->clear						Clear the editor
`text_buffer ->insert_file`	Insert the file contents
<-file						Assign the file variable
->caret: 0					Put the caret `home`
`text_buffer ->modified: @off`	Clear modified
`text_buffer ->reset_undo`	Clear undo info
->editable: Bool

If file->access succeeds, editor->editable: @on is invoked on the editor, otherwise editor->editable: @off.

See also

editor-file