Zack Buhman 6a5ebab01f editor: add shadow-lines and region-deletes
This implements the "copy" portion of copy-and-paste and the "delete"
portion of cut-and-paste.

'backspace' was also partially refactored to share code with the new
'selection_delete'.

I am excited in how expressiveness/readability improved in 'backspace'
after selection_delete was implemented.
2023-06-10 02:57:54 +00:00
..