ObjFW  Artifact [0fabfb3f71]

Artifact 0fabfb3f71d1eaf749a625338cdf681bd5994d261bd7b5d62fcaf267c27590e4:

• File src/OFString.h — part of check-in [06bcb21fc7] at 2017-01-09 06:26:04 on branch trunk — Add OFLocalization

  This singleton gives access to all things locale, including the ability
  to get localized strings.

  This also adds the OF_LOCALIZED() macro. Its first argument is an ID for
  the string to be localized and its second argument is the fallback
  string to be used if it cannot retrieve the localized string. Following
  that are variable name / value pairs to be replaced in the localized
  string.

  Getting translated strings is not implemented yet: Instead, it always
  uses the fallback string.

  This also switches ofhttp to localized strings. (user: js, size: 36054) [annotate] [blame] [check-ins using]

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 __STDC_LIMIT_MACROS
# define __STDC_LIMIT_MACROS
#endif
#ifndef __STDC_CONSTANT_MACROS
# define __STDC_CONSTANT_MACROS
#endif

#include <stdarg.h>
#include <stdint.h>

#import "OFObject.h"
#import "OFSerialization.h"
#import "OFJSONRepresentation.h"
#import "OFMessagePackRepresentation.h"

OF_ASSUME_NONNULL_BEGIN

/*! @file */

@class OFConstantString;

#if defined(__cplusplus) && __cplusplus >= 201103L
typedef char16_t of_char16_t;
typedef char32_t of_char32_t;
#else
typedef uint_least16_t of_char16_t;
typedef uint_least32_t of_char32_t;
#endif
typedef of_char32_t of_unichar_t;

/*!
 * @brief The encoding of a string.
 */
typedef enum of_string_encoding_t {
	/*
	 * UTF-8 *has* to be 0, so that if the @ref OFLocalization singleton is
	 * `nil`, `[OFLocalization encoding]` returns UTF-8.
	 */
	/*! UTF-8 */
	OF_STRING_ENCODING_UTF_8,
	/*! ASCII */
	OF_STRING_ENCODING_ASCII,
	/*! ISO 8859-1 */
	OF_STRING_ENCODING_ISO_8859_1,
	/*! ISO 8859-15 */
	OF_STRING_ENCODING_ISO_8859_15,
	/*! Windows-1252 */
	OF_STRING_ENCODING_WINDOWS_1252,
	/*! Codepage 437 */
	OF_STRING_ENCODING_CODEPAGE_437,
	/*! Try to automatically detect the encoding */
	OF_STRING_ENCODING_AUTODETECT = 0xFF
} of_string_encoding_t;

enum {
	OF_STRING_SEARCH_BACKWARDS = 1,
	OF_STRING_SKIP_EMPTY	   = 2
};

#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 (^of_string_line_enumeration_block_t)(OFString *line, bool *stop);
#endif

@class OFArray OF_GENERIC(ObjectType);
@class OFURL;

/*!
 * @class OFString OFString.h ObjFW/OFString.h
 *
 * @brief A class for handling strings.
 */
@interface OFString: OFObject <OFCopying, OFMutableCopying, OFComparing,
    OFSerialization, OFJSONRepresentation, OFMessagePackRepresentation>
/*!
 * @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
 */
+ (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
 */
+ (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.
 *
 * @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
 */
+ (instancetype)stringWithUTF8StringNoCopy: (char*)UTF8String
			      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
 */
+ (instancetype)stringWithCString: (const char*)cString
			 encoding: (of_string_encoding_t)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
 */
+ (instancetype)stringWithCString: (const char*)cString
			 encoding: (of_string_encoding_t)encoding
			   length: (size_t)cStringLength;

/*!
 * @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 of_unichar_t*)characters
			      length: (size_t)length;

/*!
 * @brief Creates a new OFString from a UTF-16 encoded string.
 *
 * @param string The UTF-16 string
 * @return A new autoreleased OFString
 */
+ (instancetype)stringWithUTF16String: (const of_char16_t*)string;

