liboce-foundation-dev 0.17.2-2 / usr / include / oce / Dico_Dictionary.gxx

// Copyright (c) 1998-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

//#include <Dico_Dictionary.ixx>  pas en gxx
#include <Standard_NoSuchObject.hxx>
#include <string.h>



// thecars[0] : caractere de consigne, caracterisant la cellule
// thecars[1] : indicateur de presence : 0 rien, ==thecar[0] item present
// thecars[2] : caractere du Sub  ou 0
// thecars[3] : caractere du Next ou 0

//  REMARQUE : Fonctions d acces dupliquees : TCollection_AsciiString / CString
//  C est a chaque fois le MEME CODE, mais Length et Value ne sont pas obtenues
//  de la  meme maniere ...
//  SearchCell pas duplique : la version String appelle la version CString
//  Les autres fonctions doivent d abord evaluer la longueur de <name>
//  Sur String, methode Length, mais sur CString, il faut evaluer par  strlen
//  String serait donc meilleur (plus systematique) MAIS suppose, sur appel
//  CString, de constituer une TCollection_AsciiString ce qui peut couter ...
//  CONCLUSION : Fonctions d acces par Nom dupliquees, pour optimisation


Dico_Dictionary::Dico_Dictionary ()
{
  thecars[0] = thecars[1] = thecars[2] = thecars[3] = '\0';
  thesub.Nullify(); thenext.Nullify();
}

    void Dico_Dictionary::SetChar (const char car)  {  thecars[0] = car;  }


//  ....                        HasItem                                ....

    Standard_Boolean Dico_Dictionary::HasItem
  (const Standard_CString name, const Standard_Boolean exact) const
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  SearchCell (name,strlen(name),name[0],1, acell,reslev,stat);
  if (stat != 0 || reslev != 0) return Standard_False;
  if (acell->HasIt()) return Standard_True;
  if (!exact)    {  if (!acell->Complete(acell)) return Standard_False;  }
  return (acell->HasIt());
}

    Standard_Boolean Dico_Dictionary::HasItem
  (const TCollection_AsciiString& name, const Standard_Boolean exact) const
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  SearchCell (name.ToCString(),name.Length(),name.Value(1),1, acell,reslev,stat);
  if (stat != 0 || reslev != 0) return Standard_False;
  if (acell->HasIt()) return Standard_True;
  if (!exact)    {  if (!acell->Complete(acell)) return Standard_False;  }
  return (acell->HasIt());
}

//  ....                        Item                                ....

    const TheItem& Dico_Dictionary::Item
  (const Standard_CString name, const Standard_Boolean exact) const
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  SearchCell (name,strlen(name),name[0],1, acell,reslev,stat);
  if (stat != 0 || reslev != 0)
    Standard_NoSuchObject::Raise("Dictionary : Item");
  if (acell->HasIt()) return acell->It();
  if (!exact)    {  if (!acell->Complete(acell)) return acell->It();  }
  if (!acell->HasIt()) Standard_NoSuchObject::Raise("Dictionary : Item");
  return (acell->It());
}

    const TheItem& Dico_Dictionary::Item
  (const TCollection_AsciiString& name, const Standard_Boolean exact) const
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  SearchCell (name.ToCString(),name.Length(),name.Value(1),1, acell,reslev,stat);
  if (stat != 0 || reslev != 0)
    Standard_NoSuchObject::Raise("Dictionary : Item");
  if (acell->HasIt()) return acell->It();
  if (!exact)    {  if (!acell->Complete(acell)) return acell->It();  }
  if (!acell->HasIt()) Standard_NoSuchObject::Raise("Dictionary : Item");
  return (acell->It());
}

//  ....                        GetItem                                ....

