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125
katex/README.md
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125
katex/README.md
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@ -0,0 +1,125 @@
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||||
<h1><a href="https://katex.org/">
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||||
<picture>
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||||
<source media="(prefers-color-scheme: dark)" srcset="https://katex.org/img/katex-logo.svg">
|
||||
<img alt="KaTeX" width=130 src="https://katex.org/img/katex-logo-black.svg">
|
||||
</picture>
|
||||
</a></h1>
|
||||
|
||||
[](https://www.npmjs.com/package/katex)
|
||||
[](https://github.com/semantic-release/semantic-release)
|
||||
[](https://github.com/KaTeX/KaTeX/actions?query=workflow%3ACI)
|
||||
[](https://codecov.io/gh/KaTeX/KaTeX)
|
||||
[](https://github.com/KaTeX/KaTeX/discussions)
|
||||
[](https://www.jsdelivr.com/package/npm/katex)
|
||||
|
||||
[](https://gitpod.io/#https://github.com/KaTeX/KaTeX)
|
||||
[](https://opencollective.com/katex)
|
||||
|
||||
KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web.
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||||
|
||||
* **Fast:** KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in [this speed test](https://www.intmath.com/cg5/katex-mathjax-comparison.php).
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||||
* **Print quality:** KaTeX's layout is based on Donald Knuth's TeX, the gold standard for math typesetting.
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||||
* **Self contained:** KaTeX has no dependencies and can easily be bundled with your website resources.
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||||
* **Server side rendering:** KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML.
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||||
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||||
KaTeX is compatible with all major browsers, including Chrome, Safari, Firefox, Opera, Edge, and IE 11.
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||||
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||||
KaTeX supports much (but not all) of LaTeX and many LaTeX packages. See the [list of supported functions](https://katex.org/docs/supported.html).
|
||||
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||||
Try out KaTeX [on the demo page](https://katex.org/#demo)!
|
||||
|
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## Getting started
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### Starter template
|
||||
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||||
```html
|
||||
<!DOCTYPE html>
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<!-- KaTeX requires the use of the HTML5 doctype. Without it, KaTeX may not render properly -->
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<html>
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<head>
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||||
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.15/dist/katex.min.css" integrity="sha384-Htz9HMhiwV8GuQ28Xr9pEs1B4qJiYu/nYLLwlDklR53QibDfmQzi7rYxXhMH/5/u" crossorigin="anonymous">
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||||
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||||
<!-- The loading of KaTeX is deferred to speed up page rendering -->
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||||
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.15/dist/katex.min.js" integrity="sha384-bxmi2jLGCvnsEqMuYLKE/KsVCxV3PqmKeK6Y6+lmNXBry6+luFkEOsmp5vD9I/7+" crossorigin="anonymous"></script>
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||||
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||||
<!-- To automatically render math in text elements, include the auto-render extension: -->
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<script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.15/dist/contrib/auto-render.min.js" integrity="sha384-hCXGrW6PitJEwbkoStFjeJxv+fSOOQKOPbJxSfM6G5sWZjAyWhXiTIIAmQqnlLlh" crossorigin="anonymous"
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||||
onload="renderMathInElement(document.body);"></script>
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||||
</head>
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||||
...
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||||
</html>
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||||
```
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||||
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||||
You can also [download KaTeX](https://github.com/KaTeX/KaTeX/releases) and host it yourself.
|
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For details on how to configure auto-render extension, refer to [the documentation](https://katex.org/docs/autorender.html).
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### API
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||||
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Call `katex.render` to render a TeX expression directly into a DOM element.
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For example:
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||||
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```js
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||||
katex.render("c = \\pm\\sqrt{a^2 + b^2}", element, {
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throwOnError: false
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});
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```
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Call `katex.renderToString` to generate an HTML string of the rendered math,
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e.g., for server-side rendering. For example:
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```js
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var html = katex.renderToString("c = \\pm\\sqrt{a^2 + b^2}", {
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throwOnError: false
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});
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// '<span class="katex">...</span>'
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||||
```
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|
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Make sure to include the CSS and font files in both cases.
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||||
If you are doing all rendering on the server, there is no need to include the
|
||||
JavaScript on the client.
|
||||
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||||
The examples above use the `throwOnError: false` option, which renders invalid
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inputs as the TeX source code in red (by default), with the error message as
|
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hover text. For other available options, see the
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||||
[API documentation](https://katex.org/docs/api.html),
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||||
[options documentation](https://katex.org/docs/options.html), and
|
||||
[handling errors documentation](https://katex.org/docs/error.html).
|
||||
|
||||
## Demo and Documentation
|
||||
|
||||
Learn more about using KaTeX [on the website](https://katex.org)!
|
||||
|
||||
## Contributors
|
||||
|
||||
### Code Contributors
|
||||
|
||||
This project exists thanks to all the people who contribute code. If you'd like to help, see [our guide to contributing code](CONTRIBUTING.md).
|
||||
<a href="https://github.com/KaTeX/KaTeX/graphs/contributors"><img src="https://contributors-svg.opencollective.com/katex/contributors.svg?width=890&button=false" alt="Code contributors" /></a>
|
||||
|
||||
### Financial Contributors
|
||||
|
||||
Become a financial contributor and help us sustain our community.
|
||||
|
||||
#### Individuals
|
||||
|
||||
<a href="https://opencollective.com/katex"><img src="https://opencollective.com/katex/individuals.svg?width=890" alt="Contribute on Open Collective"></a>
|
||||
|
||||
#### Organizations
|
||||
|
||||
Support this project with your organization. Your logo will show up here with a link to your website.
|
||||
|
||||
<a href="https://opencollective.com/katex/organization/0/website"><img src="https://opencollective.com/katex/organization/0/avatar.svg" alt="Organization 1"></a>
|
||||
<a href="https://opencollective.com/katex/organization/1/website"><img src="https://opencollective.com/katex/organization/1/avatar.svg" alt="Organization 2"></a>
|
||||
<a href="https://opencollective.com/katex/organization/2/website"><img src="https://opencollective.com/katex/organization/2/avatar.svg" alt="Organization 3"></a>
|
||||
<a href="https://opencollective.com/katex/organization/3/website"><img src="https://opencollective.com/katex/organization/3/avatar.svg" alt="Organization 4"></a>
|
||||
<a href="https://opencollective.com/katex/organization/4/website"><img src="https://opencollective.com/katex/organization/4/avatar.svg" alt="Organization 5"></a>
|
||||
<a href="https://opencollective.com/katex/organization/5/website"><img src="https://opencollective.com/katex/organization/5/avatar.svg" alt="Organization 6"></a>
|
||||
<a href="https://opencollective.com/katex/organization/6/website"><img src="https://opencollective.com/katex/organization/6/avatar.svg" alt="Organization 7"></a>
|
||||
<a href="https://opencollective.com/katex/organization/7/website"><img src="https://opencollective.com/katex/organization/7/avatar.svg" alt="Organization 8"></a>
|
||||
<a href="https://opencollective.com/katex/organization/8/website"><img src="https://opencollective.com/katex/organization/8/avatar.svg" alt="Organization 9"></a>
|
||||
<a href="https://opencollective.com/katex/organization/9/website"><img src="https://opencollective.com/katex/organization/9/avatar.svg" alt="Organization 10"></a>
|
||||
|
||||
## License
|
||||
|
||||
KaTeX is licensed under the [MIT License](https://opensource.org/licenses/MIT).
|
||||
338
katex/contrib/auto-render.js
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338
katex/contrib/auto-render.js
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||||
(function webpackUniversalModuleDefinition(root, factory) {
|
||||
if(typeof exports === 'object' && typeof module === 'object')
|
||||
module.exports = factory(require("katex"));
|
||||
else if(typeof define === 'function' && define.amd)
|
||||
define(["katex"], factory);
|
||||
else if(typeof exports === 'object')
|
||||
exports["renderMathInElement"] = factory(require("katex"));
|
||||
else
|
||||
root["renderMathInElement"] = factory(root["katex"]);
|
||||
})((typeof self !== 'undefined' ? self : this), function(__WEBPACK_EXTERNAL_MODULE__757__) {
|
||||
return /******/ (function() { // webpackBootstrap
|
||||
/******/ "use strict";
|
||||
/******/ var __webpack_modules__ = ({
|
||||
|
||||
/***/ 757:
|
||||
/***/ (function(module) {
|
||||
|
||||
module.exports = __WEBPACK_EXTERNAL_MODULE__757__;
|
||||
|
||||
/***/ })
|
||||
|
||||
/******/ });
|
||||
/************************************************************************/
|
||||
/******/ // The module cache
|
||||
/******/ var __webpack_module_cache__ = {};
|
||||
/******/
|
||||
/******/ // The require function
|
||||
/******/ function __webpack_require__(moduleId) {
|
||||
/******/ // Check if module is in cache
|
||||
/******/ var cachedModule = __webpack_module_cache__[moduleId];
|
||||
/******/ if (cachedModule !== undefined) {
|
||||
/******/ return cachedModule.exports;
|
||||
/******/ }
|
||||
/******/ // Create a new module (and put it into the cache)
|
||||
/******/ var module = __webpack_module_cache__[moduleId] = {
|
||||
/******/ // no module.id needed
|
||||
/******/ // no module.loaded needed
|
||||
/******/ exports: {}
|
||||
/******/ };
|
||||
/******/
|
||||
/******/ // Execute the module function
|
||||
/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
|
||||
/******/
|
||||
/******/ // Return the exports of the module
|
||||
/******/ return module.exports;
|
||||
/******/ }
|
||||
/******/
|
||||
/************************************************************************/
|
||||
/******/ /* webpack/runtime/compat get default export */
|
||||
/******/ !function() {
|
||||
/******/ // getDefaultExport function for compatibility with non-harmony modules
|
||||
/******/ __webpack_require__.n = function(module) {
|
||||
/******/ var getter = module && module.__esModule ?
|
||||
/******/ function() { return module['default']; } :
|
||||
/******/ function() { return module; };
|
||||
/******/ __webpack_require__.d(getter, { a: getter });
|
||||
/******/ return getter;
|
||||
/******/ };
|
||||
/******/ }();
|
||||
/******/
|
||||
/******/ /* webpack/runtime/define property getters */
|
||||
/******/ !function() {
|
||||
/******/ // define getter functions for harmony exports
|
||||
/******/ __webpack_require__.d = function(exports, definition) {
|
||||
/******/ for(var key in definition) {
|
||||
/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
|
||||
/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
|
||||
/******/ }
|
||||
/******/ }
|
||||
/******/ };
|
||||
/******/ }();
|
||||
/******/
|
||||
/******/ /* webpack/runtime/hasOwnProperty shorthand */
|
||||
/******/ !function() {
|
||||
/******/ __webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }
|
||||
/******/ }();
|
||||
/******/
|
||||
/************************************************************************/
|
||||
var __webpack_exports__ = {};
|
||||
|
||||
// EXPORTS
|
||||
__webpack_require__.d(__webpack_exports__, {
|
||||
"default": function() { return /* binding */ auto_render; }
|
||||
});
|
||||
|
||||
// EXTERNAL MODULE: external "katex"
|
||||
var external_katex_ = __webpack_require__(757);
|
||||
var external_katex_default = /*#__PURE__*/__webpack_require__.n(external_katex_);
|
||||
;// CONCATENATED MODULE: ./contrib/auto-render/splitAtDelimiters.js
|
||||
/* eslint no-constant-condition:0 */
|
||||
const findEndOfMath = function (delimiter, text, startIndex) {
|
||||
// Adapted from
|
||||
// https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx
|
||||
let index = startIndex;
|
||||
let braceLevel = 0;
|
||||
const delimLength = delimiter.length;
|
||||
|
||||
while (index < text.length) {
|
||||
const character = text[index];
|
||||
|
||||
if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) {
|
||||
return index;
|
||||
} else if (character === "\\") {
|
||||
index++;
|
||||
} else if (character === "{") {
|
||||
braceLevel++;
|
||||
} else if (character === "}") {
|
||||
braceLevel--;
|
||||
}
|
||||
|
||||
index++;
|
||||
}
|
||||
|
||||
return -1;
|
||||
};
|
||||
|
||||
const escapeRegex = function (string) {
|
||||
return string.replace(/[-/\\^$*+?.()|[\]{}]/g, "\\$&");
|
||||
};
|
||||
|
||||
const amsRegex = /^\\begin{/;
|
||||
|
||||
const splitAtDelimiters = function (text, delimiters) {
|
||||
let index;
|
||||
const data = [];
|
||||
const regexLeft = new RegExp("(" + delimiters.map(x => escapeRegex(x.left)).join("|") + ")");
|
||||
|
||||
while (true) {
|
||||
index = text.search(regexLeft);
|
||||
|
||||
if (index === -1) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (index > 0) {
|
||||
data.push({
|
||||
type: "text",
|
||||
data: text.slice(0, index)
|
||||
});
|
||||
text = text.slice(index); // now text starts with delimiter
|
||||
} // ... so this always succeeds:
|
||||
|
||||
|
||||
const i = delimiters.findIndex(delim => text.startsWith(delim.left));
|
||||
index = findEndOfMath(delimiters[i].right, text, delimiters[i].left.length);
|
||||
|
||||
if (index === -1) {
|
||||
break;
|
||||
}
|
||||
|
||||
const rawData = text.slice(0, index + delimiters[i].right.length);
|
||||
const math = amsRegex.test(rawData) ? rawData : text.slice(delimiters[i].left.length, index);
|
||||
data.push({
|
||||
type: "math",
|
||||
data: math,
|
||||
rawData,
|
||||
display: delimiters[i].display
|
||||
});
|
||||
text = text.slice(index + delimiters[i].right.length);
|
||||
}
|
||||
|
||||
if (text !== "") {
|
||||
data.push({
|
||||
type: "text",
|
||||
data: text
|
||||
});
|
||||
}
|
||||
|
||||
return data;
|
||||
};
|
||||
|
||||
/* harmony default export */ var auto_render_splitAtDelimiters = (splitAtDelimiters);
|
||||
;// CONCATENATED MODULE: ./contrib/auto-render/auto-render.js
|
||||
/* eslint no-console:0 */
|
||||
|
||||
|
||||
/* Note: optionsCopy is mutated by this method. If it is ever exposed in the
|
||||
* API, we should copy it before mutating.
