/*
 * Symisc JX9: A Highly Efficient Embeddable Scripting Engine Based on JSON.
 * Copyright (C) 2012-2013, Symisc Systems http://jx9.symisc.net/
 * Version 1.7.2
 * For information on licensing, redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES
 * please contact Symisc Systems via:
 *       legal@symisc.net
 *       licensing@symisc.net
 *       contact@symisc.net
 * or visit:
 *      http://jx9.symisc.net/
 */
 /* $SymiscID: builtin.c v1.7 Win7 2012-12-13 00:01 stable <chm@symisc.net> $ */
#ifndef JX9_AMALGAMATION
#include "jx9Int.h"
#endif
/* This file implement built-in 'foreign' functions for the JX9 engine */
/*
 * Section:
 *    Variable handling Functions.
 * Authors:
 *    Symisc Systems, devel@symisc.net.
 *    Copyright (C) Symisc Systems, http://jx9.symisc.net
 * Status:
 *    Stable.
 */
/*
 * bool is_bool($var)
 *  Finds out whether a variable is a boolean.
 * Parameters
 *   $var: The variable being evaluated.
 * Return
 *  TRUE if var is a boolean. False otherwise.
 */
static int jx9Builtin_is_bool(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_bool(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_float($var)
 * bool is_real($var)
 * bool is_double($var)
 *  Finds out whether a variable is a float.
 * Parameters
 *   $var: The variable being evaluated.
 * Return
 *  TRUE if var is a float. False otherwise.
 */
static int jx9Builtin_is_float(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_float(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_int($var)
 * bool is_integer($var)
 * bool is_long($var)
 *  Finds out whether a variable is an integer.
 * Parameters
 *   $var: The variable being evaluated.
 * Return
 *  TRUE if var is an integer. False otherwise.
 */
static int jx9Builtin_is_int(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_int(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_string($var)
 *  Finds out whether a variable is a string.
 * Parameters
 *   $var: The variable being evaluated.
 * Return
 *  TRUE if var is string. False otherwise.
 */
static int jx9Builtin_is_string(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_string(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_null($var)
 *  Finds out whether a variable is NULL.
 * Parameters
 *   $var: The variable being evaluated.
 * Return
 *  TRUE if var is NULL. False otherwise.
 */
static int jx9Builtin_is_null(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_null(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_numeric($var)
 *  Find out whether a variable is NULL.
 * Parameters
 *  $var: The variable being evaluated.
 * Return
 *  True if var is numeric. False otherwise.
 */
static int jx9Builtin_is_numeric(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_numeric(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_scalar($var)
 *  Find out whether a variable is a scalar.
 * Parameters
 *  $var: The variable being evaluated.
 * Return
 *  True if var is scalar. False otherwise.
 */
static int jx9Builtin_is_scalar(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_scalar(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_array($var)
 *  Find out whether a variable is an array.
 * Parameters
 *  $var: The variable being evaluated.
 * Return
 *  True if var is an array. False otherwise.
 */
static int jx9Builtin_is_array(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_json_array(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_object($var)
 *  Find out whether a variable is an object.
 * Parameters
 *  $var: The variable being evaluated.
 * Return
 *  True if var is an object. False otherwise.
 */
static int jx9Builtin_is_object(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_json_object(apArg[0]);
	}
	/* Query result */
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * bool is_resource($var)
 *  Find out whether a variable is a resource.
 * Parameters
 *  $var: The variable being evaluated.
 * Return
 *  True if a resource. False otherwise.
 */
static int jx9Builtin_is_resource(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 0; /* Assume false by default */
	if( nArg > 0 ){
		res = jx9_value_is_resource(apArg[0]);
	}
	jx9_result_bool(pCtx, res);
	return JX9_OK;
}
/*
 * float floatval($var)
 *  Get float value of a variable.
 * Parameter
 *  $var: The variable being processed.
 * Return
 *  the float value of a variable.
 */
static int jx9Builtin_floatval(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	if( nArg < 1 ){
		/* return 0.0 */
		jx9_result_double(pCtx, 0);
	}else{
		double dval;
		/* Perform the cast */
		dval = jx9_value_to_double(apArg[0]);
		jx9_result_double(pCtx, dval);
	}
	return JX9_OK;
}
/*
 * int intval($var)
 *  Get integer value of a variable.
 * Parameter
 *  $var: The variable being processed.
 * Return
 *  the int value of a variable.
 */
static int jx9Builtin_intval(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	if( nArg < 1 ){
		/* return 0 */
		jx9_result_int(pCtx, 0);
	}else{
		sxi64 iVal;
		/* Perform the cast */
		iVal = jx9_value_to_int64(apArg[0]);
		jx9_result_int64(pCtx, iVal);
	}
	return JX9_OK;
}
/*
 * string strval($var)
 *  Get the string representation of a variable.
 * Parameter
 *  $var: The variable being processed.
 * Return
 *  the string value of a variable.
 */
static int jx9Builtin_strval(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	if( nArg < 1 ){
		/* return NULL */
		jx9_result_null(pCtx);
	}else{
		const char *zVal;
		int iLen = 0; /* cc -O6 warning */
		/* Perform the cast */
		zVal = jx9_value_to_string(apArg[0], &iLen);
		jx9_result_string(pCtx, zVal, iLen);
	}
	return JX9_OK;
}
/*
 * bool empty($var)
 *  Determine whether a variable is empty.
 * Parameters
 *   $var: The variable being checked.
 * Return
 *  0 if var has a non-empty and non-zero value.1 otherwise.
 */
static int jx9Builtin_empty(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int res = 1; /* Assume empty by default */
	if( nArg > 0 ){
		res = jx9_value_is_empty(apArg[0]);
	}
	jx9_result_bool(pCtx, res);
	return JX9_OK;
	
}
#ifndef JX9_DISABLE_BUILTIN_FUNC
#ifdef JX9_ENABLE_MATH_FUNC
/*
 * Section:
 *    Math Functions.
 * Authors:
 *    Symisc Systems, devel@symisc.net.
 *    Copyright (C) Symisc Systems, http://jx9.symisc.net
 * Status:
 *    Stable.
 */
#include <stdlib.h> /* abs */
#include <math.h>
/*
 * float sqrt(float $arg )
 *  Square root of the given number.
 * Parameter
 *  The number to process.
 * Return
 *  The square root of arg or the special value Nan of failure.
 */
static int jx9Builtin_sqrt(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = sqrt(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float exp(float $arg )
 *  Calculates the exponent of e.
 * Parameter
 *  The number to process.
 * Return
 *  'e' raised to the power of arg.
 */
static int jx9Builtin_exp(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = exp(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float floor(float $arg )
 *  Round fractions down.
 * Parameter
 *  The number to process.
 * Return
 *  Returns the next lowest integer value by rounding down value if necessary.
 */
static int jx9Builtin_floor(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = floor(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float cos(float $arg )
 *  Cosine.
 * Parameter
 *  The number to process.
 * Return
 *  The cosine of arg.
 */
static int jx9Builtin_cos(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = cos(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float acos(float $arg )
 *  Arc cosine.
 * Parameter
 *  The number to process.
 * Return
 *  The arc cosine of arg.
 */
static int jx9Builtin_acos(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = acos(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float cosh(float $arg )
 *  Hyperbolic cosine.
 * Parameter
 *  The number to process.
 * Return
 *  The hyperbolic cosine of arg.
 */
static int jx9Builtin_cosh(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = cosh(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float sin(float $arg )
 *  Sine.
 * Parameter
 *  The number to process.
 * Return
 *  The sine of arg.
 */
static int jx9Builtin_sin(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = sin(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float asin(float $arg )
 *  Arc sine.
 * Parameter
 *  The number to process.
 * Return
 *  The arc sine of arg.
 */
static int jx9Builtin_asin(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = asin(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float sinh(float $arg )
 *  Hyperbolic sine.
 * Parameter
 *  The number to process.
 * Return
 *  The hyperbolic sine of arg.
 */
static int jx9Builtin_sinh(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = sinh(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float ceil(float $arg )
 *  Round fractions up.
 * Parameter
 *  The number to process.
 * Return
 *  The next highest integer value by rounding up value if necessary.
 */
static int jx9Builtin_ceil(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = ceil(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float tan(float $arg )
 *  Tangent.
 * Parameter
 *  The number to process.
 * Return
 *  The tangent of arg.
 */
static int jx9Builtin_tan(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = tan(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float atan(float $arg )
 *  Arc tangent.
 * Parameter
 *  The number to process.
 * Return
 *  The arc tangent of arg.
 */
static int jx9Builtin_atan(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = atan(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float tanh(float $arg )
 *  Hyperbolic tangent.
 * Parameter
 *  The number to process.
 * Return
 *  The Hyperbolic tangent of arg.
 */
static int jx9Builtin_tanh(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = tanh(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float atan2(float $y, float $x)
 *  Arc tangent of two variable.
 * Parameter
 *  $y = Dividend parameter.
 *  $x = Divisor parameter.
 * Return
 *  The arc tangent of y/x in radian.
 */
static int jx9Builtin_atan2(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x, y;
	if( nArg < 2 ){
		/* Missing arguments, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	y = jx9_value_to_double(apArg[0]);
	x = jx9_value_to_double(apArg[1]);
	/* Perform the requested operation */
	r = atan2(y, x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float/int64 abs(float/int64 $arg )
 *  Absolute value.
 * Parameter
 *  The number to process.
 * Return
 *  The absolute value of number.
 */
static int jx9Builtin_abs(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int is_float;	
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	is_float = jx9_value_is_float(apArg[0]);
	if( is_float ){
		double r, x;
		x = jx9_value_to_double(apArg[0]);
		/* Perform the requested operation */
		r = fabs(x);
		jx9_result_double(pCtx, r);
	}else{
		int r, x;
		x = jx9_value_to_int(apArg[0]);
		/* Perform the requested operation */
		r = abs(x);
		jx9_result_int(pCtx, r);
	}
	return JX9_OK;
}
/*
 * float log(float $arg, [int/float $base])
 *  Natural logarithm.
 * Parameter
 *  $arg: The number to process.
 *  $base: The optional logarithmic base to use. (only base-10 is supported)
 * Return
 *  The logarithm of arg to base, if given, or the natural logarithm.
 * Note: 
 *  only Natural log and base-10 log are supported. 
 */
static int jx9Builtin_log(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	if( nArg == 2 && jx9_value_is_numeric(apArg[1]) && jx9_value_to_int(apArg[1]) == 10 ){
		/* Base-10 log */
		r = log10(x);
	}else{
		r = log(x);
	}
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float log10(float $arg )
 *  Base-10 logarithm.
 * Parameter
 *  The number to process.
 * Return
 *  The Base-10 logarithm of the given number.
 */
static int jx9Builtin_log10(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	/* Perform the requested operation */
	r = log10(x);
	/* store the result back */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * number pow(number $base, number $exp)
 *  Exponential expression.
 * Parameter
 *  base
 *  The base to use.
 * exp
 *  The exponent.
 * Return
 *  base raised to the power of exp.
 *  If the result can be represented as integer it will be returned
 *  as type integer, else it will be returned as type float. 
 */
static int jx9Builtin_pow(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double r, x, y;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	x = jx9_value_to_double(apArg[0]);
	y = jx9_value_to_double(apArg[1]);
	/* Perform the requested operation */
	r = pow(x, y);
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float pi(void)
 *  Returns an approximation of pi. 
 * Note
 *  you can use the M_PI constant which yields identical results to pi(). 
 * Return
 *  The value of pi as float.
 */
static int jx9Builtin_pi(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	SXUNUSED(nArg); /* cc warning */
	SXUNUSED(apArg);
	jx9_result_double(pCtx, JX9_PI);
	return JX9_OK;
}
/*
 * float fmod(float $x, float $y)
 *  Returns the floating point remainder (modulo) of the division of the arguments. 
 * Parameters
 * $x
 *  The dividend
 * $y
 *  The divisor
 * Return
 *  The floating point remainder of x/y.
 */
static int jx9Builtin_fmod(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double x, y, r; 
	if( nArg < 2 ){
		/* Missing arguments */
		jx9_result_double(pCtx, 0);
		return JX9_OK;
	}
	/* Extract given arguments */
	x = jx9_value_to_double(apArg[0]);
	y = jx9_value_to_double(apArg[1]);
	/* Perform the requested operation */
	r = fmod(x, y);
	/* Processing result */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
/*
 * float hypot(float $x, float $y)
 *  Calculate the length of the hypotenuse of a right-angle triangle . 
 * Parameters
 * $x
 *  Length of first side
 * $y
 *  Length of first side
 * Return
 *  Calculated length of the hypotenuse.
 */
static int jx9Builtin_hypot(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	double x, y, r; 
	if( nArg < 2 ){
		/* Missing arguments */
		jx9_result_double(pCtx, 0);
		return JX9_OK;
	}
	/* Extract given arguments */
	x = jx9_value_to_double(apArg[0]);
	y = jx9_value_to_double(apArg[1]);
	/* Perform the requested operation */
	r = hypot(x, y);
	/* Processing result */
	jx9_result_double(pCtx, r);
	return JX9_OK;
}
#endif /* JX9_ENABLE_MATH_FUNC */
/*
 * float round ( float $val [, int $precision = 0 [, int $mode = JX9_ROUND_HALF_UP ]] )
 *  Exponential expression.
 * Parameter
 *  $val
 *   The value to round.
 * $precision
 *   The optional number of decimal digits to round to.
 * $mode
 *   One of JX9_ROUND_HALF_UP, JX9_ROUND_HALF_DOWN, JX9_ROUND_HALF_EVEN, or JX9_ROUND_HALF_ODD.
 *   (not supported).
 * Return
 *  The rounded value.
 */
static int jx9Builtin_round(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int n = 0;
	double r;
	if( nArg < 1 ){
		/* Missing argument, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the precision if available */
	if( nArg > 1 ){
		n = jx9_value_to_int(apArg[1]);
		if( n>30 ){
			n = 30;
		}
		if( n<0 ){
			n = 0;
		}
	}
	r = jx9_value_to_double(apArg[0]);
	/* If Y==0 and X will fit in a 64-bit int, 
     * handle the rounding directly.Otherwise 
	 * use our own cutsom printf [i.e:SyBufferFormat()].
     */
  if( n==0 && r>=0 && r<LARGEST_INT64-1 ){
    r = (double)((jx9_int64)(r+0.5));
  }else if( n==0 && r<0 && (-r)<LARGEST_INT64-1 ){
    r = -(double)((jx9_int64)((-r)+0.5));
  }else{
	  char zBuf[256];
	  sxu32 nLen;
	  nLen = SyBufferFormat(zBuf, sizeof(zBuf), "%.*f", n, r);
	  /* Convert the string to real number */
	  SyStrToReal(zBuf, nLen, (void *)&r, 0);
  }
  /* Return thr rounded value */
  jx9_result_double(pCtx, r);
  return JX9_OK;
}
/*
 * string dechex(int $number)
 *  Decimal to hexadecimal.
 * Parameters
 *  $number
 *   Decimal value to convert
 * Return
 *  Hexadecimal string representation of number
 */
static int jx9Builtin_dechex(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int iVal;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the given number */
	iVal = jx9_value_to_int(apArg[0]);
	/* Format */
	jx9_result_string_format(pCtx, "%x", iVal);
	return JX9_OK;
}
/*
 * string decoct(int $number)
 *  Decimal to Octal.
 * Parameters
 *  $number
 *   Decimal value to convert
 * Return
 *  Octal string representation of number
 */
static int jx9Builtin_decoct(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int iVal;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the given number */
	iVal = jx9_value_to_int(apArg[0]);
	/* Format */
	jx9_result_string_format(pCtx, "%o", iVal);
	return JX9_OK;
}
/*
 * string decbin(int $number)
 *  Decimal to binary.
 * Parameters
 *  $number
 *   Decimal value to convert
 * Return
 *  Binary string representation of number
 */
static int jx9Builtin_decbin(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int iVal;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the given number */
	iVal = jx9_value_to_int(apArg[0]);
	/* Format */
	jx9_result_string_format(pCtx, "%B", iVal);
	return JX9_OK;
}
/*
 * int64 hexdec(string $hex_string)
 *  Hexadecimal to decimal.
 * Parameters
 *  $hex_string
 *   The hexadecimal string to convert
 * Return
 *  The decimal representation of hex_string 
 */
static int jx9Builtin_hexdec(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString, *zEnd;
	jx9_int64 iVal;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return -1 */
		jx9_result_int(pCtx, -1);
		return JX9_OK;
	}
	iVal = 0;
	if( jx9_value_is_string(apArg[0]) ){
		/* Extract the given string */
		zString = jx9_value_to_string(apArg[0], &nLen);
		/* Delimit the string */
		zEnd = &zString[nLen];
		/* Ignore non hex-stream */
		while( zString < zEnd ){
			if( (unsigned char)zString[0] >= 0xc0 ){
				/* UTF-8 stream */
				zString++;
				while( zString < zEnd && (((unsigned char)zString[0] & 0xc0) == 0x80) ){
					zString++;
				}
			}else{
				if( SyisHex(zString[0]) ){
					break;
				}
				/* Ignore */
				zString++;
			}
		}
		if( zString < zEnd ){
			/* Cast */
			SyHexStrToInt64(zString, (sxu32)(zEnd-zString), (void *)&iVal, 0);
		}
	}else{
		/* Extract as a 64-bit integer */
		iVal = jx9_value_to_int64(apArg[0]);
	}
	/* Return the number */
	jx9_result_int64(pCtx, iVal);
	return JX9_OK;
}
/*
 * int64 bindec(string $bin_string)
 *  Binary to decimal.
 * Parameters
 *  $bin_string
 *   The binary string to convert
 * Return
 *  Returns the decimal equivalent of the binary number represented by the binary_string argument.  
 */
static int jx9Builtin_bindec(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString;
	jx9_int64 iVal;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return -1 */
		jx9_result_int(pCtx, -1);
		return JX9_OK;
	}
	iVal = 0;
	if( jx9_value_is_string(apArg[0]) ){
		/* Extract the given string */
		zString = jx9_value_to_string(apArg[0], &nLen);
		if( nLen > 0 ){
			/* Perform a binary cast */
			SyBinaryStrToInt64(zString, (sxu32)nLen, (void *)&iVal, 0);
		}
	}else{
		/* Extract as a 64-bit integer */
		iVal = jx9_value_to_int64(apArg[0]);
	}
	/* Return the number */
	jx9_result_int64(pCtx, iVal);
	return JX9_OK;
}
/*
 * int64 octdec(string $oct_string)
 *  Octal to decimal.
 * Parameters
 *  $oct_string
 *   The octal string to convert
 * Return
 *  Returns the decimal equivalent of the octal number represented by the octal_string argument.  
 */
static int jx9Builtin_octdec(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString;
	jx9_int64 iVal;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return -1 */
		jx9_result_int(pCtx, -1);
		return JX9_OK;
	}
	iVal = 0;
	if( jx9_value_is_string(apArg[0]) ){
		/* Extract the given string */
		zString = jx9_value_to_string(apArg[0], &nLen);
		if( nLen > 0 ){
			/* Perform the cast */
			SyOctalStrToInt64(zString, (sxu32)nLen, (void *)&iVal, 0);
		}
	}else{
		/* Extract as a 64-bit integer */
		iVal = jx9_value_to_int64(apArg[0]);
	}
	/* Return the number */
	jx9_result_int64(pCtx, iVal);
	return JX9_OK;
}
/*
 * string base_convert(string $number, int $frombase, int $tobase)
 *  Convert a number between arbitrary bases.
 * Parameters
 * $number
 *  The number to convert
 * $frombase
 *  The base number is in
 * $tobase
 *  The base to convert number to
 * Return
 *  Number converted to base tobase 
 */
static int jx9Builtin_base_convert(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int nLen, iFbase, iTobase;
	const char *zNum;
	jx9_int64 iNum;
	if( nArg < 3 ){
		/* Return the empty string*/
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Base numbers */
	iFbase  = jx9_value_to_int(apArg[1]);
	iTobase = jx9_value_to_int(apArg[2]);
	if( jx9_value_is_string(apArg[0]) ){
		/* Extract the target number */
		zNum = jx9_value_to_string(apArg[0], &nLen);
		if( nLen < 1 ){
			/* Return the empty string*/
			jx9_result_string(pCtx, "", 0);
			return JX9_OK;
		}
		/* Base conversion */
		switch(iFbase){
		case 16:
			/* Hex */
			SyHexStrToInt64(zNum, (sxu32)nLen, (void *)&iNum, 0);
			break;
		case 8:
			/* Octal */
			SyOctalStrToInt64(zNum, (sxu32)nLen, (void *)&iNum, 0);
			break;
		case 2:
			/* Binary */
			SyBinaryStrToInt64(zNum, (sxu32)nLen, (void *)&iNum, 0);
			break;
		default:
			/* Decimal */
			SyStrToInt64(zNum, (sxu32)nLen, (void *)&iNum, 0);
			break;
		}
	}else{
		iNum = jx9_value_to_int64(apArg[0]);
	}
	switch(iTobase){
	case 16:
		/* Hex */
		jx9_result_string_format(pCtx, "%qx", iNum); /* Quad hex */
		break;
	case 8:
		/* Octal */
		jx9_result_string_format(pCtx, "%qo", iNum); /* Quad octal */
		break;
	case 2:
		/* Binary */
		jx9_result_string_format(pCtx, "%qB", iNum); /* Quad binary */
		break;
	default:
		/* Decimal */
		jx9_result_string_format(pCtx, "%qd", iNum); /* Quad decimal */
		break;
	}
	return JX9_OK;
}
/*
 * Section:
 *    String handling Functions.
 * Authors:
 *    Symisc Systems, devel@symisc.net.
 *    Copyright (C) Symisc Systems, http://jx9.symisc.net
 * Status:
 *    Stable.
 */
/*
 * string substr(string $string, int $start[, int $length ])
 *  Return part of a string.
 * Parameters
 *  $string
 *   The input string. Must be one character or longer.
 * $start
 *   If start is non-negative, the returned string will start at the start'th position
 *   in string, counting from zero. For instance, in the string 'abcdef', the character
 *   at position 0 is 'a', the character at position 2 is 'c', and so forth.
 *   If start is negative, the returned string will start at the start'th character
 *   from the end of string.
 *   If string is less than or equal to start characters long, FALSE will be returned.
 * $length
 *   If length is given and is positive, the string returned will contain at most length
 *   characters beginning from start (depending on the length of string).
 *   If length is given and is negative, then that many characters will be omitted from
 *   the end of string (after the start position has been calculated when a start is negative).
 *   If start denotes the position of this truncation or beyond, false will be returned.
 *   If length is given and is 0, FALSE or NULL an empty string will be returned.
 *   If length is omitted, the substring starting from start until the end of the string
 *   will be returned. 
 * Return
 *  Returns the extracted part of string, or FALSE on failure or an empty string.
 */
static int jx9Builtin_substr(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zSource, *zOfft;
	int nOfft, nLen, nSrcLen;	
	if( nArg < 2 ){
		/* return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zSource = jx9_value_to_string(apArg[0], &nSrcLen);
	if( nSrcLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	nLen = nSrcLen; /* cc warning */
	/* Extract the offset */
	nOfft = jx9_value_to_int(apArg[1]);
	if( nOfft < 0 ){
		zOfft = &zSource[nSrcLen+nOfft]; 
		if( zOfft < zSource ){
			/* Invalid offset */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		nLen = (int)(&zSource[nSrcLen]-zOfft);
		nOfft = (int)(zOfft-zSource);
	}else if( nOfft >= nSrcLen ){
		/* Invalid offset */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}else{
		zOfft = &zSource[nOfft];
		nLen = nSrcLen - nOfft;
	}
	if( nArg > 2 ){
		/* Extract the length */
		nLen = jx9_value_to_int(apArg[2]);
		if( nLen == 0 ){
			/* Invalid length, return an empty string */
			jx9_result_string(pCtx, "", 0);
			return JX9_OK;
		}else if( nLen < 0 ){
			nLen = nSrcLen + nLen - nOfft;
			if( nLen < 1 ){
				/* Invalid  length */
				nLen = nSrcLen - nOfft;
			}
		}
		if( nLen + nOfft > nSrcLen ){
			/* Invalid length */
			nLen = nSrcLen - nOfft;
		}
	}
	/* Return the substring */
	jx9_result_string(pCtx, zOfft, nLen);
	return JX9_OK;
}
/*
 * int substr_compare(string $main_str, string $str , int $offset[, int $length[, bool $case_insensitivity = false ]])
 *  Binary safe comparison of two strings from an offset, up to length characters.
 * Parameters
 *  $main_str
 *  The main string being compared.
 *  $str
 *   The secondary string being compared.
 * $offset
 *  The start position for the comparison. If negative, it starts counting from
 *  the end of the string.
 * $length
 *  The length of the comparison. The default value is the largest of the length 
 *  of the str compared to the length of main_str less the offset.
 * $case_insensitivity
 *  If case_insensitivity is TRUE, comparison is case insensitive.
 * Return
 *  Returns < 0 if main_str from position offset is less than str, > 0 if it is greater than
 *  str, and 0 if they are equal. If offset is equal to or greater than the length of main_str
 *  or length is set and is less than 1, substr_compare() prints a warning and returns FALSE. 
 */
static int jx9Builtin_substr_compare(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zSource, *zOfft, *zSub;
	int nOfft, nLen, nSrcLen, nSublen;
	int iCase = 0;
	int rc;
	if( nArg < 3 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zSource = jx9_value_to_string(apArg[0], &nSrcLen);
	if( nSrcLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	nLen = nSrcLen; /* cc warning */
	/* Extract the substring */
	zSub = jx9_value_to_string(apArg[1], &nSublen);
	if( nSublen < 1 || nSublen > nSrcLen){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the offset */
	nOfft = jx9_value_to_int(apArg[2]);
	if( nOfft < 0 ){
		zOfft = &zSource[nSrcLen+nOfft]; 
		if( zOfft < zSource ){
			/* Invalid offset */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		nLen = (int)(&zSource[nSrcLen]-zOfft);
		nOfft = (int)(zOfft-zSource);
	}else if( nOfft >= nSrcLen ){
		/* Invalid offset */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}else{
		zOfft = &zSource[nOfft];
		nLen = nSrcLen - nOfft;
	}
	if( nArg > 3 ){
		/* Extract the length */
		nLen = jx9_value_to_int(apArg[3]);
		if( nLen < 1 ){
			/* Invalid  length */
			jx9_result_int(pCtx, 1);
			return JX9_OK;
		}else if( nLen + nOfft > nSrcLen ){
			/* Invalid length */
			nLen = nSrcLen - nOfft;
		}
		if( nArg > 4 ){
			/* Case-sensitive or not */
			iCase = jx9_value_to_bool(apArg[4]);
		}
	}
	/* Perform the comparison */
	if( iCase ){
		rc = SyStrnicmp(zOfft, zSub, (sxu32)nLen);
	}else{
		rc = SyStrncmp(zOfft, zSub, (sxu32)nLen);
	}
	/* Comparison result */
	jx9_result_int(pCtx, rc);
	return JX9_OK;
}
/*
 * int substr_count(string $haystack, string $needle[, int $offset = 0 [, int $length ]])
 *  Count the number of substring occurrences.