    Standard_Boolean Dico_Dictionary::GetItem
  (const Standard_CString name,
   TheItem& anitem, const Standard_Boolean exact) const
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  SearchCell (name,strlen(name),name[0],1, acell,reslev,stat);
  if (stat != 0 || reslev != 0) return Standard_False;
  if (acell->HasIt())    {  anitem = acell->It();  return Standard_True;  }
  if (!exact)      {  if (!acell->Complete(acell)) return Standard_False;  }
  anitem = acell->It();
  return (acell->HasIt());
}

    Standard_Boolean Dico_Dictionary::GetItem
  (const TCollection_AsciiString& name,
   TheItem& anitem, const Standard_Boolean exact) const
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  SearchCell (name.ToCString(),name.Length(),name.Value(1),1, acell,reslev,stat);
  if (stat != 0 || reslev != 0) return Standard_False;
  if (acell->HasIt())    {  anitem = acell->It();  return Standard_True;  }
  if (!exact)      {  if (!acell->Complete(acell)) return Standard_False;  }
  anitem = acell->It();
  return (acell->HasIt());
}

//  ....                        SetItem                                ....

    void Dico_Dictionary::SetItem
  (const Standard_CString name,
   const TheItem& anitem, const Standard_Boolean exact)
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  Standard_Size namlen = strlen(name);
  SearchCell (name,namlen,name[0],1, acell,reslev,stat);
  if (!exact && !acell->HasIt())
    {  if (acell->Complete(acell)) { acell->SetIt(anitem); return; }  }
  if (stat < 0) {  cout<<"Dictionary walk back not performed"<<endl; return;  }
  NewCell (name,namlen, acell,reslev,stat);
  acell->SetIt(anitem);
}


    void Dico_Dictionary::SetItem
  (const TCollection_AsciiString& name,
   const TheItem& anitem, const Standard_Boolean exact)
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  Standard_CString namval = name.ToCString();
  Standard_Integer namlen = name.Length();
  SearchCell (namval,namlen,name.Value(1),1, acell,reslev,stat);
  if (!exact && !acell->HasIt())
    {  if (acell->Complete(acell)) { acell->SetIt(anitem); return; }  }
  if (stat < 0) {  cout<<"Dictionary walk back not performed"<<endl; return;  }
  NewCell (namval,namlen, acell,reslev,stat);
  acell->SetIt(anitem);
}


//  ....                        NewItem                                ....

    TheItem& Dico_Dictionary::NewItem
  (const Standard_CString name,
   Standard_Boolean& isvalued, const Standard_Boolean exact)
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  Standard_Size namlen = strlen(name);
  SearchCell (name,namlen,name[0],1, acell,reslev,stat);
  if (stat == 0 && reslev == 0) {
    isvalued = acell->HasIt();    // ancien statut
    acell->DeclIt();              // nouveau statut = value d office
    return acell->ItAdr();
  }
  if (!exact) {
    if (acell->Complete(acell))
      {  isvalued = acell->HasIt(); acell->DeclIt();  return acell->ItAdr();  }
  }
  if (stat < 0) {   Standard_NoSuchObject::Raise("Dictionary : NewItem");  }
  NewCell (name,namlen, acell,reslev,stat);
  isvalued = acell->HasIt();    // ancien statut
  acell->DeclIt();              // nouveau statut = value d office
  return acell->ItAdr();
}


    TheItem& Dico_Dictionary::NewItem
  (const TCollection_AsciiString& name,
   Standard_Boolean& isvalued, const Standard_Boolean exact)
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  Standard_Integer namlen = name.Length();
  Standard_CString namval = name.ToCString();
  SearchCell (namval,namlen,name.Value(1),1, acell,reslev,stat);
  if (stat == 0 && reslev == 0) {
    isvalued = acell->HasIt();    // ancien statut
    acell->DeclIt();              // nouveau statut = value d office
    return acell->ItAdr();
  }
  if (!exact) {
    if (acell->Complete(acell))
      {  isvalued = acell->HasIt(); acell->DeclIt();  return acell->ItAdr();  }
  }
  if (stat < 0) {   Standard_NoSuchObject::Raise("Dictionary : NewItem");  }
  NewCell (namval,namlen, acell,reslev,stat);
  isvalued = acell->HasIt();    // ancien statut
  acell->DeclIt();              // nouveau statut = value d office
  return acell->ItAdr();
}

//  ....                        RemoveItem                                ....

