def main():
n = 1
optlist, args = getopt.getopt(sys.argv[1:], "n:")
for opt, val in optlist:
if opt in ['-n']:
n = int(val)
for infile_name in args:
with open(infile_name, "r") as infile:
text = get_text(infile)
print("%s\n" % (''.join(text)))
split_text = [[] for i in range(n)]
for i, c in enumerate(text):
split_text[i % n].append(c)
for i, l in enumerate(split_text):
print("Position %d:" % (i))
print(" %s" % ("".join(l)))
dist = get_ngram_freqs(l, 1)
dist_l = [(dist[c], c) for c in dist]
dist_l.sort(reverse=True)
for ndx in range(min(5, len(dist))):
c = dist_l[ndx][1]
n_c = dist_l[ndx][0]
i_c = ascii_uppercase.index(c)
i_e = (i_c - 5) % len(ascii_uppercase)
print(" %s: %d %s" % (c, n_c, ascii_uppercase[i_e]))
def process_file(infile_name, key_len):
with open(infile_name, "r") as infile:
text = get_text(infile)
split_text = mod_split(text, key_len)
for i, seg in enumerate(split_text):
print("%d: %.5f" % (i, compute_coinicidence(seg)))
def main():
for infile_name in sys.argv[1:]:
print("\n%s:" % (infile_name))
with open(infile_name, "r") as infile:
text = [ascii_uppercase.index(c) for c in get_text(infile)]
for i in range(len(ascii_uppercase)):
shift_text = [(x - i) % len(ascii_uppercase) for x in text]
print(ascii_uppercase[i] + " (== %2d): " % (i) +
''.join([ascii_uppercase[i] for i in shift_text]))
def process_file(infile, key_len):
text_nums = numberize_text(get_text(infile))
split_nums = mod_split(text_nums, key_len)
format_str = " ".join(["%.5f"] * key_len)
for k_i in range(len(ascii_uppercase)):
curr_split = [shift_text_nums(l, -k_i) for l in split_nums]
coincs = []
for l in curr_split:
coinc = compute_coincidence_base(l)
coincs.append(coinc)
coinc_str = format_str % (tuple(coincs))
print("%s: %s" % ("%2d %s" % (k_i, ascii_uppercase[k_i]), coinc_str))
def process_file(infile_name):
with open(infile_name, "r") as infile:
text = get_text(infile)
text_str = ''.join(text)
n = 3
while True:
n_dist = get_ngram_freqs(text, n)
n_list = [g for g in n_dist if n_dist[g] > 1]
if len(n_list) > 0:
for g in n_list:
ndxs = [m.start() for m in re.finditer(g, text_str)]
diffs = [t[0] - t[1] for t in zip(ndxs[1:], ndxs)]
print("%s: %s" % (g, " ".join([str(d) for d in diffs])))
else:
break
n += 1
def main():
a = 1
b = 0
optlist,args = getopt.getopt(sys.argv[1:],"a:b:")
for opt,val in optlist:
if opt in ["-a"]:
a = int(val)
elif opt in ["-b"]:
b = int(val)
for infile_name in args:
with open(infile_name,"r") as infile:
text = get_text(infile)
text = [apply_affine(c,a,b) for c in text]
text = [ascii_uppercase[i] for i in text]
print("".join(text))
def main():
encipher = True
key = None
optlist, args = getopt.getopt(sys.argv[1:], "dk:")
for opt, val in optlist:
if opt in ["-d"]:
encipher = False
elif opt in ["-k"]:
key = val.upper()
for infile_name in args:
with open(infile_name, "r") as infile:
text = ''.join(get_text(infile))
if encipher:
print(vig_encipher(text, key))
else:
print(vig_decipher(text, key))
def test_get_text(self):
self.assertTrue(n.get_text("ideal_post")[:9] == 'attention')
def test_get_text(self):
self.assertTrue(n.get_text("ideal_post")[:9]=='attention')