ObjFW  Check-in [9cfefe9c30]

Overview
Comment:Move UTF-8 functions to OFString_UTF8.m.
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SHA3-256: 9cfefe9c30b7d22f346c2af13be6c92fb3fc1b888c18f805d7ab1dab58885003
User & Date: js on 2012-10-13 20:50:09
Other Links: manifest | tags
Context
2012-10-13
21:06
of_bswap* -> OF_BSWAP*. check-in: 1cb8fee5c3 user: js tags: trunk
20:50
Move UTF-8 functions to OFString_UTF8.m. check-in: 9cfefe9c30 user: js tags: trunk
20:35
OFMutableString_UTF8: Add missing range check. check-in: 41bfdb858c user: js tags: trunk
Changes

Modified src/OFConstantString.m from [93ca41c6dc] to [0925478785].

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		@throw [OFOutOfMemoryException
		    exceptionWithClass: [self class]
			 requestedSize: sizeof(*ivars)];

	ivars->cString = cString;
	ivars->cStringLength = cStringLength;

	switch (of_string_check_utf8(ivars->cString, ivars->cStringLength,
	    &ivars->length)) {
	case 1:
		ivars->UTF8 = YES;
		break;
	case -1:
		free(ivars);
		@throw [OFInvalidEncodingException







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		@throw [OFOutOfMemoryException
		    exceptionWithClass: [self class]
			 requestedSize: sizeof(*ivars)];

	ivars->cString = cString;
	ivars->cStringLength = cStringLength;

	switch (of_string_utf8_check(ivars->cString, ivars->cStringLength,
	    &ivars->length)) {
	case 1:
		ivars->UTF8 = YES;
		break;
	case -1:
		free(ivars);
		@throw [OFInvalidEncodingException

Modified src/OFMutableString_UTF8.m from [e0a807cffb] to [e8d0af35fc].

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			table = startTable;
			tableSize = middleTableSize;
		} else {
			table = middleTable;
			tableSize = middleTableSize;
		}

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

		if (cLen == 0 || c > 0x10FFFF) {
			[self freeMemory: unicodeString];
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		}







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			table = startTable;
			tableSize = middleTableSize;
		} else {
			table = middleTable;
			tableSize = middleTableSize;
		}

		cLen = of_string_utf8_decode(s->cString + i,
		    s->cStringLength - i, &c);

		if (cLen == 0 || c > 0x10FFFF) {
			[self freeMemory: unicodeString];
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		}
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	}

	j = 0;

	for (i = 0; i < unicodeLen; i++) {
		size_t d;

		if ((d = of_string_unicode_to_utf8(unicodeString[i],
		    newCString + j)) == 0) {
			[self freeMemory: unicodeString];
			[self freeMemory: newCString];
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		}
		j += d;







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	}

	j = 0;

	for (i = 0; i < unicodeLen; i++) {
		size_t d;

		if ((d = of_string_utf8_encode(unicodeString[i],
		    newCString + j)) == 0) {
			[self freeMemory: unicodeString];
			[self freeMemory: newCString];
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		}
		j += d;
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}

- (void)setCharacter: (of_unichar_t)character
	     atIndex: (size_t)index
{
	char buffer[4];
	of_unichar_t c;
	size_t length, oldLength;

	if (s->UTF8)
		index = of_string_index_to_position(s->cString, index,
		    s->cStringLength);

	if (index > s->cStringLength)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];


	if (!(character & 0x80) && !(s->cString[index] & 0x80)) {
		s->hashed = NO;
		s->cString[index] = character;
		return;
	}

	if ((length = of_string_unicode_to_utf8(character, buffer)) == 0)
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];

	if ((oldLength = of_string_utf8_to_unicode(s->cString + index,
	    s->cStringLength - index, &c)) == 0)
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];

	s->hashed = NO;

	if (length == oldLength) {
		memcpy(s->cString + index, buffer, length);
		return;
	}

	if (length > oldLength) {
		s->cString = [self resizeMemory: s->cString
					   size: s->cStringLength - oldLength +
						 length + 1];

		memmove(s->cString + index + length,
		    s->cString + index + oldLength,
		    s->cStringLength - index - oldLength);
		memcpy(s->cString + index, buffer, length);

		s->cStringLength -= oldLength;
		s->cStringLength += length;
		s->cString[s->cStringLength] = '\0';

		if (character & 0x80)
			s->UTF8 = YES;

		return;
	}

	if (length < oldLength) {
		memmove(s->cString + index + length,
		    s->cString + index + oldLength,
		    s->cStringLength - index - oldLength);
		memcpy(s->cString + index, buffer, length);

		s->cStringLength -= oldLength;
		s->cStringLength += length;
		s->cString[s->cStringLength] = '\0';

