#include #include #include using namespace std;class book{ public: string author; string publisher; string title; int year; string isbn; book* next; book(string, string, string, int, string, book*);};book::book(string tempTitle, string tempAuthor, string tempPublisher, int tempYear, string tempIsbn, book* tempNext){ title=tempTitle; author=tempAuthor; publisher=tempPublisher; year=tempYear; isbn=tempIsbn; next=tempNext;}typedef book* bookPtr;void getline(istream &stream, string &str, char delimiter){ char temp500; stream.get(temp, 500, delimiter); stream.ignore(500, delimiter); str = temp;}void getline(istream &stream, int &num, char delimiter){ int temp; stream >> temp; stream.ignore(500, delimiter); num= temp;}void insert (bookPtr &root);void delTitle(bookPtr &root);void readFile(bookPtr &root);bookPtr locateNode(bookPtr temp, string titl);void delIsbn(bookPtr &root);bookPtr locateNodeIsbn(bookPtr temp, string isb);void printAuthor(bookPtr temp);void searchIsbn(bookPtr temp);void saveFile(bookPtr temp);void printList(bookPtr temp);int countNodes(bookPtr temp);void readFile(bookPtr &root){ int numBooks, yea; string titl, aut, pub, isb; ifstream infile (“books.txt”, ios::in); infile >> numBooks; infile.ignore(500,”); for (int count = 0; count < numBooks; count++) { getline(infile, titl, ''); getline(infile, aut, ''); getline(infile, pub, ''); getline(infile,yea, ''); getline(infile, isb, ''); root = new book (titl, aut, pub, yea, isb, root); }}void insert (bookPtr &root){ string titl, aut, pub, isb; int yea; cout<<"Title: "; cin.ignore(500,''); getline(cin, titl, ''); cout<<"Author: "; getline(cin, aut, ''); cout<<"Publisher: "; getline(cin,pub, ''); cout<<"Year: "; getline(cin,yea, ''); cout<<"ISBN: "; getline(cin, isb, ''); root = new book (titl, aut, pub, yea, isb, root);}void delTitle(bookPtr &root){ string titl; cout << "Book Title: "; cin.ignore(500,''); getline(cin, titl, ''); bookPtr p = locateNode(root, titl); if (p == NULL) cout << "Deletion cannot be done."; else if (root == p) root = p->next; else { bookPtr q = root; while (q->next != p) q = q->next; q->next = p->next; } delete p;}bookPtr locateNode(bookPtr temp, string titl){ while (temp != NULL) { if (temp->title == titl) { return temp; } temp=temp->next; } return NULL;}void delIsbn(bookPtr &root){ string isb; cout<<"Book ISBN: "; cin.ignore(500,''); getline(cin, isb, ''); bookPtr p = locateNodeIsbn(root, isb); if (p == NULL) cout << "Deletion cannot be done."; else if (root == p) root = p->next; else { bookPtr q = root; while (q->next != p) q = q->next; q->next = p->next; } delete p;}bookPtr locateNodeIsbn(bookPtr temp, string isb){ while (temp != NULL) { if (temp->isbn == isb) { return temp; } temp = temp->next; } return NULL;}void searchIsbn(bookPtr temp){ string isb; cout << "Book ISBN: "; cin.ignore(500,''); getline(cin, isb, ''); while (temp != NULL) { if (isb == temp->isbn) { cout<title << endl; cout<author << endl; cout<publisher << endl; cout<year << endl; cout<isbn << ""; } temp=temp->next; } cout<title << endl; cout<author << endl; cout<publisher << endl; cout<year << endl; cout<isbn << ""; temp=temp->next; } cout << "";}void printAuthor(bookPtr temp){ string aut; cout << "Author name: "; cin.ignore(500,''); getline(cin, aut, ''); while (temp != NULL) { if (temp->author == aut) { cout<title << endl; cout<author << endl; cout<publisher << endl; cout<year << endl; cout<isbn << endl; } temp=temp->next; } cout<title << endl; outFile<author << endl; outFile<publisher << endl; outFile<year << endl; outFile<isbn << endl; temp=temp->next; } cout<next; } return countB;}int main(){ int choice; bookPtr root = NULL; readFile(root); do { cout<<" PROJECT ON (L M S) "; cout<<" MENUChoose your likely option !"<>choice; if (1 <= choice && choice <= 6) { switch (choice) { case 1: insert(root); break; case 2: delTitle(root); break; case 3: delIsbn(root); break; case 4: searchIsbn(root); break; case 5: printList(root); break; case 6: printAuthor(root); break; default: cout<<"Invalid selection so enter again."; break; } } } while (choice!=7); saveFile(root); return 0;}
