remark-svgbob

remark-svgbob is a plugin for Remark, a Markdown processor powered by plugins part of the unified collective, that converts ASCII diagrams within code blocks into crisp SVG images using the svgbob tool.

This allows you to seamlessly integrate ASCII art diagrams into your Markdown files and have them rendered as high-quality SVG images in the resulting HTML.

Features

remark-svgbob detects code blocks tagged with a specific language identifier (e.g., svgbob) in your Markdown and replaces them with corresponding SVG images.
SVG output is scalable and styleable with CSS, making it perfect for responsive designs.

Installation

Install remark-svgbob with npm:

npm install remark-svgbob

Usage

Import it and use it with Remark as follows:

import remark from "remark";
import remarkSVGBob from "remark-svgbob";

remark()
  .use(remarkSVGBob)
  .process(markdown, function (err, file) {
    if (err) throw err;
    console.log(String(file));
  });

Then write markdown

Use a code block with the language `svgbob`

```svgbob
       .---.
      /-o-/--
   .-/ / /->
  ( *  \/
   '-.  \
      \ /
       '
```

This will generate the following content:

Use a code block with the language `svgbob`

<span><svg xmlns="http://www.w3.org/2000/svg" width="136" height="112">
    <style>
        line, path, circle, rect, polygon{stroke:black;stroke-width:2;stroke-opacity:1;fill-opacity:1;stroke-linecap:round;stroke-linejoin:miter;}text{font-family:Iosevka Fixed, monospace;font-size:14px;}rect.backdrop{stroke:none;fill:transparent;}.broken{stroke-dasharray:8;}.filled{fill:black;}.bg_filled{fill:transparent;}.nofill{fill:transparent;}.end_marked_arrow{marker-end:url(#arrow);}.start_marked_arrow{marker-start:url(#arrow);}.end_marked_diamond{marker-end:url(#diamond);}.start_marked_diamond{marker-start:url(#diamond);}.end_marked_circle{marker-end:url(#circle);}.start_marked_circle{marker-start:url(#circle);}.end_marked_open_circle{marker-end:url(#open_circle);}.start_marked_open_circle{marker-start:url(#open_circle);}.end_marked_big_open_circle{marker-end:url(#big_open_circle);}.start_marked_big_open_circle{marker-start:url(#big_open_circle);}
        <!--separator-->

    </style>
    <defs>
        <marker id="arrow" viewBox="-2 -2 8 8" refX="4" refY="2" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
            <polygon points="0,0 0,4 4,2 0,0"></polygon>
        </marker>
        <marker id="diamond" viewBox="-2 -2 8 8" refX="4" refY="2" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
            <polygon points="0,2 2,0 4,2 2,4 0,2"></polygon>
        </marker>
        <marker id="circle" viewBox="0 0 8 8" refX="4" refY="4" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
            <circle cx="4" cy="4" r="2" class="filled"></circle>
        </marker>
        <marker id="open_circle" viewBox="0 0 8 8" refX="4" refY="4" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
            <circle cx="4" cy="4" r="2" class="bg_filled"></circle>
        </marker>
        <marker id="big_open_circle" viewBox="0 0 8 8" refX="4" refY="4" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
            <circle cx="4" cy="4" r="3" class="bg_filled"></circle>
        </marker>
    </defs>
    <rect class="backdrop" x="0" y="0" width="136" height="112"></rect>
    <circle cx="68" cy="24" r="3" class="nofill"></circle>
    <line x1="66" y1="28" x2="56" y2="48" class="solid"></line>
    <line x1="72" y1="24" x2="104" y2="24" class="solid"></line>
    <circle cx="36" cy="56" r="3" class="filled"></circle>
    <line x1="64" y1="48" x2="56" y2="64" class="solid"></line>
    <text x="42" y="76" >.</text>
    <line x1="128" y1="64" x2="120" y2="80" class="solid"></line>
    <text x="58" y="92" >&#39;</text>
    <g>
        <path d="M 64,8 A 8,8 0,0,0 58,12" class="nofill"></path>
        <line x1="58" y1="12" x2="38" y2="52" class="solid"></line>
        <line x1="64" y1="8" x2="88" y2="8" class="solid"></line>
        <path d="M 88,8 A 3,3 0,0,1 90,12" class="nofill"></path>
        <line x1="90" y1="12" x2="72" y2="48" class="solid"></line>
        <line x1="52" y1="24" x2="64" y2="24" class="solid"></line>
        <line x1="76" y1="40" x2="88" y2="40" class="solid"></line>
        <polygon points="88,36 96,40 88,44" class="filled"></polygon>
        <path d="M 32,40 A 8,8 0,0,0 26,44" class="nofill"></path>
        <line x1="26" y1="44" x2="24" y2="48" class="solid"></line>
        <line x1="32" y1="40" x2="44" y2="40" class="solid"></line>
        <path d="M 24,48 A 16,16 0,0,0 24,64" class="nofill"></path>
        <line x1="24" y1="64" x2="26" y2="68" class="solid"></line>
        <path d="M 26,68 A 8,8 0,0,0 32,72" class="nofill"></path>
        <line x1="32" y1="72" x2="40" y2="72" class="solid"></line>
    </g>
</svg></span>

Contributing

Contributions are always welcome! Feel free to fork the repository, make changes, and submit a pull request.

License

Distributed under the MIT License. See LICENSE file for more information.

Note: The remark-svgbob plugin is not officially associated with svgbob.

EmNudge / remark-svgbob