		@try {
			s->cString = [self resizeMemory: s->cString
						   size: s->cStringLength + 1];
		} @catch (OFOutOfMemoryException *e) {
			/* We don't really care, as we only made it smaller */
		}

		return;
	}

	assert(0);
}

- (void)appendUTF8String: (const char*)UTF8String
{
	size_t UTF8StringLength = strlen(UTF8String);
	size_t length;

	if (UTF8StringLength >= 3 && !memcmp(UTF8String, "\xEF\xBB\xBF", 3)) {
		UTF8String += 3;
		UTF8StringLength -= 3;
	}

	switch (of_string_check_utf8(UTF8String, UTF8StringLength, &length)) {
	case 1:
		s->UTF8 = YES;
		break;
	case -1:
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];
	}







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}

- (void)setCharacter: (of_unichar_t)character
	     atIndex: (size_t)index
{
	char buffer[4];
	of_unichar_t c;
	size_t lenNew, lenOld;

	if (s->UTF8)
		index = of_string_utf8_get_position(s->cString, index,
		    s->cStringLength);

	if (index > s->cStringLength)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	/* Shortcut if old and new character both are ASCII */
	if (!(character & 0x80) && !(s->cString[index] & 0x80)) {
		s->hashed = NO;
		s->cString[index] = character;
		return;
	}

	if ((lenNew = of_string_utf8_encode(character, buffer)) == 0)
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];

	if ((lenOld = of_string_utf8_decode(s->cString + index,
	    s->cStringLength - index, &c)) == 0)
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];

	s->hashed = NO;

	if (lenNew == lenOld)
		memcpy(s->cString + index, buffer, lenNew);


	else if (lenNew > lenOld) {

		s->cString = [self resizeMemory: s->cString
					   size: s->cStringLength -
						 lenOld + lenNew + 1];

		memmove(s->cString + index + lenNew,
		    s->cString + index + lenOld,
		    s->cStringLength - index - lenOld);
		memcpy(s->cString + index, buffer, lenNew);

		s->cStringLength -= lenOld;
		s->cStringLength += lenNew;
		s->cString[s->cStringLength] = '\0';

		if (character & 0x80)
			s->UTF8 = YES;
	} else if (lenNew < lenOld) {




		memmove(s->cString + index + lenNew,
		    s->cString + index + lenOld,
		    s->cStringLength - index - lenOld);
		memcpy(s->cString + index, buffer, lenNew);

		s->cStringLength -= lenOld;
		s->cStringLength += lenNew;
		s->cString[s->cStringLength] = '\0';

		@try {
			s->cString = [self resizeMemory: s->cString
						   size: s->cStringLength + 1];
		} @catch (OFOutOfMemoryException *e) {
			/* We don't really care, as we only made it smaller */
		}
	} else



		assert(0);
}

- (void)appendUTF8String: (const char*)UTF8String
{
	size_t UTF8StringLength = strlen(UTF8String);
	size_t length;

	if (UTF8StringLength >= 3 && !memcmp(UTF8String, "\xEF\xBB\xBF", 3)) {
		UTF8String += 3;
		UTF8StringLength -= 3;
	}

	switch (of_string_utf8_check(UTF8String, UTF8StringLength, &length)) {
	case 1:
		s->UTF8 = YES;
		break;
	case -1:
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];
	}
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	size_t length;

	if (UTF8StringLength >= 3 && !memcmp(UTF8String, "\xEF\xBB\xBF", 3)) {
		UTF8String += 3;
		UTF8StringLength -= 3;
	}

	switch (of_string_check_utf8(UTF8String, UTF8StringLength, &length)) {
	case 1:
		s->UTF8 = YES;
		break;
	case -1:
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];
	}







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	size_t length;

	if (UTF8StringLength >= 3 && !memcmp(UTF8String, "\xEF\xBB\xBF", 3)) {
		UTF8String += 3;
		UTF8StringLength -= 3;
	}

	switch (of_string_utf8_check(UTF8String, UTF8StringLength, &length)) {
	case 1:
		s->UTF8 = YES;
		break;
	case -1:
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];
	}
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	size_t newCStringLength;

	if (index > s->length)
		@throw [OFOutOfRangeException
		    exceptionWithClass: [self class]];

	if (s->UTF8)
		index = of_string_index_to_position(s->cString, index,
		    s->cStringLength);

	newCStringLength = s->cStringLength + [string UTF8StringLength];
	s->hashed = NO;
	s->cString = [self resizeMemory: s->cString
				   size: newCStringLength + 1];








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	size_t newCStringLength;

	if (index > s->length)
		@throw [OFOutOfRangeException
		    exceptionWithClass: [self class]];

	if (s->UTF8)
		index = of_string_utf8_get_position(s->cString, index,
		    s->cStringLength);

	newCStringLength = s->cStringLength + [string UTF8StringLength];
	s->hashed = NO;
	s->cString = [self resizeMemory: s->cString
				   size: newCStringLength + 1];

