Function removeMode

src/cm/modelist.ts:75–93

(name: string)

 * Remove language mode from CodeMirror editor
 */
export function removeMode(name: string): void {
	const filename = normalizeModeKey(name);
	const mode = modesByName[filename];
	if (!mode) return;

	delete modesByName[mode.name];
	mode.aliases.forEach((alias) => {
		if (modesByName[alias] === mode) {
			delete modesByName[alias];
		}
	});

	const modeIndex = modes.findIndex(
		(registeredMode) => registeredMode === mode,
	);
	if (modeIndex >= 0) {
		modes.splice(modeIndex, 1);
	}
}

/**
 * Get mode for file path