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[utils] Fix js_to_json

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Previously, the runtime could be atrocious for longer inputs.
This commit is contained in:
Philipp Hagemeister
2015-02-18 23:59:50 +01:00
parent 85d5866177
commit d305dd73a3
2 changed files with 6 additions and 2 deletions
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4
test/test_utils.py
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@@ -370,6 +370,10 @@ class TestUtil(unittest.TestCase):
"playlist":[{"controls":{"all":null}}] "playlist":[{"controls":{"all":null}}]
}''') }''')
inp = '"SAND Number: SAND 2013-7800P\\nPresenter: Tom Russo\\nHabanero Software Training - Xyce Software\\nXyce, Sandia\\u0027s"'
json_code = js_to_json(inp)
self.assertEqual(json.loads(json_code), json.loads(inp))
def test_js_to_json_edgecases(self): def test_js_to_json_edgecases(self):
on = js_to_json("{abc_def:'1\\'\\\\2\\\\\\'3\"4'}") on = js_to_json("{abc_def:'1\\'\\\\2\\\\\\'3\"4'}")
self.assertEqual(json.loads(on), {"abc_def": "1'\\2\\'3\"4"}) self.assertEqual(json.loads(on), {"abc_def": "1'\\2\\'3\"4"})

4
youtube_dl/utils.py
View File

@@ -1560,8 +1560,8 @@ def js_to_json(code):
return '"%s"' % v return '"%s"' % v
res = re.sub(r'''(?x) res = re.sub(r'''(?x)
"(?:[^"\\]*(?:\\\\|\\")?)*"| "(?:[^"\\]*(?:\\\\|\\['"nu]))*[^"\\]*"|
'(?:[^'\\]*(?:\\\\|\\')?)*'| '(?:[^'\\]*(?:\\\\|\\['"nu]))*[^'\\]*'|
[a-zA-Z_][.a-zA-Z_0-9]* [a-zA-Z_][.a-zA-Z_0-9]*
''', fix_kv, code) ''', fix_kv, code)
res = re.sub(r',(\s*\])', lambda m: m.group(1), res) res = re.sub(r',(\s*\])', lambda m: m.group(1), res)