 * Parameters
 * $haystack
 *   The string to search in
 * $needle
 *   The substring to search for
 * $offset
 *  The offset where to start counting
 * $length (NOT USED)
 *  The maximum length after the specified offset to search for the substring.
 *  It outputs a warning if the offset plus the length is greater than the haystack length.
 * Return
 *  Toral number of substring occurrences.
 */
static int jx9Builtin_substr_count(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zText, *zPattern, *zEnd;
	int nTextlen, nPatlen;
	int iCount = 0;
	sxu32 nOfft;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Point to the haystack */
	zText = jx9_value_to_string(apArg[0], &nTextlen);
	/* Point to the neddle */
	zPattern = jx9_value_to_string(apArg[1], &nPatlen);
	if( nTextlen < 1 || nPatlen < 1 || nPatlen > nTextlen ){
		/* NOOP, return zero */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	if( nArg > 2 ){
		int nOfft;
		/* Extract the offset */
		nOfft = jx9_value_to_int(apArg[2]);
		if( nOfft < 0 || nOfft > nTextlen ){
			/* Invalid offset, return zero */
			jx9_result_int(pCtx, 0);
			return JX9_OK;
		}
		/* Point to the desired offset */
		zText = &zText[nOfft];
		/* Adjust length */
		nTextlen -= nOfft;
	}
	/* Point to the end of the string */
	zEnd = &zText[nTextlen];
	if( nArg > 3 ){
		int nLen;
		/* Extract the length */
		nLen = jx9_value_to_int(apArg[3]);
		if( nLen < 0 || nLen > nTextlen ){
			/* Invalid length, return 0 */
			jx9_result_int(pCtx, 0);
			return JX9_OK;
		}
		/* Adjust pointer */
		nTextlen = nLen;
		zEnd = &zText[nTextlen];
	}
	/* Perform the search */
	for(;;){
		rc = SyBlobSearch((const void *)zText, (sxu32)(zEnd-zText), (const void *)zPattern, nPatlen, &nOfft);
		if( rc != SXRET_OK ){
			/* Pattern not found, break immediately */
			break;
		}
		/* Increment counter and update the offset */
		iCount++;
		zText += nOfft + nPatlen;
		if( zText >= zEnd ){
			break;
		}
	}
	/* Pattern count */
	jx9_result_int(pCtx, iCount);
	return JX9_OK;
}
/*
 * string chunk_split(string $body[, int $chunklen = 76 [, string $end = "\r\n" ]])
 *   Split a string into smaller chunks.
 * Parameters
 *  $body
 *   The string to be chunked.
 * $chunklen
 *   The chunk length.
 * $end
 *   The line ending sequence.
 * Return
 *  The chunked string or NULL on failure.
 */
static int jx9Builtin_chunk_split(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn, *zEnd, *zSep = "\r\n";
	int nSepLen, nChunkLen, nLen;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Nothing to split, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* initialize/Extract arguments */
	nSepLen = (int)sizeof("\r\n") - 1;
	nChunkLen = 76;
	zIn = jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nArg > 1 ){
		/* Chunk length */
		nChunkLen = jx9_value_to_int(apArg[1]);
		if( nChunkLen < 1 ){
			/* Switch back to the default length */
			nChunkLen = 76;
		}
		if( nArg > 2 ){
			/* Separator */
			zSep = jx9_value_to_string(apArg[2], &nSepLen);
			if( nSepLen < 1 ){
				/* Switch back to the default separator */
				zSep = "\r\n";
				nSepLen = (int)sizeof("\r\n") - 1;
			}
		}
	}
	/* Perform the requested operation */
	if( nChunkLen > nLen ){
		/* Nothing to split, return the string and the separator */
		jx9_result_string_format(pCtx, "%.*s%.*s", nLen, zIn, nSepLen, zSep);
		return JX9_OK;
	}
	while( zIn < zEnd ){
		if( nChunkLen > (int)(zEnd-zIn) ){
			nChunkLen = (int)(zEnd - zIn);
		}
		/* Append the chunk and the separator */
		jx9_result_string_format(pCtx, "%.*s%.*s", nChunkLen, zIn, nSepLen, zSep);
		/* Point beyond the chunk */
		zIn += nChunkLen;
	}
	return JX9_OK;
}
/*
 * string htmlspecialchars(string $string [, int $flags = ENT_COMPAT | ENT_HTML401 [, string $charset]])
 *  HTML escaping of special characters.
 *  The translations performed are:
 *   '&' (ampersand) ==> '&amp;'
 *   '"' (double quote) ==> '&quot;' when ENT_NOQUOTES is not set.
 *   "'" (single quote) ==> '&#039;' only when ENT_QUOTES is set.
 *   '<' (less than) ==> '&lt;'
 *   '>' (greater than) ==> '&gt;'
 * Parameters
 *  $string
 *   The string being converted.
 * $flags
 *   A bitmask of one or more of the following flags, which specify how to handle quotes.
 *   The default is ENT_COMPAT | ENT_HTML401.
 *   ENT_COMPAT 	Will convert double-quotes and leave single-quotes alone.
 *   ENT_QUOTES 	Will convert both double and single quotes.
 *   ENT_NOQUOTES 	Will leave both double and single quotes unconverted.
 *   ENT_IGNORE 	Silently discard invalid code unit sequences instead of returning an empty string.
 * $charset
 *  Defines character set used in conversion. The default character set is ISO-8859-1. (Not used)
 * Return
 *  The escaped string or NULL on failure.
 */
static int jx9Builtin_htmlspecialchars(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zCur, *zIn, *zEnd;
	int iFlags = 0x01|0x40; /* ENT_COMPAT | ENT_HTML401 */
	int nLen, c;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	/* Extract the flags if available */
	if( nArg > 1 ){
		iFlags = jx9_value_to_int(apArg[1]);
		if( iFlags < 0 ){
			iFlags = 0x01|0x40;
		}
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			break;
		}
		zCur = zIn;
		while( zIn < zEnd && zIn[0] != '&' && zIn[0] != '\'' && zIn[0] != '"' && zIn[0] != '<' && zIn[0] != '>' ){
			zIn++;
		}
		if( zCur < zIn ){
			/* Append the raw string verbatim */
			jx9_result_string(pCtx, zCur, (int)(zIn-zCur));
		}
		if( zIn >= zEnd ){
			break;
		}
		c = zIn[0];
		if( c == '&' ){
			/* Expand '&amp;' */
			jx9_result_string(pCtx, "&amp;", (int)sizeof("&amp;")-1);
		}else if( c == '<' ){
			/* Expand '&lt;' */
			jx9_result_string(pCtx, "&lt;", (int)sizeof("&lt;")-1);
		}else if( c == '>' ){
			/* Expand '&gt;' */
			jx9_result_string(pCtx, "&gt;", (int)sizeof("&gt;")-1);
		}else if( c == '\'' ){
			if( iFlags & 0x02 /*ENT_QUOTES*/ ){
				/* Expand '&#039;' */
				jx9_result_string(pCtx, "&#039;", (int)sizeof("&#039;")-1);
			}else{
				/* Leave the single quote untouched */
				jx9_result_string(pCtx, "'", (int)sizeof(char));
			}
		}else if( c == '"' ){
			if( (iFlags & 0x04) == 0 /*ENT_NOQUOTES*/ ){
				/* Expand '&quot;' */
				jx9_result_string(pCtx, "&quot;", (int)sizeof("&quot;")-1);
			}else{
				/* Leave the double quote untouched */
				jx9_result_string(pCtx, "\"", (int)sizeof(char));
			}
		}
		/* Ignore the unsafe HTML character */
		zIn++;
	}
	return JX9_OK;
}
/*
 * string htmlspecialchars_decode(string $string[, int $quote_style = ENT_COMPAT ])
 *  Unescape HTML entities.
 * Parameters
 *  $string
 *   The string to decode
 *  $quote_style
 *    The quote style. One of the following constants:
 *   ENT_COMPAT 	Will convert double-quotes and leave single-quotes alone (default)
 *   ENT_QUOTES 	Will convert both double and single quotes
 *   ENT_NOQUOTES 	Will leave both double and single quotes unconverted
 * Return
 *  The unescaped string or NULL on failure.
 */
static int jx9Builtin_htmlspecialchars_decode(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zCur, *zIn, *zEnd;
	int iFlags = 0x01; /* ENT_COMPAT */
	int nLen, nJump;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	/* Extract the flags if available */
	if( nArg > 1 ){
		iFlags = jx9_value_to_int(apArg[1]);
		if( iFlags < 0 ){
			iFlags = 0x01;
		}
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			break;
		}
		zCur = zIn;
		while( zIn < zEnd && zIn[0] != '&' ){
			zIn++;
		}
		if( zCur < zIn ){
			/* Append the raw string verbatim */
			jx9_result_string(pCtx, zCur, (int)(zIn-zCur));
		}
		nLen = (int)(zEnd-zIn);
		nJump = (int)sizeof(char);
		if( nLen >= (int)sizeof("&amp;")-1 && SyStrnicmp(zIn, "&amp;", sizeof("&amp;")-1) == 0 ){
			/* &amp; ==> '&' */
			jx9_result_string(pCtx, "&", (int)sizeof(char));
			nJump = (int)sizeof("&amp;")-1;
		}else if( nLen >= (int)sizeof("&lt;")-1 && SyStrnicmp(zIn, "&lt;", sizeof("&lt;")-1) == 0 ){
			/* &lt; ==> < */
			jx9_result_string(pCtx, "<", (int)sizeof(char));
			nJump = (int)sizeof("&lt;")-1; 
		}else if( nLen >= (int)sizeof("&gt;")-1 && SyStrnicmp(zIn, "&gt;", sizeof("&gt;")-1) == 0 ){
			/* &gt; ==> '>' */
			jx9_result_string(pCtx, ">", (int)sizeof(char));
			nJump = (int)sizeof("&gt;")-1; 
		}else if( nLen >= (int)sizeof("&quot;")-1 && SyStrnicmp(zIn, "&quot;", sizeof("&quot;")-1) == 0 ){
			/* &quot; ==> '"' */
			if( (iFlags & 0x04) == 0 /*ENT_NOQUOTES*/ ){
				jx9_result_string(pCtx, "\"", (int)sizeof(char));
			}else{
				/* Leave untouched */
				jx9_result_string(pCtx, "&quot;", (int)sizeof("&quot;")-1);
			}
			nJump = (int)sizeof("&quot;")-1;
		}else if( nLen >= (int)sizeof("&#039;")-1 && SyStrnicmp(zIn, "&#039;", sizeof("&#039;")-1) == 0 ){
			/* &#039; ==> ''' */
			if( iFlags & 0x02 /*ENT_QUOTES*/ ){
				/* Expand ''' */
				jx9_result_string(pCtx, "'", (int)sizeof(char));
			}else{
				/* Leave untouched */
				jx9_result_string(pCtx, "&#039;", (int)sizeof("&#039;")-1);
			}
			nJump = (int)sizeof("&#039;")-1;
		}else if( nLen >= (int)sizeof(char) ){
			/* expand '&' */
			jx9_result_string(pCtx, "&", (int)sizeof(char));
		}else{
			/* No more input to process */
			break;
		}
		zIn += nJump;
	}
	return JX9_OK;
}
/* HTML encoding/Decoding table 
 * Source: Symisc RunTime API.[chm@symisc.net]
 */
static const char *azHtmlEscape[] = {
 	"&lt;", "<", "&gt;", ">", "&amp;", "&", "&quot;", "\"", "&#39;", "'", 
	"&#33;", "!", "&#36;", "$", "&#35;", "#", "&#37;", "%", "&#40;", "(", 
	"&#41;", ")", "&#123;", "{", "&#125;", "}", "&#61;", "=", "&#43;", "+", 
	"&#63;", "?", "&#91;", "[", "&#93;", "]", "&#64;", "@", "&#44;", "," 
 };
/*
 * array get_html_translation_table(void)
 *  Returns the translation table used by htmlspecialchars() and htmlentities().
 * Parameters
 *  None
 * Return
 *  The translation table as an array or NULL on failure.
 */
static int jx9Builtin_get_html_translation_table(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	jx9_value *pArray, *pValue;
	sxu32 n;
	/* Element value */
	pValue = jx9_context_new_scalar(pCtx);
	if( pValue == 0 ){
		SXUNUSED(nArg); /* cc warning */
		SXUNUSED(apArg);
		/* Return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Create a new array */
	pArray = jx9_context_new_array(pCtx);
	if( pArray == 0 ){
		/* Return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Make the table */
	for( n = 0 ; n < SX_ARRAYSIZE(azHtmlEscape) ; n += 2 ){
		/* Prepare the value */
		jx9_value_string(pValue, azHtmlEscape[n], -1 /* Compute length automatically */);
		/* Insert the value */
		jx9_array_add_strkey_elem(pArray, azHtmlEscape[n+1], pValue);
		/* Reset the string cursor */
		jx9_value_reset_string_cursor(pValue);
	}
	/* 
	 * Return the array.
	 * Don't worry about freeing memory, everything will be automatically
	 * released upon we return from this function.
	 */
	jx9_result_value(pCtx, pArray);
	return JX9_OK;
}
/*
 * string htmlentities( string $string [, int $flags = ENT_COMPAT | ENT_HTML401]);
 *   Convert all applicable characters to HTML entities
 * Parameters
 * $string
 *   The input string.
 * $flags
 *  A bitmask of one or more of the flags (see block-comment on jx9Builtin_htmlspecialchars())
 * Return
 * The encoded string.
 */
static int jx9Builtin_htmlentities(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int iFlags = 0x01; /* ENT_COMPAT */
	const char *zIn, *zEnd;
	int nLen, c;
	sxu32 n;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	/* Extract the flags if available */
	if( nArg > 1 ){
		iFlags = jx9_value_to_int(apArg[1]);
		if( iFlags < 0 ){
			iFlags = 0x01;
		}
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* No more input to process */
			break;
		}
		c = zIn[0];
		/* Perform a linear lookup on the decoding table */
		for( n = 0 ; n < SX_ARRAYSIZE(azHtmlEscape) ; n += 2 ){
			if( azHtmlEscape[n+1][0] == c ){
				/* Got one */
				break;
			}
		}
		if( n < SX_ARRAYSIZE(azHtmlEscape) ){
			/* Output the safe sequence [i.e: '<' ==> '&lt;"] */
			if( c == '"' && (iFlags & 0x04) /*ENT_NOQUOTES*/ ){
				/* Expand the double quote verbatim */
				jx9_result_string(pCtx, (const char *)&c, (int)sizeof(char));
			}else if(c == '\'' && ((iFlags & 0x02 /*ENT_QUOTES*/) == 0 || (iFlags & 0x04) /*ENT_NOQUOTES*/) ){
				/* expand single quote verbatim */
				jx9_result_string(pCtx, (const char *)&c, (int)sizeof(char));
			}else{
				jx9_result_string(pCtx, azHtmlEscape[n], -1/*Compute length automatically */);
			}
		}else{
			/* Output character verbatim */
			jx9_result_string(pCtx, (const char *)&c, (int)sizeof(char));
		}
		zIn++;
	}
	return JX9_OK;
}
/*
 * string html_entity_decode(string $string [, int $quote_style = ENT_COMPAT [, string $charset = 'UTF-8' ]])
 *   Perform the reverse operation of html_entity_decode().
 * Parameters
 * $string
 *   The input string.
 * $flags
 *  A bitmask of one or more of the flags (see comment on jx9Builtin_htmlspecialchars())
 * Return
 * The decoded string.
 */
static int jx9Builtin_html_entity_decode(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zCur, *zIn, *zEnd;
	int iFlags = 0x01; /* ENT_COMPAT  */
	int nLen;
	sxu32 n;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	/* Extract the flags if available */
	if( nArg > 1 ){
		iFlags = jx9_value_to_int(apArg[1]);
		if( iFlags < 0 ){
			iFlags = 0x01;
		}
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* No more input to process */
			break;
		}
		zCur = zIn;
		while( zIn < zEnd && zIn[0] != '&' ){
			zIn++;
		}
		if( zCur < zIn ){
			/* Append raw string verbatim */
			jx9_result_string(pCtx, zCur, (int)(zIn-zCur));
		}
		if( zIn >= zEnd ){
			break;
		}
		nLen = (int)(zEnd-zIn);
		/* Find an encoded sequence */
		for(n = 0 ; n < SX_ARRAYSIZE(azHtmlEscape) ; n += 2 ){
			int iLen = (int)SyStrlen(azHtmlEscape[n]);
			if( nLen >= iLen && SyStrnicmp(zIn, azHtmlEscape[n], (sxu32)iLen) == 0 ){
				/* Got one */
				zIn += iLen;
				break;
			}
		}
		if( n < SX_ARRAYSIZE(azHtmlEscape) ){
			int c = azHtmlEscape[n+1][0];
			/* Output the decoded character */
			if( c == '\'' && ((iFlags & 0x02) == 0 /*ENT_QUOTES*/|| (iFlags & 0x04) /*ENT_NOQUOTES*/)  ){
				/* Do not process single quotes */
				jx9_result_string(pCtx, azHtmlEscape[n], -1);
			}else if( c == '"' && (iFlags & 0x04) /*ENT_NOQUOTES*/ ){
				/* Do not process double quotes */
				jx9_result_string(pCtx, azHtmlEscape[n], -1);
			}else{
				jx9_result_string(pCtx, azHtmlEscape[n+1], -1); /* Compute length automatically */
			}
		}else{
			/* Append '&' */
			jx9_result_string(pCtx, "&", (int)sizeof(char));
			zIn++;
		}
	}
	return JX9_OK;
}
/*
 * int strlen($string)
 *  return the length of the given string.
 * Parameter
 *  string: The string being measured for length.
 * Return
 *  length of the given string.
 */
static int jx9Builtin_strlen(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int iLen = 0;
	if( nArg > 0 ){
		jx9_value_to_string(apArg[0], &iLen);
	}
	/* String length */
	jx9_result_int(pCtx, iLen);
	return JX9_OK;
}
/*
 * int strcmp(string $str1, string $str2)
 *  Perform a binary safe string comparison.
 * Parameter
 *  str1: The first string
 *  str2: The second string
 * Return
 *  Returns < 0 if str1 is less than str2; > 0 if str1 is greater 
 *  than str2, and 0 if they are equal.
 */
static int jx9Builtin_strcmp(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *z1, *z2;
	int n1, n2;
	int res;
	if( nArg < 2 ){
		res = nArg == 0 ? 0 : 1;
		jx9_result_int(pCtx, res);
		return JX9_OK;
	}
	/* Perform the comparison */
	z1 = jx9_value_to_string(apArg[0], &n1);
	z2 = jx9_value_to_string(apArg[1], &n2);
	res = SyStrncmp(z1, z2, (sxu32)(SXMAX(n1, n2)));
	/* Comparison result */
	jx9_result_int(pCtx, res);
	return JX9_OK;
}
/*
 * int strncmp(string $str1, string $str2, int n)
 *  Perform a binary safe string comparison of the first n characters.
 * Parameter
 *  str1: The first string
 *  str2: The second string
 * Return
 *  Returns < 0 if str1 is less than str2; > 0 if str1 is greater 
 *  than str2, and 0 if they are equal.
 */
static int jx9Builtin_strncmp(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *z1, *z2;
	int res;
	int n;
	if( nArg < 3 ){
		/* Perform a standard comparison */
		return jx9Builtin_strcmp(pCtx, nArg, apArg);
	}
	/* Desired comparison length */
	n  = jx9_value_to_int(apArg[2]);
	if( n < 0 ){
		/* Invalid length */
		jx9_result_int(pCtx, -1);
		return JX9_OK;
	}
	/* Perform the comparison */
	z1 = jx9_value_to_string(apArg[0], 0);
	z2 = jx9_value_to_string(apArg[1], 0);
	res = SyStrncmp(z1, z2, (sxu32)n);
	/* Comparison result */
	jx9_result_int(pCtx, res);
	return JX9_OK;
}
/*
 * int strcasecmp(string $str1, string $str2, int n)
 *  Perform a binary safe case-insensitive string comparison.
 * Parameter
 *  str1: The first string
 *  str2: The second string
 * Return
 *  Returns < 0 if str1 is less than str2; > 0 if str1 is greater 
 *  than str2, and 0 if they are equal.
 */
static int jx9Builtin_strcasecmp(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *z1, *z2;
	int n1, n2;
	int res;
	if( nArg < 2 ){
		res = nArg == 0 ? 0 : 1;
		jx9_result_int(pCtx, res);
		return JX9_OK;
	}
	/* Perform the comparison */
	z1 = jx9_value_to_string(apArg[0], &n1);
	z2 = jx9_value_to_string(apArg[1], &n2);
	res = SyStrnicmp(z1, z2, (sxu32)(SXMAX(n1, n2)));
	/* Comparison result */
	jx9_result_int(pCtx, res);
	return JX9_OK;
}
/*
 * int strncasecmp(string $str1, string $str2, int n)
 *  Perform a binary safe case-insensitive string comparison of the first n characters.
 * Parameter
 *  $str1: The first string
 *  $str2: The second string
 *  $len:  The length of strings to be used in the comparison.
 * Return
 *  Returns < 0 if str1 is less than str2; > 0 if str1 is greater 
 *  than str2, and 0 if they are equal.
 */
static int jx9Builtin_strncasecmp(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *z1, *z2;
	int res;
	int n;
	if( nArg < 3 ){
		/* Perform a standard comparison */
		return jx9Builtin_strcasecmp(pCtx, nArg, apArg);
	}
	/* Desired comparison length */
	n  = jx9_value_to_int(apArg[2]);
	if( n < 0 ){
		/* Invalid length */
		jx9_result_int(pCtx, -1);
		return JX9_OK;
	}
	/* Perform the comparison */
	z1 = jx9_value_to_string(apArg[0], 0);
	z2 = jx9_value_to_string(apArg[1], 0);
	res = SyStrnicmp(z1, z2, (sxu32)n);
	/* Comparison result */
	jx9_result_int(pCtx, res);
	return JX9_OK;
}
/*
 * Implode context [i.e: it's private data].
 * A pointer to the following structure is forwarded
 * verbatim to the array walker callback defined below.
 */
struct implode_data {
	jx9_context *pCtx;    /* Call context */
	int bRecursive;       /* TRUE if recursive implode [this is a symisc eXtension] */
	const char *zSep;     /* Arguments separator if any */
	int nSeplen;          /* Separator length */
	int bFirst;           /* TRUE if first call */
	int nRecCount;        /* Recursion count to avoid infinite loop */
};
/*
 * Implode walker callback for the [jx9_array_walk()] interface.
 * The following routine is invoked for each array entry passed
 * to the implode() function.
 */
static int implode_callback(jx9_value *pKey, jx9_value *pValue, void *pUserData)
{
	struct implode_data *pData = (struct implode_data *)pUserData;
	const char *zData;
	int nLen;
	if( pData->bRecursive && jx9_value_is_json_array(pValue) && pData->nRecCount < 32 ){
		if( pData->nSeplen > 0 ){
			if( !pData->bFirst ){
				/* append the separator first */
				jx9_result_string(pData->pCtx, pData->zSep, pData->nSeplen);
			}else{
				pData->bFirst = 0;
			}
		}
		/* Recurse */
		pData->bFirst = 1;
		pData->nRecCount++;
		jx9HashmapWalk((jx9_hashmap *)pValue->x.pOther, implode_callback, pData);
		pData->nRecCount--;
		return JX9_OK;
	}
	/* Extract the string representation of the entry value */
	zData = jx9_value_to_string(pValue, &nLen);
	if( nLen > 0 ){
		if( pData->nSeplen > 0 ){
			if( !pData->bFirst ){
				/* append the separator first */
				jx9_result_string(pData->pCtx, pData->zSep, pData->nSeplen);
			}else{
				pData->bFirst = 0;
			}
		}
		jx9_result_string(pData->pCtx, zData, nLen);
	}else{
		SXUNUSED(pKey); /* cc warning */
	}
	return JX9_OK;
}
/*
 * string implode(string $glue, array $pieces, ...)
 * string implode(array $pieces, ...)
 *  Join array elements with a string.
 * $glue
 *   Defaults to an empty string. This is not the preferred usage of implode() as glue
 *   would be the second parameter and thus, the bad prototype would be used.
 * $pieces
 *   The array of strings to implode.
 * Return
 *  Returns a string containing a string representation of all the array elements in the same
 *  order, with the glue string between each element. 
 */
static int jx9Builtin_implode(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	struct implode_data imp_data;
	int i = 1;
	if( nArg < 1 ){
		/* Missing argument, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Prepare the implode context */
	imp_data.pCtx = pCtx;
	imp_data.bRecursive = 0;
	imp_data.bFirst = 1;
	imp_data.nRecCount = 0;
	if( !jx9_value_is_json_array(apArg[0]) ){
		imp_data.zSep = jx9_value_to_string(apArg[0], &imp_data.nSeplen);
	}else{
		imp_data.zSep = 0;
		imp_data.nSeplen = 0;
		i = 0;
	}
	jx9_result_string(pCtx, "", 0); /* Set an empty stirng */
	/* Start the 'join' process */
	while( i < nArg ){
		if( jx9_value_is_json_array(apArg[i]) ){
			/* Iterate throw array entries */
			jx9_array_walk(apArg[i], implode_callback, &imp_data);
		}else{
			const char *zData;
			int nLen;
			/* Extract the string representation of the jx9 value */
			zData = jx9_value_to_string(apArg[i], &nLen);
			if( nLen > 0 ){
				if( imp_data.nSeplen > 0 ){
					if( !imp_data.bFirst ){
						/* append the separator first */
						jx9_result_string(pCtx, imp_data.zSep, imp_data.nSeplen);
					}else{
						imp_data.bFirst = 0;
					}
				}
				jx9_result_string(pCtx, zData, nLen);
			}
		}
		i++;
	}
	return JX9_OK;
}
/*
 * string implode_recursive(string $glue, array $pieces, ...)
