Using regex to filter a URL list

Question

I'm trying to use regex to filter a list of site that doesn't include a specific word.

For example from the list below, i want to filter all sites with the word test and empty strings so the final output that I'll get is http://example.com. I tried to use ^((?!test).)* but that doesn't filter empty strings. Maybe there is a better way to filter them? Thanks.

http://test1.com
http://test2.com
*empty string*
http://example.com

You can use: ^(?!.*test).+

anubhava
– anubhava

2017-06-08 14:58:28 +00:00
Commented Jun 8, 2017 at 14:58 — anubhava
– anubhava, Commented Jun 8, 2017 at 14:58

anubhava · Accepted Answer · 2017-06-08 14:59:36Z

1

You need to use a negative lookahead and .+ in your regex as this:

^(?!.*test).+

RegEx Demo

answered Jun 8, 2017 at 14:59

anubhava

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