specter VS nom

> Another example is Specter. Specter is a generically useful library for querying and manipulating data structures

> https://github.com/redplanetlabs/specter/tree/master/src

> MutableCell.Java. 8 years ago

  package com.rpl.specter;

If you are truly interested in understanding my point of view -- a great way to do it would be to learn how to use this Clojure DSL: https://github.com/redplanetlabs/specter

For deeply nested data, use specter https://github.com/redplanetlabs/specter

Yes :), I needed a fast dijkstra implementation to solve a puzzle in 2021. A pure clojure implementation was too slow so i built one on top of this https://github.com/redplanetlabs/specter

https://github.com/redplanetlabs/specter (very powerful way to express modifications to nested data)

Don't forget about specter which is efficient and compact due to its DSL.

Learn and use specter for nested data manipulation, will take some studying but is a more general solution (https://github.com/redplanetlabs/specter)

For part 1, the version (and other things) are attached to the metadata of each sexp, and a Specter recursive path is used to extract all of the versions.

Just in case you are not familiar with nom, it is a parser combinator written in Rust. The most basic thing you can do with it is import one of its parsing functions, give it some byte or string input and then get a Result as output with the parsed value and the rest of the input or an error if the parser failed. tag for example is used to recognize literal character/byte sequences.

I may be the only one not familiar, but nom refers to https://github.com/rust-bakery/nom which looks like a pretty handy way to parse binary data in Rust.

Lots of people use nom for their parsing needs, but that's not the only game in town and there other options.

As much as I love nom as well as other parser combinator libraries, regex-based parsers, BNF/EBNF-based parsers, etc. I always end up going back to plain old text-based char-by-char scanners.

I am using nom / nom_locate to build the parser side because I've done a handful of other projects with it, and I plan to use tower-lsp to hook up the language server side.

Look into a parsing library such as https://github.com/rust-bakery/nom

If we were in /r/learnrust I'd have recommended the nom crate for this.

Thanks to the flexibility of [nom](https://github.com/rust-bakery/nom), it is very easy to write your own parser in rust, read [this article](https://github.com/metaworm/luac-parser-rs/wiki/Write-custom-luac-parser) to learn how to write a luac parser

I've been working on an assembler and right now it uses nom. While nom isn't great for error messages, good error messages will be important for this particular assembler (current code), so I've been attempting to use the methods described by Eyal Kalderon in Error recovery with parser combinators (using nom).