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package moe.nea.firmament.util
object StringUtil {
fun String.words(): Sequence<String> {
return splitToSequence(" ") // TODO: better boundaries
}
fun String.camelWords(): Sequence<String> {
return splitToSequence(camelWordStart)
}
private val camelWordStart = Regex("((?<=[a-z])(?=[A-Z]))| ")
fun parseIntWithComma(string: String): Int {
return string.replace(",", "").toInt()
}
fun String.title() = replaceFirstChar { it.titlecase() }
fun Iterable<String>.unwords() = joinToString(" ")
fun nextLexicographicStringOfSameLength(string: String): String {
val next = StringBuilder(string)
while (next.lastOrNull() == Character.MAX_VALUE) next.setLength(next.length - 1)
if (next.isEmpty()) return "" // There is no upper bound. Fall back to the empty string
val lastIdx = next.indices.last
next[lastIdx] = (next[lastIdx] + 1)
return next.toString()
}
}
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