Method exec

packages/utils/renderer/highlight.js:607–617

(e)

							this.rules.push([e, n]), 'begin' === n.type && this.count++;
						}
						exec(e) {
							const n = this.getMatcher(this.regexIndex);
							n.lastIndex = this.lastIndex;
							const t = n.exec(e);
							return (
								t &&
									((this.regexIndex += t.position + 1),
									this.regexIndex === this.count && (this.regexIndex = 0)),
								t
							);
						}
					}
					function i(e, n) {
						const t = e.input[e.index - 1],