Here’s a concise TODO list with main functionality names:

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Simple Text Editor - TODO

Project Setup

• Initialize Project: Set up Rust project and dependencies

Core Functionalities

• Editor Setup: Define Editor struct and main loop

Buffer Management

• Text Storage: Implement buffer to store lines
• Text Manipulation: Add insert and delete functionality

Cursor Management

• Position Tracking: Set up Cursor struct with x and y positions
• Navigation: Implement movement (up, down, left, right)

Input Handling

• Input Capture: Process keyboard input with crossterm
• Mode-Specific Commands: Handle Normal and Insert modes

Mode Management

• Mode Switching: Implement Normal and Insert modes

Screen Rendering

• Terminal Control: Set up raw mode and cursor placement
• Screen Refresh: Clear and render updated content

File I/O

• Open and Save: Implement file read and write functions

Testing

• Unit Tests: Test buffer, cursor, and file operations