merge vi

[jgarzik]

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[Copilot]

Pull request overview

This PR merges a comprehensive vi editor implementation in Rust. The implementation includes command mode parsing, insert mode, ex commands, undo/redo functionality, search, shell integration, and terminal UI rendering.

• Implements a POSIX-compliant vi editor with support for standard vi commands, motions, and operations
• Provides undo/redo system, register management, and search functionality with regex support
• Includes terminal abstraction with raw mode, screen buffering, and shell command execution

Reviewed changes

Copilot reviewed 38 out of 39 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
editors/vi/undo.rs	Implements undo/redo system with change tracking and line restoration
editors/vi/ui/terminal.rs	Terminal abstraction for raw mode control and screen rendering
editors/vi/ui/status.rs	Status line display and file information formatting
editors/vi/ui/screen.rs	Screen buffer management with tab expansion and display calculations
editors/vi/ui/mod.rs	UI module exports for display utilities
editors/vi/ui/display.rs	Display width calculations and text expansion utilities
editors/vi/shell.rs	Shell command execution with security validation and special character expansion
editors/vi/search.rs	Search and pattern matching with BRE support and substitutor
editors/vi/register.rs	Register storage for yank/delete/put operations
editors/vi/options.rs	Editor options management for :set commands
editors/vi/mode/mode.rs	Editor mode definitions (Command, Insert, Ex, Replace, Open)
editors/vi/mode/mod.rs	Mode module exports
editors/vi/mode/insert.rs	Insert mode handling with character insertion and special keys
editors/vi/main.rs	Main entry point with command-line argument parsing
editors/vi/lib.rs	Library exports for all vi editor modules
editors/vi/input/reader.rs	Input reading from terminal with escape sequence parsing
editors/vi/input/mod.rs	Input module exports
editors/vi/input/key.rs	Key event types and conversions
editors/vi/file.rs	File I/O operations for reading, writing, and file management
editors/vi/ex/parser.rs	Ex command parser for colon commands
editors/vi/ex/mod.rs	Ex module exports
editors/vi/ex/command.rs	Ex command definitions and result types
editors/vi/ex/address.rs	Ex command address parsing and resolution
editors/vi/error.rs	Error types for vi operations
editors/vi/editor.rs	Main editor state and event loop
editors/vi/command/mod.rs	Command processing module exports
editors/vi/buffer/position.rs	Position and range types for edit buffer
Cargo.toml	Adds editors workspace member

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