/*
* Copyright (c) 2008-2023 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#ifndef OBJFW_OF_STRING_H
#define OBJFW_OF_STRING_H
#ifndef __STDC_LIMIT_MACROS
# define __STDC_LIMIT_MACROS
#endif
#ifndef __STDC_CONSTANT_MACROS
# define __STDC_CONSTANT_MACROS
#endif
#include "objfw-defs.h"
#ifdef OF_HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <stdarg.h>
#include <stdint.h>
#ifdef OF_HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#include "OFObject.h"
#ifdef __OBJC__
# import "OFJSONRepresentation.h"
# import "OFMessagePackRepresentation.h"
#endif
OF_ASSUME_NONNULL_BEGIN
/** @file */
#ifdef __OBJC__
@class OFConstantString;
@class OFString;
#else
typedef void OFString;
#endif
#if defined(__cplusplus) && __cplusplus >= 201103L
typedef char16_t OFChar16;
typedef char32_t OFChar32;
#else
typedef uint_least16_t OFChar16;
typedef uint_least32_t OFChar32;
#endif
typedef OFChar32 OFUnichar;
/**
* @brief The encoding of a string.
*/
typedef enum {
/*
* UTF-8 *has* to be 0, so that if the current @ref OFLocale is
* `nil`, `[OFLocale encoding]` returns UTF-8.
*/
/** UTF-8 */
OFStringEncodingUTF8,
/** ASCII */
OFStringEncodingASCII,
/** ISO 8859-1 */
OFStringEncodingISO8859_1,
/** ISO 8859-2 */
OFStringEncodingISO8859_2,
/** ISO 8859-3 */
OFStringEncodingISO8859_3,
/** ISO 8859-15 */
OFStringEncodingISO8859_15,
/** Windows-1251 */
OFStringEncodingWindows1251,
/** Windows-1252 */
OFStringEncodingWindows1252,
/** Codepage 437 */
OFStringEncodingCodepage437,
/** Codepage 850 */
OFStringEncodingCodepage850,
/** Codepage 858 */
OFStringEncodingCodepage858,
/** Mac OS Roman */
OFStringEncodingMacRoman,
/** KOI8-R */
OFStringEncodingKOI8R,
/** KOI8-U */
OFStringEncodingKOI8U,
/** Try to automatically detect the encoding */
OFStringEncodingAutodetect = -1
} OFStringEncoding;
/**
* @brief Options for searching in strings.
*
* This is a bit mask.
*/
typedef enum {
/** Search backwards in the string */
OFStringSearchBackwards = 1
} OFStringSearchOptions;
/**
* @brief Options for separating strings.
*
* This is a bit mask.
*/
typedef enum {
/** Skip empty components */
OFStringSkipEmptyComponents = 1
} OFStringSeparationOptions;
#ifdef OF_HAVE_BLOCKS
/**
* @brief A block for enumerating the lines of a string.
*
* @param line The current line
* @param stop A pointer to a variable that can be set to true to stop the
* enumeration
*/
typedef void (^OFStringLineEnumerationBlock)(OFString *line, bool *stop);
#endif
#ifdef __OBJC__
@class OFArray OF_GENERIC(ObjectType);
@class OFCharacterSet;
@class OFIRI;
/**
* @class OFString OFString.h ObjFW/OFString.h
*
* @brief A class for handling strings.
*/
@interface OFString: OFObject <OFCopying, OFMutableCopying, OFComparing,
OFJSONRepresentation, OFMessagePackRepresentation>
/**
* @brief The length of the string in Unicode codepoints.
*/
@property (readonly, nonatomic) size_t length;
/**
* @brief The OFString as a UTF-8 encoded C string.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*/
@property (readonly, nonatomic) const char *UTF8String;
/**
* @brief The number of bytes the string needs in UTF-8 encoding.
*/
@property (readonly, nonatomic) size_t UTF8StringLength;
/**
* @brief The string in uppercase.
*/
@property (readonly, nonatomic) OFString *uppercaseString;
/**
* @brief The string in lowercase.
*/
@property (readonly, nonatomic) OFString *lowercaseString;
/**
* @brief The string in capitalized form.
*
* @note This only considers spaces, tabs and newlines to be word delimiters!
* Also note that this might change in the future to all word delimiters
* specified by Unicode!
*/
@property (readonly, nonatomic) OFString *capitalizedString;
/**
* @brief The decimal value of the string as a `long long`.
*
* Leading and trailing whitespaces are ignored.
*
* If the string contains any non-number characters, an
* @ref OFInvalidFormatException is thrown.
*
* If the number is too big to fit into a `long long`, an
* @ref OFOutOfRangeException is thrown.
*/
@property (readonly, nonatomic) long long longLongValue;
/**
* @brief The decimal value of the string as an `unsigned long long`.
*
* Leading and trailing whitespaces are ignored.
*
* If the string contains any non-number characters, an
* @ref OFInvalidFormatException is thrown.
*
* If the number is too big to fit into an `unsigned long long`, an
* @ref OFOutOfRangeException is thrown.