 * Purpose
 *  Same as implode() but recurse on arrays.
 * Example:
 *   $a = array('usr', array('home', 'dean'));
 *   print implode_recursive("/", $a);
 *   Will output
 *     usr/home/dean.
 *   While the standard implode would produce.
 *    usr/Array.
 * Parameter
 *  Refer to implode().
 * Return
 *  Refer to implode().
 */
static int jx9Builtin_implode_recursive(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	struct implode_data imp_data;
	int i = 1;
	if( nArg < 1 ){
		/* Missing argument, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Prepare the implode context */
	imp_data.pCtx = pCtx;
	imp_data.bRecursive = 1;
	imp_data.bFirst = 1;
	imp_data.nRecCount = 0;
	if( !jx9_value_is_json_array(apArg[0]) ){
		imp_data.zSep = jx9_value_to_string(apArg[0], &imp_data.nSeplen);
	}else{
		imp_data.zSep = 0;
		imp_data.nSeplen = 0;
		i = 0;
	}
	jx9_result_string(pCtx, "", 0); /* Set an empty stirng */
	/* Start the 'join' process */
	while( i < nArg ){
		if( jx9_value_is_json_array(apArg[i]) ){
			/* Iterate throw array entries */
			jx9_array_walk(apArg[i], implode_callback, &imp_data);
		}else{
			const char *zData;
			int nLen;
			/* Extract the string representation of the jx9 value */
			zData = jx9_value_to_string(apArg[i], &nLen);
			if( nLen > 0 ){
				if( imp_data.nSeplen > 0 ){
					if( !imp_data.bFirst ){
						/* append the separator first */
						jx9_result_string(pCtx, imp_data.zSep, imp_data.nSeplen);
					}else{
						imp_data.bFirst = 0;
					}
				}
				jx9_result_string(pCtx, zData, nLen);
			}
		}
		i++;
	}
	return JX9_OK;
}
/*
 * array explode(string $delimiter, string $string[, int $limit ])
 *  Returns an array of strings, each of which is a substring of string 
 *  formed by splitting it on boundaries formed by the string delimiter. 
 * Parameters
 *  $delimiter
 *   The boundary string.
 * $string
 *   The input string.
 * $limit
 *   If limit is set and positive, the returned array will contain a maximum
 *   of limit elements with the last element containing the rest of string.
 *   If the limit parameter is negative, all fields except the last -limit are returned.
 *   If the limit parameter is zero, then this is treated as 1.
 * Returns
 *  Returns an array of strings created by splitting the string parameter
 *  on boundaries formed by the delimiter.
 *  If delimiter is an empty string (""), explode() will return FALSE. 
 *  If delimiter contains a value that is not contained in string and a negative
 *  limit is used, then an empty array will be returned, otherwise an array containing string
 *  will be returned. 
 * NOTE:
 *  Negative limit is not supported.
 */
static int jx9Builtin_explode(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zDelim, *zString, *zCur, *zEnd;
	int nDelim, nStrlen, iLimit;
	jx9_value *pArray;
	jx9_value *pValue;
	sxu32 nOfft;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the delimiter */
	zDelim = jx9_value_to_string(apArg[0], &nDelim);
	if( nDelim < 1 ){
		/* Empty delimiter, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the string */
	zString = jx9_value_to_string(apArg[1], &nStrlen);
	if( nStrlen < 1 ){
		/* Empty delimiter, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Point to the end of the string */
	zEnd = &zString[nStrlen];
	/* Create the array */
	pArray =  jx9_context_new_array(pCtx);
	pValue = jx9_context_new_scalar(pCtx);
	if( pArray == 0 || pValue == 0 ){
		/* Out of memory, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Set a defualt limit */
	iLimit = SXI32_HIGH;
	if( nArg > 2 ){
		iLimit = jx9_value_to_int(apArg[2]);
		 if( iLimit < 0 ){
			iLimit = -iLimit;
		}
		if( iLimit == 0 ){
			iLimit = 1;
		}
		iLimit--;
	}
	/* Start exploding */
	for(;;){
		if( zString >= zEnd ){
			/* No more entry to process */
			break;
		}
		rc = SyBlobSearch(zString, (sxu32)(zEnd-zString), zDelim, nDelim, &nOfft);
		if( rc != SXRET_OK || iLimit <= (int)jx9_array_count(pArray) ){
			/* Limit reached, insert the rest of the string and break */
			if( zEnd > zString ){
				jx9_value_string(pValue, zString, (int)(zEnd-zString));
				jx9_array_add_elem(pArray, 0/* Automatic index assign*/, pValue);
			}
			break;
		}
		/* Point to the desired offset */
		zCur = &zString[nOfft];
		if( zCur > zString ){
			/* Perform the store operation */
			jx9_value_string(pValue, zString, (int)(zCur-zString));
			jx9_array_add_elem(pArray, 0/* Automatic index assign*/, pValue);
		}
		/* Point beyond the delimiter */
		zString = &zCur[nDelim];
		/* Reset the cursor */
		jx9_value_reset_string_cursor(pValue);
	}
	/* Return the freshly created array */
	jx9_result_value(pCtx, pArray);
	/* NOTE that every allocated jx9_value will be automatically 
	 * released as soon we return from this foregin function.
	 */
	return JX9_OK;
}
/*
 * string trim(string $str[, string $charlist ])
 *  Strip whitespace (or other characters) from the beginning and end of a string.
 * Parameters
 *  $str
 *   The string that will be trimmed.
 * $charlist
 *   Optionally, the stripped characters can also be specified using the charlist parameter.
 *   Simply list all characters that you want to be stripped.
 *   With .. you can specify a range of characters.
 * Returns.
 *  Thr processed string.
 */
static int jx9Builtin_trim(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string, return */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Start the trim process */
	if( nArg < 2 ){
		SyString sStr;
		/* Remove white spaces and NUL bytes */
		SyStringInitFromBuf(&sStr, zString, nLen);
		SyStringFullTrimSafe(&sStr);
		jx9_result_string(pCtx, sStr.zString, (int)sStr.nByte);
	}else{
		/* Char list */
		const char *zList;
		int nListlen;
		zList = jx9_value_to_string(apArg[1], &nListlen);
		if( nListlen < 1 ){
			/* Return the string unchanged */
			jx9_result_string(pCtx, zString, nLen);
		}else{
			const char *zEnd = &zString[nLen];
			const char *zCur = zString;
			const char *zPtr;
			int i;
			/* Left trim */
			for(;;){
				if( zCur >= zEnd ){
					break;
				}
				zPtr = zCur;
				for( i = 0 ; i < nListlen ; i++ ){
					if( zCur < zEnd && zCur[0] == zList[i] ){
						zCur++;
					}
				}
				if( zCur == zPtr ){
					/* No match, break immediately */
					break;
				}
			}
			/* Right trim */
			zEnd--;
			for(;;){
				if( zEnd <= zCur ){
					break;
				}
				zPtr = zEnd;
				for( i = 0 ; i < nListlen ; i++ ){
					if( zEnd > zCur && zEnd[0] == zList[i] ){
						zEnd--;
					}
				}
				if( zEnd == zPtr ){
					break;
				}
			}
			if( zCur >= zEnd ){
				/* Return the empty string */
				jx9_result_string(pCtx, "", 0);
			}else{
				zEnd++;
				jx9_result_string(pCtx, zCur, (int)(zEnd-zCur));
			}
		}
	}
	return JX9_OK;
}
/*
 * string rtrim(string $str[, string $charlist ])
 *  Strip whitespace (or other characters) from the end of a string.
 * Parameters
 *  $str
 *   The string that will be trimmed.
 * $charlist
 *   Optionally, the stripped characters can also be specified using the charlist parameter.
 *   Simply list all characters that you want to be stripped.
 *   With .. you can specify a range of characters.
 * Returns.
 *  Thr processed string.
 */
static int jx9Builtin_rtrim(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string, return */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Start the trim process */
	if( nArg < 2 ){
		SyString sStr;
		/* Remove white spaces and NUL bytes*/
		SyStringInitFromBuf(&sStr, zString, nLen);
		SyStringRightTrimSafe(&sStr);
		jx9_result_string(pCtx, sStr.zString, (int)sStr.nByte);
	}else{
		/* Char list */
		const char *zList;
		int nListlen;
		zList = jx9_value_to_string(apArg[1], &nListlen);
		if( nListlen < 1 ){
			/* Return the string unchanged */
			jx9_result_string(pCtx, zString, nLen);
		}else{
			const char *zEnd = &zString[nLen - 1];
			const char *zCur = zString;
			const char *zPtr;
			int i;
			/* Right trim */
			for(;;){
				if( zEnd <= zCur ){
					break;
				}
				zPtr = zEnd;
				for( i = 0 ; i < nListlen ; i++ ){
					if( zEnd > zCur && zEnd[0] == zList[i] ){
						zEnd--;
					}
				}
				if( zEnd == zPtr ){
					break;
				}
			}
			if( zEnd <= zCur ){
				/* Return the empty string */
				jx9_result_string(pCtx, "", 0);
			}else{
				zEnd++;
				jx9_result_string(pCtx, zCur, (int)(zEnd-zCur));
			}
		}
	}
	return JX9_OK;
}
/*
 * string ltrim(string $str[, string $charlist ])
 *  Strip whitespace (or other characters) from the beginning and end of a string.
 * Parameters
 *  $str
 *   The string that will be trimmed.
 * $charlist
 *   Optionally, the stripped characters can also be specified using the charlist parameter.
 *   Simply list all characters that you want to be stripped.
 *   With .. you can specify a range of characters.
 * Returns.
 *  The processed string.
 */
static int jx9Builtin_ltrim(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string, return */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Start the trim process */
	if( nArg < 2 ){
		SyString sStr;
		/* Remove white spaces and NUL byte */
		SyStringInitFromBuf(&sStr, zString, nLen);
		SyStringLeftTrimSafe(&sStr);
		jx9_result_string(pCtx, sStr.zString, (int)sStr.nByte);
	}else{
		/* Char list */
		const char *zList;
		int nListlen;
		zList = jx9_value_to_string(apArg[1], &nListlen);
		if( nListlen < 1 ){
			/* Return the string unchanged */
			jx9_result_string(pCtx, zString, nLen);
		}else{
			const char *zEnd = &zString[nLen];
			const char *zCur = zString;
			const char *zPtr;
			int i;
			/* Left trim */
			for(;;){
				if( zCur >= zEnd ){
					break;
				}
				zPtr = zCur;
				for( i = 0 ; i < nListlen ; i++ ){
					if( zCur < zEnd && zCur[0] == zList[i] ){
						zCur++;
					}
				}
				if( zCur == zPtr ){
					/* No match, break immediately */
					break;
				}
			}
			if( zCur >= zEnd ){
				/* Return the empty string */
				jx9_result_string(pCtx, "", 0);
			}else{
				jx9_result_string(pCtx, zCur, (int)(zEnd-zCur));
			}
		}
	}
	return JX9_OK;
}
/*
 * string strtolower(string $str)
 *  Make a string lowercase.
 * Parameters
 *  $str
 *   The input string.
 * Returns.
 *  The lowercased string.
 */
static int jx9Builtin_strtolower(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString, *zCur, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string, return */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	zEnd = &zString[nLen];
	for(;;){
		if( zString >= zEnd ){
			/* No more input, break immediately */
			break;
		}
		if( (unsigned char)zString[0] >= 0xc0 ){
			/* UTF-8 stream, output verbatim */
			zCur = zString;
			zString++;
			while( zString < zEnd && ((unsigned char)zString[0] & 0xc0) == 0x80){
				zString++;
			}
			/* Append UTF-8 stream */
			jx9_result_string(pCtx, zCur, (int)(zString-zCur));
		}else{
			int c = zString[0];
			if( SyisUpper(c) ){
				c = SyToLower(zString[0]);
			}
			/* Append character */
			jx9_result_string(pCtx, (const char *)&c, (int)sizeof(char));
			/* Advance the cursor */
			zString++;
		}
	}
	return JX9_OK;
}
/*
 * string strtolower(string $str)
 *  Make a string uppercase.
 * Parameters
 *  $str
 *   The input string.
 * Returns.
 *  The uppercased string.
 */
static int jx9Builtin_strtoupper(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString, *zCur, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string, return */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	zEnd = &zString[nLen];
	for(;;){
		if( zString >= zEnd ){
			/* No more input, break immediately */
			break;
		}
		if( (unsigned char)zString[0] >= 0xc0 ){
			/* UTF-8 stream, output verbatim */
			zCur = zString;
			zString++;
			while( zString < zEnd && ((unsigned char)zString[0] & 0xc0) == 0x80){
				zString++;
			}
			/* Append UTF-8 stream */
			jx9_result_string(pCtx, zCur, (int)(zString-zCur));
		}else{
			int c = zString[0];
			if( SyisLower(c) ){
				c = SyToUpper(zString[0]);
			}
			/* Append character */
			jx9_result_string(pCtx, (const char *)&c, (int)sizeof(char));
			/* Advance the cursor */
			zString++;
		}
	}
	return JX9_OK;
}
/*
 * int ord(string $string)
 *  Returns the ASCII value of the first character of string.
 * Parameters
 *  $str
 *   The input string.
 * Returns.
 *  The ASCII value as an integer.
 */
static int jx9Builtin_ord(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString;
	int nLen, c;
	if( nArg < 1 ){
		/* Missing arguments, return -1 */
		jx9_result_int(pCtx, -1);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string, return -1 */
		jx9_result_int(pCtx, -1);
		return JX9_OK;
	}
	/* Extract the ASCII value of the first character */
	c = zString[0];
	/* Return that value */
	jx9_result_int(pCtx, c);
	return JX9_OK;
}
/*
 * string chr(int $ascii)
 *  Returns a one-character string containing the character specified by ascii.
 * Parameters
 *  $ascii
 *   The ascii code.
 * Returns.
 *  The specified character.
 */
static int jx9Builtin_chr(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int c;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the ASCII value */
	c = jx9_value_to_int(apArg[0]);
	/* Return the specified character */
	jx9_result_string(pCtx, (const char *)&c, (int)sizeof(char));
	return JX9_OK;
}
/*
 * Binary to hex consumer callback.
 * This callback is the default consumer used by the hash functions
 * [i.e: bin2hex(), md5(), sha1(), md5_file() ... ] defined below.
 */
static int HashConsumer(const void *pData, unsigned int nLen, void *pUserData)
{
	/* Append hex chunk verbatim */
	jx9_result_string((jx9_context *)pUserData, (const char *)pData, (int)nLen);
	return SXRET_OK;
}
/*
 * string bin2hex(string $str)
 *  Convert binary data into hexadecimal representation.
 * Parameters
 *  $str
 *   The input string.
 * Returns.
 *  Returns the hexadecimal representation of the given string.
 */
static int jx9Builtin_bin2hex(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string, return */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	SyBinToHexConsumer((const void *)zString, (sxu32)nLen, HashConsumer, pCtx);
	return JX9_OK;
}
/* Search callback signature */
typedef sxi32 (*ProcStringMatch)(const void *, sxu32, const void *, sxu32, sxu32 *);
/*
 * Case-insensitive pattern match.
 * Brute force is the default search method used here.
 * This is due to the fact that brute-forcing works quite
 * well for short/medium texts on modern hardware.
 */
static sxi32 iPatternMatch(const void *pText, sxu32 nLen, const void *pPattern, sxu32 iPatLen, sxu32 *pOfft)
{
	const char *zpIn = (const char *)pPattern;
	const char *zIn = (const char *)pText;
	const char *zpEnd = &zpIn[iPatLen];
	const char *zEnd = &zIn[nLen];
	const char *zPtr, *zPtr2;
	int c, d;
	if( iPatLen > nLen ){
		/* Don't bother processing */
		return SXERR_NOTFOUND;
	}
	for(;;){
		if( zIn >= zEnd ){
			break;
		}
		c = SyToLower(zIn[0]);
		d = SyToLower(zpIn[0]);
		if( c == d ){
			zPtr   = &zIn[1];
			zPtr2  = &zpIn[1];
			for(;;){
				if( zPtr2 >= zpEnd ){
					/* Pattern found */
					if( pOfft ){ *pOfft = (sxu32)(zIn-(const char *)pText); }
					return SXRET_OK;
				}
				if( zPtr >= zEnd ){
					break;
				}
				c = SyToLower(zPtr[0]);
				d = SyToLower(zPtr2[0]);
				if( c != d ){
					break;
				}
				zPtr++; zPtr2++;
			}
		}
		zIn++;
	}
	/* Pattern not found */
	return SXERR_NOTFOUND;
}
/*
 * string strstr(string $haystack, string $needle[, bool $before_needle = false ])
 *  Find the first occurrence of a string.
 * Parameters
 *  $haystack
 *   The input string.
 * $needle
 *   Search pattern (must be a string).
 * $before_needle
 *   If TRUE, strstr() returns the part of the haystack before the first occurrence 
 *   of the needle (excluding the needle).
 * Return
 *  Returns the portion of string, or FALSE if needle is not found.
 */
static int jx9Builtin_strstr(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	ProcStringMatch xPatternMatch = SyBlobSearch; /* Case-sensitive pattern match */
	const char *zBlob, *zPattern;
	int nLen, nPatLen;
	sxu32 nOfft;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the needle and the haystack */
	zBlob = jx9_value_to_string(apArg[0], &nLen);
	zPattern = jx9_value_to_string(apArg[1], &nPatLen);
	nOfft = 0; /* cc warning */
	if( nLen > 0 && nPatLen > 0 ){
		int before = 0;
		/* Perform the lookup */
		rc = xPatternMatch(zBlob, (sxu32)nLen, zPattern, (sxu32)nPatLen, &nOfft);
		if( rc != SXRET_OK ){
			/* Pattern not found, return FALSE */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		/* Return the portion of the string */
		if( nArg > 2 ){
			before = jx9_value_to_int(apArg[2]);
		}
		if( before ){
			jx9_result_string(pCtx, zBlob, (int)(&zBlob[nOfft]-zBlob));
		}else{
			jx9_result_string(pCtx, &zBlob[nOfft], (int)(&zBlob[nLen]-&zBlob[nOfft]));
		}
	}else{
		jx9_result_bool(pCtx, 0);
	}
	return JX9_OK;
}
/*
 * string stristr(string $haystack, string $needle[, bool $before_needle = false ])
 *  Case-insensitive strstr().
 * Parameters
 *  $haystack
 *   The input string.
 * $needle
 *   Search pattern (must be a string).
 * $before_needle
 *   If TRUE, strstr() returns the part of the haystack before the first occurrence 
 *   of the needle (excluding the needle).
 * Return
 *  Returns the portion of string, or FALSE if needle is not found.
 */
static int jx9Builtin_stristr(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	ProcStringMatch xPatternMatch = iPatternMatch; /* Case-insensitive pattern match */
	const char *zBlob, *zPattern;
	int nLen, nPatLen;
	sxu32 nOfft;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the needle and the haystack */
	zBlob = jx9_value_to_string(apArg[0], &nLen);
	zPattern = jx9_value_to_string(apArg[1], &nPatLen);
	nOfft = 0; /* cc warning */
	if( nLen > 0 && nPatLen > 0 ){
		int before = 0;
		/* Perform the lookup */
		rc = xPatternMatch(zBlob, (sxu32)nLen, zPattern, (sxu32)nPatLen, &nOfft);
		if( rc != SXRET_OK ){
			/* Pattern not found, return FALSE */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		/* Return the portion of the string */
		if( nArg > 2 ){
			before = jx9_value_to_int(apArg[2]);
		}
		if( before ){
			jx9_result_string(pCtx, zBlob, (int)(&zBlob[nOfft]-zBlob));
		}else{
			jx9_result_string(pCtx, &zBlob[nOfft], (int)(&zBlob[nLen]-&zBlob[nOfft]));
		}
	}else{
		jx9_result_bool(pCtx, 0);
	}
	return JX9_OK;
}
/*
 * int strpos(string $haystack, string $needle [, int $offset = 0 ] )
 *  Returns the numeric position of the first occurrence of needle in the haystack string.
 * Parameters
 *  $haystack
 *   The input string.
 * $needle
 *   Search pattern (must be a string).
 * $offset
 *   This optional offset parameter allows you to specify which character in haystack
 *   to start searching. The position returned is still relative to the beginning
 *   of haystack.
 * Return
 *  Returns the position as an integer.If needle is not found, strpos() will return FALSE.
 */
static int jx9Builtin_strpos(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	ProcStringMatch xPatternMatch = SyBlobSearch; /* Case-sensitive pattern match */
	const char *zBlob, *zPattern;
	int nLen, nPatLen, nStart;
	sxu32 nOfft;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the needle and the haystack */
	zBlob = jx9_value_to_string(apArg[0], &nLen);
	zPattern = jx9_value_to_string(apArg[1], &nPatLen);
	nOfft = 0; /* cc warning */
	nStart = 0;
	/* Peek the starting offset if available */
	if( nArg > 2 ){
		nStart = jx9_value_to_int(apArg[2]);
		if( nStart < 0 ){
			nStart = -nStart;
		}
		if( nStart >= nLen ){
			/* Invalid offset */
			nStart = 0;
		}else{
			zBlob += nStart;
			nLen -= nStart;
		}
	}
	if( nLen > 0 && nPatLen > 0 ){
		/* Perform the lookup */
		rc = xPatternMatch(zBlob, (sxu32)nLen, zPattern, (sxu32)nPatLen, &nOfft);
		if( rc != SXRET_OK ){
			/* Pattern not found, return FALSE */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		/* Return the pattern position */
		jx9_result_int64(pCtx, (jx9_int64)(nOfft+nStart));
	}else{
		jx9_result_bool(pCtx, 0);
	}
	return JX9_OK;
}
/*
 * int stripos(string $haystack, string $needle [, int $offset = 0 ] )
 *  Case-insensitive strpos.
 * Parameters
 *  $haystack
 *   The input string.
 * $needle
 *   Search pattern (must be a string).
 * $offset
 *   This optional offset parameter allows you to specify which character in haystack
 *   to start searching. The position returned is still relative to the beginning
 *   of haystack.
 * Return
 *  Returns the position as an integer.If needle is not found, strpos() will return FALSE.
 */
static int jx9Builtin_stripos(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	ProcStringMatch xPatternMatch = iPatternMatch; /* Case-insensitive pattern match */
	const char *zBlob, *zPattern;
	int nLen, nPatLen, nStart;
	sxu32 nOfft;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the needle and the haystack */
	zBlob = jx9_value_to_string(apArg[0], &nLen);
	zPattern = jx9_value_to_string(apArg[1], &nPatLen);
	nOfft = 0; /* cc warning */
	nStart = 0;
	/* Peek the starting offset if available */
	if( nArg > 2 ){
		nStart = jx9_value_to_int(apArg[2]);
		if( nStart < 0 ){
			nStart = -nStart;
		}
		if( nStart >= nLen ){
			/* Invalid offset */
			nStart = 0;
		}else{
			zBlob += nStart;
			nLen -= nStart;
		}
	}
	if( nLen > 0 && nPatLen > 0 ){
		/* Perform the lookup */
		rc = xPatternMatch(zBlob, (sxu32)nLen, zPattern, (sxu32)nPatLen, &nOfft);
		if( rc != SXRET_OK ){
			/* Pattern not found, return FALSE */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		/* Return the pattern position */
		jx9_result_int64(pCtx, (jx9_int64)(nOfft+nStart));
	}else{
		jx9_result_bool(pCtx, 0);
	}
	return JX9_OK;
}
/*
 * int strrpos(string $haystack, string $needle [, int $offset = 0 ] )
 *  Find the numeric position of the last occurrence of needle in the haystack string.
 * Parameters
 *  $haystack
 *   The input string.
 * $needle
 *   Search pattern (must be a string).
 * $offset
 *   If specified, search will start this number of characters counted from the beginning
 *   of the string. If the value is negative, search will instead start from that many 
 *   characters from the end of the string, searching backwards.
 * Return
 *  Returns the position as an integer.If needle is not found, strrpos() will return FALSE.
 */
static int jx9Builtin_strrpos(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zStart, *zBlob, *zPattern, *zPtr, *zEnd;
	ProcStringMatch xPatternMatch = SyBlobSearch; /* Case-sensitive pattern match */
	int nLen, nPatLen;
	sxu32 nOfft;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the needle and the haystack */
	zBlob = jx9_value_to_string(apArg[0], &nLen);
	zPattern = jx9_value_to_string(apArg[1], &nPatLen);
	/* Point to the end of the pattern */
	zPtr = &zBlob[nLen - 1];
	zEnd = &zBlob[nLen];
	/* Save the starting posistion */
	zStart = zBlob;
	nOfft = 0; /* cc warning */
	/* Peek the starting offset if available */
	if( nArg > 2 ){
		int nStart;
		nStart = jx9_value_to_int(apArg[2]);
		if( nStart < 0 ){
			nStart = -nStart;
			if( nStart >= nLen ){
				/* Invalid offset */
				jx9_result_bool(pCtx, 0);
				return JX9_OK;
			}else{
				nLen -= nStart;
				zPtr = &zBlob[nLen - 1];
				zEnd = &zBlob[nLen];
			}
		}else{
			if( nStart >= nLen ){
				/* Invalid offset */
				jx9_result_bool(pCtx, 0);
				return JX9_OK;
			}else{
				zBlob += nStart;
				nLen -= nStart;
			}
		}
	}
	if( nLen > 0 && nPatLen > 0 ){
		/* Perform the lookup */
		for(;;){
			if( zBlob >= zPtr ){
				break;
			}
			rc = xPatternMatch((const void *)zPtr, (sxu32)(zEnd-zPtr), (const void *)zPattern, (sxu32)nPatLen, &nOfft);
			if( rc == SXRET_OK ){
				/* Pattern found, return it's position */
				jx9_result_int64(pCtx, (jx9_int64)(&zPtr[nOfft] - zStart));
				return JX9_OK;
			}
			zPtr--;
		}
		/* Pattern not found, return FALSE */
		jx9_result_bool(pCtx, 0);
	}else{
		jx9_result_bool(pCtx, 0);
	}
	return JX9_OK;
}
/*
 * int strripos(string $haystack, string $needle [, int $offset = 0 ] )
 *  Case-insensitive strrpos.
