String::split

Split this string on occurrences of needle.

"a,b".split(",") //-> ["a", "b"]
"ab".split(",") //-> ["ab"]
"a,,b,".split(",") //-> ["a", "", "b", ""]
"".split(",") //-> []

Source Codepublic method split(this: String, needle: String): List<String> {
  if this == "" {
    return []
  }

  let s = this

  let parts: List<String> = []
  while True {
    match s.index_of(needle) {
      Some(i) => {
        parts = parts.append(s.substring(0, i))
        s = s.substring(i + needle.len(), s.len())
      }
      None => {
        parts = parts.append(s)
        break
      }
    }

  }

  parts
}