*/
@property (readonly, nonatomic) unsigned long long unsignedLongLongValue;
/**
* @brief The float value of the string as a float.
*
* @throw OFInvalidFormatException The string cannot be parsed as a `float`
* @throw OFOutOfRangeException The value cannot be represented as a `float`
*/
@property (readonly, nonatomic) float floatValue;
/**
* @brief The double value of the string as a double.
*
* @throw OFInvalidFormatException The string cannot be parsed as a `double`
* @throw OFOutOfRangeException The value cannot be represented as a `double`
*/
@property (readonly, nonatomic) double doubleValue;
/**
* @brief The string as an array of Unicode characters.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*
* The returned string is *not* null-terminated.
*/
@property (readonly, nonatomic) const OFUnichar *characters;
/**
* @brief The string in UTF-16 encoding with native byte order.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*
* The returned string is null-terminated.
*/
@property (readonly, nonatomic) const OFChar16 *UTF16String;
/**
* @brief The length of the string in UTF-16 characters.
*/
@property (readonly, nonatomic) size_t UTF16StringLength;
/**
* @brief The string in UTF-32 encoding with native byte order.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*
* The returned string is null-terminated.
*/
@property (readonly, nonatomic) const OFChar32 *UTF32String;
/**
* @brief The string with leading whitespaces deleted.
*/
@property (readonly, nonatomic) OFString *stringByDeletingLeadingWhitespaces;
/**
* @brief The string with trailing whitespaces deleted.
*/
@property (readonly, nonatomic) OFString *stringByDeletingTrailingWhitespaces;
/**
* @brief The string with leading and trailing whitespaces deleted.
*/
@property (readonly, nonatomic) OFString *stringByDeletingEnclosingWhitespaces;
# ifdef OF_HAVE_UNICODE_TABLES
/**
* @brief The string in Unicode Normalization Form D (NFD).
*/
@property (readonly, nonatomic) OFString *decomposedStringWithCanonicalMapping;
/**
* @brief The string in Unicode Normalization Form KD (NFKD).
*/
@property (readonly, nonatomic)
OFString *decomposedStringWithCompatibilityMapping;
# endif
# ifdef OF_WINDOWS
/**
* @brief The string with the Windows Environment Strings expanded.
*/
@property (readonly, nonatomic)
OFString *stringByExpandingWindowsEnvironmentStrings;
# endif
/**
* @brief Creates a new OFString.
*
* @return A new, autoreleased OFString
*/
+ (instancetype)string;
/**
* @brief Creates a new OFString from a UTF-8 encoded C string.
*
* @param UTF8String A UTF-8 encoded C string to initialize the OFString with
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
+ (instancetype)stringWithUTF8String: (const char *)UTF8String;
/**
* @brief Creates a new OFString from a UTF-8 encoded C string with the
* specified length.
*
* @param UTF8String A UTF-8 encoded C string to initialize the OFString with
* @param UTF8StringLength The length of the UTF-8 encoded C string
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
+ (instancetype)stringWithUTF8String: (const char *)UTF8String
length: (size_t)UTF8StringLength;
/**
* @brief Creates a new OFString from a UTF-8 encoded C string without copying
* the string, if possible.
*
* If initialization fails for whatever reason, the passed C string is *not*
* free'd if `freeWhenDone` is true.
*
* @note OFMutableString always creates a copy!
*
* @param UTF8String A UTF-8 encoded C string to initialize the OFString with
* @param freeWhenDone Whether to free the C string when the OFString gets
* deallocated
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
+ (instancetype)stringWithUTF8StringNoCopy: (char *)UTF8String
freeWhenDone: (bool)freeWhenDone;
/**
* @brief Creates a new OFString from a UTF-8 encoded C string with the
* specified length without copying the string, if possible.
*
* If initialization fails for whatever reason, the passed C string is *not*
* free'd if `freeWhenDone` is true.
*
* @note OFMutableString always creates a copy!
*
* @param UTF8String A UTF-8 encoded C string to initialize the OFString with
* @param UTF8StringLength The length of the UTF-8 encoded C string
* @param freeWhenDone Whether to free the C string when the OFString gets
* deallocated
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
+ (instancetype)stringWithUTF8StringNoCopy: (char *)UTF8String
length: (size_t)UTF8StringLength
freeWhenDone: (bool)freeWhenDone;
/**
* @brief Creates a new OFString from a C string with the specified encoding.
*
* @param cString A C string to initialize the OFString with
* @param encoding The encoding of the C string
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
+ (instancetype)stringWithCString: (const char *)cString
encoding: (OFStringEncoding)encoding;
/**
* @brief Creates a new OFString from a C string with the specified encoding
* and length.
*
* @param cString A C string to initialize the OFString with
* @param encoding The encoding of the C string
* @param cStringLength The length of the C string
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
+ (instancetype)stringWithCString: (const char *)cString
encoding: (OFStringEncoding)encoding
length: (size_t)cStringLength;
/**
* @brief Creates a new OFString from OFData with the specified encoding.
