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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>D1F MultiLineDiff - The Milkyway's Best Diff Swift Package D1F</title>
<meta name="description" content="D1F Dee One Eff Revolutionary Swift diffing library with AI integration, ASCII diffs, and lightning-fast performance. Created by Heisenburg © d1f.ai">
<meta name="keywords" content="diff, swift, AI, ASCII, code, algorithm, performance, d1f.ai, heisenburg">
<meta name="author" content="Heisenburg, d1f.ai">
<!-- Open Graph / Facebook -->
<meta property="og:type" content="website">
<meta property="og:url" content="https://d1f.ai/">
<meta property="og:title" content="D1F MultiLineDiff - Revolutionary Diffing System">
<meta property="og:description" content="The world's most advanced diffing system with AI integration and lightning-fast performance">
<meta property="og:image" content="https://d1f.ai/images/og-image.png">
<!-- Twitter -->
<meta property="twitter:card" content="summary_large_image">
<meta property="twitter:url" content="https://d1f.ai/">
<meta property="twitter:title" content="D1F MultiLineDiff - Revolutionary Diffing System">
<meta property="twitter:description" content="The world's most advanced diffing system with AI integration and lightning-fast performance">
<meta property="twitter:image" content="https://d1f.ai/images/twitter-image.png">
<!-- Favicon -->
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<link href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/themes/prism-tomorrow.min.css?v=1748572844" rel="stylesheet">
</head>
<body>
<!-- Agent Banner -->
<div class="agent-banner">
<a href="https://agentiloop.ai" target="_blank" class="agent-banner-link">
<img src="images/agent_icon.png" alt="Agent!" class="agent-banner-icon">
<span class="agent-banner-text">As seen on <strong>Agent!</strong> Agentic AI for Apple Mac Desktop</span>
<span class="agent-banner-arrow">→</span>
</a>
</div>
<!-- Navigation -->
<nav class="navbar">
<div class="nav-container">
<div class="nav-brand">
<a href="https://d1f.ai" class="nav-brand-link">
<svg class="logo-icon" viewBox="0 0 40 40" fill="none" xmlns="http://www.w3.org/2000/svg">
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</svg>
<span class="logo-text">D1F</span>
</a>
</div>
<div class="nav-menu" id="nav-menu" aria-hidden="true" role="navigation">
<a href="#algorithms" class="nav-link">Algorithms</a>
<a href="#demo" class="nav-link">Demo</a>
<a href="#docs" class="nav-link">Docs</a>
<a href="#performance" class="nav-link">Performance</a>
<a href="https://XCF.ai" class="nav-link" target="_blank">Xcode</a>
<a href="https://github.com/codefreezeai/swift-multi-line-diff" class="nav-link" target="_blank">
GitHub
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Agent!
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</nav>
<!-- Hero Section -->
<section class="hero">
<div class="hero-background">
<span class="milkyway-star" style="top:8%;left:12%;width:2px;height:2px;animation-delay:0s;"></span>
<span class="milkyway-star" style="top:15%;left:60%;width:3px;height:3px;animation-delay:1.2s;"></span>
<span class="milkyway-star" style="top:22%;left:80%;width:1.5px;height:1.5px;animation-delay:2.1s;"></span>
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</div>
<div class="container">
<div class="hero-content">
<div class="hero-badge">
<span class="badge-icon">🔨</span>
<span>Revolutionary Breakthrough</span>
</div>
<h1 class="hero-title">
The Milkyway’s
<span class="gradient-text">Best Diff Swift Package</span>
<span class="d1f-shimmer">D1F<span></span><span></span><span></span><span></span></span>
</h1>
<p class="hero-subtitle">
D1F makes Git diff, Myers algorithm, and traditional tools obsolete.
Experience <strong>10x faster performance</strong>, <strong>AI integration</strong>,
and <strong>100% accuracy</strong> with the most flexible diffing system in the Galaxy.
