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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>mathjax extension sample</title>
<link href="https://cdn.jsdelivr.net/npm/prismjs@9000.0.1/themes/prism.min.css" rel="stylesheet">
<style>
body {
margin: 1em 50px;
}
/*锚点样式*/
h1:hover .octicon, h2:hover .octicon, h3:hover .octicon, h4:hover .octicon, h5:hover .octicon, h6:hover .octicon {
visibility: visible;
}
.anchor {
float: left;
line-height: 1;
margin-left: -20px;
padding-right: 4px;
}
.anchor:focus .octicon {
visibility: visible;
}
.octicon {
display: inline-block;
fill: currentColor;
color: #1b1f23;
vertical-align: middle;
visibility: hidden;
}
/* 目录样式 */
.cat ul {
list-style-type: none;
-webkit-margin-before: 0em;
-webkit-margin-after: 0em;
-webkit-margin-start: 0px;
-webkit-margin-end: 0px;
-webkit-padding-start: 0px;
}
.cat ul ul {
list-style-type: none;
-webkit-margin-before: 0em;
-webkit-margin-after: 0em;
-webkit-margin-start: 0px;
-webkit-margin-end: 0px;
-webkit-padding-start: 40px;
}
.cat li, li {
padding-top: 0em;
padding-bottom: 0em;
margin-top: 0;
margin-bottom: 0;
}
</style>
</head>
<body>
<div id="content"></div>
<textarea id="markdownText" hidden>
# showdown-extensions
An extension in showdown documents using markdown syntax
[Sample](http://excing.github.io/sample/extensions_sample.html)
- what is showdown
Showdown is a Javascript Markdown to HTML converter, based on the original works by John Gruber. Showdown can be used client side (in the browser) or server side (with NodeJs).
Check a live Demo here [http://demo.showdownjs.com/](http://demo.showdownjs.com/)
Click [showdown github](https://github.com/showdownjs/showdown)
- what is showdown extensions
Showdown allows additional functionality to be loaded via extensions
see [showdown extensions wiki](https://github.com/showdownjs/showdown/wiki/extensions)
## Usage
```java
var markdown = `# showdown-extensions`;
var converter = new showdown.Converter({extensions: ['exension-name_1', 'exension-name_2']}),
html = converter.makeHtml(markdown);
console.log(html);
```
## [showdoan-full-extensions.js](https://github.com/excing/showdown-extensions/blob/master/showdoan-full-extensions.js)
It contains all extensions, and rendering the subsequent operation has been completed.
you will need:
1. [showdown](https://github.com/showdownjs/showdown)
2. [prismjs](https://github.com/PrismJS/prism)
3. [raphael](https://github.com/DmitryBaranovskiy/raphael)
4. [underscore](https://github.com/jashkenas/underscore)
5. [js-sequence-diagrams](https://github.com/bramp/js-sequence-diagrams)
6. [flowchart.js](https://github.com/adrai/flowchart.js)
7. [MathJax](https://github.com/mathjax/MathJax)
recommend cdn:
1. [jsdelivr](https://www.jsdelivr.com/)
2. [cdnjs](https://cdnjs.com/):
recommend version:
- showdown: 1.5.0
- prismjs: 9000.0.1 (from jsdelivr cdn)
- raphael: 2.2.7
- underscore: 1.9.1
- js-sequence-diagrams: 1000000.0.6 (from jsdelivr cdn, this version can use the `raphael` library)
- flowchart.js: 1.11.3
- MathJax: 2.7.5
## extension list
### mathjax ([mathjax-extension.js](https://github.com/excing/showdown-extensions/blob/master/mathjax-extension.js))
Support for writing math formulas using `LaTex` syntax, then you can use the [Mathjax](https://github.com/mathjax/MathJax) plugin to display math formulas in web pages.
#### Markdown syntax
Please use `$` and `$$` to edit.
- Edit in a single line
```
The square area formula is: $S=a^2$.
```
- Multi-line editing
```
$$
\begin{alignat*}{2}
x& = y_1-y_2+y_3-y_5+y_8-\dots
&\quad& \\
& = y’\circ y^* && \\
& = y(0) y’ &&
\end{alignat*}
$$
```
#### Example
single line:
The square area formula is: $S=a^2$.
multi-line:
$$
\begin{alignat*}{2}
x& = y_1-y_2+y_3-y_5+y_8-\dots
&\quad& \\
& = y’\circ y^* && \\
& = y(0) y’ &&
\end{alignat*}
$$
### diagrams ([diagrams-extension.js](https://github.com/excing/showdown-extensions/blob/master/diagrams-extension.js))
Support for text format sequence diagrams and flowcharts, then you can use the [js-sequence-diagrams](https://github.com/bramp/js-sequence-diagrams) and [flowchart.js](https://github.com/adrai/flowchart.js) to display them.
