dz5_load

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "dz5.h"

char *ReadWord(FILE *name, char *c) {
    char *word = NULL, *rllc = NULL;
    int i = 0;

    /*Postavljanje prvog znaka*/
    word = malloc(10 * sizeof(char));
    if (word == NULL) return(NULL);
    word[i] = (*c);
    i++;

    /*Ucitavanje ostalih znakova*/
    while (((*c) = fgetc(name)) != ',' && (*c) != ';' && (*c) != '\n' && (*c)!=EOF) {
        if (i % 10 == 0) {
            rllc = realloc(word, (i + 10)*sizeof(char));
            if (rllc == NULL) return(NULL);
            else word = rllc;
        }
        word[i] = (*c);
        i++;
    }

    /*Realociranje stringa i postavljanje nultog znaka na kraj stringa*/
    rllc = realloc(word, (i + 1)*sizeof(char));
    if (NULL == rllc) return(NULL);
    else word = rllc;
    word[i] = '\0';
    return word;
}

/*Funkcija za ucitavanje naziva datoteka*/
char *ImportName(int ulaz) {
    char c, *DatName = NULL, *rllc;
    int i = 0;

    if (ulaz) while ((c = getchar()) != '\n');
    while ((c = getchar()) != '\n') {
        if (i % 10 == 0) {
            rllc = realloc(DatName, (i + 10)*sizeof(char));
            if (rllc == NULL) return(NULL);
            else DatName = rllc;
        }
        DatName[i++] = c;
    }
    rllc = realloc(DatName, (i + 1)*sizeof(char));
    if (rllc == NULL) return(NULL);
    else DatName = rllc;
    DatName[i] = '\0';
    return(DatName);
}

/*Funckija za ucitavanje kontakata iz CSV datoteke*/
User *ImportCSV(User *head, FILE *input) {
    char c;
    int i = 0;
    User *CurrUser, *NewUser;
    Field *CurrField, *NewField;

    /*Preskakanje prvog reda*/
    while ((c = fgetc(input)) != '\n') {
        if (c == EOF) return NULL;
    }


    /*Uvoz podataka iz CSV datoteke*/
    head = malloc(sizeof(User));
    if (head == NULL) return NULL;

    CurrUser = head;
    CurrUser->previous = CurrUser->next = NULL;
    CurrUser->values = malloc(sizeof(Field));
    CurrField = CurrUser->values;

    if (CurrField == NULL) return NULL;

    CurrField->FieldValue = NULL;
    CurrField->next = NULL;

    c = fgetc(input);
    if (c == EOF) return NULL;

    while (1) {
        if (c == '\n') {
            c = fgetc(input);
            if (c == EOF) break;
            /*Ucitavanje novog korisnika*/
            NewUser = malloc(sizeof(User));//
            if (NewUser == NULL) return NULL;
            NewUser->previous = CurrUser;
            NewUser->next = NULL;

            CurrUser->next = NewUser;
            CurrUser = NewUser;
            CurrUser->values = malloc(sizeof(Field));//
            CurrField = CurrUser->values;
            if (CurrField == NULL) return NULL;
            CurrField->FieldValue = NULL;
            CurrField->next = NULL;
            i = 0;
        }
        i++;
        /*Alociranje polja za nov podatak*/
        if ((c == ',') || (c == ';')) {
            NewField = malloc(sizeof(Field));
            if (NewField == NULL) return NULL;
            NewField->FieldValue = NULL;
            NewField->next = NULL;

            CurrField->next = NewField;
            CurrField = CurrField->next;
            c = fgetc(input);
            continue;
        }
        CurrField->FieldValue = ReadWord(input, &c);
    }
    return(head);
}

Ldif_f *LDIFValuesImport(FILE *name) {
    Ldif_f *LDIFFields, *curr, *novi;
    char c, *word = NULL, *rllc;
    int i = 0;

    LDIFFields = malloc(sizeof(Ldif_f));
    if (LDIFFields == NULL) return(NULL);
    curr = LDIFFields;
    while ((c = fgetc(name)) != EOF) {

        if (c == ' ') {
            rllc = realloc(word, (i + 1)*sizeof(char));/**/
            if (rllc == NULL) return NULL;
            else word = rllc;
            word[i] = '\0';
            i = 0;
            curr->FieldName = word;
            fscanf(name, "%d", &curr->FieldValue);
            word = NULL;
            continue;
        }

        if (c == ';') {
            novi = malloc(sizeof(Ldif_f));/**/
            if (novi == NULL) return NULL;
            novi->next = NULL;
            curr->next = novi;
            curr = curr->next;
            continue;
        }

        if (i % 10 == 0) {
            rllc = realloc(word, (i + 10)*sizeof(char));/**/
            if (rllc == NULL) return NULL;
            word = rllc;
        }

        word[i++] = c;
    }
    return(LDIFFields);
}