[Feture Request] Integration with CTRE

[cgbsu]

CTRE is a dedicated Compile Time Regex library, as such it seems to have more regex features, and supports unicode, would it be possible to integrate it into CTPG?

[peter-winter]

It is already possible to use an external lexer (in fact regex parser in ctpg already uses an external lexer and ctpg generated parser), but the feature is not documented at all yet.
So it is possible to use CTRE.
Maybe a slight adjustment would be necessary but this shouldn't be to hard to expose external lexer as an official feature.
This is definitely something I would like to add in near future.

If you feel adventurous examine the regex::regex_lexer class and the use_lexer struct.

[peter-winter]

I forgot there is actually an example: custom-lexer.cpp

[peter-winter]

The custom lexer is now an official feature, you can easily integrate ctre.