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regex extract domain from url
You can use regular expressions (regex) to extract the domain from a URL by matching the pattern of a typical URL and capturing the domain part. Here is an example of how to extract the domain using Python:
pythonimport re url = "https://www.example.com/path/to/page.html" match = re.search(r"https?://([^/]+)", url) domain = match.group(1) print(domain) # output: www.example.com
Explanation:
- The regex pattern
https?://([^/]+)
matches a string starting with “http://” or “https://”, followed by one or more characters that are not a forward slash (i.e. the domain name), and captures this group. - The
re.search()
function searches theurl
string for a match to the regex pattern. - The
match.group(1)
method returns the captured group (i.e. the domain name).
Note: This regex pattern may not work for all types of URLs, particularly those with unusual formats or non-standard characters.
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Regex domain from url
To extract the domain name from a URL using regular expressions (regex), you can use the following pattern:
ruby^(?:https?:\/\/)?(?:[^@\n]+@)?(?:www\.)?([^:\/\n]+)
This pattern matches the beginning of the string, optional “http://” or “https://”, an optional username and password separated by “@” (which is not included in the matched group), an optional “www.” prefix, and then captures the domain name.
Here’s a breakdown of the pattern:
^
matches the start of the string(?:https?:\/\/)?
matches an optional “http://” or “https://”(?:[^@\n]+@)?
matches an optional username and password separated by “@”(?:www\.)?
matches an optional “www.” prefix([^:\/\n]+)
matches and captures the domain name, which consists of one or more characters that are not a colon, forward slash, or newline.
Here’s an example of how to use this pattern in Python:
pythonimport re url = 'https://www.example.com/path/to/page.html' pattern = r'^(?:https?:\/\/)?(?:[^@\n]+@)?(?:www\.)?([^:\/\n]+)' match = re.search(pattern, url) if match: domain = match.group(1) print(domain) # Output: example.com
Regex get domain name from URL
You can use regular expressions (regex) to extract the domain name from a URL. Here’s an example in Python:
pythonimport re url = 'https://www.example.com/path/to/page.html' match = re.search(r'https?://([^/]+)', url) if match: domain = match.group(1) print(domain) # Output: www.example.com
Explanation of the regex pattern:
https?://
: Matches the start of the URL, including thehttp://
orhttps://
protocol.([^/]+)
: Matches one or more characters that are not a forward slash/
, which represents the domain name.
The parentheses around [^/]+
create a capturing group, which we can retrieve using the group()
method on the match object. The argument 1
to group()
specifies that we want the first capturing group, which contains the domain name.
Note that this regex pattern assumes that the URL is in a standard format with the protocol and domain name separated by ://
. If you need to handle more complex URLs, you may need to adjust the pattern accordingly.
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