int process_escape_sequence(const char *source, char *dest, int destlen)
{
int i = 0;
while (*source) {
if (*source == '\\') {
switch (*(source + 1)) {
case 0:
return 0;
case '\\':
dest[i++] = '\\';
break;
case 'a':
dest[i++] = '\a';
break;
case 'b':
dest[i++] = '\b';
break;
case 'n':
dest[i++] = '\n';
break;
case 'r':
dest[i++] = '\r';
break;
case 't':
dest[i++] = '\t';
break;
case 'f':
dest[i++] = '\f';
break;
case 'e':
dest[i++] = 0x1b;
break;
case 'h':
i += snprintf(dest + i, destlen - i, "%s", barebox_get_model());
break;
case 'w':
i += snprintf(dest + i, destlen - i, "%s", getcwd());
break;
case '$':
if (*(source + 2) == '?') {
i += snprintf(dest + i, destlen - i, "%d", shell_get_last_return_code());
source++;
break;
}
default:
dest[i++] = '\\';
dest[i++] = *(source + 1);
}
source++;
} else
dest[i++] = *source;
source++;
if (!(destlen - i))
break;
}
dest[i] = 0;
return 0;
}
void barebox_banner (void)
{
pr_info("\n\n%s\n\n", version_string);
pr_info("Board: %s\n", barebox_get_model());
}
