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XercesXPath.hpp
资源名称：xerces-c-src1_6_0.tar.gz　[点击查看]
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上传日期：2007-01-10
资源大小：6948k
文件大小：20k
源码类别：

xml/soap/webservice

开发平台：

C/C++

XercesXPath.hpp：源码内容
  1. /*
  2.  * The Apache Software License, Version 1.1
  3.  *
  4.  * Copyright (c) 2001 The Apache Software Foundation.  All rights
  5.  * reserved.
  6.  *
  7.  * Redistribution and use in source and binary forms, with or without
  8.  * modification, are permitted provided that the following conditions
  9.  * are met:
  10.  *
  11.  * 1. Redistributions of source code must retain the above copyright
  12.  *    notice, this list of conditions and the following disclaimer.
  13.  *
  14.  * 2. Redistributions in binary form must reproduce the above copyright
  15.  *    notice, this list of conditions and the following disclaimer in
  16.  *    the documentation and/or other materials provided with the
  17.  *    distribution.
  18.  *
  19.  * 3. The end-user documentation included with the redistribution,
  20.  *    if any, must include the following acknowledgment:
  21.  *       "This product includes software developed by the
  22.  *        Apache Software Foundation (http://www.apache.org/)."
  23.  *    Alternately, this acknowledgment may appear in the software itself,
  24.  *    if and wherever such third-party acknowledgments normally appear.
  25.  *
  26.  * 4. The names "Xerces" and "Apache Software Foundation" must
  27.  *    not be used to endorse or promote products derived from this
  28.  *    software without prior written permission. For written
  29.  *    permission, please contact apache@apache.org.
  30.  *
  31.  * 5. Products derived from this software may not be called "Apache",
  32.  *    nor may "Apache" appear in their name, without prior written
  33.  *    permission of the Apache Software Foundation.
  34.  *
  35.  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
  36.  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  37.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  38.  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
  39.  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  40.  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  41.  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  42.  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  43.  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  44.  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  45.  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  46.  * SUCH DAMAGE.
  47.  * ====================================================================
  48.  *
  49.  * This software consists of voluntary contributions made by many
  50.  * individuals on behalf of the Apache Software Foundation, and was
  51.  * originally based on software copyright (c) 2001, International
  52.  * Business Machines, Inc., http://www.ibm.com .  For more information
  53.  * on the Apache Software Foundation, please see
  54.  * <http://www.apache.org/>.
  55.  */
  57. /*
  58.  * $Id: XercesXPath.hpp,v 1.3 2001/11/15 17:10:19 knoaman Exp $
  59.  */
  61. #if !defined(XERCESXPATH_HPP)
  62. #define XERCESXPATH_HPP
  65. // ---------------------------------------------------------------------------
  66. //  Includes
  67. // ---------------------------------------------------------------------------
  68. #include <util/QName.hpp>
  69. #include <util/RefVectorOf.hpp>
  70. #include <util/ValueVectorOf.hpp>
  72. // ---------------------------------------------------------------------------
  73. //  Forward Declarations
  74. // ---------------------------------------------------------------------------
  75. class XMLStringPool;
  76. class NamespaceScope;
  79. class VALIDATORS_EXPORT XercesNodeTest
  80. {
  81. public:
  82.     // -----------------------------------------------------------------------
  83.     //  Constants
  84.     // -----------------------------------------------------------------------
  85.     enum {
  86.         QNAME = 1,
  87.         WILDCARD = 2,
  88.         NODE = 3,
  89.         NAMESPACE= 4
  90.     };
  92.     // -----------------------------------------------------------------------
  93.     //  Constructors/Destructor
  94.     // -----------------------------------------------------------------------
  95.     XercesNodeTest(const short type);
  96.     XercesNodeTest(const QName* const qName);
  97.     XercesNodeTest(const XMLCh* const prefix, const unsigned int uriId);
  98.     XercesNodeTest(const XercesNodeTest& other);
  99.     ~XercesNodeTest() { delete fName; }
  101.     // -----------------------------------------------------------------------
  102.     //  Operators
  103.     // -----------------------------------------------------------------------
  104.     XercesNodeTest& operator= (const XercesNodeTest& other);
  105.     bool operator== (const XercesNodeTest& other) const;
  106.     bool operator!= (const XercesNodeTest& other) const;
  108. // -----------------------------------------------------------------------
  109.     //  Getter methods
  110.     // -----------------------------------------------------------------------
  111.     short getType() const { return fType; }
  112.     QName* getName() const { return fName; }
  114. private:
  115.     // -----------------------------------------------------------------------
  116.     //  Data members
  117.     // -----------------------------------------------------------------------
  118.     short  fType;
  119.     QName* fName;
  120. };
  123. /**
  124.   * A location path step comprised of an axis and node test.
