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Diffstat (limited to 'src/core/xbexpnode.cpp')
| -rwxr-xr-x | src/core/xbexpnode.cpp | 562 |
1 files changed, 562 insertions, 0 deletions
diff --git a/src/core/xbexpnode.cpp b/src/core/xbexpnode.cpp new file mode 100755 index 0000000..d11e8cc --- /dev/null +++ b/src/core/xbexpnode.cpp @@ -0,0 +1,562 @@ +/* xbexpnode.cpp + +XBase64 Software Library + +Copyright (c) 1997,2003,2014,2017,2022,2023 Gary A Kunkel + +The xb64 software library is covered under +the terms of the GPL Version 3, 2007 license. + +Email Contact: + + XDB-devel@lists.sourceforge.net + XDB-users@lists.sourceforge.net + +*/ + +#include "xbase.h" + +#ifdef XB_EXPRESSION_SUPPORT + +namespace xb{ +/************************************************************************/ +//! @brief Constructor +xbExpNode::xbExpNode(){ + sNodeText = ""; + cReturnType = 0; + cNodeType = 0; + dResult = 0; + iFieldNo = 0; + ulResultLen = 0; + iWeight = 0; + nParent = NULL; + dbf = NULL; +} + +/************************************************************************/ +//! @brief Constructor +/*! + \param sNodeText Node text. + \param cReturnType Return type. + \param cNodeType Node type. +*/ + +xbExpNode::xbExpNode( xbString &sNodeText, char cReturnType, char cNodeType ){ + this->sNodeText = sNodeText; + this->cReturnType = cReturnType; + this->cNodeType = cNodeType; + dResult = 0; + iFieldNo = 0; + ulResultLen = 0; + iWeight = 0; + nParent = NULL; + dbf = NULL; +} + +/************************************************************************/ +//! @brief Constructor +/*! + \param sNodeText Node text. + \param cNodeType Node type. +*/ +xbExpNode::xbExpNode( xbString &sNodeText, char cNodeType ){ + this->sNodeText = sNodeText; + this->cReturnType = 0x00; + this->cNodeType = cNodeType; + dResult = 0; + iFieldNo = 0; + ulResultLen = 0; + iWeight = 0; + nParent = NULL; + dbf = NULL; +} + +/************************************************************************/ +//! @brief Constructor +/*! + \param cNodeType Node type. +*/ +xbExpNode::xbExpNode( char cNodeType ){ + this->cReturnType = 0x00; + this->cNodeType = cNodeType; + dResult = 0; + iFieldNo = 0; + ulResultLen = 0; + iWeight = 0; + nParent = NULL; + dbf = NULL; +} + +/************************************************************************/ +//! @brief Deconstructor +xbExpNode::~xbExpNode(){ + + xbExpNode * n; + while( llChildren.GetNodeCnt() > 0 ){ + llChildren.RemoveFromFront( n ); + delete n; + } +} + +/************************************************************************/ +//! @brief Add child node to linked list. +/*! + \param n Pointer to node to add to linked list. + \returns <a href="xbretcod_8h.html">Return Codes</a> +*/ +xbInt16 xbExpNode::AddChild( xbExpNode *n ){ + n->SetParent( this ); + return llChildren.InsertAtEnd( n ); +} + +/************************************************************************/ +#ifdef XB_DEBUG_SUPPORT + +//! @brief Dump Node. +/*! + \param iOption xbTrue - Print child info if they exist.<bt> + xbFalse - Don't print child info. + \returns void. +*/ +void xbExpNode::DumpNode( xbInt16 iOption ) const { + xbString sMsg; + std::cout << "Me=[" << this << "] "; + if( nParent ) + std::cout << "Par=[" << nParent << "] "; + + std::cout << "nTyp=[" << cNodeType << "] "; + std::cout << "dTyp=[" << cReturnType << "] "; + if( iWeight != 0 ) + std::cout << "W=[" << iWeight << "] "; + + if( cNodeType == XB_EXP_FIELD ) + std::cout << "FieldNo=[" << iFieldNo << "] "; + + std::cout << "Txt=[" << sNodeText << "] "; + if( sResult != "" ) + std::cout << "sVal=[" << sResult << "] "; + + if( ulResultLen > 0 ) + std::cout << "Len=[" << ulResultLen << "] "; + if( cReturnType == XB_EXP_DATE ){ + xbDate d( (xbInt32) dResult ); + std::cout << "dtVal=[" << d.Str() << "] "; + } + + if( cReturnType == XB_EXP_DATE || cReturnType == XB_EXP_NUMERIC ){ + sMsg.Sprintf( "dVal=[%f]\n", dResult ); + std::cout << sMsg.Str(); + } + + if( cReturnType == XB_EXP_LOGICAL ){ + sMsg.Sprintf( "lVal=[%d]\n", (xbInt32) dResult ); + std::cout << sMsg.Str(); + } + + if( iOption ){ + xbLinkListNode<xbExpNode *> *lln = llChildren.GetHeadNode(); + xbExpNode *n; + if( lln ){ + std::cout << " Children: "; + while( lln ){ + n = lln->GetKey(); + std::cout << " [" << n << "]"; + lln = lln->GetNextNode(); + } + std::cout << std::endl; + + lln = llChildren.GetHeadNode(); + while( lln ){ + n = lln->GetKey(); + n->DumpNode( iOption ); + lln = lln->GetNextNode(); + } + } + } + + std::cout << std::endl; +} +#endif + +/************************************************************************/ +//! @brief Get boolean result. +/*! + \returns Boolean result. +*/ + +xbBool xbExpNode::GetBoolResult() const { + return (xbBool) dResult; +} + +/************************************************************************/ +//! @brief Get pointer to child. +/*! + \param ulChildNo - Which child? 