@discord-user-card/markdown/lib/rules/codeBlock.js

A markdown parser for Discord

import { defaultRules, htmlTag, inlineRegex } from "simple-markdown";
import hljs from "highlight.js";
// eslint-disable-next-line regexp/no-super-linear-backtracking, regexp/prefer-w, regexp/no-useless-lazy, regexp/match-any
const codeBlockRegex = /^```(?:([a-z0-9_+\-.#]+?)\n)?\n*([^\n][^]*?)\n*```/i;
export const codeBlock = {
    match: inlineRegex(codeBlockRegex),
    parse(capture, _parse, state) {
        return {
            lang: (capture[1] || "").trim(),
            content: capture[2] || "",
            inQuote: state.inQuote || false,
        };
    },
    order: defaultRules.codeBlock.order,
    html(node) {
        const unknownLang = () => htmlTag("pre", htmlTag("code", node.content, { class: "hljs duc_scrollbar_ghost_hairline" }));
        if (!node.lang || !hljs.getLanguage(node.lang) || typeof node.content !== "string") {
            return unknownLang();
        }
        const result = hljs.highlight(node.content, {
            language: node.lang,
            ignoreIllegals: true,
        });
        if (!result)
            return unknownLang();
        return htmlTag("pre", htmlTag("code", result.value, { class: `hljs duc_scrollbar_ghost_hairline ${result.language}` }));
    },
};
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