Add SUB and CAN control codes

These control codes reset any escape sequence already initialised.
---
 st.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

1 files changed, 5 insertions, 2 deletions

diff --git a/st.c b/st.c
index aa5f085..8e25d23 100644
--- a/st.c
+++ b/st.c
@@ -1816,8 +1816,11 @@ tputc(char *c, int len) {
                 return;
         case '\016':    /* XXX: SO */
         case '\017':    /* XXX: SI */
-        case '\032':    /* XXX: SUB */
-        case '\030':    /* XXX: CAN */
+                break;
+        case '\032':    /* SUB */
+        case '\030':    /* CAN */
+                csireset();
+                return;
         default:
         /* case '\005': ENQ (IGNORED) */
         /* case '\000': NUL (IGNORED) */