* util.c: Added ascii_alpha_to_cntrl(), which converts 'x' to

^X. Useful for entering control characters literally.
	* util.h: Likewise.
	* widget.c: Use that function after C-q.

src/ChangeLog

@@ -1,3 +1,10 @@
+2005-07-17  Roland Illig  <roland.illig@gmx.de>
+
+	* util.c: Added ascii_alpha_to_cntrl(), which converts 'x' to
+	^X. Useful for entering control characters literally.
+	* util.h: Likewise.
+	* widget.c: Use that function after C-q.
+
 2005-07-17  Roland Illig  <roland.illig@gmx.de>
 
 	* view.c: The viewer can remember the last file position and

src/util.c

@@ -1449,3 +1449,18 @@ str_unconst (const char *s)
 {
 	return (char *) s;
 }
+
+#define ASCII_A		(0x40 + 1)
+#define ASCII_Z		(0x40 + 26)
+#define ASCII_a		(0x60 + 1)
+#define ASCII_z		(0x60 + 26)
+
+extern int
+ascii_alpha_to_cntrl (int ch)
+{
+    if ((ch >= ASCII_A && ch <= ASCII_Z)
+        || (ch >= ASCII_a && ch <= ASCII_z)) {
+	ch &= 0x1f;
+    }
+    return ch;
+}

src/util.h

@@ -255,4 +255,8 @@ void save_file_position (const char *filename, long line, long column);
 /* usage: str_cmp ("foo", !=, "bar") */
 #define str_cmp(a,rel,b) (strcmp ((a), (b)) rel 0)
 
+/* if ch is in [A-Za-z], returns the corresponding control character,
+ * else returns the argument. */
+extern int ascii_alpha_to_cntrl (int ch);
+
 #endif

src/widget.c

@@ -1586,7 +1586,7 @@ input_callback (Widget *w, widget_msg_t msg, int parm)
     case WIDGET_KEY:
 	if (parm == XCTRL ('q')) {
 	    quote = 1;
-	    v = handle_char (in, mi_getch ());
+	    v = handle_char (in, ascii_alpha_to_cntrl (mi_getch ()));
 	    quote = 0;
 	    return v;
 	}