How To Parse Maven Dependencies With Or Without Versions Declared Using Notepad++ - regex

Question

I'm trying to parse a list of maven dependencies and display it in a simpler format. Specifically I'm trying to convert the standard maven xml of:
<dependency>
<groupId>groupId1</groupId>
<artifactId>artifactId1</artifactId>
<version>version1</version>
</dependency>
To something like this:
groupId1:artifactId1:version1
The poms I'm working with are sorted by sortpom-maven-plugin, so I can assume the order to always be groupId, artifactId, version; but I can't assume the version will always be there, or that there won't be other configurations for the dependency.
That means something like the following could be possible:
<dependency>
<groupId>groupId1</groupId>
<artifactId>artifactId1</artifactId>
<version>version1</version>
</dependency>
<dependency>
<groupId>groupId2</groupId>
<artifactId>artifactId2</artifactId>
</dependency>
<dependency>
<groupId>groupId3</groupId>
<artifactId>artifactId3</artifactId>
<version>version3</version>
</dependency>
<dependency>
<groupId>groupId4</groupId>
<artifactId>artifactId4</artifactId>
<version>version4</version>
<exclusions>
<exclusion>
<groupId>groupId4</groupId>
<artifactId>artifactId4</artifactId>
</exclusion>
</exclusions>
</dependency>
I have been using Notepad++ to try and parse these dependencies with regular expressions, and my best effort has come up with the following:
With Search Mode set to Regular Expression and match newlines selected I search for the following:
.*?<dependency>.*?<groupId>(.*?)</groupId>.*?<artifactId>(.*?)</artifactId>.*?<version>(.*?)</version>.*?</dependency>.*?\R*
and replace with:
\1:\2:\3
Unfortunately this does not cover the case of an omitted version, so the following
<dependency>
<groupId>groupId2</groupId>
<artifactId>artifactId2</artifactId>
</dependency>
<dependency>
<groupId>groupId3</groupId>
<artifactId>artifactId3</artifactId>
<version>version3</version>
</dependency>
Would be transformed to:
groupId1:artifactId1:version2
When ideally I would like to see it converted to something like this:
groupId1:artifactId1
groupId2:artifactId2:version2
Would anyone have suggestions on improving my regular expression? It doesn't have to be a single regular express either. If running sequential expressions will ultimately transform the dependencies into the desired format that's ok.

Answer 1

1st replacement
Find what:
<([^>]+)>([^<]+)</\1>(?:(?!\s*</)\s*)?
Replace with:
\2:
That will result in almost what you want: groupId1:artifactId1:version1:
2nd replacement
To remove the trailing ":", Find what:
:\s*?$
Replace with:
{leave empty}