*
* @param data OFData with the contents of the string
* @param encoding The encoding in which the string is stored in the OFData
* @return An new autoreleased OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
+ (instancetype)stringWithData: (OFData *)data
encoding: (OFStringEncoding)encoding;
/**
* @brief Creates a new OFString from another string.
*
* @param string A string to initialize the OFString with
* @return A new autoreleased OFString
*/
+ (instancetype)stringWithString: (OFString *)string;
/**
* @brief Creates a new OFString from a Unicode string with the specified
* length.
*
* @param characters An array of Unicode characters
* @param length The length of the Unicode character array
* @return A new autoreleased OFString
*/
+ (instancetype)stringWithCharacters: (const OFUnichar *)characters
length: (size_t)length;
/**
* @brief Creates a new OFString from a UTF-16 encoded string.
*
* @param string A zero-terminated UTF-16 string
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-16-encoded
*/
+ (instancetype)stringWithUTF16String: (const OFChar16 *)string;
/**
* @brief Creates a new OFString from a UTF-16 encoded string with the
* specified length.
*
* @param string A zero-terminated UTF-16 string
* @param length The length of the UTF-16 string
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-16-encoded
*/
+ (instancetype)stringWithUTF16String: (const OFChar16 *)string
length: (size_t)length;
/**
* @brief Creates a new OFString from a UTF-16 encoded string, assuming the
* specified byte order if no byte order mark is found.
*
* @param string A zero-terminated UTF-16 string
* @param byteOrder The byte order to assume if there is no byte order mark
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-16-encoded
*/
+ (instancetype)stringWithUTF16String: (const OFChar16 *)string
byteOrder: (OFByteOrder)byteOrder;
/**
* @brief Creates a new OFString from a UTF-16 encoded string with the
* specified length, assuming the specified byte order if no byte order
* mark is found.
*
* @param string A zero-terminated UTF-16 string
* @param length The length of the UTF-16 string
* @param byteOrder The byte order to assume if there is no byte order mark
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-16-encoded
*/
+ (instancetype)stringWithUTF16String: (const OFChar16 *)string
length: (size_t)length
byteOrder: (OFByteOrder)byteOrder;
/**
* @brief Creates a new OFString from a UTF-32 encoded string.
*
* @param string A zero-terminated UTF-32 string
* @return A new autoreleased OFString
*/
+ (instancetype)stringWithUTF32String: (const OFChar32 *)string;
/**
* @brief Creates a new OFString from a UTF-32 encoded string with the
* specified length.
*
* @param string A zero-terminated UTF-32 string
* @param length The length of the UTF-32 string
* @return A new autoreleased OFString
*/
+ (instancetype)stringWithUTF32String: (const OFChar32 *)string
length: (size_t)length;
/**
* @brief Creates a new OFString from a UTF-32 encoded string, assuming the
* specified byte order if no byte order mark is found.
*
* @param string A zero-terminated UTF-32 string
* @param byteOrder The byte order to assume if there is no byte order mark
* @return A new autoreleased OFString
*/
+ (instancetype)stringWithUTF32String: (const OFChar32 *)string
byteOrder: (OFByteOrder)byteOrder;
/**
* @brief Creates a new OFString from a UTF-32 encoded string with the
* specified length, assuming the specified byte order if no byte order
* mark is found.
*
* @param string A zero-terminated UTF-32 string
* @param length The length of the UTF-32 string
* @param byteOrder The byte order to assume if there is no byte order mark
* @return A new autoreleased OFString
*/
+ (instancetype)stringWithUTF32String: (const OFChar32 *)string
length: (size_t)length
byteOrder: (OFByteOrder)byteOrder;
/**
* @brief Creates a new OFString from a format string.
*
* See printf for the format syntax. As an addition, `%@` is available as
* format specifier for objects, `%C` for `OFUnichar` and `%S` for
* `const OFUnichar *`.
*
* @param format A string used as format to initialize the OFString
* @return A new autoreleased OFString
* @throw OFInvalidFormatException The specified format is invalid
* @throw OFInvalidEncodingException The resulting string is not in not in UTF-8
* encoding
*/
+ (instancetype)stringWithFormat: (OFConstantString *)format, ...;
# ifdef OF_HAVE_FILES
/**
* @brief Creates a new OFString with the contents of the specified UTF-8
* encoded file.
*
* @param path The path to the file
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
+ (instancetype)stringWithContentsOfFile: (OFString *)path;
/**
* @brief Creates a new OFString with the contents of the specified file in the
* specified encoding.
*
* @param path The path to the file
* @param encoding The encoding of the file
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
+ (instancetype)stringWithContentsOfFile: (OFString *)path
encoding: (OFStringEncoding)encoding;
# endif
/**
* @brief Creates a new OFString with the contents of the specified IRI.
*
* If the IRI's scheme is file, it tries UTF-8 encoding.
*
* If the IRI's scheme is http(s), it tries to detect the encoding from the HTTP
* headers. If it could not detect the encoding using the HTTP headers, it tries
* UTF-8.
