Avoid the spurious newline insertion when replacing at end of buffer

Add a Buffer::replace method to handle the replacements properly
Fixes #633

1 files changed, 1 insertions, 0 deletions

diff --git a/src/buffer.hh b/src/buffer.hh
index a7ab127c..6b99ab1d 100644
--- a/src/buffer.hh
+++ b/src/buffer.hh
@@ -123,6 +123,7 @@ public:
 
     BufferIterator insert(const BufferIterator& pos, StringView content);
     BufferIterator erase(BufferIterator begin, BufferIterator end);
+    BufferIterator replace(const BufferIterator& begin, const BufferIterator& end, StringView content);
 
     size_t         timestamp() const;
     timespec       fs_timestamp() const;