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

#include "strlib.h"
#include "utils.h"

//-----------------------------------------------
// string lib.
unsigned char *jstrescape (unsigned char *pt)
{
    //copy from here
    unsigned char *ptr;
    int  i = 0, j = 0;

    //copy string to temporary
    CREATE (ptr, char, J_MAX_MALLOC_SIZE);
    strcpy (ptr, pt);

    while (ptr[i] != '\0')
    {
        switch (ptr[i])
        {
            case '\'':
                pt[j++] = '\\';
                pt[j++] = ptr[i++];
                break;
            case '\\':
                pt[j++] = '\\';
                pt[j++] = ptr[i++];
                break;
            default:
                pt[j++] = ptr[i++];
        }
    }
    pt[j++] = '\0';
    free (ptr);
    return (unsigned char *) &pt[0];
}

unsigned char *jstrescapecpy (unsigned char *pt, unsigned char *spt)
{
    //copy from here
    int  i = 0, j = 0;

    while (spt[i] != '\0')
    {
        switch (spt[i])
        {
            case '\'':
                pt[j++] = '\\';
                pt[j++] = spt[i++];
                break;
            case '\\':
                pt[j++] = '\\';
                pt[j++] = spt[i++];
                break;
            default:
                pt[j++] = spt[i++];
        }
    }
    pt[j++] = '\0';
    return (unsigned char *) &pt[0];
}