Fix handling of shifted SCO function keys.

A user points out that this has regressed since 0.76, probably when I
reorganised the keyboard control-sequence formatting into centralised
helper functions in terminal.c.

The SCO function keys should behave differently when you press Shift
or Ctrl or both. For example, F1 should generate ESC[M bare, ESC[Y
with Shift, Esc[k with Ctrl, Esc[w with Shift+Ctrl. But in fact, Shift
was having no effect, so those tests would give ESC[M twice and ESC[k
twice.

That was because I was setting 'shift = false' for all function key
types except FUNKY_XTERM_216, after modifying the derived 'index'
value. But the SCO branch of the code doesn't use 'index' (it wouldn't
have the right value in any case), so the sole effect was to forget
about Shift. Easily fixed by disabling that branch for FUNKY_SCO too.

(cherry picked from commit aa01530488e0b693172b513836fa6881d387ea8a)

1 files changed, 1 insertions, 1 deletions

diff --git a/terminal/terminal.c b/terminal/terminal.c
index 3398cd59..923ed03e 100644
--- a/terminal/terminal.c
+++ b/terminal/terminal.c
@@ -7373,7 +7373,7 @@ int format_function_key(char *buf, Terminal *term, int key_number,
     assert(key_number < lenof(key_number_to_tilde_code));
 
     int index = key_number;
-    if (term->funky_type != FUNKY_XTERM_216) {
+    if (term->funky_type != FUNKY_XTERM_216 && term->funky_type != FUNKY_SCO) {
         if (shift && index <= 10) {
             shift = false;
             index += 10;