From 81bdc8fdf6516b05bc3a26f82eacb1889f5e46d5 Mon Sep 17 00:00:00 2001
From: Yen Chi Hsuan <yan12125@gmail.com>
Date: Wed, 24 Feb 2016 22:08:40 +0800
Subject: [utils] Move base62 to utils

---
 youtube_dl/utils.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'youtube_dl/utils.py')

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index a3df90fad..d7a1586c0 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -2619,3 +2619,17 @@ def ohdave_rsa_encrypt(data, exponent, modulus):
     payload = int(binascii.hexlify(data[::-1]), 16)
     encrypted = pow(payload, exponent, modulus)
     return '%x' % encrypted
+
+
+def base_n(num, n, table):
+    if num == 0:
+        return '0'
+    ret = ''
+    while num:
+        ret = table[num % n] + ret
+        num = num // n
+    return ret
+
+
+def base62(num):
+    return base_n(num, 62, '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')
-- 
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