commit d979d64fa269ff47a96fc6aed2f4cdd066753c0c
author Bram Moolenaar <Bram@vim.org> Fri Mar 04 14:51:06 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Fri Mar 04 14:51:06 2022 +0000
tree 1d8b94bce692199f62b828fce7733e4a0e65ca7a
parent 21efafe4c25373929979c72dc8aafa119f12dd8b

patch 8.2.4502: in the GUI a modifier is not recognized after CTRL-X

Problem:    In the GUI a modifier is not recognized for the key typed after
            CTRL-X, which may result in a mapping to be used. (Daniel
            Steinberg)
Solution:   Recognize a modifier starting with CSI. (closes #9889)

src/getchar.c

diff --git a/src/getchar.c b/src/getchar.c
index 9939bbd..2fbbd4f 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -2331,7 +2331,7 @@
     int	    c = *p;
 
     if (typebuf.tb_len > 3
-	    && c == K_SPECIAL
+	    && (c == K_SPECIAL || c == CSI)  // CSI is used by the GUI
 	    && p[1] == KS_MODIFIER
 	    && (p[2] & MOD_MASK_CTRL))
 	c = p[3] & 0x1f;