Minor improvements

Makes /editsign convert formatting codes for non-placeholder text
Makes /editsign able to clear a line on a sign

src/main/java/net/knarcraft/placeholdersigns/PlaceholderSigns.java

@@ -8,7 +8,7 @@ import net.knarcraft.placeholdersigns.handler.PlaceholderSignHandler;
 import net.knarcraft.placeholdersigns.listener.SignBreakListener;
 import net.knarcraft.placeholdersigns.listener.SignClickListener;
 import net.knarcraft.placeholdersigns.listener.SignTextListener;
-import net.md_5.bungee.api.ChatColor;
+import net.knarcraft.placeholdersigns.util.ColorHelper;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.block.Sign;
@@ -22,8 +22,6 @@ import org.jetbrains.annotations.Nullable;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.logging.Level;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
 /**
  * This plugin's main class
@@ -146,7 +144,7 @@ public final class PlaceholderSigns extends JavaPlugin {
                 }
 
                 // Convert color codes
-                newText = translateAllColorCodes(newText);
+                newText = ColorHelper.translateAllColorCodes(newText);
 
                 // Only change the line if the text has changed
                 if (!newText.equals(oldText)) {
@@ -162,20 +160,5 @@ public final class PlaceholderSigns extends JavaPlugin {
         }
     }
 
-    /**
-     * Translates all found color codes to formatting in a string
-     *
-     * @param message <p>The string to search for color codes</p>
-     * @return <p>The message with color codes translated</p>
-     */
-    private static String translateAllColorCodes(String message) {
-        message = ChatColor.translateAlternateColorCodes('&', message);
-        Pattern pattern = Pattern.compile("&?(#[a-fA-F0-9]{6})");
-        Matcher matcher = pattern.matcher(message);
-        while (matcher.find()) {
-            message = message.replace(matcher.group(), "" + ChatColor.of(matcher.group(1)));
-        }
-        return message;
-    }
 
 }

src/main/java/net/knarcraft/placeholdersigns/command/EditSignCommand.java

@@ -29,7 +29,7 @@ public class EditSignCommand implements TabExecutor {
     @Override
     public boolean onCommand(@NotNull CommandSender commandSender, @NotNull Command command, @NotNull String s,
                              @NotNull String[] args) {
-        if (args.length < 2 || !(commandSender instanceof Player player)) {
+        if (args.length < 1 || !(commandSender instanceof Player player)) {
             return false;
         }
 
@@ -44,8 +44,16 @@ public class EditSignCommand implements TabExecutor {
             return false;
         }
 
+        // Make sure no argument is treated as an empty string
+        String start;
+        if (args.length > 1) {
+            start = args[1];
+        } else {
+            start = "";
+        }
+
         // Get all arguments as a space-separated string
-        StringBuilder builder = new StringBuilder(args[1]);
+        StringBuilder builder = new StringBuilder(start);
         for (int i = 2; i < args.length; i++) {
             builder.append(" ").append(args[i]);
         }

src/main/java/net/knarcraft/placeholdersigns/listener/SignClickListener.java

@@ -2,6 +2,7 @@ package net.knarcraft.placeholdersigns.listener;
 
 import net.knarcraft.placeholdersigns.PlaceholderSigns;
 import net.knarcraft.placeholdersigns.container.LineChangeRequest;
+import net.knarcraft.placeholdersigns.util.ColorHelper;
 import org.bukkit.Bukkit;
 import org.bukkit.block.Sign;
 import org.bukkit.event.EventHandler;
@@ -43,7 +44,7 @@ public class SignClickListener implements Listener {
         // Update the sign with the new text
         String[] finalLines = changeEvent.getLines();
         for (int i = 0; i < finalLines.length; i++) {
-            sign.setLine(i, finalLines[i]);
+            sign.setLine(i, ColorHelper.translateAllColorCodes(finalLines[i]));
         }
         sign.update();
 

src/main/java/net/knarcraft/placeholdersigns/util/ColorHelper.java

@@ -0,0 +1,33 @@
+package net.knarcraft.placeholdersigns.util;
+
+import net.md_5.bungee.api.ChatColor;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * A helper class for dealing with colors and formatting codes
+ */
+public final class ColorHelper {
+
+    private ColorHelper() {
+
+    }
+
+    /**
+     * Translates all found color codes to formatting in a string
+     *
+     * @param message <p>The string to search for color codes</p>
+     * @return <p>The message with color codes translated</p>
+     */
+    public static String translateAllColorCodes(String message) {
+        message = ChatColor.translateAlternateColorCodes('&', message);
+        Pattern pattern = Pattern.compile("&?(#[a-fA-F0-9]{6})");
+        Matcher matcher = pattern.matcher(message);
+        while (matcher.find()) {
+            message = message.replace(matcher.group(), "" + ChatColor.of(matcher.group(1)));
+        }
+        return message;
+    }
+
+}

src/main/resources/plugin.yml

@@ -7,9 +7,9 @@ depend:
 
 commands:
   editSign:
-    usage: /<command> <line> <text> [text] ...
+    usage: /<command> <line> [text] [text] ...
     permission: placeholdersigns.edit
-    description: Changes the line of a sign without a text limit
+    description: Changes the line of a sign, without a text limit, and with color conversion
 
 permissions:
   placeholdersigns.*: