Separate gap edition from point edition

2 files changed, 16 insertions, 8 deletions

diff --git a/page.c b/page.c
index 9a712ed..856cdfc 100644
--- a/page.c
+++ b/page.c
@@ -65,3 +65,16 @@ void move_gap_backward(struct page *page) {
 	page->gap_start--;
 	page->elements[page->gap_end] = page->elements[page->gap_start];
 }
+
+void insert_at_gap(struct page *page, uint8_t c) {
+	page->elements[page->gap_start] = c;
+	page->gap_start++;
+	page->element_count++;
+}
+
+void delete_at_gap(struct page *page) {
+	if (page->gap_start) {
+		page->gap_start--;
+		page->element_count--;
+	}
+}
diff --git a/point.c b/point.c
index 8413ad8..7250f2d 100644
--- a/point.c
+++ b/point.c
@@ -60,9 +60,7 @@ void insert_at_point(struct point *point, uint8_t c) {
 		}
 	}
 	align_gap(point);
-	point->page->elements[point->page->gap_start] = c;
-	point->page->gap_start++;
-	point->page->element_count++;
+	insert_at_gap(point->page, c);
 	move_point_forward(point);
 }
 
@@ -79,9 +77,6 @@ void delete_at_point(struct point *point) {
 		}
 	}
 	align_gap(point);
-	if (point->page->gap_start != 0) {
-		point->page->gap_start--;
-		point->page->element_count--;
-		move_point_backward(point);
-	}
+	delete_at_gap(point->page);
+	move_point_backward(point);
 }