basic syntax highlighting

1 files changed, 7 insertions, 3 deletions

diff --git a/src/cursor.rs b/src/cursor.rs
index fbaacbb..1ec23d5 100644
--- a/src/cursor.rs
+++ b/src/cursor.rs
@@ -8,9 +8,9 @@ pub enum Direction {
     Right,
 }
 
-pub fn move_cursor(direction: Direction, n: usize) {
+pub fn fmove_cursor(direction: Direction, n: usize, stdout: &mut dyn Write) -> std::io::Result<()> {
     if n == 0 {
-        return;
+        return Ok(());
     }
 
     let code = match direction {
@@ -20,7 +20,11 @@ pub fn move_cursor(direction: Direction, n: usize) {
         Direction::Left => 'D',
     };
 
-    print!("\x1b[{n}{code}");
+    write!(stdout, "\x1b[{n}{code}")
+}
+
+pub fn move_cursor(direction: Direction, n: usize) {
+    fmove_cursor(direction, n, &mut std::io::stdout()).unwrap()
 }
 
 pub fn save() {