*
* @param IRI The IRI to the contents for the string
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not in the expected encoding
*/
+ (instancetype)stringWithContentsOfIRI: (OFIRI *)IRI;
/**
* @brief Creates a new OFString with the contents of the specified IRI in the
* specified encoding.
*
* @param IRI The IRI to the contents for the string
* @param encoding The encoding to assume
* @return A new autoreleased OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
+ (instancetype)stringWithContentsOfIRI: (OFIRI *)IRI
encoding: (OFStringEncoding)encoding;
/**
* @brief Initializes an already allocated OFString from a UTF-8 encoded C
* string.
*
* @param UTF8String A UTF-8 encoded C string to initialize the OFString with
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
- (instancetype)initWithUTF8String: (const char *)UTF8String;
/**
* @brief Initializes an already allocated OFString from a UTF-8 encoded C
* string with the specified length.
*
* @param UTF8String A UTF-8 encoded C string to initialize the OFString with
* @param UTF8StringLength The length of the UTF-8 encoded C string
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
- (instancetype)initWithUTF8String: (const char *)UTF8String
length: (size_t)UTF8StringLength;
/**
* @brief Initializes an already allocated OFString from an UTF-8 encoded C
* string without copying the string, if possible.
*
* If initialization fails for whatever reason, the passed C string is *not*
* free'd if `freeWhenDone` is true.
*
* @note OFMutableString always creates a copy!
*
* @param UTF8String A UTF-8 encoded C string to initialize the OFString with
* @param freeWhenDone Whether to free the C string when it is not needed
* anymore
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
- (instancetype)initWithUTF8StringNoCopy: (char *)UTF8String
freeWhenDone: (bool)freeWhenDone;
/**
* @brief Initializes an already allocated OFString from an UTF-8 encoded C
* string with the specified length without copying the string, if
* possible.
*
* If initialization fails for whatever reason, the passed C string is *not*
* free'd if `freeWhenDone` is true.
*
* @note OFMutableString always creates a copy!
*
* @param UTF8String A UTF-8 encoded C string to initialize the OFString with
* @param UTF8StringLength The length of the UTF-8 encoded C string
* @param freeWhenDone Whether to free the C string when it is not needed
* anymore
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
- (instancetype)initWithUTF8StringNoCopy: (char *)UTF8String
length: (size_t)UTF8StringLength
freeWhenDone: (bool)freeWhenDone;
/**
* @brief Initializes an already allocated OFString from a C string with the
* specified encoding.
*
* @param cString A C string to initialize the OFString with
* @param encoding The encoding of the C string
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
- (instancetype)initWithCString: (const char *)cString
encoding: (OFStringEncoding)encoding;
/**
* @brief Initializes an already allocated OFString from a C string with the
* specified encoding and length.
*
* @param cString A C string to initialize the OFString with
* @param encoding The encoding of the C string
* @param cStringLength The length of the C string
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
- (instancetype)initWithCString: (const char *)cString
encoding: (OFStringEncoding)encoding
length: (size_t)cStringLength;
/**
* @brief Initializes an already allocated OFString from OFData with the
* specified encoding.
*
* @param data OFData with the contents of the string
* @param encoding The encoding in which the string is stored in the OFData
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
- (instancetype)initWithData: (OFData *)data
encoding: (OFStringEncoding)encoding;
/**
* @brief Initializes an already allocated OFString with another string.
*
* @param string A string to initialize the OFString with
* @return An initialized OFString
*/
- (instancetype)initWithString: (OFString *)string;
/**
* @brief Initializes an already allocated OFString with a Unicode string with
* the specified length.
*
* @param characters An array of Unicode characters
* @param length The length of the Unicode character array
* @return An initialized OFString
*/
- (instancetype)initWithCharacters: (const OFUnichar *)characters
length: (size_t)length;
/**
* @brief Initializes an already allocated OFString with a UTF-16 string.
*
* @param string A zero-terminated UTF-16 string
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-16-encoded
*/
- (instancetype)initWithUTF16String: (const OFChar16 *)string;
/**
* @brief Initializes an already allocated OFString with a UTF-16 string with
* the specified length.
*
* @param string A zero-terminated UTF-16 string
* @param length The length of the UTF-16 string
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-16-encoded
*/
- (instancetype)initWithUTF16String: (const OFChar16 *)string
length: (size_t)length;
/**
* @brief Initializes an already allocated OFString with a UTF-16 string,
* assuming the specified byte order if no byte order mark is found.
*
* @param string A zero-terminated UTF-16 string
* @param byteOrder The byte order to assume if there is no byte order mark
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-16-encoded
*/
- (instancetype)initWithUTF16String: (const OFChar16 *)string
byteOrder: (OFByteOrder)byteOrder;
/**
* @brief Initializes an already allocated OFString with a UTF-16 string with
* the specified length, assuming the specified byte order if no byte
* order mark is found.
