void ReadFixedTag(P_WBXML_INFO buffer, WBXML_TAG tag)
{
if (buffer)
{
if (BytesLeft(buffer) >= sizeof(WBXML_TAG))
{
if ((*((WBXML_TAG*) buffer->m_curpos)) == tag)
{
buffer->m_curpos += sizeof(WBXML_TAG);
}
else
{
ParseError(ERR_TAG_NOT_FOUND);
}
}
else
{
ParseError(ERR_END_OF_DATA);
}
}
else
{
ParseError(ERR_INTERNAL_BAD_PARAM);
}
}
void Read_mb_u_int32(P_WBXML_INFO buffer, P_WBXML_MB_U_INT32 result)
{
if (buffer && result)
{
int i;
for (i = 0; i < MAX_MB_U_INT32_BYTES; i++)
{
if (BytesLeft(buffer) >= 1)
{
(*result)[i] = *(buffer->m_curpos);
(buffer->m_curpos)++;
if ( !( (*result)[i] & 0x80 ) )
break;
}
else
{
ParseError(ERR_END_OF_DATA);
}
}
}
else
{
ParseError(ERR_INTERNAL_BAD_PARAM);
}
}
TInt CDescriptorDataSource::ReadBytesL(const TDesC8& aDescriptor)
{
TInt left = BytesLeft();
if (left)
{
// We have some excess to carry across into the next parse.
iBuffer->Delete(0, iPosition);
}
else
{
// Otherwise remove all old data for efficiency
// but don't compress the buffer
iBuffer->Delete(0, iBuffer->Size());
}
iPosition = 0;
// Need to reflect any changes from the above Delete
iBufferPtr.Set(iBuffer->Ptr(0));
iBuffer->InsertL(iBufferPtr.Length(), aDescriptor);
// Need to reflect any changes from the above Insert
iBufferPtr.Set(iBuffer->Ptr(0));
iBytesInBuffer = iBufferPtr.Length();
return aDescriptor.Length();
}
WBXML_TAG ReadCodepageTag (P_WBXML_INFO buffer, CP_TAG_TYPE type)
{
WBXML_TAG tag = 0;
if (buffer)
{
if (BytesLeft(buffer) >= sizeof(WBXML_TAG))
{
tag = *((WBXML_TAG*) buffer->m_curpos);
switch (type)
{
case CP_TAG_TAG:
buffer->m_curpos += sizeof(WBXML_TAG);
break;
case CP_TAG_ATTRSTART:
if ((tag & 0x80) != 0x80)
{
buffer->m_curpos += sizeof(WBXML_TAG);
}
else
{
ParseError(ERR_TAG_NOT_FOUND);
}
break;
case CP_TAG_ATTRVALUE:
if ((tag & 0x80) == 0x80)
{
buffer->m_curpos += sizeof(WBXML_TAG);
}
else
{
ParseError(ERR_TAG_NOT_FOUND);
}
break;
default:
ParseError(ERR_TAG_NOT_FOUND);
break;
}
}
else
{
ParseError(ERR_END_OF_DATA);
}
}
else
{
ParseError(ERR_INTERNAL_BAD_PARAM);
}
return tag;
}
void Read_termstr_rtn(P_WBXML_INFO buffer, char** result)
{
#define STRING_BLOCK_SIZE 256
int buflen = STRING_BLOCK_SIZE;
char* strbuf = (char*) malloc(buflen);
BOOL doubled = FALSE;
int i = 0;
if (!result)
ParseError(ERR_INTERNAL_BAD_PARAM);
while ( (BytesLeft(buffer) >= 1) && (*(buffer->m_curpos) != 0) )
{
if (i>=buflen)
{
buflen += STRING_BLOCK_SIZE;
strbuf = realloc(strbuf, buflen);
}
if (*(buffer->m_curpos) != '$' || doubled == TRUE)
{
strbuf[i] = *(buffer->m_curpos);
buffer->m_curpos++;
i++;
if (doubled == TRUE)
doubled = FALSE;
}
else
{
strbuf[i] = *(buffer->m_curpos);
i++;
doubled = TRUE;
}
}
strbuf[i] = 0;
buffer->m_curpos++;
if (*result)
free(*result);
*result = strbuf;
}
void Read_u_int8(P_WBXML_INFO buffer, P_WBXML_U_INT8 result)
{
if (buffer && result)
{
if (BytesLeft(buffer) >= 1)
{
*result = *(buffer->m_curpos);
(buffer->m_curpos)++;
}
else
{
ParseError(ERR_END_OF_DATA);
}
}
else
{
ParseError(ERR_INTERNAL_BAD_PARAM);
}
}
void Read_bytes(P_WBXML_INFO buffer, WBXML_LENGTH length, P_WBXML_BYTES result)
{
if (buffer && result)
{
if (BytesLeft(buffer) >= length)
{
*result = (WBXML_BYTES) malloc(length*sizeof(unsigned char));
memcpy(*result, buffer->m_curpos, length);
buffer->m_curpos += length;
}
else
{
ParseError(ERR_END_OF_DATA);
}
}
else
{
ParseError(ERR_INTERNAL_BAD_PARAM);
}
}
BOOL Is_zero(P_WBXML_INFO buffer)
{
BOOL result = FALSE;
if (buffer)
{
if (BytesLeft(buffer) >= 1)
{
result = ((*buffer->m_curpos) == 0);
}
else
{
ParseError(ERR_END_OF_DATA);
}
}
else
{
ParseError(ERR_INTERNAL_BAD_PARAM);
}
return result;
}
BOOL IsTag(P_WBXML_INFO buffer, WBXML_TAG tag)
{
BOOL result = FALSE;
if (buffer)
{
if (BytesLeft(buffer) >= sizeof(WBXML_TAG))
{
result = ((*((WBXML_TAG*) buffer->m_curpos)) == tag);
}
else
{
/* No more data, so nope, not this tag */
result = FALSE;
}
}
else
{
ParseError(ERR_INTERNAL_BAD_PARAM);
}
return result;
}
bool AtEnd()
{
// No bytes left and process no longer running, sounds like we're done to me.
return BytesLeft() <= 0 && !IsRunning();
}
