ObjFW  Diff

 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <ctype.h>

#include <sys/stat.h>

#import "OFString.h"
#import "OFString_UTF8.h"
#import "OFArray.h"
#import "OFDictionary.h"
#import "OFFile.h"
#import "OFURL.h"
#import "OFHTTPRequest.h"
#import "OFDataArray.h"
#import "OFXMLElement.h"

#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

#import "macros.h"
#import "of_asprintf.h"
#import "unicode.h"

extern const uint16_t of_iso_8859_15[256];
extern const uint16_t of_windows_1252[256];

/* References for static linking */
void _references_to_categories_of_OFString(void)
{
	_OFString_Hashing_reference = 1;
	_OFString_Serialization_reference = 1;
	_OFString_URLEncoding_reference = 1;
	_OFString_XMLEscaping_reference = 1;
	_OFString_XMLUnescaping_reference = 1;
}

static inline int
memcasecmp(const char *first, const char *second, size_t length)
{
	size_t i;

	for (i = 0; i < length; i++) {
		if (tolower((int)first[i]) > tolower((int)second[i]))
			return OF_ORDERED_DESCENDING;
		if (tolower((int)first[i]) < tolower((int)second[i]))
			return OF_ORDERED_ASCENDING;
	}

	return OF_ORDERED_SAME;
}

int
of_string_check_utf8(const char *cString, size_t cStringLength, size_t *length)
{
	size_t i, tmpLength = cStringLength;
	int UTF8 = 0;

	for (i = 0; i < cStringLength; i++) {

	const uint16_t *string_ = string;

	while (*string_ != 0)
		string_++;

	return (size_t)(string_ - string);
}

static struct {
	Class isa;
} placeholder;

@interface OFString_placeholder: OFString
@end

@implementation OFString_placeholder
- init
{
	return (id)[[OFString_UTF8 alloc] init];
}

- initWithUTF8String: (const char*)UTF8String
{
	return (id)[[OFString_UTF8 alloc] initWithUTF8String: UTF8String];
}

- initWithUTF8String: (const char*)UTF8String
	      length: (size_t)UTF8StringLength
{
	return (id)[[OFString_UTF8 alloc] initWithUTF8String: UTF8String
						      length: UTF8StringLength];
}

- initWithCString: (const char*)cString
	 encoding: (of_string_encoding_t)encoding
{
	return (id)[[OFString_UTF8 alloc] initWithCString: cString
						 encoding: encoding];
}

- initWithCString: (const char*)cString
	 encoding: (of_string_encoding_t)encoding
	   length: (size_t)cStringLength
{
	return (id)[[OFString_UTF8 alloc] initWithCString: cString
						 encoding: encoding
						   length: cStringLength];
}

- initWithString: (OFString*)string
{
	return (id)[[OFString_UTF8 alloc] initWithString: string];
}

- initWithUnicodeString: (const of_unichar_t*)string
{
	return (id)[[OFString_UTF8 alloc] initWithUnicodeString: string];
}

- initWithUnicodeString: (const of_unichar_t*)string
	      byteOrder: (of_endianess_t)byteOrder
{
	return (id)[[OFString_UTF8 alloc] initWithUnicodeString: string
						      byteOrder: byteOrder];
}

- initWithUnicodeString: (const of_unichar_t*)string
		 length: (size_t)length
{
	return (id)[[OFString_UTF8 alloc] initWithUnicodeString: string
							 length: length];
}

- initWithUnicodeString: (const of_unichar_t*)string
	      byteOrder: (of_endianess_t)byteOrder
		 length: (size_t)length
{
	return (id)[[OFString_UTF8 alloc] initWithUnicodeString: string
						      byteOrder: byteOrder
							 length: length];
}

- initWithUTF16String: (const uint16_t*)string
{
	return (id)[[OFString_UTF8 alloc] initWithUTF16String: string];
}

- initWithUTF16String: (const uint16_t*)string
	    byteOrder: (of_endianess_t)byteOrder
{
	return (id)[[OFString_UTF8 alloc] initWithUTF16String: string
						    byteOrder: byteOrder];
}

- initWithUTF16String: (const uint16_t*)string
	       length: (size_t)length
{
	return (id)[[OFString_UTF8 alloc] initWithUTF16String: string
						       length: length];
}

- initWithUTF16String: (const uint16_t*)string
	    byteOrder: (of_endianess_t)byteOrder
	       length: (size_t)length
{
	return (id)[[OFString_UTF8 alloc] initWithUTF16String: string
						    byteOrder: byteOrder
						       length: length];
}

- initWithFormat: (OFConstantString*)format, ...
{
	id ret;
	va_list arguments;

	va_start(arguments, format);
	ret = [[OFString_UTF8 alloc] initWithFormat: format
					  arguments: arguments];
	va_end(arguments);

	return ret;
}

- initWithFormat: (OFConstantString*)format
       arguments: (va_list)arguments
{
	return (id)[[OFString_UTF8 alloc] initWithFormat: format
					       arguments: arguments];
}

- initWithPath: (OFString*)firstComponent, ...
{
	id ret;
	va_list arguments;

	va_start(arguments, firstComponent);
	ret = [[OFString_UTF8 alloc] initWithPath: firstComponent
					arguments: arguments];
	va_end(arguments);

	return ret;
}

- initWithPath: (OFString*)firstComponent
     arguments: (va_list)arguments
{
	return (id)[[OFString_UTF8 alloc] initWithPath: firstComponent
					     arguments: arguments];
}

- initWithContentsOfFile: (OFString*)path
{
	return (id)[[OFString_UTF8 alloc] initWithContentsOfFile: path];
}

- initWithContentsOfFile: (OFString*)path
		encoding: (of_string_encoding_t)encoding
{
	return (id)[[OFString_UTF8 alloc] initWithContentsOfFile: path
							encoding: encoding];
}

- initWithContentsOfURL: (OFURL*)URL
{
	return (id)[[OFString_UTF8 alloc] initWithContentsOfURL: URL];
}

- initWithContentsOfURL: (OFURL*)URL
	       encoding: (of_string_encoding_t)encoding
{
	return (id)[[OFString_UTF8 alloc] initWithContentsOfURL: URL
						       encoding: encoding];
}

- initWithSerialization: (OFXMLElement*)element
{
	return (id)[[OFString_UTF8 alloc] initWithSerialization: element];
}

- retain
{
	return self;
}

- autorelease
{
	return self;
}

- (void)release
{
}

- (void)dealloc
{
	@throw [OFNotImplementedException exceptionWithClass: isa
						    selector: _cmd];
	[super dealloc];	/* Get rid of a stupid warning */
}
@end

@implementation OFString
+ (void)initialize
{
	if (self == [OFString class])
		placeholder.isa = [OFString_placeholder class];
}

+ alloc
{
	if (self == [OFString class])
		return (id)&placeholder;

	return [super alloc];
}

+ string
{
	return [[[self alloc] init] autorelease];
}

+ stringWithUTF8String: (const char*)UTF8String
{

{
	return [[[self alloc] initWithContentsOfURL: URL
					   encoding: encoding] autorelease];
}

