unsigned int TA_ReadOpToField( TA_ReadOp readOp )
{
if( TA_IS_REAL_CMD(readOp) )
{
switch( TA_GET_IDX(readOp) )
{
case TA_CLOSE_IDX:
return TA_CLOSE;
case TA_OPEN_IDX:
return TA_OPEN;
case TA_HIGH_IDX:
return TA_HIGH;
case TA_LOW_IDX:
return TA_LOW;
}
}
else if( TA_IS_INTEGER_CMD(readOp) )
{
switch( TA_GET_IDX(readOp) )
{
case TA_VOLUME_IDX:
return TA_VOLUME;
case TA_OPENINTEREST_IDX:
return TA_OPENINTEREST;
default:
return TA_TIMESTAMP;
}
}
TA_FATAL_RET( NULL, readOp, 0, TA_ALL );
/* Unreachable code:
* return TA_ALL;
*/
}
/**** Local functions definitions. ****/
static unsigned isTimeNeeded( const TA_ReadOp *readOp )
{
unsigned int i;
TA_ReadOp op;
i=0;
do
{
op = readOp[i++];
if( TA_IS_INTEGER_CMD(op) && (TA_GET_IDX(op)<=TA_HOUR_IDX) )
return 1;
} while( !TA_IS_READ_STOP_FLAG_SET(op) );
return 0;
}
TA_RetCode TA_ReadOpInfoAlloc( const char *sourceInfo,
TA_ReadOpInfo **allocatedInfo,
unsigned int readOpFlags )
{
TA_PROLOG
TA_RetCode retCode;
TA_ReadOp readOp;
TA_ReadOp *arrayReadOp;
TA_ReadOpInfo *newReadOpInfo;
TA_Field fieldMask, fieldProvided;
unsigned int timeframeIdx;
unsigned int intraDayIncPeriod;
TA_TokenId intraDayIncToken;
TA_TokenId tempToken;
unsigned int tempInt;
unsigned int period;
unsigned int errorOccurred;
const char *pos;
unsigned int inField;
unsigned int nbField;
unsigned int nbCharInField;
unsigned int skipNonDigitLine;
const char *ptrFirstCarInField;
unsigned char localBuf[10];
unsigned int bufIdx, opIdx, i;
register unsigned int flagSet;
register TA_ReadOp *ptrReadOp;
TA_TRACE_BEGIN( TA_BuildArrayReadOp );
newReadOpInfo = (TA_ReadOpInfo *)TA_Malloc( sizeof( TA_ReadOpInfo ) );
/* These variables are resolved within this function. */
memset( newReadOpInfo, 0, sizeof( TA_ReadOpInfo ) );
/* At this point, TA_ReadOpInfoFree can be safely called. */
/* Keep track of some user provided parameter. */
newReadOpInfo->sourceInfo = sourceInfo;
newReadOpInfo->readOpFlags = readOpFlags;
/* Initialize some defaults. */
newReadOpInfo->openInterestMult = 100;
newReadOpInfo->volumeMult = 100;
nbField = 0;
intraDayIncPeriod = 0;
intraDayIncToken = TA_TOK_END;
pos = newReadOpInfo->sourceInfo;
if( !pos || (*pos == '\0') )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_MISSING_FIELD );
}
/* Find how many fields are defined and check some syntax
* at the same time.
*/
if( *pos != '[' )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
inField = 0;
nbCharInField = 0;
skipNonDigitLine = 0;
ptrFirstCarInField = NULL;
while( *pos != '\0' )
{
switch( *pos )
{
case '[':
if( inField )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
inField = 1;
break;
case ']':
if( (!inField) || (nbCharInField == 0) )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
nbField++;
/* Exclude fields not generating a TA_ReadOp.
* For the time being that means only the -H and -NDL field.
