scnlib VS cpp-peglib

scnlib (https://github.com/eliaskosunen/scnlib) scanf

include(FetchContent) FetchContent_Declare( Catch2 GIT_REPOSITORY https://github.com/catchorg/Catch2.git GIT_TAG v3.0.0-preview4 ) FetchContent_Declare( fmt GIT_REPOSITORY https://github.com/fmtlib/fmt.git GIT_TAG 9.1.0 ) FetchContent_Declare( scnlib GIT_REPOSITORY https://github.com/eliaskosunen/scnlib.git GIT_TAG v1.1.2 ) FetchContent_MakeAvailable(Catch2 fmt scnlib)

Yeah, but parsing format strings in runtime induces an overhead, and doing it in compile time is not trivial, and I’m not sure ClearIO is worth the trouble, since it turns out scnlib exists.

The code is rather nice (in my biased opinion) and makes heavy use of a couple of libraries like scnlib and [Eigen](eigen.tuxfamily.org/). Some things could probably be more optimized but I mainly focused on conciseness. I hope this is useful and I can explain my thought process further if you have any questions.

I've found https://github.com/eliaskosunen/scnlib but haven't tested it. Maybe that suits your needs for 2.

I had a user enum like enum class Color {Red, Green, Blue}; that I wanted to add serialization support for. Following the docs (https://scnlib.readthedocs.io/), after some tweaks I arrived at the following:

Thanks for the comment, I made an issue tracking this: https://github.com/eliaskosunen/scnlib/issues/51

I am using some modern libraries: scnlib fmtlib Eigen and usually abuse lambdas :)

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.