missed the empty graphics mode sequence

Cargo.lock

@@ -2,7 +2,7 @@
 # It is not intended for manual editing.
 [[package]]
 name = "ansi-parser"
-version = "0.6.2"
+version = "0.6.3"
 dependencies = [
  "nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

src/parsers.rs

@@ -117,12 +117,22 @@ named!(
     )
 );
 
+named!(
+    graphics_mode4<&str, AnsiSequence>,
+    do_parse!(
+        tag!("[m") >>
+        (AnsiSequence::SetGraphicsMode(vec![]))
+    )
+);
+
 named!(
     graphics_mode<&str, AnsiSequence>,
     alt!(
           graphics_mode1
         | graphics_mode2
-        | graphics_mode3)
+        | graphics_mode3
+        | graphics_mode4
+    )
 );
 
 named!(