|
||||
*/
|
||||
|
||||
const renderMathInText = function (text, optionsCopy) {
|
||||
const data = auto_render_splitAtDelimiters(text, optionsCopy.delimiters);
|
||||
|
||||
if (data.length === 1 && data[0].type === 'text') {
|
||||
// There is no formula in the text.
|
||||
// Let's return null which means there is no need to replace
|
||||
// the current text node with a new one.
|
||||
return null;
|
||||
}
|
||||
|
||||
const fragment = document.createDocumentFragment();
|
||||
|
||||
for (let i = 0; i < data.length; i++) {
|
||||
if (data[i].type === "text") {
|
||||
fragment.appendChild(document.createTextNode(data[i].data));
|
||||
} else {
|
||||
const span = document.createElement("span");
|
||||
let math = data[i].data; // Override any display mode defined in the settings with that
|
||||
// defined by the text itself
|
||||
|
||||
optionsCopy.displayMode = data[i].display;
|
||||
|
||||
try {
|
||||
if (optionsCopy.preProcess) {
|
||||
math = optionsCopy.preProcess(math);
|
||||
}
|
||||
|
||||
external_katex_default().render(math, span, optionsCopy);
|
||||
} catch (e) {
|
||||
if (!(e instanceof (external_katex_default()).ParseError)) {
|
||||
throw e;
|
||||
}
|
||||
|
||||
optionsCopy.errorCallback("KaTeX auto-render: Failed to parse `" + data[i].data + "` with ", e);
|
||||
fragment.appendChild(document.createTextNode(data[i].rawData));
|
||||
continue;
|
||||
}
|
||||
|
||||
fragment.appendChild(span);
|
||||
}
|
||||
}
|
||||
|
||||
return fragment;
|
||||
};
|
||||
|
||||
const renderElem = function (elem, optionsCopy) {
|
||||
for (let i = 0; i < elem.childNodes.length; i++) {
|
||||
const childNode = elem.childNodes[i];
|
||||
|
||||
if (childNode.nodeType === 3) {
|
||||
// Text node
|
||||
// Concatenate all sibling text nodes.
|
||||
// Webkit browsers split very large text nodes into smaller ones,
|
||||
// so the delimiters may be split across different nodes.
|
||||
let textContentConcat = childNode.textContent;
|
||||
let sibling = childNode.nextSibling;
|
||||
let nSiblings = 0;
|
||||
|
||||
while (sibling && sibling.nodeType === Node.TEXT_NODE) {
|
||||
textContentConcat += sibling.textContent;
|
||||
sibling = sibling.nextSibling;
|
||||
nSiblings++;
|
||||
}
|
||||
|
||||
const frag = renderMathInText(textContentConcat, optionsCopy);
|
||||
|
||||
if (frag) {
|
||||
// Remove extra text nodes
|
||||
for (let j = 0; j < nSiblings; j++) {
|
||||
childNode.nextSibling.remove();
|
||||
}
|
||||
|
||||
i += frag.childNodes.length - 1;
|
||||
elem.replaceChild(frag, childNode);
|
||||
} else {
|
||||
// If the concatenated text does not contain math
|
||||
// the siblings will not either
|
||||
i += nSiblings;
|
||||
}
|
||||
} else if (childNode.nodeType === 1) {
|
||||
// Element node
|
||||
const className = ' ' + childNode.className + ' ';
|
||||
const shouldRender = optionsCopy.ignoredTags.indexOf(childNode.nodeName.toLowerCase()) === -1 && optionsCopy.ignoredClasses.every(x => className.indexOf(' ' + x + ' ') === -1);
|
||||
|
||||
if (shouldRender) {
|
||||
renderElem(childNode, optionsCopy);
|
||||
}
|
||||
} // Otherwise, it's something else, and ignore it.
|
||||
|
||||
}
|
||||
};
|
||||
|
||||
const renderMathInElement = function (elem, options) {
|
||||
if (!elem) {
|
||||
throw new Error("No element provided to render");
|
||||
}
|
||||
|
||||
const optionsCopy = {}; // Object.assign(optionsCopy, option)
|
||||
|
||||
for (const option in options) {
|
||||
if (options.hasOwnProperty(option)) {
|
||||
optionsCopy[option] = options[option];
|
||||
}
|
||||
} // default options
|
||||
|
||||
|
||||
optionsCopy.delimiters = optionsCopy.delimiters || [{
|
||||
left: "$$",
|
||||
right: "$$",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\(",
|
||||
right: "\\)",
|
||||
display: false
|
||||
}, // LaTeX uses $…$, but it ruins the display of normal `$` in text:
|
||||
// {left: "$", right: "$", display: false},
|
||||
// $ must come after $$
|
||||
// Render AMS environments even if outside $$…$$ delimiters.
|
||||
{
|
||||
left: "\\begin{equation}",
|
||||
right: "\\end{equation}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\begin{align}",
|
||||
right: "\\end{align}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\begin{alignat}",
|
||||
right: "\\end{alignat}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\begin{gather}",
|
||||
right: "\\end{gather}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\begin{CD}",
|
||||
right: "\\end{CD}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\[",
|
||||
right: "\\]",
|
||||
display: true
|
||||
}];
|
||||
optionsCopy.ignoredTags = optionsCopy.ignoredTags || ["script", "noscript", "style", "textarea", "pre", "code", "option"];
|
||||
optionsCopy.ignoredClasses = optionsCopy.ignoredClasses || [];
|
||||
optionsCopy.errorCallback = optionsCopy.errorCallback || console.error; // Enable sharing of global macros defined via `\gdef` between different
|
||||
// math elements within a single call to `renderMathInElement`.
|
||||
|
||||
optionsCopy.macros = optionsCopy.macros || {};
|
||||
renderElem(elem, optionsCopy);
|
||||
};
|
||||
|
||||
/* harmony default export */ var auto_render = (renderMathInElement);
|
||||
__webpack_exports__ = __webpack_exports__["default"];
|
||||
/******/ return __webpack_exports__;
|
||||
/******/ })()
|
||||
;
|
||||
});
|
||||
1
katex/contrib/auto-render.min.js
vendored
Normal file
1
katex/contrib/auto-render.min.js
vendored
Normal file
@ -0,0 +1 @@
|
||||
!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("katex")):"function"==typeof define&&define.amd?define(["katex"],t):"object"==typeof exports?exports.renderMathInElement=t(require("katex")):e.renderMathInElement=t(e.katex)}("undefined"!=typeof self?self:this,(function(e){return function(){"use strict";var t={757:function(t){t.exports=e}},n={};function r(e){var o=n[e];if(void 0!==o)return o.exports;var i=n[e]={exports:{}};return t[e](i,i.exports,r),i.exports}r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,{a:t}),t},r.d=function(e,t){for(var n in t)r.o(t,n)&&!r.o(e,n)&&Object.defineProperty(e,n,{enumerable:!0,get:t[n]})},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)};var o={};r.d(o,{default:function(){return p}});var i=r(757),a=r.n(i);const l=function(e,t,n){let r=n,o=0;const i=e.length;for(;r<t.length;){const n=t[r];if(o<=0&&t.slice(r,r+i)===e)return r;"\\"===n?r++:"{"===n?o++:"}"===n&&o--,r++}return-1},s=/^\\begin{/;var d=function(e,t){let n;const r=[],o=new RegExp("("+t.map((e=>e.left.replace(/[-/\\^$*+?.()|[\]{}]/g,"\\$&"))).join("|")+")");for(;n=e.search(o),-1!==n;){n>0&&(r.push({type:"text",data:e.slice(0,n)}),e=e.slice(n));const o=t.findIndex((t=>e.startsWith(t.left)));if(n=l(t[o].right,e,t[o].left.length),-1===n)break;const i=e.slice(0,n+t[o].right.length),a=s.test(i)?i:e.slice(t[o].left.length,n);r.push({type:"math",data:a,rawData:i,display:t[o].display}),e=e.slice(n+t[o].right.length)}return""!==e&&r.push({type:"text",data:e}),r};const c=function(e,t){const n=d(e,t.delimiters);if(1===n.length&&"text"===n[0].type)return null;const r=document.createDocumentFragment();for(let e=0;e<n.length;e++)if("text"===n[e].type)r.appendChild(document.createTextNode(n[e].data));else{const o=document.createElement("span");let i=n[e].data;t.displayMode=n[e].display;try{t.preProcess&&(i=t.preProcess(i)),a().render(i,o,t)}catch(o){if(!(o instanceof a().ParseError))throw o;t.errorCallback("KaTeX auto-render: Failed to parse `"+n[e].data+"` with ",o),r.appendChild(document.createTextNode(n[e].rawData));continue}r.appendChild(o)}return r},f=function(e,t){for(let n=0;n<e.childNodes.length;n++){const r=e.childNodes[n];if(3===r.nodeType){let o=r.textContent,i=r.nextSibling,a=0;for(;i&&i.nodeType===Node.TEXT_NODE;)o+=i.textContent,i=i.nextSibling,a++;const l=c(o,t);if(l){for(let e=0;e<a;e++)r.nextSibling.remove();n+=l.childNodes.length-1,e.replaceChild(l,r)}else n+=a}else if(1===r.nodeType){const e=" "+r.className+" ";-1===t.ignoredTags.indexOf(r.nodeName.toLowerCase())&&t.ignoredClasses.every((t=>-1===e.indexOf(" "+t+" ")))&&f(r,t)}}};var p=function(e,t){if(!e)throw new Error("No element provided to render");const n={};for(const e in t)t.hasOwnProperty(e)&&(n[e]=t[e]);n.delimiters=n.delimiters||[{left:"$$",right:"$$",display:!0},{left:"\\(",right:"\\)",display:!1},{left:"\\begin{equation}",right:"\\end{equation}",display:!0},{left:"\\begin{align}",right:"\\end{align}",display:!0},{left:"\\begin{alignat}",right:"\\end{alignat}",display:!0},{left:"\\begin{gather}",right:"\\end{gather}",display:!0},{left:"\\begin{CD}",right:"\\end{CD}",display:!0},{left:"\\[",right:"\\]",display:!0}],n.ignoredTags=n.ignoredTags||["script","noscript","style","textarea","pre","code","option"],n.ignoredClasses=n.ignoredClasses||[],n.errorCallback=n.errorCallback||console.error,n.macros=n.macros||{},f(e,n)};return o=o.default}()}));
|
||||
244
katex/contrib/auto-render.mjs
Normal file
244
katex/contrib/auto-render.mjs
Normal file
@ -0,0 +1,244 @@
|
||||
import katex from '../katex.mjs';
|
||||
|
||||
/* eslint no-constant-condition:0 */
|
||||
var findEndOfMath = function findEndOfMath(delimiter, text, startIndex) {
|
||||
// Adapted from
|
||||
// https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx
|
||||
var index = startIndex;
|
||||
var braceLevel = 0;
|
||||
var delimLength = delimiter.length;
|
||||
|
||||
while (index < text.length) {
|
||||
var character = text[index];
|
||||
|
||||
if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) {
|
||||
return index;
|
||||
} else if (character === "\\") {
|
||||
index++;
|
||||
} else if (character === "{") {
|
||||
braceLevel++;
|
||||
} else if (character === "}") {
|
||||
braceLevel--;
|
||||
}
|
||||
|
||||
index++;
|
||||
}
|
||||
|
||||
return -1;
|
||||
};
|
||||
|
||||
var escapeRegex = function escapeRegex(string) {
|
||||
return string.replace(/[-/\\^$*+?.()|[\]{}]/g, "\\$&");
|
||||
};
|
||||
|
||||
var amsRegex = /^\\begin{/;
|
||||
|
||||
var splitAtDelimiters = function splitAtDelimiters(text, delimiters) {
|
||||
var index;
|
||||
var data = [];
|
||||
var regexLeft = new RegExp("(" + delimiters.map(x => escapeRegex(x.left)).join("|") + ")");
|
||||
|
||||
while (true) {
|
||||
index = text.search(regexLeft);
|
||||
|
||||
if (index === -1) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (index > 0) {
|
||||
data.push({
|
||||
type: "text",
|
||||
data: text.slice(0, index)
|
||||
});
|
||||
text = text.slice(index); // now text starts with delimiter
|
||||
} // ... so this always succeeds:
|
||||
|
||||
|
||||
var i = delimiters.findIndex(delim => text.startsWith(delim.left));
|
||||
index = findEndOfMath(delimiters[i].right, text, delimiters[i].left.length);
|
||||
|
||||
if (index === -1) {
|
||||
break;
|
||||
}
|
||||
|
||||
var rawData = text.slice(0, index + delimiters[i].right.length);
|
||||
var math = amsRegex.test(rawData) ? rawData : text.slice(delimiters[i].left.length, index);
|
||||
data.push({
|
||||
type: "math",
|
||||
data: math,
|
||||
rawData,
|
||||
display: delimiters[i].display
|
||||
});
|
||||
text = text.slice(index + delimiters[i].right.length);
|
||||
}
|
||||
|
||||
if (text !== "") {
|
||||
data.push({
|
||||
type: "text",
|
||||
data: text
|
||||
});
|
||||
}
|
||||
|
||||
return data;
|
||||
};
|
||||
|
||||
/* eslint no-console:0 */
|
||||
/* Note: optionsCopy is mutated by this method. If it is ever exposed in the
|
||||
* API, we should copy it before mutating.
