text: export const openingTagMap = new Map([
  	[')', '('],
  	[']', '['],
  	['}', '{'],
  	['>', '<'],
  ]);
  
  export function isOpeningTag(char) {
  	const openingTags = ['<', '[', '{', '('];
  
  	return openingTags.includes(char);
  }
  