MOD:支持加载其他目录索引

src/main/java/com/leosam/tvbox/mv/utils/StringUtils.java

@@ -1,11 +1,16 @@
 package com.leosam.tvbox.mv.utils;
 
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * @author admin
  * @since 2023/6/12 21:32
  */
 public class StringUtils {
 
+    public static final String EMPTY = "";
+
     public static boolean isNotEmpty(final CharSequence cs) {
         return !isEmpty(cs);
     }
@@ -13,4 +18,30 @@ public class StringUtils {
     public static boolean isEmpty(final CharSequence cs) {
         return cs == null || cs.length() == 0;
     }
+
+    public static String defaultIfEmpty(final String str, String defaultStr) {
+        return isNotEmpty(str) ? str : defaultStr;
+    }
+
+    public static String trimToEmpty(final String str) {
+        return str == null ? EMPTY : str.trim();
+    }
+
+    public static List<String> reverseSplit(String s, String delimiter, int limit) {
+        List<String> result = new ArrayList<>();
+        if (s == null || delimiter == null || limit <= 0) {
+            return result;
+        }
+
+        int lastIndex = s.lastIndexOf(delimiter);
+        while (limit > 1 && lastIndex != -1) {
+            result.add(0, s.substring(lastIndex + delimiter.length()));
+            s = s.substring(0, lastIndex);
+            lastIndex = s.lastIndexOf(delimiter);
+            limit--;
+        }
+        result.add(0, s);
+        return result;
+    }
+
 }