trimAround method

String trimAround(
  1. dynamic characters, {
  2. bool trimStart = true,
  3. bool trimEnd = true,
  4. bool trimWhitespace = true,
})

Implementation

String trimAround(dynamic characters,
    {bool trimStart = true,
    bool trimEnd = true,
    bool trimWhitespace = true}) {
  final target = this;
  var manipulated = target;
  if (trimWhitespace) {
    manipulated = manipulated.trim();
  }

  final chars = characters is List<String> ? characters : ["$characters"];
  int i = 0;
  while (true && i++ < 30) {
    bool done = true;
    for (final c in chars) {
      if (trimEnd && manipulated.endsWith(c)) {
        manipulated = manipulated.substring(0, manipulated.length - c.length);
        done = false;
      }
      if (trimStart && manipulated.startsWith(c)) {
        manipulated = manipulated.substring(1);
        done = false;
      }
    }

    if (done) break;
  }
  return manipulated;
}