 * Parameters
 *  $haystack
 *   The input string.
 * $needle
 *   Search pattern (must be a string).
 * $offset
 *   If specified, search will start this number of characters counted from the beginning
 *   of the string. If the value is negative, search will instead start from that many 
 *   characters from the end of the string, searching backwards.
 * Return
 *  Returns the position as an integer.If needle is not found, strrpos() will return FALSE.
 */
static int jx9Builtin_strripos(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zStart, *zBlob, *zPattern, *zPtr, *zEnd;
	ProcStringMatch xPatternMatch = iPatternMatch; /* Case-insensitive pattern match */
	int nLen, nPatLen;
	sxu32 nOfft;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the needle and the haystack */
	zBlob = jx9_value_to_string(apArg[0], &nLen);
	zPattern = jx9_value_to_string(apArg[1], &nPatLen);
	/* Point to the end of the pattern */
	zPtr = &zBlob[nLen - 1];
	zEnd = &zBlob[nLen];
	/* Save the starting posistion */
	zStart = zBlob;
	nOfft = 0; /* cc warning */
	/* Peek the starting offset if available */
	if( nArg > 2 ){
		int nStart;
		nStart = jx9_value_to_int(apArg[2]);
		if( nStart < 0 ){
			nStart = -nStart;
			if( nStart >= nLen ){
				/* Invalid offset */
				jx9_result_bool(pCtx, 0);
				return JX9_OK;
			}else{
				nLen -= nStart;
				zPtr = &zBlob[nLen - 1];
				zEnd = &zBlob[nLen];
			}
		}else{
			if( nStart >= nLen ){
				/* Invalid offset */
				jx9_result_bool(pCtx, 0);
				return JX9_OK;
			}else{
				zBlob += nStart;
				nLen -= nStart;
			}
		}
	}
	if( nLen > 0 && nPatLen > 0 ){
		/* Perform the lookup */
		for(;;){
			if( zBlob >= zPtr ){
				break;
			}
			rc = xPatternMatch((const void *)zPtr, (sxu32)(zEnd-zPtr), (const void *)zPattern, (sxu32)nPatLen, &nOfft);
			if( rc == SXRET_OK ){
				/* Pattern found, return it's position */
				jx9_result_int64(pCtx, (jx9_int64)(&zPtr[nOfft] - zStart));
				return JX9_OK;
			}
			zPtr--;
		}
		/* Pattern not found, return FALSE */
		jx9_result_bool(pCtx, 0);
	}else{
		jx9_result_bool(pCtx, 0);
	}
	return JX9_OK;
}
/*
 * int strrchr(string $haystack, mixed $needle)
 *  Find the last occurrence of a character in a string.
 * Parameters
 *  $haystack
 *   The input string.
 * $needle
 *  If needle contains more than one character, only the first is used.
 *  This behavior is different from that of strstr().
 *  If needle is not a string, it is converted to an integer and applied
 *  as the ordinal value of a character.
 * Return
 *  This function returns the portion of string, or FALSE if needle is not found.
 */
static int jx9Builtin_strrchr(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zBlob;
	int nLen, c;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the haystack */
	zBlob = jx9_value_to_string(apArg[0], &nLen);
	c = 0; /* cc warning */
	if( nLen > 0 ){
		sxu32 nOfft;
		sxi32 rc;
		if( jx9_value_is_string(apArg[1]) ){
			const char *zPattern;
			zPattern = jx9_value_to_string(apArg[1], 0); /* Never fail, so there is no need to check
														 * for NULL pointer.
														 */
			c = zPattern[0];
		}else{
			/* Int cast */
			c = jx9_value_to_int(apArg[1]);
		}
		/* Perform the lookup */
		rc = SyByteFind2(zBlob, (sxu32)nLen, c, &nOfft);
		if( rc != SXRET_OK ){
			/* No such entry, return FALSE */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		/* Return the string portion */
		jx9_result_string(pCtx, &zBlob[nOfft], (int)(&zBlob[nLen]-&zBlob[nOfft]));
	}else{
		jx9_result_bool(pCtx, 0);
	}
	return JX9_OK;
}
/*
 * string strrev(string $string)
 *  Reverse a string.
 * Parameters
 *  $string
 *   String to be reversed.
 * Return
 *  The reversed string.
 */
static int jx9Builtin_strrev(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn, *zEnd;
	int nLen, c;
	if( nArg < 1 ){
		/* Missing arguments, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string Return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Perform the requested operation */
	zEnd = &zIn[nLen - 1];
	for(;;){
		if( zEnd < zIn ){
			/* No more input to process */
			break;
		}
		/* Append current character */
		c = zEnd[0];
		jx9_result_string(pCtx, (const char *)&c, (int)sizeof(char));
		zEnd--;
	}
	return JX9_OK;
}
/*
 * string str_repeat(string $input, int $multiplier)
 *  Returns input repeated multiplier times.
 * Parameters
 *  $string
 *   String to be repeated.
 * $multiplier
 *  Number of time the input string should be repeated.
 *  multiplier has to be greater than or equal to 0. If the multiplier is set
 *  to 0, the function will return an empty string.
 * Return
 *  The repeated string.
 */
static int jx9Builtin_str_repeat(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn;
	int nLen, nMul;
	int rc;
	if( nArg < 2 ){
		/* Missing arguments, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string.Return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the multiplier */
	nMul = jx9_value_to_int(apArg[1]);
	if( nMul < 1 ){
		/* Return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( nMul < 1 ){
			break;
		}
		/* Append the copy */
		rc = jx9_result_string(pCtx, zIn, nLen);
		if( rc != JX9_OK ){
			/* Out of memory, break immediately */
			break;
		}
		nMul--;
	}
	return JX9_OK;
}
/*
 * string nl2br(string $string[, bool $is_xhtml = true ])
 *  Inserts HTML line breaks before all newlines in a string.
 * Parameters
 *  $string
 *   The input string.
 * $is_xhtml
 *   Whenever to use XHTML compatible line breaks or not.
 * Return
 *  The processed string.
 */
static int jx9Builtin_nl2br(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn, *zCur, *zEnd;
	int is_xhtml = 0;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	if( nArg > 1 ){
		is_xhtml = jx9_value_to_bool(apArg[1]);
	}
	zEnd = &zIn[nLen];
	/* Perform the requested operation */
	for(;;){
		zCur = zIn;
		/* Delimit the string */
		while( zIn < zEnd && (zIn[0] != '\n'&& zIn[0] != '\r') ){
			zIn++;
		}
		if( zCur < zIn ){
			/* Output chunk verbatim */
			jx9_result_string(pCtx, zCur, (int)(zIn-zCur));
		}
		if( zIn >= zEnd ){
			/* No more input to process */
			break;
		}
		/* Output the HTML line break */
		if( is_xhtml ){
			jx9_result_string(pCtx, "<br>", (int)sizeof("<br>")-1);
		}else{
			jx9_result_string(pCtx, "<br/>", (int)sizeof("<br/>")-1);
		}
		zCur = zIn;
		/* Append trailing line */
		while( zIn < zEnd && (zIn[0] == '\n'  || zIn[0] == '\r') ){
			zIn++;
		}
		if( zCur < zIn ){
			/* Output chunk verbatim */
			jx9_result_string(pCtx, zCur, (int)(zIn-zCur));
		}
	}
	return JX9_OK;
}
/*
 * Format a given string and invoke the given callback on each processed chunk.
 *  According to the JX9 reference manual.
 * The format string is composed of zero or more directives: ordinary characters
 * (excluding %) that are copied directly to the result, and conversion 
 * specifications, each of which results in fetching its own parameter.
 * This applies to both sprintf() and printf().
 * Each conversion specification consists of a percent sign (%), followed by one
 * or more of these elements, in order:
 *   An optional sign specifier that forces a sign (- or +) to be used on a number.
 *   By default, only the - sign is used on a number if it's negative. This specifier forces
 *   positive numbers to have the + sign attached as well.
 *   An optional padding specifier that says what character will be used for padding
 *   the results to the right string size. This may be a space character or a 0 (zero character).
 *   The default is to pad with spaces. An alternate padding character can be specified by prefixing
 *   it with a single quote ('). See the examples below.
 *   An optional alignment specifier that says if the result should be left-justified or right-justified.
 *   The default is right-justified; a - character here will make it left-justified.
 *   An optional number, a width specifier that says how many characters (minimum) this conversion
 *   should result in.
 *   An optional precision specifier in the form of a period (`.') followed by an optional decimal
 *   digit string that says how many decimal digits should be displayed for floating-point numbers.
 *   When using this specifier on a string, it acts as a cutoff point, setting a maximum character
 *   limit to the string.
 *  A type specifier that says what type the argument data should be treated as. Possible types:
 *       % - a literal percent character. No argument is required.
 *       b - the argument is treated as an integer, and presented as a binary number.
 *       c - the argument is treated as an integer, and presented as the character with that ASCII value.
 *       d - the argument is treated as an integer, and presented as a (signed) decimal number.
 *       e - the argument is treated as scientific notation (e.g. 1.2e+2). The precision specifier stands 
 * 	     for the number of digits after the decimal point.
 *       E - like %e but uses uppercase letter (e.g. 1.2E+2).
 *       u - the argument is treated as an integer, and presented as an unsigned decimal number.
 *       f - the argument is treated as a float, and presented as a floating-point number (locale aware).
 *       F - the argument is treated as a float, and presented as a floating-point number (non-locale aware).
 *       g - shorter of %e and %f.
 *       G - shorter of %E and %f.
 *       o - the argument is treated as an integer, and presented as an octal number.
 *       s - the argument is treated as and presented as a string.
 *       x - the argument is treated as an integer and presented as a hexadecimal number (with lowercase letters).
 *       X - the argument is treated as an integer and presented as a hexadecimal number (with uppercase letters).
 */
/*
 * This implementation is based on the one found in the SQLite3 source tree.
 */
#define JX9_FMT_BUFSIZ 1024 /* Conversion buffer size */
/*
** Conversion types fall into various categories as defined by the
** following enumeration.
*/
#define JX9_FMT_RADIX       1 /* Integer types.%d, %x, %o, and so forth */
#define JX9_FMT_FLOAT       2 /* Floating point.%f */
#define JX9_FMT_EXP         3 /* Exponentional notation.%e and %E */
#define JX9_FMT_GENERIC     4 /* Floating or exponential, depending on exponent.%g */
#define JX9_FMT_SIZE        5 /* Total number of characters processed so far.%n */
#define JX9_FMT_STRING      6 /* Strings.%s */
#define JX9_FMT_PERCENT     7 /* Percent symbol.%% */
#define JX9_FMT_CHARX       8 /* Characters.%c */
#define JX9_FMT_ERROR       9 /* Used to indicate no such conversion type */
/*
** Allowed values for jx9_fmt_info.flags
*/
#define JX9_FMT_FLAG_SIGNED	  0x01
#define JX9_FMT_FLAG_UNSIGNED 0x02
/*
** Each builtin conversion character (ex: the 'd' in "%d") is described
** by an instance of the following structure
*/
typedef struct jx9_fmt_info jx9_fmt_info;
struct jx9_fmt_info
{
  char fmttype;  /* The format field code letter [i.e: 'd', 's', 'x'] */
  sxu8 base;     /* The base for radix conversion */
  int flags;    /* One or more of JX9_FMT_FLAG_ constants below */
  sxu8 type;     /* Conversion paradigm */
  char *charset; /* The character set for conversion */
  char *prefix;  /* Prefix on non-zero values in alt format */
};
#ifndef JX9_OMIT_FLOATING_POINT
/*
** "*val" is a double such that 0.1 <= *val < 10.0
** Return the ascii code for the leading digit of *val, then
** multiply "*val" by 10.0 to renormalize.
**
** Example:
**     input:     *val = 3.14159
**     output:    *val = 1.4159    function return = '3'
**
** The counter *cnt is incremented each time.  After counter exceeds
** 16 (the number of significant digits in a 64-bit float) '0' is
** always returned.
*/
static int vxGetdigit(sxlongreal *val, int *cnt)
{
  sxlongreal d;
  int digit;

  if( (*cnt)++ >= 16 ){
	  return '0';
  }
  digit = (int)*val;
  d = digit;
   *val = (*val - d)*10.0;
  return digit + '0' ;
}
#endif /* JX9_OMIT_FLOATING_POINT */
/*
 * The following table is searched linearly, so it is good to put the most frequently
 * used conversion types first.
 */
static const jx9_fmt_info aFmt[] = {
  {  'd', 10, JX9_FMT_FLAG_SIGNED, JX9_FMT_RADIX, "0123456789", 0    }, 
  {  's',  0, 0, JX9_FMT_STRING,     0,                  0    }, 
  {  'c',  0, 0, JX9_FMT_CHARX,      0,                  0    }, 
  {  'x', 16, 0, JX9_FMT_RADIX,      "0123456789abcdef", "x0" }, 
  {  'X', 16, 0, JX9_FMT_RADIX,      "0123456789ABCDEF", "X0" }, 
  {  'b',  2, 0, JX9_FMT_RADIX,      "01",                "b0"}, 
  {  'o',  8, 0, JX9_FMT_RADIX,      "01234567",         "0"  }, 
  {  'u', 10, 0, JX9_FMT_RADIX,      "0123456789",       0    }, 
  {  'f',  0, JX9_FMT_FLAG_SIGNED, JX9_FMT_FLOAT,        0,    0    }, 
  {  'F',  0, JX9_FMT_FLAG_SIGNED, JX9_FMT_FLOAT,        0,    0    }, 
  {  'e',  0, JX9_FMT_FLAG_SIGNED, JX9_FMT_EXP,        "e",    0    }, 
  {  'E',  0, JX9_FMT_FLAG_SIGNED, JX9_FMT_EXP,        "E",    0    }, 
  {  'g',  0, JX9_FMT_FLAG_SIGNED, JX9_FMT_GENERIC,    "e",    0    }, 
  {  'G',  0, JX9_FMT_FLAG_SIGNED, JX9_FMT_GENERIC,    "E",    0    }, 
  {  '%',  0, 0, JX9_FMT_PERCENT,    0,                  0    }
};
/*
 * Format a given string.
 * The root program.  All variations call this core.
 * INPUTS:
 *   xConsumer   This is a pointer to a function taking four arguments
 *            1. A pointer to the call context.
 *            2. A pointer to the list of characters to be output
 *               (Note, this list is NOT null terminated.)
 *            3. An integer number of characters to be output.
 *               (Note: This number might be zero.)
 *            4. Upper layer private data.
 *   zIn       This is the format string, as in the usual print.
 *   apArg     This is a pointer to a list of arguments.
 */
JX9_PRIVATE sxi32 jx9InputFormat(
	int (*xConsumer)(jx9_context *, const char *, int, void *), /* Format consumer */
	jx9_context *pCtx,  /* call context */
	const char *zIn,    /* Format string */
	int nByte,          /* Format string length */
	int nArg,           /* Total argument of the given arguments */
	jx9_value **apArg,  /* User arguments */
	void *pUserData,    /* Last argument to xConsumer() */
	int vf              /* TRUE if called from vfprintf, vsprintf context */ 
	)
{
	char spaces[] = "                                                  ";
#define etSPACESIZE ((int)sizeof(spaces)-1)
	const char *zCur, *zEnd = &zIn[nByte];
	char *zBuf, zWorker[JX9_FMT_BUFSIZ];       /* Working buffer */
	const jx9_fmt_info *pInfo;  /* Pointer to the appropriate info structure */
	int flag_alternateform; /* True if "#" flag is present */
	int flag_leftjustify;   /* True if "-" flag is present */
	int flag_blanksign;     /* True if " " flag is present */
	int flag_plussign;      /* True if "+" flag is present */
	int flag_zeropad;       /* True if field width constant starts with zero */
	jx9_value *pArg;         /* Current processed argument */
	jx9_int64 iVal;
	int precision;           /* Precision of the current field */
	char *zExtra;  
	int c, rc, n;
	int length;              /* Length of the field */
	int prefix;
	sxu8 xtype;              /* Conversion paradigm */
	int width;               /* Width of the current field */
	int idx;
	n = (vf == TRUE) ? 0 : 1;
#define NEXT_ARG	( n < nArg ? apArg[n++] : 0 )
	/* Start the format process */
	for(;;){
		zCur = zIn;
		while( zIn < zEnd && zIn[0] != '%' ){
			zIn++;
		}
		if( zCur < zIn ){
			/* Consume chunk verbatim */
			rc = xConsumer(pCtx, zCur, (int)(zIn-zCur), pUserData);
			if( rc == SXERR_ABORT ){
				/* Callback request an operation abort */
				break;
			}
		}
		if( zIn >= zEnd ){
			/* No more input to process, break immediately */
			break;
		}
		/* Find out what flags are present */
		flag_leftjustify = flag_plussign = flag_blanksign = 
			flag_alternateform = flag_zeropad = 0;
		zIn++; /* Jump the precent sign */
		do{
			c = zIn[0];
			switch( c ){
			case '-':   flag_leftjustify = 1;     c = 0;   break;
			case '+':   flag_plussign = 1;        c = 0;   break;
			case ' ':   flag_blanksign = 1;       c = 0;   break;
			case '#':   flag_alternateform = 1;   c = 0;   break;
			case '0':   flag_zeropad = 1;         c = 0;   break;
			case '\'':
				zIn++;
				if( zIn < zEnd ){
					/* An alternate padding character can be specified by prefixing it with a single quote (') */
					c = zIn[0];
					for(idx = 0 ; idx < etSPACESIZE ; ++idx ){
						spaces[idx] = (char)c;
					}
					c = 0;
				}
				break;
			default:                                       break;
			}
		}while( c==0 && (zIn++ < zEnd) );
		/* Get the field width */
		width = 0;
		while( zIn < zEnd && ( zIn[0] >='0' && zIn[0] <='9') ){
			width = width*10 + (zIn[0] - '0');
			zIn++;
		}
		if( zIn < zEnd && zIn[0] == '$' ){
			/* Position specifer */
			if( width > 0 ){
				n = width;
				if( vf && n > 0 ){ 
					n--;
				}
			}
			zIn++;
			width = 0;
			if( zIn < zEnd && zIn[0] == '0' ){
				flag_zeropad = 1;
				zIn++;
			}
			while( zIn < zEnd && ( zIn[0] >='0' && zIn[0] <='9') ){
				width = width*10 + (zIn[0] - '0');
				zIn++;
			}
		}
		if( width > JX9_FMT_BUFSIZ-10 ){
			width = JX9_FMT_BUFSIZ-10;
		}
		/* Get the precision */
		precision = -1;
		if( zIn < zEnd && zIn[0] == '.' ){
			precision = 0;
			zIn++;
			while( zIn < zEnd && ( zIn[0] >='0' && zIn[0] <='9') ){
				precision = precision*10 + (zIn[0] - '0');
				zIn++;
			}
		}
		if( zIn >= zEnd ){
			/* No more input */
			break;
		}
		/* Fetch the info entry for the field */
		pInfo = 0;
		xtype = JX9_FMT_ERROR;
		c = zIn[0];
		zIn++; /* Jump the format specifer */
		for(idx=0; idx< (int)SX_ARRAYSIZE(aFmt); idx++){
			if( c==aFmt[idx].fmttype ){
				pInfo = &aFmt[idx];
				xtype = pInfo->type;
				break;
			}
		}
		zBuf = zWorker; /* Point to the working buffer */
		length = 0;
		zExtra = 0;
		 /*
		  ** At this point, variables are initialized as follows:
		  **
		  **   flag_alternateform          TRUE if a '#' is present.
		  **   flag_plussign               TRUE if a '+' is present.
		  **   flag_leftjustify            TRUE if a '-' is present or if the
		  **                               field width was negative.
		  **   flag_zeropad                TRUE if the width began with 0.
		  **                               the conversion character.
		  **   flag_blanksign              TRUE if a ' ' is present.
		  **   width                       The specified field width.  This is
		  **                               always non-negative.  Zero is the default.
		  **   precision                   The specified precision.  The default
		  **                               is -1.
		  */
		switch(xtype){
		case JX9_FMT_PERCENT:
			/* A literal percent character */
			zWorker[0] = '%';
			length = (int)sizeof(char);
			break;
		case JX9_FMT_CHARX:
			/* The argument is treated as an integer, and presented as the character
			 * with that ASCII value
			 */
			pArg = NEXT_ARG;
			if( pArg == 0 ){
				c = 0;
			}else{
				c = jx9_value_to_int(pArg);
			}
			/* NUL byte is an acceptable value */
			zWorker[0] = (char)c;
			length = (int)sizeof(char);
			break;
		case JX9_FMT_STRING:
			/* the argument is treated as and presented as a string */
			pArg = NEXT_ARG;
			if( pArg == 0 ){
				length = 0;
			}else{
				zBuf = (char *)jx9_value_to_string(pArg, &length);
			}
			if( length < 1 ){
				zBuf = " ";
				length = (int)sizeof(char);
			}
			if( precision>=0 && precision<length ){
				length = precision;
			}
			if( flag_zeropad ){
				/* zero-padding works on strings too */
				for(idx = 0 ; idx < etSPACESIZE ; ++idx ){
					spaces[idx] = '0';
				}
			}
			break;
		case JX9_FMT_RADIX:
			pArg = NEXT_ARG;
			if( pArg == 0 ){
				iVal = 0;
			}else{
				iVal = jx9_value_to_int64(pArg);
			}
			/* Limit the precision to prevent overflowing buf[] during conversion */
			if( precision>JX9_FMT_BUFSIZ-40 ){
				precision = JX9_FMT_BUFSIZ-40;
			}
#if 1
        /* For the format %#x, the value zero is printed "0" not "0x0".
        ** I think this is stupid.*/
        if( iVal==0 ) flag_alternateform = 0;
#else
        /* More sensible: turn off the prefix for octal (to prevent "00"), 
        ** but leave the prefix for hex.*/
        if( iVal==0 && pInfo->base==8 ) flag_alternateform = 0;
#endif
        if( pInfo->flags & JX9_FMT_FLAG_SIGNED ){
          if( iVal<0 ){ 
            iVal = -iVal;
			/* Ticket 1433-003 */
			if( iVal < 0 ){
				/* Overflow */
				iVal= 0x7FFFFFFFFFFFFFFF;
			}
            prefix = '-';
          }else if( flag_plussign )  prefix = '+';
          else if( flag_blanksign )  prefix = ' ';
          else                       prefix = 0;
        }else{
			if( iVal<0 ){
				iVal = -iVal;
				/* Ticket 1433-003 */
				if( iVal < 0 ){
					/* Overflow */
					iVal= 0x7FFFFFFFFFFFFFFF;
				}
			}
			prefix = 0;
		}
        if( flag_zeropad && precision<width-(prefix!=0) ){
          precision = width-(prefix!=0);
        }
        zBuf = &zWorker[JX9_FMT_BUFSIZ-1];
        {
          register char *cset;      /* Use registers for speed */
          register int base;
          cset = pInfo->charset;
          base = pInfo->base;
          do{                                           /* Convert to ascii */
            *(--zBuf) = cset[iVal%base];
            iVal = iVal/base;
          }while( iVal>0 );
        }
        length = &zWorker[JX9_FMT_BUFSIZ-1]-zBuf;
        for(idx=precision-length; idx>0; idx--){
          *(--zBuf) = '0';                             /* Zero pad */
        }
        if( prefix ) *(--zBuf) = (char)prefix;               /* Add sign */
        if( flag_alternateform && pInfo->prefix ){      /* Add "0" or "0x" */
          char *pre, x;
          pre = pInfo->prefix;
          if( *zBuf!=pre[0] ){
            for(pre=pInfo->prefix; (x=(*pre))!=0; pre++) *(--zBuf) = x;
          }
        }
        length = &zWorker[JX9_FMT_BUFSIZ-1]-zBuf;
		break;
		case JX9_FMT_FLOAT:
		case JX9_FMT_EXP:
		case JX9_FMT_GENERIC:{
#ifndef JX9_OMIT_FLOATING_POINT
		long double realvalue;
		int  exp;                /* exponent of real numbers */
		double rounder;          /* Used for rounding floating point values */
		int flag_dp;            /* True if decimal point should be shown */
		int flag_rtz;           /* True if trailing zeros should be removed */
		int flag_exp;           /* True to force display of the exponent */
		int nsd;                 /* Number of significant digits returned */
		pArg = NEXT_ARG;
		if( pArg == 0 ){
			realvalue = 0;
		}else{
			realvalue = jx9_value_to_double(pArg);
		}
        if( precision<0 ) precision = 6;         /* Set default precision */
        if( precision>JX9_FMT_BUFSIZ-40) precision = JX9_FMT_BUFSIZ-40;
        if( realvalue<0.0 ){
          realvalue = -realvalue;
          prefix = '-';
        }else{
          if( flag_plussign )          prefix = '+';
          else if( flag_blanksign )    prefix = ' ';
          else                         prefix = 0;
        }
        if( pInfo->type==JX9_FMT_GENERIC && precision>0 ) precision--;
        rounder = 0.0;
#if 0
        /* Rounding works like BSD when the constant 0.4999 is used.Wierd! */
        for(idx=precision, rounder=0.4999; idx>0; idx--, rounder*=0.1);
#else
        /* It makes more sense to use 0.5 */
        for(idx=precision, rounder=0.5; idx>0; idx--, rounder*=0.1);
#endif
        if( pInfo->type==JX9_FMT_FLOAT ) realvalue += rounder;
        /* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
        exp = 0;
        if( realvalue>0.0 ){
          while( realvalue>=1e8 && exp<=350 ){ realvalue *= 1e-8; exp+=8; }
          while( realvalue>=10.0 && exp<=350 ){ realvalue *= 0.1; exp++; }
          while( realvalue<1e-8 && exp>=-350 ){ realvalue *= 1e8; exp-=8; }
          while( realvalue<1.0 && exp>=-350 ){ realvalue *= 10.0; exp--; }
          if( exp>350 || exp<-350 ){
            zBuf = "NaN";
            length = 3;
            break;
          }
        }
        zBuf = zWorker;
        /*
        ** If the field type is etGENERIC, then convert to either etEXP
        ** or etFLOAT, as appropriate.
        */
        flag_exp = xtype==JX9_FMT_EXP;
        if( xtype!=JX9_FMT_FLOAT ){
          realvalue += rounder;
          if( realvalue>=10.0 ){ realvalue *= 0.1; exp++; }
        }
        if( xtype==JX9_FMT_GENERIC ){
          flag_rtz = !flag_alternateform;
          if( exp<-4 || exp>precision ){
            xtype = JX9_FMT_EXP;
          }else{
            precision = precision - exp;
            xtype = JX9_FMT_FLOAT;
          }
        }else{
          flag_rtz = 0;
        }
        /*
        ** The "exp+precision" test causes output to be of type etEXP if
        ** the precision is too large to fit in buf[].
        */
        nsd = 0;
        if( xtype==JX9_FMT_FLOAT && exp+precision<JX9_FMT_BUFSIZ-30 ){
          flag_dp = (precision>0 || flag_alternateform);
          if( prefix ) *(zBuf++) = (char)prefix;         /* Sign */
          if( exp<0 )  *(zBuf++) = '0';            /* Digits before "." */
          else for(; exp>=0; exp--) *(zBuf++) = (char)vxGetdigit(&realvalue, &nsd);
          if( flag_dp ) *(zBuf++) = '.';           /* The decimal point */
          for(exp++; exp<0 && precision>0; precision--, exp++){
            *(zBuf++) = '0';
          }
          while( (precision--)>0 ) *(zBuf++) = (char)vxGetdigit(&realvalue, &nsd);
          *(zBuf--) = 0;                           /* Null terminate */
          if( flag_rtz && flag_dp ){     /* Remove trailing zeros and "." */
            while( zBuf>=zWorker && *zBuf=='0' ) *(zBuf--) = 0;
            if( zBuf>=zWorker && *zBuf=='.' ) *(zBuf--) = 0;
          }
          zBuf++;                            /* point to next free slot */
        }else{    /* etEXP or etGENERIC */
          flag_dp = (precision>0 || flag_alternateform);
          if( prefix ) *(zBuf++) = (char)prefix;   /* Sign */
          *(zBuf++) = (char)vxGetdigit(&realvalue, &nsd);  /* First digit */
          if( flag_dp ) *(zBuf++) = '.';     /* Decimal point */
          while( (precision--)>0 ) *(zBuf++) = (char)vxGetdigit(&realvalue, &nsd);
          zBuf--;                            /* point to last digit */
          if( flag_rtz && flag_dp ){          /* Remove tail zeros */
            while( zBuf>=zWorker && *zBuf=='0' ) *(zBuf--) = 0;
            if( zBuf>=zWorker && *zBuf=='.' ) *(zBuf--) = 0;
          }
          zBuf++;                            /* point to next free slot */
          if( exp || flag_exp ){
            *(zBuf++) = pInfo->charset[0];
            if( exp<0 ){ *(zBuf++) = '-'; exp = -exp; } /* sign of exp */
            else       { *(zBuf++) = '+'; }
            if( exp>=100 ){
              *(zBuf++) = (char)((exp/100)+'0');                /* 100's digit */
              exp %= 100;
            }
            *(zBuf++) = (char)(exp/10+'0');                     /* 10's digit */
            *(zBuf++) = (char)(exp%10+'0');                     /* 1's digit */
          }
        }
        /* The converted number is in buf[] and zero terminated.Output it.
