angular-cn/aio/tools/transforms/angular-base-package/post-processors/auto-link-code.js

37 lines
1.2 KiB
JavaScript

const visit = require('unist-util-visit');
const is = require('hast-util-is-element');
const textContent = require('hast-util-to-string');
/**
* Automatically add in a link to the relevant document for simple
* code blocks, e.g. `<code>MyClass</code>` becomes
* `<code><a href="path/to/myclass">MyClass</a></code>`
*
* @property docTypes an array of strings. Only docs that have one of these docTypes
* will be linked to.
* Usually set to the API exported docTypes, e.g. "class", "function", "directive", etc.
*/
module.exports = function autoLinkCode(getDocFromAlias) {
autoLinkCodeImpl.docTypes = [];
return autoLinkCodeImpl;
function autoLinkCodeImpl() {
return (ast) => {
visit(ast, node => {
if (is(node, 'code')) {
const docs = getDocFromAlias(textContent(node));
if (docs.length === 1 && autoLinkCodeImpl.docTypes.indexOf(docs[0].docType) !== -1) {
const link = {
type: 'element',
tagName: 'a',
properties: { href: docs[0].path },
children: node.children
};
node.children = [link];
}
}
});
};
}
};