X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=st.c;h=aaf868d84ca783a10040b0f15de590f227a8cf86;hb=0c94f8621b738c51c9e08abc3c52fe8dfe24b953;hp=1df4fde1cbd927be170fabfcfd9d6e48e2960eac;hpb=ee5cad439b427fa974903a6f0bb2689d11119d89;p=st.git

diff --git a/st.c b/st.c
index 1df4fde..aaf868d 100644
--- a/st.c
+++ b/st.c
@@ -1531,7 +1531,8 @@ ttywrite(const char *s, size_t n)
 				 * This means the buffer is getting full
 				 * again. Empty it.
 				 */
-				ttyread();
+				if (n < 256)
+					ttyread();
 				n -= r;
 				s += r;
 			} else {
@@ -2895,15 +2896,15 @@ tputc(Rune u)
 	int width, len;
 	Glyph *gp;
 
+	control = ISCONTROL(u);
 	len = utf8encode(u, c);
-	if ((width = wcwidth(u)) == -1) {
+	if (!control && (width = wcwidth(u)) == -1) {
 		memcpy(c, "\357\277\275", 4); /* UTF_INVALID */
 		width = 1;
 	}
 
 	if (IS_SET(MODE_PRINT))
 		tprinter(c, len);
-	control = ISCONTROL(u);
 
 	/*
 	 * STR sequence must be checked before anything else