C语言实现文本编辑器系统

 本文实例为大家分享了C语言实现文本编辑器系统的具体代码，供大家参考，具体内容如下

#include 
#include 
#include 
#include 
#define LEFT 0x4b00  
#define RIGHT 0x4d00 
#define DOWN 0x5000  
#define UP 0x4800   
#define ESC 0x011b  
#define ENTER 0x1c0d 
#define DEL 21248   
#define BACK 3592   
#define CL 29440   
#define CR 29696   
#define Cc 11779   
#define Cv 12054   
#define Cx 11544   
#define F1 15104   
#define F2 15360   
#define F3 15616   
#define F10 17408   
int value,backup,NUM;

typedef struct record
 {
    char ch; 
    int col, line; 
 }record;
record r[500]; 

typedef struct node 
 {
    char ch; 
    struct node *next; 
 }node;


 typedef struct Hnode 
 {
     node *next; 
     struct Hnode *nextl; 
 }Hnode;



void drawmain() 
 {
     int i,j;
     gotoxy(1,1);    
     textbackground(7); 
     textcolor(0);   
     insline();     
     for(i=1;i<=24;i++)
     {
gotoxy(1,1+i);   
cprintf("%c",196); 
gotoxy(80,1+i);
cprintf("%c",196); 
     }
     for(i=1;i<=79;i++)
     {
 gotoxy(1+i,2);   
 cprintf("%c",196); 
 gotoxy(1+i,25);  
 cprintf("%c",196); 
     }
     gotoxy(1,1);  cprintf("%c",196); 
     gotoxy(1,24); cprintf("%c",196); 
     gotoxy(80,1); cprintf("%c",196); 
     gotoxy(80,24); cprintf("%c",196); 
     gotoxy(7,1); cprintf("%c %c File %c %c",179,17,16,179); 
     gotoxy(27,1); cprintf("%c %c Edit %c %c",179,17,16,179); 
     gotoxy(47,1); cprintf("%c %c Help %c %c",179,17,16,179); 
     gotoxy(5,25); 
     textcolor(1);
     cprintf(" Row:1     Col:1");
     gotoxy(68,25);
     cprintf("Version 2.0");
 }



void qview(Hnode *q) 
 {
    void view(Hnode *q); 
    node *p;
    int i;
    window(1,1,80,25); 
    clrscr(); 
    
    do{
p=q->next;  
cprintf("#"); 
while(p!=NULL) 
{
   if(p->ch==13) putch('*'); 
   else
   putch(p->ch); 
   p=p->next; 
}
q=q->nextl; 
printf("n");
     }while(q!=NULL);

    getch();
    clrscr();
    drawmain();
    window(2,2,79,23);
    textbackground(9);
    for(i=0;i<24;i++)
      insline(); 
    window(3,3,78,23);
    textcolor(10);
 }


void view(Hnode *q) 
 {
    node *p; 
    clrscr(); 
    
    do{
p=q->next;
while(p!=NULL&&p->ch>=32&&p->ch<127&&p->ch!=13&&p->ch!=-1) 
{
   putch(p->ch);
   p=p->next; 
}
q=q->nextl; 
if((p->ch==13||p->ch==-1)&&q!=NULL) gotoxy(1,wherey()+1); 
     }while(q!=NULL); 
 }
 
int check(Hnode *Hhead,int m,int n) 
 {
    int i;
    Hnode *q;
    node *p;
    q=Hhead;
    for(i=1;inextl;
    p=q->next;
    for(i=1;inext;
    if(p->ch==13) return -1; 
    if(p->ch>=32&&p->ch<127) return p->ch; 
    else return 0; 
 }


int judge(Hnode *Hhead,int m) 
 {
    Hnode *q;
    node *p;
    int i,num=0;
    q=Hhead;
    for(i=1;inextl;

    if(q==NULL) return -1; 
    p=q->next;
    while(p->next!=NULL)
    {
 p=p->next;
 num++;    
    }
    
    if(p->ch==13&&num==0) return 0;  
    if(p->ch>=32&&p->ch<127) return num+1; 
    if(p->ch==13&&num!=0) return num; 
    else return 1;
 }




 int del(Hnode *Hhead,int m,int n) 
 {
    Hnode *q,*q1;
    node *p1,*p2,*tail;
    int i,num=0,j,flag=0;
    q=Hhead;
    if(n==0&&m==1) return; 
    if(n==0&&m>1) 
     {
 n=76;
 m=m-1;
 gotoxy(n,m);
 flag=1; 
     }

