bomberstudent/Serveur/json_array.c

/* 
 * File:   json_array.c
 * Author: Arthur Brandao
 *
 * Created on 24 novembre 2018
 */

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "json.h"

/* --- Fonctions privées parser --- */

/* --- Fonctions privées encoder --- */

/**
 * Ajout un noeud au JsonArrayEncoder
 * @param JsonArrayEncoder* La structure pour encoder 
 * @param char* La chaine à mettre dans le noeud
 */
void add_json_array_node(JsonArray* this, char* str){
    //Création node
    JsonNode* node;
    node = malloc(sizeof(JsonNode));
    //Allocation node
    int length = strlen(str) + 1;
    node->str = malloc(length * sizeof(char));
    memset(node->str, 0, length);
    strncpy(node->str, str, length - 1);
    //Si 1er node
    if(this->encoder->tab == NULL){
        this->encoder->tab = node;
        node->prev = NULL;
    } else {
        node->prev = this->encoder->last;
        node->prev->next = node;
    }
    this->encoder->last = node;
    node->next = NULL;
}

/**
 * Supprimme un noeud
 * @param JsonNode* Le noeud à supprimer
 */
void delete_json_array_node(JsonNode* node){
    free(node->str);
}

/* --- Fonctions publiques parser --- */

/* --- Fonctions publiques encoder --- */

void ini_array_encoder(JsonArray* this){
    //Initialisation en mode encoder
    this->mode = JSON_ARRAY_ENCODER;
    this->encoder = malloc(sizeof(JsonArrayEncoder));
}

boolean add_array_value(JsonArray* this, char* str){
    //Verification
    if(!this->mode){
        return false;
    }
    //Ajoute la longueur de la chaine au total
    this->encoder->length += strlen(str) + 2; //Chaine + ", "
    //Ajoute le noeud
    add_json_array_node(this, str);
    return true;
}

boolean add_array_string(JsonArray* this, char* val){
    //Verification
    if(!this->mode){
        return false;
    }
    //Creation chaine
    int length = strlen(val) + 2 + 1; //val + 2 guillemet + \0
    char* str = malloc(length * sizeof(char)); 
    memset(str, 0, length);
    sprintf(str, "\"%s\"", val);
    //Ajout
    add_array_value(this, str);
    free(str);
    return true;
}

boolean add_array_number(JsonArray* this, double ndigit, int val){
    //Verification
    if(!this->mode){
        return false;
    }
    //Double en string
    char nombre[20];
    memset(nombre, 0, 20);
    ftoa(val, nombre, ndigit);
    //Ajout
    add_array_value(this, nombre);
    return true;
}

boolean add_array_integer(JsonArray* this, int val){
    //Verification
    if(!this->mode){
        return false;
    }
    //Creation chaine
    int length = ceil(val/10.0) + 1; //val + \0
    char* str = malloc(length * sizeof(char)); 
    memset(str, 0, length);
    sprintf(str, "%d", val);
    //Ajout
    add_array_value(this, str);
    free(str);
    return true;
}

boolean add_array_boolean(JsonArray* this, boolean val){
    //Verification
    if(!this->mode){
        return false;
    }
    //On determine le boolean
    char bool[6];
    if(val){
        strcpy(bool, "true");
    } else {
        strcpy(bool, "false");
    }
    //Ajout
    add_array_value(this, bool);
    return true;
}

boolean add_array_array(JsonArray* this, JsonArray* val){
    //Verification
    if(!this->mode){
        return false;
    }
    //Ajout
    add_array_value(this, json_encode_array(val));
    return true;
}


boolean add_array_object(JsonArray* this, JsonEncoder* val){
    //Verification
    if(!this->mode){
        return false;
    }
    //Ajout
    add_array_value(this, json_encode(val));
    return true;
}

char* json_encode_array(JsonArray* this){
    boolean first = true;
    //Allocation chaine
    char* str;
    str = malloc((this->encoder->length + 2) * sizeof(char)); // La chaine + []
    memset(str, 0, this->encoder->length + 2);
    //Creation de la chaine
    JsonNode* node;
    node = this->encoder->tab;
    str[0] = '[';
    while(node != NULL){
        if(first){
            sprintf(str, "%s%s", str, node->str);
            first = false;
        } else {
            sprintf(str, "%s, %s", str, node->str);
        }
        node = node->next;
    }
    sprintf(str, "%s]", str);
    //Retour
    return str;
}

/* --- Fonctions publiques --- */