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惯用Kotlin正则表达式_Kotlin - Fatal编程技术网
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惯用Kotlin正则表达式

kotlin

惯用Kotlin正则表达式,kotlin,Kotlin,有没有一种更好看的Kotlin正则表达式与解构匹配 val text = """ a 10 rows; 120 columns b """ val columns = "(\\d+) rows; (\\d+) columns".toRegex(RegexOption.MULTILINE).find(text)?.destructured?.let { (height, width) -> width.toIntOrNul

有没有一种更好看的Kotlin正则表达式与解构匹配

val text = """
        a
        10 rows; 120 columns
        b
        """

val columns = "(\\d+) rows; (\\d+) columns".toRegex(RegexOption.MULTILINE).find(text)?.destructured?.let { (height, width) ->
  width.toIntOrNull()
} ?: 90
我最好的选择是不使用destructured，而是使用

val matchResult = "(\\d+) rows; (\\d+) columns".toRegex(RegexOption.MULTILINE).find(output)
return matchResult?.groupValues?.get(2)?.toIntOrNull() ?: 80