</p>
<div class="hero-stats">
<div class="stat">
<div class="stat-number">10x</div>
<div class="stat-label">Faster</div>
</div>
<div class="stat">
<div class="stat-number">4</div>
<div class="stat-label">Algorithms</div>
</div>
<div class="stat">
<div class="stat-number">100%</div>
<div class="stat-label">Accurate</div>
</div>
<div class="stat">
<div class="stat-number">🤖</div>
<div class="stat-label">AI Ready</div>
</div>
</div>
<div class="hero-actions">
<a href="#demo" class="btn btn-primary">
<span>Try Live Demo</span>
<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<path d="m9 18 6-6-6-6"/>
</svg>
</a>
<a href="https://github.com/codefreezeai/swift-multi-line-diff" class="btn btn-secondary" target="_blank">
<svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
<path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z"/>
</svg>
<span>View on GitHub</span>
</a>
</div>
</div>
</div>
</section>
<!-- Diff Showcase Section -->
<section id="showcase" class="diff-showcase">
<div class="container">
<div class="showcase-content">
<div class="showcase-text">
<a href="#demo" class="showcase-badge">
<span class="badge-icon">✨</span>
<span>Live Example</span>
</a>
<h2 class="section-title"> <span class="section-title-small">See the </span><span class="glitter-text">Magic<span></span><span></span><span></span><span></span></span><span class="section-title-small"> in Action</span></h2>
<p class="section-subtitle" style="padding-bottom:25px;">Instantly visualize every code change with beautiful emoji symbols. AI native diffs for humans and machines.</p>
<div class="showcase-features">
<div class="showcase-feature">
<span class="feature-symbol">📎</span>
<span>Paperclip = Unchanged lines</span>
</div>
<div class="showcase-feature">
<span class="feature-symbol">❌</span>
<span>Red X = Lines to delete</span>
</div>
<div class="showcase-feature">
<span class="feature-symbol">✅</span>
<span>Green check = Lines to add</span>
</div>
<div class="showcase-feature">
<span class="feature-symbol">🤖</span>
<span>AI Ready = Perfect integration</span>
</div>
</div>
<div class="showcase-stats">
<div class="stat-item">
<span class="stat-number">D1F</span>
<span class="stat-label">3x Smarter than Git</span>
</div>
<div class="stat-item">
<span class="stat-number">HUE</span>
<span class="stat-label">Readable by Humans</span>
</div>
<div class="stat-item">
<span class="stat-number"><a href="https://xcf.ai" target="_blank">MCP</a></span>
<span class="stat-label">Built For AI Integration</span>
</div>
</div>
</div>
<div class="showcase-visual">
<div class="code-demo">
<div class="code-header">
<div class="code-dots">
<span></span>
<span></span>
<span></span>
</div>
<span class="code-title">D1F MULTI LINE DIFF</span>
<div class="code-actions">
<button class="code-action-btn" title="Copy to clipboard">
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect>
<path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path>
</svg>
</button>
</div>
</div>
<div class="code-content">
<pre><code class="language-swift">📎 class TaskManager {
📎 private var tasks: [Task] = []
✅ private var count: Int = 0
📎
❌ func add(name: String) -> Bool {
✅ func add(name: String) -> Result {
📎 guard !name.isEmpty else {
❌ return false
✅ return .failure(.invalid)
📎 }
📎
❌ let task = Task(name: name)
✅ let task = Task(id: UUID(), name: name)
📎 tasks.append(task)
❌ return true
✅ count += 1
✅ return .success(task)
📎 }
📎 }</code></pre>
</div>
<div class="code-footer">
<div class="diff-stats">
<span class="diff-stat">🤖 Optimus</span>
<span class="diff-stat">📊 15 Operations</span>
<span class="diff-stat">🕐 10ms</span>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
<!-- Demo Section -->
<section id="demo" class="demo">
<div class="section-header">
<div>
<h2 class="section-title">Interactive Demo</h2>
<p class="section-subtitle">Experience the power of D1F MultiLineDiff in real-time</p>
</div>
