Function MacOSStringContains

src/os/macosx/string_osx.cpp:355–370

* Search if a string is contained in another string using the current locale. * * @param str String to search in. * @param value String to search for. * @param case_insensitive Search case-insensitive. * @return 1 if value was found, 0 if it was not found, or -1 if not supported by the OS. */

 * @return 1 if value was found, 0 if it was not found, or -1 if not supported by the OS.
 */
int MacOSStringContains(std::string_view str, std::string_view value, bool case_insensitive)
{
	static const bool supported = MacOSVersionIsAtLeast(10, 5, 0);
	if (!supported) return -1;

	CFStringCompareFlags flags = kCFCompareLocalized | kCFCompareWidthInsensitive;
	if (case_insensitive) flags |= kCFCompareCaseInsensitive;

	CFAutoRelease<CFStringRef> cf_str(CFStringCreateWithBytes(kCFAllocatorDefault, (const UInt8 *)str.data(), str.size(), kCFStringEncodingUTF8, false));
	CFAutoRelease<CFStringRef> cf_value(CFStringCreateWithBytes(kCFAllocatorDefault, (const UInt8 *)value.data(), value.size(), kCFStringEncodingUTF8, false));

	/* If any CFString could not be created (e.g., due to UTF8 invalid chars), return OS unsupported functionality */
	if (cf_str == nullptr || cf_value == nullptr) return -1;

	return CFStringFindWithOptionsAndLocale(cf_str.get(), cf_value.get(), CFRangeMake(0, CFStringGetLength(cf_str.get())), flags, _osx_locale.get(), nullptr) ? 1 : 0;
}


/* virtual */ void OSXStringIterator::SetString(std::string_view s)