Coninued working on page overflow

editor.c

@@ -6,6 +6,8 @@
 #include <stdbool.h>
 #include <unistd.h>
 
+int index_to_start = 0;
+
 typedef struct Buffer_struct Buffer;
 struct Buffer_struct {
 	char* text;
@@ -83,6 +85,13 @@ void buffer_left(Buffer* buffer) {
 }
 
 
+
+void scroll_page_down_handler(Buffer* buffer) {
+	while (*(buffer->start + index_to_start) != '\n') {
+		index_to_start++;
+	}
+}
+
 void page_down_handler(Buffer* buffer) {
 	buffer_right(buffer); /* I must advance the cursor at least 
 				once, so this hardcoded statement is fine. */
@@ -92,6 +101,10 @@ void page_down_handler(Buffer* buffer) {
 		buffer_right(buffer);
 	}
 
+	if ((getcury(stdscr) + 1) == getmaxy(stdscr)) {
+		scroll_page_down_handler(buffer);
+	}
+
 	/* You would think that I need to call 'buffer_right' once 
 	more, to advance the cursor onto the next line.	In fact, if 
 	you think about it, the place where the cursor (the rectangle) 
@@ -116,7 +129,6 @@ void sigint_handler(int dummy) {
 }
 
 int main(int argc, char** argv) {
-	int index_to_start = 0;
 
 	signal(SIGINT,sigint_handler);
 	Buffer* buffer = new_buffer(10);