        ** Note that the number is in the usual order, not reversed as with
        ** integer conversions.*/
        length = (int)(zBuf-zWorker);
        zBuf = zWorker;
        /* Special case:  Add leading zeros if the flag_zeropad flag is
        ** set and we are not left justified */
        if( flag_zeropad && !flag_leftjustify && length < width){
          int i;
          int nPad = width - length;
          for(i=width; i>=nPad; i--){
            zBuf[i] = zBuf[i-nPad];
          }
          i = prefix!=0;
          while( nPad-- ) zBuf[i++] = '0';
          length = width;
        }
#else
         zBuf = " ";
		 length = (int)sizeof(char);
#endif /* JX9_OMIT_FLOATING_POINT */
		 break;
							 }
		default:
			/* Invalid format specifer */
			zWorker[0] = '?';
			length = (int)sizeof(char);
			break;
		}
		 /*
		 ** The text of the conversion is pointed to by "zBuf" and is
		 ** "length" characters long.The field width is "width".Do
		 ** the output.
		 */
    if( !flag_leftjustify ){
      register int nspace;
      nspace = width-length;
      if( nspace>0 ){
        while( nspace>=etSPACESIZE ){
			rc = xConsumer(pCtx, spaces, etSPACESIZE, pUserData);
			if( rc != SXRET_OK ){
				return SXERR_ABORT; /* Consumer routine request an operation abort */
			}
			nspace -= etSPACESIZE;
        }
        if( nspace>0 ){
			rc = xConsumer(pCtx, spaces, (unsigned int)nspace, pUserData);
			if( rc != SXRET_OK ){
				return SXERR_ABORT; /* Consumer routine request an operation abort */
			}
		}
      }
    }
    if( length>0 ){
		rc = xConsumer(pCtx, zBuf, (unsigned int)length, pUserData);
		if( rc != SXRET_OK ){
		  return SXERR_ABORT; /* Consumer routine request an operation abort */
		}
    }
    if( flag_leftjustify ){
      register int nspace;
      nspace = width-length;
      if( nspace>0 ){
        while( nspace>=etSPACESIZE ){
			rc = xConsumer(pCtx, spaces, etSPACESIZE, pUserData);
			if( rc != SXRET_OK ){
				return SXERR_ABORT; /* Consumer routine request an operation abort */
			}
			nspace -= etSPACESIZE;
        }
        if( nspace>0 ){
			rc = xConsumer(pCtx, spaces, (unsigned int)nspace, pUserData);
			if( rc != SXRET_OK ){
				return SXERR_ABORT; /* Consumer routine request an operation abort */
			}
		}
      }
    }
 }/* for(;;) */
	return SXRET_OK;
}
/*
 * Callback [i.e: Formatted input consumer] of the sprintf function.
 */
static int sprintfConsumer(jx9_context *pCtx, const char *zInput, int nLen, void *pUserData)
{
	/* Consume directly */
	jx9_result_string(pCtx, zInput, nLen);
	SXUNUSED(pUserData); /* cc warning */
	return JX9_OK;
}
/*
 * string sprintf(string $format[, mixed $args [, mixed $... ]])
 *  Return a formatted string.
 * Parameters
 *  $format 
 *    The format string (see block comment above)
 * Return
 *  A string produced according to the formatting string format. 
 */
static int jx9Builtin_sprintf(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zFormat;
	int nLen;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Extract the string format */
	zFormat = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Format the string */
	jx9InputFormat(sprintfConsumer, pCtx, zFormat, nLen, nArg, apArg, 0, FALSE);
	return JX9_OK;
}
/*
 * Callback [i.e: Formatted input consumer] of the printf function.
 */
static int printfConsumer(jx9_context *pCtx, const char *zInput, int nLen, void *pUserData)
{
	jx9_int64 *pCounter = (jx9_int64 *)pUserData;
	/* Call the VM output consumer directly */
	jx9_context_output(pCtx, zInput, nLen);
	/* Increment counter */
	*pCounter += nLen;
	return JX9_OK;
}
/*
 * int64 printf(string $format[, mixed $args[, mixed $... ]])
 *  Output a formatted string.
 * Parameters
 *  $format
 *   See sprintf() for a description of format.
 * Return
 *  The length of the outputted string.
 */
static int jx9Builtin_printf(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	jx9_int64 nCounter = 0;
	const char *zFormat;
	int nLen;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the string format */
	zFormat = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Format the string */
	jx9InputFormat(printfConsumer, pCtx, zFormat, nLen, nArg, apArg, (void *)&nCounter, FALSE);
	/* Return the length of the outputted string */
	jx9_result_int64(pCtx, nCounter);
	return JX9_OK;
}
/*
 * int vprintf(string $format, array $args)
 *  Output a formatted string.
 * Parameters
 *  $format
 *   See sprintf() for a description of format.
 * Return
 *  The length of the outputted string.
 */
static int jx9Builtin_vprintf(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	jx9_int64 nCounter = 0;
	const char *zFormat;
	jx9_hashmap *pMap;
	SySet sArg;
	int nLen, n;
	if( nArg < 2 || !jx9_value_is_string(apArg[0]) || !jx9_value_is_json_array(apArg[1]) ){
		/* Missing/Invalid arguments, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the string format */
	zFormat = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Point to the hashmap */
	pMap = (jx9_hashmap *)apArg[1]->x.pOther;
	/* Extract arguments from the hashmap */
	n = jx9HashmapValuesToSet(pMap, &sArg);
	/* Format the string */
	jx9InputFormat(printfConsumer, pCtx, zFormat, nLen, n, (jx9_value **)SySetBasePtr(&sArg), (void *)&nCounter, TRUE);
	/* Return the length of the outputted string */
	jx9_result_int64(pCtx, nCounter);
	/* Release the container */
	SySetRelease(&sArg);
	return JX9_OK;
}
/*
 * int vsprintf(string $format, array $args)
 *  Output a formatted string.
 * Parameters
 *  $format
 *   See sprintf() for a description of format.
 * Return
 *  A string produced according to the formatting string format.
 */
static int jx9Builtin_vsprintf(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zFormat;
	jx9_hashmap *pMap;
	SySet sArg;
	int nLen, n;
	if( nArg < 2 || !jx9_value_is_string(apArg[0]) || !jx9_value_is_json_array(apArg[1]) ){
		/* Missing/Invalid arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Extract the string format */
	zFormat = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Point to hashmap */
	pMap = (jx9_hashmap *)apArg[1]->x.pOther;
	/* Extract arguments from the hashmap */
	n = jx9HashmapValuesToSet(pMap, &sArg);
	/* Format the string */
	jx9InputFormat(sprintfConsumer, pCtx, zFormat, nLen, n, (jx9_value **)SySetBasePtr(&sArg), 0, TRUE);
	/* Release the container */
	SySetRelease(&sArg);
	return JX9_OK;
}
/*
 * string size_format(int64 $size)
 *  Return a smart string represenation of the given size [i.e: 64-bit integer]
 *  Example:
 *    print size_format(1*1024*1024*1024);// 1GB
 *    print size_format(512*1024*1024); // 512 MB
 *    print size_format(file_size(/path/to/my/file_8192)); //8KB
 * Parameter
 *  $size
 *    Entity size in bytes.
 * Return
 *   Formatted string representation of the given size.
 */
static int jx9Builtin_size_format(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	/*Kilo*/ /*Mega*/ /*Giga*/ /*Tera*/ /*Peta*/ /*Exa*/ /*Zeta*/
	static const char zUnit[] = {"KMGTPEZ"};
	sxi32 nRest, i_32;
	jx9_int64 iSize;
	int c = -1; /* index in zUnit[] */

	if( nArg < 1 ){
		/* Missing argument, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Extract the given size */
	iSize = jx9_value_to_int64(apArg[0]);
	if( iSize < 100 /* Bytes */ ){
		/* Don't bother formatting, return immediately */
		jx9_result_string(pCtx, "0.1 KB", (int)sizeof("0.1 KB")-1);
		return JX9_OK;
	}
	for(;;){
		nRest = (sxi32)(iSize & 0x3FF); 
		iSize >>= 10;
		c++;
		if( (iSize & (~0 ^ 1023)) == 0 ){
			break;
		}
	}
	nRest /= 100;
	if( nRest > 9 ){
		nRest = 9;
	}
	if( iSize > 999 ){
		c++;
		nRest = 9;
		iSize = 0;
	}
	i_32 = (sxi32)iSize;
	/* Format */
	jx9_result_string_format(pCtx, "%d.%d %cB", i_32, nRest, zUnit[c]);
	return JX9_OK;
}
#if !defined(JX9_DISABLE_HASH_FUNC)
/*
 * string md5(string $str[, bool $raw_output = false])
 *   Calculate the md5 hash of a string.
 * Parameter
 *  $str
 *   Input string
 * $raw_output
 *   If the optional raw_output is set to TRUE, then the md5 digest
 *   is instead returned in raw binary format with a length of 16.
 * Return
 *  MD5 Hash as a 32-character hexadecimal string.
 */
static int jx9Builtin_md5(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	unsigned char zDigest[16];
	int raw_output = FALSE;
	const void *pIn;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Extract the input string */
	pIn = (const void *)jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	if( nArg > 1 && jx9_value_is_bool(apArg[1])){
		raw_output = jx9_value_to_bool(apArg[1]);
	}
	/* Compute the MD5 digest */
	SyMD5Compute(pIn, (sxu32)nLen, zDigest);
	if( raw_output ){
		/* Output raw digest */
		jx9_result_string(pCtx, (const char *)zDigest, (int)sizeof(zDigest));
	}else{
		/* Perform a binary to hex conversion */
		SyBinToHexConsumer((const void *)zDigest, sizeof(zDigest), HashConsumer, pCtx);
	}
	return JX9_OK;
}
/*
 * string sha1(string $str[, bool $raw_output = false])
 *   Calculate the sha1 hash of a string.
 * Parameter
 *  $str
 *   Input string
 * $raw_output
 *   If the optional raw_output is set to TRUE, then the md5 digest
 *   is instead returned in raw binary format with a length of 16.
 * Return
 *  SHA1 Hash as a 40-character hexadecimal string.
 */
static int jx9Builtin_sha1(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	unsigned char zDigest[20];
	int raw_output = FALSE;
	const void *pIn;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Extract the input string */
	pIn = (const void *)jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	if( nArg > 1 && jx9_value_is_bool(apArg[1])){
		raw_output = jx9_value_to_bool(apArg[1]);
	}
	/* Compute the SHA1 digest */
	SySha1Compute(pIn, (sxu32)nLen, zDigest);
	if( raw_output ){
		/* Output raw digest */
		jx9_result_string(pCtx, (const char *)zDigest, (int)sizeof(zDigest));
	}else{
		/* Perform a binary to hex conversion */
		SyBinToHexConsumer((const void *)zDigest, sizeof(zDigest), HashConsumer, pCtx);
	}
	return JX9_OK;
}
/*
 * int64 crc32(string $str)
 *   Calculates the crc32 polynomial of a strin.
 * Parameter
 *  $str
 *   Input string
 * Return
 *  CRC32 checksum of the given input (64-bit integer).
 */
static int jx9Builtin_crc32(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const void *pIn;
	sxu32 nCRC;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return 0 */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the input string */
	pIn = (const void *)jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Empty string */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Calculate the sum */
	nCRC = SyCrc32(pIn, (sxu32)nLen);
	/* Return the CRC32 as 64-bit integer */
	jx9_result_int64(pCtx, (jx9_int64)nCRC^ 0xFFFFFFFF);
	return JX9_OK;
}
#endif /* JX9_DISABLE_HASH_FUNC */
/*
 * Parse a CSV string and invoke the supplied callback for each processed xhunk.
 */
JX9_PRIVATE sxi32 jx9ProcessCsv(
	const char *zInput, /* Raw input */
	int nByte,  /* Input length */
	int delim,  /* Delimiter */
	int encl,   /* Enclosure */
	int escape,  /* Escape character */
	sxi32 (*xConsumer)(const char *, int, void *), /* User callback */
	void *pUserData /* Last argument to xConsumer() */
	)
{
	const char *zEnd = &zInput[nByte];
	const char *zIn = zInput;
	const char *zPtr;
	int isEnc;
	/* Start processing */
	for(;;){
		if( zIn >= zEnd ){
			/* No more input to process */
			break;
		}
		isEnc = 0;
		zPtr = zIn;
		/* Find the first delimiter */
		while( zIn < zEnd ){
			if( zIn[0] == delim && !isEnc){
				/* Delimiter found, break imediately */
				break;
			}else if( zIn[0] == encl ){
				/* Inside enclosure? */
				isEnc = !isEnc;
			}else if( zIn[0] == escape ){
				/* Escape sequence */
				zIn++;
			}
			/* Advance the cursor */
			zIn++;
		}
		if( zIn > zPtr ){
			int nByte = (int)(zIn-zPtr);
			sxi32 rc;
			/* Invoke the supllied callback */
			if( zPtr[0] == encl ){
				zPtr++;
				nByte-=2;
			}
			if( nByte > 0 ){
				rc = xConsumer(zPtr, nByte, pUserData);
				if( rc == SXERR_ABORT ){
					/* User callback request an operation abort */
					break;
				}
			}
		}
		/* Ignore trailing delimiter */
		while( zIn < zEnd && zIn[0] == delim ){
			zIn++;
		}
	}
	return SXRET_OK;
}
/*
 * Default consumer callback for the CSV parsing routine defined above.
 * All the processed input is insereted into an array passed as the last
 * argument to this callback.
 */
JX9_PRIVATE sxi32 jx9CsvConsumer(const char *zToken, int nTokenLen, void *pUserData)
{
	jx9_value *pArray = (jx9_value *)pUserData;
	jx9_value sEntry;
	SyString sToken;
	/* Insert the token in the given array */
	SyStringInitFromBuf(&sToken, zToken, nTokenLen);
	/* Remove trailing and leading white spcaces and null bytes */
	SyStringFullTrimSafe(&sToken);
	if( sToken.nByte < 1){
		return SXRET_OK;
	}
	jx9MemObjInitFromString(pArray->pVm, &sEntry, &sToken);
	jx9_array_add_elem(pArray, 0, &sEntry);
	jx9MemObjRelease(&sEntry);
	return SXRET_OK;
}
/*
 * array str_getcsv(string $input[, string $delimiter = ', '[, string $enclosure = '"' [, string $escape='\\']]])
 *  Parse a CSV string into an array.
 * Parameters
 *  $input
 *   The string to parse.
 *  $delimiter
 *   Set the field delimiter (one character only).
 *  $enclosure
 *   Set the field enclosure character (one character only).
 *  $escape
 *   Set the escape character (one character only). Defaults as a backslash (\)
 * Return
 *  An indexed array containing the CSV fields or NULL on failure.
 */
static int jx9Builtin_str_getcsv(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zInput, *zPtr;
	jx9_value *pArray;
	int delim  = ',';   /* Delimiter */
	int encl   = '"' ;  /* Enclosure */
	int escape = '\\';  /* Escape character */
	int nLen;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Extract the raw input */
	zInput = jx9_value_to_string(apArg[0], &nLen);
	if( nArg > 1 ){
		int i;
		if( jx9_value_is_string(apArg[1]) ){
			/* Extract the delimiter */
			zPtr = jx9_value_to_string(apArg[1], &i);
			if( i > 0 ){
				delim = zPtr[0];
			}
		}
		if( nArg > 2 ){
			if( jx9_value_is_string(apArg[2]) ){
				/* Extract the enclosure */
				zPtr = jx9_value_to_string(apArg[2], &i);
				if( i > 0 ){
					encl = zPtr[0];
				}
			}
			if( nArg > 3 ){
				if( jx9_value_is_string(apArg[3]) ){
					/* Extract the escape character */
					zPtr = jx9_value_to_string(apArg[3], &i);
					if( i > 0 ){
						escape = zPtr[0];
					}
				}
			}
		}
	}
	/* Create our array */
	pArray = jx9_context_new_array(pCtx);
	if( pArray == 0 ){
		jx9_context_throw_error(pCtx, JX9_CTX_ERR, "JX9 is running out of memory");
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Parse the raw input */
	jx9ProcessCsv(zInput, nLen, delim, encl, escape, jx9CsvConsumer, pArray);
	/* Return the freshly created array */
	jx9_result_value(pCtx, pArray);
	return JX9_OK;
}
/*
 * Extract a tag name from a raw HTML input and insert it in the given
 * container.
 * Refer to [strip_tags()].
 */
static sxi32 AddTag(SySet *pSet, const char *zTag, int nByte)
{
	const char *zEnd = &zTag[nByte];
	const char *zPtr;
	SyString sEntry;
	/* Strip tags */
	for(;;){
		while( zTag < zEnd && (zTag[0] == '<' || zTag[0] == '/' || zTag[0] == '?'
			|| zTag[0] == '!' || zTag[0] == '-' || ((unsigned char)zTag[0] < 0xc0 && SyisSpace(zTag[0]))) ){
				zTag++;
		}
		if( zTag >= zEnd ){
			break;
		}
		zPtr = zTag;
		/* Delimit the tag */
		while(zTag < zEnd ){
			if( (unsigned char)zTag[0] >= 0xc0 ){
				/* UTF-8 stream */
				zTag++;
				SX_JMP_UTF8(zTag, zEnd);
			}else if( !SyisAlphaNum(zTag[0]) ){
				break;
			}else{
				zTag++;
			}
		}
		if( zTag > zPtr ){
			/* Perform the insertion */
			SyStringInitFromBuf(&sEntry, zPtr, (int)(zTag-zPtr));
			SyStringFullTrim(&sEntry);
			SySetPut(pSet, (const void *)&sEntry);
		}
		/* Jump the trailing '>' */
		zTag++;
	}
	return SXRET_OK;
}
/*
 * Check if the given HTML tag name is present in the given container.
 * Return SXRET_OK if present.SXERR_NOTFOUND otherwise.
 * Refer to [strip_tags()].
 */
static sxi32 FindTag(SySet *pSet, const char *zTag, int nByte)
{
	if( SySetUsed(pSet) > 0 ){
		const char *zCur, *zEnd = &zTag[nByte];
		SyString sTag;
		while( zTag < zEnd &&  (zTag[0] == '<' || zTag[0] == '/' || zTag[0] == '?' ||
			((unsigned char)zTag[0] < 0xc0 && SyisSpace(zTag[0]))) ){
			zTag++;
		}
		/* Delimit the tag */
		zCur = zTag;
		while(zTag < zEnd ){
			if( (unsigned char)zTag[0] >= 0xc0 ){
				/* UTF-8 stream */
				zTag++;
				SX_JMP_UTF8(zTag, zEnd);
			}else if( !SyisAlphaNum(zTag[0]) ){
				break;
			}else{
				zTag++;
			}
		}
		SyStringInitFromBuf(&sTag, zCur, zTag-zCur);
		/* Trim leading white spaces and null bytes */
		SyStringLeftTrimSafe(&sTag);
		if( sTag.nByte > 0 ){
			SyString *aEntry, *pEntry;
			sxi32 rc;
			sxu32 n;
			/* Perform the lookup */
			aEntry = (SyString *)SySetBasePtr(pSet);
			for( n = 0 ; n < SySetUsed(pSet) ; ++n ){
				pEntry = &aEntry[n];
				/* Do the comparison */
				rc = SyStringCmp(pEntry, &sTag, SyStrnicmp);
				if( !rc ){
					return SXRET_OK;
				}
			}
		}
	}
	/* No such tag */
	return SXERR_NOTFOUND;
}
/*
 * This function tries to return a string [i.e: in the call context result buffer]
 * with all NUL bytes, HTML and JX9 tags stripped from a given string.
 * Refer to [strip_tags()].
 */
JX9_PRIVATE sxi32 jx9StripTagsFromString(jx9_context *pCtx, const char *zIn, int nByte, const char *zTaglist, int nTaglen)
{
	const char *zEnd = &zIn[nByte];
	const char *zPtr, *zTag;
	SySet sSet;
	/* initialize the set of allowed tags */
	SySetInit(&sSet, &pCtx->pVm->sAllocator, sizeof(SyString));
	if( nTaglen > 0 ){
		/* Set of allowed tags */
		AddTag(&sSet, zTaglist, nTaglen);
	}
	/* Set the empty string */
	jx9_result_string(pCtx, "", 0);
	/* Start processing */
	for(;;){
		if(zIn >= zEnd){
			/* No more input to process */
			break;
		}
		zPtr = zIn;
		/* Find a tag */
		while( zIn < zEnd && zIn[0] != '<' && zIn[0] != 0 /* NUL byte */ ){
			zIn++;
		}
		if( zIn > zPtr ){
			/* Consume raw input */
			jx9_result_string(pCtx, zPtr, (int)(zIn-zPtr));
		}
		/* Ignore trailing null bytes */
		while( zIn < zEnd && zIn[0] == 0 ){
			zIn++;
		}
		if(zIn >= zEnd){
			/* No more input to process */
			break;
		}
		if( zIn[0] == '<' ){
			sxi32 rc;
			zTag = zIn++;
			/* Delimit the tag */
			while( zIn < zEnd && zIn[0] != '>' ){
				zIn++;
			}
			if( zIn < zEnd ){
				zIn++; /* Ignore the trailing closing tag */
			}
			/* Query the set */
			rc = FindTag(&sSet, zTag, (int)(zIn-zTag));
			if( rc == SXRET_OK ){
				/* Keep the tag */
				jx9_result_string(pCtx, zTag, (int)(zIn-zTag));
			}
		}
	}
	/* Cleanup */
	SySetRelease(&sSet);
	return SXRET_OK;
}
/*
 * string strip_tags(string $str[, string $allowable_tags])
 *   Strip HTML and JX9 tags from a string.
 * Parameters
 *  $str
 *  The input string.
 * $allowable_tags
 *  You can use the optional second parameter to specify tags which should not be stripped. 
 * Return
 *  Returns the stripped string.
 */
static int jx9Builtin_strip_tags(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zTaglist = 0;
	const char *zString;
	int nTaglen = 0;
	int nLen;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Point to the raw string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nArg > 1 && jx9_value_is_string(apArg[1]) ){
		/* Allowed tag */
		zTaglist = jx9_value_to_string(apArg[1], &nTaglen);		
	}
	/* Process input */
	jx9StripTagsFromString(pCtx, zString, nLen, zTaglist, nTaglen);
	return JX9_OK;
}
/*
 * array str_split(string $string[, int $split_length = 1 ])
 *  Convert a string to an array.
 * Parameters
 * $str
 *  The input string.
 * $split_length
 *  Maximum length of the chunk.
 * Return
 *  If the optional split_length parameter is specified, the returned array
 *  will be broken down into chunks with each being split_length in length, otherwise
 *  each chunk will be one character in length. FALSE is returned if split_length is less than 1.
