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393 lines
18 KiB
C
393 lines
18 KiB
C
/* CFCharacterSet.h
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Copyright (c) 1999-2003, Apple, Inc. All rights reserved.
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*/
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/*!
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@header CFCharacterSet
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CFCharacterSet represents a set, or a bag, of Unicode characters.
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The API consists of 3 groups:
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1) creation/manipulation of CFCharacterSet instances,
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2) query of a single Unicode character membership,
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and 3) bitmap representation related (reading/writing).
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Conceptually, CFCharacterSet is a 136K byte bitmap array of
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which each bit represents a Unicode code point. It could
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contain the Unicode characters in ISO 10646 Basic Multilingual
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Plane (BMP) and characters in Plane 1 through Plane 16
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accessible via surrogate paris in the Unicode Transformation
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Format, 16-bit encoding form (UTF-16). In other words, it can
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store values from 0x00000 to 0x10FFFF in the Unicode
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Transformation Format, 32-bit encoding form (UTF-32). However,
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in general, how CFCharacterSet stores the information is an
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implementation detail. Note even CFData used for the external
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bitmap representation rarely has 136K byte. For detailed
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discussion of the external bitmap representation, refer to the
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comments for CFCharacterSetCreateWithBitmapRepresentation below.
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Note that the existance of non-BMP characters in a character set
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does not imply the membership of the corresponding surrogate
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characters. For example, a character set with U+10000 does not
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match with U+D800.
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*/
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#if !defined(__COREFOUNDATION_CFCHARACTERSET__)
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#define __COREFOUNDATION_CFCHARACTERSET__ 1
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#include <CoreFoundation/CFBase.h>
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#include <CoreFoundation/CFData.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/*!
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@typedef CFCharacterSetRef
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This is the type of a reference to immutable CFCharacterSets.
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*/
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typedef const struct __CFCharacterSet * CFCharacterSetRef;
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/*!
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@typedef CFMutableCharacterSetRef
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This is the type of a reference to mutable CFMutableCharacterSets.
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*/
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typedef struct __CFCharacterSet * CFMutableCharacterSetRef;
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/*!
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@typedef CFCharacterSetPredefinedSet
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Type of the predefined CFCharacterSet selector values.
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*/
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typedef enum {
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kCFCharacterSetControl = 1, /* Control character set (Unicode General Category Cc and Cf) */
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kCFCharacterSetWhitespace, /* Whitespace character set (Unicode General Category Zs and U0009 CHARACTER TABULATION) */
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kCFCharacterSetWhitespaceAndNewline, /* Whitespace and Newline character set (Unicode General Category Z*, U000A ~ U000D, and U0085) */
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kCFCharacterSetDecimalDigit, /* Decimal digit character set */
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kCFCharacterSetLetter, /* Letter character set (Unicode General Category L* & M*) */
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kCFCharacterSetLowercaseLetter, /* Lowercase character set (Unicode General Category Ll) */
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kCFCharacterSetUppercaseLetter, /* Uppercase character set (Unicode General Category Lu and Lt) */
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kCFCharacterSetNonBase, /* Non-base character set (Unicode General Category M*) */
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kCFCharacterSetDecomposable, /* Canonically decomposable character set */
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kCFCharacterSetAlphaNumeric, /* Alpha Numeric character set (Unicode General Category L*, M*, & N*) */
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kCFCharacterSetPunctuation, /* Punctuation character set (Unicode General Category P*) */
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kCFCharacterSetIllegal /* Illegal character set */
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#if MAC_OS_X_VERSION_10_2 <= MAC_OS_X_VERSION_MAX_ALLOWED
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, kCFCharacterSetCapitalizedLetter /* Titlecase character set (Unicode General Category Lt) */
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#endif
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#if MAC_OS_X_VERSION_10_3 <= MAC_OS_X_VERSION_MAX_ALLOWED
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, kCFCharacterSetSymbol /* Symbol character set (Unicode General Category S*) */
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#endif
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} CFCharacterSetPredefinedSet;
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/*!
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@function CFCharacterSetGetTypeID
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Returns the type identifier of all CFCharacterSet instances.
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*/
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CF_EXPORT
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CFTypeID CFCharacterSetGetTypeID(void);
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/*!
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@function CFCharacterSetGetPredefined
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Returns a predefined CFCharacterSet instance.
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@param theSetIdentifier The CFCharacterSetPredefinedSet selector
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which specifies the predefined character set. If the
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value is not in CFCharacterSetPredefinedSet, the behavior
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is undefined.
