pattern = r"https?://([\w-.]+)"
I wondering about this regex “([\w-.]+)”
can anyone help to make me understand?
Can you help us understand your question?
Sorry. I tried to understand this regex as below when I learned that course.
Can you help me to explain it?
pattern = r"https?://([\w-.]+)"
I don’t understand r"https?://([\w\-\.]+)" the bold characters
\w is shorthand for [a-zA-Z0-9_] and \- matches a dash (-) and \. matches a dot (.), all 3 of which are commonly use in urls (and we can combine them into \w-..
The + in regex matches a string that contains one or more of the symbols contained within [a-zA-Z0-9_].
The square brackets are a character class as mentioned in the article above.
We will still need to include the word boundary to be match (i.e., the rounded brackets ( and )).
I suggest you revisit the lesson again and check out the documentation if you have any other doubts.
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