65 lines
1.7 KiB
Markdown
65 lines
1.7 KiB
Markdown
# Auto-render extension
|
|
|
|
This is an extension to automatically render all of the math inside of text. It
|
|
searches all of the text nodes in a given element for the given delimiters, and
|
|
renders the math in place.
|
|
|
|
### Usage
|
|
|
|
This extension isn't part of KaTeX proper, so the script should be separately
|
|
included in the page:
|
|
|
|
```html
|
|
<script src="/path/to/auto-render.min.js"></script>
|
|
```
|
|
|
|
Then, call the exposed `renderMathInElement` function in a script tag
|
|
before the close body tag:
|
|
|
|
```html
|
|
<body>
|
|
...
|
|
<script>
|
|
renderMathInElement(document.body);
|
|
</script>
|
|
</body>
|
|
```
|
|
|
|
See [index.html](index.html) for an example.
|
|
|
|
### API
|
|
|
|
This extension exposes a single function, `window.renderMathInElement`, with
|
|
the following API:
|
|
|
|
```js
|
|
function renderMathInElement(elem, options)
|
|
```
|
|
|
|
`elem` is an HTML DOM element. The function will recursively search for text
|
|
nodes inside this element and render the math in them.
|
|
|
|
`options` is an optional object argument with the following keys:
|
|
|
|
- `delimiters`: This is a list of delimiters to look for math. Each delimiter
|
|
has three properties:
|
|
|
|
- `left`: A string which starts the math expression (i.e. the left delimiter).
|
|
- `right`: A string which ends the math expression (i.e. the right delimiter).
|
|
- `display`: A boolean of whether the math in the expression should be
|
|
rendered in display mode or not.
|
|
|
|
The default value is:
|
|
|
|
```js
|
|
[
|
|
{left: "$$", right: "$$", display: true},
|
|
{left: "\\[", right: "\\]", display: true},
|
|
{left: "\\(", right: "\\)", display: false}
|
|
]
|
|
```
|
|
|
|
- `ignoredTags`: This is a list of DOM node types to ignore when recursing
|
|
through. The default value is
|
|
`["script", "noscript", "style", "textarea", "pre", "code"]`.
|