- init
{
	self = [super init];

	if (isa == [OFString class]) {
	@try {
		s = [self allocMemoryWithSize: sizeof(*s)];
		memset(s, 0, sizeof(*s));

		Class c = isa;
		s->cString = [self allocMemoryWithSize: 1];
		s->cString[0] = '\0';
	} @catch (id e) {
		[self release];
		@throw e;
		@throw [OFNotImplementedException exceptionWithClass: c
							    selector: _cmd];
	}

	return self;
	return [super init];
}

- initWithUTF8String: (const char*)UTF8String
{
	return [self initWithCString: UTF8String
			    encoding: OF_STRING_ENCODING_UTF_8
			      length: strlen(UTF8String)];

			      length: strlen(cString)];
}

- initWithCString: (const char*)cString
	 encoding: (of_string_encoding_t)encoding
	   length: (size_t)cStringLength
{
	self = [super init];

	Class c = isa;
	@try {
		size_t i, j;
		const uint16_t *table;

		if (encoding == OF_STRING_ENCODING_UTF_8 &&
		    cStringLength >= 3 && !memcmp(cString, "\xEF\xBB\xBF", 3)) {
			cString += 3;
			cStringLength -= 3;
		}

		s = [self allocMemoryWithSize: sizeof(*s)];
		memset(s, 0, sizeof(*s));

		s->cString = [self allocMemoryWithSize: cStringLength + 1];
		s->cStringLength = cStringLength;

		if (encoding == OF_STRING_ENCODING_UTF_8 ||
		    encoding == OF_STRING_ENCODING_ASCII) {
			switch (of_string_check_utf8(cString, cStringLength,
			    &s->length)) {
			case 1:
				if (encoding == OF_STRING_ENCODING_ASCII)
					@throw [OFInvalidEncodingException
					    exceptionWithClass: isa];

				s->UTF8 = YES;
				break;
			case -1:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: isa];
			}

			memcpy(s->cString, cString, cStringLength);
			s->cString[cStringLength] = 0;

			return self;
		}

		/* All other encodings we support are single byte encodings */
		s->length = cStringLength;

		if (encoding == OF_STRING_ENCODING_ISO_8859_1) {
			for (i = j = 0; i < cStringLength; i++) {
				char buffer[4];
				size_t bytes;

				if (!(cString[i] & 0x80)) {
					s->cString[j++] = cString[i];
					continue;
				}

				s->UTF8 = YES;
				bytes = of_string_unicode_to_utf8(
				    (uint8_t)cString[i], buffer);

				if (bytes == 0)
					@throw [OFInvalidEncodingException
					    exceptionWithClass: isa];

				s->cStringLength += bytes - 1;
				s->cString = [self
				    resizeMemory: s->cString
					  toSize: s->cStringLength + 1];

				memcpy(s->cString + j, buffer, bytes);
				j += bytes;
			}

			s->cString[s->cStringLength] = 0;

			return self;
		}

		switch (encoding) {
		case OF_STRING_ENCODING_ISO_8859_15:
			table = of_iso_8859_15;
			break;
		case OF_STRING_ENCODING_WINDOWS_1252:
			table = of_windows_1252;
			break;
		default:
			@throw [OFInvalidEncodingException
			    exceptionWithClass: isa];
		}

		for (i = j = 0; i < cStringLength; i++) {
			char buffer[4];
			of_unichar_t character;
			size_t characterBytes;

			if (!(cString[i] & 0x80)) {
				s->cString[j++] = cString[i];
				continue;
			}

			character = table[(uint8_t)cString[i]];

			if (character == 0xFFFD)
				@throw [OFInvalidEncodingException
				    exceptionWithClass: isa];

			s->UTF8 = YES;
			characterBytes = of_string_unicode_to_utf8(character,
			    buffer);

			if (characterBytes == 0)
				@throw [OFInvalidEncodingException
				    exceptionWithClass: isa];

			s->cStringLength += characterBytes - 1;
			s->cString = [self resizeMemory: s->cString
						 toSize: s->cStringLength + 1];

			memcpy(s->cString + j, buffer, characterBytes);
			j += characterBytes;
		}

		s->cString[s->cStringLength] = 0;
	} @catch (id e) {
		[self release];
		@throw e;
	[self release];
	@throw [OFNotImplementedException exceptionWithClass: c
	}

						    selector: _cmd];
	return self;
}

- initWithString: (OFString*)string
{
	self = [super init];

	Class c = isa;
	@try {
		s = [self allocMemoryWithSize: sizeof(*s)];
		memset(s, 0, sizeof(*s));

		/*
		 * We need one call to make sure it's initialized (in case it's
		 * a constant string).
		 */
		s->cStringLength = [string UTF8StringLength];
		s->UTF8 = string->s->UTF8;
		s->length = string->s->length;

		s->cString = [self allocMemoryWithSize: s->cStringLength + 1];
		memcpy(s->cString, string->s->cString, s->cStringLength + 1);
	} @catch (id e) {
		[self release];
		@throw e;
	[self release];
	@throw [OFNotImplementedException exceptionWithClass: c
	}

						    selector: _cmd];
	return self;
}

- initWithUnicodeString: (const of_unichar_t*)string
{
	return [self initWithUnicodeString: string
				 byteOrder: OF_ENDIANESS_NATIVE
				    length: of_unicode_string_length(string)];

				    length: length];
}

- initWithUnicodeString: (const of_unichar_t*)string
	      byteOrder: (of_endianess_t)byteOrder
		 length: (size_t)length
{
	self = [super init];

	Class c = isa;
	@try {
		size_t i, j = 0;
		BOOL swap = NO;

		if (length > 0 && *string == 0xFEFF) {
			string++;
			length--;
		} else if (length > 0 && *string == 0xFFFE0000) {
			swap = YES;
			string++;
			length--;
		} else if (byteOrder != OF_ENDIANESS_NATIVE)
			swap = YES;

		s = [self allocMemoryWithSize: sizeof(*s)];
		memset(s, 0, sizeof(*s));

		s->cStringLength = length;
		s->cString = [self allocMemoryWithSize: (length * 4) + 1];
		s->length = length;

		for (i = 0; i < length; i++) {
			char buffer[4];
			size_t characterLen = of_string_unicode_to_utf8(
			    (swap ? of_bswap32(string[i]) : string[i]),
			    buffer);

			switch (characterLen) {
			case 1:
				s->cString[j++] = buffer[0];
				break;
			case 2:
				s->UTF8 = YES;
				s->cStringLength++;

				memcpy(s->cString + j, buffer, 2);
				j += 2;

				break;
			case 3:
				s->UTF8 = YES;
				s->cStringLength += 2;

				memcpy(s->cString + j, buffer, 3);
				j += 3;

				break;
			case 4:
				s->UTF8 = YES;
				s->cStringLength += 3;

				memcpy(s->cString + j, buffer, 4);
				j += 4;

				break;
			default:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: isa];
			}
		}

		s->cString[j] = '\0';

