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/* CFCharacterSet.h
Copyright (c) 1999-2019, Apple Inc. and the Swift project authors
Portions Copyright (c) 2014-2019, 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
*/
/*!
@header CFCharacterSet
CFCharacterSet represents a set, or a bag, of Unicode characters.
The API consists of 3 groups:
1) creation/manipulation of CFCharacterSet instances,
2) query of a single Unicode character membership,
and 3) bitmap representation related (reading/writing).
Conceptually, CFCharacterSet is a 136K byte bitmap array of
which each bit represents a Unicode code point. It could
contain the Unicode characters in ISO 10646 Basic Multilingual
Plane (BMP) and characters in Plane 1 through Plane 16
accessible via surrogate paris in the Unicode Transformation
Format, 16-bit encoding form (UTF-16). In other words, it can
store values from 0x00000 to 0x10FFFF in the Unicode
Transformation Format, 32-bit encoding form (UTF-32). However,
in general, how CFCharacterSet stores the information is an
implementation detail. Note even CFData used for the external
bitmap representation rarely has 136K byte. For detailed
discussion of the external bitmap representation, refer to the
comments for CFCharacterSetCreateWithBitmapRepresentation below.
Note that the existance of non-BMP characters in a character set
does not imply the membership of the corresponding surrogate
characters. For example, a character set with U+10000 does not
match with U+D800.
*/
#if !defined(__COREFOUNDATION_CFCHARACTERSET__)
#define __COREFOUNDATION_CFCHARACTERSET__ 1
#include "CFBase.h"
#include "CFData.h"
CF_IMPLICIT_BRIDGING_ENABLED
CF_EXTERN_C_BEGIN
/*!
@typedef CFCharacterSetRef
This is the type of a reference to immutable CFCharacterSets.
*/
typedef const struct CF_BRIDGED_TYPE(NSCharacterSet) __CFCharacterSet * CFCharacterSetRef;
/*!
@typedef CFMutableCharacterSetRef
This is the type of a reference to mutable CFMutableCharacterSets.
*/
typedef struct CF_BRIDGED_MUTABLE_TYPE(NSMutableCharacterSet) __CFCharacterSet * CFMutableCharacterSetRef;
/*!
@typedef CFCharacterSetPredefinedSet
Type of the predefined CFCharacterSet selector values.
*/
typedef CF_ENUM(CFIndex, CFCharacterSetPredefinedSet) {
kCFCharacterSetControl = 1, /* Control character set (Unicode General Category Cc and Cf) */
kCFCharacterSetWhitespace, /* Whitespace character set (Unicode General Category Zs and U0009 CHARACTER TABULATION) */
kCFCharacterSetWhitespaceAndNewline, /* Whitespace and Newline character set (Unicode General Category Z*, U000A ~ U000D, and U0085) */
kCFCharacterSetDecimalDigit, /* Decimal digit character set */
kCFCharacterSetLetter, /* Letter character set (Unicode General Category L* & M*) */
kCFCharacterSetLowercaseLetter, /* Lowercase character set (Unicode General Category Ll) */
kCFCharacterSetUppercaseLetter, /* Uppercase character set (Unicode General Category Lu and Lt) */
kCFCharacterSetNonBase, /* Non-base character set (Unicode General Category M*) */
kCFCharacterSetDecomposable, /* Canonically decomposable character set */
kCFCharacterSetAlphaNumeric, /* Alpha Numeric character set (Unicode General Category L*, M*, & N*) */
kCFCharacterSetPunctuation, /* Punctuation character set (Unicode General Category P*) */
kCFCharacterSetCapitalizedLetter = 13, /* Titlecase character set (Unicode General Category Lt) */
kCFCharacterSetSymbol = 14, /* Symbol character set (Unicode General Category S*) */
kCFCharacterSetNewline API_AVAILABLE(macos(10.5), ios(2.0), watchos(2.0), tvos(9.0)) = 15, /* Newline character set (U000A ~ U000D, U0085, U2028, and U2029) */
kCFCharacterSetIllegal = 12/* Illegal character set */
};
/*!
@function CFCharacterSetGetTypeID
Returns the type identifier of all CFCharacterSet instances.
*/
CF_EXPORT
CFTypeID CFCharacterSetGetTypeID(void);
/*!