*/
if( nbCharInField >= 2 )
{
TA_ASSERT( ptrFirstCarInField != NULL );
if( ptrFirstCarInField[0] == '-' )
{
if( toupper(ptrFirstCarInField[1]) == 'H' )
nbField--;
else if( (toupper(ptrFirstCarInField[1]) == 'N') &&
(toupper(ptrFirstCarInField[2]) == 'D') &&
(toupper(ptrFirstCarInField[3]) == 'L') )
{
skipNonDigitLine = 1;
nbField--;
}
}
}
inField = 0;
nbCharInField = 0;
ptrFirstCarInField = NULL;
break;
default:
if( !inField )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
if( nbCharInField == 0 )
ptrFirstCarInField = pos;
nbCharInField++;
break;
}
pos++;
}
if( inField || *(pos-1) != ']' )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
/* Build the TA_ReadOp array */
arrayReadOp = (TA_ReadOp *)TA_Malloc( sizeof( TA_ReadOp ) * nbField );
if( !arrayReadOp )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_ALLOC_ERR );
}
newReadOpInfo->arrayReadOp = arrayReadOp;
pos = TA_StringToChar(newReadOpInfo->sourceInfo);
bufIdx = 0;
opIdx = 0;
while( *pos != '\0' && (opIdx < nbField) )
{
switch( *pos )
{
case '[':
break;
case ']':
localBuf[bufIdx] ='\0';
bufIdx = 0;
/* Identify the field and build the TA_ReadOp. */
tempInt = 0;
retCode = buildReadOp( newReadOpInfo,
(const char *)&localBuf[0],
&arrayReadOp[opIdx],
&tempToken, &tempInt );
if( retCode != TA_SUCCESS )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( retCode );
}
if( arrayReadOp[opIdx] != 0 )
{
/* Set the replace zero flag as needed */
if( TA_IS_REPLACE_ZERO(readOpFlags) && TA_IS_REAL_CMD(arrayReadOp[opIdx]) )
{
TA_SET_REPLACE_ZERO(arrayReadOp[opIdx]);
}
/* Set the skipNonDigitLine flag as needed. */
if( skipNonDigitLine == 1 )
{
TA_SET_SKIP_NDL_FLAG(arrayReadOp[opIdx]);
}
/* Ooof... this readOp is now all build! */
opIdx++;
}
/* If this is a time token, make sure this
* is not in contradiction with an already
* specified increment.
*/
if( intraDayIncPeriod )
{
errorOccurred = 0;
switch( tempToken )
{
case TA_TOK_SEC:
case TA_TOK_SS:
if( (intraDayIncToken == TA_TOK_MIN) ||
(intraDayIncToken == TA_TOK_MN) )
errorOccurred = 1;
/* no break */
case TA_TOK_MIN:
case TA_TOK_MN:
if( (intraDayIncToken == TA_TOK_HOUR) ||
(intraDayIncToken == TA_TOK_HH) )
errorOccurred = 1;
break;
case TA_TOK_HOUR:
case TA_TOK_HH:
errorOccurred = 1;
break;
default:
/* Do nothing */
break;
}
if( errorOccurred )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
}
/* Check if a period increment is specified. */
if( (tempInt != 0) && (tempInt != 1) )
{
if( intraDayIncPeriod != 0 )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
intraDayIncPeriod = tempInt;
intraDayIncToken = tempToken;
}
break;
default:
if( bufIdx >= sizeof(localBuf)-1 )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
localBuf[bufIdx++] = *pos;
break;
}
pos++;
}
if( opIdx != nbField )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INTERNAL_ERROR(89) );
}
arrayReadOp[opIdx-1] |= TA_CMD_LAST_FLAG;
/* Build the mask representing the fields provided. */
fieldProvided = 0;
timeframeIdx = TA_INTEGER_ARRAY_SIZE;
for( opIdx=0; opIdx < nbField; opIdx++ )
{
readOp = arrayReadOp[opIdx];
TA_ASSERT( readOp != 0 ); /* Parano test */
if( !TA_IS_PERMANENT_SKIP_SET(readOp) )
{
/* Make sure this field was not specified twice. */
for( i=opIdx+1; i < nbField; i++ )
{
if( (TA_IS_REAL_CMD(readOp) && TA_IS_REAL_CMD(arrayReadOp[i])) ||
(TA_IS_INTEGER_CMD(readOp) && TA_IS_INTEGER_CMD(arrayReadOp[i])) )
{
if( (TA_GET_IDX(readOp) == TA_GET_IDX(arrayReadOp[i])) &&
!TA_IS_PERMANENT_SKIP_SET(arrayReadOp[i]) )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_REDUNDANT_FIELD );
}
}
}
/* Parano test: Double-check redundant field in a different way. */
fieldMask = TA_ReadOpToField( readOp );
TA_ASSERT( fieldMask != 0 );
if( !(fieldMask & TA_TIMESTAMP) && (fieldProvided & fieldMask) )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_REDUNDANT_FIELD );
}
/* Set the field. */
fieldProvided |= fieldMask;
/* Keep track of the smallest granularity of the timestamp. */
if( fieldMask & TA_TIMESTAMP )
{
if( (timeframeIdx == TA_INTEGER_ARRAY_SIZE) ||
(TA_GET_IDX(readOp) < timeframeIdx) )
timeframeIdx = TA_GET_IDX(readOp);
}
}
}
/* No date/time reference provided!? This is considered an error
* in the current implementation.