		@try {
			s->cString = [self resizeMemory: s->cString
						 toSize: s->cStringLength + 1];
		} @catch (OFOutOfMemoryException *e) {
			/* We don't care, as we only tried to make it smaller */
		}
	} @catch (id e) {
		[self release];
		@throw e;
	[self release];
	@throw [OFNotImplementedException exceptionWithClass: c
	}

						    selector: _cmd];
	return self;
}

- initWithUTF16String: (const uint16_t*)string
{
	return [self initWithUTF16String: string
			       byteOrder: OF_ENDIANESS_BIG_ENDIAN
				  length: of_utf16_string_length(string)];

				  length: length];
}

- initWithUTF16String: (const uint16_t*)string
	    byteOrder: (of_endianess_t)byteOrder
	       length: (size_t)length
{
	self = [super init];

	Class c = isa;
	@try {
		size_t i, j = 0;
		BOOL swap = NO;

		if (length > 0 && *string == 0xFEFF) {
			string++;
			length--;
		} else if (length > 0 && *string == 0xFFFE) {
			swap = YES;
			string++;
			length--;
		} else if (byteOrder != OF_ENDIANESS_NATIVE)
			swap = YES;

		s = [self allocMemoryWithSize: sizeof(*s)];
		memset(s, 0, sizeof(*s));

		s->cStringLength = length;
		s->cString = [self allocMemoryWithSize: (length * 4) + 1];
		s->length = length;

		for (i = 0; i < length; i++) {
			char buffer[4];
			of_unichar_t character =
			    (swap ? of_bswap16(string[i]) : string[i]);
			size_t characterLen;

			/* Missing high surrogate */
			if ((character & 0xFC00) == 0xDC00)
				@throw [OFInvalidEncodingException
				    exceptionWithClass: isa];

			if ((character & 0xFC00) == 0xD800) {
				uint16_t nextCharacter;

				if (length <= i + 1)
					@throw [OFInvalidEncodingException
					    exceptionWithClass: isa];

				nextCharacter = (swap
				    ? of_bswap16(string[i + 1])
				    : string[i + 1]);
				character = (((character & 0x3FF) << 10) |
				    (nextCharacter & 0x3FF)) + 0x10000;

				i++;
				s->cStringLength--;
				s->length--;
			}

			characterLen = of_string_unicode_to_utf8(
			    character, buffer);

			switch (characterLen) {
			case 1:
				s->cString[j++] = buffer[0];
				break;
			case 2:
				s->UTF8 = YES;
				s->cStringLength++;

				memcpy(s->cString + j, buffer, 2);
				j += 2;

				break;
			case 3:
				s->UTF8 = YES;
				s->cStringLength += 2;

				memcpy(s->cString + j, buffer, 3);
				j += 3;

				break;
			case 4:
				s->UTF8 = YES;
				s->cStringLength += 3;

				memcpy(s->cString + j, buffer, 4);
				j += 4;

				break;
			default:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: isa];
			}
		}

		s->cString[j] = '\0';

		@try {
			s->cString = [self resizeMemory: s->cString
						 toSize: s->cStringLength + 1];
		} @catch (OFOutOfMemoryException *e) {
			/* We don't care, as we only tried to make it smaller */
		}
	} @catch (id e) {
		[self release];
		@throw e;
	[self release];
	@throw [OFNotImplementedException exceptionWithClass: c
	}

						    selector: _cmd];
	return self;
}

- initWithFormat: (OFConstantString*)format, ...
{
	id ret;
	va_list arguments;

	va_start(arguments, format);
	ret = [self initWithFormat: format
			 arguments: arguments];
	va_end(arguments);

	return ret;
}

- initWithFormat: (OFConstantString*)format
       arguments: (va_list)arguments
{
	self = [super init];

	Class c = isa;
	@try {
		int cStringLength;

	[self release];
		if (format == nil)
			@throw [OFInvalidArgumentException
			    exceptionWithClass: isa
				      selector: _cmd];
	@throw [OFNotImplementedException exceptionWithClass: c
						    selector: _cmd];

		s = [self allocMemoryWithSize: sizeof(*s)];
		memset(s, 0, sizeof(*s));

		if ((cStringLength = of_vasprintf(&s->cString,
		    [format UTF8String], arguments)) == -1)
			@throw [OFInvalidFormatException
			    exceptionWithClass: isa];

		s->cStringLength = cStringLength;

		@try {
			switch (of_string_check_utf8(s->cString,
			    cStringLength, &s->length)) {
			case 1:
				s->UTF8 = YES;
				break;
			case -1:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: isa];
			}

			[self addMemoryToPool: s->cString];
		} @catch (id e) {
			free(s->cString);
			@throw e;
		}
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- initWithPath: (OFString*)firstComponent, ...
{
	id ret;
	va_list arguments;

	va_start(arguments, firstComponent);
	ret = [self initWithPath: firstComponent
		       arguments: arguments];
	va_end(arguments);

	return ret;
}

- initWithPath: (OFString*)firstComponent
     arguments: (va_list)arguments
{
	self = [super init];

	Class c = isa;
	@try {
		OFString *component;
		size_t i, cStringLength;
		va_list argumentsCopy;

		s = [self allocMemoryWithSize: sizeof(*s)];
		memset(s, 0, sizeof(*s));

		/*
		 * First needs to be a call to be sure it is initialized, in
		 * case it's a constant string.
		 */
		s->cStringLength = [firstComponent UTF8StringLength];
		s->UTF8 = firstComponent->s->UTF8;
		s->length = firstComponent->s->length;

		/* Calculate length and see if we need UTF-8 */
		va_copy(argumentsCopy, arguments);
		while ((component = va_arg(argumentsCopy, OFString*)) != nil) {
			/* First needs to be a call, see above */
			s->cStringLength += 1 + [component UTF8StringLength];
			s->length += 1 + component->s->length;

			if (component->s->UTF8)
				s->UTF8 = YES;
		}

		s->cString = [self allocMemoryWithSize: s->cStringLength + 1];

		cStringLength = [firstComponent UTF8StringLength];
		memcpy(s->cString, [firstComponent UTF8String], cStringLength);
		i = cStringLength;

		while ((component = va_arg(arguments, OFString*)) != nil) {
			/*
			 * We already sent each component a message, so we can
			 * be sure they are initialized and access them
			 * directly.
			 */
			cStringLength = component->s->cStringLength;

			s->cString[i] = OF_PATH_DELIMITER;
			memcpy(s->cString + i + 1, component->s->cString,
			    cStringLength);

			i += 1 + cStringLength;
		}

		s->cString[i] = '\0';
	} @catch (id e) {
		[self release];
		@throw e;
	[self release];
	@throw [OFNotImplementedException exceptionWithClass: c
	}

						    selector: _cmd];
	return self;
}

- initWithContentsOfFile: (OFString*)path
{
	return [self initWithContentsOfFile: path
				   encoding: OF_STRING_ENCODING_UTF_8];
}