@function CFCharacterSetGetPredefined
Returns a predefined CFCharacterSet instance.
@param theSetIdentifier The CFCharacterSetPredefinedSet selector
which specifies the predefined character set. If the
value is not in CFCharacterSetPredefinedSet, the behavior
is undefined.
@result A reference to the predefined immutable CFCharacterSet.
This instance is owned by CF.
*/
CF_EXPORT
CFCharacterSetRef CFCharacterSetGetPredefined(CFCharacterSetPredefinedSet theSetIdentifier);
/*!
@function CFCharacterSetCreateWithCharactersInRange
Creates a new immutable character set with the values from the given range.
@param alloc The CFAllocator which should be used to allocate
memory for the array and its storage for values. This
parameter may be NULL in which case the current default
CFAllocator is used. If this reference is not a valid
CFAllocator, the behavior is undefined.
@param theRange The CFRange which should be used to specify the
Unicode range the character set is filled with. It
accepts the range in 32-bit in the UTF-32 format. The
valid character point range is from 0x00000 to 0x10FFFF.
If the range is outside of the valid Unicode character
point, the behavior is undefined.
@result A reference to the new immutable CFCharacterSet.
*/
CF_EXPORT
CFCharacterSetRef CFCharacterSetCreateWithCharactersInRange(CFAllocatorRef alloc, CFRange theRange);
/*!
@function CFCharacterSetCreateWithCharactersInString
Creates a new immutable character set with the values in the given string.
@param alloc The CFAllocator which should be used to allocate
memory for the array and its storage for values. This
parameter may be NULL in which case the current default
CFAllocator is used. If this reference is not a valid
CFAllocator, the behavior is undefined.
@param theString The CFString which should be used to specify
the Unicode characters the character set is filled with.
If this parameter is not a valid CFString, the behavior
is undefined.
@result A reference to the new immutable CFCharacterSet.
*/
CF_EXPORT
CFCharacterSetRef CFCharacterSetCreateWithCharactersInString(CFAllocatorRef alloc, CFStringRef theString);
/*!
@function CFCharacterSetCreateWithBitmapRepresentation
Creates a new immutable character set with the bitmap representtion in the given data.
@param alloc The CFAllocator which should be used to allocate
memory for the array and its storage for values. This
parameter may be NULL in which case the current default
CFAllocator is used. If this reference is not a valid
CFAllocator, the behavior is undefined.
@param theData The CFData which should be used to specify the
bitmap representation of the Unicode character points
the character set is filled with. The bitmap
representation could contain all the Unicode character
range starting from BMP to Plane 16. The first 8192 bytes
of the data represent the BMP range. The BMP range 8192
bytes can be followed by zero to sixteen 8192 byte
bitmaps, each one with the plane index byte prepended.
For example, the bitmap representing the BMP and Plane 2
has the size of 16385 bytes (8192 bytes for BMP, 1 byte
index + 8192 bytes bitmap for Plane 2). The plane index
byte, in this case, contains the integer value two. If
this parameter is not a valid CFData or it contains a
Plane index byte outside of the valid Plane range
(1 to 16), the behavior is undefined.
@result A reference to the new immutable CFCharacterSet.
*/
CF_EXPORT
CFCharacterSetRef CFCharacterSetCreateWithBitmapRepresentation(CFAllocatorRef alloc, CFDataRef theData);
/*!
@function CFCharacterSetCreateInvertedSet
Creates a new immutable character set that is the invert of the specified character set.
@param alloc The CFAllocator which should be used to allocate
memory for the array and its storage for values. This
parameter may be NULL in which case the current default
CFAllocator is used. If this reference is not a valid
CFAllocator, the behavior is undefined.
@param theSet The CFCharacterSet which is to be inverted. If this
parameter is not a valid CFCharacterSet, the behavior is
undefined.
@result A reference to the new immutable CFCharacterSet.
*/
CF_EXPORT CFCharacterSetRef CFCharacterSetCreateInvertedSet(CFAllocatorRef alloc, CFCharacterSetRef theSet);
/*!
@function CFCharacterSetIsSupersetOfSet
Reports whether or not the character set is a superset of the character set specified as the second parameter.