</div>
<div class="demo-container">
<div class="demo-controls">
<div class="controls-header">
<div class="implementation-badge">
<span class="badge-icon">✅</span>
<span>Real JavaScript Implementation</span>
</div>
</div>
<div class="controls-main">
<div class="controls-section">
<h4>Configuration</h4>
<div class="controls-row">
<div class="control-group">
<label for="algorithm-select">Algorithm</label>
<select id="algorithm-select" class="control-select">
<option value="flash">⚡ Flash</option>
<option value="zoom">🔍 Zoom</option>
<option value="optimus" selected>🤖 Optimus</option>
<option value="megatron">🧠 Megatron</option>
</select>
</div>
<div class="control-group">
<label for="format-select">Output Format</label>
<select id="format-select" class="control-select">
<option value="ai" selected>🤖 AI Format</option>
<option value="terminal">💻 Terminal</option>
<option value="json">📊 JSON</option>
<option value="base64">🔐 Base64</option>
</select>
</div>
</div>
</div>
<div class="controls-section">
<h4>Diff Legend</h4>
<div class="diff-legend">
<div class="legend-item">
<span class="legend-symbol retain">📎</span>
<span class="legend-label">Retain</span>
</div>
<div class="legend-item">
<span class="legend-symbol insert">✅</span>
<span class="legend-label">Insert</span>
</div>
<div class="legend-item">
<span class="legend-symbol delete">❌</span>
<span class="legend-label">Delete</span>
</div>
</div>
</div>
</div>
</div>
<div class="demo-panels">
<div class="demo-panel">
<div class="panel-header">
<h4>Source</h4>
<button class="btn-small btn-gradient" id="load-example">Load Example</button>
</div>
<textarea id="source-input" class="demo-textarea" placeholder="Enter your source code here..."></textarea>
</div>
<div class="demo-panel">
<div class="panel-header">
<h4>Destination</h4>
<button class="btn-small btn-gradient" id="clear-dest">Clear</button>
</div>
<textarea id="dest-input" class="demo-textarea" placeholder="Enter your modified code here..."></textarea>
</div>
<div class="demo-panel demo-output">
<div class="panel-header" style="flex-direction: column; align-items: center; gap: 12px;">
<div class="output-stats" id="output-stats"></div>
</div>
<div id="diff-output" class="demo-output-content">
<div class="placeholder">
<div class="placeholder-icon">📊</div>
<p>Generate a diff to see the output here</p>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
<!-- Algorithms Section -->
<section id="algorithms" class="algorithms">
<div class="container">
<div class="section-header">
<h2 class="section-title">Four Powerful Algorithms</h2>
<p class="section-subtitle">Choose the perfect algorithm for your specific needs</p>
</div>
<div class="algorithms-container">
<div class="algorithm-tabs">
<button class="tab-button active" data-algorithm="flash">⚡ Flash</button>
<button class="tab-button" data-algorithm="zoom">🔍 Zoom</button>
<button class="tab-button" data-algorithm="optimus">🤖 Optimus</button>
<button class="tab-button" data-algorithm="megatron">🧠 Megatron</button>
</div>
<div class="algorithm-content">
<div class="algorithm-panel active" id="flash">
<div class="algorithm-info">
<div class="algorithm-header">
<h3>⚡ Flash Algorithm</h3>
<div class="algorithm-badges">
<span class="badge badge-primary">Fastest</span>
<span class="badge badge-success">O(n)</span>
<span class="badge badge-info">Swift Native</span>
</div>
</div>
<p>Lightning-fast prefix/suffix detection using Swift's native string methods. Perfect for speed-critical applications and real-time editing.</p>
<div class="algorithm-stats">
<div class="stat-item">
<span class="stat-label">Create Time</span>
<span class="stat-value static-time">14.5ms</span>
</div>
<div class="stat-item">
<span class="stat-label">Apply Time</span>
<span class="stat-value static-time">6.6ms</span>
</div>
<div class="stat-item">
<span class="stat-label">Operations</span>
<span class="stat-value">3</span>
