Trying to figure out the regular expression to be used in Notepad++ where I can search the text below (as an example) and find the results in order.

Sample Text:


protocol to_nuance_orm_p5 {
{ HOST }
{ IPV4_V6_DUAL 0 }
{ PDLTYPE tcp-client }
{ PORT 9014 }

Desired result:

protocol to_nuance_orm_p5
PORT 9014
  • Please look at the preview before posting and use formatting, your question was completely unreadable before @snowdude fixed it. – gronostaj Jul 3 '14 at 9:58
  • 1
    Are those asterisks actually in your text or is it your formatting? – gronostaj Jul 3 '14 at 10:02
  • No, the asterisks are not in my code. I had it the way I did on purpose. I'll clean it up to the original. – Ron Ortiz Jul 7 '14 at 15:03

Following regex should work:

protocol [^ ]+|HOST \d+\.\d+\.\d+\.\d+|PORT \d+

I'm using Sublime Text to test it, but it should work in Notepad++ too.

Here's how it works: it's composed from three parts:

  • protocol [^ ]+
  • HOST \d+\.\d+\.\d+\.\d+
  • PORT \d+

| symbol means that any of those parts can be matched.

First part: protocol [^ ]+

protocol (including the space after l) simply matches the word protocol and following space. [^ ] matches one non-space character and + means to match one or more preceding symbols, so [^ ]+ will match one or more non-space symbols.

Second part: HOST \d+\.\d+\.\d+\.\d+

HOST matches text just like in the first part. Then there's \d which matches one digit and + which has the same meaning as above. \. will match regular dots. Unlike with letters, a dot has to be preceded with a backslash, because it has a special meaning in regular expressions.

Third part is even simplier than the second one, so I don't think explainations are necessary.

If you want to learn more about regular expressions, this tutorial is quite good and here's a good regex tester/debugger.

  • You should be experienced enough to know that such one-liners are frowned upon, in this site. Please explain, albeit briefly, why this is supposed to work. – MariusMatutiae Jul 7 '14 at 16:26
  • WOAH! Now that is slick!!! Looks beautiful! Thanks!!! – Ron Ortiz Jul 7 '14 at 19:34

If you just want to find all text in the format:

** TEXT ** 

try this:


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