|
||||
*/
|
||||
|
||||
var renderMathInText = function renderMathInText(text, optionsCopy) {
|
||||
var data = splitAtDelimiters(text, optionsCopy.delimiters);
|
||||
|
||||
if (data.length === 1 && data[0].type === 'text') {
|
||||
// There is no formula in the text.
|
||||
// Let's return null which means there is no need to replace
|
||||
// the current text node with a new one.
|
||||
return null;
|
||||
}
|
||||
|
||||
var fragment = document.createDocumentFragment();
|
||||
|
||||
for (var i = 0; i < data.length; i++) {
|
||||
if (data[i].type === "text") {
|
||||
fragment.appendChild(document.createTextNode(data[i].data));
|
||||
} else {
|
||||
var span = document.createElement("span");
|
||||
var math = data[i].data; // Override any display mode defined in the settings with that
|
||||
// defined by the text itself
|
||||
|
||||
optionsCopy.displayMode = data[i].display;
|
||||
|
||||
try {
|
||||
if (optionsCopy.preProcess) {
|
||||
math = optionsCopy.preProcess(math);
|
||||
}
|
||||
|
||||
katex.render(math, span, optionsCopy);
|
||||
} catch (e) {
|
||||
if (!(e instanceof katex.ParseError)) {
|
||||
throw e;
|
||||
}
|
||||
|
||||
optionsCopy.errorCallback("KaTeX auto-render: Failed to parse `" + data[i].data + "` with ", e);
|
||||
fragment.appendChild(document.createTextNode(data[i].rawData));
|
||||
continue;
|
||||
}
|
||||
|
||||
fragment.appendChild(span);
|
||||
}
|
||||
}
|
||||
|
||||
return fragment;
|
||||
};
|
||||
|
||||
var renderElem = function renderElem(elem, optionsCopy) {
|
||||
for (var i = 0; i < elem.childNodes.length; i++) {
|
||||
var childNode = elem.childNodes[i];
|
||||
|
||||
if (childNode.nodeType === 3) {
|
||||
// Text node
|
||||
// Concatenate all sibling text nodes.
|
||||
// Webkit browsers split very large text nodes into smaller ones,
|
||||
// so the delimiters may be split across different nodes.
|
||||
var textContentConcat = childNode.textContent;
|
||||
var sibling = childNode.nextSibling;
|
||||
var nSiblings = 0;
|
||||
|
||||
while (sibling && sibling.nodeType === Node.TEXT_NODE) {
|
||||
textContentConcat += sibling.textContent;
|
||||
sibling = sibling.nextSibling;
|
||||
nSiblings++;
|
||||
}
|
||||
|
||||
var frag = renderMathInText(textContentConcat, optionsCopy);
|
||||
|
||||
if (frag) {
|
||||
// Remove extra text nodes
|
||||
for (var j = 0; j < nSiblings; j++) {
|
||||
childNode.nextSibling.remove();
|
||||
}
|
||||
|
||||
i += frag.childNodes.length - 1;
|
||||
elem.replaceChild(frag, childNode);
|
||||
} else {
|
||||
// If the concatenated text does not contain math
|
||||
// the siblings will not either
|
||||
i += nSiblings;
|
||||
}
|
||||
} else if (childNode.nodeType === 1) {
|
||||
(function () {
|
||||
// Element node
|
||||
var className = ' ' + childNode.className + ' ';
|
||||
var shouldRender = optionsCopy.ignoredTags.indexOf(childNode.nodeName.toLowerCase()) === -1 && optionsCopy.ignoredClasses.every(x => className.indexOf(' ' + x + ' ') === -1);
|
||||
|
||||
if (shouldRender) {
|
||||
renderElem(childNode, optionsCopy);
|
||||
}
|
||||
})();
|
||||
} // Otherwise, it's something else, and ignore it.
|
||||
|
||||
}
|
||||
};
|
||||
|
||||
var renderMathInElement = function renderMathInElement(elem, options) {
|
||||
if (!elem) {
|
||||
throw new Error("No element provided to render");
|
||||
}
|
||||
|
||||
var optionsCopy = {}; // Object.assign(optionsCopy, option)
|
||||
|
||||
for (var option in options) {
|
||||
if (options.hasOwnProperty(option)) {
|
||||
optionsCopy[option] = options[option];
|
||||
}
|
||||
} // default options
|
||||
|
||||
|
||||
optionsCopy.delimiters = optionsCopy.delimiters || [{
|
||||
left: "$$",
|
||||
right: "$$",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\(",
|
||||
right: "\\)",
|
||||
display: false
|
||||
}, // LaTeX uses $…$, but it ruins the display of normal `$` in text:
|
||||
// {left: "$", right: "$", display: false},
|
||||
// $ must come after $$
|
||||
// Render AMS environments even if outside $$…$$ delimiters.
|
||||
{
|
||||
left: "\\begin{equation}",
|
||||
right: "\\end{equation}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\begin{align}",
|
||||
right: "\\end{align}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\begin{alignat}",
|
||||
right: "\\end{alignat}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\begin{gather}",
|
||||
right: "\\end{gather}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\begin{CD}",
|
||||
right: "\\end{CD}",
|
||||
display: true
|
||||
}, {
|
||||
left: "\\[",
|
||||
right: "\\]",
|
||||
display: true
|
||||
}];
|
||||
optionsCopy.ignoredTags = optionsCopy.ignoredTags || ["script", "noscript", "style", "textarea", "pre", "code", "option"];
|
||||
optionsCopy.ignoredClasses = optionsCopy.ignoredClasses || [];
|
||||
optionsCopy.errorCallback = optionsCopy.errorCallback || console.error; // Enable sharing of global macros defined via `\gdef` between different
|
||||
// math elements within a single call to `renderMathInElement`.
|
||||
|
||||
optionsCopy.macros = optionsCopy.macros || {};
|
||||
renderElem(elem, optionsCopy);
|
||||
};
|
||||
|
||||
export { renderMathInElement as default };
|
||||
127
katex/contrib/copy-tex.js
Normal file
127
katex/contrib/copy-tex.js
Normal file
@ -0,0 +1,127 @@
|
||||
(function webpackUniversalModuleDefinition(root, factory) {
|
||||
if(typeof exports === 'object' && typeof module === 'object')
|
||||
module.exports = factory();
|
||||
else if(typeof define === 'function' && define.amd)
|
||||
define([], factory);
|
||||
else {
|
||||
var a = factory();
|
||||
for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];
|
||||
}
|
||||
})((typeof self !== 'undefined' ? self : this), function() {
|
||||
return /******/ (function() { // webpackBootstrap
|
||||
/******/ "use strict";
|
||||
var __webpack_exports__ = {};
|
||||
|
||||
;// CONCATENATED MODULE: ./contrib/copy-tex/katex2tex.js
|
||||
// Set these to how you want inline and display math to be delimited.
|
||||
const defaultCopyDelimiters = {
|
||||
inline: ['$', '$'],
|
||||
// alternative: ['\(', '\)']
|
||||
display: ['$$', '$$'] // alternative: ['\[', '\]']
|
||||
|
||||
}; // Replace .katex elements with their TeX source (<annotation> element).
|
||||
// Modifies fragment in-place. Useful for writing your own 'copy' handler,
|
||||
// as in copy-tex.js.
|
||||
|
||||
function katexReplaceWithTex(fragment, copyDelimiters) {
|
||||
if (copyDelimiters === void 0) {
|
||||
copyDelimiters = defaultCopyDelimiters;
|
||||
}
|
||||
|
||||
// Remove .katex-html blocks that are preceded by .katex-mathml blocks
|
||||
// (which will get replaced below).
|
||||
const katexHtml = fragment.querySelectorAll('.katex-mathml + .katex-html');
|
||||
|
||||
for (let i = 0; i < katexHtml.length; i++) {
|
||||
const element = katexHtml[i];
|
||||
|
||||
if (element.remove) {
|
||||
element.remove();
|
||||
} else if (element.parentNode) {
|
||||
element.parentNode.removeChild(element);
|
||||
}
|
||||
} // Replace .katex-mathml elements with their annotation (TeX source)
|
||||
// descendant, with inline delimiters.
|
||||
|
||||
|
||||
const katexMathml = fragment.querySelectorAll('.katex-mathml');
|
||||
|
||||
for (let i = 0; i < katexMathml.length; i++) {
|
||||
const element = katexMathml[i];
|
||||
const texSource = element.querySelector('annotation');
|
||||
|
||||
if (texSource) {
|
||||
if (element.replaceWith) {
|
||||
element.replaceWith(texSource);
|
||||
} else if (element.parentNode) {
|
||||
element.parentNode.replaceChild(texSource, element);
|
||||
}
|
||||
|
||||
texSource.innerHTML = copyDelimiters.inline[0] + texSource.innerHTML + copyDelimiters.inline[1];
|
||||
}
|
||||
} // Switch display math to display delimiters.
|
||||
|
||||
|
||||
const displays = fragment.querySelectorAll('.katex-display annotation');
|
||||
|
||||
for (let i = 0; i < displays.length; i++) {
|
||||
const element = displays[i];
|
||||
element.innerHTML = copyDelimiters.display[0] + element.innerHTML.substr(copyDelimiters.inline[0].length, element.innerHTML.length - copyDelimiters.inline[0].length - copyDelimiters.inline[1].length) + copyDelimiters.display[1];
|
||||
}
|
||||
|
||||
return fragment;
|
||||
}
|
||||
/* harmony default export */ var katex2tex = (katexReplaceWithTex);
|
||||
;// CONCATENATED MODULE: ./contrib/copy-tex/copy-tex.js
|
||||
// Return <div class="katex"> element containing node, or null if not found.
|
||||
|
||||
function closestKatex(node) {
|
||||
// If node is a Text Node, for example, go up to containing Element,
|
||||
// where we can apply the `closest` method.
|
||||
const element = node instanceof Element ? node : node.parentElement;
|
||||
return element && element.closest('.katex');
|
||||
} // Global copy handler to modify behavior on/within .katex elements.
|
||||
|
||||
|
||||
document.addEventListener('copy', function (event) {
|
||||
const selection = window.getSelection();
|
||||
|
||||
if (selection.isCollapsed || !event.clipboardData) {
|
||||
return; // default action OK if selection is empty or unchangeable
|
||||
}
|
||||
|
||||
const clipboardData = event.clipboardData;
|
||||
const range = selection.getRangeAt(0); // When start point is within a formula, expand to entire formula.
|
||||
|
||||
const startKatex = closestKatex(range.startContainer);
|
||||
|
||||
if (startKatex) {
|
||||
range.setStartBefore(startKatex);
|
||||
} // Similarly, when end point is within a formula, expand to entire formula.
