Block function

[wengkiat]

"I should also be able to view a list of dates and times that I have blocked, in case I forget."

Implementation

The block function uses an empty Task with Detail and no assigned Priority. These pseudotasks do not show up like normal tasks when listing or finding

• ModifiedTask to include an extra parameter Blocking. These are by default false and are only toggled when the block command is called. No change to existing Task constructors.
• Implement block command to toggle Task > Blocking. The command should take format

  block 10/20/2016 2pm to 10/21/2016 4pm block tmr to 10/20/2016 block noon to midnight

• Block by default creates block time slot of one hour if only start time is entered, etc block 'meeting' 1300. The blocked time slot will be from 1300 to 1400
• Before adding or editing tasks, the CheckBlocked class will run to determine if the input start/end date/time range conflicts with any blocked pseudotask. If so, an error message is thrown to the user.
• Entering list block or lb would show a list of the pseudotasks.
• Test cases created and passed for all the above implemented functions.