    Standard_Boolean Dico_Dictionary::RemoveItem
  (const Standard_CString name,
   const Standard_Boolean cln, const Standard_Boolean exact)
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  SearchCell (name,strlen(name),name[0],1, acell,reslev,stat);
//  if (stat != 0) { cout<<"Dictionary : RemoveItem not found"<<endl; return; }
  if (stat != 0) return Standard_False;
  if (!exact && !acell->HasIt())
    {  if (!acell->Complete(acell)) return Standard_False;  }
  acell->RemoveIt();
  if (cln) Clean();
  return Standard_True;
}

    Standard_Boolean Dico_Dictionary::RemoveItem
  (const TCollection_AsciiString& name,
   const Standard_Boolean cln, const Standard_Boolean exact)
{
  Handle(Dico_Dictionary) acell;
  Standard_Integer stat;
  Standard_Size reslev;
  SearchCell (name.ToCString(),name.Length(),name.Value(1),1, acell,reslev,stat);
//  if (stat != 0) { cout<<"Dictionary : RemoveItem not found"<<endl; return; }
  if (stat != 0) return Standard_False;
  if (!exact && !acell->HasIt())
    {  if (!acell->Complete(acell)) return Standard_False;  }
  acell->RemoveIt();
  if (cln) Clean();
  return Standard_True;
}

//  ....                Methodes d Interet General                        ....

    void Dico_Dictionary::Clean ()
{
  if (HasSub()) {
    thesub->Clean();
    if (!thesub->HasIt() && !thesub->HasSub()) {    // alors prendre son Next
      if (thesub->HasNext()) {
	thesub = thesub->Next();
	thecars[2] = thesub->CellChar();
      } else {
	thesub.Nullify();
	thecars[2] = '\0';
      }
    }
  }
  if (HasNext()) {
    thenext->Clean();
    if (!thenext->HasIt() && !thenext->HasSub()) {    // alors prendre son Next
      if (thenext->HasNext()) {
	thenext = thenext->Next();
	thecars[3] = thenext->CellChar();
      } else {
	thenext.Nullify();
	thecars[3] = '\0';
      }
    }
  }
}

    Standard_Boolean Dico_Dictionary::IsEmpty () const
{
  if (thecars[1] != '\0') return Standard_False;
  if (!thesub.IsNull())
    {  if (!thesub->IsEmpty()) return Standard_False;  }
  if (!thenext.IsNull())
    {  if (!thenext->IsEmpty()) return Standard_False;  }
  return Standard_True;
}

    void Dico_Dictionary::Clear ()
{
  thecars[0] = thecars[1] = thecars[2] = thecars[3] = '\0';
  thesub.Nullify();  thenext.Nullify();
}


    Handle(Dico_Dictionary) Dico_Dictionary::Copy () const
{
  Handle(Dico_Dictionary) newdic = new Dico_Dictionary;
//    Handle(Dico_Dictionary)::DownCast(ShallowCopy());
  newdic->GetCopied(this);    // qui doit gerer completement thecars et item
  return newdic;
}

//  ########################################################################

// ....                        Routines internes                        ....

    Standard_Boolean Dico_Dictionary::HasSub () const
      {  return (thecars[2] != '\0');  }

    Handle(Dico_Dictionary) Dico_Dictionary::Sub () const   { return thesub;  }

    Standard_Boolean Dico_Dictionary::HasNext () const
      {  return (thecars[3] != '\0');  }

    Handle(Dico_Dictionary) Dico_Dictionary::Next () const  { return thenext; }

    void Dico_Dictionary::SetSub (const Handle(Dico_Dictionary)& acell)
{
  thesub = acell;      thecars[2] = '\0';
  if (!acell.IsNull()) thecars[2] = acell->CellChar();
}

    void Dico_Dictionary::SetNext (const Handle(Dico_Dictionary)& acell)
{
  thenext = acell;     thecars[3] = '\0';
  if (!acell.IsNull()) thecars[3] = acell->CellChar();
}

//  ....                            SearchCell                            ....

