1 files changed, 11 insertions, 1 deletions
diff --git a/src/linebuf.rs b/src/linebuf.rs
index 91d0306..15a8182 100644
--- a/src/linebuf.rs
+++ b/src/linebuf.rs
@@ -1,5 +1,5 @@
-use std::io::Write;
 use crate::cursor::*;
+use std::io::Write;
 
 pub struct LineBuf {
     pre: Vec<u8>,
@@ -45,6 +45,16 @@ impl LineBuf {
         self.pre.push(chr);
     }
 
+    pub fn is_empty(&self) -> bool {
+        self.pre.is_empty() && self.post.is_empty()
+    }
+
+    /// sets content all to the left
+    pub fn set_content(&mut self, buf: Vec<u8>) {
+        self.pre = buf;
+        self.post = Vec::new();
+    }
+
     /// returns the whole contents of the buffer, and empties it in the process
     pub fn dump(&mut self) -> Vec<u8> {
         while self.right() {}