initial commit

java/src/game/command/EnumParser.java

@@ -0,0 +1,44 @@
+package game.command;
+
+import java.util.Map;
+
+import game.collect.Maps;
+
+public class EnumParser extends DefaultingParser {
+	private final Map<String, Object> lookup = Maps.newHashMap();
+	private final Object[] selections;
+	
+	private static <T> String joinArgs(T[] iter) {
+		StringBuilder sb = new StringBuilder("'");
+		for(T obj : iter) {
+			if(sb.length() > 1)
+				sb.append("', '");
+			sb.append(String.valueOf(obj));
+		}
+		return sb.append("'").toString();
+	}
+	
+	public EnumParser(String name, Object def, Object ... selections) {
+		super(name, def, selections);
+		this.selections = selections;
+		for(Object o : selections) {
+			this.lookup.put(o.toString().toLowerCase(), o);
+		}
+	}
+	
+	public Object parse(ScriptEnvironment env, String input) {
+		Object value = this.lookup.get(input.toLowerCase());
+		if(value != null)
+			return value;
+		int id = -1;
+		try {
+			id = Integer.parseInt(input);
+		}
+		catch(NumberFormatException e) {
+		}
+		if(id < 0 || id >= this.selections.length)
+			throw new ScriptException("Ungültige Auswahl '%s', muss eine von diesen Optionen sein: %s", input, 
+					joinArgs(this.selections));
+		return this.selections[id];
+	}
+}