chumsky

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Option for `.padded()` to not include padding in resulting span

5

The following code prints out `0..3` which means that `.padded()` includes the padding in the span of the output. ``` let parser = just::("5").padded().map_with_span(|_, s: Span| s); let result =...

kevinbarabash

Implement Pratt parsing for binary infix operators.

3

I was having trouble parsing binary operators with deeply nested combinators to handle precedence. The Rust compiler time and memory usage grow exponentially until it runs out of memory for...

alvra

Add a `many_till` combinator

2

I propose a combinator that repeats the first parser until the second one matches. [nom](https://github.com/Geal/nom) has an equivalent combinator: https://docs.rs/nom/7.1.1/nom/multi/fn.many_till.html The output type would be `(Vec, B)`, `A` and `B`...

mwobat

Parsers don't do anything by themselves, so the `#[must_use]` attribute should probably be applied to them (as with `Iterator`).

zesterer

idiomatic way to express (optional) delimiters?

1

Hi again! I want to write a parser where the delimiters are optional. I tried the following: ```rust let lapp__ = expr .clone() .then_ignore(just(Token::Space)) .then_ignore(just(Token::RParen)) .then(expr.clone()); let lapp_ = choice((...

femtomc

Example of Python-like parsing

11

Having an example on how to parse Python-like languages that are aware of indentation would be interesting.

VinnyVicious

Explain the meaning of eoi in the Stream constructors

1

I don't really see why this parameter is needed, and as far as I'm aware the end of a set of disjoint ranges is a number and not a range,...

lbfalvy

Support for zero-copy parsing

19

This is now being developed in #82

zesterer

Recovery logic affects parsing of valid input

15

I would expect that adding recovery logic to a grammar doesn't functionally change the grammar, but currently it does: `repeated()` and `or_not()` (at least) with an inner that can recover...

jvanstraten

Missing documentation with example of the recovery system

4

AFAIK there's not a lot of documentation (except few lines), nor examples on how to use the recovery module and the `parse_recovery_*` functions https://docs.rs/chumsky/latest/chumsky/recovery/index.html Especially on the functions `nested_delimiters` `skip_then_retry_until`...

bew