yaozhuoyu

static Boolean PSPDFCaseInsensitiveEqualCallback(const void *a, const void *b) {
    id objA = (__bridge id)a, objB = (__bridge id)b;
    Boolean ret = FALSE;
    if ([objA isKindOfClass:NSString.class] && [objB isKindOfClass:NSString.class]) {
        ret = ([objA compare:objB options:NSCaseInsensitiveSearch|NSLiteralSearch] == NSOrderedSame);
    }else {
        ret = [objA isEqual:objB];
    }
    return ret;
}