Extracting CSS Selectors with Python Regex

Question

I'm trying to parse HTML and extract each CSS selector. The problem I'm running into is separating/splitting selectors when multiple are present under the same div class.

html = '<div class="col-xl-4 col-md-6"> <div class="card hover-translate-y-n3 hover-shadow-lg overflow-hidden"><div class="position-relative overflow-hidden">'

css = re.findall(r'(?:class=")([^"]*)', html)

Current Output: ['col-xl-4 col-md-6', 'card hover-translate-y-n3 hover-shadow-lg overflow-hidden', 'position-relative overflow-hidden']

Desired Output: ['col-xl-4', 'col-md-6', 'card', hover-translate-y-n3', 'hover-shadow-lg, 'overflow-hidden', 'position-relative', 'overflow-hidden']

First off, regex is generally not the correct tool to use for parsing HTML. Use an HTML parser instead. Second, why not just call [item.split() for item in current_results]? — MattDMo
– MattDMo, Commented Oct 15, 2022 at 0:44

Rahul K P · Accepted Answer · 2022-10-15 00:48:40Z

2

You can just alter your css with using split,

html = '<div class="col-xl-4 col-md-6"> <div class="card hover-translate-y-n3 hover-shadow-lg overflow-hidden"><div class="position-relative overflow-hidden">'
css = re.findall(r'(?:class=")([^"]*)', html)
css = [i for item in css for i in item.split()]

Output:

In [1]: print([i for item in css for i in item.split()])
['col-xl-4', 'col-md-6', 'card', 'hover-translate-y-n3', 'hover-shadow-lg', 'overflow-hidden', 'position-relative', 'overflow-hidden']

edited Oct 15, 2022 at 0:48

answered Oct 15, 2022 at 0:43

Rahul K P

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