/**
* Register a command flag for this command.
*
* <p>A command flag represents a boolean that can be added anywhere in the command. The specified
* name must be used by the user to specify the flag.
*
* <p>For example if the name is 'f' the user can specify '-f' anywhere in the command.
*
* <p>You don't have to prefix the name with a '-' If you do it will be removed so if you want to
* have the user put '--f' you have to set the name as '--f'
*
* @param name The flag name/key used to identify the flag. This name must be used with the {@link
* CmdData} result to check if the flag was specified. This name is also what the user needs
* to use to specify the flag. (-{name}) The name '?' is reserved!
* @return The added {@link Flag}
* @throws IllegalArgumentException if a flag with the specified name is already registered for
* this command.
*/
public Flag addFlag(String name) {
if (name.startsWith("-")) {
name = name.substring(1);
}
Flag flag = new Flag(name);
if (getAllFlags().containsKey(name.toLowerCase())) {
throw new IllegalArgumentException(
"The command already has a flag with the name '-" + name + "'!");
}
flags.put(name.toLowerCase(), flag);
return flag;
}
/**
* Register a command modifier for this command.
*
* <p>A command modifier is an optional argument that can be added anywhere in the command. The
* specified name must be used by the user to specify the modifier.
*
* <p>For example if you register a modifier with the name player and the option is a {@link
* PlayerO} The user would put player:{player} anywhere in the command to set the modifer value.
*
* @param name The modifier name/key used to identify the argument. This name must be used with
* the {@link CmdData} result to get the modifier value. This name is also what the user needs
* to use to specify the modifier. ({name}:{value})
* @param option The {@link SingleOption} used for parsing the modifier. This option determines
* the modifier value and everything else. For example if it's a {@link PlayerO} the modifier
* value must be a player and the result value would be a player. This option can't be a sub
* command option!
* @return The added {@link Modifier}
* @throws IllegalArgumentException if a modifier with the specified name is already registered
* for this command or if the modifier has a sub command option.
*/
public Modifier addModifier(String name, SingleOption option) {
Modifier modifier = new Modifier(name, option);
if (option instanceof SubCmdO) {
throw new IllegalArgumentException(
"Modifiers can not be a sub command option! [modifier=" + name + "]");
}
if (getAllModifiers().containsKey(name.toLowerCase())) {
throw new IllegalArgumentException(
"The command already has a modifier with the name '" + name + "'!");
}
modifiers.put(name.toLowerCase(), modifier);
return modifier;
}