  125.   */
  126. class VALIDATORS_EXPORT XercesStep {
  127. public:
  128.     // -----------------------------------------------------------------------
  129.     //  Constants
  130.     // -----------------------------------------------------------------------
  131.     enum { // Axis type
  132.         CHILD = 1,
  133.         ATTRIBUTE = 2,
  134.         SELF = 3,
  135.         DESCENDANT = 4
  136.     };
  138.     // -----------------------------------------------------------------------
  139.     //  Constructors/Destructor
  140.     // -----------------------------------------------------------------------
  141.     XercesStep(const unsigned short axisType, XercesNodeTest* const nodeTest);
  142.     XercesStep(const XercesStep& other);
  143.     ~XercesStep() { delete fNodeTest; }
  145.     // -----------------------------------------------------------------------
  146.     //  Operators
  147.     // -----------------------------------------------------------------------
  148.     XercesStep& operator= (const XercesStep& other);
  149.     bool operator== (const XercesStep& other) const;
  150.     bool operator!= (const XercesStep& other) const;
  152. // -----------------------------------------------------------------------
  153.     //  Getter methods
  154.     // -----------------------------------------------------------------------
  155.     unsigned short getAxisType() const { return fAxisType; }
  156.     XercesNodeTest* getNodeTest() const { return fNodeTest; }
  158. private:
  159.     // -----------------------------------------------------------------------
  160.     //  Data members
  161.     // -----------------------------------------------------------------------
  162.     unsigned short  fAxisType;
  163.     XercesNodeTest* fNodeTest;
  164. };
  167. /**
  168.   * A location path representation for an XPath expression.
  169.   */
  170. class VALIDATORS_EXPORT XercesLocationPath
  171. {
  172. public:
  173.     // -----------------------------------------------------------------------
  174.     //  Constructors/Destructor
  175.     // -----------------------------------------------------------------------
  176.     XercesLocationPath();
  177.     XercesLocationPath(RefVectorOf<XercesStep>* const steps);
  178.     ~XercesLocationPath() { delete fSteps; }
  180.     // -----------------------------------------------------------------------
  181.     //  Operators
  182.     // -----------------------------------------------------------------------
  183.     bool operator== (const XercesLocationPath& other) const;
  184.     bool operator!= (const XercesLocationPath& other) const;
  186.     // -----------------------------------------------------------------------
  187.     //  Access methods
  188.     // -----------------------------------------------------------------------
  189.     unsigned int getStepSize() const;
  190.     void addStep(XercesStep* const aStep);
  191.     XercesStep* getStep(const unsigned int index) const;
  193. private:
  194.     // -----------------------------------------------------------------------
  195.     //  Unimplemented contstructors and operators
  196.     // -----------------------------------------------------------------------
  197.     XercesLocationPath(const XercesLocationPath& other);
  198.     XercesLocationPath& operator= (const XercesLocationPath& other);
  200.     // -----------------------------------------------------------------------
  201.     //  Data members
  202.     // -----------------------------------------------------------------------
  203.     RefVectorOf<XercesStep>* fSteps;
  204. };
  207. class VALIDATORS_EXPORT XercesXPath
  208. {
  209. public:
  210.     // -----------------------------------------------------------------------
  211.     //  Constants
  212.     // -----------------------------------------------------------------------
  213.     /**
  214.       * [28] ExprToken ::= '(' | ')' | '[' | ']' | '.' | '..' | '@' | ',' | '::'
  215.       *                  | NameTest | NodeType | Operator | FunctionName
  216.       *                  | AxisName | Literal | Number | VariableReference
  217.       */
  218.     enum {
  219.         EXPRTOKEN_OPEN_PAREN                  =  0,
