1 files changed, 25 insertions, 0 deletions
diff --git a/buffer.cpp b/buffer.cpp
new file mode 100644
index 0000000..027ffca
--- /dev/null
+++ b/buffer.cpp
@@ -0,0 +1,25 @@
+struct Buffer {
+	const char *name;
+	Point start;
+	Point cursor;
+
+	Buffer(const char *name) : name(name), start(), cursor(start) {}
+
+	void prev_line(int window_width) {
+		cursor--;
+		cursor--;
+		cursor.rseek('\n', window_width - 2);
+		if (cursor.element() == '\n') {
+			cursor++;
+		}
+	}
+
+	void next_line(int window_width) {
+		cursor.seek('\n', window_width);
+		if (cursor.element() == '\n') {
+			cursor++;
+		}
+	}
+
+};
+