fscanf - easy

Thanks,  but I ment: I want to have an input file of this form:
1$zfzdf
2$aadad
;ert
3$azdfadad
;4$44
5$6
6$azd
and I don't want to "convert" a file from the first form to the second...
(sorry, English isn't my native tongue).

So, I just need to adapt this piece of code:
--------
int dd;
char aaa[100];
while (!feof(Fp)) {

fscanf (Fp, "%d$%s",&dd, aaa);
if(dd!=0){printf("%d\t%s\n",dd,aaa);}

Sleep(200);
}
-------
so that it reads the file, and only displays the lines that aren't comment.
(like in the first example)


Thanks all.

a good way should be...

while(!feof(fp)) {

fgets(str,255,fp);
if (!(str[0]=='0' && str[1]=='$'))
    printf("%s",str);

}

hope that helps.

regards,
cryptosid

thanks, cryptosid, but the problem is that I need to have the number which is in the line (just before the $-sign).

I know it's possible with atoi to convert the first part of the string to a number, but I don't really like to use atoi ....

So, to make thing clear,
1$zfzdf
2$aadad
;ert
3$azdfadad
;4$44
5$6
6$azd

should display:
1...zfzdf
2...aadad
3...azdfadad
5...6
6...azd

where the ... is allways a tab (tabs dissapear when I post them here on the forum.

Thanks a lot.

adapted from crypto:
fgets(str,255,fp);
if (!(str[0]=='0' && str[1]=='$'))
    printf("%c\t%s",str[0], str+2);
}

jaydutt

Sorry I'm that anoying, but I want to display those numbers indeed (that part is OK); but there are two more "problems" :

1/ the numbers can go till 1000 (-> it's not allways the first char only); that was the reason why I thought I should use fscanf (because then you get this automaticly)
2/ I need the numbers to be available as number (int) allso (and, if possible, I prefer not to use atoi [ if there is no other solution, I guess I'll have to use it...] )


Thanks for all your help all; and sorry I didn't described the problem good enough in my question .

There IS a return code to fscanf. It is the number of formats satisfied (or, on some systems, the number of variables filles. You code may be better like this:

int dd;
char aaa[100];
while ( fscanf (Fp, " %d$%s\n",&dd, aaa) >= 1 )
{
if(dd!=0){printf("%d\t%s\n",dd,aaa);}
}

Sleep(200);

much better, paul.

thanks a lot PaulCaswell, I'll try it monday (I don't have a compiler installed on my computer at home).
but are you sure that :

1$zfzdf
2$aadad
;ert
3$azdfadad
;4$44
5$6
6$azd

displays:

1...zfzdf
2...aadad
3...azdfadad
5...6
6...azd

because it seems to me that it only displays
1...zfzdf
2...aadad
3...azdfadad
5...6
6...azd

for

1$zfzdf
2$aadad
0$ert
3$azdfadad
0$4$44
5$6
6$azd


and, as you could read some posts above, this wasn't what I needed...

>>but are you sure that ...
No! The return value of fscanf can be a bit odd on some systems. It MIGHT work! If it does it will be a neat solution. Try it.

Paul

char TheLine[1000];
int p;

   fscanf( Fp, "%s\n", TheLine );

if( TheLine[0] == ';' ) {  // ignore it
}
else
{
   p = 0;
   while( isdigit( theLine[p] ) p++;
  TheLine[p] = '\t';
   printf( "%s\n", TheLine );
}

I think following code is sufficent for you.

#include <stdio.h>
int main()
{
     char caTheLine[100],caContent[100];
     int nId;
     FILE *Fp;

     if((Fp = fopen("in.txt","r")) == NULL)
     {
          printf("Error unable to open input file");
          return 1;
     }

     while(!feof(Fp))
     {
          if(fgets(caTheLine,100,Fp) == NULL) break;
          if( caTheLine[0] == ';' ) continue;
          sscanf(caTheLine,"%d$%s",&nId,caContent);
          printf("%d\t%s\n",nId,caContent);
     }
     return 0;
}
-Mahesh

thanks all.

I'll give allso some points to sunnycoder and cryptosid and brettmjohnson because it was my fault I misformulated my qyestion.