</div>
<div class="stat-item">
<span class="stat-label">Memory</span>
<span class="stat-value">Minimal</span>
</div>
</div>
</div>
<div class="algorithm-code">
<pre><code class="language-swift">// Flash: Fastest algorithm
let diff = MultiLineDiff.createDiff(
source: "Hello, world!",
destination: "Hello, Swift!",
algorithm: .flash
)
// Result: 3 operations, 21.0ms total</code></pre>
</div>
</div>
<div class="algorithm-panel" id="zoom">
<div class="algorithm-info">
<div class="algorithm-header">
<h3>🔍 Zoom Algorithm</h3>
<div class="algorithm-badges">
<span class="badge badge-primary">Simple</span>
<span class="badge badge-success">O(n)</span>
<span class="badge badge-info">Character-based</span>
</div>
</div>
<p>Simple and fast character-based algorithm for straightforward text changes. Minimal operations with excellent performance.</p>
<div class="algorithm-stats">
<div class="stat-item">
<span class="stat-label">Create Time</span>
<span class="stat-value static-time">23.9ms</span>
</div>
<div class="stat-item">
<span class="stat-label">Apply Time</span>
<span class="stat-value static-time">9.1ms</span>
</div>
<div class="stat-item">
<span class="stat-label">Operations</span>
<span class="stat-value">4</span>
</div>
<div class="stat-item">
<span class="stat-label">Simplicity</span>
<span class="stat-value">Maximum</span>
</div>
</div>
</div>
<div class="algorithm-code">
<pre><code class="language-swift">// Zoom: Simple character-based
let diff = MultiLineDiff.createDiff(
source: simpleText,
destination: modifiedText,
algorithm: .zoom
)
// Result: Minimal operations, fast processing</code></pre>
</div>
</div>
<div class="algorithm-panel" id="optimus">
<div class="algorithm-info">
<div class="algorithm-header">
<h3>🤖 Optimus Algorithm</h3>
<div class="algorithm-badges">
<span class="badge badge-primary">Line-Aware</span>
<span class="badge badge-warning">O(n log n)</span>
<span class="badge badge-info">CollectionDiff</span>
</div>
</div>
<p>Sophisticated CollectionDifference-based line analysis with semantic understanding. Ideal for code refactoring and structured text.</p>
<div class="algorithm-stats">
<div class="stat-item">
<span class="stat-label">Create Time</span>
<span class="stat-value static-time">43.7ms</span>
</div>
<div class="stat-item">
<span class="stat-label">Apply Time</span>
<span class="stat-value static-time">6.6ms</span>
</div>
<div class="stat-item">
<span class="stat-label">Operations</span>
<span class="stat-value">1256</span>
</div>
<div class="stat-item">
<span class="stat-label">Detail</span>
<span class="stat-value">High</span>
</div>
</div>
</div>
<div class="algorithm-code">
<pre><code class="language-swift">// Optimus: Line-aware processing
let diff = MultiLineDiff.createDiff(
source: sourceCode,
destination: refactoredCode,
algorithm: .optimus
)
// Result: Detailed operations, semantic understanding</code></pre>
</div>
</div>
<div class="algorithm-panel" id="megatron">
<div class="algorithm-info">
<div class="algorithm-header">
<h3>🧠 Megatron Algorithm</h3>
<div class="algorithm-badges">
<span class="badge badge-primary">Semantic</span>
<span class="badge badge-warning">O(n log n)</span>
<span class="badge badge-success">Balanced</span>
</div>
</div>
<p>Advanced semantic analysis with balanced performance and accuracy. The default choice for most applications requiring detailed diff analysis.</p>
<div class="algorithm-stats">
<div class="stat-item">
<span class="stat-label">Create Time</span>
<span class="stat-value static-time">47.8ms</span>
</div>
<div class="stat-item">
<span class="stat-label">Apply Time</span>
<span class="stat-value static-time">7.0ms</span>
</div>
<div class="stat-item">
<span class="stat-label">Operations</span>
<span class="stat-value">1256</span>
</div>
<div class="stat-item">
<span class="stat-label">Accuracy</span>
<span class="stat-value">Excellent</span>
</div>
</div>
</div>
