mirror of https://github.com/astral-sh/ruff.git synced 2025-07-23 13:05:58 +00:00

History

Dhruv Manilawala ed948eaefb Avoid moving back the lexer for triple-quoted fstring (#11939 ) ## Summary This PR avoids moving back the lexer for a triple-quoted f-string during the re-lexing phase. The reason this is a problem is that for a triple-quoted f-string the newlines are part of the f-string itself, specifically they'll be part of the `FStringMiddle` token. So, if we moved the lexer back, there would be a `Newline` token whose range would be in between an `FStringMiddle` token. This creates a panic in downstream usage. fixes: #11937 ## Test Plan Add test cases and validate the snapshots.		2024-06-20 16:27:36 +05:30
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resources	Avoid moving back the lexer for triple-quoted fstring (#11939 )	2024-06-20 16:27:36 +05:30
src	Avoid moving back the lexer for triple-quoted fstring (#11939 )	2024-06-20 16:27:36 +05:30
tests	Avoid moving back the lexer for triple-quoted fstring (#11939 )	2024-06-20 16:27:36 +05:30
Cargo.toml	Remove less used parser dependencies (#11718 )	2024-06-03 13:08:24 +00:00
CONTRIBUTING.md	Add basic docs for the parser crate (#11199 )	2024-04-29 17:08:07 +00:00
README.md	Add basic docs for the parser crate (#11199 )	2024-04-29 17:08:07 +00:00

README.md

Ruff Python Parser

Ruff's Python parser is a hand-written recursive descent parser which can parse Python source code into an Abstract Syntax Tree (AST). It also utilizes the Pratt parsing technique to parse expressions with different precedence.

Try out the parser in the playground.

Python version support

The parser supports the latest Python syntax, which is currently Python 3.12. It does not throw syntax errors if it encounters a syntax feature that is not supported by the target-version. This will be fixed in a future release (see https://github.com/astral-sh/ruff/issues/6591).

Contributing

Refer to the contributing guidelines to get started and GitHub issues with the parser label for issues that need help.