1,2 or3 + \returns Pointer to child node or null if none exists. +*/ +xbExpNode *xbExpNode::GetChild( xbUInt32 ulChildNo ) const { + + xbLinkListNode<xbExpNode *> *lln = llChildren.GetNodeForNo( ulChildNo ); + if( lln ) + return lln->GetKey(); + else + return 0x00; +} +/************************************************************************/ +//! @brief Get child count. +/*! + \returns Child count. +*/ +xbUInt32 xbExpNode::GetChildCnt() const{ + return llChildren.GetNodeCnt(); +} + +/************************************************************************/ +//! @brief Get the current child number for this node. +/*! + \returns Child number: 1, 2 or 3. +*/ + +xbUInt32 xbExpNode::GetChildNo() const { + + if( !nParent ) + return 0; + + for( xbUInt32 i = 0; i < nParent->GetChildCnt(); i++ ){ + if( this == nParent->GetChild( i )){ + // std::cout << "get child no [" << this << "][" << nParent->GetChild(i) << "]\n"; + return i; + } + } + return 0; +} + +/************************************************************************/ +//! @brief Get the dbf pointer. +/*! + \returns Pointer to dbf. +*/ +xbDbf *xbExpNode::GetDbf() const { + return dbf; +} +/************************************************************************/ +//! @brief Get the field number. +/*! + \returns Field number for field node. +*/ + +xbInt16 xbExpNode::GetFieldNo() const { + return iFieldNo; +} + +/*************************************************************************/ +//! @brief Get the first node. +/*! + \returns Pointer to left most child node or *this if childless. +*/ + +xbExpNode *xbExpNode::GetFirstNode() { + xbExpNode *n = this; + while( n && n->GetChildCnt() > 0 ) + n = n->GetChild(0); + return n; +} + +/*************************************************************************/ +//! @brief Get the next node. +/*! + \returns Pointer to right node or parent if right node does not exist. +*/ + +xbExpNode *xbExpNode::GetNextNode() const { + + if( HasRightSibling()) + return GetRightSibling()->GetFirstNode(); + else + return nParent; +} + +/************************************************************************/ +//! @brief Get the node text. +/*! + \param sOutText Output string containing node text. + \returns void +*/ + +void xbExpNode::GetNodeText( xbString &sOutText ) const{ + sOutText = sNodeText; +} + +/************************************************************************/ +//! @brief Get the node type. +/*! + \returns Node type. +*/ + +char xbExpNode::GetNodeType() const{ + return cNodeType; +} + +/************************************************************************/ +//! @brief Get numeric result. +/*! + \returns Numeric result. +*/ + +xbDouble xbExpNode::GetNumericResult() const { + return dResult; +} + +/************************************************************************/ +//! @brief Get parent. +/*! + \returns Pointer to parent node. +*/ + +xbExpNode *xbExpNode::GetParent() const{ + return nParent; +} + +/************************************************************************/ +//! @brief Get result length. +/*! + \returns Result length. +*/ +xbUInt32 xbExpNode::GetResultLen() const{ + return ulResultLen; +} +/************************************************************************/ +//! @brief Get result type. +/*! + \returns Result type. +*/ +char xbExpNode::GetReturnType() const{ + return cReturnType; +} + +/*************************************************************************/ +//! @brief Get right sibling. +/*! + \returns Pointer to right sibling. +*/ + +xbExpNode *xbExpNode::GetRightSibling() const { + + xbExpNode * nParent; + if(( nParent = GetParent()) == NULL ) + return NULL; + + if( nParent->GetChildCnt() <= 0 ) + return NULL; + + xbUInt32 ulChildNo = GetChildNo(); + + if( ulChildNo < (nParent->GetChildCnt() - 1)) + return nParent->GetChild( ulChildNo + 1 ); + else + return NULL; +} +/************************************************************************/ +//! @brief Get string result. +/*! + \returns String result. +*/ +xbString &xbExpNode::GetStringResult(){ + return sResult; +} +/************************************************************************/ +//! @brief Get node weight. +/*! + Each node is assigned a weight used internally to detmerine processing sequence. + \returns Node weight. +*/ + +xbInt16 xbExpNode::GetWeight() const { + return iWeight; +} + +/*************************************************************************/ +//! @brief Determine if node has a right sibling. +/*! + \returns xbTrue - Node has right sibling.