I already copied a regex expression from somewhere like this:
^(\*|http|https|file|ftp|ws|wss|data):\/\/(\*|(?:\*\.)?(?:[^*]+))?\/(.*)$
It can match URL patterns like https://www.google.com/ or https://*.google.com/, I want to support to reach https://www.google.*/, how could I change the regex?
^(\*|http|https|file|ftp|ws|wss|data):\/\/(\*|(?:\*\.)?(\*|(?:[^*]+)))?\/(.*)$
Related
this is a regex of a proxy, if I add this to my proxy:
(.*\.|)(abc|google)\.(org|net)
my proxy will not transmit the abc.org, abc.net, google.org, google.net's traffic.
how can I write a regex opposite to this regex? I mean only transmit the abc.org, abc.net, google.org, google.net's traffic.
EDIT-01
My thought is just want to transmit abc.org or www.abc.org, how can I do with that?
Try this:
^(?!(www\.)?(?:abc|google)\.(?:net|org)).*
Demo: https://regex101.com/r/WOnFx8/3/
I used ?! to reverse the matching of your regex. This way, it will match any domain except these specific 4 domains.
Another way to do it is by using this code to include anything before the desired domains:
^(?!(.*\.|)(?:abc|google)\.(?:net|org)).*
demo: https://regex101.com/r/WOnFx8/4/
Your regex you write
(.*\.|)(abc|google)\.(org|net)
mean any string is one of abc.org, gooogle.org, abc.net, google.net, with optional prefix string ends with dot (.)
Like: test.google.org, sub.abc.net,...
I think you want to match string like test.yahoo.com, but not test.google.org. If you can use negative look ahead, this is the answer:
^(.*\.|)(?!(abc|google)\.(org|net))\w+\.\w+$
Explain:
^ and $ to be sure your match is entire url string
Negative look ahead is to check the url is not something like abc.org, abc.net, google.org, google.net
And \w+\.\w+ to check the remain string is kind of URL type (something likes yahoo.com, etc...)
Im going to assume you have lookaheads, if so then you can simply use -
(^.*?\.(?!(abc|google))\w+\.(?:org|net)$)
Demo - https://regex101.com/r/5eC41R/3
What this does is -
Looks for the start of the url (till the first .)
Checks that next part is not abc or google
looks for the next section (till the next .)
Looks for a closing org or net
Note that since it is a lookahead it will be slow compared to other regex matches
I am trying to make a if/then condition to match the url, but I can't seem to get it to work. I am trying to match URLs and then capture the non-optional group. So - if a url comes in like this:
/en/testing.aspx
I want to capture /testing.aspx
if the url comes in like this:
/testing.aspx
I want to capture /testing.aspx
Is there an easy way to do this using regex?
EDIT:
The Url can be multi-part url, like /en/sub1/sub2/testing.aspx - I essentially want everything after "/en/".
use regex \/en(\/.+)$
Check this out
edited
https://regex101.com/r/lwowhi/6
If there is "/en/" in the URL and you still want to capture /testing.aspx then here is an edit (?:\/en)*(\/.+)$
https://regex101.com/r/lwowhi/8
You can use a greedy regex which will consume everything up until the final forward slash. Then, capture everything which comes after that point.
^.*?(?:\/en)?(\/.*)$
Demo
Guessing all pages are .aspx then use group.
regex: .(/..aspx)
this will match "/testing.aspx" in all bellow samples
/testing.aspx or
/en/testing.aspx or
www.abc.com/en-us/testing.aspx
im using crawler4J , and i want to make some patterns to urls only but i couldn't solve regex for that url :
http://www.site.com/liste/product_name_changable/productDetails.aspx?productId={id}&categoryId={category_id}
i try that :
liste\/*\/productDetails:aspx?productId=*&category_id=*
and
private final static Pattern FILTERS = Pattern.compile("^/liste/*/productDetails.aspx?productId=*$");
but it's not working.
how can i make it regex pattern ?
You have several errors in your regex. All of the asterixes should be .+, to indicate that you want to match at least one or more character. The question mark symbol needs to be escaped. category_id should be categoryId. productDetails:aspx should be productDetails.aspx. With all of these fixes, the regex looks like this:
liste\/.+\/productDetails\.aspx\?productId=.+&categoryId=.+
Also, you shouldn't have ^ or $ at the start and end of the regex. Those match the start and end of the input, so they won't work if you're trying to get a portion of the url, which you are.
I'm trying to make a regular expression for an URL so that it affects everything except a certain folder. The regex will only apply to everything after the '/', so given an url the url http://www.blah.com/folder/main/file.html, it will apply only to folder/main/file.html - the regex expression I want is the expression that will basically match always when there is no 'folder/' in the url.
You can use negative lookahead. For example this:
^(.(?!folder/))*$
will match anything which does not contain 'folder/'
I have the following regex that attempts to match URLs:
/((http|https):(([A-Za-z0-9$_.+!*(),;/?:#&~=-])|%[A-Fa-f0-9]{2}){2,}(#([a-zA-Z0-9][a-zA-Z0-9$_.+!*(),;/?:#&~=%-]*))?([A-Za-z0-9$_+!*();/?:~-]))/g
How can I modify this regex to only match URLs of a single domain?
For example, I only want to match URLs that begin with http://www.google.com?
This should simplify my regex, but I'm too much of a regex noob to get it working (after all these years...)
Did you write that RegEx? I don't know what it's trying to do, but it certainly doesn't match URLs correctly. Here's something it matches:
http:###9#?~
which I'm pretty sure isn't a valid URL.
You shouldn't be using RegEx to match URLs like this. You haven't said what language you're working in, but use whatever its equivalent of urlparse is..
Here's a relevant question: How do you validate a URL with a regular expression in Python?