errorCode decodeString(EXIStream* strm, String* string_val)
{
errorCode tmp_err_code = EXIP_UNEXPECTED_ERROR;
UnsignedInteger string_length = 0;
DEBUG_MSG(INFO, DEBUG_STREAM_IO, (">> (string)"));
TRY(decodeUnsignedInteger(strm, &string_length));
TRY(allocateStringMemoryManaged(&(string_val->str),(Index) string_length, &strm->memList));
return decodeStringOnly(strm,(Index) string_length, string_val);
}
static errorCode ops_startElement(QName qname, void* app_data)
{
struct ops_AppData* o_appD = (struct ops_AppData*) app_data;
if(o_appD->o_strm->context.currElem.uriId == 4) // URI == http://www.w3.org/2009/exi
{
o_appD->prevElementUriID = 4;
switch(o_appD->o_strm->context.currElem.lnId)
{
case 33: // strict
SET_STRICT(o_appD->parsed_ops->enumOpt);
o_appD->prevElementLnID = 33;
break;
case 31: // schemaId
o_appD->prevElementLnID = 31;
o_appD->parsed_ops->schemaIDMode = SCHEMA_ID_EMPTY;
break;
case 7: // compression
SET_COMPRESSION(o_appD->parsed_ops->enumOpt);
o_appD->prevElementLnID = 7;
break;
case 14: // fragment
SET_FRAGMENT(o_appD->parsed_ops->enumOpt);
o_appD->prevElementLnID = 14;
break;
case 13: // dtd
SET_PRESERVED(o_appD->parsed_ops->preserve, PRESERVE_DTD);
o_appD->prevElementLnID = 13;
break;
case 29: // prefixes
SET_PRESERVED(o_appD->parsed_ops->preserve, PRESERVE_PREFIXES);
o_appD->prevElementLnID = 29;
break;
case 26: // lexicalValues
SET_PRESERVED(o_appD->parsed_ops->preserve, PRESERVE_LEXVALUES);
o_appD->prevElementLnID = 26;
break;
case 5: // comments
SET_PRESERVED(o_appD->parsed_ops->preserve, PRESERVE_COMMENTS);
o_appD->prevElementLnID = 5;
break;
case 27: // pis
SET_PRESERVED(o_appD->parsed_ops->preserve, PRESERVE_PIS);
o_appD->prevElementLnID = 27;
break;
case 4: // alignment->byte
SET_ALIGNMENT(o_appD->parsed_ops->enumOpt, BYTE_ALIGNMENT);
o_appD->prevElementLnID = 4;
break;
case 28: // alignment->pre-compress
SET_ALIGNMENT(o_appD->parsed_ops->enumOpt, PRE_COMPRESSION);
o_appD->prevElementLnID = 28;
break;
case 32: // selfContained
SET_SELF_CONTAINED(o_appD->parsed_ops->enumOpt);
o_appD->prevElementLnID = 32;
break;
case 8: // datatypeRepresentationMap
o_appD->prevElementLnID = 8;
break;
case 36: // uncommon
o_appD->prevElementLnID = 36;
#if EXI_PROFILE_DEFAULT
{
// If the EXI Profile default behaviour is followed, then we expect
// SE(*) <p/> indicating default EXI Profile parameters
// If this is not the case rise an error
// SE(*) has event code 5 in the uncommon grammar
unsigned int tmp_bits_val;
UnsignedInteger lnLen = 0;
errorCode tmp_err_code = UNEXPECTED_ERROR;
String lnStr;
QNameID qnameId = {URI_MAX, LN_MAX};
// Next event code must be SE(*)
TRY(decodeNBitUnsignedInteger(o_appD->o_strm, 3, &tmp_bits_val));
if(tmp_bits_val != 5)
{
DEBUG_MSG(ERROR, DEBUG_CONTENT_IO, (">EXI Profile default active but <p> element missing\n"));
return INVALID_EXIP_CONFIGURATION;
}
// The <p> element QName must be "http://www.w3.org/2009/exi:p"
TRY(decodeUri(o_appD->o_strm, &qnameId.uriId));
TRY(decodeUnsignedInteger(o_appD->o_strm, &lnLen));
if(lnLen == 0) // local-name table hit -> should not be the case to have "p" in the local string table
return INVALID_EXIP_CONFIGURATION;
TRY(allocateStringMemoryManaged(&(lnStr.str),(Index) (lnLen - 1), &o_appD->o_strm->memList));
TRY(decodeStringOnly(o_appD->o_strm, (Index)lnLen - 1, &lnStr));
// NOTE: the "p" local name is in purpose not added to the
// local name table of the http://www.w3.org/2009/exi uri, although it should be.
// If there are more strings (24 or more) added there in the future
// or the <p> element is encoded more than once - both are highly unlikely,
// then there will be a problem with the encoding.
if(qnameId.uriId != 4 || !stringEqualToAscii(lnStr, "p"))
{
DEBUG_MSG(ERROR, DEBUG_CONTENT_IO, (">EXI Profile default active but <p> element missing\n"));
return INVALID_EXIP_CONFIGURATION;
}
// The next event code must be EE -> 0.0
TRY(decodeNBitUnsignedInteger(o_appD->o_strm, 2, &tmp_bits_val));
if(tmp_bits_val != 0)
{
DEBUG_MSG(ERROR, DEBUG_CONTENT_IO, (">EXI Profile default active but <p> element is not empty\n"));
return INVALID_EXIP_CONFIGURATION;
}
}
#endif
break;
}
}
else // URI != http://www.w3.org/2009/exi
{
// The previous element should be either uncommon or datatypeRepresentationMap otherwise it is an error
// These are the only places where <any> element is allowed
if(o_appD->prevElementUriID != 4 || o_appD->prevElementLnID != 36 || o_appD->prevElementLnID != 8)
{
DEBUG_MSG(ERROR, DEBUG_CONTENT_IO, (">Wrong namespace in the EXI Options\n"));
return EXIP_HANDLER_STOP;
}
// Handle here the user defined meta-data that follows! http://www.w3.org/TR/2011/REC-exi-20110310/#key-userMetaData
}
return ERR_OK;
}
