Separate gap edition from point edition

1 files changed, 13 insertions, 0 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--;
+	}
+}