/*!
 * @brief Creates a new OFString from a UTF-16 encoded string with the
 *	  specified length.
 *
 * @param string The UTF-16 string
 * @param length The length of the UTF-16 string
 * @return A new autoreleased OFString
 */
+ (instancetype)stringWithUTF16String: (const of_char16_t*)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 The UTF-16 string
 * @param byteOrder The byte order to assume if there is no byte order mark
 * @return A new autoreleased OFString
 */
+ (instancetype)stringWithUTF16String: (const of_char16_t*)string
			    byteOrder: (of_byte_order_t)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 The 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
 */
+ (instancetype)stringWithUTF16String: (const of_char16_t*)string
			       length: (size_t)length
			    byteOrder: (of_byte_order_t)byteOrder;

/*!
 * @brief Creates a new OFString from a UTF-32 encoded string.
 *
 * @param string The UTF-32 string
 * @return A new autoreleased OFString
 */
+ (instancetype)stringWithUTF32String: (const of_char32_t*)string;

/*!
 * @brief Creates a new OFString from a UTF-32 encoded string with the
 *	  specified length.
 *
 * @param string The UTF-32 string
 * @param length The length of the UTF-32 string
 * @return A new autoreleased OFString
 */
+ (instancetype)stringWithUTF32String: (const of_char32_t*)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 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 of_char32_t*)string
			    byteOrder: (of_byte_order_t)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 The 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 of_char32_t*)string
			       length: (size_t)length
			    byteOrder: (of_byte_order_t)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 of_unichar_t and %S for const of_unichar_t*.
 *
 * @param format A string used as format to initialize the OFString
 * @return A new autoreleased OFString
 */
+ (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
 */
+ (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
 */
+ (instancetype)stringWithContentsOfFile: (OFString*)path
				encoding: (of_string_encoding_t)encoding;
#endif

#if defined(OF_HAVE_FILES) || defined(OF_HAVE_SOCKETS)
/*!
 * @brief Creates a new OFString with the contents of the specified URL.
 *
 * If the URL's scheme is file, it tries UTF-8 encoding.
 *
 * If the URL'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 URL The URL to the contents for the string
 * @return A new autoreleased OFString
 */
+ (instancetype)stringWithContentsOfURL: (OFURL*)URL;

/*!
 * @brief Creates a new OFString with the contents of the specified URL in the
 *	  specified encoding.
 *
 * @param URL The URL to the contents for the string
 * @param encoding The encoding to assume
 * @return A new autoreleased OFString
 */
+ (instancetype)stringWithContentsOfURL: (OFURL*)URL
			       encoding: (of_string_encoding_t)encoding;
#endif

/*!
 * @brief Creates a path from the specified path components.
 *
 * @param components An array of components for the path
 * @return A new autoreleased OFString
 */
+ (OFString*)pathWithComponents: (OFArray OF_GENERIC(OFString*)*)components;

/*!
 * @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
 */
- 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
 */
- initWithUTF8String: (const char*)UTF8String
	      length: (size_t)UTF8StringLength;

/*!
 * @brief Initializes an already allocated OFString from an UTF-8 encoded C
 *	  string without copying it, if possible.
 *
 * @note Mutable versions always create 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
 */
- initWithUTF8StringNoCopy: (char*)UTF8String
	      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
 */
- initWithCString: (const char*)cString
	 encoding: (of_string_encoding_t)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
 */
- initWithCString: (const char*)cString
	 encoding: (of_string_encoding_t)encoding
	   length: (size_t)cStringLength;

/*!
 * @brief Initializes an already allocated OFString with another string.
 *
 * @param string A string to initialize the OFString with
 * @return An initialized OFString
 */
- 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
 */
- initWithCharacters: (const of_unichar_t*)characters
	      length: (size_t)length;

/*!
 * @brief Initializes an already allocated OFString with a UTF-16 string.
 *
 * @param string The UTF-16 string
 * @return An initialized OFString
 */
- initWithUTF16String: (const of_char16_t*)string;

/*!
 * @brief Initializes an already allocated OFString with a UTF-16 string with
 *	  the specified length.
 *
 * @param string The UTF-16 string
 * @param length The length of the UTF-16 string
 * @return An initialized OFString
 */
- initWithUTF16String: (const of_char16_t*)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 The UTF-16 string
 * @param byteOrder The byte order to assume if there is no byte order mark
 * @return An initialized OFString
 */
- initWithUTF16String: (const of_char16_t*)string
	    byteOrder: (of_byte_order_t)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 The 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
 */
- initWithUTF16String: (const of_char16_t*)string
	       length: (size_t)length
	    byteOrder: (of_byte_order_t)byteOrder;