*
* @param string A zero-terminated UTF-16 string
* @param length The length of the UTF-16 string
* @param byteOrder The byte order to assume if there is no byte order mark
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-16-encoded
*/
- (instancetype)initWithUTF16String: (const OFChar16 *)string
length: (size_t)length
byteOrder: (OFByteOrder)byteOrder;
/**
* @brief Initializes an already allocated OFString with a UTF-32 string.
*
* @param string A zero-terminated UTF-32 string
* @return An initialized OFString
*/
- (instancetype)initWithUTF32String: (const OFChar32 *)string;
/**
* @brief Initializes an already allocated OFString with a UTF-32 string with
* the specified length
*
* @param string A zero-terminated UTF-32 string
* @param length The length of the UTF-32 string
* @return An initialized OFString
*/
- (instancetype)initWithUTF32String: (const OFChar32 *)string
length: (size_t)length;
/**
* @brief Initializes an already allocated OFString with a UTF-32 string,
* assuming the specified byte order if no byte order mark is found.
*
* @param string A zero-terminated UTF-32 string
* @param byteOrder The byte order to assume if there is no byte order mark
* @return An initialized OFString
*/
- (instancetype)initWithUTF32String: (const OFChar32 *)string
byteOrder: (OFByteOrder)byteOrder;
/**
* @brief Initializes an already allocated OFString with a UTF-32 string with
* the specified length, assuming the specified byte order if no byte
* order mark is found.
*
* @param string A zero-terminated UTF-32 string
* @param length The length of the UTF-32 string
* @param byteOrder The byte order to assume if there is no byte order mark
* @return An initialized OFString
*/
- (instancetype)initWithUTF32String: (const OFChar32 *)string
length: (size_t)length
byteOrder: (OFByteOrder)byteOrder;
/**
* @brief Initializes an already allocated OFString with a format string.
*
* See printf for the format syntax. As an addition, `%@` is available as
* format specifier for objects, `%C` for `OFUnichar` and `%S` for
* `const OFUnichar *`.
*
* @param format A string used as format to initialize the OFString
* @return An initialized OFString
* @throw OFInvalidFormatException The specified format is invalid
* @throw OFInvalidEncodingException The resulting string is not in not in UTF-8
* encoding
*/
- (instancetype)initWithFormat: (OFConstantString *)format, ...;
/**
* @brief Initializes an already allocated OFString with a format string.
*
* See printf for the format syntax. As an addition, `%@` is available as
* format specifier for objects, `%C` for `OFUnichar` and `%S` for
* `const OFUnichar *`.
*
* @param format A string used as format to initialize the OFString
* @param arguments The arguments used in the format string
* @return An initialized OFString
* @throw OFInvalidFormatException The specified format is invalid
* @throw OFInvalidEncodingException The resulting string is not in not in UTF-8
* encoding
*/
- (instancetype)initWithFormat: (OFConstantString *)format
arguments: (va_list)arguments;
# ifdef OF_HAVE_FILES
/**
* @brief Initializes an already allocated OFString with the contents of the
* specified file in the specified encoding.
*
* @param path The path to the file
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not properly UTF-8-encoded
*/
- (instancetype)initWithContentsOfFile: (OFString *)path;
/**
* @brief Initializes an already allocated OFString with the contents of the
* specified file in the specified encoding.
*
* @param path The path to the file
* @param encoding The encoding of the file
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
- (instancetype)initWithContentsOfFile: (OFString *)path
encoding: (OFStringEncoding)encoding;
# endif
/**
* @brief Initializes an already allocated OFString with the contents of the
* specified IRI.
*
* If the IRI's scheme is file, it tries UTF-8 encoding.
*
* If the IRI's scheme is http(s), it tries to detect the encoding from the HTTP
* headers. If it could not detect the encoding using the HTTP headers, it tries
* UTF-8.
*
* @param IRI The IRI to the contents for the string
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not in the expected encoding
*/
- (instancetype)initWithContentsOfIRI: (OFIRI *)IRI;
/**
* @brief Initializes an already allocated OFString with the contents of the
* specified IRI in the specified encoding.
*
* @param IRI The IRI to the contents for the string
* @param encoding The encoding to assume
* @return An initialized OFString
* @throw OFInvalidEncodingException The string is not in the specified encoding
*/
- (instancetype)initWithContentsOfIRI: (OFIRI *)IRI
encoding: (OFStringEncoding)encoding;
/**
* @brief Writes the OFString into the specified C string with the specified
* encoding.
*
* @param cString The C string to write into
* @param maxLength The maximum number of bytes to write into the C string,
* including the terminating zero
* @param encoding The encoding to use for writing into the C string
* @return The number of bytes written into the C string, without the
* terminating zero
* @throw OFInvalidEncodingException The string cannot be represented in the
* specified encoding
*/
- (size_t)getCString: (char *)cString
maxLength: (size_t)maxLength
encoding: (OFStringEncoding)encoding;
/**
* @brief Writes the OFString into the specified C string with the specified
* encoding, replacing characters that cannot be represented in the
* specified encoding with a question mark.