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	if (end > s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	s->hashed = NO;
	s->length -= end - start;

	if (s->UTF8) {
		start = of_string_index_to_position(s->cString, start,
		    s->cStringLength);
		end = of_string_index_to_position(s->cString, end,
		    s->cStringLength);
	}

	memmove(s->cString + start, s->cString + end, s->cStringLength - end);
	s->cStringLength -= end - start;
	s->cString[s->cStringLength] = 0;








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	if (end > s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	s->hashed = NO;
	s->length -= end - start;

	if (s->UTF8) {
		start = of_string_utf8_get_position(s->cString, start,
		    s->cStringLength);
		end = of_string_utf8_get_position(s->cString, end,
		    s->cStringLength);
	}

	memmove(s->cString + start, s->cString + end, s->cStringLength - end);
	s->cStringLength -= end - start;
	s->cString[s->cStringLength] = 0;

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	if (end > s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	newLength = s->length - (end - start) + [replacement length];

	if (s->UTF8) {
		start = of_string_index_to_position(s->cString, start,
		    s->cStringLength);
		end = of_string_index_to_position(s->cString, end,
		    s->cStringLength);
	}

	newCStringLength = s->cStringLength - (end - start) +
	    [replacement UTF8StringLength];
	s->hashed = NO;
	s->cString = [self resizeMemory: s->cString







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	if (end > s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	newLength = s->length - (end - start) + [replacement length];

	if (s->UTF8) {
		start = of_string_utf8_get_position(s->cString, start,
		    s->cStringLength);
		end = of_string_utf8_get_position(s->cString, end,
		    s->cStringLength);
	}

	newCStringLength = s->cStringLength - (end - start) +
	    [replacement UTF8StringLength];
	s->hashed = NO;
	s->cString = [self resizeMemory: s->cString
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	const char *replacementString = [replacement UTF8String];
	size_t searchLength = [string UTF8StringLength];
	size_t replacementLength = [replacement UTF8StringLength];
	size_t i, last, newCStringLength, newLength;
	char *newCString;

	if (s->UTF8) {
		range.start = of_string_index_to_position(s->cString,
		    range.start, s->cStringLength);
		range.length = of_string_index_to_position(s->cString,
		    range.start + range.length, s->cStringLength) - range.start;
	}

	if (range.start + range.length > [self UTF8StringLength])
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if ([string UTF8StringLength] > range.length)







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	const char *replacementString = [replacement UTF8String];
	size_t searchLength = [string UTF8StringLength];
	size_t replacementLength = [replacement UTF8StringLength];
	size_t i, last, newCStringLength, newLength;
	char *newCString;

	if (s->UTF8) {
		range.start = of_string_utf8_get_position(s->cString,
		    range.start, s->cStringLength);
		range.length = of_string_utf8_get_position(s->cString,
		    range.start + range.length, s->cStringLength) - range.start;
	}

	if (range.start + range.length > [self UTF8StringLength])
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if ([string UTF8StringLength] > range.length)

Modified src/OFString+JSONValue.m from [a76e28c035] to [12270ead53].

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				if ((c1 & 0xFC00) == 0xDC00) {
					free(buffer);
					return nil;
				}

				/* Normal character */
				if ((c1 & 0xFC00) != 0xD800) {
					l = of_string_unicode_to_utf8(c1,
					    buffer + i);
					if (l == 0) {
						free(buffer);
						return nil;
					}

					i += l;







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				if ((c1 & 0xFC00) == 0xDC00) {
					free(buffer);
					return nil;
				}

				/* Normal character */
				if ((c1 & 0xFC00) != 0xD800) {
					l = of_string_utf8_encode(c1,
					    buffer + i);
					if (l == 0) {
						free(buffer);
						return nil;
					}

					i += l;
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					free(buffer);
					return nil;
				}

				c = (((c1 & 0x3FF) << 10) |
				    (c2 & 0x3FF)) + 0x10000;

				l = of_string_unicode_to_utf8(c, buffer + i);
				if (l == 0) {
					free(buffer);
					return nil;
				}

				i += l;
				*pointer += 11;







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					free(buffer);
					return nil;
				}

				c = (((c1 & 0x3FF) << 10) |
				    (c2 & 0x3FF)) + 0x10000;

				l = of_string_utf8_encode(c, buffer + i);
				if (l == 0) {
					free(buffer);
					return nil;
				}

				i += l;
				*pointer += 11;
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			if ((c1 & 0xFC00) == 0xDC00) {
				free(buffer);
				return nil;
			}

			/* Normal character */
			if ((c1 & 0xFC00) != 0xD800) {
				l = of_string_unicode_to_utf8(c1, buffer + i);
				if (l == 0) {
					free(buffer);
					return nil;
				}

				i += l;
				*pointer += 5;







