ObjFW  Diff

 * 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 "OFSerialization.h"
# 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 of_char16_t;
typedef char32_t of_char32_t;
#else
typedef uint_least16_t of_char16_t;
typedef uint_least32_t of_char32_t;

 * @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

#ifdef __OBJC__
@class OFArray OF_GENERIC(ObjectType);
@class OFCharacterSet;
@class OFURL;

/*!
 * @class OFString OFString.h ObjFW/OFString.h
 *

/*!
 * @brief 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 OFInvalidFormatException is thrown.
 *
 * If the number is too big to fit into an `intmax_t`, an
 * @ref OFOutOfRangeException is thrown.
 */
@property (readonly, nonatomic) intmax_t decimalValue;

/*!
 * @brief 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 OFInvalidFormatException is thrown.
 *
 * If the number is too big to fit into an `uintmax_t`, an
 * @ref OFOutOfRangeException is thrown.
 */
@property (readonly, nonatomic) uintmax_t hexadecimalValue;

/*!
 * @brief 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 OFInvalidFormatException is thrown.
 *
 * If the number is too big to fit into an `uintmax_t`, an
 * @ref OFOutOfRangeException is thrown.
 */
@property (readonly, nonatomic) uintmax_t octalValue;

/*!
 * @brief The float value of the string as a float.
 *
 * If the string contains any non-number characters, an
 * @ref OFInvalidFormatException is thrown.
 */
@property (readonly, nonatomic) float floatValue;

/*!
 * @brief The double value of the string as a double.
 *
 * If the string contains any non-number characters, an
 * @ref OFInvalidFormatException is thrown.
 */
@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

@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;

 * `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

 *
 * @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 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

 * @param format A string used as format to initialize the OFString
 * @param arguments The arguments used in the format string
 * @return An initialized OFString
 */
- (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
 */
- (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
 */
- (instancetype)initWithContentsOfFile: (OFString *)path
			      encoding: (of_string_encoding_t)encoding;
# endif

/*!
 * @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.
 *

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

/*!
 * @brief Writes the string to the specified URL using UTF-8 encoding.
 *
 * @param URL The URL to write to
 */
- (void)writeToURL: (OFURL *)URL;

/*!
 * @brief Writes the string to the specified URL using the specified encoding.
 *
 * @param URL The URL to write to
 * @param encoding The encoding to use to write the string to the URL
 */
- (void)writeToURL: (OFURL *)URL
	  encoding: (of_string_encoding_t)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: (of_string_line_enumeration_block_t)block;
# endif
@end
#endif

#ifdef __cplusplus
extern "C" {
#endif
extern of_string_encoding_t of_string_parse_encoding(OFString *);
extern OFString *_Nullable of_string_name_of_encoding(of_string_encoding_t);
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

#include "OFConstantString.h"
#include "OFMutableString.h"
#ifdef __OBJC__
# import "OFString+CryptoHashing.h"
# import "OFString+JSONValue.h"
# ifdef OF_HAVE_FILES
#  import "OFString+PathAdditions.h"
# endif
# import "OFString+PropertyListValue.h"
# import "OFString+Serialization.h"
# import "OFString+URLEncoding.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