How Java regex match for non-subsequence string?

Question

Example:

String url = "http://www.google.com/abcd.jpg";
String url2 = "http://www.google.com/abcd.jpg_xxx.jpg";

I want to match "http://www.google.com/abcd" whatever url or url2.

I write a regex:

(http://.*\.com/[^(.jpg)]*).jpg

But [^(.jpg)]* doesn't like correct. What the regex should be?

anubhava · Answer 1 · 2012-10-23T09:43:02.450

0

Forward slash need to be escaped as well. Use this regex:

^(http:\/\/.+?\.com\/[^.]+)\.jpg

edited Oct 23 '12 at 09:43

answered Oct 23 '12 at 09:34

anubhava

Sorry had an unnecessary `$` corrected it now. Please check now or see live demo: http://www.rubular.com/r/cxgCHLDNAr – anubhava Oct 23 '12 at 09:43
another question, if I want to match any substring except 'abc', what can I write? – Hesey Oct 23 '12 at 09:47
You can use negative lookahead for that e.g.: `(?!abc).*` Read more about lookaheads here: http://www.regular-expressions.info/lookaround.html – anubhava Oct 23 '12 at 09:50
or here http://stackoverflow.com/questions/406230/regular-expression-to-match-string-not-containing-a-word – Sergey Passichenko Oct 23 '12 at 09:52

score 0 · Answer 2 · answered Oct 23 '12 at 09:43

0

Reluctant quantifier .*? matches to first ".jpg":

(http:\/\/.*\.com\/.*?)\.jpg.*

answered Oct 23 '12 at 09:43

2 Answers2