ANSI Automatic Clean Viewer
Automatically hides ANSI escape codes and colorizes text in .ansi files with intelligent background processing.
Features
- Automatic ANSI Code Hiding: Escape codes like
\x1b[1;34m are made invisible
- Color Preservation: Text colors are preserved and displayed beautifully
- Smart Background Processing: Large files are processed progressively without blocking VS Code
- Viewport Optimization: Visible area is colorized immediately, rest follows automatically
- No File Modification: All changes are visual only - your original file remains untouched
- Memory Efficient: Processes files in chunks to maintain good performance
Usage
- Open any file with
.ansi extension
- ANSI codes are automatically hidden and colors are applied
- Large files are processed progressively in the background
- Scroll freely - colorization happens smoothly in real-time
Commands
- Toggle ANSI Code Hiding: Enable/disable ANSI code processing
Ctrl+Shift+P → "ANSI Clean Viewer: Toggle ANSI Code Hiding"
Configuration
{
"ansiCleanViewer.enabled": true
}
Supported ANSI Colors
- Standard colors (30-37): Black, Red, Green, Yellow, Blue, Magenta, Cyan, White
- Bright colors (90-97): Bright variants of standard colors
- Bold text (code 1)
How It Works
The extension uses VS Code's TextEditorDecorationType API to:
- Hide ANSI codes by setting opacity to 0 and collapsing letter spacing
- Apply colors to text based on ANSI color codes
- Process large files progressively (1000 lines per 100ms) in the background
- Maintain decorations across the entire document
- Viewport Buffer: 500 lines before/after visible area for smooth scrolling
- Chunk Processing: 1000 lines per background iteration
- Throttled Updates: Smart throttling prevents UI blocking during scroll
- Memory Management: Accumulates decorations efficiently without memory leaks
Requirements
License
MIT
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