Add ArgParser and ArgFlagParser

src/main/java/br/com/finalcraft/evernifecore/commands/finalcmd/annotations/Arg.java

@@ -1,6 +1,7 @@
 package br.com.finalcraft.evernifecore.commands.finalcmd.annotations;
 
 import br.com.finalcraft.evernifecore.commands.finalcmd.argument.ArgParser;
+import br.com.finalcraft.evernifecore.commands.finalcmd.argument.FlagParser;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
@@ -17,4 +18,16 @@
 
     Class<? extends ArgParser> parser() default ArgParser.class;
 
+    @Retention(RetentionPolicy.RUNTIME)
+    @Target({ElementType.PARAMETER})
+    public static @interface Flag {
+
+        String name();
+
+        String context() default "";
+
+        Class<? extends FlagParser> parser() default FlagParser.class;
+
+    }
+
 }

src/main/java/br/com/finalcraft/evernifecore/commands/finalcmd/argument/FlagParser.java

@@ -0,0 +1,30 @@
+package br.com.finalcraft.evernifecore.commands.finalcmd.argument;
+
+import br.com.finalcraft.evernifecore.argumento.Argumento;
+import br.com.finalcraft.evernifecore.commands.finalcmd.argument.exception.ArgParseException;
+import br.com.finalcraft.evernifecore.commands.finalcmd.tab.ITabParser;
+import com.google.common.collect.ImmutableList;
+import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+
+public abstract class FlagParser<T extends Object> implements ITabParser {
+
+    protected final ArgInfo argInfo;
+
+    public FlagParser(ArgInfo argInfo) {
+        this.argInfo = argInfo;
+    }
+
+    public ArgInfo getArgInfo() {
+        return argInfo;
+    }
+
+    public abstract T parserArgument(@NotNull CommandSender sender, @NotNull Argumento argumento) throws ArgParseException;
+
+    @Override
+    public @NotNull List<String> tabComplete(Context context) {
+        return ImmutableList.of();
+    }
+}