A modifier or function key alone types nothing into a terminal pane

1 files changed, 5 insertions, 1 deletions

diff --git a/src/Terminal.zig b/src/Terminal.zig
index 32595d25..a32819c3 100644
--- a/src/Terminal.zig
+++ b/src/Terminal.zig
@@ -1131,7 +1131,11 @@ pub fn forwardKey(p: *Pardes, id: usize, key: Key) void {
         };
         var utf8: [4]u8 = undefined;
         const text_cp = if (key.shift and key.cp >= 'a' and key.cp <= 'z') key.cp - 'a' + 'A' else key.cp;
-        const text = if (key.text.len > 0) key.text else if (key.cp >= 32 and key.cp < Key.up and key.cp != Key.backspace)
+        // A key with no text of its own types its code point only when that
+        // is a character: the kitty keyboard protocol numbers function and
+        // modifier keys in the private use area (F3 is U+E016), and a shell
+        // was typed those as junk.
+        const text = if (key.text.len > 0) key.text else if (key.cp >= 32 and key.cp < Key.up and key.cp != Key.backspace and !(key.cp >= 0xE000 and key.cp <= 0xF8FF))
             utf8[0 .. std.unicode.utf8Encode(text_cp, &utf8) catch return]
         else
             "";