root)
self.assertDictEqual(codes, \
{'a': '001', 's': '100', 'd': '010', 'f': '1011', \
';': '1101', 'k': '011', 'l': '11100', 'j': \
'11111', ' ': '11000', 'i': '000', 'r': '11101',\
'F': '1010', 'D': '11001', 'g': '11110'})
def compress_text(text, save=False, save_path=None):
huff_tree = huffman(text)
bit_dict = {}
bit_map(huff_tree, bit_dict, "")
res = process_bit_map(text, bit_dict)
if save:
file = open(save_path, "w")
file.write(res)
file.close()
return process_bit_map(text, bit_dict)
def test_huffman_1(self):
sent = 'aaaaggccttt'
codes = dict()
root = huffman(sent)
for ch in sent:
codes[ch] = get_huffman_code(ch, root)
self.assertDictEqual(codes, {
'a': '0',
'g': '111',
'c': '110',
't': '10'
})
from huffman import *
letters = {}
tree = []
temp = []
L = raw_input('Enter text you wish to be encoded: ')
for i in L:
try:
letters[i] += 1
except KeyError:
letters[i] = 1
for j in letters.keys():
temp.append((letters[j],'',j))
tree = sorted(huffman(temp))
print tree
# -*- coding: koi8_u -*-
from huffman import *
a=huffman("all models are wrong but some are usefull")
a.encode()
a.print_tree()
a.decode()