@param theSet The character set to be checked for the membership of theOtherSet.
If this parameter is not a valid CFCharacterSet, the behavior is undefined.
@param theOtherset The character set to be checked whether or not it is a subset of theSet.
If this parameter is not a valid CFCharacterSet, the behavior is undefined.
*/
CF_EXPORT Boolean CFCharacterSetIsSupersetOfSet(CFCharacterSetRef theSet, CFCharacterSetRef theOtherset);
/*!
@function CFCharacterSetHasMemberInPlane
Reports whether or not the character set contains at least one member character in the specified plane.
@param theSet The character set to be checked for the membership. If this
parameter is not a valid CFCharacterSet, the behavior is undefined.
@param thePlane The plane number to be checked for the membership.
The valid value range is from 0 to 16. If the value is outside of the valid
plane number range, the behavior is undefined.
*/
CF_EXPORT Boolean CFCharacterSetHasMemberInPlane(CFCharacterSetRef theSet, CFIndex thePlane);
/*!
@function CFCharacterSetCreateMutable
Creates a new empty mutable character set.
@param alloc The CFAllocator which should be used to allocate
memory for the array and its storage for values. This
parameter may be NULL in which case the current default
CFAllocator is used. If this reference is not a valid
CFAllocator, the behavior is undefined.
@result A reference to the new mutable CFCharacterSet.
*/
CF_EXPORT
CFMutableCharacterSetRef CFCharacterSetCreateMutable(CFAllocatorRef alloc);
/*!
@function CFCharacterSetCreateCopy
Creates a new character set with the values from the given character set. This function tries to compact the backing store where applicable.
@param alloc The CFAllocator which should be used to allocate
memory for the array and its storage for values. This
parameter may be NULL in which case the current default
CFAllocator is used. If this reference is not a valid
CFAllocator, the behavior is undefined.
@param theSet The CFCharacterSet which is to be copied. If this
parameter is not a valid CFCharacterSet, the behavior is
undefined.
@result A reference to the new CFCharacterSet.
*/
CF_EXPORT
CFCharacterSetRef CFCharacterSetCreateCopy(CFAllocatorRef alloc, CFCharacterSetRef theSet);
/*!
@function CFCharacterSetCreateMutableCopy
Creates a new mutable character set with the values from the given character set.
@param alloc The CFAllocator which should be used to allocate
memory for the array and its storage for values. This
parameter may be NULL in which case the current default
CFAllocator is used. If this reference is not a valid
CFAllocator, the behavior is undefined.
@param theSet The CFCharacterSet which is to be copied. If this
parameter is not a valid CFCharacterSet, the behavior is
undefined.
@result A reference to the new mutable CFCharacterSet.
*/
CF_EXPORT
CFMutableCharacterSetRef CFCharacterSetCreateMutableCopy(CFAllocatorRef alloc, CFCharacterSetRef theSet);
/*!
@function CFCharacterSetIsCharacterMember
Reports whether or not the Unicode character is in the character set.
@param theSet The character set to be searched. If this parameter
is not a valid CFCharacterSet, the behavior is undefined.
@param theChar The Unicode character for which to test against the
character set. Note that this function takes 16-bit Unicode
character value; hence, it does not support access to the
non-BMP planes.
@result true, if the value is in the character set, otherwise false.
*/
CF_EXPORT
Boolean CFCharacterSetIsCharacterMember(CFCharacterSetRef theSet, UniChar theChar);
/*!
@function CFCharacterSetIsLongCharacterMember
Reports whether or not the UTF-32 character is in the character set.
@param theSet The character set to be searched. If this parameter
is not a valid CFCharacterSet, the behavior is undefined.
@param theChar The UTF-32 character for which to test against the
character set.
@result true, if the value is in the character set, otherwise false.
*/
CF_EXPORT Boolean CFCharacterSetIsLongCharacterMember(CFCharacterSetRef theSet, UTF32Char theChar);
/*!
@function CFCharacterSetCreateBitmapRepresentation
Creates a new immutable data with the bitmap representation from the given character set.
@param alloc The CFAllocator which should be used to allocate
memory for the array and its storage for values. This
parameter may be NULL in which case the current default
CFAllocator is used. If this reference is not a valid
CFAllocator, the behavior is undefined.