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			if ((c1 & 0xFC00) == 0xDC00) {
				free(buffer);
				return nil;
			}

			/* Normal character */
			if ((c1 & 0xFC00) != 0xD800) {
				l = of_string_utf8_encode(c1, buffer + i);
				if (l == 0) {
					free(buffer);
					return nil;
				}

				i += l;
				*pointer += 5;
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			if (c2 == 0xFFFF) {
				free(buffer);
				return nil;
			}

			c = (((c1 & 0x3FF) << 10) | (c2 & 0x3FF)) + 0x10000;

			l = of_string_unicode_to_utf8(c, buffer + i);
			if (l == 0) {
				free(buffer);
				return nil;
			}

			i += l;
			*pointer += 11;







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			if (c2 == 0xFFFF) {
				free(buffer);
				return nil;
			}

			c = (((c1 & 0x3FF) << 10) | (c2 & 0x3FF)) + 0x10000;

			l = of_string_utf8_encode(c, buffer + i);
			if (l == 0) {
				free(buffer);
				return nil;
			}

			i += l;
			*pointer += 11;

Modified src/OFString+XMLUnescaping.m from [a0597bf098] to [d167de896a].

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			if (entity[i] >= '0' && entity[i] <= '9')
				c = (c * 10) + (entity[i] - '0');
			else
				return nil;
		}
	}

	if ((i = of_string_unicode_to_utf8(c, buffer)) == 0)
		return nil;
	buffer[i] = 0;

	return [OFString stringWithUTF8String: buffer
				       length: i];
}








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			if (entity[i] >= '0' && entity[i] <= '9')
				c = (c * 10) + (entity[i] - '0');
			else
				return nil;
		}
	}

	if ((i = of_string_utf8_encode(c, buffer)) == 0)
		return nil;
	buffer[i] = 0;

	return [OFString stringWithUTF8String: buffer
				       length: i];
}

Modified src/OFString.h from [3ded5f2be1] to [505bd888a0].

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#ifdef OF_HAVE_BLOCKS
typedef void (^of_string_line_enumeration_block_t)(OFString *line, BOOL *stop);
#endif

#ifdef __cplusplus
extern "C" {
#endif
extern int of_string_check_utf8(const char*, size_t, size_t*);
extern size_t of_string_unicode_to_utf8(of_unichar_t, char*);
extern size_t of_string_utf8_to_unicode(const char*, size_t, of_unichar_t*);
extern size_t of_string_position_to_index(const char*, size_t);
extern size_t of_string_index_to_position(const char*, size_t, size_t);
extern size_t of_unicode_string_length(const of_unichar_t*);
extern size_t of_utf16_string_length(const uint16_t*);
#ifdef __cplusplus
}
#endif

@class OFArray;







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#ifdef OF_HAVE_BLOCKS
typedef void (^of_string_line_enumeration_block_t)(OFString *line, BOOL *stop);
#endif

#ifdef __cplusplus
extern "C" {
#endif
extern int of_string_utf8_check(const char*, size_t, size_t*);
extern size_t of_string_utf8_encode(of_unichar_t, char*);
extern size_t of_string_utf8_decode(const char*, size_t, of_unichar_t*);
extern size_t of_string_utf8_get_index(const char*, size_t);
extern size_t of_string_utf8_get_position(const char*, size_t, size_t);
extern size_t of_unicode_string_length(const of_unichar_t*);
extern size_t of_utf16_string_length(const uint16_t*);
#ifdef __cplusplus
}
#endif

@class OFArray;

Modified src/OFString.m from [6a39e4a81c] to [2ae4fee8c1].

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}

void _reference_to_OFConstantString(void)
{
	[OFConstantString class];
}

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++) {
		/* No sign of UTF-8 here */
		if OF_LIKELY (!(cString[i] & 0x80))
			continue;

		UTF8 = 1;

		/* We're missing a start byte here */
		if OF_UNLIKELY (!(cString[i] & 0x40))
			return -1;

		/* 2 byte sequences for code points 0 - 127 are forbidden */
		if OF_UNLIKELY ((cString[i] & 0x7E) == 0x40)
			return -1;

		/* We have at minimum a 2 byte character -> check next byte */
		if OF_UNLIKELY (cStringLength <= i + 1 ||
		    (cString[i + 1] & 0xC0) != 0x80)
			return -1;

		/* Check if we have at minimum a 3 byte character */
		if OF_LIKELY (!(cString[i] & 0x20)) {
			i++;
			tmpLength--;
			continue;
		}

		/* We have at minimum a 3 byte char -> check second next byte */
		if OF_UNLIKELY (cStringLength <= i + 2 ||
		    (cString[i + 2] & 0xC0) != 0x80)
			return -1;

		/* Check if we have a 4 byte character */
		if OF_LIKELY (!(cString[i] & 0x10)) {
			i += 2;
			tmpLength -= 2;
			continue;
		}

