sample.md

Welcome to MarkdownRender

A beautiful macOS markdown renderer with Mermaid and Graphviz support.

Features

• Native macOS window with WebKit rendering
• Automatic dark/light mode support
• Live file watching with --watch flag
• Syntax highlighting for code blocks

Code Example

Here's some Swift code:

func greet(name: String) -> String {
    return "Hello, \(name)!"
}

let message = greet(name: "World")
print(message)

Mermaid Diagrams

Flowchart

flowchart TD
    A[Start] --> B{Is it working?}
    B -->|Yes| C[Great!]
    B -->|No| D[Debug]
    D --> B
    C --> E[End]

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Sequence Diagram

sequenceDiagram
    participant User
    participant CLI
    participant Window
    participant WebView

    User->>CLI: Run command
    CLI->>Window: Create window
    Window->>WebView: Load HTML
    WebView-->>User: Display rendered markdown

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Graphviz Diagrams

Simple Graph

digraph G {
    rankdir=LR;
    node [shape=box, style=rounded];

    Markdown -> Parser -> HTML -> WebView -> Display;
}

Component Diagram

digraph components {
    node [shape=component, style=filled, fillcolor=lightblue];

    subgraph cluster_app {
        label="Application";
        CLI [label="CLI\nEntry Point"];
        AppDelegate [label="App\nDelegate"];
        Window [label="NS\nWindow"];
    }

    subgraph cluster_render {
        label="Rendering";
        Parser [label="Markdown\nParser"];
        Generator [label="HTML\nGenerator"];
        WebView [label="WK\nWebView"];
    }

    CLI -> AppDelegate -> Window;
    Window -> WebView;
    Parser -> Generator -> WebView;
}

Tables

Feature	Status	Notes
Markdown	✅	Full CommonMark support
Mermaid	✅	Flowcharts, sequences, etc.
Graphviz	✅	DOT language support
Dark Mode	✅	Follows system preference

Blockquotes

"The best way to predict the future is to invent it." — Alan Kay

Task Lists

• Create CLI entry point
• Set up NSWindow
• Implement markdown parsing
• Add Mermaid support
• Add Graphviz support
• Add PDF export
• Add print support

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Built with Swift, AppKit, and WebKit