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lollms-webui/endpoints/docs/lollms_markdown_renderer/README.md

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add lollms markdown renderer
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## Documentation for `MarkdownRenderer` Library
The `MarkdownRenderer` library is a JavaScript class designed to render Markdown content into HTML. It supports various features such as code highlighting, LaTeX math rendering, Mermaid diagrams, and more. Below is a detailed explanation of how the library works, how to integrate it into an HTML file, and examples of its usage.
### Features
1. **Mermaid Diagrams**: Renders Mermaid diagrams from Markdown code blocks.
2. **Code Highlighting**: Uses Prism.js for syntax highlighting of code blocks.
3. **Math Equations**: Supports LaTeX-style math equations.
4. **Tables**: Converts Markdown tables into HTML tables.
5. **Text Formatting**: Handles headers, bold, italic, links, lists, blockquotes, and horizontal rules.
6. **Copy Code Functionality**: Allows users to copy code blocks with line numbers.
### Integration into an HTML File
To use the `MarkdownRenderer` library, you need to include several external libraries and stylesheets in your HTML file. Below is an example of how to set up your HTML file:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Markdown Renderer Example</title>
<!-- Highlight.js for code highlighting -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.5.1/styles/default.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.5.1/highlight.min.js"></script>
<!-- MathJax for LaTeX math rendering -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/3.2.0/es5/tex-mml-chtml.js"></script>
<!-- Mermaid for graph rendering -->
<script src="https://cdn.jsdelivr.net/npm/mermaid/dist/mermaid.min.js"></script>
<!-- Tailwind CSS -->
<script src="https://cdn.tailwindcss.com"></script>
<!-- Axios for HTTP requests -->
<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
<!-- Anime.js for animations -->
<script src="https://cdn.jsdelivr.net/npm/animejs@3.2.1/lib/anime.min.js"></script>
<!-- Prism CSS and JS for code highlighting -->
<link href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/themes/prism.min.css" rel="stylesheet">
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/prism.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/components/prism-javascript.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/components/prism-python.min.js"></script>
<!-- Add more languages as needed -->
upgraded
2024-09-20 20:45:45 +00:00
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.7.0/highlight.min.js"></script>
add lollms markdown renderer
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<!-- Include the MarkdownRenderer script -->
<script src="/lollms_assets/js/lollms_markdown_renderer"></script>
<link rel="stylesheet" href="/lollms_assets/css/lollms_markdown_renderer">
</head>
<body>
<div id="markdown-content">
<!-- Markdown content will be rendered here -->
</div>
<script>
// Initialize the MarkdownRenderer
const mr = new MarkdownRenderer();
// Example Markdown text
const markdownText = `
# Sample Markdown
This is a **bold** text and this is *italic* text.
## Code Block
\`\`\`javascript
console.log('Hello, World!');
\`\`\`
## Mermaid Diagram
\`\`\`mermaid
graph TD;
A-->B;
A-->C;
B-->D;
C-->D;
\`\`\`
## Math Equation
$$E = mc^2$$
## Table
| Name | Age |
|-------|-----|
| Alice | 24 |
| Bob | 30 |
`;
// Render the Markdown text
mr.renderMarkdown(markdownText).then(renderedHtml => {
document.getElementById('markdown-content').innerHTML = renderedHtml;
});
</script>
</body>
</html>
```
Or using async
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Markdown Renderer Example</title>
<!-- External Libraries -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.5.1/styles/default.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.5.1/highlight.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/3.2.0/es5/tex-mml-chtml.js"></script>
<script src="https://cdn.jsdelivr.net/npm/mermaid/dist/mermaid.min.js"></script>
<script src="https://cdn.tailwindcss.com"></script>
<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/animejs@3.2.1/lib/anime.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/themes/prism.min.css" rel="stylesheet">
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/prism.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/components/prism-javascript.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/components/prism-python.min.js"></script>
<!-- MarkdownRenderer -->
<script src="/lollms_assets/js/lollms_markdown_renderer"></script>
<link rel="stylesheet" href="/lollms_assets/css/lollms_markdown_renderer">
</head>
<body>
<div id="markdown-content"></div>
<script>
(async () => {
const mr = new MarkdownRenderer();
const markdownText = `
# Sample Markdown
**Bold** text, *italic* text.
## Code Block
\`\`\`javascript
console.log('Hello, World!');
\`\`\`
## Mermaid Diagram
\`\`\`mermaid
graph TD;
A-->B;
A-->C;
B-->D;
C-->D;
\`\`\`
## Math Equation
$$E = mc^2$$
## Table
| Name | Age |
|-------|-----|
| Alice | 24 |
| Bob | 30 |
`;
const renderedHtml = await mr.renderMarkdown(markdownText);
document.getElementById('markdown-content').innerHTML = renderedHtml;
})();
</script>
</body>
</html>
```
### Explanation of the Code
- **External Libraries**: The HTML file includes several external libraries such as Highlight.js, MathJax, Mermaid, Tailwind CSS, Axios, Anime.js, and Prism.js. These libraries are necessary for rendering code, math equations, diagrams, and styling.
- **MarkdownRenderer Initialization**: An instance of `MarkdownRenderer` is created and used to render Markdown text into HTML.
- **Rendering Markdown**: The `renderMarkdown` method is called with the Markdown text. It processes the text and converts it into HTML, which is then inserted into the `#markdown-content` div.
### Usage Examples
1. **Rendering Code Blocks**: The library uses Prism.js to highlight code blocks. You can specify the language for syntax highlighting by using the appropriate language identifier (e.g., `javascript`, `python`).
2. **Rendering Mermaid Diagrams**: Wrap your Mermaid code in a code block with the `mermaid` identifier to render diagrams.
3. **Rendering Math Equations**: Use LaTeX-style syntax for math equations. Inline equations can be wrapped in `$...$`, and block equations can be wrapped in `$$...$$`.
4. **Rendering Tables**: Markdown tables are automatically converted into HTML tables with proper styling.
5. **Copy Code Functionality**: Each code block includes a "Copy" button that allows users to copy the code with line numbers.
This documentation provides a comprehensive guide to using the `MarkdownRenderer` library. By following the integration steps and examples, you can easily render Markdown content in your web applications.
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