In a text document, while editing, I often need to increment/ decrement calendar data. So, Friday will need to become Monday, December will need to become March, etc.
Or 28 Apr after adding 5 will become 03 May, and even 31 Dec 2017 after adding 15 will become 15 Jan 2018.
Is there a way to achieve this by placing cursor on the desired word/ number and hitting some keys so that it increments or decrements?
So, while on Friday, I hit something to say 'Add 3' and it becomes Monday, etc. While on 28 in 28 Apr, I hit something to say 'Add 5' and it becomes 03 May. But while on Apr in 28 Apr, I hit something to say 'Subtract 2', it becomes 28 Feb, etc.
Just so that you get an idea, vim has a speeddating plugin that does exactly what I am aiming at.