Merge pull request #128 from xXAndrew28Xx/fix43

Fix #43, add alphabetically sorting of strings

src/main/java/ch/njol/skript/expressions/ExprAlphabetList.java

@@ -0,0 +1,93 @@
+/*
+ *   This file is part of Skript.
+ *
+ *  Skript is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Skript is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Skript.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ * 
+ * Copyright 2011-2016 Peter Güttinger and contributors
+ * 
+ */
+
+package ch.njol.skript.expressions;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Comparator;
+
+import org.bukkit.event.Event;
+import org.eclipse.jdt.annotation.Nullable;
+
+import ch.njol.skript.Skript;
+import ch.njol.skript.doc.Description;
+import ch.njol.skript.doc.Events;
+import ch.njol.skript.doc.Examples;
+import ch.njol.skript.doc.Name;
+import ch.njol.skript.doc.Since;
+import ch.njol.skript.lang.Expression;
+import ch.njol.skript.lang.ExpressionType;
+import ch.njol.skript.lang.SkriptParser.ParseResult;
+import ch.njol.skript.lang.util.SimpleExpression;
+import ch.njol.util.Kleenean;
+
+/**
+ * Sorts a list of texts/stirngs alphabetically
+ * @author xXAndrew28Xx
+ */
+@Name("Alphabetical Sort")
+@Description("Sort a list alphabetically")
+@Examples({"set {_list::*} to alphabetically sorted {_list::*"})
+@Since("dev-18")
+public class ExprAlphabetList extends SimpleExpression<String>{
+	static{
+		Skript.registerExpression(ExprAlphabetList.class, String.class, ExpressionType.COMBINED, "alphabetically sorted %strings%");
+	}
+	private Expression<String> exprTexts;
+	@Override
+	public boolean isSingle() {
+		return false;
+	}
+
+	@Override
+	public Class<? extends String> getReturnType() {
+		return String.class;
+	}
+
+	@SuppressWarnings("unchecked")
+	@Override
+	public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed, ParseResult parseResult) {
+		exprTexts = (Expression<String>) exprs[0];
+		return true;
+	}
+
+	@Override
+	public String toString(@Nullable Event e, boolean debug) {
+		return "alphabetically sorted %strings%";
+	}
+
+	@Override
+	@Nullable
+	protected String[] get(Event e) {
+		String[] texts = exprTexts.getArray(e);
+		ArrayList<String> alTexts = new ArrayList<String>(Arrays.asList(texts));
+		Collections.sort(alTexts, new Comparator<String>(){
+
+			@Override
+			public int compare(String o1, String o2) {
+				return o1.compareTo(o2);
+			}});
+		return alTexts.toArray(new String[alTexts.size()]);
+	}
+
+}