  220.         EXPRTOKEN_CLOSE_PAREN                 =  1,
  221.         EXPRTOKEN_OPEN_BRACKET                =  2,
  222.         EXPRTOKEN_CLOSE_BRACKET               =  3,
  223.         EXPRTOKEN_PERIOD                      =  4,
  224.         EXPRTOKEN_DOUBLE_PERIOD               =  5,
  225.         EXPRTOKEN_ATSIGN                      =  6,
  226.         EXPRTOKEN_COMMA                       =  7,
  227.         EXPRTOKEN_DOUBLE_COLON                =  8,
  228.         EXPRTOKEN_NAMETEST_ANY                =  9,
  229.         EXPRTOKEN_NAMETEST_NAMESPACE          = 10,
  230.         EXPRTOKEN_NAMETEST_QNAME              = 11,
  231.         EXPRTOKEN_NODETYPE_COMMENT            = 12,
  232.         EXPRTOKEN_NODETYPE_TEXT               = 13,
  233.         EXPRTOKEN_NODETYPE_PI                 = 14,
  234.         EXPRTOKEN_NODETYPE_NODE               = 15,
  235.         EXPRTOKEN_OPERATOR_AND                = 16,
  236.         EXPRTOKEN_OPERATOR_OR                 = 17,
  237.         EXPRTOKEN_OPERATOR_MOD                = 18,
  238.         EXPRTOKEN_OPERATOR_DIV                = 19,
  239.         EXPRTOKEN_OPERATOR_MULT               = 20,
  240.         EXPRTOKEN_OPERATOR_SLASH              = 21,
  241.         EXPRTOKEN_OPERATOR_DOUBLE_SLASH       = 22,
  242.         EXPRTOKEN_OPERATOR_UNION              = 23,
  243.         EXPRTOKEN_OPERATOR_PLUS               = 24,
  244.         EXPRTOKEN_OPERATOR_MINUS              = 25,
  245.         EXPRTOKEN_OPERATOR_EQUAL              = 26,
  246.         EXPRTOKEN_OPERATOR_NOT_EQUAL          = 27,
  247.         EXPRTOKEN_OPERATOR_LESS               = 28,
  248.         EXPRTOKEN_OPERATOR_LESS_EQUAL         = 29,
  249.         EXPRTOKEN_OPERATOR_GREATER            = 30,
  250.         EXPRTOKEN_OPERATOR_GREATER_EQUAL      = 31,
  251.         EXPRTOKEN_FUNCTION_NAME               = 32,
  252.         EXPRTOKEN_AXISNAME_ANCESTOR           = 33,
  253.         EXPRTOKEN_AXISNAME_ANCESTOR_OR_SELF   = 34,
  254.         EXPRTOKEN_AXISNAME_ATTRIBUTE          = 35,
  255.         EXPRTOKEN_AXISNAME_CHILD              = 36,
  256.         EXPRTOKEN_AXISNAME_DESCENDANT         = 37,
  257.         EXPRTOKEN_AXISNAME_DESCENDANT_OR_SELF = 38,
  258.         EXPRTOKEN_AXISNAME_FOLLOWING          = 39,
  259.         EXPRTOKEN_AXISNAME_FOLLOWING_SIBLING  = 40,
  260.         EXPRTOKEN_AXISNAME_NAMESPACE          = 41,
  261.         EXPRTOKEN_AXISNAME_PARENT             = 42,
  262.         EXPRTOKEN_AXISNAME_PRECEDING          = 43,
  263.         EXPRTOKEN_AXISNAME_PRECEDING_SIBLING  = 44,
  264.         EXPRTOKEN_AXISNAME_SELF               = 45,
  265.         EXPRTOKEN_LITERAL                     = 46,
  266.         EXPRTOKEN_NUMBER                      = 47,
  267.         EXPRTOKEN_VARIABLE_REFERENCE          = 48
  268.     };
  270.     // -----------------------------------------------------------------------
  271.     //  Constructors/Destructor
  272.     // -----------------------------------------------------------------------
  273.     XercesXPath(const XMLCh* const xpathExpr,
  274.                 XMLStringPool* const stringPool,
  275.                 NamespaceScope* const scopeContext,
  276.                 const unsigned int emptyNamespaceId,
  277.                 const bool isSelector = false);
  278. ~XercesXPath();
  280.     // -----------------------------------------------------------------------
  281.     //  Operators
  282.     // -----------------------------------------------------------------------
  283.     bool operator== (const XercesXPath& other) const;
  284.     bool operator!= (const XercesXPath& other) const;
  286.     // -----------------------------------------------------------------------
  287.     //  Constructors/Destructor
  288.     // -----------------------------------------------------------------------
  289.     RefVectorOf<XercesLocationPath>* getLocationPaths() const;
  291. private:
  292.     // -----------------------------------------------------------------------
  293.     //  Unimplemented contstructors and operators
  294.     // -----------------------------------------------------------------------
  295.     XercesXPath(const XercesXPath& other);
