--- a/src/luan/modules/StringLuan.java	Fri Jul 28 11:53:03 2023 +0300
+++ b/src/luan/modules/StringLuan.java	Thu Aug 10 16:24:20 2023 -0600
@@ -148,12 +148,32 @@
 		Utils.checkNotNull(s2,2);
 		return s.endsWith(s2);
 	}
-
+/*
 	public static String replace(String s,String target,String replacement) throws LuanException {
 		Utils.checkNotNull(s);
 		Utils.checkNotNull(target,2);
 		Utils.checkNotNull(replacement,3);
 		return s.replace(target,replacement);
 	}
+*/
+	public static String replace(String s,String target,String replacement) throws LuanException {
+		Utils.checkNotNull(s);
+		Utils.checkNotNull(target,2);
+		Utils.checkNotNull(replacement,3);
+		int i = s.indexOf(target);
+		if( i == -1 )
+			return s;
+		int starting = 0;
+		int n = target.length();
+		StringBuilder sb = new StringBuilder();
+		do {
+			sb.append(s,starting,i);
+			sb.append(replacement);
+			starting = i + n;
+			i = s.indexOf(target,starting);
+		} while( i != -1 );
+		sb.append(s,starting,s.length());
+		return sb.toString();
+	}
 
 }