}

- initWithSerialization: (OFXMLElement*)element
{
	@try {
		OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];

		if (![[element name] isEqual: [self className]] ||
		    ![[element namespace] isEqual: OF_SERIALIZATION_NS])
		if (![[element namespace] isEqual: OF_SERIALIZATION_NS])
			@throw [OFInvalidArgumentException
			    exceptionWithClass: isa
				      selector: _cmd];

		if ([self isKindOfClass: [OFMutableString class]]) {
			if (![[element name] isEqual: @"OFMutableString"])
				@throw [OFInvalidArgumentException
				    exceptionWithClass: isa
					      selector: _cmd];
		} else {
			if (![[element name] isEqual: @"OFString"])
				@throw [OFInvalidArgumentException
				    exceptionWithClass: isa
					      selector: _cmd];
		}

		self = [self initWithString: [element stringValue]];

		[pool release];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (const char*)UTF8String
{
	return s->cString;
	/* TODO: Implement! */
	@throw [OFNotImplementedException exceptionWithClass: isa
						    selector: _cmd];
}

- (const char*)cStringWithEncoding: (of_string_encoding_t)encoding
{
	switch (encoding) {
	case OF_STRING_ENCODING_UTF_8:
		return s->cString;
	case OF_STRING_ENCODING_ASCII:
		if (s->UTF8)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: isa];

	/* TODO: Implement! */
		return s->cString;
	default:
		@throw [OFNotImplementedException exceptionWithClass: isa
							    selector: _cmd];
	@throw [OFNotImplementedException exceptionWithClass: isa
						    selector: _cmd];
	}
}

- (size_t)length
{
	@throw [OFNotImplementedException exceptionWithClass: isa
	return s->length;
						    selector: _cmd];
}

- (size_t)UTF8StringLength
{
	return s->cStringLength;
	/* TODO: Implement! */
	@throw [OFNotImplementedException exceptionWithClass: isa
						    selector: _cmd];
}

- (size_t)cStringLengthWithEncoding: (of_string_encoding_t)encoding
{
	switch (encoding) {
	/* TODO: Implement! */
	case OF_STRING_ENCODING_UTF_8:
		return s->cStringLength;
	case OF_STRING_ENCODING_ASCII:
		if (s->UTF8)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: isa];

		return s->cStringLength;
	@throw [OFNotImplementedException exceptionWithClass: isa
						    selector: _cmd];
}

	default:
		@throw [OFNotImplementedException exceptionWithClass: isa
							    selector: _cmd];
	}
}

- (of_unichar_t)characterAtIndex: (size_t)index
{
	@throw [OFNotImplementedException exceptionWithClass: isa
						    selector: _cmd];
}

- (void)getCharacters: (of_unichar_t*)buffer
	      inRange: (of_range_t)range
{
	size_t i;

	for (i = 0; i < range.length; i++)
		buffer[i] = [self characterAtIndex: range.start + i];
}

- (BOOL)isEqual: (id)object
{
	OFAutoreleasePool *pool;
	OFString *otherString;
	const of_unichar_t *unicodeString, *otherUnicodeString;
	size_t length;

	if (![object isKindOfClass: [OFString class]])
		return NO;

	otherString = object;
	length = [self length];

	if ([otherString UTF8StringLength] != s->cStringLength ||
	if ([otherString length] != length)
	    otherString->s->length != s->length)
		return NO;

	pool = [[OFAutoreleasePool alloc] init];
	if (strcmp(s->cString, otherString->s->cString))

	unicodeString = [self unicodeString];
	otherUnicodeString = [otherString unicodeString];

	if (memcmp(unicodeString, otherUnicodeString,
	    length * sizeof(of_unichar_t))) {
		[pool release];
		return NO;
	}

	[pool release];

	return YES;
}

- copy
{
	return [self retain];
}

- mutableCopy
{
	return [[OFMutableString alloc] initWithString: self];
}

- (of_comparison_result_t)compare: (id)object
{
	OFAutoreleasePool *pool;
	OFString *otherString;
	const of_unichar_t *unicodeString, *otherUnicodeString;
	size_t otherCStringLength, minimumCStringLength;
	size_t i, minimumLength;
	int compare;

	if (![object isKindOfClass: [OFString class]])
		@throw [OFInvalidArgumentException exceptionWithClass: isa
							     selector: _cmd];

	otherString = object;
	otherCStringLength = [otherString UTF8StringLength];
	minimumCStringLength = (s->cStringLength > otherCStringLength
	    ? otherCStringLength : s->cStringLength);
	minimumLength = ([self length] > [otherString length]
	    ? [otherString length] : [self length]);

	pool = [[OFAutoreleasePool alloc] init];

	unicodeString = [self unicodeString];
	if ((compare = memcmp(s->cString, [otherString UTF8String],
	    minimumCStringLength)) == 0) {
		if (s->cStringLength > otherCStringLength)
	otherUnicodeString = [otherString unicodeString];

	for (i = 0; i < minimumLength; i++) {
		if (unicodeString[i] > otherUnicodeString[i]) {
			[pool release];
			return OF_ORDERED_DESCENDING;
		}
		if (s->cStringLength < otherCStringLength)

		if (unicodeString[i] < otherUnicodeString[i]) {
			[pool release];
			return OF_ORDERED_ASCENDING;
		return OF_ORDERED_SAME;
	}

	if (compare > 0)
		}
	}

	[pool release];

	if ([self length] > [otherString length])
		return OF_ORDERED_DESCENDING;
	if ([self length] < [otherString length])
		return OF_ORDERED_ASCENDING;
	else
		return OF_ORDERED_ASCENDING;

	return OF_ORDERED_SAME;
}

- (of_comparison_result_t)caseInsensitiveCompare: (OFString*)otherString
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	const char *otherCString;
	size_t i, j, otherCStringLength, minimumCStringLength;
	const of_unichar_t *string, *otherUnicodeString;
	size_t i, length, otherLength, minimumLength;
	int compare;

	if (![otherString isKindOfClass: [OFString class]])
		@throw [OFInvalidArgumentException exceptionWithClass: isa
							     selector: _cmd];

	otherCString = [otherString UTF8String];
	otherCStringLength = [otherString UTF8StringLength];
	string = [self unicodeString];
	otherUnicodeString = [otherString unicodeString];
	length = [self length];
	otherLength = [otherString length];

	if (!s->UTF8) {
		minimumCStringLength = (s->cStringLength > otherCStringLength
		    ? otherCStringLength : s->cStringLength);
	minimumLength = (length > otherLength ? otherLength : length);

		if ((compare = memcasecmp(s->cString, otherCString,
		    minimumCStringLength)) == 0) {
			if (s->cStringLength > otherCStringLength)
	for (i = 0; i < minimumLength; i++) {
		of_unichar_t c = string[i];
				return OF_ORDERED_DESCENDING;
			if (s->cStringLength < otherCStringLength)
		of_unichar_t oc = otherUnicodeString[i];
				return OF_ORDERED_ASCENDING;
			return OF_ORDERED_SAME;
		}

		if (compare > 0)

		if (c >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {
			of_unichar_t tc =
			return OF_ORDERED_DESCENDING;
		else
			return OF_ORDERED_ASCENDING;
	}

	i = j = 0;

			    of_unicode_casefolding_table[c >> 8][c & 0xFF];

