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import markdownIt from "markdown-it";
import TemplateEngine from "./TemplateEngine.js";
export default class Markdown extends TemplateEngine {
constructor(name, eleventyConfig) {
super(name, eleventyConfig);
this.markdownOptions = {};
this.setLibrary(this.config.libraryOverrides.md);
}
get cacheable() {
return true;
}
setLibrary(mdLib) {
this.mdLib = mdLib || markdownIt(this.getMarkdownOptions());
// Overrides a highlighter set in `markdownOptions`
// This is separate so devs can pass in a new mdLib and still use the official eleventy plugin for markdown highlighting
if (this.config.markdownHighlighter && typeof this.mdLib.set === "function") {
this.mdLib.set({
highlight: this.config.markdownHighlighter,
});
}
if (typeof this.mdLib.disable === "function") {
// Disable indented code blocks by default (Issue #2438)
this.mdLib.disable("code");
}
this.setEngineLib(this.mdLib, Boolean(this.config.libraryOverrides.md));
}
setMarkdownOptions(options) {
this.markdownOptions = options;
}
getMarkdownOptions() {
// work with "mode" presets https://github.com/markdown-it/markdown-it#init-with-presets-and-options
if (typeof this.markdownOptions === "string") {
return this.markdownOptions;
}
return Object.assign(
{
html: true,
},
this.markdownOptions || {},
);
}
// TODO use preTemplateEngine to help inform this
// needsCompilation() {
// return super.needsCompilation();
// }
async #getPreEngine(preTemplateEngine) {
if (typeof preTemplateEngine === "string") {
return this.engineManager.getEngine(preTemplateEngine, this.extensionMap);
}
return preTemplateEngine;
}
async compile(str, inputPath, preTemplateEngine, bypassMarkdown) {
let mdlib = this.mdLib;
if (preTemplateEngine) {
let engine = await this.#getPreEngine(preTemplateEngine);
let fnReady = engine.compile(str, inputPath);
if (bypassMarkdown) {
return async function (data) {
let fn = await fnReady;
return fn(data);
};
} else {
return async function (data) {
let fn = await fnReady;
let preTemplateEngineRender = await fn(data);
let finishedRender = mdlib.render(preTemplateEngineRender, data);
return finishedRender;
};
}
} else {
if (bypassMarkdown) {
return function () {
return str;
};
} else {
return function (data) {
return mdlib.render(str, data);
};
}
}
}
}
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