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#include<iostream>
#include<fstream>
#include<cstring>
using namespace std;
string ConvertName(string &name, bool ToSpace)
{ if(ToSpace)
{ for(int i=0;name[i]!='\0';i++)
{ if(name[i]=='&')
{ name[i]=' ';
}
}
}
else
{ for(int i=0;name[i]!='\0';i++)
{ if(isspace(name[i]))
{ name[i]='&';
}
}
}
return name;
}
string s_title;
int s_size;
class File
{
public:
string name;
int size;
ofstream out;
void PrintSize()
{ cout<<name<<"'s size is "<<size<<" kb"<<endl;
}
void SaveFile()
{
out<<s_title<<endl;
out<<s_size<<endl;
}
File();
File(string name, int size);
File *nxt, *bfr;
};
File *HEAD = NULL, *TAIL = NULL, *temp;
File::File(string n,int s)
{ name = n;
size = s;
nxt = NULL;
bfr = NULL;
}
void AddFileToHead(File *fail)
{ if(TAIL==NULL)
TAIL = fail;
if(HEAD!=NULL)
{ fail->nxt = HEAD;
HEAD->bfr = fail;
}
HEAD = fail;
}
void AddFileToTail(File *fail)
{ if(HEAD==NULL)
HEAD = fail;
if(TAIL!=NULL)
{ TAIL->nxt = fail;
fail->bfr = TAIL;
}
TAIL = fail;
}
void AddFileToMiddle(File *fail)
{ int x = 0;
cout<<"Select which position of file to add: "; cin>>x;
File *temp = HEAD;
if(x==1 || temp==NULL)
{ return AddFileToHead(fail);
}
else
{ for(int i=1; temp!=NULL; i++, temp=temp->nxt)
{ if(i==x)
{ fail->nxt = temp;
fail->bfr = temp->bfr;
fail->bfr->nxt = fail;
temp->bfr = fail;
return;
}
}
return AddFileToTail(fail);
}
}
void PrintFileList()
{ File *temp = HEAD;
int x=1;
while(temp!=NULL)
{ cout<<x<<". "; x++;
temp->PrintSize();
temp = temp->nxt;
}
}
File *loadFile()
{
File *add=NULL;
ifstream load;
load.open("File.txt");
string n;
int s;
while(true)
{
load>>n;
load>>s;
if(n=="#break#")
break;
add=new File(ConvertName(n,true),s); AddFileToTail(add);
}
load.close();
return add;
}
int main()
{
File *fail;
loadFile();
int x = 0; char y = 'n';
ofstream out;
while(true)
{ system("cls");
PrintFileList();
cout<<endl<<"Add a file? (y/n): "; cin>>y;
if(y=='y'||y=='Y')
{ string n; int s,b;
cout<<"input file name "; fflush(stdin);cin>>n;
cout<<"input file size "; fflush(stdin);cin>>s;
fail = new File(n,s);
cout<<endl<<endl<<"Do you wish to: "<<endl;
cout<<"(1) Add a file to the first of list"<<endl;
cout<<"(2) Add a file to the end of the list"<<endl;
cout<<"(3) Add a file to the middle of the list"<<endl;
fflush(stdin);cin>>b;
if(b==1)
AddFileToHead(fail);
else if(b==2)
AddFileToTail(fail);
else
AddFileToMiddle(fail);
system("cls");
PrintFileList();
}
else
break;
}
while(true)
{ system("cls");
PrintFileList();
cout<<endl<<"Delete a file? (y/n): "; cin>>y;
if(y=='y'||y=='Y')
{ cout<<"Select which file to delete: "; cin>>x;
File *temp = HEAD;
if(x==1)
{ HEAD = HEAD->nxt;
HEAD->bfr = NULL;
delete temp;
}
else
{ for(int i=1; temp!=NULL; i++, temp=temp->nxt)
{ if(i==x)
{ temp->bfr->nxt = temp->nxt;
if(temp!=TAIL)
{ temp->nxt->bfr = temp->bfr;
}
else
{ TAIL = temp->bfr;
}
}
}
}
}
else
break;
}
cout<<endl<<"~end~"<<endl<<endl;
system("pause");
return 0;
}
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