			if (tc)
				c = tc;
		}
	while (i < s->cStringLength && j < otherCStringLength) {
		of_unichar_t c1, c2;
		size_t l1, l2;

		l1 = of_string_utf8_to_unicode(s->cString + i,
		    s->cStringLength - i, &c1);
		l2 = of_string_utf8_to_unicode(otherCString + j,
		    otherCStringLength - j, &c2);

		if (l1 == 0 || l2 == 0 || c1 > 0x10FFFF || c2 > 0x10FFFF)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: isa];

		if (c1 >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {
		if (oc >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {
			of_unichar_t tc =
			    of_unicode_casefolding_table[c1 >> 8][c1 & 0xFF];
			    of_unicode_casefolding_table[oc >> 8][oc & 0xFF];

			if (tc)
				c1 = tc;
				oc = tc;
		}

		if (c2 >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {
			of_unichar_t tc =
			    of_unicode_casefolding_table[c2 >> 8][c2 & 0xFF];

			if (tc)
		if (c > oc) {
				c2 = tc;
		}

			[pool release];
		if (c1 > c2)
			return OF_ORDERED_DESCENDING;
		}
		if (c1 < c2)
		if (c < oc) {
			[pool release];
			return OF_ORDERED_ASCENDING;

		}
		i += l1;
		j += l2;
	}

	[pool release];
	if (s->cStringLength - i > otherCStringLength - j)

	if (length > otherLength)
		return OF_ORDERED_DESCENDING;
	else if (s->cStringLength - i < otherCStringLength - j)
	if (length < otherLength)
		return OF_ORDERED_ASCENDING;

	return OF_ORDERED_SAME;
}

- (uint32_t)hash
{
	const of_unichar_t *unicodeString = [self unicodeString];
	size_t i, length = [self length];
	uint32_t hash;
	size_t i;

	OF_HASH_INIT(hash);

	for (i = 0; i < s->cStringLength; i++)
		OF_HASH_ADD(hash, s->cString[i]);
	for (i = 0; i < length; i++) {
		const of_unichar_t c = unicodeString[i];

		OF_HASH_ADD(hash, (c & 0xFF000000) >> 24);
		OF_HASH_ADD(hash, (c & 0x00FF0000) >> 16);
		OF_HASH_ADD(hash, (c & 0x00FF0000) >>  8);
		OF_HASH_ADD(hash, c & 0xFF);
	}

	OF_HASH_FINALIZE(hash);

	return hash;
}

- (OFString*)description
{
	return [[self copy] autorelease];
}

- (OFXMLElement*)XMLElementBySerializing
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	OFXMLElement *element;
	OFString *className;

	if ([self isKindOfClass: [OFConstantString class]])
		className = @"OFString";
	if ([self isKindOfClass: [OFMutableString class]])
		className = @"OFMutableString";
	else
		className = [self className];
		className = @"OFString";

	element = [OFXMLElement elementWithName: className
				      namespace: OF_SERIALIZATION_NS
				    stringValue: self];

	[element retain];
	[pool release];
	[element autorelease];

	return element;
}

- (of_unichar_t)characterAtIndex: (size_t)index
- (size_t)indexOfFirstOccurrenceOfString: (OFString*)string
{
	OFAutoreleasePool *pool;
	of_unichar_t character;

	const of_unichar_t *unicodeString, *searchString;
	size_t i, length, searchLength;
	if (index >= s->length)
		@throw [OFOutOfRangeException exceptionWithClass: isa];

	if (!s->UTF8)
	if ((searchLength = [string length]) == 0)
		return s->cString[index];

		return [self length];
	index = of_string_index_to_position(s->cString, index,
	    s->cStringLength);

	if (!of_string_utf8_to_unicode(s->cString + index,
	    s->cStringLength - index, &character))
		@throw [OFInvalidEncodingException exceptionWithClass: isa];

	return character;
}

	if (searchLength > (length = [self length]))
		return OF_INVALID_INDEX;

	pool = [[OFAutoreleasePool alloc] init];
- (size_t)indexOfFirstOccurrenceOfString: (OFString*)string
{
	const char *cString = [string UTF8String];
	size_t i, cStringLength = [string UTF8StringLength];

	unicodeString = [self unicodeString];
	searchString = [string unicodeString];

	for (i = 0; i <= length - searchLength; i++) {
		if (!memcmp(unicodeString + i, searchString,
	if (cStringLength == 0)
		return 0;

		    searchLength * sizeof(of_unichar_t))) {
			[pool release];
			return i;
		}
	if (cStringLength > s->cStringLength)
		return OF_INVALID_INDEX;

	for (i = 0; i <= s->cStringLength - cStringLength; i++)
	}

		if (!memcmp(s->cString + i, cString, cStringLength))
			return of_string_position_to_index(s->cString, i);
	[pool release];

	return OF_INVALID_INDEX;
}

- (size_t)indexOfLastOccurrenceOfString: (OFString*)string
{
	OFAutoreleasePool *pool;
	const char *cString = [string UTF8String];
	size_t i, cStringLength = [string UTF8StringLength];
	const of_unichar_t *unicodeString, *searchString;
	size_t i, length, searchLength;

	if (cStringLength == 0)
		return of_string_position_to_index(s->cString,
	if ((searchLength = [string length]) == 0)
		return [self length];
		    s->cStringLength);

	if (cStringLength > s->cStringLength)
	if (searchLength > (length = [self length]))
		return OF_INVALID_INDEX;

	pool = [[OFAutoreleasePool alloc] init];
	for (i = s->cStringLength - cStringLength;; i--) {
		if (!memcmp(s->cString + i, cString, cStringLength))
			return of_string_position_to_index(s->cString, i);

		/* Did not match and we're at the last char */

	unicodeString = [self unicodeString];
	searchString = [string unicodeString];

	for (i = length - searchLength;; i--) {
		if (!memcmp(unicodeString + i, searchString,
		    searchLength * sizeof(of_unichar_t))) {
			[pool release];
			return i;
		}

		/* Did not match and we're at the last character */
		if (i == 0)
			break;
	}
			return OF_INVALID_INDEX;
	}

	[pool release];

	return OF_INVALID_INDEX;
}

- (BOOL)containsString: (OFString*)string
{
	OFAutoreleasePool *pool;
	const char *cString = [string UTF8String];
	size_t i, cStringLength = string->s->cStringLength;
	const of_unichar_t *unicodeString, *searchString;
	size_t i, length, searchLength;

	if (cStringLength == 0)
	if ((searchLength = [string length]) == 0)
		return YES;

	if (cStringLength > s->cStringLength)
	if (searchLength > (length = [self length]))
		return NO;

	pool = [[OFAutoreleasePool alloc] init];
	for (i = 0; i <= s->cStringLength - cStringLength; i++)
		if (!memcmp(s->cString + i, cString, cStringLength))

	unicodeString = [self unicodeString];
	searchString = [string unicodeString];

	for (i = 0; i <= length - searchLength; i++) {
		if (!memcmp(unicodeString + i, searchString,
		    searchLength * sizeof(of_unichar_t))) {
			[pool release];
			return YES;
		}
	}

