Umesh Yadav
8db0333b04
This PR fixes a crash in the fuzzy matcher that occurred when handling
Unicode or multibyte characters (such as Turkish `İ` or `ş`). The issue
was caused by the matcher attempting to index beyond the end of internal
arrays when lowercased Unicode characters expanded into multiple
codepoints, resulting in an out-of-bounds panic.
#### Root Cause
The loop in `recursive_score_match` used an upper bound (`limit`)
derived from `self.last_positions[query_idx]`, which could exceed the
actual length of the arrays being indexed, especially with multibyte
Unicode input.
#### Solution
The fix clamps the loop’s upper bound to the maximum valid index for the
arrays being accessed:
```rust
let max_valid_index = (prefix.len() + path_lowercased.len()).saturating_sub(1);
let safe_limit = limit.min(max_valid_index);
for j in path_idx..=safe_limit { ... }
```
This ensures all indexing is safe and prevents panics.
Closes #30269
Release Notes:
- N/A
---------
Signed-off-by: Umesh Yadav <git@umesh.dev>
Zed
Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
Installation
On macOS and Linux you can download Zed directly or install Zed via your local package manager.
Other platforms are not yet available:
- Windows (tracking issue)
- Web (tracking issue)
Developing Zed
- Building Zed for macOS
- Building Zed for Linux
- Building Zed for Windows
- Running Collaboration Locally
Contributing
See CONTRIBUTING.md for ways you can contribute to Zed.
Also... we're hiring! Check out our jobs page for open roles.
Licensing
License information for third party dependencies must be correctly provided for CI to pass.
We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:
- Is it showing a
no license specifiederror for a crate you've created? If so, addpublish = falseunder[package]in your crate's Cargo.toml. - Is the error
failed to satisfy license requirementsfor a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to theacceptedarray inscript/licenses/zed-licenses.toml. - Is
cargo-aboutunable to find the license for a dependency? If so, add a clarification field at the end ofscript/licenses/zed-licenses.toml, as specified in the cargo-about book.