Differences From Artifact [10b3048cbe]:
- File src/OFString.m — part of check-in [e2f4c1283c] at 2012-12-15 23:31:17 on branch trunk — OFString: Improved API for getting C strings. (user: js, size: 44720) [annotate] [blame] [check-ins using]
To Artifact [29ef9c669e]:
- File
src/OFString.m
— part of check-in
[556234e290]
at
2012-12-16 01:15:31
on branch trunk
— Add encodings for -[cStringUsingEncoding:].
This adds ISO 8859-1 and ASCII, ISO 8859-15 and Windows-1252 will
follow. (user: js, size: 45390) [annotate] [blame] [check-ins using]
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return self;
}
- (const char*)cStringUsingEncoding: (of_string_encoding_t)encoding
{
const of_unichar_t *unicodeString = [self unicodeString];
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return self;
}
- (const char*)cStringUsingEncoding: (of_string_encoding_t)encoding
{
const of_unichar_t *unicodeString = [self unicodeString];
size_t i, length = [self length];
OFObject *object = [[[OFObject alloc] init] autorelease];
char *cString;
switch (encoding) {
case OF_STRING_ENCODING_UTF_8:;
size_t cStringLength, j = 0;
cString = [object allocMemoryWithSize: (length * 4) + 1];
cStringLength = length;
for (i = 0; i < length; i++) {
char buffer[4];
size_t len = of_string_utf8_encode(unicodeString[i],
buffer);
switch (len) {
case 1:
cString[j++] = buffer[0];
break;
case 2:
cStringLength++;
memcpy(cString + j, buffer, 2);
j += 2;
break;
case 3:
cStringLength += 2;
memcpy(cString + j, buffer, 3);
j += 3;
break;
case 4:
cStringLength += 3;
memcpy(cString + j, buffer, 4);
j += 4;
break;
default:
@throw [OFInvalidEncodingException
exceptionWithClass: [self class]];
}
}
cString[j] = '\0';
@try {
cString = [object resizeMemory: cString
size: cStringLength + 1];
} @catch (OFOutOfMemoryException *e) {
/* We don't care, as we only tried to make it smaller */
}
break;
case OF_STRING_ENCODING_ASCII:
cString = [object allocMemoryWithSize: length + 1];
for (i = 0; i < length; i++) {
if (unicodeString[i] > 0x80)
@throw [OFInvalidEncodingException
exceptionWithClass: [self class]];
cString[i] = (char)unicodeString[i];
}
cString[i] = '\0';
break;
case OF_STRING_ENCODING_ISO_8859_1:
cString = [object allocMemoryWithSize: length + 1];
for (i = 0; i < length; i++) {
if (unicodeString[i] > 0xFF)
@throw [OFInvalidEncodingException
exceptionWithClass: [self class]];
cString[i] = (uint8_t)unicodeString[i];
}
cString[i] = '\0';
break;
default:
@throw [OFNotImplementedException
exceptionWithClass: [self class]];
}
return cString;
}
- (const char*)UTF8String
{
return [self cStringUsingEncoding: OF_STRING_ENCODING_UTF_8];
}
- (size_t)length
{
@throw [OFNotImplementedException exceptionWithClass: [self class]
selector: _cmd];
}
- (size_t)lengthOfBytesUsingEncoding: (of_string_encoding_t)encoding
{
switch (encoding) {
case OF_STRING_ENCODING_UTF_8:;
const of_unichar_t *unicodeString;
size_t i, length, UTF8StringLength = 0;
unicodeString = [self unicodeString];
length = [self length];
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;
case OF_STRING_ENCODING_ASCII:
case OF_STRING_ENCODING_ISO_8859_1:
return [self length];
default:
@throw [OFNotImplementedException
exceptionWithClass: [self class]
selector: _cmd];
}
}
- (size_t)UTF8StringLength
{
return [self lengthOfBytesUsingEncoding: OF_STRING_ENCODING_UTF_8];
}
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