	[pool release];

	return NO;
}

- (OFString*)substringWithRange: (of_range_t)range
{
	size_t start = range.start;
	size_t end = range.start + range.length;
	OFAutoreleasePool *pool;
	OFString *ret;

	if (end > s->length)
	if (range.start + range.length > [self length])
		@throw [OFOutOfRangeException exceptionWithClass: isa];

	if (s->UTF8) {
	pool = [[OFAutoreleasePool alloc] init];
		start = of_string_index_to_position(s->cString, start,
		    s->cStringLength);
		end = of_string_index_to_position(s->cString, end,
		    s->cStringLength);
	}

	ret = [[OFString alloc]
	    initWithUnicodeString: [self unicodeString] + range.start
			   length: range.length];
	[pool release];

	return [ret autorelease];
	return [OFString stringWithUTF8String: s->cString + start
				       length: end - start];
}

- (OFString*)stringByAppendingString: (OFString*)string
{
	OFMutableString *new;

	new = [OFMutableString stringWithString: self];

	[new makeImmutable];

	return new;
}

- (BOOL)hasPrefix: (OFString*)prefix
{
	OFAutoreleasePool *pool;
	of_unichar_t *tmp;
	const of_unichar_t *prefixString;
	size_t cStringLength = [prefix UTF8StringLength];
	size_t prefixLength;
	int compare;

	if (cStringLength > s->cStringLength)
	if ((prefixLength = [prefix length]) > [self length])
		return NO;

	tmp = alloca(prefixLength * sizeof(of_unichar_t));
	[self getCharacters: tmp
		    inRange: of_range(0, prefixLength)];
	return !memcmp(s->cString, [prefix UTF8String], cStringLength);

	pool = [[OFAutoreleasePool alloc] init];

	prefixString = [prefix unicodeString];
	compare = memcmp(tmp, prefixString,
	    prefixLength * sizeof(of_unichar_t));

	[pool release];

	return !compare;
}

- (BOOL)hasSuffix: (OFString*)suffix
{
	OFAutoreleasePool *pool;
	of_unichar_t *tmp;
	const of_unichar_t *suffixString;
	size_t cStringLength = [suffix UTF8StringLength];
	size_t length, suffixLength;
	int compare;

	if (cStringLength > s->cStringLength)
	if ((suffixLength = [suffix length]) > [self length])
		return NO;

	length = [self length];
	return !memcmp(s->cString + (s->cStringLength - cStringLength),
	    [suffix UTF8String], cStringLength);

	tmp = alloca(suffixLength * sizeof(of_unichar_t));
	[self getCharacters: tmp
		    inRange: of_range(length - suffixLength, suffixLength)];

	pool = [[OFAutoreleasePool alloc] init];

	suffixString = [suffix unicodeString];
	compare = memcmp(tmp, suffixString,
	    suffixLength * sizeof(of_unichar_t));

	[pool release];

	return !compare;
}

- (OFArray*)componentsSeparatedByString: (OFString*)delimiter
{
	OFAutoreleasePool *pool;
	OFMutableArray *array;
	const char *cString = [delimiter UTF8String];
	size_t cStringLength = [delimiter UTF8StringLength];
	OFMutableArray *array = [OFMutableArray array];
	const of_unichar_t *string, *delimiterString;
	size_t length = [self length];
	size_t delimiterLength = [delimiter length];
	size_t i, last;

	array = [OFMutableArray array];
	pool = [[OFAutoreleasePool alloc] init];

	string = [self unicodeString];
	delimiterString = [delimiter unicodeString];
	if (cStringLength > s->cStringLength) {

	if (delimiterLength > length) {
		[array addObject: [[self copy] autorelease]];
		[array makeImmutable];

		[pool release];

		return array;
	}

	for (i = 0, last = 0; i <= s->cStringLength - cStringLength; i++) {
		if (memcmp(s->cString + i, cString, cStringLength))
	for (i = 0, last = 0; i <= length - delimiterLength; i++) {
		if (memcmp(string + i, delimiterString,
		    delimiterLength * sizeof(of_unichar_t)))
			continue;

		[array addObject:
		    [OFString stringWithUTF8String: s->cString + last
					    length: i - last]];
		i += cStringLength - 1;
		[array addObject: [self substringWithRange:
		    of_range(last, i - last)]];

		i += delimiterLength - 1;
		last = i + 1;
	}
	[array addObject: [OFString stringWithUTF8String: s->cString + last]];
	[array addObject:
	    [self substringWithRange: of_range(last, length - last)]];

	[array makeImmutable];

	[pool release];

	return array;
}

- (OFArray*)pathComponents
{
	OFMutableArray *ret;
	OFAutoreleasePool *pool;
	const of_unichar_t *string;
	size_t i, last = 0, pathCStringLength = s->cStringLength;
	size_t i, last = 0, length = [self length];

	ret = [OFMutableArray array];

	if (pathCStringLength == 0)
	if (length == 0)
		return ret;

	pool = [[OFAutoreleasePool alloc] init];

	string = [self unicodeString];

#ifndef _WIN32
	if (s->cString[pathCStringLength - 1] == OF_PATH_DELIMITER)
	if (string[length - 1] == OF_PATH_DELIMITER)
#else
	if (s->cString[pathCStringLength - 1] == '/' ||
	if (string[length - 1] == '/' || string[length - 1] == '\\')
	    s->cString[pathCStringLength - 1] == '\\')
#endif
		pathCStringLength--;
		length--;

	for (i = 0; i < pathCStringLength; i++) {
	for (i = 0; i < length; i++) {
#ifndef _WIN32
		if (s->cString[i] == OF_PATH_DELIMITER) {
		if (string[i] == OF_PATH_DELIMITER) {
#else
		if (s->cString[i] == '/' || s->cString[i] == '\\') {
		if (string[i] == '/' || string[i] == '\\') {
#endif
			[ret addObject:
			    [OFString stringWithUTF8String: s->cString + last
						    length: i - last]];
			[ret addObject: [self substringWithRange:
			    of_range(last, i - last)]];

			last = i + 1;
		}
	}

	[ret addObject: [OFString stringWithUTF8String: s->cString + last
	[ret addObject: [self substringWithRange: of_range(last, i - last)]];
						length: i - last]];

	[ret makeImmutable];

	[pool release];

	return ret;
}

- (OFString*)lastPathComponent
{
	OFAutoreleasePool *pool;
	const of_unichar_t *string;
	size_t pathCStringLength = s->cStringLength;
	size_t length = [self length];
	ssize_t i;

	if (pathCStringLength == 0)
	if (length == 0)
		return @"";

	pool = [[OFAutoreleasePool alloc] init];

	string = [self unicodeString];

