--- ray/src/px/x11image.c	1991/11/12 16:04:23	2.1
+++ ray/src/px/x11image.c	1992/04/28 09:40:32	2.4
@@ -34,7 +34,7 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #define  FONTNAME	"8x13"		/* text font we'll use */
 
-#define  CTRL(c)	('c'-'@')
+#define  CTRL(c)	((c)-'@')
 
 #define  BORWIDTH	5		/* border width */
 
@@ -105,7 +105,7 @@ extern long  ftell();
 
 extern char  *malloc(), *calloc();
 
-extern double  atof(), pow(), log();
+extern double  pow(), log();
 
 Display  *thedisplay;
 
@@ -192,8 +192,6 @@ userr:
 headline(s)		/* get relevant info from header */
 char  *s;
 {
-	static char  *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL};
-	register char  **an;
 	char  fmt[32];
 
 	if (isexpos(s))
@@ -201,13 +199,8 @@ char  *s;
 	else if (isformat(s)) {
 		formatval(fmt, s);
 		wrongformat = strcmp(fmt, COLRFMT);
-	} else
-		for (an = altname; *an != NULL; an++)
-			if (!strncmp(*an, s, strlen(*an))) {
-				if (sscanview(&ourview, s+strlen(*an)) > 0)
-					gotview++;
-				return;
-			}
+	} else if (isview(s) && sscanview(&ourview, s) > 0)
+		gotview++;
 }
 
 
@@ -419,7 +412,7 @@ XKeyPressedEvent  *ekey;
 	com = buf[0];
 	switch (com) {			/* interpret command */
 	case 'q':
-	case CTRL(D):				/* quit */
+	case CTRL('D'):				/* quit */
 		quit(0);
 	case '\n':
 	case '\r':
@@ -493,8 +486,8 @@ XKeyPressedEvent  *ekey;
 		free_raster(ourras);
 		getras();
 	/* fall through */
-	case CTRL(R):				/* redraw */
-	case CTRL(L):
+	case CTRL('R'):				/* redraw */
+	case CTRL('L'):
 		unmap_rcolors(ourras);
 		XClearWindow(thedisplay, wind);
 		map_rcolors(ourras, wind);