    void Dico_Dictionary::SearchCell
      (const Standard_CString name,  const Standard_Size lmax,
       const Standard_Character car, const Standard_Size level,
       Handle(Dico_Dictionary)& acell,
       Standard_Size& reslev,     Standard_Integer& stat) const
{
  reslev = lmax - level;
  if      (car > thecars[0]) {
    if (thecars[3] == '\0')     {  acell = this;  stat   =  1;    return;  }
    else {                                      // ici, HasNext
      if (thecars[3] > car)     {  acell = this;  stat   =  1;    return;  }
      Standard_Integer stat2;
      Standard_Size lev2;
      thenext->SearchCell (name,lmax,car,level,acell,lev2,stat2);
      if (stat2 < 0)            {  acell = this;  stat   =  1;    return;  }
      else                      {  stat = stat2;  reslev = lev2;  return;  }
    }
  }
  else if (car == thecars[0]) {
    if (reslev == 0 || thecars[2] == '\0')      // c-a-d !HasSub
                                {  acell = this;  stat   =  0;    return;  }
    else {
      Standard_Character carsub = name[level];  // caractere no (level+1);
      if (thecars[2] > carsub)  {  acell = this;  stat   =  0;    return;  }
      Standard_Integer stat2;
      Standard_Size lev2;
      thesub->SearchCell (name,lmax,carsub,level+1,acell,lev2,stat2);
      if (stat2 < 0)            {  acell = this;  stat   =  0;    return;  }
      else                      {  stat = stat2;  reslev = lev2;  return;  }
    }
  }
  else if (car < thecars[0])    {  acell = this;  stat   = -1;    return;  }
}


//  ....                            NewCell                            ....

    void Dico_Dictionary::NewCell
  (const Standard_CString name, const Standard_Size namlen,
   Handle(Dico_Dictionary)& acell,
   const Standard_Size reslev, const Standard_Integer stat)
{
  Standard_Size level = namlen - reslev;
  if (stat > 0) {    // Creer une cellule next
    Handle(Dico_Dictionary) newcell = new Dico_Dictionary;
    newcell->SetChar( name[level-1] );      // caractere no level
    if (acell->HasNext()) newcell->SetNext(acell->Next());
    acell->SetNext(newcell);
    acell = newcell;
  }
//  A present, voir les sous-niveaux
  for (Standard_Size i = level+1; i <= namlen; i ++) {
    Handle(Dico_Dictionary) newcell = new Dico_Dictionary;
    newcell->SetChar(name[i-1]);
    if (acell->HasSub()) newcell->SetNext(acell->Sub());
    acell->SetSub(newcell);
    acell = newcell;
  }
}


    Standard_Boolean Dico_Dictionary::Complete
  (Handle(Dico_Dictionary)& newcell) const
{
  if (!HasSub())            {  newcell = this; return HasIt();  }
  if (HasIt())              {  newcell = this; return Standard_False;  }
  if (thesub->HasNext())    {  newcell = this; return Standard_False;  }
  return thesub->Complete (newcell);
}


//  ##    ##    ##    ##    ##    ##    ##    ##    ##    ##    ##    ##    ##
//  ....                    Actions Internes Unitaires                    ....

    Standard_Boolean Dico_Dictionary::HasIt () const
      {  return (thecars[1] != '\0');  }

    const TheItem& Dico_Dictionary::It () const           {  return theitem;  }

    TheItem& Dico_Dictionary::ItAdr ()                    {  return theitem;  }

    void Dico_Dictionary::SetIt (const TheItem& anitem)
      {  theitem = anitem;  thecars[1] = thecars[0];  }

    void Dico_Dictionary::DeclIt ()              {  thecars[1] = thecars[0];  }

    void Dico_Dictionary::RemoveIt ()                  {  thecars[1] = '\0';  }

    Standard_Character Dico_Dictionary::CellChar () const
      {  return thecars[0];  }

    void Dico_Dictionary::GetCopied (const Handle(Dico_Dictionary)& fromcell)
{
  thecars[0] = fromcell->CellChar();
//  On reprend l item s ilyena un
  if (fromcell->HasIt()) {
    thecars[1] = thecars[0];
    theitem = fromcell->It();
  }
  else thecars[1] = '\0';

//  On saute les noeuds vides
  if (fromcell->HasSub()) {
    thesub   = fromcell->Sub()->Copy();
    while (!thesub->HasIt() && !thesub->HasSub()) {
      thesub = thesub->Next();
      if (thesub.IsNull()) { thecars[2] = '\0'; break; }
      else                   thecars[2] = thesub->CellChar();
    }
  }

  if (fromcell->HasNext()) {
    thenext  = fromcell->Next()->Copy();
    while (!thenext->HasIt() && !thenext->HasSub()) {
      thenext = thenext->Next();
      if (thenext.IsNull()) { thecars[3] = '\0'; break; }
      else                    thecars[3] = thenext->CellChar();
    }
  }
}