ObjFW  Check-in [d511962e09]

#import "OFString.h"

/**
 * \brief A class for storing and modifying strings.
 */
@interface OFMutableString: OFString
/**
 * \brief Sets the OFMutableString to the specified UTF-8 encoded C string.
 *
 * \param newCString A UTF-8 encoded C string to set the OFMutableString to.
 */
- (void)setToCString: (const char*)newCString;

/**
 * \brief Appends a UTF-8 encoded C string to the OFMutableString.
 *
 * \param cString A UTF-8 encoded C string to append
 */
- (void)appendCString: (const char*)cString;

	/*
	 * Even though cStringLength can change, length cannot, therefore no
	 * need to change it.
	 */
}

- (void)setToCString: (const char*)newCString
{
	size_t newCStringLength = strlen(newCString);
	size_t newLength;

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

	switch (of_string_check_utf8(newCString, newCStringLength,
	    &newLength)) {
	case 0:
		s->isUTF8 = NO;
		break;
	case 1:
		s->isUTF8 = YES;
		break;
	case -1:
		@throw [OFInvalidEncodingException newWithClass: isa];
	}

	[self freeMemory: s->cString];

	s->cStringLength = newCStringLength;
	s->length = newLength;

	s->cString = [self allocMemoryWithSize: newCStringLength + 1];
	memcpy(s->cString, newCString, newCStringLength + 1);
}

- (void)appendCString: (const char*)cString
{
	size_t cStringLength = strlen(cString);
	size_t length;

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