Function parseKeybinding

src/tinykeys.ts:171–198

(str: string)

 * ```
 */
export function parseKeybinding(str: string): KeybindingPress[] {
	return str
		.trim()
		.split(" ")
		.map(press => {
			let parts = press.split(/(?<=\w|\])\+/)

			let last: string | RegExp = parts.pop() as string
			let regex = last.match(/^\((.+)\)$/)
			let key = regex ? new RegExp(`^(?:${regex[1]})$`, "iv") : last

			let requiredModifiers: string[] = []
			let optionalModifiers: string[] = []

			for (const part of parts) {
				let optional = part.match(/^\[(.*)\]$/)
				let mod = optional?.[1] ?? part
				mod = mod === "$mod" ? MOD : mod
				if (optional) {
					optionalModifiers.push(mod)
				} else {
					requiredModifiers.push(mod)
				}
			}

			return [requiredModifiers, optionalModifiers, key]
		})
}

/**
 * This tells us if a single keyboard event matches a single keybinding press.