|
||||
|
||||
|
||||
const endKatex = closestKatex(range.endContainer);
|
||||
|
||||
if (endKatex) {
|
||||
range.setEndAfter(endKatex);
|
||||
}
|
||||
|
||||
const fragment = range.cloneContents();
|
||||
|
||||
if (!fragment.querySelector('.katex-mathml')) {
|
||||
return; // default action OK if no .katex-mathml elements
|
||||
}
|
||||
|
||||
const htmlContents = Array.prototype.map.call(fragment.childNodes, el => el instanceof Text ? el.textContent : el.outerHTML).join(''); // Preserve usual HTML copy/paste behavior.
|
||||
|
||||
clipboardData.setData('text/html', htmlContents); // Rewrite plain-text version.
|
||||
|
||||
clipboardData.setData('text/plain', katex2tex(fragment).textContent); // Prevent normal copy handling.
|
||||
|
||||
event.preventDefault();
|
||||
});
|
||||
__webpack_exports__ = __webpack_exports__["default"];
|
||||
/******/ return __webpack_exports__;
|
||||
/******/ })()
|
||||
;
|
||||
});
|
||||
1
katex/contrib/copy-tex.min.js
vendored
Normal file
1
katex/contrib/copy-tex.min.js
vendored
Normal file
@ -0,0 +1 @@
|
||||
!function(e,t){if("object"==typeof exports&&"object"==typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var n=t();for(var o in n)("object"==typeof exports?exports:e)[o]=n[o]}}("undefined"!=typeof self?self:this,(function(){return function(){"use strict";var e={};const t={inline:["$","$"],display:["$$","$$"]};var n=function(e,n){void 0===n&&(n=t);const o=e.querySelectorAll(".katex-mathml + .katex-html");for(let e=0;e<o.length;e++){const t=o[e];t.remove?t.remove():t.parentNode&&t.parentNode.removeChild(t)}const r=e.querySelectorAll(".katex-mathml");for(let e=0;e<r.length;e++){const t=r[e],o=t.querySelector("annotation");o&&(t.replaceWith?t.replaceWith(o):t.parentNode&&t.parentNode.replaceChild(o,t),o.innerHTML=n.inline[0]+o.innerHTML+n.inline[1])}const l=e.querySelectorAll(".katex-display annotation");for(let e=0;e<l.length;e++){const t=l[e];t.innerHTML=n.display[0]+t.innerHTML.substr(n.inline[0].length,t.innerHTML.length-n.inline[0].length-n.inline[1].length)+n.display[1]}return e};function o(e){const t=e instanceof Element?e:e.parentElement;return t&&t.closest(".katex")}return document.addEventListener("copy",(function(e){const t=window.getSelection();if(t.isCollapsed||!e.clipboardData)return;const r=e.clipboardData,l=t.getRangeAt(0),i=o(l.startContainer);i&&l.setStartBefore(i);const a=o(l.endContainer);a&&l.setEndAfter(a);const s=l.cloneContents();if(!s.querySelector(".katex-mathml"))return;const c=Array.prototype.map.call(s.childNodes,(e=>e instanceof Text?e.textContent:e.outerHTML)).join("");r.setData("text/html",c),r.setData("text/plain",n(s).textContent),e.preventDefault()})),e=e.default}()}));
|
||||
105
katex/contrib/copy-tex.mjs
Normal file
105
katex/contrib/copy-tex.mjs
Normal file
@ -0,0 +1,105 @@
|
||||
// Set these to how you want inline and display math to be delimited.
|
||||
var defaultCopyDelimiters = {
|
||||
inline: ['$', '$'],
|
||||
// alternative: ['\(', '\)']
|
||||
display: ['$$', '$$'] // alternative: ['\[', '\]']
|
||||
|
||||
}; // Replace .katex elements with their TeX source (<annotation> element).
|
||||
// Modifies fragment in-place. Useful for writing your own 'copy' handler,
|
||||
// as in copy-tex.js.
|
||||
|
||||
function katexReplaceWithTex(fragment, copyDelimiters) {
|
||||
if (copyDelimiters === void 0) {
|
||||
copyDelimiters = defaultCopyDelimiters;
|
||||
}
|
||||
|
||||
// Remove .katex-html blocks that are preceded by .katex-mathml blocks
|
||||
// (which will get replaced below).
|
||||
var katexHtml = fragment.querySelectorAll('.katex-mathml + .katex-html');
|
||||
|
||||
for (var i = 0; i < katexHtml.length; i++) {
|
||||
var element = katexHtml[i];
|
||||
|
||||
if (element.remove) {
|
||||
element.remove();
|
||||
} else if (element.parentNode) {
|
||||
element.parentNode.removeChild(element);
|
||||
}
|
||||
} // Replace .katex-mathml elements with their annotation (TeX source)
|
||||
// descendant, with inline delimiters.
|
||||
|
||||
|
||||
var katexMathml = fragment.querySelectorAll('.katex-mathml');
|
||||
|
||||
for (var _i = 0; _i < katexMathml.length; _i++) {
|
||||
var _element = katexMathml[_i];
|
||||
|
||||
var texSource = _element.querySelector('annotation');
|
||||
|
||||
if (texSource) {
|
||||
if (_element.replaceWith) {
|
||||
_element.replaceWith(texSource);
|
||||
} else if (_element.parentNode) {
|
||||
_element.parentNode.replaceChild(texSource, _element);
|
||||
}
|
||||
|
||||
texSource.innerHTML = copyDelimiters.inline[0] + texSource.innerHTML + copyDelimiters.inline[1];
|
||||
}
|
||||
} // Switch display math to display delimiters.
|
||||
|
||||
|
||||
var displays = fragment.querySelectorAll('.katex-display annotation');
|
||||
|
||||
for (var _i2 = 0; _i2 < displays.length; _i2++) {
|
||||
var _element2 = displays[_i2];
|
||||
_element2.innerHTML = copyDelimiters.display[0] + _element2.innerHTML.substr(copyDelimiters.inline[0].length, _element2.innerHTML.length - copyDelimiters.inline[0].length - copyDelimiters.inline[1].length) + copyDelimiters.display[1];
|
||||
}
|
||||
|
||||
return fragment;
|
||||
}
|
||||
|
||||
function closestKatex(node) {
|
||||
// If node is a Text Node, for example, go up to containing Element,
|
||||
// where we can apply the `closest` method.
|
||||
var element = node instanceof Element ? node : node.parentElement;
|
||||
return element && element.closest('.katex');
|
||||
} // Global copy handler to modify behavior on/within .katex elements.
|
||||
|
||||
|
||||
document.addEventListener('copy', function (event) {
|
||||
var selection = window.getSelection();
|
||||
|
||||
if (selection.isCollapsed || !event.clipboardData) {
|
||||
return; // default action OK if selection is empty or unchangeable
|
||||
}
|
||||
|
||||
var clipboardData = event.clipboardData;
|
||||
var range = selection.getRangeAt(0); // When start point is within a formula, expand to entire formula.
|
||||
|
||||
var startKatex = closestKatex(range.startContainer);
|
||||
|
||||
if (startKatex) {
|
||||
range.setStartBefore(startKatex);
|
||||
} // Similarly, when end point is within a formula, expand to entire formula.
|
||||
|
||||
|
||||
var endKatex = closestKatex(range.endContainer);
|
||||
|
||||
if (endKatex) {
|
||||
range.setEndAfter(endKatex);
|
||||
}
|
||||
|
||||
var fragment = range.cloneContents();
|
||||
|
||||
if (!fragment.querySelector('.katex-mathml')) {
|
||||
return; // default action OK if no .katex-mathml elements
|
||||
}
|
||||
|
||||
var htmlContents = Array.prototype.map.call(fragment.childNodes, el => el instanceof Text ? el.textContent : el.outerHTML).join(''); // Preserve usual HTML copy/paste behavior.
|
||||
|
||||
clipboardData.setData('text/html', htmlContents); // Rewrite plain-text version.
|
||||
|
||||
clipboardData.setData('text/plain', katexReplaceWithTex(fragment).textContent); // Prevent normal copy handling.
|
||||
|
||||
event.preventDefault();
|
||||
});
|
||||
109
katex/contrib/mathtex-script-type.js
Normal file
109
katex/contrib/mathtex-script-type.js
Normal file
@ -0,0 +1,109 @@
|
||||
(function webpackUniversalModuleDefinition(root, factory) {
|
||||
if(typeof exports === 'object' && typeof module === 'object')
|
||||
module.exports = factory(require("katex"));
|
||||
else if(typeof define === 'function' && define.amd)
|
||||
define(["katex"], factory);
|
||||
else {
|
||||
var a = typeof exports === 'object' ? factory(require("katex")) : factory(root["katex"]);
|
||||
for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];
|
||||
}
|
||||
})((typeof self !== 'undefined' ? self : this), function(__WEBPACK_EXTERNAL_MODULE__757__) {
|
||||
return /******/ (function() { // webpackBootstrap
|
||||
/******/ "use strict";
|
||||
/******/ var __webpack_modules__ = ({
|
||||
|
||||
/***/ 757:
|
||||
/***/ (function(module) {
|
||||
|
||||
module.exports = __WEBPACK_EXTERNAL_MODULE__757__;
|
||||
|
||||
/***/ })
|
||||
|
||||
/******/ });
|
||||
/************************************************************************/
|
||||
/******/ // The module cache
|
||||
/******/ var __webpack_module_cache__ = {};
|
||||
/******/
|
||||
/******/ // The require function
|
||||
/******/ function __webpack_require__(moduleId) {
|
||||
/******/ // Check if module is in cache
|
||||
/******/ var cachedModule = __webpack_module_cache__[moduleId];
|
||||
/******/ if (cachedModule !== undefined) {
|
||||
/******/ return cachedModule.exports;
|
||||
/******/ }
|
||||
/******/ // Create a new module (and put it into the cache)
|
||||
/******/ var module = __webpack_module_cache__[moduleId] = {
|
||||
/******/ // no module.id needed
|
||||
/******/ // no module.loaded needed
|
||||
/******/ exports: {}
|
||||
/******/ };
|
||||
/******/
|
||||
/******/ // Execute the module function
|
||||
/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
|
||||
/******/
|
||||
/******/ // Return the exports of the module
|
||||
/******/ return module.exports;
|
||||
/******/ }
|
||||
/******/
|
||||
/************************************************************************/
|
||||
/******/ /* webpack/runtime/compat get default export */
|
||||
/******/ !function() {
|
||||
/******/ // getDefaultExport function for compatibility with non-harmony modules
|
||||
/******/ __webpack_require__.n = function(module) {
|
||||
/******/ var getter = module && module.__esModule ?