 *  If the split_length length exceeds the length of string, the entire string is returned 
 *  as the first (and only) array element.
 */
static int jx9Builtin_str_split(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString, *zEnd;
	jx9_value *pArray, *pValue;
	int split_len;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Point to the target string */
	zString = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Nothing to process, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	split_len = (int)sizeof(char);
	if( nArg > 1 ){
		/* Split length */
		split_len = jx9_value_to_int(apArg[1]);
		if( split_len < 1 ){
			/* Invalid length, return FALSE */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		if( split_len > nLen ){
			split_len = nLen;
		}
	}
	/* Create the array and the scalar value */
	pArray = jx9_context_new_array(pCtx);
	/*Chunk value */
	pValue = jx9_context_new_scalar(pCtx);
	if( pValue == 0 || pArray == 0 ){
		/* Return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Point to the end of the string */
	zEnd = &zString[nLen];
	/* Perform the requested operation */
	for(;;){
		int nMax;
		if( zString >= zEnd ){
			/* No more input to process */
			break;
		}
		nMax = (int)(zEnd-zString);
		if( nMax < split_len ){
			split_len = nMax;
		}
		/* Copy the current chunk */
		jx9_value_string(pValue, zString, split_len);
		/* Insert it */
		jx9_array_add_elem(pArray, 0, pValue); /* Will make it's own copy */
		/* reset the string cursor */
		jx9_value_reset_string_cursor(pValue);
		/* Update position */
		zString += split_len;
	}
	/* 
	 * Return the array.
	 * Don't worry about freeing memory, everything will be automatically released
	 * upon we return from this function.
	 */
	jx9_result_value(pCtx, pArray);
	return JX9_OK;
}
/*
 * Tokenize a raw string and extract the first non-space token.
 * Refer to [strspn()].
 */
static sxi32 ExtractNonSpaceToken(const char **pzIn, const char *zEnd, SyString *pOut)
{
	const char *zIn = *pzIn;
	const char *zPtr;
	/* Ignore leading white spaces */
	while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
		zIn++;
	}
	if( zIn >= zEnd ){
		/* End of input */
		return SXERR_EOF;
	}
	zPtr = zIn;
	/* Extract the token */
	while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && !SyisSpace(zIn[0]) ){
		zIn++;
	}
	SyStringInitFromBuf(pOut, zPtr, zIn-zPtr);
	/* Synchronize pointers */
	*pzIn = zIn;
	/* Return to the caller */
	return SXRET_OK;
}
/*
 * Check if the given string contains only characters from the given mask.
 * return the longest match.
 * Refer to [strspn()].
 */
static int LongestStringMask(const char *zString, int nLen, const char *zMask, int nMaskLen)
{
	const char *zEnd = &zString[nLen];
	const char *zIn = zString;
	int i, c;
	for(;;){
		if( zString >= zEnd ){
			break;
		}
		/* Extract current character */
		c = zString[0];
		/* Perform the lookup */
		for( i = 0 ; i < nMaskLen ; i++ ){
			if( c == zMask[i] ){
				/* Character found */
				break;
			}
		}
		if( i >= nMaskLen ){
			/* Character not in the current mask, break immediately */
			break;
		}
		/* Advance cursor */
		zString++;
	}
	/* Longest match */
	return (int)(zString-zIn);
}
/*
 * Do the reverse operation of the previous function [i.e: LongestStringMask()].
 * Refer to [strcspn()].
 */
static int LongestStringMask2(const char *zString, int nLen, const char *zMask, int nMaskLen)
{
	const char *zEnd = &zString[nLen];
	const char *zIn = zString;
	int i, c;
	for(;;){
		if( zString >= zEnd ){
			break;
		}
		/* Extract current character */
		c = zString[0];
		/* Perform the lookup */
		for( i = 0 ; i < nMaskLen ; i++ ){
			if( c == zMask[i] ){
				break;
			}
		}
		if( i < nMaskLen ){
			/* Character in the current mask, break immediately */
			break;
		}
		/* Advance cursor */
		zString++;
	}
	/* Longest match */
	return (int)(zString-zIn);
}
/*
 * int strspn(string $str, string $mask[, int $start[, int $length]])
 *  Finds the length of the initial segment of a string consisting entirely
 *  of characters contained within a given mask.
 * Parameters
 * $str
 *  The input string.
 * $mask
 *  The list of allowable characters.
 * $start
 *  The position in subject to start searching.
 *  If start is given and is non-negative, then strspn() will begin examining 
 *  subject at the start'th position. For instance, in the string 'abcdef', the character
 *  at position 0 is 'a', the character at position 2 is 'c', and so forth.
 *  If start is given and is negative, then strspn() will begin examining subject at the
 *  start'th position from the end of subject.
 * $length
 *  The length of the segment from subject to examine.
 *  If length is given and is non-negative, then subject will be examined for length
 *  characters after the starting position.
 *  If lengthis given and is negative, then subject will be examined from the starting
 *  position up to length characters from the end of subject.
 * Return
 * Returns the length of the initial segment of subject which consists entirely of characters
 * in mask.
 */
static int jx9Builtin_strspn(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString, *zMask, *zEnd;
	int iMasklen, iLen;
	SyString sToken;
	int iCount = 0;
	int rc;
	if( nArg < 2 ){
		/* Missing agruments, return zero */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &iLen);
	/* Extract the mask */
	zMask = jx9_value_to_string(apArg[1], &iMasklen);
	if( iLen < 1 || iMasklen < 1 ){
		/* Nothing to process, return zero */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	if( nArg > 2 ){
		int nOfft;
		/* Extract the offset */
		nOfft = jx9_value_to_int(apArg[2]);
		if( nOfft < 0 ){
			const char *zBase = &zString[iLen + nOfft];
			if( zBase > zString ){
				iLen = (int)(&zString[iLen]-zBase);
				zString = zBase;	
			}else{
				/* Invalid offset */
				jx9_result_int(pCtx, 0);
				return JX9_OK;
			}
		}else{
			if( nOfft >= iLen ){
				/* Invalid offset */
				jx9_result_int(pCtx, 0);
				return JX9_OK;
			}else{
				/* Update offset */
				zString += nOfft;
				iLen -= nOfft;
			}
		}
		if( nArg > 3 ){
			int iUserlen;
			/* Extract the desired length */
			iUserlen = jx9_value_to_int(apArg[3]);
			if( iUserlen > 0 && iUserlen < iLen ){
				iLen = iUserlen;
			}
		}
	}
	/* Point to the end of the string */
	zEnd = &zString[iLen];
	/* Extract the first non-space token */
	rc = ExtractNonSpaceToken(&zString, zEnd, &sToken);
	if( rc == SXRET_OK && sToken.nByte > 0 ){
		/* Compare against the current mask */
		iCount = LongestStringMask(sToken.zString, (int)sToken.nByte, zMask, iMasklen);
	}
	/* Longest match */
	jx9_result_int(pCtx, iCount);
	return JX9_OK;
}
/*
 * int strcspn(string $str, string $mask[, int $start[, int $length]])
 *  Find length of initial segment not matching mask.
 * Parameters
 * $str
 *  The input string.
 * $mask
 *  The list of not allowed characters.
 * $start
 *  The position in subject to start searching.
 *  If start is given and is non-negative, then strspn() will begin examining 
 *  subject at the start'th position. For instance, in the string 'abcdef', the character
 *  at position 0 is 'a', the character at position 2 is 'c', and so forth.
 *  If start is given and is negative, then strspn() will begin examining subject at the
 *  start'th position from the end of subject.
 * $length
 *  The length of the segment from subject to examine.
 *  If length is given and is non-negative, then subject will be examined for length
 *  characters after the starting position.
 *  If lengthis given and is negative, then subject will be examined from the starting
 *  position up to length characters from the end of subject.
 * Return
 *  Returns the length of the segment as an integer.
 */
static int jx9Builtin_strcspn(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString, *zMask, *zEnd;
	int iMasklen, iLen;
	SyString sToken;
	int iCount = 0;
	int rc;
	if( nArg < 2 ){
		/* Missing agruments, return zero */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zString = jx9_value_to_string(apArg[0], &iLen);
	/* Extract the mask */
	zMask = jx9_value_to_string(apArg[1], &iMasklen);
	if( iLen < 1 ){
		/* Nothing to process, return zero */
		jx9_result_int(pCtx, 0);
		return JX9_OK;
	}
	if( iMasklen < 1 ){
		/* No given mask, return the string length */
		jx9_result_int(pCtx, iLen);
		return JX9_OK;
	}
	if( nArg > 2 ){
		int nOfft;
		/* Extract the offset */
		nOfft = jx9_value_to_int(apArg[2]);
		if( nOfft < 0 ){
			const char *zBase = &zString[iLen + nOfft];
			if( zBase > zString ){
				iLen = (int)(&zString[iLen]-zBase);
				zString = zBase;	
			}else{
				/* Invalid offset */
				jx9_result_int(pCtx, 0);
				return JX9_OK;
			}
		}else{
			if( nOfft >= iLen ){
				/* Invalid offset */
				jx9_result_int(pCtx, 0);
				return JX9_OK;
			}else{
				/* Update offset */
				zString += nOfft;
				iLen -= nOfft;
			}
		}
		if( nArg > 3 ){
			int iUserlen;
			/* Extract the desired length */
			iUserlen = jx9_value_to_int(apArg[3]);
			if( iUserlen > 0 && iUserlen < iLen ){
				iLen = iUserlen;
			}
		}
	}
	/* Point to the end of the string */
	zEnd = &zString[iLen];
	/* Extract the first non-space token */
	rc = ExtractNonSpaceToken(&zString, zEnd, &sToken);
	if( rc == SXRET_OK && sToken.nByte > 0 ){
		/* Compare against the current mask */
		iCount = LongestStringMask2(sToken.zString, (int)sToken.nByte, zMask, iMasklen);
	}
	/* Longest match */
	jx9_result_int(pCtx, iCount);
	return JX9_OK;
}
/*
 * string strpbrk(string $haystack, string $char_list)
 *  Search a string for any of a set of characters.
 * Parameters
 *  $haystack
 *   The string where char_list is looked for.
 *  $char_list
 *   This parameter is case sensitive.
 * Return
 *  Returns a string starting from the character found, or FALSE if it is not found.
 */
static int jx9Builtin_strpbrk(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zString, *zList, *zEnd;
	int iLen, iListLen, i, c;
	sxu32 nOfft, nMax;
	sxi32 rc;
	if( nArg < 2 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the haystack and the char list */
	zString = jx9_value_to_string(apArg[0], &iLen);
	zList = jx9_value_to_string(apArg[1], &iListLen);
	if( iLen < 1 ){
		/* Nothing to process, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Point to the end of the string */
	zEnd = &zString[iLen];
	nOfft = nMax = SXU32_HIGH;
	/* perform the requested operation */
	for( i = 0 ; i < iListLen ; i++ ){
		c = zList[i];
		rc = SyByteFind(zString, (sxu32)iLen, c, &nMax);
		if( rc == SXRET_OK ){
			if( nMax < nOfft ){
				nOfft = nMax;
			}
		}
	}
	if( nOfft == SXU32_HIGH ){
		/* No such substring, return FALSE */
		jx9_result_bool(pCtx, 0);
	}else{
		/* Return the substring */
		jx9_result_string(pCtx, &zString[nOfft], (int)(zEnd-&zString[nOfft]));
	}
	return JX9_OK;
}
/*
 * string soundex(string $str)
 *  Calculate the soundex key of a string.
 * Parameters
 *  $str
 *   The input string.
 * Return
 *  Returns the soundex key as a string.
 * Note:
 *  This implementation is based on the one found in the SQLite3
 * source tree.
 */
static int jx9Builtin_soundex(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn;
	char zResult[8];
	int i, j;
	static const unsigned char iCode[] = {
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
		0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0, 
		1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, 
		0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0, 
		1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, 
	};
	if( nArg < 1 ){
		/* Missing arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	zIn = (unsigned char *)jx9_value_to_string(apArg[0], 0);
	for(i=0; zIn[i] && zIn[i] < 0xc0 && !SyisAlpha(zIn[i]); i++){}
	if( zIn[i] ){
		unsigned char prevcode = iCode[zIn[i]&0x7f];
		zResult[0] = (char)SyToUpper(zIn[i]);
		for(j=1; j<4 && zIn[i]; i++){
			int code = iCode[zIn[i]&0x7f];
			if( code>0 ){
				if( code!=prevcode ){
					prevcode = (unsigned char)code;
					zResult[j++] = (char)code + '0';
				}
			}else{
				prevcode = 0;
			}
		}
		while( j<4 ){
			zResult[j++] = '0';
		}
		jx9_result_string(pCtx, zResult, 4);
	}else{
	  jx9_result_string(pCtx, "?000", 4);
	}
	return JX9_OK;
}
/*
 * string wordwrap(string $str[, int $width = 75[, string $break = "\n"]])
 *  Wraps a string to a given number of characters.
 * Parameters
 *  $str
 *   The input string.
 * $width
 *  The column width.
 * $break
 *  The line is broken using the optional break parameter.
 * Return
 *  Returns the given string wrapped at the specified column. 
 */
static int jx9Builtin_wordwrap(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn, *zEnd, *zBreak;
	int iLen, iBreaklen, iChunk;
	if( nArg < 1 ){
		/* Missing arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Extract the input string */
	zIn = jx9_value_to_string(apArg[0], &iLen);
	if( iLen < 1 ){
		/* Nothing to process, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Chunk length */
	iChunk = 75;
	iBreaklen = 0;
	zBreak = ""; /* cc warning */
	if( nArg > 1 ){
		iChunk = jx9_value_to_int(apArg[1]);
		if( iChunk < 1 ){
			iChunk = 75;
		}
		if( nArg > 2 ){
			zBreak = jx9_value_to_string(apArg[2], &iBreaklen);
		}
	}
	if( iBreaklen < 1 ){
		/* Set a default column break */
#ifdef __WINNT__
		zBreak = "\r\n";
		iBreaklen = (int)sizeof("\r\n")-1;
#else
		zBreak = "\n";
		iBreaklen = (int)sizeof(char);
#endif
	}
	/* Perform the requested operation */
	zEnd = &zIn[iLen];
	for(;;){
		int nMax;
		if( zIn >= zEnd ){
			/* No more input to process */
			break;
		}
		nMax = (int)(zEnd-zIn);
		if( iChunk > nMax ){
			iChunk = nMax;
		}
		/* Append the column first */
		jx9_result_string(pCtx, zIn, iChunk); /* Will make it's own copy */
		/* Advance the cursor */
		zIn += iChunk;
		if( zIn < zEnd ){
			/* Append the line break */
			jx9_result_string(pCtx, zBreak, iBreaklen);
		}
	}
	return JX9_OK;
}
/*
 * Check if the given character is a member of the given mask.
 * Return TRUE on success. FALSE otherwise.
 * Refer to [strtok()].
 */
static int CheckMask(int c, const char *zMask, int nMasklen, int *pOfft)
{
	int i;
	for( i = 0 ; i < nMasklen ; ++i ){
		if( c == zMask[i] ){
			if( pOfft ){
				*pOfft = i;
			}
			return TRUE;
		}
	}
	return FALSE;
}
/*
 * Extract a single token from the input stream.
 * Refer to [strtok()].
 */
static sxi32 ExtractToken(const char **pzIn, const char *zEnd, const char *zMask, int nMasklen, SyString *pOut)
{
	const char *zIn = *pzIn;
	const char *zPtr;
	/* Ignore leading delimiter */
	while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && CheckMask(zIn[0], zMask, nMasklen, 0) ){
		zIn++;
	}
	if( zIn >= zEnd ){
		/* End of input */
		return SXERR_EOF;
	}
	zPtr = zIn;
	/* Extract the token */
	while( zIn < zEnd ){
		if( (unsigned char)zIn[0] >= 0xc0 ){
			/* UTF-8 stream */
			zIn++;
			SX_JMP_UTF8(zIn, zEnd);
		}else{
			if( CheckMask(zIn[0], zMask, nMasklen, 0) ){
				break;
			}
			zIn++;
		}
	}
	SyStringInitFromBuf(pOut, zPtr, zIn-zPtr);
	/* Update the cursor */
	*pzIn = zIn;
	/* Return to the caller */
	return SXRET_OK;
}
/* strtok auxiliary private data */
typedef struct strtok_aux_data strtok_aux_data;
struct strtok_aux_data
{
	const char *zDup;  /* Complete duplicate of the input */
	const char *zIn;   /* Current input stream */
	const char *zEnd;  /* End of input */
};
/*
 * string strtok(string $str, string $token)
 * string strtok(string $token)
 *  strtok() splits a string (str) into smaller strings (tokens), with each token
 *  being delimited by any character from token. That is, if you have a string like
 *  "This is an example string" you could tokenize this string into its individual
 *  words by using the space character as the token.
 *  Note that only the first call to strtok uses the string argument. Every subsequent
 *  call to strtok only needs the token to use, as it keeps track of where it is in 
 *  the current string. To start over, or to tokenize a new string you simply call strtok
 *  with the string argument again to initialize it. Note that you may put multiple tokens
 *  in the token parameter. The string will be tokenized when any one of the characters in 
 *  the argument are found. 
 * Parameters
 *  $str
 *  The string being split up into smaller strings (tokens).
 * $token
 *  The delimiter used when splitting up str.
 * Return
 *   Current token or FALSE on EOF.
 */
static int jx9Builtin_strtok(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	strtok_aux_data *pAux;
	const char *zMask;
	SyString sToken; 
	int nMasklen;
	sxi32 rc;
	if( nArg < 2 ){
		/* Extract top aux data */
		pAux = (strtok_aux_data *)jx9_context_peek_aux_data(pCtx);
		if( pAux == 0 ){
			/* No aux data, return FALSE */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		nMasklen = 0;
		zMask = ""; /* cc warning */
		if( nArg > 0 ){
			/* Extract the mask */
			zMask = jx9_value_to_string(apArg[0], &nMasklen);
		}
		if( nMasklen < 1 ){
			/* Invalid mask, return FALSE */
			jx9_context_free_chunk(pCtx, (void *)pAux->zDup);
			jx9_context_free_chunk(pCtx, pAux);
			(void)jx9_context_pop_aux_data(pCtx);
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		/* Extract the token */
		rc = ExtractToken(&pAux->zIn, pAux->zEnd, zMask, nMasklen, &sToken);
		if( rc != SXRET_OK ){
			/* EOF , discard the aux data */
			jx9_context_free_chunk(pCtx, (void *)pAux->zDup);
			jx9_context_free_chunk(pCtx, pAux);
			(void)jx9_context_pop_aux_data(pCtx);
			jx9_result_bool(pCtx, 0);
		}else{
			/* Return the extracted token */
			jx9_result_string(pCtx, sToken.zString, (int)sToken.nByte);
		}
	}else{
		const char *zInput, *zCur;
		char *zDup;
		int nLen;
		/* Extract the raw input */
		zCur = zInput = jx9_value_to_string(apArg[0], &nLen);
		if( nLen < 1 ){
			/* Empty input, return FALSE */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}
		/* Extract the mask */
		zMask = jx9_value_to_string(apArg[1], &nMasklen);
		if( nMasklen < 1 ){
			/* Set a default mask */
#define TOK_MASK " \n\t\r\f" 
			zMask = TOK_MASK;
			nMasklen = (int)sizeof(TOK_MASK) - 1;
#undef TOK_MASK
		}
		/* Extract a single token */
		rc = ExtractToken(&zInput, &zInput[nLen], zMask, nMasklen, &sToken);
		if( rc != SXRET_OK ){
			/* Empty input */
			jx9_result_bool(pCtx, 0);
			return JX9_OK;
		}else{
			/* Return the extracted token */
			jx9_result_string(pCtx, sToken.zString, (int)sToken.nByte);
		}
		/* Create our auxilliary data and copy the input */
		pAux = (strtok_aux_data *)jx9_context_alloc_chunk(pCtx, sizeof(strtok_aux_data), TRUE, FALSE);
		if( pAux ){
			nLen -= (int)(zInput-zCur);
			if( nLen < 1 ){
				jx9_context_free_chunk(pCtx, pAux);
				return JX9_OK;
			}
			/* Duplicate input */
			zDup = (char *)jx9_context_alloc_chunk(pCtx, (unsigned int)(nLen+1), TRUE, FALSE);
			if( zDup  ){
				SyMemcpy(zInput, zDup, (sxu32)nLen);
				/* Register the aux data */
				pAux->zDup = pAux->zIn = zDup;
				pAux->zEnd = &zDup[nLen];
				jx9_context_push_aux_data(pCtx, pAux);
			}
		}
	}
	return JX9_OK;
}
/*
 * string str_pad(string $input, int $pad_length[, string $pad_string = " " [, int $pad_type = STR_PAD_RIGHT]])
 *  Pad a string to a certain length with another string
 * Parameters
 *  $input
 *   The input string.
 * $pad_length
 *   If the value of pad_length is negative, less than, or equal to the length of the input 
 *   string, no padding takes place.
 * $pad_string
 *   Note:
 *    The pad_string WIIL NOT BE truncated if the required number of padding characters can't be evenly
 *    divided by the pad_string's length.
 * $pad_type
 *    Optional argument pad_type can be STR_PAD_RIGHT, STR_PAD_LEFT, or STR_PAD_BOTH. If pad_type
 *    is not specified it is assumed to be STR_PAD_RIGHT.
 * Return
 *  The padded string.
 */
static int jx9Builtin_str_pad(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int iLen, iPadlen, iType, i, iDiv, iStrpad, iRealPad, jPad;
	const char *zIn, *zPad;
	if( nArg < 2 ){
		/* Missing arguments, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn = jx9_value_to_string(apArg[0], &iLen);
	/* Padding length */
	iRealPad = iPadlen = jx9_value_to_int(apArg[1]);
	if( iPadlen > 0 ){
		iPadlen -= iLen;
	}
	if( iPadlen < 1  ){
		/* Return the string verbatim */
		jx9_result_string(pCtx, zIn, iLen);
		return JX9_OK;
	}
	zPad = " "; /* Whitespace padding */
	iStrpad = (int)sizeof(char);
	iType = 1 ; /* STR_PAD_RIGHT */
	if( nArg > 2 ){
		/* Padding string */
		zPad = jx9_value_to_string(apArg[2], &iStrpad);
		if( iStrpad < 1 ){
			/* Empty string */
			zPad = " "; /* Whitespace padding */
			iStrpad = (int)sizeof(char);
		}
		if( nArg > 3 ){
			/* Padd type */
			iType = jx9_value_to_int(apArg[3]);
			if( iType != 0 /* STR_PAD_LEFT */ && iType != 2 /* STR_PAD_BOTH */ ){
				iType = 1 ; /* STR_PAD_RIGHT */
			}
		}
	}
	iDiv = 1;
	if( iType == 2 ){
		iDiv = 2; /* STR_PAD_BOTH */
	}
	/* Perform the requested operation */
	if( iType == 0 /* STR_PAD_LEFT */ || iType == 2 /* STR_PAD_BOTH */ ){
		jPad = iStrpad;
		for( i = 0 ; i < iPadlen/iDiv ; i += jPad ){
			/* Padding */
			if( (int)jx9_context_result_buf_length(pCtx) + iLen + jPad >= iRealPad ){
				break;
			}
			jx9_result_string(pCtx, zPad, jPad);
		}
		if( iType == 0 /* STR_PAD_LEFT */ ){
			while( (int)jx9_context_result_buf_length(pCtx) + iLen < iRealPad ){
				jPad = iRealPad - (iLen + (int)jx9_context_result_buf_length(pCtx) );
				if( jPad > iStrpad ){
					jPad = iStrpad;
				}
				if( jPad < 1){
					break;
				}
				jx9_result_string(pCtx, zPad, jPad);
			}
		}
	}
	if( iLen > 0 ){
		/* Append the input string */
		jx9_result_string(pCtx, zIn, iLen);
	}
	if( iType == 1 /* STR_PAD_RIGHT */ || iType == 2 /* STR_PAD_BOTH */ ){
		for( i = 0 ; i < iPadlen/iDiv ; i += iStrpad ){
			/* Padding */
			if( (int)jx9_context_result_buf_length(pCtx) + iStrpad >= iRealPad ){
				break;
			}
			jx9_result_string(pCtx, zPad, iStrpad);
		}
		while( (int)jx9_context_result_buf_length(pCtx) < iRealPad ){
			jPad = iRealPad - (int)jx9_context_result_buf_length(pCtx);
			if( jPad > iStrpad ){
				jPad = iStrpad;
			}
			if( jPad < 1){
				break;
			}
			jx9_result_string(pCtx, zPad, jPad);
		}
	}
	return JX9_OK;
}
/*
 * String replacement private data.
 */
typedef struct str_replace_data str_replace_data;
struct str_replace_data
{
	/* The following two fields are only used by the strtr function */
	SyBlob *pWorker;         /* Working buffer */
	ProcStringMatch xMatch;  /* Pattern match routine */
	/* The following two fields are only used by the str_replace function */
	SySet *pCollector;  /* Argument collector*/
	jx9_context *pCtx;  /* Call context */
};
/*
 * Remove a substring.
 */
#define STRDEL(SRC, SLEN, OFFT, ILEN){\
	for(;;){\
		if( OFFT + ILEN >= SLEN ) break; SRC[OFFT] = SRC[OFFT+ILEN]; ++OFFT;\
	}\
}
/*
 * Shift right and insert algorithm.
 */
#define SHIFTRANDINSERT(SRC, LEN, OFFT, ENTRY, ELEN){\
	sxu32 INLEN = LEN - OFFT;\
	for(;;){\
	  if( LEN > 0 ){ LEN--; } if(INLEN < 1 ) break; SRC[LEN + ELEN] = SRC[LEN] ; --INLEN; \
	}\
	for(;;){\
		if(ELEN < 1)break; SRC[OFFT] = ENTRY[0]; OFFT++; ENTRY++; --ELEN;\
	}\
} 
/*
 * Replace all occurrences of the search string at offset (nOfft) with the given 
 * replacement string [i.e: zReplace].
 */
static int StringReplace(SyBlob *pWorker, sxu32 nOfft, int nLen, const char *zReplace, int nReplen)
{
	char *zInput = (char *)SyBlobData(pWorker);
	sxu32 n, m;
	n = SyBlobLength(pWorker);
	m = nOfft;
	/* Delete the old entry */
	STRDEL(zInput, n, m, nLen);
	SyBlobLength(pWorker) -= nLen;
	if( nReplen > 0 ){
		sxi32 iRep = nReplen;
		sxi32 rc;
		/*
		 * Make sure the working buffer is big enough to hold the replacement
		 * string.
