Visual parse tree

[oovm]

I find the visualization tools in ANTLRWorks very useful:

So I also wrote pest-viewer for pest:

It can render the following input into a tree diagram based on the pest grammar.

• input

{
    "integer": 1234567890,
    "real": 0.123456789e-12,
    "controls": "\b\f\n\r\t",
    "alpha": "abcdefghijklmnopqrstuvwyz",
    "ALPHA": "ABCDEFGHIJKLMNOPQRSTUVWYZ",
    "array": ["\"", "\\"]
}

• output

---

This tool is written in pure rust and can theoretically be compiled into wasm.

I'm not sure who is maintaining the web page now. I think it would be helpful for debugging to put this on the home page.

[tomtau]

Awesome work! 👏 Yes, it could be helpful to incorporate it in or link it on the main website. It's been primarily @nathanielknight @Jamalam360 @huacnlee @LeoDog896 who worked on the website recently.

[tomtau]

@oovm feel free to open a PR to add it to this list https://github.com/pest-parser/awesome-pest

[Jamalam360]

It should definitely be possible to get it working on the website if it outputs SVG and can compile to wasm!