[Ghoghnus]

کتابخانه با امکان ورود - ويرايش- حذف -به امانت گرفتن و پس دادن کتاب

کد:

#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<string.h>

//===========================
//===========================
class book
**
friend class library;

private:
    char book_name[11];
    char explain[51];
    char aouther[11];
    char part;

    char user[11];    
    int reserved;

    book *next;

public:
        book();
    void edit();
    void reserv();
    void getback();
}
//---------------------------
    book::book()
    **
    clrscr();

    cout<<"============ add a new book =================="
        <<"\n\nto insert new book ,enter flow informations:"
        <<"\n\nbook name?";
    gets(book_name);
    book_name[10]=NULL;

    cout<<"\naouther name?";
    gets(aouther);
    aouther[10]=NULL;

    cout<<"\nany explain?";
    gets(explain);
    explain[50]=NULL;

    part=book_name[0];

    reserved=0;

    next=NULL;

    cout<<"\n\ninformathions set!";
    getch();
    }
//---------------------------
void book::edit()
    **
cout<<"error ";
    }
//---------------------------
void book::reserv()
    **
    clrscr();
    cout<<"\n=========== reserving book ===================";

    if(reserved==0)
       **
        cout<<"\n\nuser name?";
        gets(user);
        user[11]=NULL;

        reserved=1;
       }

    if(reserved==0)
       **
        cout<<"\n\nsorry! book has been reserved befor"
           <<"by user:";
        puts(user);
       }

    getch();
    }
//---------------------------
void book::getback()
    **
    reserved=0;

    cout<<"\n\nbook got bak.";
    getch();
    }
//===========================
//===========================
class library
**
public:
        library();
    void run_menu();

private:
    book *parts[24];
    void insert(book*);
    void find();
    void search();

}
//---------------------------
    library::library()
    **
    for(int i=0;i<=23;i++)
       parts[i]=NULL;

    }
//---------------------------
void library::run_menu()
    **

    char ch='n';

    while(ch!='4')
       **
        clrscr();

        cout<<"================= LIBRARY =================="
           <<"\n\n1:add a new book."
           <<"\n2:find a book."
           <<"\n3:search a book."
           <<"\n4:exit."
           <<"press numbers:";


        ch=getch();


        if(ch=='1')
          **
           book *n=new book;
           insert(n);
          }
        if(ch=='2')
          **
           find();
          }
        if(ch=='3')
          **
           search();
          }

       }//while
    }
//---------------------------
void library::insert(book *s)
    **
    int d=s->part-97;

    if(parts[d]==NULL)
       **
        parts[d]=s;
       }
    else
       **
        book *p=parts[d],*q;
        while(p!=NULL && strcmp(p->book_name,s->book_name)<0)
          **
           q=p;
           p=p->next;
          }
        q->next=s;
        s->next=p;
       }

    }
//---------------------------
void library::find()
    **
    clrscr();

    cout<<"=========== edit / delete books ============"
        <<"\nenter exact book name:";
    char name[11];
    gets(name);
    name[11]=NULL;
    int d=name[0]-97;

    book *p=parts[d],*q;
    while(p!=NULL && strcmp(p->book_name,name)!=0)
       **
        q=p;
        p=p->next;
       }
    if(p==NULL)
       **
        cout<<"not found!";
       }
    if(p!=NULL)
       **
        cout<<"\n\ndelete it?('d')  or edit?('e')"
           <<"  or reserv?('r')   or getback?('g') :";
        char ch=getch();
        if(ch=='d')
           **
            q->next=p->next;
            delete p;
           }
        if(ch=='e')
           **
            p->edit();
           }
        if(ch=='r')
           **
            p->reserv();
           }
        if(ch=='g')
          **
           p->getback();
          }
       }
    getch();
    }
//---------------------------
void library::search()
    **
    char ch='6';

    while(ch!='4')
       **
        clrscr();
        cout<<"================== SEARCH ===================";
        cout<<"\n\n1:search for name."
           <<"\n2:search for aouther."
           <<"\n3:search for explanations."
           <<"\n4:back to main menu.(press numbers)";

        ch=getch();

        if(ch=='1')
          **
           cout<<"\n\nenter exact name:";
           char name[10];
           gets(name);
           name[11]=NULL;

           int d=name[0]-97;
           book *p=parts[d];
           while(p!=NULL && strcmp(p->book_name,name)!=0)
             **
              p=p->next;
             }
           if(p==NULL)
             **
              cout<<"\nnot founded!";
             }
           else
             **
              cout<<"\n\n";
              cout<<"name:";puts(p->book_name);
              cout<<"aouther:";puts(p->aouther);
              cout<<"explain:";puts(p->explain);
              if(p->reserved==1)
                **
                 cout<<"RESERVED by:";
                 puts(p->user);
                }
              else
                **
                 cout<<"NOT RESERVES";
                }
             }//else
           getch();
          }//1
        if(ch=='2')
          **
           cout<<"\n\nenter exact aouther name:";
           char name[11];
           gets(name);
           name[11]=NULL;
           int f=0;

           for(int i=0;i<=23;i++)
            **
             book *p=parts[i];
             while(p!=NULL)
             **
              if(strcmp(p->aouther,name)==0)
                **
                 f++;
                 cout<<"\n"<<f<<":";
                 cout<<"name:";puts(p->book_name);
                 cout<<"aouthor:";puts(p->aouther);
                 cout<<"explain:";puts(p->explain);
                 if(p->reserved==1)
                    **
                    cout<<"RESERVED BY";
                    puts(p->user);
                    }
                 else
                    **
                    cout<<"NOT RESERVED";
                    }
                }

              p=p->next;
             }//while
            }
           getch();
          }//2
        if(ch=='3')
          **
           cout<<"\n\nenter key(15char):";
           char name[16];
           gets(name);
           name[15]=NULL;
           int f=0;

           for(int i=0;i<=23;i++)
            **
             book *p=parts[i];
             while(p!=NULL)
             **
              char *tokenptr;
              tokenptr=strtok(p->explain," ");
              while(tokenptr!=NULL)
                **
                 if(strcmp(tokenptr,name)==0)
                    **
                    f++;

                    cout<<"\n"<<f<<":";
                    cout<<"name:";puts(p->book_name);
                    cout<<"aouthor:";puts(p->aouther);
                    cout<<"explain:";puts(p->explain);
                    if(p->reserved==1)
                        **
                        cout<<"RESERVED BY";
                        puts(p->user);
                        }
                    else
                        **
                        cout<<"NOT RESERVED";
                        }
                    }
                 tokenptr=strtok(NULL," ");
                }

              p=p->next;
             }//while
            }//for i
           getch();
          }//3

       }

    }
//===========================
//===========================
int main()
    **
    clrscr();

    library l1;
    l1.run_menu();

    return(0);
    }