Refactor the innermost loop of the xdraws function

Signed-off-by: Silvan Jegen <s.jegen@gmail.com>
Signed-off-by: Christoph Lohmann <20h@r-36.net>

st.c

@@ -3245,12 +3245,11 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
 			bytelen -= u8cblen;
 
 			doesexist = XftCharExists(xw.dpy, font->match, unicodep);
-			if(oneatatime || !doesexist || bytelen <= 0) {
-				if(oneatatime || bytelen <= 0) {
 			if(doesexist) {
 					u8fl++;
 					u8fblen += u8cblen;
-					}
+					if(!oneatatime && bytelen > 0)
+							continue;
 			}
 
 			if(u8fl > 0) {
@@ -3260,14 +3259,9 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
 						(FcChar8 *)u8fs,
 						u8fblen);
 				xp += xw.cw * u8fl;
-
 			}
 			break;
 		}
-
-			u8fl++;
-			u8fblen += u8cblen;
-		}
 		if(doesexist) {
 			if(oneatatime)
 				continue;