    for(i=1;inextl;
    p1=q->next;

    for(i=1;inext;
    p2=p1->next; 

if(n==1) 
 {
   q->next=p1->next;
   free(p1);
 }
 else
 {
   p1->next=p2->next; 
   free(p2);
 }

 
  while((num=judge(Hhead,m++))>0) 
 {
      p1=q->next; q1=q;
      if(p1!=NULL) 
     {
  while(p1->next!=NULL)
    p1=p1->next;
  tail=p1;
  q=q->nextl; 
  p1=p2=q->next;
  tail->next=p1; 
      }
      else 
      {
   q=q->nextl;  p1=p2=q->next;
   q1->next=p1;
      }

      for(i=0;i<76-num;i++)
      
     {
  p1=p2; 
  p2=p2->next;
  if(p2->ch==13) break; 
      }
      q->next=p2;  
      p1->next=NULL;
 }
      return flag; 
 }

 
 int test(Hnode *Hhead,int n)
 {
    int i=0,num1=1;
    node *p1,*p2,*tail,*temp1,*temp2;
    Hnode *q;
    q=Hhead;
    for(i=1;inextl;
    tail=p1=q->next;
    if(p1==NULL) return; 
    while(tail->next!=NULL) 
      tail=tail->next;

    
    for(i=0;i<75;i++)
   {
if(p1->ch==13||p1->next==NULL) break;
p1=p1->next;
   }

    p2=p1->next;
    p1->next=NULL; 
    if(tail->ch!=13) 
   {
if(p1->ch==13&&q->nextl==NULL)
      {
     q->nextl=(Hnode *)malloc(sizeof(Hnode)); 
     q->nextl->nextl=NULL;
     tail->next=(node *)malloc(sizeof(node));
     tail->next->ch=13;  tail->next->next=NULL;
     q->nextl->next=p2; 
}
else 
      {
   q=q->nextl;
   tail->next=q->next;
   q->next=p2;
   if(q!=NULL) test(Hhead,++n); 
      }

   }
    else 
   {
      temp2=p2; 
      while(q!=NULL&&p2!=NULL) 
{ 
  if((q->nextl==NULL)&&(p1!=tail||p2!=NULL)&&(num1==1))
 {
     num1++;
     q->nextl=(Hnode *)malloc(sizeof(Hnode)); 
     q->nextl->nextl=NULL;  q->nextl->next=NULL; 

 }
 
  q=q->nextl; 
  temp1=q->next;
  q->next=temp2; 
  temp2=temp1;
      }
   }
 }

void insert(Hnode *Hhead,int m,int n, char a) 
 {
    int i;
    Hnode *q;
    node *p,*p1,*p2;
    q=Hhead;
    for(i=1;inextl;
    p1=q->next;
    for(i=1;inext;
    p=(node *)malloc(sizeof(node)); 
    p->ch=a; 
    if(n==1) 
    {
 p->next=q->next;
 q->next=p;
    }
    else
    {
  p->next=p1->next; 
  p1->next=p;
    }
  test(Hhead,m); 

 }


void control(int A, Hnode *Hhead)
  {
      void colorview(Hnode *,int,int); 
      int x,y,flag=0;
      x=wherex();  y=wherey(); 
      if((A==CL)&&(x!=1)) 
 gotoxy(wherex()-1,wherey());

      if((A==CL)&&(x==1)) 
 gotoxy(abs(judge(Hhead,wherey()-1)),wherey()-1); 

      if((A==CR)&&check(Hhead,wherey(),wherex())>0) 
     {  flag=1; gotoxy(wherex()+1,wherey()); }

      if((A==CR)&&check(Hhead,wherey()+1,1)>0&&check(Hhead,y,x)==0) 
     {  flag=1; gotoxy(1,wherey()+1); }

      if((A==CR)&&x==76) 
     {  flag=1;   gotoxy(1,wherey()+1); }

      if(A==CR&&flag==1) 
     {
r[abs(value)].col=wherex();
r[abs(value)].line=wherey();
r[abs(value)].ch=check(Hhead,r[abs(value)].line,r[abs(value)].col);
if(r[abs(value)].ch==-1)  r[abs(value)].ch=13; 
value--;

