Add compare only regex

[AlexVerschoot]

Settings
Added options to only compare regexes.
For this, i added settings to enable regex processing in the Engine + a text field where the regex lives.

Use case
In my field of work i often work with cnc machining nc codes, where it will come handy when comparing coordinates like the following.
The default compare :

With regex : X[0-9].?[0-9] (only compare x-coordinates) :

[pnedev]

Hi @AlexVerschoot ,

That is a very useful addition indeed, thank you for sharing it.

I will not merge it yet because I would like to finally release the first version of the new plugin (ComparePlus) without adding new functionality.
In the future I might use only parts of it because I actually had a different idea that is similar to yours but kind of opposite - to ignore the lines (or parts of lines) that match the regex. I planned it to be part of the "Ignore" options, something like "Advanced Ignore..." that opens new dialog where the user can choose different extended ignore conditions.

Anyway, I appreciate your contribution, thank you once again.

BR

[pnedev]

Hello @AlexVerschoot ,

I have added Advanced Ignore function to ComparePlus plugin that I'm about to release in a month. It gives the possibility to ignore regex-es.
Thank you once again for the PR 👍

BR