@param theSet The CFCharacterSet which is to be used create the
bitmap representation from. Refer to the comments for
CFCharacterSetCreateWithBitmapRepresentation for the
detailed discussion of the bitmap representation format.
If this parameter is not a valid CFCharacterSet, the
behavior is undefined.
@result A reference to the new immutable CFData.
*/
CF_EXPORT
CFDataRef CFCharacterSetCreateBitmapRepresentation(CFAllocatorRef alloc, CFCharacterSetRef theSet);
/*!
@function CFCharacterSetAddCharactersInRange
Adds the given range to the charaacter set.
@param theSet The character set to which the range is to be added.
If this parameter is not a valid mutable CFCharacterSet,
the behavior is undefined.
@param theRange The range to add to the character set. It accepts
the range in 32-bit in the UTF-32 format. The valid
character point range is from 0x00000 to 0x10FFFF. If the
range is outside of the valid Unicode character point,
the behavior is undefined.
*/
CF_EXPORT
void CFCharacterSetAddCharactersInRange(CFMutableCharacterSetRef theSet, CFRange theRange);
/*!
@function CFCharacterSetRemoveCharactersInRange
Removes the given range from the charaacter set.
@param theSet The character set from which the range is to be
removed. If this parameter is not a valid mutable
CFCharacterSet, the behavior is undefined.
@param theRange The range to remove from the character set.
It accepts the range in 32-bit in the UTF-32 format.
The valid character point range is from 0x00000 to 0x10FFFF.
If the range is outside of the valid Unicode character point,
the behavior is undefined.
*/
CF_EXPORT
void CFCharacterSetRemoveCharactersInRange(CFMutableCharacterSetRef theSet, CFRange theRange);
/*!
@function CFCharacterSetAddCharactersInString
Adds the characters in the given string to the charaacter set.
@param theSet The character set to which the characters in the
string are to be added. If this parameter is not a
valid mutable CFCharacterSet, the behavior is undefined.
@param theString The string to add to the character set.
If this parameter is not a valid CFString, the behavior
is undefined.
*/
CF_EXPORT
void CFCharacterSetAddCharactersInString(CFMutableCharacterSetRef theSet, CFStringRef theString);
/*!
@function CFCharacterSetRemoveCharactersInString
Removes the characters in the given string from the charaacter set.
@param theSet The character set from which the characters in the
string are to be remove. If this parameter is not a
valid mutable CFCharacterSet, the behavior is undefined.
@param theString The string to remove from the character set.
If this parameter is not a valid CFString, the behavior
is undefined.
*/
CF_EXPORT
void CFCharacterSetRemoveCharactersInString(CFMutableCharacterSetRef theSet, CFStringRef theString);
/*!
@function CFCharacterSetUnion
Forms the union with the given character set.
@param theSet The destination character set into which the
union of the two character sets is stored. If this
parameter is not a valid mutable CFCharacterSet, the
behavior is undefined.
@param theOtherSet The character set with which the union is
formed. If this parameter is not a valid CFCharacterSet,
the behavior is undefined.
*/
CF_EXPORT
void CFCharacterSetUnion(CFMutableCharacterSetRef theSet, CFCharacterSetRef theOtherSet);
/*!
@function CFCharacterSetIntersect
Forms the intersection with the given character set.
@param theSet The destination character set into which the
intersection of the two character sets is stored.
If this parameter is not a valid mutable CFCharacterSet,
the behavior is undefined.
@param theOtherSet The character set with which the intersection
is formed. If this parameter is not a valid CFCharacterSet,
the behavior is undefined.
*/
CF_EXPORT
void CFCharacterSetIntersect(CFMutableCharacterSetRef theSet, CFCharacterSetRef theOtherSet);
/*!
@function CFCharacterSetInvert
Inverts the content of the given character set.
@param theSet The character set to be inverted.
If this parameter is not a valid mutable CFCharacterSet,
the behavior is undefined.
*/
CF_EXPORT
void CFCharacterSetInvert(CFMutableCharacterSetRef theSet);
CF_EXTERN_C_END
CF_IMPLICIT_BRIDGING_DISABLED
#endif /* ! __COREFOUNDATION_CFCHARACTERSET__ */
|