		/* We have a 4 byte character -> check third next byte */
		if OF_UNLIKELY (cStringLength <= i + 3 ||
		    (cString[i + 3] & 0xC0) != 0x80)
			return -1;

		/*
		 * Just in case, check if there's a 5th character, which is
		 * forbidden by UTF-8
		 */
		if OF_UNLIKELY (cString[i] & 0x08)
			return -1;

		i += 3;
		tmpLength -= 3;
	}

	if (length != NULL)
		*length = tmpLength;

	return UTF8;
}

size_t
of_string_unicode_to_utf8(of_unichar_t character, char *buffer)
{
	size_t i = 0;

	if (character < 0x80) {
		buffer[i] = character;
		return 1;
	}
	if (character < 0x800) {
		buffer[i++] = 0xC0 | (character >> 6);
		buffer[i] = 0x80 | (character & 0x3F);
		return 2;
	}
	if (character < 0x10000) {
		buffer[i++] = 0xE0 | (character >> 12);
		buffer[i++] = 0x80 | (character >> 6 & 0x3F);
		buffer[i] = 0x80 | (character & 0x3F);
		return 3;
	}
	if (character < 0x110000) {
		buffer[i++] = 0xF0 | (character >> 18);
		buffer[i++] = 0x80 | (character >> 12 & 0x3F);
		buffer[i++] = 0x80 | (character >> 6 & 0x3F);
		buffer[i] = 0x80 | (character & 0x3F);
		return 4;
	}

	return 0;
}

size_t
of_string_utf8_to_unicode(const char *buffer_, size_t length, of_unichar_t *ret)
{
	const uint8_t *buffer = (const uint8_t*)buffer_;

	if (!(*buffer & 0x80)) {
		*ret = buffer[0];
		return 1;
	}

	if ((*buffer & 0xE0) == 0xC0) {
		if OF_UNLIKELY (length < 2)
			return 0;

		*ret = ((buffer[0] & 0x1F) << 6) | (buffer[1] & 0x3F);
		return 2;
	}

	if ((*buffer & 0xF0) == 0xE0) {
		if OF_UNLIKELY (length < 3)
			return 0;

		*ret = ((buffer[0] & 0x0F) << 12) | ((buffer[1] & 0x3F) << 6) |
		    (buffer[2] & 0x3F);
		return 3;
	}

	if ((*buffer & 0xF8) == 0xF0) {
		if OF_UNLIKELY (length < 4)
			return 0;

		*ret = ((buffer[0] & 0x07) << 18) | ((buffer[1] & 0x3F) << 12) |
		    ((buffer[2] & 0x3F) << 6) | (buffer[3] & 0x3F);
		return 4;
	}

	return 0;
}

size_t
of_string_position_to_index(const char *string, size_t position)
{
	size_t i, index = position;

	for (i = 0; i < position; i++)
		if OF_UNLIKELY ((string[i] & 0xC0) == 0x80)
			index--;

	return index;
}

size_t
of_string_index_to_position(const char *string, size_t index, size_t length)
{
	size_t i;

	for (i = 0; i <= index; i++)
		if OF_UNLIKELY ((string[i] & 0xC0) == 0x80)
			if (++index > length)
				return OF_INVALID_INDEX;

	return index;
}

size_t
of_unicode_string_length(const of_unichar_t *string)
{
	const of_unichar_t *string_ = string;

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







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}

void _reference_to_OFConstantString(void)
{
	[OFConstantString class];
}



































































































































































size_t
of_unicode_string_length(const of_unichar_t *string)
{
	const of_unichar_t *string_ = string;

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

	object = [[[OFObject alloc] init] autorelease];
	UTF8String = [object allocMemoryWithSize: (length * 4) + 1];

	for (i = 0; i < length; i++) {
		char buffer[4];
		size_t characterLen = of_string_unicode_to_utf8(
		    unicodeString[i], buffer);

		switch (characterLen) {
		case 1:
			UTF8String[j++] = buffer[0];
			break;
		case 2:
			UTF8StringLength++;

			memcpy(UTF8String + j, buffer, 2);







