util converter

#include <stdio.h>
#include <stdlib.h>
#include "util_converter.h"
#include "csv_converter.h"
#include "hulke.h"


void open_file(fp_ptr, filename, header)
FILE** fp_ptr;
const char* filename,
                  * header;
{
        if(IS_NOT_NULL(*fp_ptr = fopen(filename, "w"))) {
                fprintf(*fp_ptr,"%s\n",header);
        } else {
                printf("Erro ao abrir o arquivo: \"%s\"\n", filename);
                exit(1);
        }
}

static int split(string, new_string, delimiter)
char* string,
        * new_string;
const char* delimiter;
{

        register int i = 0;
        static char* last_string;

        if(IS_NULL(string))
                if(IS_NOT_NULL(last_string))
                        string = last_string;

        while(IS_NOT_NUL(*string)) {

                while(*string != *delimiter && IS_NOT_NUL(*string))
                        *new_string++ = *string++;

                while(string[i] == delimiter[i] && IS_NOT_NUL(string[i]) && IS_NOT_NUL(delimiter[i]))
                        i++;

                if(IS_NUL(string[i]) || IS_NUL(delimiter[i])) {

                        if(IS_NUL(string[i]))
                                last_string = NULL;
                        else
                                last_string = string + i;

                        *new_string = NUL;
                        return TRUE;

                } else

                        while(i) {
                                *new_string++ = *string++;
                                i--;
                        }

        }

        return FALSE;

}

#define QUESTION_SEPARATOR " - "
#define TEACHER_SEPARATOR "/ "
#define DISCIPLINE_SEPARATOR ""

int extract_question_teacher_discipline(string_to_extract, string_question, string_teacher, string_discipline)
char* string_to_extract,
        * string_question,
        * string_teacher,
        * string_discipline;
{

        if(IS_NULL(string_to_extract)) {
                return FALSE;

        }
//printf("%s -> %d\n", string_to_extract, csvc_record.length);

        if( split(string_to_extract, string_question, QUESTION_SEPARATOR) &&
                split(NULL, string_teacher, TEACHER_SEPARATOR) &&
                split(NULL, string_discipline, DISCIPLINE_SEPARATOR) )
                        return TRUE;

        return FALSE;

}

int find_in_array(string_to_search, array_to_be_searched, length_of_array)
char* string_to_search,
        (* array_to_be_searched)[300];
int length_of_array;
{

        register int i=0;

        for(i = 0; i <= length_of_array; i++) {

                if(!strcmp(string_to_search, array_to_be_searched[i])) {
                        return i+1;
                }

        }

        return EOF;

}

void itoa(int_number, string_number)
int int_number;
char* string_number;
{

        int string_length = 0,
                original_int_number = int_number,
                i = 0;

        do {
                string_length++;
        } while(int_number /= 10);

        string_number[string_length] = NUL;

        do {
                string_number[--string_length] = original_int_number % 10 + '0';
        } while(original_int_number /= 10);

}