Thread: reading an array/string and sorting/ignoring the contents

guys, i have a problem that i want to read a string called

Code:

uncoded[250]

its a hexadecimal string and so contains both chars and ints.

the string is something like :

Code:

RAWSTUFF 000.000 1343442 32523523 DEF457457457457475745HFE 3463436.000

i would want to ignore the words and the 0000.000 but keep everything else. there is other stuff i´d like to ignore but i will figure that out after a kick in the right direction.

p.s. the string is a variable which makes my life harder. however, the stuff i want to ignore remains the same. my attepmts are shown below.

i´d just like to know how to ignore the stuff because i think i can re-arrange myself.

all help appreciated.

my attempts

Code:

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
 
/********************************************************
 * my_strchr -- Finds a character in a string.          *
 *      Duplicate of a standard library function,       *
 *      put here for illustrative purposes              *
 *                                                      *
 * Parameters                                           *
 *      string_ptr -- String to look through.           *
 *      find -- Character to find.                      *
 *                                                      *
 * Returns                                              *
 *      pointer to 1st occurrence of character          *
 *      in string or NULL for error.                    *
 ********************************************************/
char *my_strchr(char * string_ptr, char find)
{
    while (*string_ptr != find) {
 
       /* Check for end */
 
       if (*string_ptr == ' 0')
           return (NULL);       /* not found */
 
        ++string_ptr;
    }
    return (string_ptr);        /* Found */
}
 
int main()
{
    char line[250];      /* The input line */
    char *first_ptr;    /* pointer to the writing*/
    char *last_ptr;     /* pointer to the zeros */
	int *second_ptr;	// pointer to the 0 value

    fgets(line, sizeof(line), stdin);
 
    /* Get rid of trailing newline */
    line[strlen(line)-1] = 'RAWSTUFF';    
	
	    /* Get rid of 0´s */
    line[strlen(line)-1] = '000.00000';  
 
    last_ptr = line;    // writing printed at new line//
 
    first_ptr = my_strchr(line, ' ');      // Find Spaces //
	second_ptr = my_strchr(line, '0');      // Find 0´s //

    /* Check for an error */
    if (first_ptr == NULL) {
        fprintf(stderr,
            "Error: Unable to find space in %s\n", line);
        exit (8);
	if (second_ptr == NULL) {
        fprintf(stderr,
            "Error: Unable to find 0 in %c\n", line);
        exit (8);
    }
 
    *first_ptr = '\0';  // Zero out the slash //
	*second_ptr = '00'; // Zero out the Zeros //
    ++first_ptr;        // move along array //
	++second_ptr;        // move along array //
    printf("First:%s Last:%s\n", first_ptr, last_ptr);
    return (0);
}