  296.     XercesXPath& operator= (const XercesXPath& other);
  298.     // -----------------------------------------------------------------------
  299.     //  Helper methods
  300.     // -----------------------------------------------------------------------
  301.     void cleanUp();
  302.     void checkForSelectedAttributes();
  303.     void parseExpression(XMLStringPool* const stringPool,
  304.                          NamespaceScope* const scopeContext);
  306.     // -----------------------------------------------------------------------
  307.     //  Data members
  308.     // -----------------------------------------------------------------------
  309.     unsigned int                     fEmptyNamespaceId;
  310.     XMLCh*                           fExpression;
  311.     RefVectorOf<XercesLocationPath>* fLocationPaths;
  312. };
  315. class VALIDATORS_EXPORT XPathScanner
  316. {
  317. public:
  318.     // -----------------------------------------------------------------------
  319.     //  Constants
  320.     // -----------------------------------------------------------------------
  321.     enum {
  322.         CHARTYPE_INVALID            =  0,   // invalid XML character
  323.         CHARTYPE_OTHER              =  1,   // not special - one of "#%&;?^`{}~" or DEL
  324.         CHARTYPE_WHITESPACE         =  2,   // one of "tnr " (0x09, 0x0A, 0x0D, 0x20)
  325.         CHARTYPE_EXCLAMATION        =  3,   // '!' (0x21)
  326.         CHARTYPE_QUOTE              =  4,   // '"' or ''' (0x22 and 0x27)
  327.         CHARTYPE_DOLLAR             =  5,   // '$' (0x24)
  328.         CHARTYPE_OPEN_PAREN         =  6,   // '(' (0x28)
  329.         CHARTYPE_CLOSE_PAREN        =  7,   // ')' (0x29)
  330.         CHARTYPE_STAR               =  8,   // '*' (0x2A)
  331.         CHARTYPE_PLUS               =  9,   // '+' (0x2B)
  332.         CHARTYPE_COMMA              = 10,   // ',' (0x2C)
  333.         CHARTYPE_MINUS              = 11,   // '-' (0x2D)
  334.         CHARTYPE_PERIOD             = 12,   // '.' (0x2E)
  335.         CHARTYPE_SLASH              = 13,   // '/' (0x2F)
  336.         CHARTYPE_DIGIT              = 14,   // '0'-'9' (0x30 to 0x39)
  337.         CHARTYPE_COLON              = 15,   // ':' (0x3A)
  338.         CHARTYPE_LESS               = 16,   // '<' (0x3C)
  339.         CHARTYPE_EQUAL              = 17,   // '=' (0x3D)
  340.         CHARTYPE_GREATER            = 18,   // '>' (0x3E)
  341.         CHARTYPE_ATSIGN             = 19,   // '@' (0x40)
  342.         CHARTYPE_LETTER             = 20,   // 'A'-'Z' or 'a'-'z' (0x41 to 0x5A and 0x61 to 0x7A)
  343.         CHARTYPE_OPEN_BRACKET       = 21,   // '[' (0x5B)
  344.         CHARTYPE_CLOSE_BRACKET      = 22,   // ']' (0x5D)
  345.         CHARTYPE_UNDERSCORE         = 23,   // '_' (0x5F)
  346.         CHARTYPE_UNION              = 24,   // '|' (0x7C)
  347.         CHARTYPE_NONASCII           = 25   // Non-ASCII Unicode codepoint (>= 0x80)
  348.     };
  350.     // -----------------------------------------------------------------------
  351.     //  Constructors/Destructor
  352.     // -----------------------------------------------------------------------
  353.     XPathScanner(XMLStringPool* const stringPool);
  354.     virtual ~XPathScanner() {}
  356.     // -----------------------------------------------------------------------
  357.     //  Scan methods
  358.     // -----------------------------------------------------------------------
  359.     bool scanExpression(const XMLCh* const data, int currentOffset,
  360.                         const int endOffset, ValueVectorOf<int>* const tokens);
  362. protected: 
  363.     // -----------------------------------------------------------------------
  364.     //  Helper methods
  365.     // -----------------------------------------------------------------------
  366.     /**
  367.       * This method adds the specified token to the token list. By default,
  368.       * this method allows all tokens. However, subclasses can can override
  369.       * this method in order to disallow certain tokens from being used in the
  370.       * scanned XPath expression. This is a convenient way of allowing only
  371.       * a subset of XPath.