|
||||
/******/ function() { return module['default']; } :
|
||||
/******/ function() { return module; };
|
||||
/******/ __webpack_require__.d(getter, { a: getter });
|
||||
/******/ return getter;
|
||||
/******/ };
|
||||
/******/ }();
|
||||
/******/
|
||||
/******/ /* webpack/runtime/define property getters */
|
||||
/******/ !function() {
|
||||
/******/ // define getter functions for harmony exports
|
||||
/******/ __webpack_require__.d = function(exports, definition) {
|
||||
/******/ for(var key in definition) {
|
||||
/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
|
||||
/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
|
||||
/******/ }
|
||||
/******/ }
|
||||
/******/ };
|
||||
/******/ }();
|
||||
/******/
|
||||
/******/ /* webpack/runtime/hasOwnProperty shorthand */
|
||||
/******/ !function() {
|
||||
/******/ __webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }
|
||||
/******/ }();
|
||||
/******/
|
||||
/************************************************************************/
|
||||
var __webpack_exports__ = {};
|
||||
/* harmony import */ var katex__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(757);
|
||||
/* harmony import */ var katex__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(katex__WEBPACK_IMPORTED_MODULE_0__);
|
||||
|
||||
let scripts = document.body.getElementsByTagName("script");
|
||||
scripts = Array.prototype.slice.call(scripts);
|
||||
scripts.forEach(function (script) {
|
||||
if (!script.type || !script.type.match(/math\/tex/i)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
const display = script.type.match(/mode\s*=\s*display(;|\s|\n|$)/) != null;
|
||||
const katexElement = document.createElement(display ? "div" : "span");
|
||||
katexElement.setAttribute("class", display ? "equation" : "inline-equation");
|
||||
|
||||
try {
|
||||
katex__WEBPACK_IMPORTED_MODULE_0___default().render(script.text, katexElement, {
|
||||
displayMode: display
|
||||
});
|
||||
} catch (err) {
|
||||
//console.error(err); linter doesn't like this
|
||||
katexElement.textContent = script.text;
|
||||
}
|
||||
|
||||
script.parentNode.replaceChild(katexElement, script);
|
||||
});
|
||||
__webpack_exports__ = __webpack_exports__["default"];
|
||||
/******/ return __webpack_exports__;
|
||||
/******/ })()
|
||||
;
|
||||
});
|
||||
1
katex/contrib/mathtex-script-type.min.js
vendored
Normal file
1
katex/contrib/mathtex-script-type.min.js
vendored
Normal file
@ -0,0 +1 @@
|
||||
!function(e,t){if("object"==typeof exports&&"object"==typeof module)module.exports=t(require("katex"));else if("function"==typeof define&&define.amd)define(["katex"],t);else{var n="object"==typeof exports?t(require("katex")):t(e.katex);for(var r in n)("object"==typeof exports?exports:e)[r]=n[r]}}("undefined"!=typeof self?self:this,(function(e){return function(){"use strict";var t={757:function(t){t.exports=e}},n={};function r(e){var o=n[e];if(void 0!==o)return o.exports;var i=n[e]={exports:{}};return t[e](i,i.exports,r),i.exports}r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,{a:t}),t},r.d=function(e,t){for(var n in t)r.o(t,n)&&!r.o(e,n)&&Object.defineProperty(e,n,{enumerable:!0,get:t[n]})},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)};var o={},i=r(757),a=r.n(i);let u=document.body.getElementsByTagName("script");return u=Array.prototype.slice.call(u),u.forEach((function(e){if(!e.type||!e.type.match(/math\/tex/i))return-1;const t=null!=e.type.match(/mode\s*=\s*display(;|\s|\n|$)/),n=document.createElement(t?"div":"span");n.setAttribute("class",t?"equation":"inline-equation");try{a().render(e.text,n,{displayMode:t})}catch(t){n.textContent=e.text}e.parentNode.replaceChild(n,e)})),o=o.default}()}));
|
||||
24
katex/contrib/mathtex-script-type.mjs
Normal file
24
katex/contrib/mathtex-script-type.mjs
Normal file
@ -0,0 +1,24 @@
|
||||
import katex from '../katex.mjs';
|
||||
|
||||
var scripts = document.body.getElementsByTagName("script");
|
||||
scripts = Array.prototype.slice.call(scripts);
|
||||
scripts.forEach(function (script) {
|
||||
if (!script.type || !script.type.match(/math\/tex/i)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
var display = script.type.match(/mode\s*=\s*display(;|\s|\n|$)/) != null;
|
||||
var katexElement = document.createElement(display ? "div" : "span");
|
||||
katexElement.setAttribute("class", display ? "equation" : "inline-equation");
|
||||
|
||||
try {
|
||||
katex.render(script.text, katexElement, {
|
||||
displayMode: display
|
||||
});
|
||||
} catch (err) {
|
||||
//console.error(err); linter doesn't like this
|
||||
katexElement.textContent = script.text;
|
||||
}
|
||||
|
||||
script.parentNode.replaceChild(katexElement, script);
|
||||
});
|
||||
3213
katex/contrib/mhchem.js
Normal file
3213
katex/contrib/mhchem.js
Normal file
File diff suppressed because it is too large
Load Diff
1
katex/contrib/mhchem.min.js
vendored
Normal file
1
katex/contrib/mhchem.min.js
vendored
Normal file
File diff suppressed because one or more lines are too long
3109
katex/contrib/mhchem.mjs
Normal file
3109
katex/contrib/mhchem.mjs
Normal file
File diff suppressed because it is too large
Load Diff
887
katex/contrib/render-a11y-string.js
Normal file
887
katex/contrib/render-a11y-string.js
Normal file
@ -0,0 +1,887 @@
|
||||
(function webpackUniversalModuleDefinition(root, factory) {
|
||||
if(typeof exports === 'object' && typeof module === 'object')
|
||||
module.exports = factory(require("katex"));
|
||||
else if(typeof define === 'function' && define.amd)
|
||||
define(["katex"], factory);
|
||||
else {
|
||||
var a = typeof exports === 'object' ? factory(require("katex")) : factory(root["katex"]);
|
||||
for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];
|
||||
}
|
||||
})((typeof self !== 'undefined' ? self : this), function(__WEBPACK_EXTERNAL_MODULE__757__) {
|
||||
return /******/ (function() { // webpackBootstrap
|
||||
/******/ "use strict";
|
||||
/******/ var __webpack_modules__ = ({
|
||||
|
||||
/***/ 757:
|
||||
/***/ (function(module) {
|
||||
|
||||
module.exports = __WEBPACK_EXTERNAL_MODULE__757__;
|
||||
|
||||
/***/ })
|
||||
|
||||
/******/ });
|
||||
/************************************************************************/
|
||||
/******/ // The module cache
|
||||
/******/ var __webpack_module_cache__ = {};
|
||||
/******/
|
||||
/******/ // The require function
|
||||
/******/ function __webpack_require__(moduleId) {
|
||||
/******/ // Check if module is in cache
|
||||
/******/ var cachedModule = __webpack_module_cache__[moduleId];
|
||||
/******/ if (cachedModule !== undefined) {
|
||||
/******/ return cachedModule.exports;
|
||||
/******/ }
|
||||
/******/ // Create a new module (and put it into the cache)
|
||||
/******/ var module = __webpack_module_cache__[moduleId] = {
|
||||
/******/ // no module.id needed
|
||||
/******/ // no module.loaded needed
|
||||
/******/ exports: {}
|
||||
/******/ };
|
||||
/******/
|
||||
/******/ // Execute the module function
|
||||
/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
|
||||
/******/
|
||||
/******/ // Return the exports of the module
|
||||
/******/ return module.exports;
|
||||
/******/ }
|
||||
/******/
|
||||
/************************************************************************/
|
||||
/******/ /* webpack/runtime/compat get default export */
|
||||
/******/ !function() {
|
||||
/******/ // getDefaultExport function for compatibility with non-harmony modules
|
||||
/******/ __webpack_require__.n = function(module) {
|
||||
/******/ var getter = module && module.__esModule ?
|
||||
/******/ function() { return module['default']; } :
|
||||
/******/ function() { return module; };
|
||||
/******/ __webpack_require__.d(getter, { a: getter });
|
||||
/******/ return getter;
|
||||
/******/ };
|
||||
/******/ }();
|
||||
/******/
|
||||
/******/ /* webpack/runtime/define property getters */
|
||||
/******/ !function() {
|
||||
/******/ // define getter functions for harmony exports
|
||||
/******/ __webpack_require__.d = function(exports, definition) {
|
||||
/******/ for(var key in definition) {
|
||||
/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
|
||||
/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
|
||||
/******/ }
|
||||
/******/ }
|
||||
/******/ };
|
||||
/******/ }();
|
||||
/******/
|
||||
/******/ /* webpack/runtime/hasOwnProperty shorthand */
|
||||
/******/ !function() {
|
||||
/******/ __webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }
|
||||
/******/ }();
|
||||
/******/
|
||||
/************************************************************************/
|
||||
var __webpack_exports__ = {};
|
||||
/* harmony import */ var katex__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(757);
|
||||
/* harmony import */ var katex__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(katex__WEBPACK_IMPORTED_MODULE_0__);
|
||||
/**
|
||||
* renderA11yString returns a readable string.
|
||||
*
|
||||
* In some cases the string will have the proper semantic math
|
||||
* meaning,:
|
||||
* renderA11yString("\\frac{1}{2}"")
|
||||
* -> "start fraction, 1, divided by, 2, end fraction"
|
||||
*
|
||||
* However, other cases do not:
|
||||
* renderA11yString("f(x) = x^2")
|
||||
* -> "f, left parenthesis, x, right parenthesis, equals, x, squared"
|
||||
*
|
||||
* The commas in the string aim to increase ease of understanding
|
||||
* when read by a screenreader.
|
||||
*/
|
||||
// NOTE: since we're importing types here these files won't actually be
|
||||
// included in the build.
|
||||
// $FlowIgnore: we import the types directly anyways
|
||||
|
||||
const stringMap = {
|
||||
"(": "left parenthesis",
|
||||
")": "right parenthesis",
|
||||
"[": "open bracket",
|
||||
"]": "close bracket",
|
||||
"\\{": "left brace",
|
||||
"\\}": "right brace",
|
||||
"\\lvert": "open vertical bar",
|
||||
"\\rvert": "close vertical bar",
|
||||
"|": "vertical bar",
|
||||
"\\uparrow": "up arrow",
|
||||
"\\Uparrow": "up arrow",
|
||||
"\\downarrow": "down arrow",
|
||||
"\\Downarrow": "down arrow",
|
||||
"\\updownarrow": "up down arrow",
|
||||
"\\leftarrow": "left arrow",
|
||||
"\\Leftarrow": "left arrow",
|
||||
"\\rightarrow": "right arrow",
|
||||
"\\Rightarrow": "right arrow",
|
||||
"\\langle": "open angle",
|
||||
"\\rangle": "close angle",
|
||||
"\\lfloor": "open floor",
|
||||
"\\rfloor": "close floor",
|
||||
"\\int": "integral",
|
||||
"\\intop": "integral",
|
||||
"\\lim": "limit",
|
||||
"\\ln": "natural log",
|
||||
"\\log": "log",
|
||||
"\\sin": "sine",
|
||||
"\\cos": "cosine",
|
||||
"\\tan": "tangent",
|
||||
"\\cot": "cotangent",
|
||||
"\\sum": "sum",
|
||||
"/": "slash",
|
||||
",": "comma",
|
||||
".": "point",
|
||||
"-": "negative",
|
||||
"+": "plus",
|
||||
"~": "tilde",
|
||||
":": "colon",
|
||||
"?": "question mark",
|
||||
"'": "apostrophe",
|
||||
"\\%": "percent",
|
||||
" ": "space",
|
||||
"\\ ": "space",
|
||||
"\\$": "dollar sign",
|
||||
"\\angle": "angle",
|
||||
"\\degree": "degree",
|
||||
"\\circ": "circle",
|
||||
"\\vec": "vector",
|
||||
"\\triangle": "triangle",
|
||||
"\\pi": "pi",
|
||||
"\\prime": "prime",
|
||||
"\\infty": "infinity",
|
||||
"\\alpha": "alpha",
|
||||
"\\beta": "beta",
|
||||
"\\gamma": "gamma",
|
||||
"\\omega": "omega",
|
||||
"\\theta": "theta",
|
||||
"\\sigma": "sigma",
|
||||
"\\lambda": "lambda",
|
||||
"\\tau": "tau",
|
||||
"\\Delta": "delta",
|
||||
"\\delta": "delta",
|
||||
"\\mu": "mu",
|
||||
"\\rho": "rho",
|
||||
"\\nabla": "del",
|
||||
"\\ell": "ell",
|
||||
"\\ldots": "dots",
|
||||
// TODO: add entries for all accents
|
||||
"\\hat": "hat",
|
||||
"\\acute": "acute"
|
||||
};
|
||||
const powerMap = {
|
||||
"prime": "prime",
|
||||
"degree": "degrees",
|
||||
"circle": "degrees",
|
||||
"2": "squared",
|
||||
"3": "cubed"
|
||||
};
|
||||
const openMap = {
|
||||
"|": "open vertical bar",
|
||||
".": ""
|
||||
};
|
||||
const closeMap = {
|
||||
"|": "close vertical bar",
|
||||
".": ""
|
||||
};
|
||||
const binMap = {
|
||||
"+": "plus",
|
||||
"-": "minus",
|
||||
"\\pm": "plus minus",
|
||||
"\\cdot": "dot",
|
||||
"*": "times",
|
||||
"/": "divided by",
|
||||
"\\times": "times",
|
||||
"\\div": "divided by",
|
||||
"\\circ": "circle",
|
||||
"\\bullet": "bullet"
|
||||
};
|
||||
const relMap = {
|
||||
"=": "equals",
|
||||
"\\approx": "approximately equals",
|
||||
"≠": "does not equal",
|
||||
"\\geq": "is greater than or equal to",
|
||||
"\\ge": "is greater than or equal to",
|
||||
"\\leq": "is less than or equal to",
|
||||
"\\le": "is less than or equal to",
|
||||
">": "is greater than",
|
||||
"<": "is less than",
|
||||
"\\leftarrow": "left arrow",
|
||||
"\\Leftarrow": "left arrow",
|
||||
"\\rightarrow": "right arrow",
|
||||
"\\Rightarrow": "right arrow",
|
||||
":": "colon"
|
||||
};
|
||||
const accentUnderMap = {
|
||||
"\\underleftarrow": "left arrow",
|
||||
"\\underrightarrow": "right arrow",
|
||||
"\\underleftrightarrow": "left-right arrow",
|
||||
"\\undergroup": "group",
|
||||
"\\underlinesegment": "line segment",
|
||||
"\\utilde": "tilde"
|
||||
};
|
||||
|
||||
const buildString = (str, type, a11yStrings) => {
|
||||
if (!str) {
|
||||
return;
|
||||
}
|
||||
|
||||
let ret;
|
||||
|
||||
if (type === "open") {
|
||||
ret = str in openMap ? openMap[str] : stringMap[str] || str;
|
||||
} else if (type === "close") {
|
||||
ret = str in closeMap ? closeMap[str] : stringMap[str] || str;
|
||||
} else if (type === "bin") {
|
||||
ret = binMap[str] || str;
|
||||
} else if (type === "rel") {
|
||||
ret = relMap[str] || str;
|
||||
} else {
|
||||
ret = stringMap[str] || str;
|
||||
} // If the text to add is a number and there is already a string
|
||||
// in the list and the last string is a number then we should
|
||||
// combine them into a single number
|
||||
|
||||
|
||||
if (/^\d+$/.test(ret) && a11yStrings.length > 0 && // TODO(kevinb): check that the last item in a11yStrings is a string
|
||||
// I think we might be able to drop the nested arrays, which would make
|
||||
// this easier to type
|
||||
// $FlowFixMe
|
||||
/^\d+$/.test(a11yStrings[a11yStrings.length - 1])) {
|
||||
a11yStrings[a11yStrings.length - 1] += ret;
|
||||
} else if (ret) {
|
||||
a11yStrings.push(ret);
|
||||
}
|
||||
};
|
||||
|
||||
const buildRegion = (a11yStrings, callback) => {
|
||||
const regionStrings = [];
|
||||
a11yStrings.push(regionStrings);
|
||||
callback(regionStrings);
|
||||
};
|
||||
|
||||
const handleObject = (tree, a11yStrings, atomType) => {
|
||||
// Everything else is assumed to be an object...
