sbool mmo2_matchWithTypos(S pattern, S s, int maxTypos default 1) {
  ret mmo2_matchWithTypos(mmo2_parsePattern(pattern), s, maxTypos);
}

sbool mmo2_matchWithTypos(MMOPattern pattern, S s, int maxTypos default 1) {
  if (maxTypos == 0) ret mmo2_match(pattern, s);
  Int score = mmo2_levenWithSwapsScore(pattern, s);
  ret score != null && score <= maxTypos;
}

Began life as a copy of #1028074