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Add syntax highlighting

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Explicitly disable HTML rendering.
Updated description.
This commit is contained in:
j433866 2019-08-29 14:08:07 +01:00
parent 45fccb94e1
commit b94eb6adb0
1 changed files with 17 additions and 7 deletions
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24
src/core/operations/RenderMarkdown.mjs
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@ -4,8 +4,9 @@
* @license Apache-2.0 * @license Apache-2.0
*/ */
import Operation from "../Operation"; import Operation from "../Operation.mjs";
import MarkdownIt from "markdown-it"; import MarkdownIt from "markdown-it";
import hljs from "highlight.js";
/** /**
* Render Markdown operation * Render Markdown operation
@ -20,7 +21,7 @@ class RenderMarkdown extends Operation {
this.name = "Render Markdown"; this.name = "Render Markdown";
this.module = "Default"; this.module = "Default";
this.description = "Renders Markdown as HTML."; this.description = "Renders input Markdown as HTML.";
this.infoURL = "https://wikipedia.org/wiki/Markdown"; this.infoURL = "https://wikipedia.org/wiki/Markdown";
this.inputType = "string"; this.inputType = "string";
this.outputType = "html"; this.outputType = "html";
@ -31,9 +32,9 @@ class RenderMarkdown extends Operation {
value: false value: false
}, },
{ {
name: "Convert \\n to <br>", name: "Enable syntax highlighting",
type: "boolean", type: "boolean",
value: false value: true
} }
]; ];
} }
@ -44,10 +45,19 @@ class RenderMarkdown extends Operation {
* @returns {html} * @returns {html}
*/ */
run(input, args) { run(input, args) {
const [convertLinks, convertNewLine] = args, const [convertLinks, enableHighlighting] = args,
md = new MarkdownIt({ md = new MarkdownIt({
breaks: convertNewLine, linkify: convertLinks,
linkify: convertLinks html: false, // Explicitly disable HTML rendering
highlight: function(str, lang) {
if (lang && hljs.getLanguage(lang) && enableHighlighting) {
try {
return hljs.highlight(lang, str).value;
} catch (__) {}
}
return "";
}
}), }),
rendered = md.render(input); rendered = md.render(input);