		 */
		rc = SyBlobAppend(pWorker, 0/* Grow without an append operation*/, (sxu32)nReplen);
		if( rc != SXRET_OK ){
			/* Simply ignore any memory failure problem */
			return SXRET_OK;
		}
		/* Perform the insertion now */
		zInput = (char *)SyBlobData(pWorker);
		n = SyBlobLength(pWorker);
		SHIFTRANDINSERT(zInput, n, nOfft, zReplace, iRep);
		SyBlobLength(pWorker) += nReplen;
	}	
	return SXRET_OK;
}
/*
 * String replacement walker callback.
 * The following callback is invoked for each array entry that hold
 * the replace string.
 * Refer to the strtr() implementation for more information.
 */
static int StringReplaceWalker(jx9_value *pKey, jx9_value *pData, void *pUserData)
{
	str_replace_data *pRepData = (str_replace_data *)pUserData;
	const char *zTarget, *zReplace;
	SyBlob *pWorker;
	int tLen, nLen;
	sxu32 nOfft;
	sxi32 rc;
	/* Point to the working buffer */
	pWorker = pRepData->pWorker;
	if( !jx9_value_is_string(pKey) ){
		/* Target and replace must be a string */
		return JX9_OK;
	}
	/* Extract the target and the replace */
	zTarget = jx9_value_to_string(pKey, &tLen);
	if( tLen < 1 ){
		/* Empty target, return immediately */
		return JX9_OK;
	}
	/* Perform a pattern search */
	rc = pRepData->xMatch(SyBlobData(pWorker), SyBlobLength(pWorker), (const void *)zTarget, (sxu32)tLen, &nOfft);
	if( rc != SXRET_OK ){
		/* Pattern not found */
		return JX9_OK;
	}
	/* Extract the replace string */
	zReplace = jx9_value_to_string(pData, &nLen);
	/* Perform the replace process */
	StringReplace(pWorker, nOfft, tLen, zReplace, nLen);
	/* All done */
	return JX9_OK;
}
/*
 * The following walker callback is invoked by the str_rplace() function inorder
 * to collect search/replace string.
 * This callback is invoked only if the given argument is of type array.
 */
static int StrReplaceWalker(jx9_value *pKey, jx9_value *pData, void *pUserData)
{
	str_replace_data *pRep = (str_replace_data *)pUserData;
	SyString sWorker;
	const char *zIn;
	int nByte;
	/* Extract a string representation of the given argument */
	zIn = jx9_value_to_string(pData, &nByte);
	SyStringInitFromBuf(&sWorker, 0, 0);
	if( nByte > 0 ){
		char *zDup;
		/* Duplicate the chunk */
		zDup = (char *)jx9_context_alloc_chunk(pRep->pCtx, (unsigned int)nByte, FALSE, 
			TRUE /* Release the chunk automatically, upon this context is destroyd */
			);
		if( zDup == 0 ){
			/* Ignore any memory failure problem */
			jx9_context_throw_error(pRep->pCtx, JX9_CTX_ERR, "JX9 is running out of memory");
			return JX9_OK;
		}
		SyMemcpy(zIn, zDup, (sxu32)nByte);
		/* Save the chunk */
		SyStringInitFromBuf(&sWorker, zDup, nByte);
	}
	/* Save for later processing */
	SySetPut(pRep->pCollector, (const void *)&sWorker);
	/* All done */
	SXUNUSED(pKey); /* cc warning */
	return JX9_OK;
}
/*
 * mixed str_replace(mixed $search, mixed $replace, mixed $subject[, int &$count ])
 * mixed str_ireplace(mixed $search, mixed $replace, mixed $subject[, int &$count ])
 *  Replace all occurrences of the search string with the replacement string.
 * Parameters
 *  If search and replace are arrays, then str_replace() takes a value from each
 *  array and uses them to search and replace on subject. If replace has fewer values
 *  than search, then an empty string is used for the rest of replacement values.
 *  If search is an array and replace is a string, then this replacement string is used
 *  for every value of search. The converse would not make sense, though.
 *  If search or replace are arrays, their elements are processed first to last.
 * $search
 *  The value being searched for, otherwise known as the needle. An array may be used
 *  to designate multiple needles.
 * $replace
 *  The replacement value that replaces found search values. An array may be used
 *  to designate multiple replacements.
 * $subject
 *  The string or array being searched and replaced on, otherwise known as the haystack.
 *  If subject is an array, then the search and replace is performed with every entry 
 *  of subject, and the return value is an array as well.
 * $count (Not used)
 *  If passed, this will be set to the number of replacements performed.
 * Return
 * This function returns a string or an array with the replaced values.
 */
static int jx9Builtin_str_replace(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	SyString sTemp, *pSearch, *pReplace;
	ProcStringMatch xMatch;
	const char *zIn, *zFunc;
	str_replace_data sRep;
	SyBlob sWorker;
	SySet sReplace;
	SySet sSearch;
	int rep_str;
	int nByte;
	sxi32 rc;
	if( nArg < 3 ){
		/* Missing/Invalid arguments, return null */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Initialize fields */
	SySetInit(&sSearch, &pCtx->pVm->sAllocator, sizeof(SyString));
	SySetInit(&sReplace, &pCtx->pVm->sAllocator, sizeof(SyString));
	SyBlobInit(&sWorker, &pCtx->pVm->sAllocator);
	SyZero(&sRep, sizeof(str_replace_data));
	sRep.pCtx = pCtx;
	sRep.pCollector = &sSearch;
	rep_str = 0;
	/* Extract the subject */
	zIn = jx9_value_to_string(apArg[2], &nByte);
	if( nByte < 1 ){
		/* Nothing to replace, return the empty string */
		jx9_result_string(pCtx, "", 0);
		return JX9_OK;
	}
	/* Copy the subject */
	SyBlobAppend(&sWorker, (const void *)zIn, (sxu32)nByte);
	/* Search string */
	if( jx9_value_is_json_array(apArg[0]) ){
		/* Collect search string */
		jx9_array_walk(apArg[0], StrReplaceWalker, &sRep);
	}else{
		/* Single pattern */
		zIn = jx9_value_to_string(apArg[0], &nByte);
		if( nByte < 1 ){
			/* Return the subject untouched since no search string is available */
			jx9_result_value(pCtx, apArg[2]/* Subject as thrird argument*/);
			return JX9_OK;
		}
		SyStringInitFromBuf(&sTemp, zIn, nByte);
		/* Save for later processing */
		SySetPut(&sSearch, (const void *)&sTemp);
	}
	/* Replace string */
	if( jx9_value_is_json_array(apArg[1]) ){
		/* Collect replace string */
		sRep.pCollector = &sReplace;
		jx9_array_walk(apArg[1], StrReplaceWalker, &sRep);
	}else{
		/* Single needle */
		zIn = jx9_value_to_string(apArg[1], &nByte);
		rep_str = 1;
		SyStringInitFromBuf(&sTemp, zIn, nByte);
		/* Save for later processing */
		SySetPut(&sReplace, (const void *)&sTemp);
	}
	/* Reset loop cursors */
	SySetResetCursor(&sSearch);
	SySetResetCursor(&sReplace);
	pReplace = pSearch = 0; /* cc warning */
	SyStringInitFromBuf(&sTemp, "", 0);
	/* Extract function name */
	zFunc = jx9_function_name(pCtx);
	/* Set the default pattern match routine */
	xMatch = SyBlobSearch;
	if( SyStrncmp(zFunc, "str_ireplace", sizeof("str_ireplace") - 1) ==  0 ){
		/* Case insensitive pattern match */
		xMatch = iPatternMatch;
	}
	/* Start the replace process */
	while( SXRET_OK == SySetGetNextEntry(&sSearch, (void **)&pSearch) ){
		sxu32 nCount, nOfft;
		if( pSearch->nByte <  1 ){
			/* Empty string, ignore */
			continue;
		}
		/* Extract the replace string */
		if( rep_str ){
			pReplace = (SyString *)SySetPeek(&sReplace);
		}else{
			if( SXRET_OK != SySetGetNextEntry(&sReplace, (void **)&pReplace) ){
				/* Sepecial case when 'replace set' has fewer values than the search set.
				 * An empty string is used for the rest of replacement values
				 */
				pReplace = 0;
			}
		}
		if( pReplace == 0 ){
			/* Use an empty string instead */
			pReplace = &sTemp;
		}
		nOfft = nCount = 0;
		for(;;){
			if( nCount >= SyBlobLength(&sWorker) ){
				break;
			}
			/* Perform a pattern lookup */
			rc = xMatch(SyBlobDataAt(&sWorker, nCount), SyBlobLength(&sWorker) - nCount, (const void *)pSearch->zString, 
				pSearch->nByte, &nOfft);
			if( rc != SXRET_OK ){
				/* Pattern not found */
				break;
			}
			/* Perform the replace operation */
			StringReplace(&sWorker, nCount+nOfft, (int)pSearch->nByte, pReplace->zString, (int)pReplace->nByte);
			/* Increment offset counter */
			nCount += nOfft + pReplace->nByte;
		}
	}
	/* All done, clean-up the mess left behind */
	jx9_result_string(pCtx, (const char *)SyBlobData(&sWorker), (int)SyBlobLength(&sWorker));
	SySetRelease(&sSearch);
	SySetRelease(&sReplace);
	SyBlobRelease(&sWorker);
	return JX9_OK;
}
/*
 * string strtr(string $str, string $from, string $to)
 * string strtr(string $str, array $replace_pairs)
 *  Translate characters or replace substrings.
 * Parameters
 *  $str
 *  The string being translated.
 * $from
 *  The string being translated to to.
 * $to
 *  The string replacing from.
 * $replace_pairs
 *  The replace_pairs parameter may be used instead of to and 
 *  from, in which case it's an array in the form array('from' => 'to', ...).
 * Return
 *  The translated string.
 *  If replace_pairs contains a key which is an empty string (""), FALSE will be returned.
 */
static int jx9Builtin_strtr(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn;
	int nLen;
	if( nArg < 1 ){
		/* Nothing to replace, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	zIn = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 || nArg < 2 ){
		/* Invalid arguments */
		jx9_result_string(pCtx, zIn, nLen);
		return JX9_OK;
	}
	if( nArg == 2 && jx9_value_is_json_array(apArg[1]) ){
		str_replace_data sRepData;
		SyBlob sWorker;
		/* Initilaize the working buffer */
		SyBlobInit(&sWorker, &pCtx->pVm->sAllocator);
		/* Copy raw string */
		SyBlobAppend(&sWorker, (const void *)zIn, (sxu32)nLen);
		/* Init our replace data instance */
		sRepData.pWorker = &sWorker;
		sRepData.xMatch = SyBlobSearch;
		/* Iterate throw array entries and perform the replace operation.*/
		jx9_array_walk(apArg[1], StringReplaceWalker, &sRepData);
		/* All done, return the result string */
		jx9_result_string(pCtx, (const char *)SyBlobData(&sWorker), 
			(int)SyBlobLength(&sWorker)); /* Will make it's own copy */
		/* Clean-up */
		SyBlobRelease(&sWorker);
	}else{
		int i, flen, tlen, c, iOfft;
		const char *zFrom, *zTo;
		if( nArg < 3 ){
			/* Nothing to replace */
			jx9_result_string(pCtx, zIn, nLen);
			return JX9_OK;
		}
		/* Extract given arguments */
		zFrom = jx9_value_to_string(apArg[1], &flen);
		zTo = jx9_value_to_string(apArg[2], &tlen);
		if( flen < 1 || tlen < 1 ){
			/* Nothing to replace */
			jx9_result_string(pCtx, zIn, nLen);
			return JX9_OK;
		}
		/* Start the replace process */
		for( i = 0 ; i < nLen ; ++i ){
			c = zIn[i];
			if( CheckMask(c, zFrom, flen, &iOfft) ){
				if ( iOfft < tlen ){
					c = zTo[iOfft];
				}
			}
			jx9_result_string(pCtx, (const char *)&c, (int)sizeof(char));
			
		}
	}
	return JX9_OK;
}
/*
 * Parse an INI string.
 * According to wikipedia
 *  The INI file format is an informal standard for configuration files for some platforms or software.
 *  INI files are simple text files with a basic structure composed of "sections" and "properties".
 *  Format
*    Properties
*     The basic element contained in an INI file is the property. Every property has a name and a value
*     delimited by an equals sign (=). The name appears to the left of the equals sign.
*     Example:
*      name=value
*    Sections
*     Properties may be grouped into arbitrarily named sections. The section name appears on a line by itself
*     in square brackets ([ and ]). All properties after the section declaration are associated with that section.
*     There is no explicit "end of section" delimiter; sections end at the next section declaration
*     or the end of the file. Sections may not be nested.
*     Example:
*      [section]
*   Comments
*    Semicolons (;) at the beginning of the line indicate a comment. Comment lines are ignored.
* This function return an array holding parsed values on success.FALSE otherwise.
*/
JX9_PRIVATE sxi32 jx9ParseIniString(jx9_context *pCtx, const char *zIn, sxu32 nByte, int bProcessSection)
{
	jx9_value *pCur, *pArray, *pSection, *pWorker, *pValue;
	const char *zCur, *zEnd = &zIn[nByte];
	SyHashEntry *pEntry;
	SyString sEntry;
	SyHash sHash;
	int c;
	/* Create an empty array and worker variables */
	pArray = jx9_context_new_array(pCtx);
	pWorker = jx9_context_new_scalar(pCtx);
	pValue = jx9_context_new_scalar(pCtx);
	if( pArray == 0 || pWorker == 0 || pValue == 0){
		/* Out of memory */
		jx9_context_throw_error(pCtx, JX9_CTX_ERR, "JX9 is running out of memory");
		/* Return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	SyHashInit(&sHash, &pCtx->pVm->sAllocator, 0, 0);
	pCur = pArray;
	/* Start the parse process */
	for(;;){
		/* Ignore leading white spaces */
		while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0])){
			zIn++;
		}
		if( zIn >= zEnd ){
			/* No more input to process */
			break;
		}
		if( zIn[0] == ';' || zIn[0] == '#' ){
			/* Comment til the end of line */
			zIn++;
			while(zIn < zEnd && zIn[0] != '\n' ){
				zIn++;
			}
			continue;
		}
		/* Reset the string cursor of the working variable */
		jx9_value_reset_string_cursor(pWorker);
		if( zIn[0] == '[' ){
			/* Section: Extract the section name */
			zIn++;
			zCur = zIn;
			while( zIn < zEnd && zIn[0] != ']' ){
				zIn++;
			}
			if( zIn > zCur && bProcessSection ){
				/* Save the section name */
				SyStringInitFromBuf(&sEntry, zCur, (int)(zIn-zCur));
				SyStringFullTrim(&sEntry);
				jx9_value_string(pWorker, sEntry.zString, (int)sEntry.nByte);
				if( sEntry.nByte > 0 ){
					/* Associate an array with the section */
					pSection = jx9_context_new_array(pCtx);
					if( pSection ){
						jx9_array_add_elem(pArray, pWorker/*Section name*/, pSection);
						pCur = pSection;
					}
				}
			}
			zIn++; /* Trailing square brackets ']' */
		}else{
			jx9_value *pOldCur;
			int is_array;
			int iLen;
			/* Properties */
			is_array = 0;
			zCur = zIn;
			iLen = 0; /* cc warning */
			pOldCur = pCur;
			while( zIn < zEnd && zIn[0] != '=' ){
				if( zIn[0] == '[' && !is_array ){
					/* Array */
					iLen = (int)(zIn-zCur);
					is_array = 1;
					if( iLen > 0 ){
						jx9_value *pvArr = 0; /* cc warning */
						/* Query the hashtable */
						SyStringInitFromBuf(&sEntry, zCur, iLen);
						SyStringFullTrim(&sEntry);
						pEntry = SyHashGet(&sHash, (const void *)sEntry.zString, sEntry.nByte);
						if( pEntry ){
							pvArr = (jx9_value *)SyHashEntryGetUserData(pEntry);
						}else{
							/* Create an empty array */
							pvArr = jx9_context_new_array(pCtx);
							if( pvArr ){
								/* Save the entry */
								SyHashInsert(&sHash, (const void *)sEntry.zString, sEntry.nByte, pvArr);
								/* Insert the entry */
								jx9_value_reset_string_cursor(pWorker);
								jx9_value_string(pWorker, sEntry.zString, (int)sEntry.nByte);
								jx9_array_add_elem(pCur, pWorker, pvArr);
								jx9_value_reset_string_cursor(pWorker);
							}
						}
						if( pvArr ){
							pCur = pvArr;
						}
					}
					while ( zIn < zEnd && zIn[0] != ']' ){
						zIn++;
					}
				}
				zIn++;
			}
			if( !is_array ){
				iLen = (int)(zIn-zCur);
			}
			/* Trim the key */
			SyStringInitFromBuf(&sEntry, zCur, iLen);
			SyStringFullTrim(&sEntry);
			if( sEntry.nByte > 0 ){
				if( !is_array ){
					/* Save the key name */
					jx9_value_string(pWorker, sEntry.zString, (int)sEntry.nByte);
				}
				/* extract key value */
				jx9_value_reset_string_cursor(pValue);
				zIn++; /* '=' */
				while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
					zIn++;
				}
				if( zIn < zEnd ){
					zCur = zIn;
					c = zIn[0];
					if( c == '"' || c == '\'' ){
						zIn++;
						/* Delimit the value */
						while( zIn < zEnd ){
							if ( zIn[0] == c && zIn[-1] != '\\' ){
								break;
							}
							zIn++;
						}
						if( zIn < zEnd ){
							zIn++;
						}
					}else{
						while( zIn < zEnd ){
							if( zIn[0] == '\n' ){
								if( zIn[-1] != '\\' ){
									break;
								}
							}else if( zIn[0] == ';' || zIn[0] == '#' ){
								/* Inline comments */
								break;
							}
							zIn++;
						}
					}
					/* Trim the value */
					SyStringInitFromBuf(&sEntry, zCur, (int)(zIn-zCur));
					SyStringFullTrim(&sEntry);
					if( c == '"' || c == '\'' ){
						SyStringTrimLeadingChar(&sEntry, c);
						SyStringTrimTrailingChar(&sEntry, c);
					}
					if( sEntry.nByte > 0 ){
						jx9_value_string(pValue, sEntry.zString, (int)sEntry.nByte);
					}
					/* Insert the key and it's value */
					jx9_array_add_elem(pCur, is_array ? 0 /*Automatic index assign */: pWorker, pValue);
				}
			}else{
				while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && ( SyisSpace(zIn[0]) || zIn[0] == '=' ) ){
					zIn++;
				}
			}
			pCur = pOldCur;
		}
	}
	SyHashRelease(&sHash);
	/* Return the parse of the INI string */
	jx9_result_value(pCtx, pArray);
	return SXRET_OK;
}
/*
 * array parse_ini_string(string $ini[, bool $process_sections = false[, int $scanner_mode = INI_SCANNER_NORMAL ]])
 *  Parse a configuration string.
 * Parameters
 *  $ini
 *   The contents of the ini file being parsed.
 *  $process_sections
 *   By setting the process_sections parameter to TRUE, you get a multidimensional array, with the section names
 *   and settings included. The default for process_sections is FALSE.
 *  $scanner_mode (Not used)
 *   Can either be INI_SCANNER_NORMAL (default) or INI_SCANNER_RAW. If INI_SCANNER_RAW is supplied
 *   then option values will not be parsed.
 * Return
 *  The settings are returned as an associative array on success, and FALSE on failure.
 */
static int jx9Builtin_parse_ini_string(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIni;
	int nByte;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid arguments, return FALSE*/
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the raw INI buffer */
	zIni = jx9_value_to_string(apArg[0], &nByte);
	/* Process the INI buffer*/
	jx9ParseIniString(pCtx, zIni, (sxu32)nByte, (nArg > 1) ? jx9_value_to_bool(apArg[1]) : 0);
	return JX9_OK;
}
/*
 * Ctype Functions.
 * Authors:
 *    Symisc Systems, devel@symisc.net.
 *    Copyright (C) Symisc Systems, http://jx9.symisc.net
 * Status:
 *    Stable.
 */
/*
 * bool ctype_alnum(string $text)
 *  Checks if all of the characters in the provided string, text, are alphanumeric.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *   TRUE if every character in text is either a letter or a digit, FALSE otherwise.
 */
static int jx9Builtin_ctype_alnum(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( !SyisAlphaNum(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_alpha(string $text)
 *  Checks if all of the characters in the provided string, text, are alphabetic.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  TRUE if every character in text is a letter from the current locale, FALSE otherwise.
 */
static int jx9Builtin_ctype_alpha(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( !SyisAlpha(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_cntrl(string $text)
 *  Checks if all of the characters in the provided string, text, are control characters.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  TRUE if every character in text is a control characters, FALSE otherwise.
 */
static int jx9Builtin_ctype_cntrl(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( zIn[0] >= 0xc0 ){
			/* UTF-8 stream  */
			break;
		}
		if( !SyisCtrl(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_digit(string $text)
 *  Checks if all of the characters in the provided string, text, are numerical.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  TRUE if every character in the string text is a decimal digit, FALSE otherwise.
 */
static int jx9Builtin_ctype_digit(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( zIn[0] >= 0xc0 ){
			/* UTF-8 stream  */
			break;
		}
		if( !SyisDigit(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_xdigit(string $text)
 *  Check for character(s) representing a hexadecimal digit.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  Returns TRUE if every character in text is a hexadecimal 'digit', that is
 * a decimal digit or a character from [A-Fa-f] , FALSE otherwise. 
 */
static int jx9Builtin_ctype_xdigit(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( zIn[0] >= 0xc0 ){
			/* UTF-8 stream  */
			break;
		}
		if( !SyisHex(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_graph(string $text)
 *  Checks if all of the characters in the provided string, text, creates visible output.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  Returns TRUE if every character in text is printable and actually creates visible output
 * (no white space), FALSE otherwise. 
 */
static int jx9Builtin_ctype_graph(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( zIn[0] >= 0xc0 ){
			/* UTF-8 stream  */
			break;
		}
		if( !SyisGraph(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_print(string $text)
 *  Checks if all of the characters in the provided string, text, are printable.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  Returns TRUE if every character in text will actually create output (including blanks).
 *  Returns FALSE if text contains control characters or characters that do not have any output
 *  or control function at all. 
 */
static int jx9Builtin_ctype_print(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( zIn[0] >= 0xc0 ){
			/* UTF-8 stream  */
			break;
		}
		if( !SyisPrint(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_punct(string $text)
 *  Checks if all of the characters in the provided string, text, are punctuation character.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  Returns TRUE if every character in text is printable, but neither letter
 *  digit or blank, FALSE otherwise.
 */
static int jx9Builtin_ctype_punct(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( zIn[0] >= 0xc0 ){
			/* UTF-8 stream  */
			break;
		}
		if( !SyisPunct(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_space(string $text)
 *  Checks if all of the characters in the provided string, text, creates whitespace.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  Returns TRUE if every character in text creates some sort of white space, FALSE otherwise.
 *  Besides the blank character this also includes tab, vertical tab, line feed, carriage return
 *  and form feed characters. 
 */
static int jx9Builtin_ctype_space(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( zIn[0] >= 0xc0 ){
			/* UTF-8 stream  */
			break;
		}
		if( !SyisSpace(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_lower(string $text)
 *  Checks if all of the characters in the provided string, text, are lowercase letters.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  Returns TRUE if every character in text is a lowercase letter in the current locale. 
 */
static int jx9Builtin_ctype_lower(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( !SyisLower(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * bool ctype_upper(string $text)
 *  Checks if all of the characters in the provided string, text, are uppercase letters.
 * Parameters
 *  $text
 *   The tested string.
 * Return
 *  Returns TRUE if every character in text is a uppercase letter in the current locale. 
 */
static int jx9Builtin_ctype_upper(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const unsigned char *zIn, *zEnd;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the target string */
	zIn  = (const unsigned char *)jx9_value_to_string(apArg[0], &nLen);
	zEnd = &zIn[nLen];
	if( nLen < 1 ){
		/* Empty string, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the requested operation */
	for(;;){
		if( zIn >= zEnd ){
			/* If we reach the end of the string, then the test succeeded. */
			jx9_result_bool(pCtx, 1);
			return JX9_OK;
		}
		if( !SyisUpper(zIn[0]) ){
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	/* The test failed, return FALSE */
	jx9_result_bool(pCtx, 0);
	return JX9_OK;
}
/*
 * Date/Time functions
 * Authors:
 *    Symisc Systems, devel@symisc.net.
 *    Copyright (C) Symisc Systems, http://jx9.symisc.net
 * Status:
 *    Devel.
 */
#include <time.h>
#ifdef __WINNT__
/* GetSystemTime() */
#include <Windows.h> 
#ifdef _WIN32_WCE
/*
** WindowsCE does not have a localtime() function.  So create a
** substitute.
** Taken from the SQLite3 source tree.
** Status: Public domain
*/
struct tm *__cdecl localtime(const time_t *t)
{
  static struct tm y;
  FILETIME uTm, lTm;
  SYSTEMTIME pTm;
  jx9_int64 t64;
  t64 = *t;
  t64 = (t64 + 11644473600)*10000000;
  uTm.dwLowDateTime = (DWORD)(t64 & 0xFFFFFFFF);
  uTm.dwHighDateTime= (DWORD)(t64 >> 32);
  FileTimeToLocalFileTime(&uTm, &lTm);
  FileTimeToSystemTime(&lTm, &pTm);
  y.tm_year = pTm.wYear - 1900;
  y.tm_mon = pTm.wMonth - 1;
  y.tm_wday = pTm.wDayOfWeek;
  y.tm_mday = pTm.wDay;
  y.tm_hour = pTm.wHour;
  y.tm_min = pTm.wMinute;
  y.tm_sec = pTm.wSecond;
  return &y;
}
#endif /*_WIN32_WCE */
#elif defined(__UNIXES__)
#include <sys/time.h>
#endif /* __WINNT__*/
 /*
  * int64 time(void)
  *  Current Unix timestamp
  * Parameters
  *  None.
