Add basic editing capabilities

Cursor is now visible and can insert, delete and move across the buffer.

1 files changed, 4 insertions, 0 deletions

diff --git a/point.c b/point.c
index 23ce492..8ef0c41 100644
--- a/point.c
+++ b/point.c
@@ -22,6 +22,10 @@ uint8_t element(struct point *point) {
 	}
 }
 
+bool same_location(struct point *a, struct point *b) {
+	return a->page == b->page && a->index == b->index;
+}
+
 bool at_eof(struct point *point) {
 	return point->index == point->page->element_count && !point->page->next;
 }