是否有相当于Python的Scala的difflib.SequenceMatcher

Question

Scala中是否存在实现difflib.SequenceMatcher的内容？我需要将我的一些生产代码从Python转换为Scala，但不想使用会改变SequenceMatcher先前输出的东西。

非常感谢任何建议。

Answer 1

经过一番搜索，我找不到任何东西，所以我研究了SequenceMatcher并编写了它。在Scala中它实际上非常简单。请随意使用或改进。

/**
* Class SequenceMatcher - A simplified implimetation of Python's SequenceMatcher
*                         Currently only supports strings and ratio()
* @version 0.1
* @param stringA - first string
* @param stringB - second string
*/
class SequenceMatcher(stringA: String, stringB: String) {
  /**
  * ratio()
  * @return Return a measure of the sequences’ similarity as a float in the range [0, 1]
  */
  def ratio(): Double = {
    (2.0 * numOfMatches()) / (stringA.length() + stringB.length())
  }
  /**
  * numOfMatches()
  * @return number of characters that match in the two strings
  */
  def numOfMatches(): Long = {
    stringA.intersect(stringB).length()
  }
}