     }

      if(A==CL&&(x!=1||y!=1))  
     {

r[abs(value)].col=wherex();
r[abs(value)].line=wherey();
r[abs(value)].ch=check(Hhead,r[abs(value)].line,r[abs(value)].col);
value++;
     }

      colorview(Hhead,wherex(),wherey());

 }


void colorview(Hnode *Hhead,int x,int y)
 {

      int i;
      view(Hhead);
      for(i=0;iopen file error!n");
 getchar();
 return ;
}
    do{
      p=q->next; 
      while(p!=NULL)
{   if((int)p->ch==13)
   {
    fputc('n',fp);p=p->next; count++;
    }
   else
   {fputc(p->ch, fp);
    p=p->next;
    count++;}
}
      q=q->nextl;
     }while(q!=NULL);

fclose(fp); 
return ;
}


void saveas(Hnode *head)
{
FILE* fp;
Hnode *q;
node *p;
int count=0,x,y;
char filename[10]; 
q=head;
clrscr();
printf("Enter infile name,for example [c:\wb.txt]:");
scanf("%s",filename); 
fp=fopen(filename,"w");
if(fp==NULL) 
{
 printf("n=====>open file error!n");
 getchar();
 return ;
}
    do{
      p=q->next; 
      while(p!=NULL)
{    if((int)p->ch==13)
   {
    fputc('n',fp);p=p->next; count++;
    }
   else
   {fputc(p->ch, fp);
    p=p->next;
    count++;}

}
      q=q->nextl;
     }while(q!=NULL);

fclose(fp); 
return ;
}


void opens(Hnode *Hp)
{
FILE* fp;
Hnode *q11,*q22;
node *p11,*p22,*hp;
char temp;
int count=0,flags=1;
char filename[10]; 
clrscr();
printf("Enter infile name,for example [c:\wb.txt]:");
scanf("%s",filename); 
fp=fopen(filename,"r");
if(fp==NULL)
{ textbackground(2);
  textcolor(13);
  cprintf("open file error!");
  getchar();
  exit(0) ;
}
q11=Hp;
while(!feof(fp))
{  count=0;flags=1;
  q22=(Hnode *)malloc(sizeof(Hnode));
  p11=(node *)malloc(sizeof(node)); 
  while((temp=fgetc(fp))!=10&&count<=76&&!feof(fp)) 
  { p22=(node *)malloc(sizeof(node));
    if(flags==1) {hp=p22;flags=0;} 
    p22->ch=temp; p22->next=NULL;
    p11->next=p22; p11=p22;
    count++;
  }
  if(temp==10){ 
    p22=(node *)malloc(sizeof(node));p22->ch=13; p22->next=NULL;
    p11->next=p22; p11=p22;
  }
  if(!feof(fp))
  {q22->next=hp;q22->nextl=NULL; 
   q11->nextl=q22;q11=q22;}
}
fclose(fp);
Hp=Hp->nextl;
return ;
}


void main()
 {
     char a;
     int i,A,x,y,flag=0,b;
     Hnode *Hhead,*q;
     node *p1,*p2;
     Hhead=(Hnode *)malloc(sizeof(Hnode)); 
     q=Hhead;   Hhead->nextl=NULL;
     p1=p2=q->next=(node *)malloc(sizeof(node)); 
     p1->ch=13; p1->next=NULL;
     drawmain();   
     window(2,2,79,23);
     textbackground(9);
     for(i=0;i<24;i++)
 insline();
     window(3,3,78,23);
     textcolor(10);

     while(1)
     {
 while(bioskey(1)==0) continue; 
 a=A=bioskey(0); 
 if(a>=32&&a<127) 
 {

    if(check(Hhead,wherey(),wherex())<=0)
   {
NUM++;
p2->ch=a;
putch(a);
if(NUM==76) 
{
  p2->next=NULL;
  q->nextl=(Hnode *)malloc(sizeof(Hnode));
  q=q->nextl;  q->nextl=NULL; q->next=NULL;
  p1=p2=q->next=(node *)malloc(sizeof(node));
  p1->ch=13; p1->next=NULL;
  NUM=0;
}
else 
{
   p2->next=(node *)malloc(sizeof(node));
   p2=p2->next;
   p2->ch=13;
   p2->next=NULL;

}
    }

    else 
    {
 x=wherex(); y=wherey();
 insert(Hhead,wherey(),wherex(),a);
 NUM++;
 view(Hhead);
 gotoxy(x,y);
    }


