[hackers] [st][PATCH] Fix wide glyphs breaking "nowrap" mode

[Peter Hofmann]

From: Peter Hofmann <s...@uninformativ.de>

Consider the following example:

    printf '\e[?7l';\
    for i in $(seq $(($(tput cols) - 1))); do printf a; done;\
    printf '🙈\n';\
    printf '\e[?7h'

Even though MODE_WRAP has been disabled, the emoji appeared on the next
line. This patch keeps wide glyphs on the same line and moves them to
the right-most possible position.
---
 st.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/st.c b/st.c
index 3d250dd..4754c87 100644
--- a/st.c
+++ b/st.c
@@ -2477,7 +2477,10 @@ check_control_code:
        }
 
        if (term.c.x+width > term.col) {
-               tnewline(1);
+               if (IS_SET(MODE_WRAP))
+                       tnewline(1);
+               else
+                       tmoveto(term.col - width, term.c.y);
                gp = &term.line[term.c.y][term.c.x];
        }
 
-- 
2.42.0