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	OFObject *object;

	object = [[[OFObject alloc] init] autorelease];
	UTF8String = [object allocMemoryWithSize: (length * 4) + 1];

	for (i = 0; i < length; i++) {
		char buffer[4];

		size_t len = of_string_utf8_encode(unicodeString[i], buffer);

		switch (len) {
		case 1:
			UTF8String[j++] = buffer[0];
			break;
		case 2:
			UTF8StringLength++;

			memcpy(UTF8String + j, buffer, 2);
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{
	const of_unichar_t *unicodeString = [self unicodeString];
	size_t length = [self length];
	size_t i, UTF8StringLength = 0;

	for (i = 0; i < length; i++) {
		char buffer[4];
		size_t characterLen = of_string_unicode_to_utf8(
		    unicodeString[i], buffer);

		if (characterLen == 0)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		UTF8StringLength += characterLen;
	}

	return UTF8StringLength;
}

- (size_t)cStringLengthWithEncoding: (of_string_encoding_t)encoding
{







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{
	const of_unichar_t *unicodeString = [self unicodeString];
	size_t length = [self length];
	size_t i, UTF8StringLength = 0;

	for (i = 0; i < length; i++) {
		char buffer[4];

		size_t len = of_string_utf8_encode(unicodeString[i], buffer);

		if (len == 0)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		UTF8StringLength += len;
	}

	return UTF8StringLength;
}

- (size_t)cStringLengthWithEncoding: (of_string_encoding_t)encoding
{

Modified src/OFString_UTF8.m from [4e25f0432f] to [b3064980ae].

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			return OF_ORDERED_DESCENDING;
		if (tolower((int)first[i]) < tolower((int)second[i]))
			return OF_ORDERED_ASCENDING;
	}

	return OF_ORDERED_SAME;
}
































































































































































@implementation OFString_UTF8
- init
{
	self = [super init];

	@try {







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			return OF_ORDERED_DESCENDING;
		if (tolower((int)first[i]) < tolower((int)second[i]))
			return OF_ORDERED_ASCENDING;
	}

	return OF_ORDERED_SAME;
}

int
of_string_utf8_check(const char *UTF8String, size_t UTF8Length, size_t *length)
{
	size_t i, tmpLength = UTF8Length;
	int isUTF8 = 0;

	for (i = 0; i < UTF8Length; i++) {
		/* No sign of UTF-8 here */
		if OF_LIKELY (!(UTF8String[i] & 0x80))
			continue;

		isUTF8 = 1;

		/* We're missing a start byte here */
		if OF_UNLIKELY (!(UTF8String[i] & 0x40))
			return -1;

		/* 2 byte sequences for code points 0 - 127 are forbidden */
		if OF_UNLIKELY ((UTF8String[i] & 0x7E) == 0x40)
			return -1;

		/* We have at minimum a 2 byte character -> check next byte */
		if OF_UNLIKELY (UTF8Length <= i + 1 ||
		    (UTF8String[i + 1] & 0xC0) != 0x80)
			return -1;

		/* Check if we have at minimum a 3 byte character */
		if OF_LIKELY (!(UTF8String[i] & 0x20)) {
			i++;
			tmpLength--;
			continue;
		}

		/* We have at minimum a 3 byte char -> check second next byte */
		if OF_UNLIKELY (UTF8Length <= i + 2 ||
		    (UTF8String[i + 2] & 0xC0) != 0x80)
			return -1;

		/* Check if we have a 4 byte character */
		if OF_LIKELY (!(UTF8String[i] & 0x10)) {
			i += 2;
			tmpLength -= 2;
			continue;
		}

		/* We have a 4 byte character -> check third next byte */
		if OF_UNLIKELY (UTF8Length <= i + 3 ||
		    (UTF8String[i + 3] & 0xC0) != 0x80)
			return -1;

		/*
		 * Just in case, check if there's a 5th character, which is
		 * forbidden by UTF-8
		 */
		if OF_UNLIKELY (UTF8String[i] & 0x08)
			return -1;

		i += 3;
		tmpLength -= 3;
	}

	if (length != NULL)
		*length = tmpLength;

	return isUTF8;
}

size_t
of_string_utf8_encode(of_unichar_t character, char *buffer)
{
	size_t i = 0;

	if (character < 0x80) {
		buffer[i] = character;
		return 1;
	} else if (character < 0x800) {
		buffer[i++] = 0xC0 | (character >> 6);
		buffer[i] = 0x80 | (character & 0x3F);
		return 2;
	} else if (character < 0x10000) {
		buffer[i++] = 0xE0 | (character >> 12);
		buffer[i++] = 0x80 | (character >> 6 & 0x3F);
		buffer[i] = 0x80 | (character & 0x3F);
		return 3;
	} else if (character < 0x110000) {
		buffer[i++] = 0xF0 | (character >> 18);
		buffer[i++] = 0x80 | (character >> 12 & 0x3F);
		buffer[i++] = 0x80 | (character >> 6 & 0x3F);
		buffer[i] = 0x80 | (character & 0x3F);
		return 4;
	}

	return 0;
}

size_t
of_string_utf8_decode(const char *buffer_, size_t length, of_unichar_t *ret)
{
	const uint8_t *buffer = (const uint8_t*)buffer_;

	if (!(*buffer & 0x80)) {
		*ret = buffer[0];
		return 1;
	}

	if ((*buffer & 0xE0) == 0xC0) {
		if OF_UNLIKELY (length < 2)
			return 0;

