Is there a version of a TOML parser for Arduino?

[Alacritous]

I took a stab at getting it to run in the Arduino IDE but I just don't know enough.

[ToruNiina]

For toml11, there isn't.
Actually, I'm not familiar with Arduino, so I totally don't have any idea about this. Sorry.

If you have any idea to get rid of the difficulty, PRs and suggestions are welcome.

[Alacritous]

I was just curious. I don't have the skill to make something of that nature myself. Otherwise I would have. I just stumbled across TOML and I like its features and when I looked around I didn't see arduino support. Arduino uses C++ but I don't know enough about the differences in infrastructure to be able to port something like this to it.

[cr1tbit]

Well I do have some skills, just enough to make it work, not wholly understanding the process though 😅

Some tips for people stumbling across this - i used platformio with Arduino framework to make it work:

1. Arduino core for esp32 uses GCC 8.4.0, which could not compile the library at the start. I had to provide a little patch (branched from 3.7.0, I don't think worth merging upstream)

cr1tbit@cbd4df7

2. This library is enormous (measuring in code size) compared to usual arduino libraries, in my case the compiled binary wouldn't fit into the default flash layout (with 2 flash banks for OTA update). Can be fixed by setting:

board_build.partitions = huge_app.csv

3. Tomls tend to be big. The main arduino setup-loop has stack size only 8k or so, and it's hardcoded into arduino core. In my case I moved toml config handling to a separate task like this:

    xTaskCreate( TomlTask, "toml task",
      65536, NULL, 6, NULL );

4. Platformio can natively include this lib, by simply putting it as one of the dependencies. You can do it like this (my fork compiles fine)

lib_deps = 
        [...]
        https://github.com/cr1tbit/toml11.git#cbd4df71a9f853c50baeedf31c9a106e11409a19

https://github.com/cr1tbit/antController-fw for reference how to make it work