*/
if( timeframeIdx == TA_INTEGER_ARRAY_SIZE )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_MISSING_DATE_OR_TIME_FIELD );
}
/* Determine at which point the timestamp is completed. */
flagSet = 0;
for( opIdx=nbField; opIdx > 0; opIdx-- )
{
ptrReadOp = &arrayReadOp[opIdx-1];
readOp = *ptrReadOp;
if( !flagSet &&
TA_IS_INTEGER_CMD(readOp) &&
(TA_GET_IDX(readOp)<=TA_YEAR_IDX) &&
!TA_IS_PERMANENT_SKIP_SET(readOp) )
{
TA_SET_TIMESTAMP_COMPLETE(*ptrReadOp);
flagSet = 1;
}
else
{
TA_CLR_TIMESTAMP_COMPLETE(*ptrReadOp);
}
}
/* Validate and identify the period. */
period = 0;
if( intraDayIncPeriod )
{
errorOccurred = 0;
switch( timeframeIdx )
{
case TA_YEAR_IDX:
case TA_MONTH_IDX:
case TA_DAY_IDX:
errorOccurred = 1;
break;
case TA_HOUR_IDX:
if( (intraDayIncPeriod < TA_1HOUR) || (intraDayIncPeriod >= TA_DAILY) )
errorOccurred = 1;
break;
case TA_MIN_IDX:
if( (intraDayIncPeriod < TA_1MIN) || (intraDayIncPeriod >= TA_1HOUR) )
errorOccurred = 1;
break;
case TA_SEC_IDX:
if( (intraDayIncPeriod < TA_1SEC) || (intraDayIncPeriod >= TA_1MIN) )
errorOccurred = 1;
break;
default:
TA_ReadOpInfoFree( newReadOpInfo );
TA_FATAL( NULL, timeframeIdx, fieldProvided );
}
if( errorOccurred )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
period = intraDayIncPeriod;
}
else
{
switch( timeframeIdx )
{
case TA_YEAR_IDX:
period = TA_YEARLY;
break;
case TA_MONTH_IDX:
period = TA_MONTHLY;
break;
case TA_DAY_IDX:
period = TA_DAILY;
break;
case TA_HOUR_IDX:
period = TA_1HOUR;
break;
case TA_MIN_IDX:
period = TA_1MIN;
break;
case TA_SEC_IDX:
period = TA_1SEC;
break;
default:
TA_FATAL( NULL, timeframeIdx, fieldProvided );
}
}
/* A last check... */
if( period == 0 )
{
TA_ReadOpInfoFree( newReadOpInfo );
TA_TRACE_RETURN( TA_INVALID_FIELD );
}
/* Everything is fine, let's return the information. */
newReadOpInfo->arrayReadOp = arrayReadOp;
newReadOpInfo->fieldProvided = fieldProvided;
newReadOpInfo->nbReadOp = nbField;
newReadOpInfo->period = period;
*allocatedInfo = newReadOpInfo;
TA_TRACE_RETURN( TA_SUCCESS );
}