|
||||
switch (tree.type) {
|
||||
case "accent":
|
||||
{
|
||||
buildRegion(a11yStrings, a11yStrings => {
|
||||
buildA11yStrings(tree.base, a11yStrings, atomType);
|
||||
a11yStrings.push("with");
|
||||
buildString(tree.label, "normal", a11yStrings);
|
||||
a11yStrings.push("on top");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "accentUnder":
|
||||
{
|
||||
buildRegion(a11yStrings, a11yStrings => {
|
||||
buildA11yStrings(tree.base, a11yStrings, atomType);
|
||||
a11yStrings.push("with");
|
||||
buildString(accentUnderMap[tree.label], "normal", a11yStrings);
|
||||
a11yStrings.push("underneath");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "accent-token":
|
||||
{
|
||||
// Used internally by accent symbols.
|
||||
break;
|
||||
}
|
||||
|
||||
case "atom":
|
||||
{
|
||||
const {
|
||||
text
|
||||
} = tree;
|
||||
|
||||
switch (tree.family) {
|
||||
case "bin":
|
||||
{
|
||||
buildString(text, "bin", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "close":
|
||||
{
|
||||
buildString(text, "close", a11yStrings);
|
||||
break;
|
||||
}
|
||||
// TODO(kevinb): figure out what should be done for inner
|
||||
|
||||
case "inner":
|
||||
{
|
||||
buildString(tree.text, "inner", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "open":
|
||||
{
|
||||
buildString(text, "open", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "punct":
|
||||
{
|
||||
buildString(text, "punct", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "rel":
|
||||
{
|
||||
buildString(text, "rel", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
{
|
||||
tree.family;
|
||||
throw new Error("\"" + tree.family + "\" is not a valid atom type");
|
||||
}
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case "color":
|
||||
{
|
||||
const color = tree.color.replace(/katex-/, "");
|
||||
buildRegion(a11yStrings, regionStrings => {
|
||||
regionStrings.push("start color " + color);
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end color " + color);
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "color-token":
|
||||
{
|
||||
// Used by \color, \colorbox, and \fcolorbox but not directly rendered.
|
||||
// It's a leaf node and has no children so just break.
|
||||
break;
|
||||
}
|
||||
|
||||
case "delimsizing":
|
||||
{
|
||||
if (tree.delim && tree.delim !== ".") {
|
||||
buildString(tree.delim, "normal", a11yStrings);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case "genfrac":
|
||||
{
|
||||
buildRegion(a11yStrings, regionStrings => {
|
||||
// genfrac can have unbalanced delimiters
|
||||
const {
|
||||
leftDelim,
|
||||
rightDelim
|
||||
} = tree; // NOTE: Not sure if this is a safe assumption
|
||||
// hasBarLine true -> fraction, false -> binomial
|
||||
|
||||
if (tree.hasBarLine) {
|
||||
regionStrings.push("start fraction");
|
||||
leftDelim && buildString(leftDelim, "open", regionStrings);
|
||||
buildA11yStrings(tree.numer, regionStrings, atomType);
|
||||
regionStrings.push("divided by");
|
||||
buildA11yStrings(tree.denom, regionStrings, atomType);
|
||||
rightDelim && buildString(rightDelim, "close", regionStrings);
|
||||
regionStrings.push("end fraction");
|
||||
} else {
|
||||
regionStrings.push("start binomial");
|
||||
leftDelim && buildString(leftDelim, "open", regionStrings);
|
||||
buildA11yStrings(tree.numer, regionStrings, atomType);
|
||||
regionStrings.push("over");
|
||||
buildA11yStrings(tree.denom, regionStrings, atomType);
|
||||
rightDelim && buildString(rightDelim, "close", regionStrings);
|
||||
regionStrings.push("end binomial");
|
||||
}
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "hbox":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "kern":
|
||||
{
|
||||
// No op: we don't attempt to present kerning information
|
||||
// to the screen reader.
|
||||
break;
|
||||
}
|
||||
|
||||
case "leftright":
|
||||
{
|
||||
buildRegion(a11yStrings, regionStrings => {
|
||||
buildString(tree.left, "open", regionStrings);
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
buildString(tree.right, "close", regionStrings);
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "leftright-right":
|
||||
{
|
||||
// TODO: double check that this is a no-op
|
||||
break;
|
||||
}
|
||||
|
||||
case "lap":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "mathord":
|
||||
{
|
||||
buildString(tree.text, "normal", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "op":
|
||||
{
|
||||
const {
|
||||
body,
|
||||
name
|
||||
} = tree;
|
||||
|
||||
if (body) {
|
||||
buildA11yStrings(body, a11yStrings, atomType);
|
||||
} else if (name) {
|
||||
buildString(name, "normal", a11yStrings);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case "op-token":
|
||||
{
|
||||
// Used internally by operator symbols.
|
||||
buildString(tree.text, atomType, a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "ordgroup":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "overline":
|
||||
{
|
||||
buildRegion(a11yStrings, function (a11yStrings) {
|
||||
a11yStrings.push("start overline");
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
a11yStrings.push("end overline");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "pmb":
|
||||
{
|
||||
a11yStrings.push("bold");
|
||||
break;
|
||||
}
|
||||
|
||||
case "phantom":
|
||||
{
|
||||
a11yStrings.push("empty space");
|
||||
break;
|
||||
}
|
||||
|
||||
case "raisebox":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "rule":
|
||||
{
|
||||
a11yStrings.push("rectangle");
|
||||
break;
|
||||
}
|
||||
|
||||
case "sizing":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "spacing":
|
||||
{
|
||||
a11yStrings.push("space");
|
||||
break;
|
||||
}
|
||||
|
||||
case "styling":
|
||||
{
|
||||
// We ignore the styling and just pass through the contents
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "sqrt":
|
||||
{
|
||||
buildRegion(a11yStrings, regionStrings => {
|
||||
const {
|
||||
body,
|
||||
index
|
||||
} = tree;
|
||||
|
||||
if (index) {
|
||||
const indexString = flatten(buildA11yStrings(index, [], atomType)).join(",");
|
||||
|
||||
if (indexString === "3") {
|
||||
regionStrings.push("cube root of");
|
||||
buildA11yStrings(body, regionStrings, atomType);
|
||||
regionStrings.push("end cube root");
|
||||
return;
|
||||
}
|
||||
|
||||
regionStrings.push("root");
|
||||
regionStrings.push("start index");
|
||||
buildA11yStrings(index, regionStrings, atomType);
|
||||
regionStrings.push("end index");
|
||||
return;
|
||||
}
|
||||
|
||||
regionStrings.push("square root of");
|
||||
buildA11yStrings(body, regionStrings, atomType);
|
||||
regionStrings.push("end square root");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "supsub":
|
||||
{
|
||||
const {
|
||||
base,
|
||||
sub,
|
||||
sup
|
||||
} = tree;
|
||||
let isLog = false;
|
||||
|
||||
if (base) {
|
||||
buildA11yStrings(base, a11yStrings, atomType);
|
||||
isLog = base.type === "op" && base.name === "\\log";
|
||||
}
|
||||
|
||||
if (sub) {
|
||||
const regionName = isLog ? "base" : "subscript";
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start " + regionName);
|
||||
buildA11yStrings(sub, regionStrings, atomType);
|
||||
regionStrings.push("end " + regionName);
|
||||
});
|
||||
}
|
||||
|
||||
if (sup) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
const supString = flatten(buildA11yStrings(sup, [], atomType)).join(",");
|
||||
|
||||
if (supString in powerMap) {
|
||||
regionStrings.push(powerMap[supString]);
|
||||
return;
|
||||
}
|
||||
|
||||
regionStrings.push("start superscript");
|
||||
buildA11yStrings(sup, regionStrings, atomType);
|
||||
regionStrings.push("end superscript");
|
||||
});
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case "text":
|
||||
{
|
||||
// TODO: handle other fonts
|
||||
if (tree.font === "\\textbf") {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start bold text");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end bold text");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start text");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end text");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "textord":
|
||||
{
|
||||
buildString(tree.text, atomType, a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "smash":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "enclose":
|
||||
{
|
||||
// TODO: create a map for these.
|
||||
// TODO: differentiate between a body with a single atom, e.g.
|
||||
// "cancel a" instead of "start cancel, a, end cancel"
|
||||
if (/cancel/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start cancel");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end cancel");
|
||||
});
|
||||
break;
|
||||
} else if (/box/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start box");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end box");
|
||||
});
|
||||
break;
|
||||
} else if (/sout/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start strikeout");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end strikeout");
|
||||
});
|
||||
break;
|
||||
} else if (/phase/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start phase angle");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end phase angle");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
throw new Error("KaTeX-a11y: enclose node with " + tree.label + " not supported yet");
|
||||
}
|
||||
|
||||
case "vcenter":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "vphantom":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: vphantom not implemented yet");
|
||||
}
|
||||
|
||||
case "hphantom":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: hphantom not implemented yet");
|
||||
}
|
||||
|
||||
case "operatorname":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "array":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: array not implemented yet");
|
||||
}
|
||||
|
||||
case "raw":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: raw not implemented yet");
|
||||
}
|
||||
|
||||
case "size":
|
||||
{
|
||||
// Although there are nodes of type "size" in the parse tree, they have
|
||||
// no semantic meaning and should be ignored.
|
||||
break;
|
||||
}
|
||||
|
||||
case "url":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: url not implemented yet");
|
||||
}
|
||||
|
||||
case "tag":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: tag not implemented yet");
|
||||
}
|
||||
|
||||
case "verb":
|
||||
{
|
||||
buildString("start verbatim", "normal", a11yStrings);
|
||||
buildString(tree.body, "normal", a11yStrings);
|
||||
buildString("end verbatim", "normal", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "environment":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: environment not implemented yet");
|
||||
}
|
||||
|
||||
case "horizBrace":
|
||||
{
|
||||
buildString("start " + tree.label.slice(1), "normal", a11yStrings);
|
||||
buildA11yStrings(tree.base, a11yStrings, atomType);
|
||||
buildString("end " + tree.label.slice(1), "normal", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "infix":
|
||||
{
|
||||
// All infix nodes are replace with other nodes.
|
||||
break;
|
||||
}
|
||||
|
||||
case "includegraphics":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: includegraphics not implemented yet");
|
||||
}
|
||||
|
||||
case "font":
|
||||
{
|
||||
// TODO: callout the start/end of specific fonts
|
||||
// TODO: map \BBb{N} to "the naturals" or something like that
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "href":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: href not implemented yet");
|
||||
}
|
||||
|
||||
case "cr":
|
||||
{
|
||||
// This is used by environments.
|
||||
throw new Error("KaTeX-a11y: cr not implemented yet");
|
||||
}
|
||||
|
||||
case "underline":
|
||||
{
|
||||
buildRegion(a11yStrings, function (a11yStrings) {
|
||||
a11yStrings.push("start underline");
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
a11yStrings.push("end underline");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "xArrow":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: xArrow not implemented yet");
|
||||
}
|
||||
|
||||
case "cdlabel":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: cdlabel not implemented yet");
|
||||
}
|
||||
|
||||
case "cdlabelparent":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: cdlabelparent not implemented yet");
|
||||
}
|
||||
|
||||
case "mclass":
|
||||
{
|
||||
// \neq and \ne are macros so we let "htmlmathml" render the mathmal
|
||||
// side of things and extract the text from that.
