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README: update progress

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Guillem L. Jara
2026-05-07 16:56:50 +02:00
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README.md
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@@ -6,19 +6,19 @@ This is a human, WIP, and clean implementation of an AWK interpreter, written in
### Lexer
Pretty much done; it is lacking a POSIX-compatibility mode (trivial) and arena integration (trivial).
Essentially done; it is only lacking thorough testing and numeric escapings (good first contribution).
### Parser
Also mostly done; some bullet points:
* Rough edges around error handling on expected tokens (remove `todo!()` and friends on a few error branches; trivial).
* Extend spans during Pratt parsing for better errors (trivial-ish?).
* The preprocessor is TBD.
* Extend spans during Pratt parsing for better error messages (trivial-ish?).
* The preprocessor is TBD (not complicated, but will tangle up pretty printing).
* It would be nice to reduce LOC.
* We are working on test coverage and fuzzing.
* It's possible we move to the `chumsky` crate for this reason and `ariadne` support. I currently think it's not necessary, though; we probably are better suited to owning the parser given how idiosyncratic and ambiguous AWK's grammar is.
* Start running awk parsing tests at some point (especially when we get a basic interpreter and nail down `--pretty-print`).
* Start running gawk parsing tests at some point (especially when we get a basic interpreter and nail down `--pretty-print`).
### Interpreter