/*!
 * @brief Initializes an already allocated OFString with a UTF-32 string.
 *
 * @param string The UTF-32 string
 * @return An initialized OFString
 */
- initWithUTF32String: (const of_char32_t*)string;

/*!
 * @brief Initializes an already allocated OFString with a UTF-32 string with
 *	  the specified length
 *
 * @param string The UTF-32 string
 * @param length The length of the UTF-32 string
 * @return An initialized OFString
 */
- initWithUTF32String: (const of_char32_t*)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 The UTF-32 string
 * @param byteOrder The byte order to assume if there is no byte order mark
 * @return An initialized OFString
 */
- initWithUTF32String: (const of_char32_t*)string
	    byteOrder: (of_byte_order_t)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 The 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
 */
- initWithUTF32String: (const of_char32_t*)string
	       length: (size_t)length
	    byteOrder: (of_byte_order_t)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 of_unichar_t and %S for const of_unichar_t*.
 *
 * @param format A string used as format to initialize the OFString
 * @return An initialized OFString
 */
- 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 of_unichar_t and %S for const of_unichar_t*.
 *
 * @param format A string used as format to initialize the OFString
 * @param arguments The arguments used in the format string
 * @return An initialized OFString
 */
- 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
 */
- 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
 */
- initWithContentsOfFile: (OFString*)path
		encoding: (of_string_encoding_t)encoding;
#endif

#if defined(OF_HAVE_FILES) || defined(OF_HAVE_SOCKETS)
/*!
 * @brief Initializes an already allocated OFString with the contents of the
 *	  specified URL.
 *
 * If the URL's scheme is file, it tries UTF-8 encoding.
 *
 * If the URL'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 URL The URL to the contents for the string
 * @return An initialized OFString
 */
- initWithContentsOfURL: (OFURL*)URL;

/*!
 * @brief Initializes an already allocated OFString with the contents of the
 *	  specified URL in the specified encoding.
 *
 * @param URL The URL to the contents for the string
 * @param encoding The encoding to assume
 * @return An initialized OFString
 */
- initWithContentsOfURL: (OFURL*)URL
	       encoding: (of_string_encoding_t)encoding;
#endif

/*!
 * @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
 */
- (size_t)getCString: (char*)cString
	   maxLength: (size_t)maxLength
	    encoding: (of_string_encoding_t)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: (of_string_encoding_t)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
 */
- (const char*)cStringWithEncoding: (of_string_encoding_t)encoding
    OF_RETURNS_INNER_POINTER;

/*!
 * @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: (of_string_encoding_t)encoding
    OF_RETURNS_INNER_POINTER;

/*!
 * @brief Returns 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.
 *
 * @return The OFString as a UTF-8 encoded C string
 */
- (const char*)UTF8String OF_RETURNS_INNER_POINTER;

/*!
 * @brief Returns the length of the string in Unicode characters.
 *
 * @return The length of the string in Unicode characters
 */
- (size_t)length;

/*!
 * @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.
 */
- (size_t)cStringLengthWithEncoding: (of_string_encoding_t)encoding;

/*!
 * @brief Returns the number of bytes the string needs in UTF-8 encoding.
 *
 * @return The number of bytes the string needs in UTF-8 encoding.
 */
- (size_t)UTF8StringLength;

/*!
 * @brief Compares the OFString to another OFString without caring about the
 *	  case.
 *
 * @param otherString A string to compare with
 * @return An of_comparison_result_t
 */
- (of_comparison_result_t)caseInsensitiveCompare: (OFString*)otherString;

/*!
 * @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
 */
- (of_unichar_t)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: (of_unichar_t*)buffer
	      inRange: (of_range_t)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
 *	   `OF_NOT_FOUND` as start position if it was not found
 */
- (of_range_t)rangeOfString: (OFString*)string;

/*!
 * @brief Returns the range of the string.
 *
 * @param string The string to search
 * @param options Options modifying search behaviour.@n
 *		  Possible values are:
 *		  Value                        | Description
 *		  -----------------------------|-------------------------------
 *		  `OF_STRING_SEARCH_BACKWARDS` | Search backwards in the string
 * @return The range of the first occurrence of the string or a range with
 *	   `OF_NOT_FOUND` as start position if it was not found
 */
- (of_range_t)rangeOfString: (OFString*)string
		    options: (int)options;