<br> + xbFalse - Node has no right sibling. +*/ + +xbBool xbExpNode::HasRightSibling() const { + + // std::cout << "in HasRightSibling [" << sNodeText << "]\n"; + + if( nParent == NULL ) + return xbFalse; + + xbUInt32 ulChildNo = GetChildNo(); + + if( ulChildNo < (nParent->GetChildCnt() - 1)){ + // std::cout << "Has Right Sibling = " << iChildNo << "] of [" << nParent->GetChildCnt() << "]\n"; + return xbTrue; +} + else + return xbFalse; +} + + +/*************************************************************************/ +//! @brief Determine if node is an operator. +/*! + \returns xbTrue - Node is an operator.<br> + xbFalse - Node is not an operator. +*/ + +xbBool xbExpNode::IsOperator() const { + + if( cNodeType == XB_EXP_OPERATOR ) + return xbTrue; + else + return xbFalse; +} + +/*************************************************************************/ +//! @brief Determine if node is a unary operator. +/*! + \returns xbTrue - Node is a unary operator.<br> + xbFalse - Node is not a unary operator. +*/ +xbBool xbExpNode::IsUnaryOperator() const { + + if( cNodeType == XB_EXP_PRE_OPERATOR || cNodeType == XB_EXP_POST_OPERATOR ) + return xbTrue; + else if( cNodeType == XB_EXP_OPERATOR && (sNodeText == ".NOT." || sNodeText == "NOT" )) + return xbTrue; + else + return xbFalse; +} +/************************************************************************/ +//! @brief Remove last child from node. +/*! + \returns void. +*/ + +void xbExpNode::RemoveLastChild(){ + xbExpNode *n; + llChildren.RemoveFromEnd( n ); +} + +/************************************************************************/ +//! @brief Set dbf info on node. +/*! + \param dbf Pointer to dbf. + \param iFieldNo Field number of field. + \returns void. +*/ +void xbExpNode::SetDbfInfo( xbDbf *dbf, xbInt16 iFieldNo ){ + this->dbf = dbf; + this->iFieldNo = iFieldNo; +} + +/************************************************************************/ +//! @brief Set dbf info on node. +/*! + \param dbf Pointer to dbf. + \returns void. +*/ +void xbExpNode::SetDbfInfo( xbDbf *dbf ){ + this->dbf = dbf; +} +/************************************************************************/ +//! @brief Set node type. +/*! + \param cNodeType Node type. + \returns void. +*/ +void xbExpNode::SetNodeType( char cNodeType ){ + this->cNodeType = cNodeType; +} + +/************************************************************************/ +//! @brief Set node text. +/*! + \param sNodeText Node text. + \returns void. +*/ +void xbExpNode::SetNodeText( xbString & sNodeText ){ + this->sNodeText = sNodeText; +} + +/************************************************************************/ +//! @brief Set parent. +/*! + \param n Pointer to parent. + \returns void. +*/ +void xbExpNode::SetParent( xbExpNode *n ){ + this->nParent = n; +} + +/************************************************************************/ +//! @brief Set date result. +/*! + \param dtResult Date result. + \returns void. +*/ +void xbExpNode::SetResult( xbDate &dtResult ){ + this->dResult = dtResult.JulianDays(); +} + +/************************************************************************/ +//! @brief Set boolean result. +/*! + \param bResult Boolean result. + \returns void. +*/ +void xbExpNode::SetResult( xbBool bResult ){ + this->dResult = bResult; +} +/************************************************************************/ +//! @brief Set numeric result. +/*! + \param dResult Double numeric result. + \returns void. +*/ +void xbExpNode::SetResult( xbDouble dResult ){ + this->dResult = dResult; +} +/************************************************************************/ +//! @brief Set string result. +/*! + \param sResult String result. + \returns void. +*/ +void xbExpNode::SetResult( xbString &sResult ){ + this->sResult = sResult; +} +/************************************************************************/ +//! @brief Set result length. +/*! + \param ulResultLen Set result length. + \returns void. +*/ +void xbExpNode::SetResultLen( xbUInt32 ulResultLen ){ + this->ulResultLen = ulResultLen; +} +/************************************************************************/ +//! @brief Set return type. +/*! + \param cReturnType Return Type. + \returns void. +*/ +void xbExpNode::SetReturnType( char cReturnType ){ + this->cReturnType = cReturnType; +} +/************************************************************************/ +//! @brief Set weight. +/*! + \param iWeight Weight to set this node at. + \returns void. +*/ +void xbExpNode::SetWeight( xbInt16 iWeight ){ + this->iWeight = iWeight; +} +/*************************************************************************/ +}; // namespace +#endif // XB_EXPRESSION_SUPPORT +/*************************************************************************/ |