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	Remove youtube_genalgo (#1515)
With the automatic signature extraction, this script has become superfluous now
This commit is contained in:
		@@ -1,116 +0,0 @@
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#!/usr/bin/env python
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# encoding: utf-8
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# Generate youtube signature algorithm from test cases
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import sys
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tests = [
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    # 93 - vfl79wBKW 2013/07/20
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    (u"qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[]}|:;?/>.<'`~\"€",
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     u".>/?;:|}][{=+-_)(*&^%$#@!MNBVCXZASDFGHJKLPOIUYTREWQ098765'321mnbvcxzasdfghjklpoiu"),
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    # 92 - vflQw-fB4 2013/07/17
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[]}|:;?/>.<'`~\"",
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     "mrtyuioplkjhgfdsazxcvbnq1234567890QWERTY}IOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[]\"|:;"),
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    # 91 - vfl79wBKW 2013/07/20 (sporadic)
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[]}|:;?/>.<'`~",
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     "/?;:|}][{=+-_)(*&^%$#@!MNBVCXZASDFGHJKLPOIUYTREWQ09876543.1mnbvcxzasdfghjklpoiu"),
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    # 90
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[]}|:;?/>.<'`",
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     "mrtyuioplkjhgfdsazxcvbne1234567890QWER[YUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={`]}|"),
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    # 89 
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[]}|:;?/>.<'",
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     "/?;:|}<[{=+-_)(*&^%$#@!MqBVCXZASDFGHJKLPOIUYTREWQ0987654321mnbvcxzasdfghjklpoiuyt"),
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    # 88 - vflapUV9V 2013/08/28
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[]}|:;?/>.<",
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     "ioplkjhgfdsazxcvbnm12<4567890QWERTYUIOZLKJHGFDSAeXCVBNM!@#$%^&*()_-+={[]}|:;?/>.3"),
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    # 87
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$^&*()_-+={[]}|:;?/>.<",
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     "uioplkjhgfdsazxcvbnm1t34567890QWE2TYUIOPLKJHGFDSAZXCVeNM!@#$^&*()_-+={[]}|:;?/>.<"),
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    # 86 - vflHql6Pr 2013/09/24
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[|};?/>.<",
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     ";}|[{=+-d)(*&^%$#@!MNBVCXZASDFGHJKLPOIUYT_EWQ0987654321mnbvcxzas/fghjklpoiuytrewq"),
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    # 85 - vflkuzxcs 2013/09/11
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    ('0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;<=>?@[',
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     '3456789a0cdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRS[UVWXYZ!"#$%&\'()*+,-./:;<=>?@'),
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    # 84 - vflHql6Pr 2013/09/24 (sporadic)
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[};?>.<",
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     "}[{=+-_)g*&^%$#@!MNBVCXZASDFGHJKLPOIUYTRE(Q0987654321mnbvcxzasdf?hjklpoiuytrewq"),
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    # 83
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!#$%^&*()_+={[};?/>.<",
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     ".>/?;}[{=+_)(*&^%<#!MNBVCXZASPFGHJKLwOIUYTREWQ0987654321mnbvcxzasdfghjklpoiuytreq"),
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    # 82 - vflGNjMhJ 2013/09/12
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKHGFDSAZXCVBNM!@#$%^&*(-+={[};?/>.<",
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     ".>/?;}[<=+-(*&^%$#@!MNBVCXeASDFGHKLPOqUYTREWQ0987654321mnbvcxzasdfghjklpoiuytrIwZ"),
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    # 81 - vflLC8JvQ 2013/07/25
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKHGFDSAZXCVBNM!@#$%^&*(-+={[};?/>.",
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     "C>/?;}[{=+-(*&^%$#@!MNBVYXZASDFGHKLPOIU.TREWQ0q87659321mnbvcxzasdfghjkl4oiuytrewp"),
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    # 80 - vflZK4ZYR 2013/08/23 (sporadic)
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKHGFDSAZXCVBNM!@#$%^&*(-+={[};?/>",
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     "wertyuioplkjhgfdsaqxcvbnm1234567890QWERTYUIOPLKHGFDSAZXCVBNM!@#$%^&z(-+={[};?/>"),
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    # 79 - vflLC8JvQ 2013/07/25 (sporadic)
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKHGFDSAZXCVBNM!@#$%^&*(-+={[};?/",
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     "Z?;}[{=+-(*&^%$#@!MNBVCXRASDFGHKLPOIUYT/EWQ0q87659321mnbvcxzasdfghjkl4oiuytrewp"),
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]
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tests_age_gate = [
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    # 86 - vflqinMWD
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    ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[|};?/>.<",
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     "ertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!/#$%^&*()_-+={[|};?@"),
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]
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def find_matching(wrong, right):
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    idxs = [wrong.index(c) for c in right]
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    return compress(idxs)
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    return ('s[%d]' % i for i in idxs)
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def compress(idxs):
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    def _genslice(start, end, step):
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        starts = '' if start == 0 else str(start)
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        ends = ':%d' % (end+step)
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        steps = '' if step == 1 else (':%d' % step)
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        return 's[%s%s%s]' % (starts, ends, steps)
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    step = None
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    for i, prev in zip(idxs[1:], idxs[:-1]):
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        if step is not None:
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            if i - prev == step:
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                continue
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            yield _genslice(start, prev, step)
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            step = None
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            continue
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        if i - prev in [-1, 1]:
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            step = i - prev
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            start = prev
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            continue
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        else:
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            yield 's[%d]' % prev
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    if step is None:
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        yield 's[%d]' % i
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    else:
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        yield _genslice(start, i, step)
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def _assert_compress(inp, exp):
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    res = list(compress(inp))
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    if res != exp:
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        print('Got %r, expected %r' % (res, exp))
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        assert res == exp
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_assert_compress([0,2,4,6], ['s[0]', 's[2]', 's[4]', 's[6]'])
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_assert_compress([0,1,2,4,6,7], ['s[:3]', 's[4]', 's[6:8]'])
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_assert_compress([8,0,1,2,4,7,6,9], ['s[8]', 's[:3]', 's[4]', 's[7:5:-1]', 's[9]'])
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def gen(wrong, right, indent):
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    code = ' + '.join(find_matching(wrong, right))
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    return 'if len(s) == %d:\n%s    return %s\n' % (len(wrong), indent, code)
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def genall(tests):
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    indent = ' ' * 8
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    return indent + (indent + 'el').join(gen(wrong, right, indent) for wrong,right in tests)
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def main():
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    print(genall(tests))
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    print(u'    Age gate:')
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    print(genall(tests_age_gate))
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if __name__ == '__main__':
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    main()
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