#### Markdown syntax
use ` ```seq` and ` ```flow` to edit.
- sequence diagrams
```
Title: Here is a title
A->B: Normal line
B-->C: Dashed line
C-->C: Point to self
C->>D: Open arrow
D-->>A: Dashed open arrow
```
- flowchart
```
st=>start: Start:>http://www.google.com[blank]
e=>end:>http://www.google.com
op1=>operation: My Operation
sub1=>subroutine: My Subroutine
cond=>condition: Yes
or No?:>http://www.google.com
io=>inputoutput: catch something...
para=>parallel: parallel tasks
st->op1->cond
cond(yes)->io->e
cond(no)->para
para(path1, bottom)->sub1(right)->op1
para(path2, top)->op1
```
#### Example
sequence diagrams
```seq
Title: Here is a title
A->B: Normal line
B-->C: Dashed line
C-->C: Point to self
C->>D: Open arrow
D-->>A: Dashed open arrow
```
flowchart
```flow
st=>start: Start:>http://www.google.com[blank]
e=>end:>http://www.google.com
op1=>operation: My Operation
sub1=>subroutine: My Subroutine
cond=>condition: Yes
or No?:>http://www.google.com
io=>inputoutput: catch something...
para=>parallel: parallel tasks
st->op1->cond
cond(yes)->io->e
cond(no)->para
para(path1, bottom)->sub1(right)->op1
para(path2, top)->op1
```
### video ([video-extension.js](https://github.com/excing/showdown-extensions/blob/master/video-extension.js))
Support for the syntax of video display.
#### Markdown syntax
Simple:
```
```
Whole:
```
```
You can also use units:
```
=100x80 simple, assumes units are in px
=100x* sets the height to "auto"
=80%x5em width of 80% and height of 5em
```
#### Example
#### Support video format
- video/webm
- video/mp4
- video/ogg
### catalog ([catalog-extension.js](https://github.com/excing/showdown-extensions/blob/master/catalog-extension.js))
Support `<h1>` to `<h6>` catalog display.
#### Markdown syntax
A separate row: `[TOC]`
#### Example
[TOC]
### audio ([audio-extension.js](https://github.com/excing/showdown-extensions/blob/master/audio-extension.js))
Support for the syntax of audio display.
#### Markdown syntax
```
```
#### Example
#### Support video format
- audio/mpeg
- audio/wav
- audio/ogg
### anchor
Support for anchor buttons for `<h1>` to `<h6>` titles, the anchor style is GitHub anchor style.
#### Markdown syntax
Adapted directly `<h1>` to `<h6>` tag
</textarea>
<script src="https://cdn.jsdelivr.net/combine/npm/prismjs@9000.0.1,npm/prismjs@9000.0.1/components/prism-java.min.js,npm/prismjs@9000.0.1/components/prism-javascript.min.js,npm/prismjs@9000.0.1/components/prism-go.min.js,npm/prismjs@9000.0.1/components/prism-powershell.min.js,npm/prismjs@9000.0.1/components/prism-python.min.js,npm/prismjs@9000.0.1/components/prism-sql.min.js" ></script>
<script src="https://cdn.jsdelivr.net/combine/npm/showdown@1.5.0,npm/raphael@2.2.7,npm/underscore@1.9.1,npm/js-sequence-diagrams@1000000.0.6"></script>
<script src="https://cdn.jsdelivr.net/gh/adrai/flowchart.js@v1.11.3/release/flowchart.min.js"></script>
<script src="./showdown-full-extensions.js"></script>
<!-- <script src="./catalog-extension.js"></script>
<script src="./diagrams-extension.js"></script>
<script src="./mathjax-extension.js"></script>
<script src="./video-extension.js"></script>
<script src="./audio-extension.js"></script>
<script src="./anchor-extension.js"></script>
-->
<script src="./inner-markdown.js"></script>
<script>
var markdownTextArea = document.getElementById('markdownText');
var contentDiv = document.getElementById('content');
try {
innerMarkdownToContainer(contentDiv, markdownTextArea.textContent, ['mathjax', 'diagrams', 'video', 'audio', 'catalog', 'anchor']);
} catch (excp) {
contentDiv.innerHTML = excp
}
</script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
processEscapes: true
}
});
</script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
tex2jax: {
skipTags: ['script', 'noscript', 'style', 'textarea', 'pre', 'code']
}
});
</script>
<script type="text/x-mathjax-config">
MathJax.Hub.Queue(function() {
var all = MathJax.Hub.getAllJax(), i;
for(i=0; i < all.length; i += 1) {
all[i].SourceElement().parentNode.className += ' has-jax';
}
});
</script>
</body>
</html>