From b416bef0b74ea92a3cd4193274cbbab025d62ba6 Mon Sep 17 00:00:00 2001
From: Stephan Dilly <dilly.stephan@gmail.com>
Date: Wed, 22 Apr 2020 11:40:10 +0200
Subject: [PATCH] add shift modifier to uppercase char events

---
 src/event/sys/unix/parse.rs | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/src/event/sys/unix/parse.rs b/src/event/sys/unix/parse.rs
index 1b4257a73..b2b88a6d6 100644
--- a/src/event/sys/unix/parse.rs
+++ b/src/event/sys/unix/parse.rs
@@ -95,13 +95,22 @@ pub(crate) fn parse_event(buffer: &[u8], input_available: bool) -> Result<Option
         _ => parse_utf8_char(buffer).map(|maybe_char| {
             maybe_char
                 .map(KeyCode::Char)
-                .map(Into::into)
+                .map(char_code_to_event)
                 .map(Event::Key)
                 .map(InternalEvent::Event)
         }),
     }
 }
 
+// converts KeyCode to KeyEvent (adds shift modifier in case of uppercase characters)
+fn char_code_to_event(code:KeyCode)->KeyEvent{
+    let modifiers = match code {
+        KeyCode::Char(c) if c.is_uppercase() => KeyModifiers::SHIFT,
+        _ => KeyModifiers::empty()
+    };
+    KeyEvent::new(code,modifiers)
+}
+
 pub(crate) fn parse_csi(buffer: &[u8]) -> Result<Option<InternalEvent>> {
     assert!(buffer.starts_with(&[b'\x1B', b'['])); // ESC [
 
@@ -714,4 +723,20 @@ mod tests {
         // 'Invalid 4 Octet Sequence (in 4th Octet)' => "\xf0\x28\x8c\x28",
         assert!(parse_utf8_char(&[0xF0, 0x28, 0x8C, 0x28]).is_err());
     }
+
+    #[test]
+    fn test_parse_char_event_lowercase() {
+        assert_eq!(
+            parse_event("c".as_bytes(), false).unwrap(),
+            Some(InternalEvent::Event(Event::Key(KeyEvent::new(KeyCode::Char('c'),KeyModifiers::empty())))),
+        );
+    }
+
+    #[test]
+    fn test_parse_char_event_uppercase() {
+        assert_eq!(
+            parse_event("C".as_bytes(), false).unwrap(),
+            Some(InternalEvent::Event(Event::Key(KeyEvent::new(KeyCode::Char('C'),KeyModifiers::SHIFT)))),
+        );
+    }
 }