|
||||
const atomType = tree.mclass.slice(1); // $FlowFixMe: drop the leading "m" from the values in mclass
|
||||
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "mathchoice":
|
||||
{
|
||||
// TODO: track which style we're using, e.g. display, text, etc.
|
||||
// default to text style if even that may not be the correct style
|
||||
buildA11yStrings(tree.text, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "htmlmathml":
|
||||
{
|
||||
buildA11yStrings(tree.mathml, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "middle":
|
||||
{
|
||||
buildString(tree.delim, atomType, a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "internal":
|
||||
{
|
||||
// internal nodes are never included in the parse tree
|
||||
break;
|
||||
}
|
||||
|
||||
case "html":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
tree.type;
|
||||
throw new Error("KaTeX a11y un-recognized type: " + tree.type);
|
||||
}
|
||||
};
|
||||
|
||||
const buildA11yStrings = function (tree, a11yStrings, atomType) {
|
||||
if (a11yStrings === void 0) {
|
||||
a11yStrings = [];
|
||||
}
|
||||
|
||||
if (tree instanceof Array) {
|
||||
for (let i = 0; i < tree.length; i++) {
|
||||
buildA11yStrings(tree[i], a11yStrings, atomType);
|
||||
}
|
||||
} else {
|
||||
handleObject(tree, a11yStrings, atomType);
|
||||
}
|
||||
|
||||
return a11yStrings;
|
||||
};
|
||||
|
||||
const flatten = function (array) {
|
||||
let result = [];
|
||||
array.forEach(function (item) {
|
||||
if (item instanceof Array) {
|
||||
result = result.concat(flatten(item));
|
||||
} else {
|
||||
result.push(item);
|
||||
}
|
||||
});
|
||||
return result;
|
||||
};
|
||||
|
||||
const renderA11yString = function (text, settings) {
|
||||
const tree = katex__WEBPACK_IMPORTED_MODULE_0___default().__parse(text, settings);
|
||||
|
||||
const a11yStrings = buildA11yStrings(tree, [], "normal");
|
||||
return flatten(a11yStrings).join(", ");
|
||||
};
|
||||
|
||||
/* harmony default export */ __webpack_exports__["default"] = (renderA11yString);
|
||||
__webpack_exports__ = __webpack_exports__["default"];
|
||||
/******/ return __webpack_exports__;
|
||||
/******/ })()
|
||||
;
|
||||
});
|
||||
1
katex/contrib/render-a11y-string.min.js
vendored
Normal file
1
katex/contrib/render-a11y-string.min.js
vendored
Normal file
File diff suppressed because one or more lines are too long
800
katex/contrib/render-a11y-string.mjs
Normal file
800
katex/contrib/render-a11y-string.mjs
Normal file
@ -0,0 +1,800 @@
|
||||
import katex from '../katex.mjs';
|
||||
|
||||
/**
|
||||
* renderA11yString returns a readable string.
|
||||
*
|
||||
* In some cases the string will have the proper semantic math
|
||||
* meaning,:
|
||||
* renderA11yString("\\frac{1}{2}"")
|
||||
* -> "start fraction, 1, divided by, 2, end fraction"
|
||||
*
|
||||
* However, other cases do not:
|
||||
* renderA11yString("f(x) = x^2")
|
||||
* -> "f, left parenthesis, x, right parenthesis, equals, x, squared"
|
||||
*
|
||||
* The commas in the string aim to increase ease of understanding
|
||||
* when read by a screenreader.
|
||||
*/
|
||||
var stringMap = {
|
||||
"(": "left parenthesis",
|
||||
")": "right parenthesis",
|
||||
"[": "open bracket",
|
||||
"]": "close bracket",
|
||||
"\\{": "left brace",
|
||||
"\\}": "right brace",
|
||||
"\\lvert": "open vertical bar",
|
||||
"\\rvert": "close vertical bar",
|
||||
"|": "vertical bar",
|
||||
"\\uparrow": "up arrow",
|
||||
"\\Uparrow": "up arrow",
|
||||
"\\downarrow": "down arrow",
|
||||
"\\Downarrow": "down arrow",
|
||||
"\\updownarrow": "up down arrow",
|
||||
"\\leftarrow": "left arrow",
|
||||
"\\Leftarrow": "left arrow",
|
||||
"\\rightarrow": "right arrow",
|
||||
"\\Rightarrow": "right arrow",
|
||||
"\\langle": "open angle",
|
||||
"\\rangle": "close angle",
|
||||
"\\lfloor": "open floor",
|
||||
"\\rfloor": "close floor",
|
||||
"\\int": "integral",
|
||||
"\\intop": "integral",
|
||||
"\\lim": "limit",
|
||||
"\\ln": "natural log",
|
||||
"\\log": "log",
|
||||
"\\sin": "sine",
|
||||
"\\cos": "cosine",
|
||||
"\\tan": "tangent",
|
||||
"\\cot": "cotangent",
|
||||
"\\sum": "sum",
|
||||
"/": "slash",
|
||||
",": "comma",
|
||||
".": "point",
|
||||
"-": "negative",
|
||||
"+": "plus",
|
||||
"~": "tilde",
|
||||
":": "colon",
|
||||
"?": "question mark",
|
||||
"'": "apostrophe",
|
||||
"\\%": "percent",
|
||||
" ": "space",
|
||||
"\\ ": "space",
|
||||
"\\$": "dollar sign",
|
||||
"\\angle": "angle",
|
||||
"\\degree": "degree",
|
||||
"\\circ": "circle",
|
||||
"\\vec": "vector",
|
||||
"\\triangle": "triangle",
|
||||
"\\pi": "pi",
|
||||
"\\prime": "prime",
|
||||
"\\infty": "infinity",
|
||||
"\\alpha": "alpha",
|
||||
"\\beta": "beta",
|
||||
"\\gamma": "gamma",
|
||||
"\\omega": "omega",
|
||||
"\\theta": "theta",
|
||||
"\\sigma": "sigma",
|
||||
"\\lambda": "lambda",
|
||||
"\\tau": "tau",
|
||||
"\\Delta": "delta",
|
||||
"\\delta": "delta",
|
||||
"\\mu": "mu",
|
||||
"\\rho": "rho",
|
||||
"\\nabla": "del",
|
||||
"\\ell": "ell",
|
||||
"\\ldots": "dots",
|
||||
// TODO: add entries for all accents
|
||||
"\\hat": "hat",
|
||||
"\\acute": "acute"
|
||||
};
|
||||
var powerMap = {
|
||||
"prime": "prime",
|
||||
"degree": "degrees",
|
||||
"circle": "degrees",
|
||||
"2": "squared",
|
||||
"3": "cubed"
|
||||
};
|
||||
var openMap = {
|
||||
"|": "open vertical bar",
|
||||
".": ""
|
||||
};
|
||||
var closeMap = {
|
||||
"|": "close vertical bar",
|
||||
".": ""
|
||||
};
|
||||
var binMap = {
|
||||
"+": "plus",
|
||||
"-": "minus",
|
||||
"\\pm": "plus minus",
|
||||
"\\cdot": "dot",
|
||||
"*": "times",
|
||||
"/": "divided by",
|
||||
"\\times": "times",
|
||||
"\\div": "divided by",
|
||||
"\\circ": "circle",
|
||||
"\\bullet": "bullet"
|
||||
};
|
||||
var relMap = {
|
||||
"=": "equals",
|
||||
"\\approx": "approximately equals",
|
||||
"≠": "does not equal",
|
||||
"\\geq": "is greater than or equal to",
|
||||
"\\ge": "is greater than or equal to",
|
||||
"\\leq": "is less than or equal to",
|
||||
"\\le": "is less than or equal to",
|
||||
">": "is greater than",
|
||||
"<": "is less than",
|
||||
"\\leftarrow": "left arrow",
|
||||
"\\Leftarrow": "left arrow",
|
||||
"\\rightarrow": "right arrow",
|
||||
"\\Rightarrow": "right arrow",
|
||||
":": "colon"
|
||||
};
|
||||
var accentUnderMap = {
|
||||
"\\underleftarrow": "left arrow",
|
||||
"\\underrightarrow": "right arrow",
|
||||
"\\underleftrightarrow": "left-right arrow",
|
||||
"\\undergroup": "group",
|
||||
"\\underlinesegment": "line segment",
|
||||
"\\utilde": "tilde"
|
||||
};
|
||||
|
||||
var buildString = (str, type, a11yStrings) => {
|
||||
if (!str) {
|
||||
return;
|
||||
}
|
||||
|
||||
var ret;
|
||||
|
||||
if (type === "open") {
|
||||
ret = str in openMap ? openMap[str] : stringMap[str] || str;
|
||||
} else if (type === "close") {
|
||||
ret = str in closeMap ? closeMap[str] : stringMap[str] || str;
|
||||
} else if (type === "bin") {
|
||||
ret = binMap[str] || str;
|
||||
} else if (type === "rel") {
|
||||
ret = relMap[str] || str;
|
||||
} else {
|
||||
ret = stringMap[str] || str;
|
||||
} // If the text to add is a number and there is already a string
|
||||
// in the list and the last string is a number then we should
|
||||
// combine them into a single number
|
||||
|
||||
|
||||
if (/^\d+$/.test(ret) && a11yStrings.length > 0 && // TODO(kevinb): check that the last item in a11yStrings is a string
|
||||
// I think we might be able to drop the nested arrays, which would make
|
||||
// this easier to type
|
||||
// $FlowFixMe
|
||||
/^\d+$/.test(a11yStrings[a11yStrings.length - 1])) {
|
||||
a11yStrings[a11yStrings.length - 1] += ret;
|
||||
} else if (ret) {
|
||||
a11yStrings.push(ret);
|
||||
}
|
||||
};
|
||||
|
||||
var buildRegion = (a11yStrings, callback) => {
|
||||
var regionStrings = [];
|
||||
a11yStrings.push(regionStrings);
|
||||
callback(regionStrings);
|
||||
};
|
||||
|
||||
var handleObject = (tree, a11yStrings, atomType) => {
|
||||
// Everything else is assumed to be an object...
|
||||
switch (tree.type) {
|
||||
case "accent":
|
||||
{
|
||||
buildRegion(a11yStrings, a11yStrings => {
|
||||
buildA11yStrings(tree.base, a11yStrings, atomType);
|
||||
a11yStrings.push("with");
|
||||
buildString(tree.label, "normal", a11yStrings);
|
||||
a11yStrings.push("on top");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "accentUnder":
|
||||
{
|
||||
buildRegion(a11yStrings, a11yStrings => {
|
||||
buildA11yStrings(tree.base, a11yStrings, atomType);
|
||||
a11yStrings.push("with");
|
||||
buildString(accentUnderMap[tree.label], "normal", a11yStrings);
|
||||
a11yStrings.push("underneath");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "accent-token":
|
||||
{
|
||||
// Used internally by accent symbols.
|
||||
break;
|
||||
}
|
||||
|
||||
case "atom":
|
||||
{
|
||||
var {
|
||||
text
|
||||
} = tree;
|
||||
|
||||
switch (tree.family) {
|
||||
case "bin":
|
||||
{
|
||||
buildString(text, "bin", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "close":
|
||||
{
|
||||
buildString(text, "close", a11yStrings);
|
||||
break;
|
||||
}
|
||||
// TODO(kevinb): figure out what should be done for inner
|
||||
|
||||
case "inner":
|
||||
{
|
||||
buildString(tree.text, "inner", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "open":
|
||||
{
|
||||
buildString(text, "open", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "punct":
|
||||
{
|
||||
buildString(text, "punct", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "rel":
|
||||
{
|
||||
buildString(text, "rel", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
{
|
||||
tree.family;
|
||||
throw new Error("\"" + tree.family + "\" is not a valid atom type");
|
||||
}
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case "color":
|
||||
{
|
||||
var color = tree.color.replace(/katex-/, "");
|
||||
buildRegion(a11yStrings, regionStrings => {
|
||||
regionStrings.push("start color " + color);
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end color " + color);
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "color-token":
|
||||
{
|
||||
// Used by \color, \colorbox, and \fcolorbox but not directly rendered.
|
||||
// It's a leaf node and has no children so just break.