*
* @param cString The C string to write into
* @param maxLength The maximum number of bytes to write into the C string,
* including the terminating zero
* @param encoding The encoding to use for writing into the C string
* @return The number of bytes written into the C string, without the
* terminating zero
*/
- (size_t)getLossyCString: (char *)cString
maxLength: (size_t)maxLength
encoding: (OFStringEncoding)encoding;
/**
* @brief Returns the OFString as a C string in the specified encoding.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*
* @param encoding The encoding for the C string
* @return The OFString as a C string in the specified encoding
* @throw OFInvalidEncodingException The string cannot be represented in the
* specified encoding
*/
- (const char *)cStringWithEncoding: (OFStringEncoding)encoding;
/**
* @brief Returns the OFString as a C string in the specified encoding,
* replacing characters that cannot be represented in the specified
* encoding with a question mark.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*
* @param encoding The encoding for the C string
* @return The OFString as a C string in the specified encoding
*/
- (const char *)lossyCStringWithEncoding: (OFStringEncoding)encoding;
/**
* @brief Returns the number of bytes the string needs in the specified
* encoding.
*
* @param encoding The encoding for the string
* @return The number of bytes the string needs in the specified encoding.
* @throw OFInvalidEncodingException The string cannot be represented in the
* specified encoding
*/
- (size_t)cStringLengthWithEncoding: (OFStringEncoding)encoding;
/**
* @brief Compares the string to another string.
*
* @param string The string to compare the string to
* @return The result of the comparison
*/
- (OFComparisonResult)compare: (OFString *)string;
/**
* @brief Compares the string to another string without caring about the case.
*
* @param string The string to compare the string to
* @return The result of the comparison
*/
- (OFComparisonResult)caseInsensitiveCompare: (OFString *)string;
/**
* @brief Returns the Unicode character at the specified index.
*
* @param index The index of the Unicode character to return
* @return The Unicode character at the specified index
*/
- (OFUnichar)characterAtIndex: (size_t)index;
/**
* @brief Copies the Unicode characters in the specified range to the specified
* buffer.
*
* @param buffer The buffer to store the Unicode characters
* @param range The range of the Unicode characters to copy
*/
- (void)getCharacters: (OFUnichar *)buffer inRange: (OFRange)range;
/**
* @brief Returns the range of the first occurrence of the string.
*
* @param string The string to search
* @return The range of the first occurrence of the string or a range with
* `OFNotFound` as start position if it was not found
*/
- (OFRange)rangeOfString: (OFString *)string;
/**
* @brief Returns the range of the string.
*
* @param string The string to search
* @param options Options modifying search behavior
* @return The range of the first occurrence of the string or a range with
* `OFNotFound` as start position if it was not found
*/
- (OFRange)rangeOfString: (OFString *)string
options: (OFStringSearchOptions)options;
/**
* @brief Returns the range of the string in the specified range.
*
* @param string The string to search
* @param options Options modifying search behaviour
* @param range The range in which to search
* @return The range of the first occurrence of the string or a range with
* `OFNotFound` as start position if it was not found
*/
- (OFRange)rangeOfString: (OFString *)string
options: (OFStringSearchOptions)options
range: (OFRange)range;
/**
* @brief Returns the index of the first character from the set.
*
* @param characterSet The set of characters to search for
* @return The index of the first occurrence of a character from the set or
* `OFNotFound` if it was not found
*/
- (size_t)indexOfCharacterFromSet: (OFCharacterSet *)characterSet;
/**
* @brief Returns the index of the first character from the set.
*
* @param characterSet The set of characters to search for
* @param options Options modifying search behaviour
* @return The index of the first occurrence of a character from the set or
* `OFNotFound` if it was not found
*/
- (size_t)indexOfCharacterFromSet: (OFCharacterSet *)characterSet
options: (OFStringSearchOptions)options;
/**
* @brief Returns the index of the first character from the set.
*
* @param characterSet The set of characters to search for
* @param options Options modifying search behaviour
* @param range The range in which to search
* @return The index of the first occurrence of a character from the set or
* `OFNotFound` if it was not found
*/
- (size_t)indexOfCharacterFromSet: (OFCharacterSet *)characterSet
options: (OFStringSearchOptions)options
range: (OFRange)range;
/**
* @brief Returns whether the string contains the specified string.
*
* @param string The string to search
* @return Whether the string contains the specified string
*/
- (bool)containsString: (OFString *)string;
/**
* @brief Creates a substring from the specified index to the end.
*
* @param idx The index from where the substring should start, inclusive
* @return The substring from the specified index to the end
*/
- (OFString *)substringFromIndex: (size_t)idx;
/**
* @brief Creates a substring from the beginning to the specified index.
*
* @param idx The index at which the substring should end, exclusive
* @return The subtring from the beginning to the specified index
*/
- (OFString *)substringToIndex: (size_t)idx;
/**
* @brief Creates a substring with the specified range.
*
* @param range The range of the substring
* @return The substring as a new autoreleased OFString
*/
- (OFString *)substringWithRange: (OFRange)range;
/**
* @brief The value of the string in the specified base as a `long long`.
