64 lines
2.3 KiB
Kotlin
64 lines
2.3 KiB
Kotlin
package OOP.Java.lab_5
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class Text(textString: String) {
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var textArray = Pair(splitSentences(textString), splitPunctuation(textString))
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private fun splitSentences(textString: String): Array<Sentence> {
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return textString.split("[.!?] ?".toRegex()).filter { it.isNotEmpty() }.map { sentence -> Sentence(sentence) }.toTypedArray()
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}
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private fun splitPunctuation(textString: String): Array<Punctuation> {
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return textString.split("(?<=[.!?]) ?".toRegex()).filter { it.isNotEmpty() }.map { sentence -> Punctuation(sentence.last().toString()) }.toTypedArray()
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}
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fun getAllLetters(): Array<Letter> {
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var allLetters = arrayOf<Letter>()
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this.textArray.first.forEach { allLetters += it.getAllLetters() }
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return allLetters
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}
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fun palindromeSearch(): String {
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var results = arrayOf<String>()
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val letters = this.getAllLetters()
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for (leftBoundary in letters.indices) {
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for (rightBoundary in letters.lastIndex downTo leftBoundary + 1) {
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val subToC = letters.sliceArray(leftBoundary..rightBoundary)
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// println(subToC.joinToString(""))
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if (subToC.first().equals(subToC.last(), true) && subToC.size >= 3 && this.checkReverse(subToC)) {
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// println(subToC.joinToString(""))
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results += subToC.joinToString("")
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}
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}
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}
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return results.maxBy { it.length }
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}
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private fun checkReverse(substring: Array<Letter>): Boolean {
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var leftBoundary = 0
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var rightBoundary = substring.lastIndex
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var result = false
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var correction = 0
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if (substring.size % 2 != 0) {
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correction = 1
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}
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while (leftBoundary < substring.size / 2 && rightBoundary >= substring.size / 2 + correction) {
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leftBoundary++
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rightBoundary--
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result = substring[leftBoundary].equals(substring[rightBoundary], true)
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}
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return result
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}
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override fun toString(): String {
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var text = arrayOf<String>()
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for (i in this.textArray.first.indices) {
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text += this.textArray.first[i].toString() + this.textArray.second[i].toString()
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}
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return text.joinToString(" ")
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}
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} |