code block for README-1

README-1

package wscrambler

import java.io.File

// 4+ Latin letters, 2+ distinct inners
private val WORD_REGEX =
  """\p{IsLatin}(\p{IsLatin})\1*(?!\1)\p{IsLatin}\p{IsLatin}+"""
    .toRegex()

// Scramble words within text
fun scrambleWords(text: String): String{

  // Copy input text to output array
  val result = text.toCharArray()

  // Examine text looking for matches
  WORD_REGEX.findAll(text)
    .forEach { match->
      // Define range of inner letters
      val range = match.range.first + 1
        until match.range.last
      do {
        // Shuffle inner letter array
        for (i in range) {
          // Choose random region index
          val rndIdx = range.random()
         // Swap current/random chars
          result[rndIdx]=result[i].also {
              result[i] = result[rndIdx]
          }
        }
          // Ensure shuffling took place!
      } while (range.all {
          result[it] == text[it]
        })
    }

  // Return scrambled text as string
  return String(result)
}