*
* Leading and trailing whitespaces are ignored.
*
* If the string contains any non-number characters, an
* @ref OFInvalidFormatException is thrown.
*
* If the number is too big to fit into a `long long`, an
* @ref OFOutOfRangeException is thrown.
*
* @param base The base to use. If the base is 0, base 16 is assumed if the
* string starts with 0x (after stripping white spaces). If the
* string starts with 0, base 8 is assumed. Otherwise, base 10 is
* assumed.
* @return The value of the string in the specified base
* @throw OFInvalidFormatException The string cannot be parsed as a `long long`
* @throw OFOutOfRangeException The value cannot be represented as a `long long`
*/
- (long long)longLongValueWithBase: (unsigned char)base;
/**
* @brief The value of the string in the specified base as an
* `unsigned long long`.
*
* Leading and trailing whitespaces are ignored.
*
* If the string contains any non-number characters, an
* @ref OFInvalidFormatException is thrown.
*
* If the number is too big to fit into an `unsigned long long`, an
* @ref OFOutOfRangeException is thrown.
*
* @param base The base to use. If the base is 0, base 16 is assumed if the
* string starts with 0x (after stripping white spaces). If the
* string starts with 0, base 8 is assumed. Otherwise, base 10 is
* assumed.
* @return The value of the string in the specified base
* @throw OFInvalidFormatException The string cannot be parsed as an
* `unsigned long long`
* @throw OFOutOfRangeException The value cannot be represented as an
* `unsigned long long`
*/
- (unsigned long long)unsignedLongLongValueWithBase: (unsigned char)base;
/**
* @brief Creates a new string by appending another string.
*
* @param string The string to append
* @return A new, autoreleased OFString with the specified string appended
*/
- (OFString *)stringByAppendingString: (OFString *)string;
/**
* @brief Creates a new string by appending the specified format.
*
* @param format A format string which generates the string to append
* @return A new, autoreleased OFString with the specified format appended
* @throw OFInvalidEncodingException The string was not properly UTF-8-encoded
* after formatting it
* @throw OFInvalidFormatException The specified format is invalid
*/
- (OFString *)stringByAppendingFormat: (OFConstantString *)format, ...;
/**
* @brief Creates a new string by appending the specified format.
*
* @param format A format string which generates the string to append
* @param arguments The arguments used in the format string
* @return A new, autoreleased OFString with the specified format appended
* @throw OFInvalidEncodingException The string was not properly UTF-8-encoded
* after formatting it
* @throw OFInvalidFormatException The specified format is invalid
*/
- (OFString *)stringByAppendingFormat: (OFConstantString *)format
arguments: (va_list)arguments;
/**
* @brief Creates a new string by replacing the occurrences of the specified
* string with the specified replacement.
*
* @param string The string to replace
* @param replacement The string with which it should be replaced
* @return A new string with the occurrences of the specified string replaced
*/
- (OFString *)stringByReplacingOccurrencesOfString: (OFString *)string
withString: (OFString *)replacement;
/**
* @brief Creates a new string by replacing the occurrences of the specified
* string in the specified range with the specified replacement.
*
* @param string The string to replace
* @param replacement The string with which it should be replaced
* @param options Options modifying search behaviour.
* Possible values are:
* * None yet, pass 0
* @param range The range in which to replace the string
* @return A new string with the occurrences of the specified string replaced
*/
- (OFString *)stringByReplacingOccurrencesOfString: (OFString *)string
withString: (OFString *)replacement
options: (int)options
range: (OFRange)range;
/**
* @brief Checks whether the string has the specified prefix.
*
* @param prefix The prefix to check for
* @return A boolean whether the string has the specified prefix
*/
- (bool)hasPrefix: (OFString *)prefix;
/**
* @brief Checks whether the string has the specified suffix.
*
* @param suffix The suffix to check for
* @return A boolean whether the string has the specified suffix
*/
- (bool)hasSuffix: (OFString *)suffix;
/**
* @brief Separates the string into an array of strings, split by the specified
* delimiter.
*
* @param delimiter The delimiter for separating
* @return An autoreleased OFArray with the separated string
*/
- (OFArray OF_GENERIC(OFString *) *)
componentsSeparatedByString: (OFString *)delimiter;
/**
* @brief Separates the string into an array of strings, split by the specified
* delimiter.
*
* @param delimiter The delimiter for separating
* @param options Options according to which the string should be separated
* @return An autoreleased OFArray with the separated string
*/
- (OFArray OF_GENERIC(OFString *) *)
componentsSeparatedByString: (OFString *)delimiter
options: (OFStringSeparationOptions)options;
/**
* @brief Separates the string into an array of strings, split by characters in
* the specified set.
*
* @param characterSet The character set for separating
* @return An autoreleased OFArray with the separated string
*/
- (OFArray OF_GENERIC(OFString *) *)
componentsSeparatedByCharactersInSet: (OFCharacterSet *)characterSet;
/**
* @brief Separates the string into an array of strings, split by characters in
* the specified set.
