From 66033b9b1a80a393b19c6ffffcc25462a2012910 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Wed, 3 Jul 2019 15:58:49 +0200
Subject: [PATCH] csi: implement 'erase characters' (CSI X)

---
 csi.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/csi.c b/csi.c
index 98055c5b..a9de94b2 100644
--- a/csi.c
+++ b/csi.c
@@ -473,6 +473,17 @@ csi_dispatch(struct terminal *term, uint8_t final)
             break;
         }
 
+        case 'X': {
+            /* Erase chars */
+            int count = min(
+                param_get(term, 0, 1), term->cols - term->cursor.col);
+
+            memset(&term->grid->cur_line[term->cursor.col],
+                   0, count * sizeof(term->grid->cur_line[0]));
+            term_damage_erase(term, term->cursor.linear, count);
+            break;
+        }
+
         case 'l': {
             /* Horizontal index */
             assert(false && "untested");