finding the regex to get a url between two phrases
Question
I have the following script trying to get this url: https://clips-media-assets.twitch.tv/178569498.mp4 which is in between {"quality":"1080","source":" and a " but my regex doesn't seem to be working
dt = """
<body>
<script>jQuery(window).load(function () {
setTimeout(function(){s
}, 1000);quality_options: [{"quality":"1080","source":"https://clips-media-assets.twitch.tv/178569498.mp4","frame_rate":60},{"quality":"720","source":"https://clips-media-assets.twitch.tv/AT-178569498-1280x720.mp4","frame_rate":60},{"quality":"480","source":"https://clips-media-assets.twitch.tv/AT-178569498-854x480.mp4","frame_rate":30},{"quality":"360","source":"https://clips-media-assets.twitch.tv/AT-178569498-640x360.mp4","frame_rate":30}]
});</script>
</body>
[download] 28.2x of 57.90MiB at 1.54MiB/s ETA 00:26
"""
pattern = re.compile(r'(?:\G(?!\A)|quality\":\"1080\",\"source\":\")(?:(?!\").)*', re.MULTILINE | re.DOTALL)
clipHTML = BeautifulSoup(dt, "html.parser")
scripts = clipHTML.findAll(['script'])
for script in scripts:
if script:
match = pattern.search(script.text)
if match:
email = match.group(0)
print(email)
1 answers
solution1
4 2018-01-18 09:47:46
If you insist on using a regex to solve this, try this one (as shown here ):
(?<=quality\":\"1080\",\"source\":\")[^\"]+(?=\")
I don't know specifically about this case, but I have to mention that in general it's not ideal to parse JSON with regular expressions. Of course you can add dynamic-numbered spaces to the regex using ( *) , but still I think it's better to use a JSON parser.
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