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@result A reference to the predefined immutable CFCharacterSet.
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This instance is owned by CF.
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*/
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CF_EXPORT
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CFCharacterSetRef CFCharacterSetGetPredefined(CFCharacterSetPredefinedSet theSetIdentifier);
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/*!
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@function CFCharacterSetCreateWithCharactersInRange
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Creates a new immutable character set with the values from the given range.
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@param alloc The CFAllocator which should be used to allocate
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memory for the array and its storage for values. This
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parameter may be NULL in which case the current default
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CFAllocator is used. If this reference is not a valid
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CFAllocator, the behavior is undefined.
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@param theRange The CFRange which should be used to specify the
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Unicode range the character set is filled with. It
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accepts the range in 32-bit in the UTF-32 format. The
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valid character point range is from 0x00000 to 0x10FFFF.
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If the range is outside of the valid Unicode character
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point, the behavior is undefined.
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@result A reference to the new immutable CFCharacterSet.
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*/
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CF_EXPORT
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CFCharacterSetRef CFCharacterSetCreateWithCharactersInRange(CFAllocatorRef alloc, CFRange theRange);
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/*!
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@function CFCharacterSetCreateWithCharactersInString
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Creates a new immutable character set with the values in the given string.
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@param alloc The CFAllocator which should be used to allocate
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memory for the array and its storage for values. This
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parameter may be NULL in which case the current default
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CFAllocator is used. If this reference is not a valid
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CFAllocator, the behavior is undefined.
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@param theString The CFString which should be used to specify
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the Unicode characters the character set is filled with.
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If this parameter is not a valid CFString, the behavior
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is undefined.
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@result A reference to the new immutable CFCharacterSet.
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*/
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CF_EXPORT
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CFCharacterSetRef CFCharacterSetCreateWithCharactersInString(CFAllocatorRef alloc, CFStringRef theString);
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/*!
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@function CFCharacterSetCreateWithBitmapRepresentation
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Creates a new immutable character set with the bitmap representtion in the given data.
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@param alloc The CFAllocator which should be used to allocate
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memory for the array and its storage for values. This
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parameter may be NULL in which case the current default
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CFAllocator is used. If this reference is not a valid
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CFAllocator, the behavior is undefined.
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@param theData The CFData which should be used to specify the
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bitmap representation of the Unicode character points
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the character set is filled with. The bitmap
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representation could contain all the Unicode character
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range starting from BMP to Plane 16. The first 8K bytes
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of the data represents the BMP range. The BMP range 8K
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bytes can be followed by zero to sixteen 8K byte
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bitmaps, each one with the plane index byte prepended.
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For example, the bitmap representing the BMP and Plane 2
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has the size of 16385 bytes (8K bytes for BMP, 1 byte
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index + 8K bytes bitmap for Plane 2). The plane index
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byte, in this case, contains the integer value two. If
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this parameter is not a valid CFData or it contains a
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Plane index byte outside of the valid Plane range
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(1 to 16), the behavior is undefined.
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@result A reference to the new immutable CFCharacterSet.
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*/
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CF_EXPORT
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CFCharacterSetRef CFCharacterSetCreateWithBitmapRepresentation(CFAllocatorRef alloc, CFDataRef theData);
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#if MAC_OS_X_VERSION_10_2 <= MAC_OS_X_VERSION_MAX_ALLOWED
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/*!
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@function CFCharacterSetCreateInvertedSet
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Creates a new immutable character set that is the invert of the specified character set.
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@param alloc The CFAllocator which should be used to allocate
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memory for the array and its storage for values. This
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parameter may be NULL in which case the current default
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CFAllocator is used. If this reference is not a valid
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CFAllocator, the behavior is undefined.
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@param theSet The CFCharacterSet which is to be inverted. If this
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parameter is not a valid CFCharacterSet, the behavior is
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undefined.
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@result A reference to the new immutable CFCharacterSet.
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*/
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CF_EXPORT CFCharacterSetRef CFCharacterSetCreateInvertedSet(CFAllocatorRef alloc, CFCharacterSetRef theSet);
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/*!
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@function CFCharacterSetIsSupersetOfSet
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Reports whether or not the character set is a superset of the character set specified as the second parameter.
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@param theSet The character set to be checked for the membership of theOtherSet.
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If this parameter is not a valid CFCharacterSet, the behavior is undefined.
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@param theOtherset The character set to be checked whether or not it is a subset of theSet.
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If this parameter is not a valid CFCharacterSet, the behavior is undefined.
