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

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

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

	//copy string to temporary
	CREATE_A(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';
	aFree (ptr);
	return &pt[0];
}

char* jstrescapecpy (char* pt,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 &pt[0];
}
int jmemescapecpy (char* pt,char* spt, int size) {
	//copy from here
	int i =0, j=0;

	while (i < size) {
		switch (spt[i]) {
			case '\'':
				pt[j++] = '\\';
				pt[j++] = spt[i++];
				break;
			case '\\':
				pt[j++] = '\\';
				pt[j++] = spt[i++];
				break;
			default:
				pt[j++] = spt[i++];
		}
	}
	// copy size is 0 ~ (j-1)
	return j;
}