Add --null option for parse command

src/main/java/me/clip/placeholderapi/PlaceholderAPI.java

@@ -22,6 +22,7 @@ package me.clip.placeholderapi;
 
 import com.google.common.collect.ImmutableSet;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import java.util.regex.Matcher;
@@ -185,7 +186,7 @@ public final class PlaceholderAPI {
         continue;
       }
 
-      String identifier = format.substring(0, index).toLowerCase();
+      String identifier = format.substring(0, index).toLowerCase(Locale.ROOT);
       String params = format.substring(index + 1);
       final PlaceholderExpansion expansion = PlaceholderAPIPlugin.getInstance()
           .getLocalExpansionManager().getExpansion(identifier);

src/main/java/me/clip/placeholderapi/commands/PlaceholderCommand.java

@@ -23,6 +23,7 @@ package me.clip.placeholderapi.commands;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
 import java.util.List;
+import java.util.Locale;
 import java.util.Set;
 import java.util.stream.Stream;
 import me.clip.placeholderapi.PlaceholderAPIPlugin;
@@ -61,7 +62,7 @@ public abstract class PlaceholderCommand {
     if (parameter == null) {
       possible.forEach(suggestions::add);
     } else {
-      possible.filter(suggestion -> suggestion.toLowerCase().startsWith(parameter.toLowerCase()))
+      possible.filter(suggestion -> suggestion.toLowerCase(Locale.ROOT).startsWith(parameter.toLowerCase(Locale.ROOT)))
           .forEach(suggestions::add);
     }
   }

src/main/java/me/clip/placeholderapi/commands/PlaceholderCommandRouter.java

@@ -27,11 +27,20 @@ import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.stream.Stream;
 import me.clip.placeholderapi.PlaceholderAPIPlugin;
 import me.clip.placeholderapi.commands.impl.cloud.CommandECloud;
-import me.clip.placeholderapi.commands.impl.local.*;
+import me.clip.placeholderapi.commands.impl.local.CommandDump;
+import me.clip.placeholderapi.commands.impl.local.CommandExpansionRegister;
+import me.clip.placeholderapi.commands.impl.local.CommandExpansionUnregister;
+import me.clip.placeholderapi.commands.impl.local.CommandHelp;
+import me.clip.placeholderapi.commands.impl.local.CommandInfo;
+import me.clip.placeholderapi.commands.impl.local.CommandList;
+import me.clip.placeholderapi.commands.impl.local.CommandParse;
+import me.clip.placeholderapi.commands.impl.local.CommandReload;
+import me.clip.placeholderapi.commands.impl.local.CommandVersion;
 import me.clip.placeholderapi.util.Msg;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
@@ -87,7 +96,7 @@ public final class PlaceholderCommandRouter implements CommandExecutor, TabCompl
       return true;
     }
 
-    final String search = args[0].toLowerCase();
+    final String search = args[0].toLowerCase(Locale.ROOT);
     final PlaceholderCommand target = commands.get(search);
 
     if (target == null) {
@@ -113,10 +122,10 @@ public final class PlaceholderCommandRouter implements CommandExecutor, TabCompl
     final List<String> suggestions = new ArrayList<>();
 
     if (args.length > 1) {
-      final PlaceholderCommand target = this.commands.get(args[0].toLowerCase());
+      final PlaceholderCommand target = this.commands.get(args[0].toLowerCase(Locale.ROOT));
 
       if (target != null) {
-        target.complete(plugin, sender, args[0].toLowerCase(),
+        target.complete(plugin, sender, args[0].toLowerCase(Locale.ROOT),
             Arrays.asList(Arrays.copyOfRange(args, 1, args.length)), suggestions);
       }
 

src/main/java/me/clip/placeholderapi/commands/impl/cloud/CommandECloud.java

@@ -100,7 +100,7 @@ public final class CommandECloud extends PlaceholderCommand {
       return;
     }
 
-    final String search = params.get(0).toLowerCase();
+    final String search = params.get(0).toLowerCase(Locale.ROOT);
     final PlaceholderCommand target = commands.get(search);
 
     if (target == null) {
@@ -136,7 +136,7 @@ public final class CommandECloud extends PlaceholderCommand {
       return; // send sub commands
     }
 
-    final String search = params.get(0).toLowerCase();
+    final String search = params.get(0).toLowerCase(Locale.ROOT);
     final PlaceholderCommand target = commands.get(search);
 
     if (target == null) {

src/main/java/me/clip/placeholderapi/commands/impl/cloud/CommandECloudExpansionList.java

