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bearsoft |
1.1 |
#include "StringLinkedList.h"
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#include "../System/SystemDefine.h"
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#include "../String/StringTools.h"
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#include "../Sort/StringLinkedListQuickSort.h"
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StringLinkedList::StringLinkedList()
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{
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howfar=0;
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}
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////////////////////////////////////////////////////////////////////////////////////
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//free memory for all Elements that exsist in the LinkedList
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////////////////////////////////////////////////////////////////////////////////////
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StringLinkedList::~StringLinkedList()
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{
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removeAllElement();
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}
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////////////////////////////////////////////////////////////////////////////////////
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//free memory for all Elements that exsist in the LinkedList
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////////////////////////////////////////////////////////////////////////////////////
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void StringLinkedList::removeAllElement()
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{
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if ( howfar != 0 )
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{
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StringElement *element=first;
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for ( int s=0; s<howfar ; s++ )
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{
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StringElement *tempElement=element->next;
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delete element;
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element=tempElement;
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////////////
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//How many Elements is it in the LinkedList
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////////////////////////////////////////////////////////////////////////////////////
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int StringLinkedList::size()
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{
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return howfar;
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}
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////////////////////////////////////////////////////////////////////////////////////
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//add a Element to the LinkedList
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////////////////////////////////////////////////////////////////////////////////////
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void StringLinkedList::addLast(String &iString)
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{
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addLastMain(iString.buffer,iString.length);
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}
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void StringLinkedList::addLast(String *iString)
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{
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addLastMain(iString->buffer,iString->length);
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}
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void StringLinkedList::addLast(char *iBuffer)
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{
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StringTools stringTools;
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addLastMain(iBuffer,stringTools.sizeOfStringWithOutEndNull(iBuffer));
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}
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void StringLinkedList::addLastMain(char *iBuffer, int length)
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{
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if (howfar == 0)
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{
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first = new StringElement(iBuffer,length);
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last=first;
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}
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else
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{
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last->next = new StringElement(iBuffer,length);
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last->next->previos=last;
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last=last->next;
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}
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howfar++;
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}
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////////////////////////////////////////////////////////////////////////////////////
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//get a Element from the LinkedList
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////////////////////////////////////////////////////////////////////////////////////
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char *StringLinkedList::getElement(int index)
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{
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if ( index >= 0 && index < howfar)
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{
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StringElement *element=first;
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for ( int s=0; s<index ; s++ )
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{
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element=element->next;
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}
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stringLength=element->length;
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return element->buffer;
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}
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return null;
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}
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////////////////////////////////////////////////////////////////////////////////////
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//set a Element in the LinkedList
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////////////////////////////////////////////////////////////////////////////////////
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void StringLinkedList::setElement( char *iBuffer, int iLength, int index)
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{
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if ( index < howfar && index >= 0)
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{
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StringElement *element=first;
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for ( int s=0; s<index ; s++ )
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{
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element=element->next;
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}
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char *tempBuffer=element->buffer;
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element->createElement(iBuffer,iLength);
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free(tempBuffer);
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}
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}
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////////////////////////////////////////////////////////////////////////////////////
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//sort element in linkedlist
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////////////////////////////////////////////////////////////////////////////////////
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void StringLinkedList::sortLargestOrder()
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{
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StringLinkedListQuickSort::setStatement(1);
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StringLinkedListQuickSort::sortLargestOrder(this,0,howfar-1);
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}
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void StringLinkedList::sortSmallestOrder()
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{
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StringLinkedListQuickSort::setStatement(0);
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StringLinkedListQuickSort::sortSmallestOrder(this,0,howfar-1);
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}
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////////////////////////////////////////////////////////////////////////////////////
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//remove a element from the linkedlist
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////////////////////////////////////////////////////////////////////////////////////
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bool StringLinkedList::removeElement(int index)
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{
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if ( index < howfar && index >= 0)
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{
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int temphowfar=howfar;
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--howfar;
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StringElement *lista = first;
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for ( int w=0; w<index ; w++ )
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{
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lista=lista->next;
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}
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if ( lista == first && temphowfar == 1 )
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{
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delete first;
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return true;
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}
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if ( lista == first && temphowfar != 1 )
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{
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bool s=false;
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if ( lista->next == last )
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{
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s=true;
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}
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StringElement *temp=first->next;
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delete first;
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first=temp;
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if (s == true)
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{
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last=first;
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}
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return true;
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}
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if ( lista == last )
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{
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StringElement *temp=last->previos;
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delete last;
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last=temp;
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return true;
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}
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int t=0;
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if ( lista->next == last && lista->previos == first )
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{
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t=1;
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}
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StringElement *tempnext=lista->previos;
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StringElement *tempprevios=lista->next;
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delete lista;
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tempnext->next=tempprevios;
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tempprevios->previos=tempnext;
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if ( t == 1 )
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{
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first=tempnext;
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last=tempprevios;
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}
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return true;
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}
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return false;
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}
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