 }

 
 if(a==13)
 {
     gotoxy(1,wherey()+1);
     q->nextl=(Hnode *)malloc(sizeof(Hnode));
     q=q->nextl;  q->nextl=NULL;  q->next=NULL;
     p1=p2=q->next=(node *)malloc(sizeof(node));
     p1->ch=13; p1->next=NULL;
     NUM=0;
 }

  x=wherex();  y=wherey();
 
 if((A==LEFT)&&(x!=1)) gotoxy(wherex()-1,wherey());
 
 if((A==LEFT)&&(x==1)) gotoxy(abs(judge(Hhead,wherey()-1)),wherey()-1);
 
 if((A==RIGHT)&&check(Hhead,wherey(),wherex())>0) gotoxy(wherex()+1,wherey());
 
 if((A==RIGHT)&&check(Hhead,wherey()+1,1)!=0&&check(Hhead,y,x)<=0) gotoxy(1,wherey()+1);
  
 if((A==RIGHT)&&x==76)  gotoxy(1,wherey()+1);
  
 if((A==UP)&&check(Hhead,wherey()-1,wherex())!=0) gotoxy(wherex(),wherey()-1);
  
 if((A==UP)&&check(Hhead,wherey()-1,wherex())<=0)
 {
   if(judge(Hhead,wherey()-1)==0)
     gotoxy(-judge(Hhead,wherey()-1)+1,wherey()-1);
   else
     gotoxy(-judge(Hhead,wherey()-1),wherey()-1);
 }

 
 if((A==DOWN)&&check(Hhead,wherey()+1,wherex())!=0)
   gotoxy(wherex(),wherey()+1);

 
 if(A==BACK) 
 {
     flag=del(Hhead,wherey(),wherex()-1);
     x=wherex()-1;  y=wherey();
     view(Hhead);
     if(flag==0)
    {
if(x!=0) gotoxy(x,y);
else gotoxy(x+1,y);
    }
     if(flag==1)
    {
gotoxy(x+1,y);
flag=0;
    }
 }
 
 if((A==F1)||(A==F2)||(A==F3)||(a<32||a>127))
 {  A=menuctrl(Hhead,A);
  if(A==100){main();} 

  if(A==101){ 
   Hhead=(Hnode *)malloc(sizeof(Hnode));
   opens(Hhead);
   getchar();clrscr();gotoxy(3,3);view(Hhead);
   }
 
  if(A==102){save(Hhead);clrscr();cprintf("save successfully!");getch();gotoxy(3,3);view(Hhead);}
 
  if(A==103){saveas(Hhead);clrscr();cprintf("save as successfully!");getch();gotoxy(3,3);view(Hhead);}
 
  if(A==120){clrscr();cprintf(" F1:File F2:Edit F3:Help ");
getch();gotoxy(3,3);view(Hhead);}
  if(A==121){clrscr();cprintf("Abort:Version 2.0 Tel:XXXXXXXXXX");getch();gotoxy(3,3);view(Hhead);}
 }

 
 if(A==DEL)
 {
    x=wherex();  y=wherey();
    del(Hhead,wherey(),wherex());
    view(Hhead);
    gotoxy(x,y);
 }
 
 if(A==DEL&&value!=0)
 {
    if(value>0)
x=wherex(),  y=wherey();
    else
x=r[0].col, y=r[0].line;
    for(i=0;i0)
 del(Hhead,r[i].line,r[i].col);
if(value<0)
 del(Hhead,r[abs(value)-1-i].line,r[abs(value)-1-i].col);
    }
    value=0; 
    view(Hhead);
    gotoxy(x,y);
 }

if(A==Cx&&value!=0)
 {
    if(value>0)
x=wherex(),  y=wherey();
    else
x=r[0].col, y=r[i].line;
    for(i=0;i0)
 del(Hhead,r[i].line,r[i].col);
if(value<0)
 del(Hhead,r[abs(value)-1-i].line,r[abs(value)-1-i].col);
    }
backup=value; 
value=0; 
view(Hhead);
gotoxy(x,y);
 }

 
 if(A==Cc&&value!=0)
 {
    x=wherex();   y=wherey();
    backup=value;  value=0; 
    view(Hhead);
    gotoxy(x,y);
 }

 
 if(A==Cv&&backup!=0)
 {
    x=wherex();  y=wherey();
    if(backup<0) 
for(i=0;i0) 
for(i=0;i

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。