st

commit aba6c292af347588b9c2f5d1a400a6270b5a447f
parent 4d14d97547d335974e98aa612ac5b4fcfc25e1d9
Author: Rian Hunter <rian@alum.mit.edu>
Date:   Thu, 29 Jan 2015 15:00:39 -0800

Correct shift amount on MODE_INSERT in tputc()

When MODE_INSERT is set we'd shift characters on the same
line forward before inserting our character in tputc().
This did not account for wide characters where width != 1.
This patch makes it so we shift the correct amount.

Diffstat:
st.c
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/st.c b/st.c
@@ -2676,8 +2676,8 @@ tputc(char *c, int len) {
 		gp = &term.line[term.c.y][term.c.x];
 	}
 
-	if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col)
-		memmove(gp+1, gp, (term.col - term.c.x - 1) * sizeof(Glyph));
+	if(IS_SET(MODE_INSERT) && term.c.x+width < term.col)
+		memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
 
 	if(term.c.x+width > term.col) {
 		tnewline(1);