#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define BUFSIZE 1024

void get_column(char columns[2000][1000],FILE *file_json,int *nr_col);
void get_lines(FILE *file_json,FILE *file_out,int *nr_col);

int main()
{
    FILE *file_json = fopen("convertor.in","r");
	FILE *file_out = fopen("convertor.out","w");
    int nr_col = 0,i;
    char columns[2000][1000];
	for(i = 0; i < 2000; i++)
		memset(columns[i],0,1000);
    get_column(columns,file_json,&nr_col);
	for(i = 0; i < nr_col ; i++)
		fprintf(file_out,"%s,",columns[i]);
	fprintf(file_out,"\n"); 
	get_lines(file_json,file_out,&nr_col);
	fclose(file_json);
	fclose(file_out);
    return 0;
}

void get_column(char columns[2000][1000],FILE *file_json,int *nr_col) {
    int i,j = 0,ok = 0,len;
    char line[BUFSIZE],sample[5000];

	/* Separ continutul primelor acolade */

    while(fgets(line,BUFSIZE,file_json)) {
		len = strlen(line);
        for(i = 0; i < len && line[i] != '}'; i++) {
            //printf("%c",line[i]);
            if(ok || line[i] == '{') {              
				ok = 1;
                sample[j++] = line[i];
            }
        }
        if (line[i] == '}')
            break;
    }
	sample[j] = 0;
	j = 0;
	//printf("%s",sample);
	for(i = 0; i < strlen(sample); i++) {
		if (sample[i] == '"') {
			strncpy(columns[j++],sample + i + 1,strchr(sample + i + 1,'"') - sample - i - 1);
			columns[j-1][strlen(columns[j-1])] = 0;
		//	printf("%s,",columns[j-1]);
			(*nr_col)++;
			i = strchr(sample + i + 1,'"') - sample + 1;
			/* sar peste urmatoarele " sau numar */
			for( ; i < strlen(sample); i++) {
				if(sample[i] == '"') {
					i = strchr(sample + i + 1,'"') + 1 - sample;
					break;
				}
				if(isdigit(sample[i])) {
					while(isdigit(sample[++i]))
						;
					break;
				}	
			}
		}
	}
    //printf("%s",columns[0]);
	rewind(file_json);
}

void get_lines(FILE *file_json,FILE *file_out,int *nr_col) {
	char *c;
	int size,i = 0,k = 0,aux;

	fseek(file_json,0,2);
	size = ftell(file_json);
	rewind(file_json);

	c = malloc(size + 1);
	fread(c,size,1,file_json);
	c[size] = 0;

	point :
	if(k == *nr_col) {
		fwrite("\n",1,1,file_out);
		k = 0;
	}
	while(strchr(c + i,'\"')) {
		i = strchr(c + i,'\"') + 1 - c;
		i = strchr(c + i,'\"') + 1 - c;
		while(i++)
			switch (c[i]) {
				case '\"' :
					aux = strchr(c + i + 1,'\"') + 1 - c;
					fwrite(c + i + 1,aux - i - 2,1,file_out);
					fwrite(",",1,1,file_out);
					i = aux;
					k++;
					goto point;
				default : 
					if(isdigit(c[i])) {
						aux = i++;
						while(isdigit(c[i++])) 		
		 					;
						fwrite(c + aux,i - aux - 1,1,file_out);
						fwrite(",",1,1,file_out);
						k++;
						goto point;														
					}
			}
	}
}