#include <stddef.h>
#include <stdio.h>

#include "sqlite3.h"

int zpm_quote(char *value, char *dest, size_t n) {
	size_t dlen = 0;
	int nch = 0;
	char *s;

	/* figure out length of quoted string */
	for (s = value; *s; s++) {
		dlen++;
		if (*s == '\'') dlen++;
	}

	/* if there's enough room for the string and the terminating null
	 * byte, quote the string
	 */
	if (dest && dlen < n) {
		while (*value) {
			if (*value == '\'') {
				*dest++ = '\'';
				nch++;
			}
			*dest++ = *value++;
			nch++;
		}
		dest[nch] = 0;
	}


	/* returns either the number of characters written or would
	 * be written
	 */
	return dlen;
}