  372.       */
  373.     virtual void addToken(ValueVectorOf<int>* const tokens, const int aToken);
  375. private:
  376.     // -----------------------------------------------------------------------
  377.     //  Unimplemented contstructors and operators
  378.     // -----------------------------------------------------------------------
  379.     XPathScanner(const XPathScanner& other);
  380.     XPathScanner& operator= (const XPathScanner& other);
  382.     // -----------------------------------------------------------------------
  383.     //  Helper methods
  384.     // -----------------------------------------------------------------------
  385.     void init();
  387.     // -----------------------------------------------------------------------
  388.     //  Scan methods
  389.     // -----------------------------------------------------------------------
  390.     int scanNCName(const XMLCh* const data, const int endOffset,
  391.                    int currentOffset);
  392.     int scanNumber(const XMLCh* const data, const int endOffset,
  393.                    int currentOffset, ValueVectorOf<int>* const tokens);
  395.     // -----------------------------------------------------------------------
  396.     //  Data members
  397.     // -----------------------------------------------------------------------
  398.     int fAndSymbol;
  399.     int fOrSymbol;
  400.     int fModSymbol;
  401.     int fDivSymbol;
  402.     int fCommentSymbol;
  403.     int fTextSymbol;
  404.     int fPISymbol;
  405.     int fNodeSymbol;
  406.     int fAncestorSymbol;
  407.     int fAncestorOrSelfSymbol;
  408.     int fAttributeSymbol;
  409.     int fChildSymbol;
  410.     int fDescendantSymbol;
  411.     int fDescendantOrSelfSymbol;
  412.     int fFollowingSymbol;
  413.     int fFollowingSiblingSymbol;
  414.     int fNamespaceSymbol;
  415.     int fParentSymbol;
  416.     int fPrecedingSymbol;
  417.     int fPrecedingSiblingSymbol;
  418.     int fSelfSymbol;
  419.     XMLStringPool* fStringPool;
  421.     static const XMLByte fASCIICharMap[128];
  422. };
  425. class VALIDATORS_EXPORT XPathScannerForSchema: public XPathScanner
  426. {
  427. public:
  428.     // -----------------------------------------------------------------------
  429.     //  Constructors/Destructor
  430.     // -----------------------------------------------------------------------
  431.     XPathScannerForSchema(XMLStringPool* const stringPool);
  432.     ~XPathScannerForSchema() {}
  434. protected: 
  435.     // -----------------------------------------------------------------------
  436.     //  Helper methods
  437.     // -----------------------------------------------------------------------
  438.     void addToken(ValueVectorOf<int>* const tokens, const int aToken);
  440. private:
  441.     // -----------------------------------------------------------------------
  442.     //  Unimplemented contstructors and operators
  443.     // -----------------------------------------------------------------------
  444.     XPathScannerForSchema(const XPathScannerForSchema& other);
  445.     XPathScannerForSchema& operator= (const XPathScannerForSchema& other);
  446. };
  448. // ---------------------------------------------------------------------------
  449. //  XercesLocationPath: Access methods
  450. // ---------------------------------------------------------------------------
  451. inline unsigned int XercesLocationPath::getStepSize() const {
  453.     if (fSteps)
  454.         return fSteps->size();
  456.     return 0;
  457. }
  459. inline void XercesLocationPath::addStep(XercesStep* const aStep) {
  461.     if (!fSteps) {
  462.         fSteps = new RefVectorOf<XercesStep>(16);
  463.     }
  465.     fSteps->addElement(aStep);
  466. }
  468. inline XercesStep* XercesLocationPath::getStep(const unsigned int index) const {
  470.     if (fSteps)
  471.         return fSteps->elementAt(index);
  473.     return 0;
  474. }
  476. // ---------------------------------------------------------------------------
  477. //  XercesScanner: Helper methods
  478. // ---------------------------------------------------------------------------
  479. inline void XPathScanner::addToken(ValueVectorOf<int>* const tokens,
  480.                                    const int aToken) {
  481.     tokens->addElement(aToken);
  482. }
  485. // ---------------------------------------------------------------------------
  486. //  XercesXPath: Getter methods
  487. // ---------------------------------------------------------------------------
  488. inline RefVectorOf<XercesLocationPath>* XercesXPath::getLocationPaths() const {
  490.     return fLocationPaths;
  491. }
  493. #endif
  495. /**
  496.   * End of file XercesPath.hpp
  497.   */