#ifndef _WIN32
	if (s->cString[pathCStringLength - 1] == OF_PATH_DELIMITER)
	if (string[length - 1] == OF_PATH_DELIMITER)
#else
	if (s->cString[pathCStringLength - 1] == '/' ||
	if (string[length - 1] == '/' || string[length - 1] == '\\')
	    s->cString[pathCStringLength - 1] == '\\')
#endif
		pathCStringLength--;
		length--;

	for (i = pathCStringLength - 1; i >= 0; i--) {
	for (i = length - 1; i >= 0; i--) {
#ifndef _WIN32
		if (s->cString[i] == OF_PATH_DELIMITER) {
		if (string[i] == OF_PATH_DELIMITER) {
#else
		if (s->cString[i] == '/' || s->cString[i] == '\\') {
		if (string[i] == '/' || string[i] == '\\') {
#endif
			i++;
			break;
		}
	}

	[pool release];

	/*
	 * Only one component, but the trailing delimiter might have been
	 * removed, so return a new string anyway.
	 */
	if (i < 0)
		i = 0;

	return [OFString stringWithUTF8String: s->cString + i
	return [self substringWithRange: of_range(i, length - i)];
				       length: pathCStringLength - i];
}

- (OFString*)stringByDeletingLastPathComponent
{
	OFAutoreleasePool *pool;
	const of_unichar_t *string;
	size_t i, pathCStringLength = s->cStringLength;
	size_t i, length = [self length];

	if (pathCStringLength == 0)
	if (length == 0)
		return @"";

	pool = [[OFAutoreleasePool alloc] init];

	string = [self unicodeString];

#ifndef _WIN32
	if (s->cString[pathCStringLength - 1] == OF_PATH_DELIMITER)
	if (string[length - 1] == OF_PATH_DELIMITER)
#else
	if (s->cString[pathCStringLength - 1] == '/' ||
	if (string[length - 1] == '/' || string[length - 1] == '\\')
	    s->cString[pathCStringLength - 1] == '\\')
#endif
		pathCStringLength--;
		length--;

	if (pathCStringLength == 0)
		return [OFString stringWithUTF8String: s->cString
	if (length == 0) {
		[pool release];
		return [self substringWithRange: of_range(0, 1)];
					       length: 1];

	for (i = pathCStringLength - 1; i >= 1; i--)
	}

	for (i = length - 1; i >= 1; i--) {
#ifndef _WIN32
		if (s->cString[i] == OF_PATH_DELIMITER)
		if (string[i] == OF_PATH_DELIMITER) {
#else
		if (s->cString[i] == '/' || s->cString[i] == '\\')
		if (string[i] == '/' || string[i] == '\\') {
#endif
			[pool release];
			return [OFString stringWithUTF8String: s->cString
			return [self substringWithRange: of_range(0, i)];
						       length: i];

		}
	}

#ifndef _WIN32
	if (s->cString[0] == OF_PATH_DELIMITER)
	if (string[0] == OF_PATH_DELIMITER) {
#else
	if (s->cString[0] == '/' || s->cString[0] == '\\')
	if (string[0] == '/' || string[0] == '\\') {
#endif
		[pool release];
		return [OFString stringWithUTF8String: s->cString
					       length: 1];
		return [self substringWithRange: of_range(0, 1)];
	}

	[pool release];

	return @".";
}

- (intmax_t)decimalValue
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	const char *cString = s->cString;
	size_t cStringLength = s->cStringLength;
	const of_unichar_t *string = [self unicodeString];
	size_t length = [self length];
	int i = 0;
	intmax_t value = 0;
	BOOL expectWhitespace = NO;

	while (*cString == ' ' || *cString == '\t' || *cString == '\n' ||
	    *cString == '\r' || *cString == '\f') {
		cString++;
		cStringLength--;
	while (*string == ' ' || *string == '\t' || *string == '\n' ||
	    *string == '\r' || *string == '\f') {
		string++;
		length--;
	}

	if (length == 0) {
		[pool release];
		return 0;
	}

	if (cString[0] == '-' || cString[0] == '+')
	if (string[0] == '-' || string[0] == '+')
		i++;

	for (; i < cStringLength; i++) {
	for (; i < length; i++) {
		if (expectWhitespace) {
			if (cString[i] != ' ' && cString[i] != '\t' &&
			    cString[i] != '\n' && cString[i] != '\r' &&
			    cString[i] != '\f')
			if (string[i] != ' ' && string[i] != '\t' &&
			    string[i] != '\n' && string[i] != '\r' &&
			    string[i] != '\f')
				@throw [OFInvalidFormatException
				    exceptionWithClass: isa];
			continue;
		}

		if (cString[i] >= '0' && cString[i] <= '9') {
		if (string[i] >= '0' && string[i] <= '9') {
			if (INTMAX_MAX / 10 < value ||
			    INTMAX_MAX - value * 10 < cString[i] - '0')
			    INTMAX_MAX - value * 10 < string[i] - '0')
				@throw [OFOutOfRangeException
				    exceptionWithClass: isa];

			value = (value * 10) + (cString[i] - '0');
		} else if (cString[i] == ' ' || cString[i] == '\t' ||
		    cString[i] == '\n' || cString[i] == '\r' ||
		    cString[i] == '\f')
			value = (value * 10) + (string[i] - '0');
		} else if (string[i] == ' ' || string[i] == '\t' ||
		    string[i] == '\n' || string[i] == '\r' ||
		    string[i] == '\f')
			expectWhitespace = YES;
		else
			@throw [OFInvalidFormatException
			    exceptionWithClass: isa];
	}

	if (cString[0] == '-')
	if (string[0] == '-')
		value *= -1;

	[pool release];

	return value;
}

- (uintmax_t)hexadecimalValue
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	const char *cString = s->cString;
	size_t cStringLength = s->cStringLength;
	const of_unichar_t *string = [self unicodeString];
	size_t length = [self length];
	int i = 0;
	uintmax_t value = 0;
	BOOL expectWhitespace = NO, foundValue = NO;

	while (*cString == ' ' || *cString == '\t' || *cString == '\n' ||
	    *cString == '\r' || *cString == '\f') {
		cString++;
		cStringLength--;
	while (*string == ' ' || *string == '\t' || *string == '\n' ||
	    *string == '\r' || *string == '\f') {
		string++;
		length--;
	}

	if (cStringLength == 0)
	if (length == 0) {
		[pool release];
		return 0;

	if (cStringLength >= 2 && cString[0] == '0' && cString[1] == 'x')
	}

	if (length >= 2 && string[0] == '0' && string[1] == 'x')
		i = 2;
	else if (cStringLength >= 1 && (cString[0] == 'x' || cString[0] == '$'))
	else if (length >= 1 && (string[0] == 'x' || string[0] == '$'))
		i = 1;

	for (; i < cStringLength; i++) {
	for (; i < length; i++) {
		uintmax_t newValue;

		if (expectWhitespace) {
			if (cString[i] != ' ' && cString[i] != '\t' &&
			    cString[i] != '\n' && cString[i] != '\r' &&
			    cString[i] != '\f')
			if (string[i] != ' ' && string[i] != '\t' &&
			    string[i] != '\n' && string[i] != '\r' &&
			    string[i] != '\f')
				@throw [OFInvalidFormatException
				    exceptionWithClass: isa];
			continue;
		}