		*ret = ((buffer[0] & 0x1F) << 6) | (buffer[1] & 0x3F);
		return 2;
	}

	if ((*buffer & 0xF0) == 0xE0) {
		if OF_UNLIKELY (length < 3)
			return 0;

		*ret = ((buffer[0] & 0x0F) << 12) | ((buffer[1] & 0x3F) << 6) |
		    (buffer[2] & 0x3F);
		return 3;
	}

	if ((*buffer & 0xF8) == 0xF0) {
		if OF_UNLIKELY (length < 4)
			return 0;

		*ret = ((buffer[0] & 0x07) << 18) | ((buffer[1] & 0x3F) << 12) |
		    ((buffer[2] & 0x3F) << 6) | (buffer[3] & 0x3F);
		return 4;
	}

	return 0;
}

size_t
of_string_utf8_get_index(const char *string, size_t position)
{
	size_t i, index = position;

	for (i = 0; i < position; i++)
		if OF_UNLIKELY ((string[i] & 0xC0) == 0x80)
			index--;

	return index;
}

size_t
of_string_utf8_get_position(const char *string, size_t index, size_t length)
{
	size_t i;

	for (i = 0; i <= index; i++)
		if OF_UNLIKELY ((string[i] & 0xC0) == 0x80)
			if (++index > length)
				return OF_INVALID_INDEX;

	return index;
}

@implementation OFString_UTF8
- init
{
	self = [super init];

	@try {
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		}

		s = &s_store;

		s->cString = storage;
		s->cStringLength = UTF8StringLength;

		switch (of_string_check_utf8(UTF8String, UTF8StringLength,
		    &s->length)) {
		case 1:
			s->UTF8 = YES;
			break;
		case -1:
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];







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		}

		s = &s_store;

		s->cString = storage;
		s->cStringLength = UTF8StringLength;

		switch (of_string_utf8_check(UTF8String, UTF8StringLength,
		    &s->length)) {
		case 1:
			s->UTF8 = YES;
			break;
		case -1:
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
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		s = &s_store;

		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: [self class]];

				s->UTF8 = YES;







|







292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
		s = &s_store;

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

		if (encoding == OF_STRING_ENCODING_UTF_8 ||
		    encoding == OF_STRING_ENCODING_ASCII) {
			switch (of_string_utf8_check(cString, cStringLength,
			    &s->length)) {
			case 1:
				if (encoding == OF_STRING_ENCODING_ASCII)
					@throw [OFInvalidEncodingException
					    exceptionWithClass: [self class]];

				s->UTF8 = YES;
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181

				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: [self class]];

				s->cStringLength += bytes - 1;







|







326
327
328
329
330
331
332
333
334
335
336
337
338
339
340

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

				s->UTF8 = YES;
				bytes = of_string_utf8_encode(
				    (uint8_t)cString[i], buffer);

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

				s->cStringLength += bytes - 1;
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
			character = table[(uint8_t)cString[i]];

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

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

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

			s->cStringLength += characterBytes - 1;







|







376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
			character = table[(uint8_t)cString[i]];

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

			s->UTF8 = YES;
			characterBytes = of_string_utf8_encode(character,
			    buffer);

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

			s->cStringLength += characterBytes - 1;
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
		}

		s = &s_store;

		s->cString = (char*)UTF8String;
		s->cStringLength = UTF8StringLength;

		switch (of_string_check_utf8(UTF8String, UTF8StringLength,
		    &s->length)) {
		case 1:
			s->UTF8 = YES;
			break;
		case -1:
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];







|







422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
		}

		s = &s_store;

		s->cString = (char*)UTF8String;
		s->cStringLength = UTF8StringLength;

		switch (of_string_utf8_check(UTF8String, UTF8StringLength,
		    &s->length)) {
		case 1:
			s->UTF8 = YES;
			break;
		case -1:
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349

		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;







|







494
495
496
497
498
499
500
501
502
503
504
505
506
507
508

		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_utf8_encode(
			    (swap ? of_bswap32(string[i]) : string[i]),
			    buffer);

			switch (characterLen) {
			case 1:
				s->cString[j++] = buffer[0];
				break;
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
				    (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;







|
<







603
604
605
606
607
608
609
610

611
612
613
614
615
616
617
				    (nextCharacter & 0x3FF)) + 0x10000;

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

			characterLen = of_string_utf8_encode(character, buffer);


			switch (characterLen) {
			case 1:
				s->cString[j++] = buffer[0];
				break;
			case 2:
				s->UTF8 = YES;
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
		    arguments)) == -1)
			@throw [OFInvalidFormatException
			    exceptionWithClass: [self class]];

		s->cStringLength = cStringLength;

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







|







679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
		    arguments)) == -1)
			@throw [OFInvalidFormatException
			    exceptionWithClass: [self class]];

		s->cStringLength = cStringLength;