*
* @param characterSet The character set for separating
* @param options Options according to which the string should be separated
* @return An autoreleased OFArray with the separated string
*/
- (OFArray OF_GENERIC(OFString *) *)
componentsSeparatedByCharactersInSet: (OFCharacterSet *)characterSet
options: (OFStringSeparationOptions)options;
/**
* @brief Returns the string in UTF-16 encoding with the specified byte order.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*
* The returned string is null-terminated.
*
* @param byteOrder The byte order for the UTF-16 encoding
* @return The string in UTF-16 encoding with the specified byte order
* @throw OFInvalidEncodingException The string cannot be represented in UTF-16
*/
- (const OFChar16 *)UTF16StringWithByteOrder: (OFByteOrder)byteOrder;
/**
* @brief Returns the string in UTF-32 encoding with the specified byte order.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*
* The returned string is null-terminated.
*
* @param byteOrder The byte order for the UTF-32 encoding
* @return The string in UTF-32 encoding with the specified byte order
*/
- (const OFChar32 *)UTF32StringWithByteOrder: (OFByteOrder)byteOrder;
/**
* @brief Returns the string as OFData with the specified encoding.
*
* @param encoding The encoding to use for the returned OFData
* @return The string as OFData with the specified encoding
* @throw OFInvalidEncodingException The string cannot be represented in the
* specified encoding
*/
- (OFData *)dataWithEncoding: (OFStringEncoding)encoding;
# ifdef OF_HAVE_FILES
/**
* @brief Writes the string into the specified file using UTF-8 encoding.
*
* @param path The path of the file to write to
*/
- (void)writeToFile: (OFString *)path;
/**
* @brief Writes the string into the specified file using the specified
* encoding.
*
* @param path The path of the file to write to
* @param encoding The encoding to use to write the string into the file
* @throw OFInvalidEncodingException The string cannot be represented in the
* specified encoding
*/
- (void)writeToFile: (OFString *)path encoding: (OFStringEncoding)encoding;
# endif
/**
* @brief Writes the string to the specified IRI using UTF-8 encoding.
*
* @param IRI The IRI to write to
*/
- (void)writeToIRI: (OFIRI *)IRI;
/**
* @brief Writes the string to the specified IRI using the specified encoding.
*
* @param IRI The IRI to write to
* @param encoding The encoding to use to write the string to the IRI
* @throw OFInvalidEncodingException The string cannot be represented in the
* specified encoding
*/
- (void)writeToIRI: (OFIRI *)IRI encoding: (OFStringEncoding)encoding;
# ifdef OF_HAVE_BLOCKS
/**
* Enumerates all lines in the receiver using the specified block.
*
* @brief block The block to call for each line
*/
- (void)enumerateLinesUsingBlock: (OFStringLineEnumerationBlock)block;
# endif
@end
#endif
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Parses the specified string encoding name and returns the
* OFStringEncoding for it.
*
* Throws @ref OFInvalidArgumentException if the specified name is not a valid
* encoding name.
*
* @param name The name to parse as a string encoding
* @return The OFStringEncoding for the specified name
*/
extern OFStringEncoding OFStringEncodingParseName(OFString *name);
/**
* @brief Returns the name of the specified OFStringEncoding.
*
* @param encoding The encoding for which to return the name
* @return The name of the specified OFStringEncoding
*/
extern OFString *_Nullable OFStringEncodingName(OFStringEncoding encoding);
extern char *_Nullable OFStrDup(const char *_Nonnull);
extern size_t OFUTF8StringEncode(OFUnichar, char *);
extern ssize_t OFUTF8StringDecode(const char *, size_t, OFUnichar *);
extern size_t OFUTF16StringLength(const OFChar16 *);
extern size_t OFUTF32StringLength(const OFChar32 *);
#ifdef __cplusplus
}
#endif
OF_ASSUME_NONNULL_END
#include "OFConstantString.h"
#include "OFMutableString.h"
#ifdef __OBJC__
# import "OFString+CryptographicHashing.h"
# import "OFString+JSONParsing.h"
# ifdef OF_HAVE_FILES
# import "OFString+PathAdditions.h"
# endif
# import "OFString+PercentEncoding.h"
# import "OFString+PropertyListParsing.h"
# import "OFString+XMLEscaping.h"
# import "OFString+XMLUnescaping.h"
#endif
#if defined(__OBJC__) && !defined(NSINTEGER_DEFINED) && !__has_feature(modules)
/*
* Very *ugly* hack required for string boxing literals to work.
*
* This hack is needed in order to work with `@class NSString` from Apple's
* objc/NSString.h - which is included when using modules - as
* @compatibility_alias does not work if @class has been used before.
* For some reason, this makes Clang refer to OFString for string box literals
* and not to NSString (which would result in a linker error, but would be the
* correct behavior).
*
* TODO: Submit a patch for Clang that makes the boxing classes configurable!
*/
@interface NSString: OFString
@end
#endif
#endif