Guess, because Guess expected ^H whereas GTK generated ^?. Other
puzzles that use Backspace do it by being prepared to see either,
which seems wasteful. Now the midend normalises both into ^H, so
front ends can generate whichever they like while puzzles can
safely just look for ^H.
[originally from svn r8786]
case '\r':
case '\n':
case '\b':
- case '\177':
button = 0;
break;
default:
if (button == ' ')
button = CURSOR_SELECT2;
+ /*
+ * Normalise both backspace characters (8 and 127) to \b. Easier
+ * to do this once, here, than to require all front ends to
+ * carefully generate the same one - now each front end can
+ * generate whichever is easiest.
+ */
+ if (button == '\177')
+ button = '\b';
+
/*
* Now send on the event we originally received.
*/
((button >= '0' && button <= '9' && button - '0' <= cr) ||
(button >= 'a' && button <= 'z' && button - 'a' + 10 <= cr) ||
(button >= 'A' && button <= 'Z' && button - 'A' + 10 <= cr) ||
- button == CURSOR_SELECT2 || button == '\010' || button == '\177')) {
+ button == CURSOR_SELECT2 || button == '\b')) {
int n = button - '0';
if (button >= 'A' && button <= 'Z')
n = button - 'A' + 10;
if (button >= 'a' && button <= 'z')
n = button - 'a' + 10;
- if (button == CURSOR_SELECT2 || button == '\010' || button == '\177')
+ if (button == CURSOR_SELECT2 || button == '\b')
n = 0;
/*
static int c2n(int c, int order) {
if (c < 0 || c > 0xff)
return -1;
- if (c == ' ' || c == '\010' || c == '\177')
+ if (c == ' ' || c == '\b')
return 0;
if (order < 10) {
if (c >= '1' && c <= '9')