Function getFileLanguageId

src/lib/editorManager.js:798–817

(file)

	}

	function getFileLanguageId(file) {
		if (!file) return "plaintext";
		const mode = file.currentMode || file.mode;
		if (mode) {
			const modeInfo = getMode(String(mode));
			if (modeInfo?.name) return String(modeInfo.name).toLowerCase();
			return String(mode).toLowerCase();
		}
		try {
			const guess = getModeForPath(file.filename || file.name || "");
			if (guess?.name) return String(guess.name).toLowerCase();
		} catch (error) {
			warnRecoverable(
				`Failed to resolve language id for ${file.filename || file.name || "untitled file"}`,
				error,
				"language-id-resolution",
			);
		}
		return "plaintext";
	}

	function resolveRootUriForContext(context = {}) {
		const uri = context.uri || context.file?.uri;