filter_spirit VS cpp-peglib

While I do like projects like this in this case I think I like the way filter spirit solved it more. I can do something like:

This looks like a great collection of ideas, many of which I have already implemented in my own filter-generating tool (which compared to yours is more advanced on the internal feature side but has basic CLI + terrible UI). I think we could collaborate to create something together (I could already mention many possible features - poe.ninja-based generation, filter template description language, color/strictness presets). I have large amounts of notes from working with filters (many not published on my github project).

You might be interested in https://github.com/Xeverous/filter_spirit/blob/master/doc/user/actual_filter_quirks.md

I used yhirose's PEG (parsing expression grammar) libraryfor parsing.

By the same author, https://github.com/yhirose/cpp-peglib is also very nice.

Most of the research into this sort of incremental and differential parsing unsurprisingly looks to be in the Haskell community, but I was hoping that someone here might know of some C++-friendly tools that might support generating parsers that support interruption and resuming. cpp-peglib looked really promising, but its parsers don't look like they can be engaged from any but the initial state.