@@ -87,7 +87,7 @@ public final class CommandECloudExpansionList extends PlaceholderCommand {
   @NotNull
   private static Collection<CloudExpansion> getExpansions(@NotNull final String target,
       @NotNull final PlaceholderAPIPlugin plugin) {
-    switch (target.toLowerCase()) {
+    switch (target.toLowerCase(Locale.ROOT)) {
       case "all":
         return plugin.getCloudExpansionManager().getCloudExpansions().values();
       case "installed":
@@ -112,7 +112,7 @@ public final class CommandECloudExpansionList extends PlaceholderCommand {
 
   public static void addExpansionTitle(@NotNull final StringBuilder builder,
       @NotNull final String target, final int page) {
-    switch (target.toLowerCase()) {
+    switch (target.toLowerCase(Locale.ROOT)) {
       case "all":
         builder.append("&bAll Expansions");
         break;

src/main/java/me/clip/placeholderapi/commands/impl/cloud/CommandECloudToggle.java

@@ -41,7 +41,7 @@ public final class CommandECloudToggle extends PlaceholderCommand {
     final boolean desiredState;
     final boolean currentState = plugin.getPlaceholderAPIConfig().isCloudEnabled();
 
-    switch (alias.toLowerCase()) {
+    switch (alias.toLowerCase(Locale.ROOT)) {
       case "enable":
         desiredState = true;
         break;

src/main/java/me/clip/placeholderapi/commands/impl/cloud/CommandECloudUpdate.java

@@ -128,7 +128,7 @@ public final class CommandECloudUpdate extends PlaceholderCommand {
     installed.removeIf(expansion -> !expansion.shouldUpdate());
 
     if (!installed.isEmpty() && (params.isEmpty() || "all"
-        .startsWith(params.get(0).toLowerCase()))) {
+        .startsWith(params.get(0).toLowerCase(Locale.ROOT)))) {
       suggestions.add("all");
     }
 

src/main/java/me/clip/placeholderapi/commands/impl/local/CommandDump.java

@@ -165,7 +165,7 @@ public final class CommandDump extends PlaceholderCommand {
 
     final String[] jars = plugin.getLocalExpansionManager()
         .getExpansionsFolder()
-        .list((dir, name) -> name.toLowerCase().endsWith(".jar"));
+        .list((dir, name) -> name.toLowerCase(Locale.ROOT).endsWith(".jar"));
 
     for (final String jar : jars) {
       builder.append("  ")

src/main/java/me/clip/placeholderapi/commands/impl/local/CommandParse.java

@@ -22,6 +22,7 @@ package me.clip.placeholderapi.commands.impl.local;
 
 import java.util.HashSet;
 import java.util.List;
+import java.util.Locale;
 import java.util.Set;
 import java.util.stream.Stream;
 import me.clip.placeholderapi.PlaceholderAPI;
@@ -49,7 +50,7 @@ public final class CommandParse extends PlaceholderCommand {
   public void evaluate(@NotNull final PlaceholderAPIPlugin plugin,
       @NotNull final CommandSender sender, @NotNull final String alias,
       @NotNull @Unmodifiable final List<String> params) {
-    switch (alias.toLowerCase()) {
+    switch (alias.toLowerCase(Locale.ROOT)) {
       case "parserel":
         evaluateParseRelation(sender, params);
         break;
@@ -69,7 +70,7 @@ public final class CommandParse extends PlaceholderCommand {
   public void complete(@NotNull final PlaceholderAPIPlugin plugin,
       @NotNull final CommandSender sender, @NotNull final String alias,
       @NotNull @Unmodifiable final List<String> params, @NotNull final List<String> suggestions) {
-    switch (alias.toLowerCase()) {
+    switch (alias.toLowerCase(Locale.ROOT)) {
       case "parserel":
         completeParseRelation(params, suggestions);
         break;
@@ -92,7 +93,7 @@ public final class CommandParse extends PlaceholderCommand {
       return;
     }
 
-    @NotNull final OfflinePlayer player;
+    OfflinePlayer player;
 
     if ("me".equalsIgnoreCase(params.get(0))) {
       if (!(sender instanceof Player)) {
@@ -101,6 +102,8 @@ public final class CommandParse extends PlaceholderCommand {
       }
 
       player = ((Player) sender);
+    } else if ("--null".equalsIgnoreCase(params.get(0))) {
+      player = null;
     } else {
       final OfflinePlayer target = resolvePlayer(params.get(0));
       if (target == null) {
@@ -161,10 +164,14 @@ public final class CommandParse extends PlaceholderCommand {
       @NotNull @Unmodifiable final List<String> params, @NotNull final List<String> suggestions) {
     if (params.size() <= 1) {
       if (sender instanceof Player && (params.isEmpty() || "me"
-          .startsWith(params.get(0).toLowerCase()))) {
+          .startsWith(params.get(0).toLowerCase(Locale.ROOT)))) {
         suggestions.add("me");
       }
-
+      
+      if ("--null".startsWith(params.get(0).toLowerCase(Locale.ROOT))) {
+        suggestions.add("--null");
+      }
+      
       final Stream<String> names = Bukkit.getOnlinePlayers().stream().map(Player::getName);
       suggestByParameter(names, suggestions, params.isEmpty() ? null : params.get(0));
 

src/main/java/me/clip/placeholderapi/expansion/manager/CloudExpansionManager.java

