Code Editor

The code editor is the heart of Blueberry, combining built-in language support, smart git awareness, and specialized viewers.

Multi-Language Syntax Highlighting

Blueberry supports 30+ programming languages out of the box:

Web Technologies: JavaScript, TypeScript, JSX/TSX, HTML, CSS, SCSS, Less, JSON, YAML, XML

Server Languages: Python, Go, Rust, Java, C#, C++, Ruby, PHP, Swift, Kotlin

Data & Config: SQL, GraphQL, Markdown, Shell, Dockerfile, TOML

Each language includes:

• Automatic language detection from file extension
• Syntax coloring with semantic token support
• Bracket matching and auto-closing
• Code folding for large files

Language Server Protocol (LSP)

Blueberry integrates with Language Server Protocol for intelligent code understanding:

Autocomplete (Cmd+Space)

• Context-aware suggestions based on file type
• Automatic completion for imports and variables
• Snippet insertion with field navigation

Hover Information

• Type information for variables and functions
• Inline documentation from source
• Parameter hints

Go to Definition (Cmd+Click)

• Navigate to function/class definitions
• Automatically opens file in new tab
• Preserves editor scroll position

Supported Languages: JavaScript, TypeScript, Python, Go, Rust (with language server installed)

Real-Time Git Gutter

The editor’s left margin shows live git status:

Features:

• Hover over changed line for original content
• Uses LCS diff algorithm for precision
• Updates instantly as you edit

Side-by-Side Diff Viewer

View original vs. current file content in the Source Control panel:

• Line numbers with diff indicators
• Syntax coloring in both panes
• Scroll sync between panes
• Full-screen diff view for detailed review

Image Viewer

Open images directly in the editor:

Zoom Levels: 10%, 25%, 50%, 75%, 100%, 150%, 200%, 300%, 400%

Shortcuts:

• + Zoom in
• - Zoom out
• F Toggle fit mode

Supported formats: PNG, JPG, GIF, WebP, SVG

Editor Settings

Customize from Settings → General:

• Font size (8px - 20px, default: 14px)
• Font family
• Theme
• Word wrap toggle
• Minimap toggle

Keyboard Shortcuts