| /* CFCharacterSetPriv.h |
| Copyright (c) 1998-2017, Apple Inc. and the Swift project authors |
| |
| Portions Copyright (c) 2014-2017, Apple Inc. and the Swift project authors |
| Licensed under Apache License v2.0 with Runtime Library Exception |
| See http://swift.org/LICENSE.txt for license information |
| See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| */ |
| |
| #if !defined(__COREFOUNDATION_CFCHARACTERSETPRIV__) |
| #define __COREFOUNDATION_CFCHARACTERSETPRIV__ 1 |
| |
| #include <CoreFoundation/CFCharacterSet.h> |
| |
| CF_EXTERN_C_BEGIN |
| |
| /*! |
| @function CFCharacterSetIsSurrogateHighCharacter |
| Reports whether or not the character is a high surrogate. |
| @param character The character to be checked. |
| @result true, if character is a high surrogate, otherwise false. |
| */ |
| CF_INLINE Boolean CFCharacterSetIsSurrogateHighCharacter(UniChar character) { |
| return ((character >= 0xD800UL) && (character <= 0xDBFFUL) ? true : false); |
| } |
| |
| /*! |
| @function CFCharacterSetIsSurrogateLowCharacter |
| Reports whether or not the character is a low surrogate. |
| @param character The character to be checked. |
| @result true, if character is a low surrogate, otherwise false. |
| */ |
| CF_INLINE Boolean CFCharacterSetIsSurrogateLowCharacter(UniChar character) { |
| return ((character >= 0xDC00UL) && (character <= 0xDFFFUL) ? true : false); |
| } |
| |
| /*! |
| @function CFCharacterSetGetLongCharacterForSurrogatePair |
| Returns the UTF-32 value corresponding to the surrogate pair passed in. |
| @param surrogateHigh The high surrogate character. If this parameter |
| is not a valid high surrogate character, the behavior is undefined. |
| @param surrogateLow The low surrogate character. If this parameter |
| is not a valid low surrogate character, the behavior is undefined. |
| @result The UTF-32 value for the surrogate pair. |
| */ |
| CF_INLINE UTF32Char CFCharacterSetGetLongCharacterForSurrogatePair(UniChar surrogateHigh, UniChar surrogateLow) { |
| return (UTF32Char)(((surrogateHigh - 0xD800UL) << 10) + (surrogateLow - 0xDC00UL) + 0x0010000UL); |
| } |
| |
| /* Check to see if the character represented by the surrogate pair surrogateHigh & surrogateLow is in the chraracter set */ |
| CF_EXPORT Boolean CFCharacterSetIsSurrogatePairMember(CFCharacterSetRef theSet, UniChar surrogateHigh, UniChar surrogateLow) ; |
| |
| /* Keyed-coding support |
| */ |
| typedef CF_ENUM(CFIndex, CFCharacterSetKeyedCodingType) { |
| kCFCharacterSetKeyedCodingTypeBitmap = 1, |
| kCFCharacterSetKeyedCodingTypeBuiltin = 2, |
| kCFCharacterSetKeyedCodingTypeRange = 3, |
| kCFCharacterSetKeyedCodingTypeString = 4, |
| kCFCharacterSetKeyedCodingTypeBuiltinAndBitmap = 5 |
| }; |
| |
| CF_EXPORT CFCharacterSetKeyedCodingType _CFCharacterSetGetKeyedCodingType(CFCharacterSetRef cset); |
| CF_EXPORT CFCharacterSetPredefinedSet _CFCharacterSetGetKeyedCodingBuiltinType(CFCharacterSetRef cset); |
| CF_EXPORT CFRange _CFCharacterSetGetKeyedCodingRange(CFCharacterSetRef cset); |
| CF_EXPORT CFStringRef _CFCharacterSetCreateKeyedCodingString(CFCharacterSetRef cset); |
| CF_EXPORT bool _CFCharacterSetIsInverted(CFCharacterSetRef cset); |
| CF_EXPORT void _CFCharacterSetSetIsInverted(CFCharacterSetRef cset, bool flag); |
| |
| CF_EXTERN_C_END |
| |
| #endif /* ! __COREFOUNDATION_CFCHARACTERSETPRIV__ */ |
| |