Thread: f-scanf ? sscanf ? your help needed.

i try to read and store into vars in C language each field one file but without success.
The fields are all separated by ':'.
Here's my code :

Code:

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

    /*file format
    nom1:PATRICK DUCHMOL:S:2:4:3:30:0
    nom2:HERVE DUCHMOL DE LA POTEE::1:9:6:20:9
    */
    int main()
    {
    FILE * fd  = NULL ;
    char chaine [200];
    char flag [5];
    char nom[50];
    char s[2] ;
    int st1 ;
    int st2 ;
    int st3 ;
    int po ;
    int ti ;

    if((fd=fopen("./file.txt", "r"))==NULL) {
    printf("Error\n") ;
    }

    while(!feof(fd)) {

    if(fscanf(fd, "%s:%[^:]:%s:%d:%d:%d:%d:%d", flag, nom, s, &st1, &st2, &st3, &po, &ti) != 8)
    printf("%s\n", nom) ;
    else
    fprintf(stderr, "Format error.\n") ;
    }

    fclose(fd) ;

    }

Thanks for help.

Hi, thanks for the suggest, this does not work more

Code:

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

    /*file format
    nom1:PATRICK DUCHMOL:S:2:4:3:30:0
    nom2:HERVE DUCHMOL DE LA POTEE::1:9:6:20:9
    */
    int main()
    {
    FILE * fd  = NULL ;
    char chaine [200];
    char flag [5];
    char nom[50];
    char s[2] ;
    int st1 ;
    int st2 ;
    int st3 ;
    int po ;
    int ti ;

    if((fd=fopen("./file.txt", "r"))==NULL) {
    printf("Error\n") ;
    	
}

char buff[BUFSIZ];
while ( fgets(buff,BUFSIZ,fd) != NULL ) {
	 printf("%s",buff);
  if ( sscanf(buff, "%s:%[^:]:%s:%d:%d:%d:%d:%d", flag, nom, s, &st1, &st2, &st3, &po, &ti) == 8) {
    printf("%s",nom);
  }
}

    }

Perhaps you should try printing out the value sscanf() is returning? It appears to me that your sscanf() is not actually processing the string correctly.

Look closely at your input lines, they don't have any spaces embedded within them which means that the first "%s" specifier is retrieving the entire string. Remember that the "%s" specifier stops processing at whitespace characters, since your string has no whitespace until the "newline" character the "%s" specifier will retrieve the whole string.

I've changed the format of the file and uses sscanf. It works now. Tx.