Function parseClassInString

src/pkg/utils/regex_to_glob.ts:277–292

(s: string, idx: number)

  // ----- Simple sequence analysis ----- 简单序列分析
  function parseClassInString(s: string, idx: number): number {
    idx++;
    if (idx < s.length && s[idx] === "^") idx++;
    let first = true;
    while (idx < s.length) {
      const ch = s[idx++];
      if (ch === "\\") {
        if (idx >= s.length) return -1;
        idx++;
      } else if (ch === "]" && !first) {
        return idx;
      }
      first = false;
    }
    return -1;
  }

  interface QuantifierResult {
    ok: boolean;