Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | 2x 2x 2x 2x 2x 2x 2x 8238x 8238x 2x 2x 2x 7700x 7700x 2x 2x 2x 2x 2x 2x 538x 538x 323x 538x 538x 2x 2x 2x | const SQUARE_BRACKET_OPEN = '['.charCodeAt(0);
const SQUARE_BRACKET_CLOSE = ']'.charCodeAt(0);
const CURLY_BRACKET_OPEN = '{'.charCodeAt(0);
const CURLY_BRACKET_CLOSE = '}'.charCodeAt(0);
 
/** @param {number} code */
export function is_bracket_open(code) {
	return code === SQUARE_BRACKET_OPEN || code === CURLY_BRACKET_OPEN;
}
 
/** @param {number} code */
export function is_bracket_close(code) {
	return code === SQUARE_BRACKET_CLOSE || code === CURLY_BRACKET_CLOSE;
}
 
/**
 * @param {number} open
 * @param {number} close
 */
export function is_bracket_pair(open, close) {
	return (
		(open === SQUARE_BRACKET_OPEN && close === SQUARE_BRACKET_CLOSE) ||
		(open === CURLY_BRACKET_OPEN && close === CURLY_BRACKET_CLOSE)
	);
}
 
/** @param {number} open */
export function get_bracket_close(open) {
	if (open === SQUARE_BRACKET_OPEN) {
		return SQUARE_BRACKET_CLOSE;
	}
	if (open === CURLY_BRACKET_OPEN) {
		return CURLY_BRACKET_CLOSE;
	}
}
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