Print highlighted input text only on single match

When the input text fully matches a single item, do not draw the item
and highlight the input text to show that it matches an item in
opposition to regular input text not matching anything.

dmenu.c

@@ -130,7 +130,7 @@ drawmenu(void)
 {
 	unsigned int curpos;
 	struct item *item;
-	int x = 0, y = 0, w;
+	int x = 0, y = 0, w, inputscheme;
 
 	drw_setscheme(drw, scheme[SchemeNorm]);
 	drw_rect(drw, 0, 0, mw, mh, 1, 1);
@@ -138,18 +138,27 @@ drawmenu(void)
 	if (prompt && *prompt) {
 		drw_setscheme(drw, scheme[SchemeSel]);
 		x = drw_text(drw, x, 0, promptw, bh, lrpad / 2, prompt, 0);
+		x += 2;
 	}
 	/* draw input field */
 	w = (lines > 0 || !matches) ? mw - x : inputw;
-	drw_setscheme(drw, scheme[SchemeNorm]);
+	if (matches && !strcmp(text, curr->text))
+		inputscheme = SchemeSel;
+	else
+		inputscheme = SchemeNorm;
+	drw_setscheme(drw, scheme[inputscheme]);
+
 	drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0);
 
 	drw_font_getexts(drw->fonts, text, cursor, &curpos, NULL);
 	if ((curpos += lrpad / 2 - 1) < w) {
-		drw_setscheme(drw, scheme[SchemeNorm]);
+		drw_setscheme(drw, scheme[inputscheme]);
 		drw_rect(drw, x + curpos, 2, 2, bh - 4, 1, 0);
 	}
 
+	if (inputscheme == SchemeSel)
+		goto drawmap;
+
 	if (lines > 0) {
 		/* draw vertical list */
 		for (item = curr; item != next; item = item->right)
@@ -171,6 +180,7 @@ drawmenu(void)
 			drw_text(drw, mw - w, 0, w, bh, lrpad / 2, ">", 0);
 		}
 	}
+drawmap:
 	drw_map(drw, win, 0, 0, mw, mh);
 }