Support other RegEx flavours.

[gskinner]

Support other RegEx flavours.

[gskinner]

Anyone following this issue, may be happy to see the work going on in the new flavours branch:
https://github.com/gskinner/regexr/tree/flavours

Still early, but it's coming together fairly quickly, and I'm committed to getting it done. We have roughed in PCRE support (mostly just for our own testing at present), and got about half the work done for updating the lexer. I'll try to update here as new things roll in.

[gskinner]

Supported in v3.0

[YKubi]

Anyone following this issue, may be happy to see the work going on in the new flavours branch:
https://github.com/gskinner/regexr/tree/flavours

The link is broken 😞 .
Would love to see support for .Net RegEx.

[gskinner]

v3.0 has full support for PCRE, and an extensible model for adding other flavors.

I think our next target with be XRegExp (see #110), since it's an easy win that doesn't require server support, and then we'll look at the potential for other server based flavors.

[isonno]

Would love to see support for Python's RegEx.

[gskinner]

1. As a fairly easy first step towards this, we could implement the feature map for documentation, and have it hide / mark lookbehind, which is already in the docs, but not supported in JS.
2. As a follow up, we could then add the feature map to the lexer, which also already supports detecting lookbehind.
3. The next step would perhaps be supporting AS3, simply because it is a fairly limited superset of the JS features, and is synchronous.
4. Then tackle asynchronous (server side) flavours, and add feature support iteratively.

[ivangretsky]

This is very useful feature. I've seen it implemented here.