Replace part of string matched with RegEx [duplicate]

Question

I have some regex to match Imgur URLS (I think it's right, please tell me if it's not):

http://(?:i\.imgur\.com/(?.*?)\.(?:jpg|png|gif)|imgur\.com/(?:gallery/)?(?.*))$

What I want to do, is search a document for instances that match that regex, but the replace the string imgur without changing anything around it. How can I do this with Javascript?

Both of those just discuss matching URLs, rather than replacing a substring of them — Benedict Lewis
– Benedict Lewis, Commented Jun 3, 2014 at 4:29
FYI Added variation at the bottom to handle your revised specs. — zx81
– zx81, Commented Jun 3, 2014 at 6:23

DrewSSP · Accepted Answer · 2014-06-03 04:16:06Z

1

You could use javascript's replace method.

Just use the regex \imgur\g as the parameter to replace.

See examples at http://www.w3schools.com/jsref/jsref_replace.asp. You will likely want to see the first one in the "More examples" section.

answered Jun 3, 2014 at 4:16

DrewSSP

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1 Comment

Benedict Lewis Over a year ago

I don't want to match imgur when it is not used in the context of a URL. So for example, the sentence "Click here to visit Imgur" should not change.

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