+#define VALID_SHORTCUT(c) (((c) >= '0' && (c) <= '9') || \
+ ((c) >= 'A' && (c) <= 'Z') || \
+ ((c) >= 'a' && (c) <= 'z'))
+
+static gunichar parse_shortcut(const gchar *label, gchar **strippedlabel,
+ guint *position)
+{
+ gunichar shortcut = 0;
+
+ *position = 0;
+
+ g_assert(strippedlabel != NULL);
+
+ if (label == NULL) {
+ *strippedlabel = NULL;
+ } else {
+ gchar *i;
+
+ *strippedlabel = g_strdup(label);
+
+ i = strchr(*strippedlabel, '&');
+ if (i != NULL) {
+ /* there is an ampersand in the string */
+
+ /* you have to use a printable ascii character for shortcuts
+ don't allow space either, so you can have like "a & b"
+ */
+ if (VALID_SHORTCUT(*(i+1))) {
+ shortcut = g_unichar_tolower(g_utf8_get_char(i+1));
+ *position = i - *strippedlabel;
+
+ /* remove the & from the string */
+ for (; *i != '\0'; ++i)
+ *i = *(i+1);
+ }
+ } else {
+ /* there is no ampersand, so find the first valid character to use
+ instead */
+
+ for (i = *strippedlabel; *i != '\0'; ++i)
+ if (VALID_SHORTCUT(*i)) {
+ *position = i - *strippedlabel;
+ shortcut = g_unichar_tolower(g_utf8_get_char(i));
+ break;
+ }
+ }
+ }
+ return shortcut;
+}
+