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*/
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CF_EXPORT Boolean CFCharacterSetIsSupersetOfSet(CFCharacterSetRef theSet, CFCharacterSetRef theOtherset);
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/*!
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@function CFCharacterSetHasMemberInPlane
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Reports whether or not the character set contains at least one member character in the specified plane.
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@param theSet The character set to be checked for the membership. If this
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parameter is not a valid CFCharacterSet, the behavior is undefined.
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@param thePlane The plane number to be checked for the membership.
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The valid value range is from 0 to 16. If the value is outside of the valid
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plane number range, the behavior is undefined.
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*/
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CF_EXPORT Boolean CFCharacterSetHasMemberInPlane(CFCharacterSetRef theSet, CFIndex thePlane);
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#endif
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/*!
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@function CFCharacterSetCreateMutable
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Creates a new empty mutable character set.
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@param allocator The CFAllocator which should be used to allocate
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memory for the array and its storage for values. This
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parameter may be NULL in which case the current default
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CFAllocator is used. If this reference is not a valid
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CFAllocator, the behavior is undefined.
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@result A reference to the new mutable CFCharacterSet.
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*/
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CF_EXPORT
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CFMutableCharacterSetRef CFCharacterSetCreateMutable(CFAllocatorRef alloc);
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#if MAC_OS_X_VERSION_10_3 <= MAC_OS_X_VERSION_MAX_ALLOWED
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/*!
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@function CFCharacterSetCreateCopy
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Creates a new character set with the values from the given character set. This function tries to compact the backing store where applicable.
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@param allocator The CFAllocator which should be used to allocate
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memory for the array and its storage for values. This
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parameter may be NULL in which case the current default
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CFAllocator is used. If this reference is not a valid
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CFAllocator, the behavior is undefined.
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@param theSet The CFCharacterSet which is to be copied. If this
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parameter is not a valid CFCharacterSet, the behavior is
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undefined.
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@result A reference to the new CFCharacterSet.
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*/
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CF_EXPORT
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CFCharacterSetRef CFCharacterSetCreateCopy(CFAllocatorRef alloc, CFCharacterSetRef theSet) AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER;
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#endif /* MAC_OS_X_VERSION_10_3 <= MAC_OS_X_VERSION_MAX_ALLOWED */
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/*!
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@function CFCharacterSetCreateMutableCopy
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Creates a new mutable character set with the values from the given character set.
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@param allocator The CFAllocator which should be used to allocate
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memory for the array and its storage for values. This
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parameter may be NULL in which case the current default
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CFAllocator is used. If this reference is not a valid
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CFAllocator, the behavior is undefined.
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@param theSet The CFCharacterSet which is to be copied. If this
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parameter is not a valid CFCharacterSet, the behavior is
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undefined.
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@result A reference to the new mutable CFCharacterSet.
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*/
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CF_EXPORT
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CFMutableCharacterSetRef CFCharacterSetCreateMutableCopy(CFAllocatorRef alloc, CFCharacterSetRef theSet);
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/*!
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@function CFCharacterSetIsCharacterMember
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Reports whether or not the Unicode character is in the character set.
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@param theSet The character set to be searched. If this parameter
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is not a valid CFCharacterSet, the behavior is undefined.
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@param theChar The Unicode character for which to test against the
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character set. Note that this function takes 16-bit Unicode
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character value; hence, it does not support access to the
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non-BMP planes.
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@result true, if the value is in the character set, otherwise false.
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*/
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CF_EXPORT
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Boolean CFCharacterSetIsCharacterMember(CFCharacterSetRef theSet, UniChar theChar);
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#if MAC_OS_X_VERSION_10_2 <= MAC_OS_X_VERSION_MAX_ALLOWED
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/*!
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@function CFCharacterSetIsLongCharacterMember
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Reports whether or not the UTF-32 character is in the character set.
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@param theSet The character set to be searched. If this parameter
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is not a valid CFCharacterSet, the behavior is undefined.
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@param theChar The UTF-32 character for which to test against the
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character set.
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@result true, if the value is in the character set, otherwise false.
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*/
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CF_EXPORT Boolean CFCharacterSetIsLongCharacterMember(CFCharacterSetRef theSet, UTF32Char theChar);
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#endif
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/*!
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@function CFCharacterSetCreateBitmapRepresentation
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Creates a new immutable data with the bitmap representation from the given character set.
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@param allocator The CFAllocator which should be used to allocate
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memory for the array and its storage for values. This
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parameter may be NULL in which case the current default
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CFAllocator is used. If this reference is not a valid
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CFAllocator, the behavior is undefined.