		if (cString[i] >= '0' && cString[i] <= '9') {
			newValue = (value << 4) | (cString[i] - '0');
		if (string[i] >= '0' && string[i] <= '9') {
			newValue = (value << 4) | (string[i] - '0');
			foundValue = YES;
		} else if (cString[i] >= 'A' && cString[i] <= 'F') {
			newValue = (value << 4) | (cString[i] - 'A' + 10);
		} else if (string[i] >= 'A' && string[i] <= 'F') {
			newValue = (value << 4) | (string[i] - 'A' + 10);
			foundValue = YES;
		} else if (cString[i] >= 'a' && cString[i] <= 'f') {
			newValue = (value << 4) | (cString[i] - 'a' + 10);
		} else if (string[i] >= 'a' && string[i] <= 'f') {
			newValue = (value << 4) | (string[i] - 'a' + 10);
			foundValue = YES;
		} else if (cString[i] == 'h' || cString[i] == ' ' ||
		    cString[i] == '\t' || cString[i] == '\n' ||
		    cString[i] == '\r' || cString[i] == '\f') {
		} else if (string[i] == 'h' || string[i] == ' ' ||
		    string[i] == '\t' || string[i] == '\n' ||
		    string[i] == '\r' || string[i] == '\f') {
			expectWhitespace = YES;
			continue;
		} else
			@throw [OFInvalidFormatException
			    exceptionWithClass: isa];

		if (newValue < value)
			@throw [OFOutOfRangeException exceptionWithClass: isa];

		value = newValue;
	}

	if (!foundValue)
		@throw [OFInvalidFormatException exceptionWithClass: isa];

	[pool release];

	return value;
}

- (float)floatValue
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	const char *cString = s->cString;
	const char *cString = [self UTF8String];
	char *endPointer = NULL;
	float value;

	while (*cString == ' ' || *cString == '\t' || *cString == '\n' ||
	    *cString == '\r' || *cString == '\f')
		cString++;

	value = strtof(cString, &endPointer);

	/* Check if there are any invalid chars left */
	if (endPointer != NULL)
		for (; *endPointer != '\0'; endPointer++)
			if (*endPointer != ' ' && *endPointer != '\t' &&
			    *endPointer != '\n' && *endPointer != '\r' &&
			    *endPointer != '\f')
				@throw [OFInvalidFormatException
				    exceptionWithClass: isa];

	[pool release];

	return value;
}

- (double)doubleValue
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	const char *cString = s->cString;
	const char *cString = [self UTF8String];
	char *endPointer = NULL;
	double value;

	while (*cString == ' ' || *cString == '\t' || *cString == '\n' ||
	    *cString == '\r' || *cString == '\f')
		cString++;

	value = strtod(cString, &endPointer);

	/* Check if there are any invalid chars left */
	if (endPointer != NULL)
		for (; *endPointer != '\0'; endPointer++)
			if (*endPointer != ' ' && *endPointer != '\t' &&
			    *endPointer != '\n' && *endPointer != '\r' &&
			    *endPointer != '\f')
				@throw [OFInvalidFormatException
				    exceptionWithClass: isa];

	[pool release];

	return value;
}

- (const of_unichar_t*)unicodeString
{
	OFObject *object = [[[OFObject alloc] init] autorelease];
	size_t length = [self length];
	of_unichar_t *ret;
	size_t i, j;

	ret = [object allocMemoryForNItems: s->length + 1
	ret = [object allocMemoryForNItems: length + 1
				    ofSize: sizeof(of_unichar_t)];

	[self getCharacters: ret
	i = 0;
	j = 0;

		    inRange: of_range(0, length)];
	while (i < s->cStringLength) {
		of_unichar_t c;
		size_t cLen;

		cLen = of_string_utf8_to_unicode(s->cString + i,
		    s->cStringLength - i, &c);

		if (cLen == 0 || c > 0x10FFFF)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: isa];

		ret[j++] = c;
		i += cLen;
	}

	ret[j] = 0;
	ret[length] = 0;

	return ret;
}

- (const uint16_t*)UTF16String
{
	OFObject *object = [[[OFObject alloc] init] autorelease];
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	const of_unichar_t *unicodeString = [self unicodeString];
	size_t length = [self length];
	uint16_t *ret;
	size_t i, j;

	/* Allocate memory for the worst case */
	ret = [object allocMemoryForNItems: s->length * 2 + 1
	ret = [object allocMemoryForNItems: length * 2 + 1
				    ofSize: sizeof(uint16_t)];

	i = 0;
	j = 0;

	while (i < s->cStringLength) {
		of_unichar_t c;
	for (i = 0; i < length; i++) {
		of_unichar_t c = unicodeString[i];
		size_t cLen;

		cLen = of_string_utf8_to_unicode(s->cString + i,
		    s->cStringLength - i, &c);

		if (cLen == 0 || c > 0x10FFFF)
		if (c > 0x10FFFF)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: isa];

		if (c > 0xFFFF) {
			c -= 0x10000;
			ret[j++] = of_bswap16_if_le(0xD800 | (c >> 10));
			ret[j++] = of_bswap16_if_le(0xDC00 | (c & 0x3FF));
		} else
			ret[j++] = of_bswap16_if_le(c);

		i += cLen;
	}

	ret[j] = 0;

	@try {
		ret = [object resizeMemory: ret
				  toNItems: j + 1
				    ofSize: sizeof(uint16_t)];
	} @catch (OFOutOfMemoryException *e) {
		/* We don't care, as we only tried to make it smaller */
	}

	[pool release];

	return ret;
}

- (void)writeToFile: (OFString*)path
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	OFFile *file;

	file = [OFFile fileWithPath: path
			       mode: @"wb"];
	[file writeString: self];

	[pool release];
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateLinesUsingBlock: (of_string_line_enumeration_block_t)block
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	const char *cString = s->cString;
	const char *last = cString;
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init], *pool2;
	const of_unichar_t *string = [self unicodeString];
	size_t i, last = 0, length = [self length];
	BOOL stop = NO, lastCarriageReturn = NO;

	pool2 = [[OFAutoreleasePool alloc] init];
	while (!stop && *cString != 0) {
		if (lastCarriageReturn && *cString == '\n') {

	for (i = 0; i < length && !stop; i++) {
		if (lastCarriageReturn && string[i] == '\n') {
			lastCarriageReturn = NO;

			cString++;
			last++;

			continue;
		}

		if (*cString == '\n' || *cString == '\r') {
		if (string[i] == '\n' || string[i] == '\r') {
			block([OFString
			    stringWithUTF8String: last
					  length: cString - last], &stop);
			last = cString + 1;
			block([self substringWithRange:
			    of_range(last, i - last)], &stop);
			last = i + 1;

			[pool releaseObjects];
			[pool2 releaseObjects];
		}

		lastCarriageReturn = (*cString == '\r');
		lastCarriageReturn = (string[i] == '\r');
		cString++;
	}

	if (!stop)
		block([OFString stringWithUTF8String: last
					      length: cString - last], &stop);
		block([self substringWithRange: of_range(last, i - last)],
		    &stop);

	[pool release];
}
#endif
@end