@@ -37,6 +37,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
@@ -88,7 +89,7 @@ public final class CloudExpansionManager {
 
   @NotNull
   private static String toIndexName(@NotNull final String name) {
-    return name.toLowerCase().replace(' ', '_');
+    return name.toLowerCase(Locale.ROOT).replace(' ', '_');
   }
 
   @NotNull

src/main/java/me/clip/placeholderapi/expansion/manager/LocalExpansionManager.java

@@ -125,7 +125,7 @@ public final class LocalExpansionManager implements Listener {
   public PlaceholderExpansion getExpansion(@NotNull final String identifier) {
     expansionsLock.lock();
     try {
-      return expansions.get(identifier.toLowerCase());
+      return expansions.get(identifier.toLowerCase(Locale.ROOT));
     } finally {
       expansionsLock.unlock();
     }
@@ -193,7 +193,7 @@ public final class LocalExpansionManager implements Listener {
 
   @ApiStatus.Internal
   public boolean register(@NotNull final PlaceholderExpansion expansion) {
-    final String identifier = expansion.getIdentifier().toLowerCase();
+    final String identifier = expansion.getIdentifier().toLowerCase(Locale.ROOT);
 
     if (!expansion.canRegister()) {
       return false;

src/main/java/me/clip/placeholderapi/replacer/CharsReplacer.java

@@ -20,6 +20,7 @@
 
 package me.clip.placeholderapi.replacer;
 
+import java.util.Locale;
 import java.util.function.Function;
 import me.clip.placeholderapi.expansion.PlaceholderExpansion;
 import org.bukkit.ChatColor;
@@ -49,49 +50,6 @@ public final class CharsReplacer implements Replacer {
 
     for (int i = 0; i < chars.length; i++) {
       final char l = chars[i];
-      
-      if (l == '&' && ++i < chars.length) {
-        final char c = Character.toLowerCase(chars[i]);
-
-        if (c != '0' && c != '1' && c != '2' && c != '3' && c != '4' && c != '5' && c != '6'
-            && c != '7' && c != '8' && c != '9' && c != 'a' && c != 'b' && c != 'c' && c != 'd'
-            && c != 'e' && c != 'f' && c != 'k' && c != 'l' && c != 'm' && c != 'n' && c != 'o' && c != 'r'
-            && c != 'x') {
-          builder.append(l).append(chars[i]);
-        } else {
-          builder.append(ChatColor.COLOR_CHAR);
-
-          if (c != 'x') {
-            builder.append(chars[i]);
-            continue;
-          }
-
-          if ((i > 1 && chars[i - 2] == '\\') /*allow escaping &x*/) {
-            builder.setLength(builder.length() - 2);
-            builder.append('&').append(chars[i]);
-            continue;
-          }
-
-          builder.append(c);
-
-          int j = 0;
-          while (++j <= 6) {
-            if (i + j >= chars.length) {
-              break;
-            }
-
-            final char x = chars[i + j];
-            builder.append(ChatColor.COLOR_CHAR).append(x);
-          }
-
-          if (j == 7) {
-            i += 6;
-          } else {
-            builder.setLength(builder.length() - (j * 2)); // undo &x parsing
-          }
-        }
-        continue;
-      }
 
       if (l != closure.head || i + 1 >= chars.length) {
         builder.append(l);
@@ -99,7 +57,7 @@ public final class CharsReplacer implements Replacer {
       }
 
       boolean identified = false;
-      boolean oopsitsbad = true;
+      boolean invalid = true;
       boolean hadSpace = false;
 
       while (++i < chars.length) {
@@ -110,7 +68,7 @@ public final class CharsReplacer implements Replacer {
           break;
         }
         if (p == closure.tail) {
-          oopsitsbad = false;
+          invalid = false;
           break;
         }
 
@@ -127,13 +85,13 @@ public final class CharsReplacer implements Replacer {
       }
 
       final String identifierString = identifier.toString();
-      final String lowercaseIdentifierString = identifierString.toLowerCase();
+      final String lowercaseIdentifierString = identifierString.toLowerCase(Locale.ROOT);
       final String parametersString = parameters.toString();
 
       identifier.setLength(0);
       parameters.setLength(0);
 
-      if (oopsitsbad) {
+      if (invalid) {
         builder.append(closure.head).append(identifierString);
 
         if (identified) {