正则表达式查找不包含特定单词的行

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.

Answer 1

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).*$