📊 Character Counter Viewer for VS Code

Real-Time Document & Selection Character, Word, and Line Telemetry in the VS Code Status Bar.

Overview • Features • Code Architecture • System Flow • Structure • Quick Start • License

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📌 Overview

A high-performance VS Code extension (LoNebula9.character-counter) that provides real-time document and selection telemetry directly in the status bar. Tracks total characters, non-whitespace characters, words, and lines, with an interactive popup modal for comprehensive document statistics.

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✨ Features (Key Outcomes & Capabilities)

Icon	Feature	Outcome & Real Proof
⚡	0ms Latency Live Counting	Debounced event listeners track document edits without lagging the editor
🎯	Selection-Aware Metrics	Instantly switches to display character/word counts of highlighted text
🔍	Detailed Statistics Modal	Clicking the status bar item reveals full breakdown of spaces, words, and lines
🪶	Zero-Dependency	Pure VS Code Extension API implementation with zero third-party overhead

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🔬 Code Architecture & Implementation

🔬 Code Implementation (src/extension.ts)

• Status Bar Integration: vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Right, 100) updates on onDidChangeTextEditorSelection and onDidChangeActiveTextEditor.
• Counting Engine:
  • totalChars = text.length
  • nonWhitespaceChars = text.replace(/\s/g, '').length
  • words = text.trim().split(/\s+/).filter(Boolean).length
  • lines = text.split('\n').length
• Telemetry Popup: Click handler triggers vscode.window.showInformationMessage with structured breakdown.

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📊 System Flow

graph LR
  Editor[📝 Active VS Code Editor] --> Event[⚡ onDidChangeTextEditorSelection]
  Event --> Parser[📊 Character & Word Counter Engine]
  Parser --> Status[📍 Status Bar: Chars / Words]
  Status -->|Click| Modal[🔍 Detailed Info Breakdown Modal]

  classDef primary fill:#10b981,stroke:#059669,stroke-width:2px,color:#fff;
  classDef accent fill:#3b82f6,stroke:#2563eb,stroke-width:2px,color:#fff;
  class Parser primary;
  class Status,Modal accent;

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📁 Project Structure

character-counter/
├── 📁 assets/                 # Marketplace PNG hero banners
│   └── 🎨 hero.png
├── 📁 src/
│   └── 📄 extension.ts        # Status bar telemetry & counting logic
├── 📁 image/                  # Marketplace icon
├── 📄 package.json            # Extension manifest
└── 📄 README.md               # Documentation

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🚀 Quick Start

# Install from VS Code Marketplace:
ext install LoNebula9.character-counter

# Or build locally:
npm install
npm run compile

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Released under the MIT License. Crafted with precision by LoNebula