add Local Source

server/src/main/kotlin/eu/kanade/tachiyomi/util/lang/StringExtensions.kt

@@ -0,0 +1,58 @@
+package eu.kanade.tachiyomi.util.lang
+
+import net.greypanther.natsort.CaseInsensitiveSimpleNaturalComparator
+import kotlin.math.floor
+
+/**
+ * Replaces the given string to have at most [count] characters using [replacement] at its end.
+ * If [replacement] is longer than [count] an exception will be thrown when `length > count`.
+ */
+fun String.chop(count: Int, replacement: String = "…"): String {
+    return if (length > count) {
+        take(count - replacement.length) + replacement
+    } else {
+        this
+    }
+}
+
+/**
+ * Replaces the given string to have at most [count] characters using [replacement] near the center.
+ * If [replacement] is longer than [count] an exception will be thrown when `length > count`.
+ */
+fun String.truncateCenter(count: Int, replacement: String = "..."): String {
+    if (length <= count) {
+        return this
+    }
+
+    val pieceLength: Int = floor((count - replacement.length).div(2.0)).toInt()
+
+    return "${take(pieceLength)}$replacement${takeLast(pieceLength)}"
+}
+
+/**
+ * Case-insensitive natural comparator for strings.
+ */
+fun String.compareToCaseInsensitiveNaturalOrder(other: String): Int {
+    val comparator = CaseInsensitiveSimpleNaturalComparator.getInstance<String>()
+    return comparator.compare(this, other)
+}
+
+/**
+ * Returns the size of the string as the number of bytes.
+ */
+fun String.byteSize(): Int {
+    return toByteArray(Charsets.UTF_8).size
+}
+
+/**
+ * Returns a string containing the first [n] bytes from this string, or the entire string if this
+ * string is shorter.
+ */
+fun String.takeBytes(n: Int): String {
+    val bytes = toByteArray(Charsets.UTF_8)
+    return if (bytes.size <= n) {
+        this
+    } else {
+        bytes.decodeToString(endIndex = n).replace("\uFFFD", "")
+    }
+}