		@try {
			switch (of_string_utf8_check(tmp, cStringLength,
			    &s->length)) {
			case 1:
				s->UTF8 = YES;
				break;
			case -1:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780

	i = j = 0;

	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: [self class]];

		if (c1 >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {







|

|







922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938

	i = j = 0;

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

		l1 = of_string_utf8_decode(s->cString + i,
		    s->cStringLength - i, &c1);
		l2 = of_string_utf8_decode(otherCString + j,
		    otherCStringLength - j, &c2);

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

		if (c1 >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834

	OF_HASH_INIT(hash);

	for (i = 0; i < s->cStringLength; i++) {
		of_unichar_t c;
		size_t length;

		if ((length = of_string_utf8_to_unicode(s->cString + i,
		    s->cStringLength - i, &c)) == 0)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		OF_HASH_ADD(hash, (c & 0xFF0000) >> 16);
		OF_HASH_ADD(hash, (c & 0x00FF00) >>  8);
		OF_HASH_ADD(hash,  c & 0x0000FF);







|







978
979
980
981
982
983
984
985
986
987
988
989
990
991
992

	OF_HASH_INIT(hash);

	for (i = 0; i < s->cStringLength; i++) {
		of_unichar_t c;
		size_t length;

		if ((length = of_string_utf8_decode(s->cString + i,
		    s->cStringLength - i, &c)) == 0)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		OF_HASH_ADD(hash, (c & 0xFF0000) >> 16);
		OF_HASH_ADD(hash, (c & 0x00FF00) >>  8);
		OF_HASH_ADD(hash,  c & 0x0000FF);
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868

	if (index >= s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if (!s->UTF8)
		return s->cString[index];

	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: [self class]];

	return character;
}

- (void)getCharacters: (of_unichar_t*)buffer







|


|
|







1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026

	if (index >= s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if (!s->UTF8)
		return s->cString[index];

	index = of_string_utf8_get_position(s->cString, index,
	    s->cStringLength);

	if (!of_string_utf8_decode(s->cString + index, s->cStringLength - index,
	    &character))
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];

	return character;
}

- (void)getCharacters: (of_unichar_t*)buffer
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
	if (cStringLength > s->cStringLength)
		return of_range(OF_INVALID_INDEX, 0);

	if (options & OF_STRING_SEARCH_BACKWARDS) {
		for (i = s->cStringLength - cStringLength;; i--) {
			if (!memcmp(s->cString + i, cString, cStringLength))
				return of_range(
				    of_string_position_to_index(s->cString, i),
				    [string length]);

			/* Did not match and we're at the last char */
			if (i == 0)
				return of_range(OF_INVALID_INDEX, 0);
		}
	} else {
		for (i = 0; i <= s->cStringLength - cStringLength; i++)
			if (!memcmp(s->cString + i, cString, cStringLength))
				return of_range(
				    of_string_position_to_index(s->cString, i),
				    [string length]);
	}

	return of_range(OF_INVALID_INDEX, 0);
}

- (BOOL)containsString: (OFString*)string







|










|







1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
	if (cStringLength > s->cStringLength)
		return of_range(OF_INVALID_INDEX, 0);

	if (options & OF_STRING_SEARCH_BACKWARDS) {
		for (i = s->cStringLength - cStringLength;; i--) {
			if (!memcmp(s->cString + i, cString, cStringLength))
				return of_range(
				    of_string_utf8_get_index(s->cString, i),
				    [string length]);

			/* Did not match and we're at the last char */
			if (i == 0)
				return of_range(OF_INVALID_INDEX, 0);
		}
	} else {
		for (i = 0; i <= s->cStringLength - cStringLength; i++)
			if (!memcmp(s->cString + i, cString, cStringLength))
				return of_range(
				    of_string_utf8_get_index(s->cString, i),
				    [string length]);
	}

	return of_range(OF_INVALID_INDEX, 0);
}

- (BOOL)containsString: (OFString*)string
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
	size_t start = range.start;
	size_t end = range.start + range.length;

	if (end > s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if (s->UTF8) {
		start = of_string_index_to_position(s->cString, start,
		    s->cStringLength);
		end = of_string_index_to_position(s->cString, end,
		    s->cStringLength);
	}

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








|

|







1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
	size_t start = range.start;
	size_t end = range.start + range.length;

	if (end > s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if (s->UTF8) {
		start = of_string_utf8_get_position(s->cString, start,
		    s->cStringLength);
		end = of_string_utf8_get_position(s->cString, end,
		    s->cStringLength);
	}

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

1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
	i = 0;
	j = 0;

	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: [self class]];

		ret[j++] = c;







|







1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
	i = 0;
	j = 0;

	while (i < s->cStringLength) {
		of_unichar_t c;
		size_t cLen;

		cLen = of_string_utf8_decode(s->cString + i,
		    s->cStringLength - i, &c);

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

		ret[j++] = c;