<div class="algorithm-code">
<pre><code class="language-swift">// Megatron: Semantic analysis (default)
let diff = MultiLineDiff.createDiff(
source: source,
destination: destination,
algorithm: .megatron
)
// Result: Balanced performance and accuracy</code></pre>
</div>
</div>
</div>
</div>
</div>
</section>
<!-- Documentation Section -->
<section id="docs" class="docs">
<div class="container">
<div class="section-header">
<h2 class="section-title">Documentation</h2>
<p class="section-subtitle">Comprehensive guides and API reference</p>
</div>
<!-- Keep the beloved 6 cards! -->
<div class="docs-grid">
<div class="doc-card" data-doc="quick-start">
<div class="doc-icon">🚀</div>
<h3>Quick Start</h3>
<p>Get up and running with MultiLineDiff in minutes. Installation, basic usage, and first examples.</p>
<button class="doc-link doc-toggle">Read Guide →</button>
</div>
<div class="doc-card" data-doc="ascii-diff">
<div class="doc-icon">🤖</div>
<h3>ASCII Diff Format</h3>
<p>Learn the revolutionary ASCII diff format with 📎❌✅ symbols for AI integration and human readability.</p>
<button class="doc-link doc-toggle">Learn Format →</button>
</div>
<div class="doc-card" data-doc="algorithms">
<div class="doc-icon">⚡</div>
<h3>Flash & Optimus</h3>
<p>Deep dive into the fastest algorithms: Flash (14.5ms) and Optimus (line-aware) with Swift native methods.</p>
<button class="doc-link doc-toggle">Explore Algorithms →</button>
</div>
<div class="doc-card" data-doc="parser-update">
<div class="doc-icon">🔧</div>
<h3>Enhanced Parser</h3>
<p>Advanced ASCII parser with metadata capture, source reconstruction, and location tracking.</p>
<button class="doc-link doc-toggle">View Updates →</button>
</div>
<div class="doc-card" data-doc="revolutionary-features">
<div class="doc-icon">🌟</div>
<h3>Revolutionary Features</h3>
<p>Complete feature overview: cryptographic security, undo generation, and superiority over Git diff.</p>
<button class="doc-link doc-toggle">See Features →</button>
</div>
<div class="doc-card" data-doc="api-reference">
<div class="doc-icon">📖</div>
<h3>API Reference</h3>
<p>Complete Swift API documentation with all methods, parameters, and return types.</p>
<button class="doc-link doc-toggle">View API →</button>
</div>
</div>
<!-- Expandable Documentation Content -->
<div class="docs-content">
<!-- Quick Start Documentation -->
<div class="doc-content" id="quick-start-content">
<div class="doc-header">
<h3>🚀 Quick Start Guide</h3>
<button class="doc-close">×</button>
</div>
<div class="doc-body">
<h4>Installation</h4>
<pre><code class="language-swift">// Add to Package.swift
dependencies: [
.package(url: "https://github.com/codefreezeai/swift-multi-line-diff", from: "2.0.1")
]</code></pre>
<h4>Basic Usage</h4>
<pre><code class="language-swift">import MultiLineDiff
// Create a diff between two strings
let source = "Hello, world!"
let destination = "Hello, Swift!"
let diff = MultiLineDiff.createDiff(
source: source,
destination: destination,
algorithm: .flash // Fastest algorithm
)
// Apply the diff
let result = try MultiLineDiff.applyDiff(to: source, diff: diff)
print(result) // "Hello, Swift!"</code></pre>
<h4>AI-Friendly ASCII Format</h4>
<pre><code class="language-swift">// Generate ASCII diff for AI
let asciiDiff = MultiLineDiff.createAndDisplayDiff(
source: source,
destination: destination,
format: .ai
)
print(asciiDiff)
// Output:
// 📎 Hello,
// ❌ world
// ✅ Swift
// 📎 !</code></pre>
<h4>Round-Trip Workflow</h4>
<pre><code class="language-swift">// Parse ASCII diff back to operations
let parsedDiff = try MultiLineDiff.parseDiffFromASCII(asciiDiff)
// Apply parsed diff
let finalResult = try MultiLineDiff.applyDiff(to: source, diff: parsedDiff)
// Result: 100% accuracy guaranteed!</code></pre>
</div>
</div>
<!-- ASCII Diff Documentation -->
<div class="doc-content" id="ascii-diff-content">
<div class="doc-header">
<h3>🤖 ASCII Diff Format</h3>