/*!
 * @brief Returns the range of the string in the specified range.
 *
 * @param string The string to search
 * @param options Options modifying search behaviour.@n
 *		  Possible values are:
 *		  Value                        | Description
 *		  -----------------------------|-------------------------------
 *		  `OF_STRING_SEARCH_BACKWARDS` | Search backwards in the string
 * @param range The range in which to search
 * @return The range of the first occurrence of the string or a range with
 *	   `OF_NOT_FOUND` as start position if it was not found
 */
- (of_range_t)rangeOfString: (OFString*)string
		    options: (int)options
		      range: (of_range_t)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 with the specified range.
 *
 * @param range The range of the substring
 * @return The substring as a new autoreleased OFString
 */
- (OFString*)substringWithRange: (of_range_t)range;

/*!
 * @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
 */
- (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
 */
- (OFString*)stringByAppendingFormat: (OFConstantString*)format
			   arguments: (va_list)arguments;

/*!
 * @brief Creates a new string by appending a path component.
 *
 * @param component The path component to append
 * @return A new, autoreleased OFString with the path component appended
 */
- (OFString*)stringByAppendingPathComponent: (OFString*)component;

/*!
 * @brief Creates a new string by prepending another string.
 *
 * @param string The string to prepend
 * @return A new autoreleased OFString with the specified string prepended
 */
- (OFString*)stringByPrependingString: (OFString*)string;

/*!
 * @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
 * @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: (of_range_t)range;

/*!
 * @brief Returns the string in uppercase.
 *
 * @return The string in uppercase
 */
- (OFString*)uppercaseString;

/*!
 * @brief Returns the string in lowercase.
 *
 * @return The string in lowercase
 */
- (OFString*)lowercaseString;

/*!
 * @brief Returns the string capitalized.
 *
 * @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!
 *
 * @return The capitalized string
 */
- (OFString*)capitalizedString;

/*!
 * @brief Creates a new string by deleting leading whitespaces.
 *
 * @return A new autoreleased OFString with leading whitespaces deleted
 */
- (OFString*)stringByDeletingLeadingWhitespaces;

/*!
 * @brief Creates a new string by deleting trailing whitespaces.
 *
 * @return A new autoreleased OFString with trailing whitespaces deleted
 */
- (OFString*)stringByDeletingTrailingWhitespaces;

/*!
 * @brief Creates a new string by deleting leading and trailing whitespaces.
 *
 * @return A new autoreleased OFString with leading and trailing whitespaces
 *	   deleted
 */
- (OFString*)stringByDeletingEnclosingWhitespaces;

/*!
 * @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 an OFString into an OFArray of OFStrings.
 *
 * @param delimiter The delimiter for separating
 * @return An autoreleased OFArray with the separated string
 */
- (OFArray OF_GENERIC(OFString*)*)componentsSeparatedByString:
    (OFString*)delimiter;

/*!
 * @brief Separates an OFString into an OFArray of OFStrings.
 *
 * @param delimiter The delimiter for separating
 * @param options Options according to which the string should be separated.@n
 *		  Possible values are:
 *		  Value                  | Description
 *		  -----------------------|----------------------
 * 		  `OF_STRING_SKIP_EMPTY` | Skip empty components
 * @return An autoreleased OFArray with the separated string
 */
- (OFArray OF_GENERIC(OFString*)*)
    componentsSeparatedByString: (OFString*)delimiter
			options: (int)options;

/*!
 * @brief Returns the components of the path.
 *
 * @return The components of the path
 */
- (OFArray OF_GENERIC(OFString*)*)pathComponents;

/*!
 * @brief Returns the last component of the path.
 *
 * @return The last component of the path
 */
- (OFString*)lastPathComponent;

/*!
 * @brief Returns the file extension of the path.
 *
 * @return The file extension of the path
 */
- (OFString*)pathExtension;

/*!
 * @brief Returns the directory name of the path.
 *
 * @return The directory name of the path
 */
- (OFString*)stringByDeletingLastPathComponent;

/*!
 * @brief Returns a new string with the file extension of the path removed.
 *
 * @return A new string with the file extension of the path removed
 */
- (OFString*)stringByDeletingPathExtension;

/*!
 * @brief Returns the path with relative sub paths resolved.
 *
 * @return The path with relative sub paths resolved
 */
- (OFString*)stringByStandardizingPath;

