Cleanup

src/vase/buffer/original.cc

@@ -0,0 +1,24 @@
+#include "vase/buffer/original.h"
+
+const char *OriginalBuffer::read(uint32_t pos, uint32_t *out_len) {
+  if (pos >= length)
+    return nullptr;
+  *out_len = length - pos;
+  return buf + pos;
+}
+
+uint32_t OriginalBuffer::count_lines(uint32_t pos, uint32_t length) {
+  auto start = std::lower_bound(
+    newlines.begin(),
+    newlines.end(),
+    pos
+  );
+
+  auto end = std::lower_bound(
+    start,
+    newlines.end(),
+    pos + length
+  );
+
+  return (uint32_t)(end - start);
+}