Allow to provide test cases that must not be matched

[pemistahl]

Currently, only test cases that must be matched by the generated regular expression can be provided. It would be useful to additionally provide test cases that must not be matched by the generated expression. In combination with shorthand character classes this would allow for more specific and versatile regular expressions.

[crispamares]

First I want to say thank you for this wonderful library, super interesting.

Shomehow realted to this... how feasible would be to provide "matching text + context" so the regex can generalize?

Imagine a user has a collection of texts like this, one line is one different text:

[one, two, three]
[blue, brown]
[car, house]
[ball, cat]
...

I would like to make a toy UI where the user can select with the mouse just "one" and "blue" so the system could return:

one
blue
car
ball
...

That would be possible if grex could generate a regex like this: \[(\w+),. Obviously grex needs to be provided with more than just matching examples but also context that is useful for the regex but not for the user.

[pemistahl]

Thanks for your idea @crispamares. There is actually a lot of potential in a tool like this. I don't know yet what to implement for the next version but I will keep your suggestion in mind.