regex to prevent use of control, zero width, etc. characters

Author: zefir-git

src/main/java/pro/cloudnode/smp/bankaccounts/Command.java

@@ -13,6 +13,8 @@
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
 public abstract class Command implements CommandExecutor, TabCompleter {
@@ -91,10 +93,8 @@ public final boolean onCommand(final @NotNull CommandSender sender, final @NotNu
                 .filter(codePoint -> codePoint > 0xFFFF)
                 .mapToObj(codePoint -> new String(Character.toChars(codePoint)))
                 .collect(Collectors.toSet());
-        if (input.contains("<"))
-            chars.add("<");
-        if (input.contains(">"))
-            chars.add(">");
+        final @NotNull Matcher matcher = Pattern.compile("[<>\\x00-\\x08\\x0B-\\x1F\\x7F-\\x9F\\u2400-\\u2421\\u200B-\\u200D\\uFEFF\\uD800-\\uDB7F\\uDFFF]").matcher(input);
+        while (matcher.find()) chars.add(matcher.group());
         return chars;
     }
 }