Regular expression to find lines not containing a certain word

Question

I would like to find all occurrences of the below pattern.

import com.pack1.pack2.blah1.className1 ;
import com.pack1.pack2.blah2.className2 ;
import com.pack1.DifferentPackage.blah3.className3 ;

I want to find all import statements which will match the third line.

Something like below

import com.pack1.!(pack2).*

I tried a few examples from tutorials - but couldn't achieve the objective.

hwnd · Accepted Answer · 2014-07-13 17:04:07Z

4

You are looking for a Negative Lookahead here.

import com\.pack1\.(?!pack2\b).*

Live Demo

The word boundary \b asserts that on one side there is a word character, and on the other side there is not. Also since you state you are looking for lines, you may want to add beginning of string ^ and end of string $ anchors.

^import com\.pack1\.(?!pack2\b).*$

edited Jul 13, 2014 at 17:04

answered Jul 13, 2014 at 6:36

hwnd

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4 Comments

Harpreet Singh Over a year ago

+1, It cleared My doubts about Negative - lookarounds

l'L'l Over a year ago

how about import com.pack1.pack20.blah1.className3 ;

lives Over a year ago

Thanks . I will try this - That would really save a lot of time for me.

lives Over a year ago

I tried this using the regex search in TextPad editor - it did not work . I will check what version of regex is being used . I searched for the string "import com\.pack1\.(?!pack2\b).*" - Should I do something else ?

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