include/ContentState.h

   1 // Copyright (c) 1994, 1996 James Clark
   2 // See the file COPYING for copying permission.
   3
   4 #ifndef ContentState_INCLUDED
   5 #define ContentState_INCLUDED 1
   6
   7 #ifdef __GNUG__
   8 #pragma interface
   9 #endif
  10
  11 #include <stddef.h>
  12 #include "OpenElement.h"
  13 #include "IList.h"
  14 #include "Vector.h"
  15 #include "Message.h"
  16 #include "Dtd.h"
  17 #include "Mode.h"
  18 #include "Boolean.h"
  19
  20 #ifdef SP_NAMESPACE
  21 namespace SP_NAMESPACE {
  22 #endif
  23
  24 class SP_API ContentState {
  25 public:
  26   ContentState();
  27   void startContent(const Dtd &);
  28   void pushElement(OpenElement *);
  29   OpenElement *popSaveElement();
  30   void popElement();
  31   OpenElement &currentElement();
  32   const OpenElement &currentElement() const;
  33   void getOpenElementInfo(Vector<OpenElementInfo> &,
  34                           const StringC &rniPcdata) const;
  35   unsigned tagLevel() const;
  36   Boolean elementIsIncluded(const ElementType *) const;
  37   Boolean elementIsExcluded(const ElementType *) const;
  38   Boolean elementIsOpen(const ElementType *) const;
  39   Boolean afterDocumentElement() const;
  40   const ElementType *lastEndedElementType() const;
  41   Mode contentMode() const;
  42   ElementType *lookupCreateUndefinedElement(const StringC &,
  43                                             const Location &,
  44                                             Dtd &,
  45                                             Boolean allowImmediateRecursion = 1);
  46   Boolean checkImplyLoop(unsigned);
  47   static const ShortReferenceMap theEmptyMap;
  48 private:
  49   IList<OpenElement> openElements_;
  50   Vector<unsigned> openElementCount_;
  51   Vector<unsigned> includeCount_;
  52   Vector<unsigned> excludeCount_;
  53   unsigned totalExcludeCount_;
  54   unsigned tagLevel_;
  55   unsigned netEnablingCount_;
  56   unsigned long nextIndex_;
  57   const ElementType *lastEndedElementType_;
  58   ElementType documentElementContainer_;
  59 };
  60
  61 inline
  62 OpenElement &ContentState::currentElement()
  63 {
  64   return *openElements_.head();
  65 }
  66
  67 inline
  68 const OpenElement &ContentState::currentElement() const
  69 {
  70   return *openElements_.head();
  71 }
  72
  73 inline
  74 Boolean ContentState::elementIsOpen(const ElementType *e) const
  75 {
  76   return openElementCount_[e->index()] != 0;
  77 }
  78
  79 inline
  80 Boolean ContentState::elementIsIncluded(const ElementType *e) const
  81 {
  82   return includeCount_[e->index()] != 0 && excludeCount_[e->index()] == 0;
  83 }
  84
  85 inline
  86 Boolean ContentState::elementIsExcluded(const ElementType *e) const
  87 {
  88   return excludeCount_[e->index()] != 0;
  89 }
  90
  91 inline
  92 const ElementType *ContentState::lastEndedElementType() const
  93 {
  94   return lastEndedElementType_;
  95 }
  96
  97 inline
  98 unsigned ContentState::tagLevel() const
  99 {
 100   return tagLevel_;
 101 }
 102
 103 inline
 104 Boolean ContentState::afterDocumentElement() const
 105 {
 106   return tagLevel() == 0 && currentElement().isFinished();
 107 }
 108
 109 inline
 110 Mode ContentState::contentMode() const
 111 {
 112   return openElements_.head()->mode(netEnablingCount_ > 0);
 113 }
 114
 115 #ifdef SP_NAMESPACE
 116 }
 117 #endif
 118
 119 #endif /* not ContentState_INCLUDED */