Today I learned how to let vim reflow a paragraph according to the currently set text width. This makes plain text files much better readable. The vim command to use is gwip or gwap. The gw at the beginning, tells vim to reformat the lines the cursor is going over. The ip or ap tells vim that the cursor should select the inner paragraph or a paragraph it’s currently in. At the end of the day both commands gwap and gwip do the same thing.

I came across this, while editing a document with a text width of 80 and while I usually would use automatic line breaks with the text width and then manually reflow text, I decided to learn something new today and found this StackOverflow conversation, which was then actually explained by the vim manual using :help gw and :help ip.