From ed867a78bb35c4d71bc5579f967591dbe4e548d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sat, 29 Jun 2019 20:49:00 +0200
Subject: [PATCH] vt: dummy implementation of of "ESC (B" (character charset)

---
 vt.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/vt.c b/vt.c
index 79b26dd6..9c3ba1aa 100644
--- a/vt.c
+++ b/vt.c
@@ -567,6 +567,27 @@ esc_dispatch(struct terminal *term, uint8_t final)
 #endif
 
     switch (final) {
+    case 'B': {
+        char param = term->vt.params.idx > 0 ? term->vt.params.v[0].value : '(';
+
+        switch (param) {
+        case '(':
+            /* This is the default charset */
+            break;
+
+        case ')':
+        case '*':
+        case '+':
+            LOG_ERR("unimplemented: character charset: %c", param);
+            return false;
+
+        default:
+            LOG_ERR("ESC <id> B: invalid charset identifier: %c", param);
+            return false;
+        }
+        break;
+    }
+
     case 'M':
         /* ri - reverse index (scroll reverse) */
         grid_scroll_reverse(&term->grid, 1);