J.A.R.V.I.S.

A personal chatbot assistant to help you with your daily tasks.

Types of Tasks

Jarvis supports 3 types of tasks: Todo, Deadline and Event.

1. Todo: Tasks that need to be done but have no deadline or time limit.
2. Deadline: Tasks that need to be done before a specific date and time.
3. Event: Tasks that start and end at a specific date and time. It spans over a period of time.

Method of interaction

You can interact with Jarvis with a pre-defined set of commands following the format command (optional arguments). The list of all the commands that Jarvis supports is listed below.

• Add a task to the task list: todo, deadline, event
• Delete a task from the task list: delete
• Mark a task as done/undone: mark, unmark
• List all the tasks in the task list: list
• Find all tasks in the task list with a keyword: find
• Tag/untag a task: tag, untag
• Exit the program: exit

More details on the usage of each command can be found in the Features section.

Features

Note:

1. Words in <> represent compulsory arguments.
2. Words in [] are optional arguments. They can be omitted.
3. Arguments with ... after them can be used multiple times, including zero times.
4. Commands like mark, delete, etc. require the index of the task in the task list as arguments. The index starts from 1.

Add a Task

• Todo task: todo <task description>. The task description cannot be empty.
• Deadline task: deadline <task description> /by <datetime>. The datetime must be in the format yyyy-MM-dd HH:mm.
  For example, deadline return book /by 2020-09-18 23:59.
• Event task: event <task description> /from <start datetime> /to <end datetime>. The datetime must be in the same format as the deadline command.
  For example, event project meeting /from 2020-09-18 14:00 /to 2020-09-18 16:00.

Mark a Task as Done/Undone

• Mark a task as done: mark <task index>.
  For example, mark 1 marks the first task in the task list as done.
• Mark a task as undone: unmark <task index>.
  For example, unmark 3 marks the third task in the task list as done.

If you try to mark or unmark a task index that is not in the task list, an error message will be shown to you.

Delete a Task

• Delete a task: delete <task index>.
  For example, delete 2 deletes the second task in the task list. The task indices of the tasks after the deleted task will be updated accordingly.

Find Tasks

• Find all tasks containing the keyword: find <keyword>. The keyword cannot be empty, and the matching tasks will be listed in the order they were added to the task list.

List All Tasks

• List all tasks in the task list: list. Do not provide any arguments for this command.

Tagging

• Tag a task: tag <task index> <tag name 1> [tag name 2].... The tag name cannot be empty. Multiple tags can be added to a task.
  For example, tag 1 urgent school cs2103t tags the first task in the task list with three tags: urgent, school and cs2103t.
• Untag a task: untag <task index> <tag name 1> [tag name 2].... The same restrictions apply as the tag command.
  Note that when the task is not tagged by some tag names provided, the command will just ignore those tag names.
  For example, untag 1 urgent drama cs2103t removes the tags urgent and cs2103t from the first task. The drama tag is simply ignored.

Exit

• Exit Jarvis: exit. Do not provide any arguments for this command.