|
||||
break;
|
||||
}
|
||||
|
||||
case "delimsizing":
|
||||
{
|
||||
if (tree.delim && tree.delim !== ".") {
|
||||
buildString(tree.delim, "normal", a11yStrings);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case "genfrac":
|
||||
{
|
||||
buildRegion(a11yStrings, regionStrings => {
|
||||
// genfrac can have unbalanced delimiters
|
||||
var {
|
||||
leftDelim,
|
||||
rightDelim
|
||||
} = tree; // NOTE: Not sure if this is a safe assumption
|
||||
// hasBarLine true -> fraction, false -> binomial
|
||||
|
||||
if (tree.hasBarLine) {
|
||||
regionStrings.push("start fraction");
|
||||
leftDelim && buildString(leftDelim, "open", regionStrings);
|
||||
buildA11yStrings(tree.numer, regionStrings, atomType);
|
||||
regionStrings.push("divided by");
|
||||
buildA11yStrings(tree.denom, regionStrings, atomType);
|
||||
rightDelim && buildString(rightDelim, "close", regionStrings);
|
||||
regionStrings.push("end fraction");
|
||||
} else {
|
||||
regionStrings.push("start binomial");
|
||||
leftDelim && buildString(leftDelim, "open", regionStrings);
|
||||
buildA11yStrings(tree.numer, regionStrings, atomType);
|
||||
regionStrings.push("over");
|
||||
buildA11yStrings(tree.denom, regionStrings, atomType);
|
||||
rightDelim && buildString(rightDelim, "close", regionStrings);
|
||||
regionStrings.push("end binomial");
|
||||
}
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "hbox":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "kern":
|
||||
{
|
||||
// No op: we don't attempt to present kerning information
|
||||
// to the screen reader.
|
||||
break;
|
||||
}
|
||||
|
||||
case "leftright":
|
||||
{
|
||||
buildRegion(a11yStrings, regionStrings => {
|
||||
buildString(tree.left, "open", regionStrings);
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
buildString(tree.right, "close", regionStrings);
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "leftright-right":
|
||||
{
|
||||
// TODO: double check that this is a no-op
|
||||
break;
|
||||
}
|
||||
|
||||
case "lap":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "mathord":
|
||||
{
|
||||
buildString(tree.text, "normal", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "op":
|
||||
{
|
||||
var {
|
||||
body,
|
||||
name
|
||||
} = tree;
|
||||
|
||||
if (body) {
|
||||
buildA11yStrings(body, a11yStrings, atomType);
|
||||
} else if (name) {
|
||||
buildString(name, "normal", a11yStrings);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case "op-token":
|
||||
{
|
||||
// Used internally by operator symbols.
|
||||
buildString(tree.text, atomType, a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "ordgroup":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "overline":
|
||||
{
|
||||
buildRegion(a11yStrings, function (a11yStrings) {
|
||||
a11yStrings.push("start overline");
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
a11yStrings.push("end overline");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "pmb":
|
||||
{
|
||||
a11yStrings.push("bold");
|
||||
break;
|
||||
}
|
||||
|
||||
case "phantom":
|
||||
{
|
||||
a11yStrings.push("empty space");
|
||||
break;
|
||||
}
|
||||
|
||||
case "raisebox":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "rule":
|
||||
{
|
||||
a11yStrings.push("rectangle");
|
||||
break;
|
||||
}
|
||||
|
||||
case "sizing":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "spacing":
|
||||
{
|
||||
a11yStrings.push("space");
|
||||
break;
|
||||
}
|
||||
|
||||
case "styling":
|
||||
{
|
||||
// We ignore the styling and just pass through the contents
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "sqrt":
|
||||
{
|
||||
buildRegion(a11yStrings, regionStrings => {
|
||||
var {
|
||||
body,
|
||||
index
|
||||
} = tree;
|
||||
|
||||
if (index) {
|
||||
var indexString = flatten(buildA11yStrings(index, [], atomType)).join(",");
|
||||
|
||||
if (indexString === "3") {
|
||||
regionStrings.push("cube root of");
|
||||
buildA11yStrings(body, regionStrings, atomType);
|
||||
regionStrings.push("end cube root");
|
||||
return;
|
||||
}
|
||||
|
||||
regionStrings.push("root");
|
||||
regionStrings.push("start index");
|
||||
buildA11yStrings(index, regionStrings, atomType);
|
||||
regionStrings.push("end index");
|
||||
return;
|
||||
}
|
||||
|
||||
regionStrings.push("square root of");
|
||||
buildA11yStrings(body, regionStrings, atomType);
|
||||
regionStrings.push("end square root");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "supsub":
|
||||
{
|
||||
var {
|
||||
base,
|
||||
sub,
|
||||
sup
|
||||
} = tree;
|
||||
var isLog = false;
|
||||
|
||||
if (base) {
|
||||
buildA11yStrings(base, a11yStrings, atomType);
|
||||
isLog = base.type === "op" && base.name === "\\log";
|
||||
}
|
||||
|
||||
if (sub) {
|
||||
var regionName = isLog ? "base" : "subscript";
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start " + regionName);
|
||||
buildA11yStrings(sub, regionStrings, atomType);
|
||||
regionStrings.push("end " + regionName);
|
||||
});
|
||||
}
|
||||
|
||||
if (sup) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
var supString = flatten(buildA11yStrings(sup, [], atomType)).join(",");
|
||||
|
||||
if (supString in powerMap) {
|
||||
regionStrings.push(powerMap[supString]);
|
||||
return;
|
||||
}
|
||||
|
||||
regionStrings.push("start superscript");
|
||||
buildA11yStrings(sup, regionStrings, atomType);
|
||||
regionStrings.push("end superscript");
|
||||
});
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case "text":
|
||||
{
|
||||
// TODO: handle other fonts
|
||||
if (tree.font === "\\textbf") {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start bold text");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end bold text");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start text");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end text");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "textord":
|
||||
{
|
||||
buildString(tree.text, atomType, a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "smash":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "enclose":
|
||||
{
|
||||
// TODO: create a map for these.
|
||||
// TODO: differentiate between a body with a single atom, e.g.
|
||||
// "cancel a" instead of "start cancel, a, end cancel"
|
||||
if (/cancel/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start cancel");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end cancel");
|
||||
});
|
||||
break;
|
||||
} else if (/box/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start box");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end box");
|
||||
});
|
||||
break;
|
||||
} else if (/sout/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start strikeout");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end strikeout");
|
||||
});
|
||||
break;
|
||||
} else if (/phase/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function (regionStrings) {
|
||||
regionStrings.push("start phase angle");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end phase angle");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
throw new Error("KaTeX-a11y: enclose node with " + tree.label + " not supported yet");
|
||||
}
|
||||
|
||||
case "vcenter":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "vphantom":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: vphantom not implemented yet");
|
||||
}
|
||||
|
||||
case "hphantom":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: hphantom not implemented yet");
|
||||
}
|
||||
|
||||
case "operatorname":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "array":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: array not implemented yet");
|
||||
}
|
||||
|
||||
case "raw":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: raw not implemented yet");
|
||||
}
|
||||
|
||||
case "size":
|
||||
{
|
||||
// Although there are nodes of type "size" in the parse tree, they have
|
||||
// no semantic meaning and should be ignored.
|
||||
break;
|
||||
}
|
||||
|
||||
case "url":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: url not implemented yet");
|
||||
}
|
||||
|
||||
case "tag":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: tag not implemented yet");
|
||||
}
|
||||
|
||||
case "verb":
|
||||
{
|
||||
buildString("start verbatim", "normal", a11yStrings);
|
||||
buildString(tree.body, "normal", a11yStrings);
|
||||
buildString("end verbatim", "normal", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "environment":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: environment not implemented yet");
|
||||
}
|
||||
|
||||
case "horizBrace":
|
||||
{
|
||||
buildString("start " + tree.label.slice(1), "normal", a11yStrings);
|
||||
buildA11yStrings(tree.base, a11yStrings, atomType);
|
||||
buildString("end " + tree.label.slice(1), "normal", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "infix":
|
||||
{
|
||||
// All infix nodes are replace with other nodes.
|
||||
break;
|
||||
}
|
||||
|
||||
case "includegraphics":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: includegraphics not implemented yet");
|
||||
}
|
||||
|
||||
case "font":
|
||||
{
|
||||
// TODO: callout the start/end of specific fonts
|
||||
// TODO: map \BBb{N} to "the naturals" or something like that
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "href":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: href not implemented yet");
|
||||
}
|
||||
|
||||
case "cr":
|
||||
{
|
||||
// This is used by environments.
|
||||
throw new Error("KaTeX-a11y: cr not implemented yet");
|
||||
}
|
||||
|
||||
case "underline":
|
||||
{
|
||||
buildRegion(a11yStrings, function (a11yStrings) {
|
||||
a11yStrings.push("start underline");
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
a11yStrings.push("end underline");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "xArrow":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: xArrow not implemented yet");
|
||||
}
|
||||
|
||||
case "cdlabel":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: cdlabel not implemented yet");
|
||||
}
|
||||
|
||||
case "cdlabelparent":
|
||||
{
|
||||
throw new Error("KaTeX-a11y: cdlabelparent not implemented yet");
|
||||
}
|
||||
|
||||
case "mclass":
|
||||
{
|
||||
// \neq and \ne are macros so we let "htmlmathml" render the mathmal
|
||||
// side of things and extract the text from that.
|
||||
var _atomType = tree.mclass.slice(1); // $FlowFixMe: drop the leading "m" from the values in mclass
|
||||
|
||||
|
||||
buildA11yStrings(tree.body, a11yStrings, _atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "mathchoice":
|
||||
{
|
||||
// TODO: track which style we're using, e.g. display, text, etc.
|
||||
// default to text style if even that may not be the correct style
|
||||
buildA11yStrings(tree.text, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "htmlmathml":
|
||||
{
|
||||
buildA11yStrings(tree.mathml, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "middle":
|
||||
{
|
||||
buildString(tree.delim, atomType, a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "internal":
|
||||
{
|
||||
// internal nodes are never included in the parse tree
|
||||
break;
|
||||
}
|
||||
|
||||
case "html":
|
||||
{
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
tree.type;
|
||||
throw new Error("KaTeX a11y un-recognized type: " + tree.type);
|
||||
}
|
||||
};
|
||||
|
||||
var buildA11yStrings = function buildA11yStrings(tree, a11yStrings, atomType) {
|
||||
if (a11yStrings === void 0) {
|
||||
a11yStrings = [];
|
||||
}
|
||||
|
||||
if (tree instanceof Array) {
|
||||
for (var i = 0; i < tree.length; i++) {
|
||||
buildA11yStrings(tree[i], a11yStrings, atomType);
|
||||
}
|
||||
} else {
|
||||
handleObject(tree, a11yStrings, atomType);
|
||||
}
|
||||
|
||||
return a11yStrings;
|
||||
};
|
||||
|
||||
var flatten = function flatten(array) {
|
||||
var result = [];
|
||||
array.forEach(function (item) {
|
||||
if (item instanceof Array) {
|
||||
result = result.concat(flatten(item));
|
||||
} else {
|
||||
result.push(item);
|
||||
}
|
||||
});
|
||||
return result;
|
||||
};
|
||||
|
||||
var renderA11yString = function renderA11yString(text, settings) {
|
||||
var tree = katex.__parse(text, settings);
|
||||
|
||||
var a11yStrings = buildA11yStrings(tree, [], "normal");
|
||||
return flatten(a11yStrings).join(", ");
|
||||
};
|
||||
|
||||
export { renderA11yString as default };
|
||||
BIN
katex/fonts/KaTeX_AMS-Regular.ttf
Normal file
BIN
katex/fonts/KaTeX_AMS-Regular.ttf
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_AMS-Regular.woff
Normal file
BIN
katex/fonts/KaTeX_AMS-Regular.woff
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_AMS-Regular.woff2
Normal file
BIN
katex/fonts/KaTeX_AMS-Regular.woff2
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Caligraphic-Bold.ttf
Normal file
BIN
katex/fonts/KaTeX_Caligraphic-Bold.ttf
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Caligraphic-Bold.woff
Normal file
BIN
katex/fonts/KaTeX_Caligraphic-Bold.woff
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Caligraphic-Bold.woff2
Normal file
BIN
katex/fonts/KaTeX_Caligraphic-Bold.woff2
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Caligraphic-Regular.ttf
Normal file
BIN
katex/fonts/KaTeX_Caligraphic-Regular.ttf
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Caligraphic-Regular.woff
Normal file
BIN
katex/fonts/KaTeX_Caligraphic-Regular.woff
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Caligraphic-Regular.woff2
Normal file
BIN
katex/fonts/KaTeX_Caligraphic-Regular.woff2
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Fraktur-Bold.ttf
Normal file
BIN
katex/fonts/KaTeX_Fraktur-Bold.ttf
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Fraktur-Bold.woff
Normal file
BIN
katex/fonts/KaTeX_Fraktur-Bold.woff
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Fraktur-Bold.woff2
Normal file
BIN
katex/fonts/KaTeX_Fraktur-Bold.woff2
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Fraktur-Regular.ttf
Normal file
BIN
katex/fonts/KaTeX_Fraktur-Regular.ttf
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Fraktur-Regular.woff
Normal file
BIN
katex/fonts/KaTeX_Fraktur-Regular.woff
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Fraktur-Regular.woff2
Normal file
BIN
katex/fonts/KaTeX_Fraktur-Regular.woff2
Normal file
Binary file not shown.
BIN
katex/fonts/KaTeX_Main-Bold.ttf
Normal file
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