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[utils] Merge base_n functions

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This commit is contained in:
Yen Chi Hsuan
2016-02-26 14:37:20 +08:00
parent 8f4a2124a9
commit 59f898b7a7
3 changed files with 11 additions and 13 deletions
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16
youtube_dl/utils.py
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@ -2621,19 +2621,17 @@ def ohdave_rsa_encrypt(data, exponent, modulus):
return '%x' % encrypted
def base_n(num, n, table):
def base_n(num, n, table=None):
if num == 0:
return '0'
FULL_TABLE = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
assert n <= len(FULL_TABLE)
if not table:
table = FULL_TABLE[:n]
ret = ''
while num:
ret = table[num % n] + ret
num = num // n
return ret
def base36(num):
return base_n(num, 36, '0123456789abcdefghijklmnopqrstuvwxyz')
def base62(num):
return base_n(num, 62, '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')