Implement CSI REP

term/src/terminalstate.rs

@@ -1515,6 +1515,18 @@ impl TerminalState {
             Edit::ScrollDown(n) => self.scroll_down(n as usize),
             Edit::ScrollUp(n) => self.scroll_up(n as usize),
             Edit::EraseInDisplay(erase) => self.erase_in_display(erase),
+            Edit::Repeat(n) => {
+                let y = self.cursor.y;
+                let x = self.cursor.x;
+                let to_copy = x.saturating_sub(1);
+                let screen = self.screen_mut();
+                let line_idx = screen.phys_row(y);
+                let line = screen.line_mut(line_idx);
+                if let Some(cell) = line.cells().get(to_copy).cloned() {
+                    line.fill_range(x..=x + n as usize, &cell);
+                    self.set_cursor_pos(&Position::Relative(i64::from(n)), &Position::Relative(0))
+                }
+            }
         }
     }
 

term/src/test/csi.rs

@@ -19,6 +19,15 @@ fn test_vpa() {
     term.assert_cursor_pos(0, 1, None);
 }
 
+#[test]
+fn test_rep() {
+    let mut term = TestTerm::new(3, 4, 0);
+    term.print("h");
+    term.cup(1, 0);
+    term.print("\x1b[2ba");
+    assert_visible_contents(&term, &["hhha", "    ", "    "]);
+}
+
 #[test]
 fn test_ich() {
     let mut term = TestTerm::new(3, 4, 0);

termwiz/src/escape/csi.rs

@@ -668,6 +668,9 @@ pub enum Edit {
 
     /// ED - ERASE IN PAGE (XTerm calls this Erase in Display)
     EraseInDisplay(EraseInDisplay),
+
+    /// REP - Repeat the preceding character n times
+    Repeat(u32),
 }
 
 trait EncodeCSIParam {
@@ -707,6 +710,7 @@ impl Display for Edit {
             Edit::ScrollDown(n) => n.write_csi(f, "T")?,
             Edit::ScrollUp(n) => n.write_csi(f, "S")?,
             Edit::EraseInDisplay(n) => n.write_csi(f, "J")?,
+            Edit::Repeat(n) => n.write_csi(f, "b")?,
         }
         Ok(())
     }
@@ -1144,6 +1148,7 @@ impl<'a> CSIParser<'a> {
             ('Z', &[]) => parse!(Cursor, BackwardTabulation, params),
 
             ('a', &[]) => parse!(Cursor, CharacterPositionForward, params),
+            ('b', &[]) => parse!(Edit, Repeat, params),
             ('d', &[]) => parse!(Cursor, LinePositionAbsolute, params),
             ('e', &[]) => parse!(Cursor, LinePositionForward, params),
             ('f', &[]) => parse!(Cursor, CharacterAndLinePosition, line, col, params),