answer if u can

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answer if u can

 
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  #1
Jul 19th, 2008
/* I need some advice on program bellow,this program is text program
in this program by pressing arrow key you can change your position
in the text and by enter key you can break a line and move the rest of the
line to a new line but this program dosen`t work properly.*/
C Syntax (Toggle Plain Text) 
  1. #include<stdio.h>
  2. #include<conio.h>
  3. #include<ctype.h>
  4. void pos(char);
  5. void text();
  6. int i, j,k,x=0,y=0,s=0;
  7. char txt[41][79],st[79],ch;
  8. int main()
  9. {
  10. clrscr();
  11. for(j=0;j<41;j++)
  12.  for(i=0;i<79;)
  13.  txt[j][i]=32;
  14.  
  15. text();
  16. return 0;
  17. }
  18. //******************************************((functions))********************************
  19. void text(){
  20.  
  21. for(j=0;j<41;j++){
  22.  for(i=0;i<79;){
  23.  ch=getch();
  24.  if(isalpha(ch) || isdigit(ch)|| ch==32){
  25. x++;
  26. i++;
  27.  txt[j][i]=ch;
  28.  putch(ch);
  29.  }else
  30.  if (ch==13||ch==0){
  31.  pos(ch);
  32.  }else
  33.  if (ch=='=')
  34.  goto last;
  35.  }//end of for
  36.  y++;
  37.  }//end of outer for
  38.  last:
  39. }
  40. //****************************
  41. void pos(char ch){
  42. if(ch==13){
  43.  
  44. for( int k=i;k<=76;k++,s++)
  45. st[s]=txt[j][k];
  46. y++;
  47. x=0;
  48. printf("\n");
  49. puts(st);
  50. for( int t=j;t<41;t++){
  51.  for(int i=0;i<=78;i++){
  52. putch(txt[t][i]);
  53. }
  54. printf("\n");
  55. }
  56. }//end of enter
  57.  
  58.  if(ch==0){
  59.     ch=getch();
  60.  
  61.      if(ch==72){
  62.        y=y-1;
  63.        gotoxy(x,y);
  64.        }
  65.     else if(ch==80){
  66.        y=y+1;
  67.        gotoxy(x, y);
  68.        }
  69.     else if(ch==75){
  70.        x=x-1;
  71.        gotoxy(x,y);
  72.        }
  73.     else if(ch==77){
  74.        x=x+1;
  75.        gotoxy(x,y);     
  76.        }
  77.  }
  78.  }
  79. //***********************************
Last edited by Narue; Jul 19th, 2008 at 10:30 am. Reason: Code tags -- removed email
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Re: answer if u can

 
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  #2
Jul 19th, 2008
http://www.catb.org/~esr/faqs/smart-...tml#bespecific

And
http://www.catb.org/~esr/faqs/smart-...html#noprivate

Perhaps you could work on the indentation to being with. It might help you follow the code flow.
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Re: answer if u can

 
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  #3
Jul 22nd, 2008
What are you forgetting here?
C Syntax (Toggle Plain Text) 
  1. for(j=0;j<41;j++)
  2.  for(i=0;i<79;)
  3.  txt[j][i]=32;
Hint: it's an infinite loop . . . .

[edit] And it's a lot easier to use character constants like ' ' and '\r' in your code instead of magic numbers like 32 and 13, don't you think? [/edit]
dwk

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"Only those who will risk going too far can possibly find out how far one can go."
-- TS Eliot.

"I have not failed. I've just found 10,000 ways that won't work."
-- Thomas Alva Edison

"The only real mistake is the one from which we learn nothing."
-- John Powell
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Re: answer if u can

 
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  #4
Jul 23rd, 2008
Well, I should say that, I don’t even understand on what your are trying to do here. You will have to give some more information. And your code i just such a lot of mess. You are using stuff which you shouldn't be. Few which i pointed out.

1. Using a very old compiler
2. for(i=0;i<79;) --> why are you not incr i ( include i++)
3. goto <-- dont you know that these statement shouldn't be used. Its a bad programming practice.
4. gotoxy is not a standard C function
5. and clrscr getch !
6. Code indentation is horrible. But I thought this time I will do it for you

”C” Syntax (Toggle Plain Text) 
  1. #include<stdio.h>
  2. #include<conio.h>
  3. #include<ctype.h>
  4.  
  5. void pos(char);
  6. void text();
  7.  
  8. int i, j,k,x=0,y=0,s=0;
  9. char txt[41][79],st[79],ch;
  10.  
  11. int main()
  12. {
  13.     clrscr();
  14.  
  15.     for(j=0;j<41;j++)
  16.       for(i=0;i<79;)
  17.          txt[j][i]=32;
  18.  
  19.     text();
  20.     return 0;
  21. }
  22.  
  23. void text()
  24. {
  25.      for(j=0;j<41;j++)
  26.      {
  27.         for(i=0;i<79;)
  28.         {
  29.            ch=getch();
  30.  
  31.            if(isalpha(ch) || isdigit(ch)|| ch==32)
  32.            {
  33.               x++;
  34.               i++;
  35.               txt[j][i]=ch;
  36.               putch(ch);
  37.            }
  38.            else
  39.                if (ch==13||ch==0)
  40.                {
  41.                   pos(ch);
  42.                }
  43.                else
  44.                    if (ch=='=')
  45.                       goto last;
  46.         }//end of for
  47.         y++;
  48.      }//end of outer for
  49.  last:
  50. }
  51.  
  52. void pos(char ch)
  53. {
  54.    if(ch==13)
  55.    {
  56.        for( int k=i;k<=76;k++,s++)
  57.             st[s]=txt[j][k];
  58.        y++;
  59.        x=0;
  60.        printf("\n");
  61.        puts(st);
  62.  
  63.        for( int t=j;t<41;t++)
  64.        {
  65.           for(int i=0;i<=78;i++)
  66.           {
  67.              putch(txt[t][i]);
  68.           }
  69.           printf("\n");
  70.        }
  71.    }//end of enter
  72.  
  73.      if(ch==0)
  74.      {
  75.         ch=getch();
  76.  
  77.          if(ch==72)
  78.          {
  79.            y=y-1;
  80.            gotoxy(x,y);
  81.          }
  82.          else if(ch==80)
  83.          {
  84.            y=y+1;
  85.            gotoxy(x, y);
  86.          }
  87.          else if(ch==75)
  88.          {
  89.            x=x-1;
  90.            gotoxy(x,y);
  91.          }
  92.          else if(ch==77)
  93.          {
  94.            x=x+1;
  95.            gotoxy(x,y);     
  96.          }
  97.      }
  98. }

ssharish
Last edited by ssharish2005; Jul 23rd, 2008 at 11:54 pm.
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