tree 8d9bffa71c37610d7f9bf40b6be6caf71a61dc71
parent 892762d99c0a8e696065fa631bdecce52f6b2d53
author Benno Schulenberg <bensberg@justemail.net> 1484241950 +0100
committer Benno Schulenberg <bensberg@justemail.net> 1484245941 +0100

tweaks: rename some variables, to better distinguish rows from lines

And columns from indexes -- columns are places on the screen, while
indexes point to characters in a line in the current buffer.