<button class="doc-close">×</button>
</div>
<div class="doc-body">
<h4>Symbol Rules</h4>
<p><strong>IMPORTANT:</strong> All diff symbols are EXACTLY two characters:</p>
<ul>
<li><code>📎 </code> (Paperclip + space): Retained/unchanged lines</li>
<li><code>❌ </code> (Red X + space): Lines to be removed</li>
<li><code>✅ </code> (Green checkmark + space): Lines to be added</li>
</ul>
<h4>Visual Meaning</h4>
<table class="docs-table">
<thead>
<tr>
<th>Symbol</th>
<th>Operation</th>
<th>Visual Meaning</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>📎 </code></td>
<td>Retain</td>
<td>📎 Paperclip</td>
<td>Unchanged lines - "keeps code together"</td>
</tr>
<tr>
<td><code>❌ </code></td>
<td>Delete</td>
<td>❌ Red X</td>
<td>Lines to be removed - "delete this"</td>
</tr>
<tr>
<td><code>✅ </code></td>
<td>Insert</td>
<td>✅ Green checkmark</td>
<td>New lines to be added - "add this"</td>
</tr>
</tbody>
</table>
<h4>Exoplanet Example</h4>
<pre><code class="language-swift">📎 class UserManager {
📎 private var users: [String: User] = [:]
✅ private var userCount: Int = 0
📎
❌ func addUser(name: String, email: String) -> Bool {
✅ func addUser(name: String, email: String, age: Int = 0) -> Result<User, UserError> {
📎 guard !name.isEmpty && !email.isEmpty else {
❌ return false
✅ return .failure(.invalidInput)
📎 }
📎
❌ let user = User(name: name, email: email)
✅ let user = User(id: UUID(), name: name, email: email, age: age)
📎 users[email] = user
❌ return true
✅ userCount += 1
✅ return .success(user)
📎 }
📎 }</code></pre>
<h4>AI Integration Benefits</h4>
<ul>
<li><strong>Human Readable:</strong> Instantly understand changes</li>
<li><strong>AI Parseable:</strong> Perfect for LLM integration</li>
<li><strong>Version Control:</strong> Git-friendly format</li>
<li><strong>Documentation:</strong> Self-documenting patches</li>
<li><strong>Debugging:</strong> Visual diff inspection</li>
</ul>
<p><a href="https://github.com/codefreezeai/swift-multi-line-diff/blob/main/NEW_ASCII_DIFF.md" target="_blank" class="external-link">📖 View Complete ASCII Diff Documentation →</a></p>
</div>
</div>
<!-- Algorithms Documentation -->
<div class="doc-content" id="algorithms-content">
<div class="doc-header">
<h3>⚡ Flash & Optimus Algorithms</h3>
<button class="doc-close">×</button>
</div>
<div class="doc-body">
<h4>Performance Comparison</h4>
<table class="docs-table">
<thead>
<tr>
<th>Algorithm</th>
<th>Create (ms)</th>
<th>Apply (ms)</th>
<th>Total (ms)</th>
<th>Operations</th>
<th>Type</th>
</tr>
</thead>
<tbody>
<tr class="winner">
<td><strong>⚡ Flash</strong></td>
<td><strong>14.5</strong></td>
<td><strong>6.6</strong></td>
<td><strong>21.0</strong></td>
<td>3</td>
<td>Swift Native</td>
</tr>
<tr>
<td>🤖 Optimus</td>
<td>43.7</td>
<td>6.6</td>
<td>50.3</td>
<td>1256</td>
<td>CollectionDiff</td>
</tr>
</tbody>
</table>
<h4>⚡ Flash Algorithm</h4>
<p>The <strong>fastest</strong> diff algorithm using Swift's native string manipulation methods (<code>commonPrefix</code>, <code>commonSuffix</code>).</p>
<pre><code class="language-swift">// Flash Algorithm Usage
let diff = MultiLineDiff.createDiff(
source: "Hello, Universe!",
destination: "Hello, Swift!",
algorithm: .flash
)
// Flash identifies:
// Prefix: "Hello, " (7 chars) → RETAIN
// Middle: "world" → DELETE, "Swift" → INSERT
// Suffix: "!" (1 char) → RETAIN</code></pre>
<h4>🤖 Optimus Algorithm</h4>
<p>Combines the <strong>power of CollectionDifference</strong> with <strong>line-aware processing</strong>.</p>
<pre><code class="language-swift">// Optimus Algorithm Usage
let diff = MultiLineDiff.createDiff(
source: sourceCode,
destination: modifiedCode,
algorithm: .optimus
)
// Optimus Process:
// 1. Split text into lines preserving line endings
// 2. Use CollectionDifference to find line changes
// 3. Convert to character-based operations
// 4. Consolidate consecutive operations</code></pre>
<h4>Algorithm Selection Guide</h4>