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@param theSet The CFCharacterSet which is to be used create the
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bitmap representation from. Refer to the comments for
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CFCharacterSetCreateWithBitmapRepresentation for the
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detailed discussion of the bitmap representation format.
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If this parameter is not a valid CFCharacterSet, the
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behavior is undefined.
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@result A reference to the new immutable CFData.
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*/
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CF_EXPORT
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CFDataRef CFCharacterSetCreateBitmapRepresentation(CFAllocatorRef alloc, CFCharacterSetRef theSet);
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/*!
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@function CFCharacterSetAddCharactersInRange
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Adds the given range to the charaacter set.
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@param theSet The character set to which the range is to be added.
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If this parameter is not a valid mutable CFCharacterSet,
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the behavior is undefined.
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@param theRange The range to add to the character set. It accepts
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the range in 32-bit in the UTF-32 format. The valid
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character point range is from 0x00000 to 0x10FFFF. If the
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range is outside of the valid Unicode character point,
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the behavior is undefined.
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*/
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CF_EXPORT
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void CFCharacterSetAddCharactersInRange(CFMutableCharacterSetRef theSet, CFRange theRange);
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/*!
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@function CFCharacterSetRemoveCharactersInRange
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Removes the given range from the charaacter set.
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@param theSet The character set from which the range is to be
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removed. If this parameter is not a valid mutable
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CFCharacterSet, the behavior is undefined.
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@param theRange The range to remove from the character set.
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It accepts the range in 32-bit in the UTF-32 format.
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The valid character point range is from 0x00000 to 0x10FFFF.
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If the range is outside of the valid Unicode character point,
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the behavior is undefined.
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*/
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CF_EXPORT
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void CFCharacterSetRemoveCharactersInRange(CFMutableCharacterSetRef theSet, CFRange theRange);
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/*!
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@function CFCharacterSetAddCharactersInString
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Adds the characters in the given string to the charaacter set.
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@param theSet The character set to which the characters in the
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string are to be added. If this parameter is not a
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valid mutable CFCharacterSet, the behavior is undefined.
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@param theString The string to add to the character set.
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If this parameter is not a valid CFString, the behavior
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is undefined.
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*/
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CF_EXPORT
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void CFCharacterSetAddCharactersInString(CFMutableCharacterSetRef theSet, CFStringRef theString);
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/*!
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@function CFCharacterSetRemoveCharactersInString
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Removes the characters in the given string from the charaacter set.
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@param theSet The character set from which the characters in the
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string are to be remove. If this parameter is not a
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valid mutable CFCharacterSet, the behavior is undefined.
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@param theString The string to remove from the character set.
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If this parameter is not a valid CFString, the behavior
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is undefined.
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*/
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CF_EXPORT
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void CFCharacterSetRemoveCharactersInString(CFMutableCharacterSetRef theSet, CFStringRef theString);
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/*!
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@function CFCharacterSetUnion
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Forms the union with the given character set.
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@param theSet The destination character set into which the
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union of the two character sets is stored. If this
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parameter is not a valid mutable CFCharacterSet, the
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behavior is undefined.
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@param theOtherSet The character set with which the union is
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formed. If this parameter is not a valid CFCharacterSet,
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the behavior is undefined.
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*/
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CF_EXPORT
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void CFCharacterSetUnion(CFMutableCharacterSetRef theSet, CFCharacterSetRef theOtherSet);
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/*!
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@function CFCharacterSetIntersect
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Forms the intersection with the given character set.
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@param theSet The destination character set into which the
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intersection of the two character sets is stored.
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If this parameter is not a valid mutable CFCharacterSet,
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the behavior is undefined.
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@param theOtherSet The character set with which the intersection
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is formed. If this parameter is not a valid CFCharacterSet,
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the behavior is undefined.
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*/
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CF_EXPORT
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void CFCharacterSetIntersect(CFMutableCharacterSetRef theSet, CFCharacterSetRef theOtherSet);
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/*!
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@function CFCharacterSetInvert
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Inverts the content of the given character set.
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@param theSet The character set to be inverted.
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If this parameter is not a valid mutable CFCharacterSet,
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the behavior is undefined.
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*/
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CF_EXPORT
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void CFCharacterSetInvert(CFMutableCharacterSetRef theSet);
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#if defined(__cplusplus)
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}
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#endif
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#endif /* !__COREFOUNDATION_CFCHARACTERSET__ */
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