/*!
 * @brief Returns the URL path with relative sub paths resolved.
 *
 * This works similar to @ref stringByStandardizingPath, but is intended for
 * standardization of paths that are part of a URL.
 *
 * @return The URL path with relative sub paths resolved
 */
- (OFString*)stringByStandardizingURLPath;

/*!
 * @brief Returns the decimal value of the string as an `intmax_t`.
 *
 * Leading and trailing whitespaces are ignored.
 *
 * If the string contains any non-number characters, an
 * @ref OFInvalidEncodingException is thrown.
 *
 * If the number is too big to fit into an `intmax_t`, an
 * @ref OFOutOfRangeException is thrown.
 *
 * @return An `intmax_t` with the value of the string
 */
- (intmax_t)decimalValue;

/*!
 * @brief Returns the hexadecimal value of the string as an `uintmax_t`.
 *
 * Leading and trailing whitespaces are ignored.
 *
 * If the string contains any non-number characters, an
 * @ref OFInvalidEncodingException is thrown.
 *
 * If the number is too big to fit into an `uintmax_t`, an
 * @ref OFOutOfRangeException is thrown.
 *
 * @return A `uintmax_t` with the value of the string
 */
- (uintmax_t)hexadecimalValue;

/*!
 * @brief Returns the octal value of the string as an `uintmax_t`.
 *
 * Leading and trailing whitespaces are ignored.
 *
 * If the string contains any non-number characters, an
 * @ref OFInvalidEncodingException is thrown.
 *
 * If the number is too big to fit into an `uintmax_t`, an
 * @ref OFOutOfRangeException is thrown.
 *
 * @return A `uintmax_t` with the value of the string
 */
- (uintmax_t)octalValue;

/*!
 * @brief Returns the float value of the string as a float.
 *
 * If the string contains any non-number characters, an
 * OFInvalidEncodingException is thrown.
 *
 * @return A float with the value of the string
 */
- (float)floatValue;

/*!
 * @brief Returns the double value of the string as a double.
 *
 * If the string contains any non-number characters, an
 * OFInvalidEncodingException is thrown.
 *
 * @return A double with the value of the string
 */
- (double)doubleValue;

/*!
 * @brief Returns 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.
 *
 * @return The string as an array of Unicode characters
 */
- (const of_unichar_t*)characters OF_RETURNS_INNER_POINTER;

/*!
 * @brief Returns 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.
 *
 * @return The string in UTF-16 encoding with native byte order
 */
- (const of_char16_t*)UTF16String OF_RETURNS_INNER_POINTER;

/*!
 * @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.
 *
 * @param byteOrder The byte order for the UTF-16 encoding
 * @return The string in UTF-16 encoding with the specified byte order
 */
- (const of_char16_t*)UTF16StringWithByteOrder: (of_byte_order_t)byteOrder
    OF_RETURNS_INNER_POINTER;

/*!
 * @brief Returns the length of the string in UTF-16 characters.
 *
 * @return The length of string in UTF-16 characters
 */
- (size_t)UTF16StringLength;

/*!
 * @brief Returns 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.
 *
 * @return The string in UTF-32 encoding with native byte order
 */
- (const of_char32_t*)UTF32String OF_RETURNS_INNER_POINTER;

/*!
 * @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.
 *
 * @param byteOrder The byte order for the UTF-32 encoding
 * @return The string in UTF-32 encoding with the specified byte order
 */
- (const of_char32_t*)UTF32StringWithByteOrder: (of_byte_order_t)byteOrder
    OF_RETURNS_INNER_POINTER;

#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
 */
- (void)writeToFile: (OFString*)path
	   encoding: (of_string_encoding_t)encoding;
#endif

#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: (of_string_line_enumeration_block_t)block;
#endif
@end

#ifdef __cplusplus
extern "C" {
#endif
extern size_t of_string_utf8_encode(of_unichar_t, char*);
extern ssize_t of_string_utf8_decode(const char*, size_t, of_unichar_t*);
extern size_t of_string_utf16_length(const of_char16_t*);
extern size_t of_string_utf32_length(const of_char32_t*);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#import "OFConstantString.h"
#import "OFMutableString.h"
#import "OFString+CryptoHashing.h"
#import "OFString+JSONValue.h"
#import "OFString+Serialization.h"
#import "OFString+URLEncoding.h"
#import "OFString+XMLEscaping.h"
#import "OFString+XMLUnescaping.h"

#if !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