<div class="algorithm-guide">
<div class="guide-section">
<h5>🚀 Choose Flash When:</h5>
<ul>
<li>Speed is critical</li>
<li>Simple character-level changes</li>
<li>Memory constrained environments</li>
<li>Want minimal operations</li>
</ul>
</div>
<div class="guide-section">
<h5>🤖 Choose Optimus When:</h5>
<ul>
<li>Working with code/structured text</li>
<li>Need detailed operation tracking</li>
<li>Want semantic understanding</li>
<li>Require line-aware processing</li>
</ul>
</div>
</div>
<p><a href="https://github.com/codefreezeai/swift-multi-line-diff/blob/main/NEW_OPTIMUS_FLASH.md" target="_blank" class="external-link">📖 View Complete Algorithm Documentation →</a></p>
</div>
</div>
<!-- Parser Update Documentation -->
<div class="doc-content" id="parser-update-content">
<div class="doc-header">
<h3>🔧 Enhanced ASCII Parser</h3>
<button class="doc-close">×</button>
</div>
<div class="doc-body">
<h4>New Features Added</h4>
<ul>
<li><strong>📝 Source Content Capture:</strong> Reconstructs complete source text</li>
<li><strong>📝 Destination Content Capture:</strong> Reconstructs complete destination text</li>
<li><strong>📍 Preceding Context:</strong> Captures the first line of the source</li>
<li><strong>📍 Following Context:</strong> Captures the last line of the source</li>
<li><strong>🎯 Source Start Line:</strong> Identifies exactly where modifications begin</li>
<li><strong>📊 Source Total Lines:</strong> Total number of lines in the source</li>
</ul>
<h4>Source Start Line Explanation</h4>
<p>The <code>sourceStartLine</code> pinpoints exactly where modifications begin:</p>
<pre><code class="language-swift">Line 1: 📎 class Calculator { (retain)
Line 2: 📎 private var result... (retain)
Line 3: ❌ func add(_ value... (delete) ← MODIFICATIONS START HERE
Line 4: ❌ result += value (delete)
Line 5: ❌ } (delete)
Line 6: ✅ func add(_ value... (insert)
Line 7: ✅ result += value (insert)
Line 8: ✅ return result (insert)
Line 9: ✅ } (insert)
// Result: sourceStartLine = 2 (0-indexed, displayed as Line 3)</code></pre>
<h4>Enhanced Metadata Structure</h4>
<pre><code class="language-swift">DiffMetadata(
sourceStartLine: 2, // NEW: Where modifications begin
sourceTotalLines: 9, // Total source lines
precedingContext: "class Calculator {", // First line of source
followingContext: "}", // Last line of source
sourceContent: "class Calculator {\n...", // Complete source
destinationContent: "class Calculator {\n...", // Complete destination
algorithmUsed: .megatron,
applicationType: .requiresFullSource
)</code></pre>
<h4>Practical Benefits</h4>
<div class="benefits-grid">
<div class="benefit-item">
<h5>🤖 AI Integration</h5>
<p>Full source/destination content for validation and context information for intelligent patch application.</p>
</div>
<div class="benefit-item">
<h5>📍 Location Tracking</h5>
<p>Precise positioning for patch application with context helps locate diffs in large files.</p>
</div>
<div class="benefit-item">
<h5>✅ Verification</h5>
<p>Complete source/destination reconstruction with checksum validation support.</p>
</div>
<div class="benefit-item">
<h5>↩️ Undo Operations</h5>
<p>Create reverse diffs with stored content and full context preservation for rollback scenarios.</p>
</div>
</div>
<p><a href="https://github.com/codefreezeai/swift-multi-line-diff/blob/main/NEW_ASCIIPARSER_UPDATE.md" target="_blank" class="external-link">📖 View Complete Parser Documentation →</a></p>
</div>
</div>
<!-- Revolutionary Features Documentation -->
<div class="doc-content" id="revolutionary-features-content">
<div class="doc-header">
<h3>🌟 Revolutionary Features</h3>
<button class="doc-close">×</button>
</div>
<div class="doc-body">
<h4>🚀 Revolutionary Breakthrough</h4>
<p>MultiLineDiff isn't just another diff tool—it's a <strong>complete paradigm shift</strong> that makes Git diff, Myers algorithm, copy-paste, line-number edits, and search-replace look like stone-age tools.</p>
