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# Description Fix cursor panic when handling size zero in binary viewer. Previously, the cursor would panic with arithmetic overflow when handling size 0. This PR fixes this by using `saturating_sub` to safely handle the edge case of size 0. Fixes #14589 # User-Facing Changes - Fixed panic when viewing very small binary inputs in the explore command (when using `0x[f] | explore`) # Tests + Formatting Added tests to verify: - Cursor handling of size 0 - Safe movement operations with size 0 - Edge case handling with size 1 ✅ Verified all checks pass: - `cargo fmt --all -- --check` - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` - `cargo test --package nu-explore --lib cursor`
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.