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/* SPDX-License-Identifier: GPL-2.0-only */
(function () {
const base = new URL(".", document.currentScript.src);
document.addEventListener("DOMContentLoaded", async function () {
const code = document.querySelector("#cgit table.blob td.lines pre > code");
if (!code || code.children.length)
return;
const style = document.createElement("link");
style.rel = "stylesheet";
style.href = new URL("style.css", base).href;
document.head.appendChild(style);
const crumb = document.querySelector("#cgit .path a:last-child");
const filename = crumb?.textContent.split("/").pop() || "";
const text = code.textContent;
try {
const { rules, interpreters, dependencies } = await import(new URL("filenames.js", base).href);
let names = rules.filter(([, pattern]) => pattern.test(filename)).map(([name]) => name);
const shebang = !names.length && /^#![ \t]*(\S+)([^\r\n]*)/.exec(text);
if (shebang) {
let command = shebang[1];
if (command.split("/").pop() === "env") {
const args = shebang[2].trim();
const split = /^(?:-S[ \t]*|--split-string(?:=|[ \t]+))/.exec(args);
const word = split
? /^(?:"([\w./+-]+)"|'([\w./+-]+)'|([\w./+-]+))(?:[ \t]|$)/.exec(args.slice(split[0].length))
: /^([\w./+-]+)$/.exec(args);
command = word?.slice(1).find(Boolean) || "";
}
const interpreter = command.split("/").pop();
names = interpreters.filter(([, pattern]) => pattern.test(interpreter)).map(([name]) => name);
}
names = [...new Set(names)].filter(name => name !== "plaintext");
if (!names.length)
return;
const { default: hljs } = await import(new URL("core.min.js", base).href);
const needed = new Set(names.flatMap(name => [name, ...(dependencies[name] || [])]));
await Promise.all([...needed].map(async name => {
const { default: grammar } = await import(new URL(`languages/${name}.min.js`, base).href);
hljs.registerLanguage(name, grammar);
}));
let best;
for (const language of names) {
const result = hljs.highlight(text, { language, ignoreIllegals: names.length === 1 });
if (!result.illegal && (!best || result.relevance > best.relevance))
best = result;
}
if (best) {
code.innerHTML = best.value;
code.classList.add("hljs");
}
} catch (error) {
console.warn("Syntax highlighting failed:", error);
}
});
})();
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