<h4>🔮 Unique Innovations Not Found Anywhere Else</h4>
<div class="innovation-item">
<h5>🔮 Intelligent Algorithm Convergence</h5>
<p><strong>FIRST:</strong> Two completely different algorithms (Flash & Optimus) produce <strong>identical character counts and results</strong> while using entirely different approaches.</p>
<pre><code class="language-swift">// Flash: 3 operations, 14.5ms
// Optimus: 1256 operations, 43.7ms
// IDENTICAL RESULTS: 100% character-perfect match</code></pre>
</div>
<div class="innovation-item">
<h5>🧠 Automatic Source Type Detection</h5>
<p><strong>FIRST:</strong> Automatically detects whether you're applying a diff to full source document, truncated section, or partial content. <strong>No manual parameters needed.</strong></p>
</div>
<div class="innovation-item">
<h5>🔐 Built-in SHA256 Integrity Verification</h5>
<p><strong>SECURITY BREAKTHROUGH:</strong> Every diff includes cryptographic verification with SHA256 hash, automatic integrity checking, tamper detection, and round-trip verification.</p>
</div>
<div class="innovation-item">
<h5>↩️ Automatic Undo Generation</h5>
<p><strong>FIRST:</strong> Automatic reverse diff creation for instant rollback capability with zero configuration.</p>
<pre><code class="language-swift">let undoDiff = MultiLineDiff.createUndoDiff(from: originalDiff)
// Instant rollback capability with zero configuration</code></pre>
</div>
<h4>🏆 Superiority Over Existing Solutions</h4>
<table class="comparison-table">
<thead>
<tr>
<th>Feature</th>
<th>Git Diff</th>
<th>D1F MultiLineDiff</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Accuracy</strong></td>
<td>Line-based approximation</td>
<td>Character-perfect precision</td>
</tr>
<tr>
<td><strong>Context</strong></td>
<td>Static line numbers</td>
<td>Dynamic context matching</td>
</tr>
<tr>
<td><strong>Verification</strong></td>
<td>None</td>
<td>SHA256 + checksum</td>
</tr>
<tr>
<td><strong>Undo</strong></td>
<td>Manual reverse patches</td>
<td>Automatic undo generation</td>
</tr>
<tr>
<td><strong>AI Integration</strong></td>
<td>None</td>
<td>Native ASCII diff parsing</td>
</tr>
</tbody>
</table>
<h4>🎯 The Bottom Line</h4>
<p>D1F MultiLineDiff isn't just better than Git diff, Myers algorithm, copy-paste, line edits, or search-replace—<strong>it makes them obsolete</strong>.</p>
<p>This is the <strong>first and only</strong> diffing system that:</p>
<ul class="checkmark-list">
<li>✅ <strong>Preserves every character perfectly</strong></li>
<li>✅ <strong>Handles truncated patches intelligently</strong></li>
<li>✅ <strong>Provides cryptographic verification</strong></li>
<li>✅ <strong>Generates automatic undo operations</strong></li>
<li>✅ <strong>Works seamlessly with AI systems</strong></li>
<li>✅ <strong>Offers multiple algorithms for any need</strong></li>
<li>✅ <strong>Supports all I/O formats</strong></li>
<li>✅ <strong>Maintains complete metadata</strong></li>
</ul>
<p><a href="https://github.com/codefreezeai/swift-multi-line-diff/blob/main/NEW_SUMMARY_2025.md" target="_blank" class="external-link">📖 View Complete Features Documentation →</a></p>
</div>
</div>
<!-- API Reference Documentation -->
<div class="doc-content" id="api-reference-content">
<div class="doc-header">
<h3>📖 API Reference</h3>
<button class="doc-close">×</button>
</div>
<div class="doc-body">
<h4>Core Methods</h4>
<div class="api-method">
<h5>createDiff</h5>
<pre><code class="language-swift">public static func createDiff(
source: String,
destination: String,
algorithm: DiffAlgorithm = .megatron,
includeMetadata: Bool = true,
sourceStartLine: Int? = nil,
destStartLine: Int? = nil
) -> DiffResult</code></pre>
<p>Creates a diff between two strings using advanced diffing algorithms.</p>
</div>
<div class="api-method">
<h5>applyDiff</h5>
<pre><code class="language-swift">public static func applyDiff(
to source: String,
diff: DiffResult
) throws -> String</code></pre>