  * Return
  *  Returns the current time measured in the number of seconds
  *  since the Unix Epoch (January 1 1970 00:00:00 GMT).
  */
static int jx9Builtin_time(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	time_t tt;
	SXUNUSED(nArg); /* cc warning */
	SXUNUSED(apArg);
	/* Extract the current time */
	time(&tt);
	/* Return as 64-bit integer */
	jx9_result_int64(pCtx, (jx9_int64)tt);
	return  JX9_OK;
}
/*
  * string/float microtime([ bool $get_as_float = false ])
  *  microtime() returns the current Unix timestamp with microseconds.
  * Parameters
  *  $get_as_float
  *   If used and set to TRUE, microtime() will return a float instead of a string
  *   as described in the return values section below.
  * Return
  *  By default, microtime() returns a string in the form "msec sec", where sec 
  *  is the current time measured in the number of seconds since the Unix 
  *  epoch (0:00:00 January 1, 1970 GMT), and msec is the number of microseconds
  *  that have elapsed since sec expressed in seconds.
  *  If get_as_float is set to TRUE, then microtime() returns a float, which represents
  *  the current time in seconds since the Unix epoch accurate to the nearest microsecond. 
  */
static int jx9Builtin_microtime(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int bFloat = 0;
	sytime sTime;	
#if defined(__UNIXES__)
	struct timeval tv;
	gettimeofday(&tv, 0);
	sTime.tm_sec  = (long)tv.tv_sec;
	sTime.tm_usec = (long)tv.tv_usec;
#else
	time_t tt;
	time(&tt);
	sTime.tm_sec  = (long)tt;
	sTime.tm_usec = (long)(tt%SX_USEC_PER_SEC);
#endif /* __UNIXES__ */
	if( nArg > 0 ){
		bFloat = jx9_value_to_bool(apArg[0]);
	}
	if( bFloat ){
		/* Return as float */
		jx9_result_double(pCtx, (double)sTime.tm_sec);
	}else{
		/* Return as string */
		jx9_result_string_format(pCtx, "%ld %ld", sTime.tm_usec, sTime.tm_sec);
	}
	return JX9_OK;
}
/*
 * array getdate ([ int $timestamp = time() ])
 *  Get date/time information.
 * Parameter
 *  $timestamp: The optional timestamp parameter is an integer Unix timestamp
 *     that defaults to the current local time if a timestamp is not given.
 *     In other words, it defaults to the value of time().
 * Returns
 *  Returns an associative array of information related to the timestamp.
 *  Elements from the returned associative array are as follows: 
 *   KEY                                                         VALUE
 * ---------                                                    -------
 * "seconds" 	Numeric representation of seconds 	            0 to 59
 * "minutes" 	Numeric representation of minutes 	            0 to 59
 * "hours" 	    Numeric representation of hours 	            0 to 23
 * "mday" 	    Numeric representation of the day of the month 	1 to 31
 * "wday" 	    Numeric representation of the day of the week 	0 (for Sunday) through 6 (for Saturday)
 * "mon" 	    Numeric representation of a month 	            1 through 12
 * "year" 	    A full numeric representation of a year,        4 digits 	Examples: 1999 or 2003
 * "yday" 	    Numeric representation of the day of the year   0 through 365
 * "weekday" 	A full textual representation of the day of the week 	Sunday through Saturday
 * "month" 	    A full textual representation of a month, such as January or March 	January through December
 * 0 	        Seconds since the Unix Epoch, similar to the values returned by time() and used by date(). 
 * NOTE:
 *   NULL is returned on failure.
 */
static int jx9Builtin_getdate(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	jx9_value *pValue, *pArray;
	Sytm sTm;
	if( nArg < 1 ){
#ifdef __WINNT__
		SYSTEMTIME sOS;
		GetSystemTime(&sOS);
		SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
		struct tm *pTm;
		time_t t;
		time(&t);
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
	}else{
		/* Use the given timestamp */
		time_t t;
		struct tm *pTm;
#ifdef __WINNT__
#ifdef _MSC_VER
#if _MSC_VER >= 1400 /* Visual Studio 2005 and up */
#pragma warning(disable:4996) /* _CRT_SECURE...*/
#endif
#endif
#endif
		if( jx9_value_is_int(apArg[0]) ){
			t = (time_t)jx9_value_to_int64(apArg[0]);
			pTm = localtime(&t);
			if( pTm == 0 ){
				time(&t);
			}
		}else{
			time(&t);
		}
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
	}
	/* Element value */
	pValue = jx9_context_new_scalar(pCtx);
	if( pValue == 0 ){
		/* Return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Create a new array */
	pArray = jx9_context_new_array(pCtx);
	if( pArray == 0 ){
		/* Return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Fill the array */
	/* Seconds */
	jx9_value_int(pValue, sTm.tm_sec);
	jx9_array_add_strkey_elem(pArray, "seconds", pValue);
	/* Minutes */
	jx9_value_int(pValue, sTm.tm_min);
	jx9_array_add_strkey_elem(pArray, "minutes", pValue);
	/* Hours */
	jx9_value_int(pValue, sTm.tm_hour);
	jx9_array_add_strkey_elem(pArray, "hours", pValue);
	/* mday */
	jx9_value_int(pValue, sTm.tm_mday);
	jx9_array_add_strkey_elem(pArray, "mday", pValue);
	/* wday */
	jx9_value_int(pValue, sTm.tm_wday);
	jx9_array_add_strkey_elem(pArray, "wday", pValue);
	/* mon */
	jx9_value_int(pValue, sTm.tm_mon+1);
	jx9_array_add_strkey_elem(pArray, "mon", pValue);
	/* year */
	jx9_value_int(pValue, sTm.tm_year);
	jx9_array_add_strkey_elem(pArray, "year", pValue);
	/* yday */
	jx9_value_int(pValue, sTm.tm_yday);
	jx9_array_add_strkey_elem(pArray, "yday", pValue);
	/* Weekday */
	jx9_value_string(pValue, SyTimeGetDay(sTm.tm_wday), -1);
	jx9_array_add_strkey_elem(pArray, "weekday", pValue);
	/* Month */
	jx9_value_reset_string_cursor(pValue);
	jx9_value_string(pValue, SyTimeGetMonth(sTm.tm_mon), -1);
	jx9_array_add_strkey_elem(pArray, "month", pValue);
	/* Seconds since the epoch */
	jx9_value_int64(pValue, (jx9_int64)time(0));
	jx9_array_add_elem(pArray, 0 /* Index zero */, pValue);
	/* Return the freshly created array */
	jx9_result_value(pCtx, pArray);
	return JX9_OK;
}
/*
 * mixed gettimeofday([ bool $return_float = false ] )
 *   Returns an associative array containing the data returned from the system call.
 * Parameters
 *  $return_float
 *   When set to TRUE, a float instead of an array is returned.
 * Return
 *   By default an array is returned. If return_float is set, then
 *   a float is returned. 
 */
static int jx9Builtin_gettimeofday(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	int bFloat = 0;
	sytime sTime;
#if defined(__UNIXES__)
	struct timeval tv;
	gettimeofday(&tv, 0);
	sTime.tm_sec  = (long)tv.tv_sec;
	sTime.tm_usec = (long)tv.tv_usec;
#else
	time_t tt;
	time(&tt);
	sTime.tm_sec  = (long)tt;
	sTime.tm_usec = (long)(tt%SX_USEC_PER_SEC);
#endif /* __UNIXES__ */
	if( nArg > 0 ){
		bFloat = jx9_value_to_bool(apArg[0]);
	}
	if( bFloat ){
		/* Return as float */
		jx9_result_double(pCtx, (double)sTime.tm_sec);
	}else{
		/* Return an associative array */
		jx9_value *pValue, *pArray;
		/* Create a new array */
		pArray = jx9_context_new_array(pCtx);
		/* Element value */
		pValue = jx9_context_new_scalar(pCtx);
		if( pValue == 0 || pArray == 0 ){
			/* Return NULL */
			jx9_result_null(pCtx);
			return JX9_OK;
		}
		/* Fill the array */
		/* sec */
		jx9_value_int64(pValue, sTime.tm_sec);
		jx9_array_add_strkey_elem(pArray, "sec", pValue);
		/* usec */
		jx9_value_int64(pValue, sTime.tm_usec);
		jx9_array_add_strkey_elem(pArray, "usec", pValue);
		/* Return the array */
		jx9_result_value(pCtx, pArray);
	}
	return JX9_OK;
}
/* Check if the given year is leap or not */
#define IS_LEAP_YEAR(YEAR)	(YEAR % 400 ? ( YEAR % 100 ? ( YEAR % 4 ? 0 : 1 ) : 0 ) : 1)
/* ISO-8601 numeric representation of the day of the week */
static const int aISO8601[] = { 7 /* Sunday */, 1 /* Monday */, 2, 3, 4, 5, 6 };
/*
 * Format a given date string.
 * Supported format: (Taken from JX9 online docs)
 * character 	Description
 * d          Day of the month 
 * D          A textual representation of a days
 * j          Day of the month without leading zeros
 * l          A full textual representation of the day of the week 	
 * N          ISO-8601 numeric representation of the day of the week 
 * w          Numeric representation of the day of the week
 * z          The day of the year (starting from 0) 	
 * F          A full textual representation of a month, such as January or March
 * m          Numeric representation of a month, with leading zeros 	01 through 12
 * M          A short textual representation of a month, three letters 	Jan through Dec
 * n          Numeric representation of a month, without leading zeros 	1 through 12
 * t          Number of days in the given month 	28 through 31
 * L          Whether it's a leap year 	1 if it is a leap year, 0 otherwise.
 * o          ISO-8601 year number. This has the same value as Y, except that if the ISO week number
 *            (W) belongs to the previous or next year, that year is used instead. (added in JX9 5.1.0) Examples: 1999 or 2003
 * Y          A full numeric representation of a year, 4 digits 	Examples: 1999 or 2003
 * y          A two digit representation of a year 	Examples: 99 or 03
 * a          Lowercase Ante meridiem and Post meridiem 	am or pm
 * A          Uppercase Ante meridiem and Post meridiem 	AM or PM
 * g          12-hour format of an hour without leading zeros 	1 through 12
 * G          24-hour format of an hour without leading zeros 	0 through 23
 * h          12-hour format of an hour with leading zeros 	01 through 12
 * H          24-hour format of an hour with leading zeros 	00 through 23
 * i          Minutes with leading zeros 	00 to 59
 * s          Seconds, with leading zeros 	00 through 59
 * u          Microseconds Example: 654321
 * e          Timezone identifier 	Examples: UTC, GMT, Atlantic/Azores
 * I          (capital i) Whether or not the date is in daylight saving time 	1 if Daylight Saving Time, 0 otherwise.
 * r          RFC 2822 formatted date 	Example: Thu, 21 Dec 2000 16:01:07 +0200
 * U          Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)
 * S          English ordinal suffix for the day of the month, 2 characters
 * O          Difference to Greenwich time (GMT) in hours
 * Z          Timezone offset in seconds. The offset for timezones west of UTC is always negative, and for those
 *            east of UTC is always positive.
 * c         ISO 8601 date
 */
static sxi32 DateFormat(jx9_context *pCtx, const char *zIn, int nLen, Sytm *pTm)
{
	const char *zEnd = &zIn[nLen];
	const char *zCur;
	/* Start the format process */
	for(;;){
		if( zIn >= zEnd ){
			/* No more input to process */
			break;
		}
		switch(zIn[0]){
		case 'd':
			/* Day of the month, 2 digits with leading zeros */
			jx9_result_string_format(pCtx, "%02d", pTm->tm_mday);
			break;
		case 'D':
			/*A textual representation of a day, three letters*/
			zCur = SyTimeGetDay(pTm->tm_wday);
			jx9_result_string(pCtx, zCur, 3);
			break;
		case 'j':
			/*	Day of the month without leading zeros */
			jx9_result_string_format(pCtx, "%d", pTm->tm_mday);
			break;
		case 'l':
			/* A full textual representation of the day of the week */
			zCur = SyTimeGetDay(pTm->tm_wday);
			jx9_result_string(pCtx, zCur, -1/*Compute length automatically*/);
			break;
		case 'N':{
			/* ISO-8601 numeric representation of the day of the week */
			jx9_result_string_format(pCtx, "%d", aISO8601[pTm->tm_wday % 7 ]);
			break;
				 }
		case 'w':
			/*Numeric representation of the day of the week*/
			jx9_result_string_format(pCtx, "%d", pTm->tm_wday);
			break;
		case 'z':
			/*The day of the year*/
			jx9_result_string_format(pCtx, "%d", pTm->tm_yday);
			break;
		case 'F':
			/*A full textual representation of a month, such as January or March*/
			zCur = SyTimeGetMonth(pTm->tm_mon);
			jx9_result_string(pCtx, zCur, -1/*Compute length automatically*/);
			break;
		case 'm':
			/*Numeric representation of a month, with leading zeros*/
			jx9_result_string_format(pCtx, "%02d", pTm->tm_mon + 1);
			break;
		case 'M':
			/*A short textual representation of a month, three letters*/
			zCur = SyTimeGetMonth(pTm->tm_mon);
			jx9_result_string(pCtx, zCur, 3);
			break;
		case 'n':
			/*Numeric representation of a month, without leading zeros*/
			jx9_result_string_format(pCtx, "%d", pTm->tm_mon + 1);
			break;
		case 't':{
			static const int aMonDays[] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
			int nDays = aMonDays[pTm->tm_mon % 12 ];
			if( pTm->tm_mon == 1 /* 'February' */ && !IS_LEAP_YEAR(pTm->tm_year) ){
				nDays = 28;
			}
			/*Number of days in the given month*/
			jx9_result_string_format(pCtx, "%d", nDays);
			break;
				 }
		case 'L':{
			int isLeap = IS_LEAP_YEAR(pTm->tm_year);
			/* Whether it's a leap year */
			jx9_result_string_format(pCtx, "%d", isLeap);
			break;
				 }
		case 'o':
			/* ISO-8601 year number.*/
			jx9_result_string_format(pCtx, "%4d", pTm->tm_year);
			break;
		case 'Y':
			/*	A full numeric representation of a year, 4 digits */
			jx9_result_string_format(pCtx, "%4d", pTm->tm_year);
			break;
		case 'y':
			/*A two digit representation of a year*/
			jx9_result_string_format(pCtx, "%02d", pTm->tm_year%100);
			break;
		case 'a':
			/*	Lowercase Ante meridiem and Post meridiem */
			jx9_result_string(pCtx, pTm->tm_hour > 12 ? "pm" : "am", 2);
			break;
		case 'A':
			/*	Uppercase Ante meridiem and Post meridiem */
			jx9_result_string(pCtx, pTm->tm_hour > 12 ? "PM" : "AM", 2);
			break;
		case 'g':
			/*	12-hour format of an hour without leading zeros*/
			jx9_result_string_format(pCtx, "%d", 1+(pTm->tm_hour%12));
			break;
		case 'G':
			/* 24-hour format of an hour without leading zeros */
			jx9_result_string_format(pCtx, "%d", pTm->tm_hour);
			break;
		case 'h':
			/* 12-hour format of an hour with leading zeros */
			jx9_result_string_format(pCtx, "%02d", 1+(pTm->tm_hour%12));
			break;
		case 'H':
			/*	24-hour format of an hour with leading zeros */
			jx9_result_string_format(pCtx, "%02d", pTm->tm_hour);
			break;
		case 'i':
			/* 	Minutes with leading zeros */
			jx9_result_string_format(pCtx, "%02d", pTm->tm_min);
			break;
		case 's':
			/* 	second with leading zeros */
			jx9_result_string_format(pCtx, "%02d", pTm->tm_sec);
			break;
		case 'u':
			/* 	Microseconds */
			jx9_result_string_format(pCtx, "%u", pTm->tm_sec * SX_USEC_PER_SEC);
			break;
		case 'S':{
			/* English ordinal suffix for the day of the month, 2 characters */
			static const char zSuffix[] = "thstndrdthththththth";
			int v = pTm->tm_mday;
			jx9_result_string(pCtx, &zSuffix[2 * (int)(v / 10 % 10 != 1 ? v % 10 : 0)], (int)sizeof(char) * 2);
			break;
				 }
		case 'e':
			/* 	Timezone identifier */
			zCur = pTm->tm_zone;
			if( zCur == 0 ){
				/* Assume GMT */
				zCur = "GMT";
			}
			jx9_result_string(pCtx, zCur, -1);
			break;
		case 'I':
			/* Whether or not the date is in daylight saving time */
#ifdef __WINNT__
#ifdef _MSC_VER
#ifndef _WIN32_WCE
			_get_daylight(&pTm->tm_isdst);
#endif
#endif
#endif
			jx9_result_string_format(pCtx, "%d", pTm->tm_isdst == 1);
			break;
		case 'r':
			/* RFC 2822 formatted date 	Example: Thu, 21 Dec 2000 16:01:07 */
			jx9_result_string_format(pCtx, "%.3s, %02d %.3s %4d %02d:%02d:%02d", 
				SyTimeGetDay(pTm->tm_wday), 
				pTm->tm_mday, 
				SyTimeGetMonth(pTm->tm_mon), 
				pTm->tm_year, 
				pTm->tm_hour, 
				pTm->tm_min, 
				pTm->tm_sec
				);
			break;
		case 'U':{
			time_t tt;
			/* Seconds since the Unix Epoch */
			time(&tt);
			jx9_result_string_format(pCtx, "%u", (unsigned int)tt);
			break;
				 }
		case 'O':
		case 'P':
			/* Difference to Greenwich time (GMT) in hours */
			jx9_result_string_format(pCtx, "%+05d", pTm->tm_gmtoff);
			break;
		case 'Z':
			/* Timezone offset in seconds. The offset for timezones west of UTC
			 * is always negative, and for those east of UTC is always positive.
			 */
			jx9_result_string_format(pCtx, "%+05d", pTm->tm_gmtoff);
			break;
		case 'c':
			/* 	ISO 8601 date */
			jx9_result_string_format(pCtx, "%4d-%02d-%02dT%02d:%02d:%02d%+05d", 
				pTm->tm_year, 
				pTm->tm_mon+1, 
				pTm->tm_mday, 
				pTm->tm_hour, 
				pTm->tm_min, 
				pTm->tm_sec, 
				pTm->tm_gmtoff
				);
			break;
		case '\\':
			zIn++;
			/* Expand verbatim */
			if( zIn < zEnd ){
				jx9_result_string(pCtx, zIn, (int)sizeof(char));
			}
			break;
		default:
			/* Unknown format specifer, expand verbatim */
			jx9_result_string(pCtx, zIn, (int)sizeof(char));
			break;
		}
		/* Point to the next character */
		zIn++;
	}
	return SXRET_OK;
}
/*
 * JX9 implementation of the strftime() function.
 * The following formats are supported:
 * %a 	An abbreviated textual representation of the day
 * %A 	A full textual representation of the day
 * %d 	Two-digit day of the month (with leading zeros)
 * %e 	Day of the month, with a space preceding single digits.
 * %j 	Day of the year, 3 digits with leading zeros 
 * %u 	ISO-8601 numeric representation of the day of the week 	1 (for Monday) though 7 (for Sunday)
 * %w 	Numeric representation of the day of the week 0 (for Sunday) through 6 (for Saturday)
 * %U 	Week number of the given year, starting with the first Sunday as the first week
 * %V 	ISO-8601:1988 week number of the given year, starting with the first week of the year with at least
 *   4 weekdays, with Monday being the start of the week.
 * %W 	A numeric representation of the week of the year
 * %b 	Abbreviated month name, based on the locale
 * %B 	Full month name, based on the locale
 * %h 	Abbreviated month name, based on the locale (an alias of %b)
 * %m 	Two digit representation of the month
 * %C 	Two digit representation of the century (year divided by 100, truncated to an integer)
 * %g 	Two digit representation of the year going by ISO-8601:1988 standards (see %V)
 * %G 	The full four-digit version of %g
 * %y 	Two digit representation of the year
 * %Y 	Four digit representation for the year
 * %H 	Two digit representation of the hour in 24-hour format
 * %I 	Two digit representation of the hour in 12-hour format
 * %l (lower-case 'L') 	Hour in 12-hour format, with a space preceeding single digits
 * %M 	Two digit representation of the minute
 * %p 	UPPER-CASE 'AM' or 'PM' based on the given time
 * %P 	lower-case 'am' or 'pm' based on the given time
 * %r 	Same as "%I:%M:%S %p"
 * %R 	Same as "%H:%M"
 * %S 	Two digit representation of the second
 * %T 	Same as "%H:%M:%S"
 * %X 	Preferred time representation based on locale, without the date
 * %z 	Either the time zone offset from UTC or the abbreviation
 * %Z 	The time zone offset/abbreviation option NOT given by %z
 * %c 	Preferred date and time stamp based on local
 * %D 	Same as "%m/%d/%y"
 * %F 	Same as "%Y-%m-%d"
 * %s 	Unix Epoch Time timestamp (same as the time() function)
 * %x 	Preferred date representation based on locale, without the time
 * %n 	A newline character ("\n")
 * %t 	A Tab character ("\t")
 * %% 	A literal percentage character ("%")
 */
static int jx9Strftime(
	jx9_context *pCtx,  /* Call context */
	const char *zIn,    /* Input string */
	int nLen,           /* Input length */
	Sytm *pTm           /* Parse of the given time */
	)
{
	const char *zCur, *zEnd = &zIn[nLen];
	int c;
	/* Start the format process */
	for(;;){
		zCur = zIn;
		while(zIn < zEnd && zIn[0] != '%' ){
			zIn++;
		}
		if( zIn > zCur ){
			/* Consume input verbatim */
			jx9_result_string(pCtx, zCur, (int)(zIn-zCur));
		}
		zIn++; /* Jump the percent sign */
		if( zIn >= zEnd ){
			/* No more input to process */
			break;
		}
		c = zIn[0];
		/* Act according to the current specifer */
		switch(c){
		case '%':
			/* A literal percentage character ("%") */
			jx9_result_string(pCtx, "%", (int)sizeof(char));
			break;
		case 't':
			/* A Tab character */
			jx9_result_string(pCtx, "\t", (int)sizeof(char));
			break;
		case 'n':
			/* A newline character */
			jx9_result_string(pCtx, "\n", (int)sizeof(char));
			break;
		case 'a':
			/* An abbreviated textual representation of the day */
			jx9_result_string(pCtx, SyTimeGetDay(pTm->tm_wday), (int)sizeof(char)*3);
			break;
		case 'A':
			/* A full textual representation of the day */
			jx9_result_string(pCtx, SyTimeGetDay(pTm->tm_wday), -1/*Compute length automatically*/);
			break;
		case 'e':
			/* Day of the month, 2 digits with leading space for single digit*/
			jx9_result_string_format(pCtx, "%2d", pTm->tm_mday);
			break;
		case 'd':
			/* Two-digit day of the month (with leading zeros) */
			jx9_result_string_format(pCtx, "%02d", pTm->tm_mon+1);
			break;
		case 'j':
			/*The day of the year, 3 digits with leading zeros*/
			jx9_result_string_format(pCtx, "%03d", pTm->tm_yday);
			break;
		case 'u':
			/* ISO-8601 numeric representation of the day of the week */
			jx9_result_string_format(pCtx, "%d", aISO8601[pTm->tm_wday % 7 ]);
			break;
		case 'w':
			/* Numeric representation of the day of the week */
			jx9_result_string_format(pCtx, "%d", pTm->tm_wday);
			break;
		case 'b':
		case 'h':
			/*A short textual representation of a month, three letters (Not based on locale)*/
			jx9_result_string(pCtx, SyTimeGetMonth(pTm->tm_mon), (int)sizeof(char)*3);
			break;
		case 'B':
			/* Full month name (Not based on locale) */
			jx9_result_string(pCtx, SyTimeGetMonth(pTm->tm_mon), -1/*Compute length automatically*/);
			break;
		case 'm':
			/*Numeric representation of a month, with leading zeros*/
			jx9_result_string_format(pCtx, "%02d", pTm->tm_mon + 1);
			break;
		case 'C':
			/* Two digit representation of the century */
			jx9_result_string_format(pCtx, "%2d", pTm->tm_year/100);
			break;
		case 'y':
		case 'g':
			/* Two digit representation of the year */
			jx9_result_string_format(pCtx, "%2d", pTm->tm_year%100);
			break;
		case 'Y':
		case 'G':
			/* Four digit representation of the year */
			jx9_result_string_format(pCtx, "%4d", pTm->tm_year);
			break;
		case 'I':
			/* 12-hour format of an hour with leading zeros */
			jx9_result_string_format(pCtx, "%02d", 1+(pTm->tm_hour%12));
			break;
		case 'l':
			/* 12-hour format of an hour with leading space */
			jx9_result_string_format(pCtx, "%2d", 1+(pTm->tm_hour%12));
			break;
		case 'H':
			/* 24-hour format of an hour with leading zeros */
			jx9_result_string_format(pCtx, "%02d", pTm->tm_hour);
			break;
		case 'M':
			/* Minutes with leading zeros */
			jx9_result_string_format(pCtx, "%02d", pTm->tm_min);
			break;
		case 'S':
			/* Seconds with leading zeros */
			jx9_result_string_format(pCtx, "%02d", pTm->tm_sec);
			break;
		case 'z':
		case 'Z':
			/* 	Timezone identifier */
			zCur = pTm->tm_zone;
			if( zCur == 0 ){
				/* Assume GMT */
				zCur = "GMT";
			}
			jx9_result_string(pCtx, zCur, -1);
			break;
		case 'T':
		case 'X':
			/* Same as "%H:%M:%S" */
			jx9_result_string_format(pCtx, "%02d:%02d:%02d", pTm->tm_hour, pTm->tm_min, pTm->tm_sec);
			break;
		case 'R':
			/* Same as "%H:%M" */
			jx9_result_string_format(pCtx, "%02d:%02d", pTm->tm_hour, pTm->tm_min);
			break;
		case 'P':
			/*	Lowercase Ante meridiem and Post meridiem */
			jx9_result_string(pCtx, pTm->tm_hour > 12 ? "pm" : "am", (int)sizeof(char)*2);
			break;
		case 'p':
			/*	Uppercase Ante meridiem and Post meridiem */
			jx9_result_string(pCtx, pTm->tm_hour > 12 ? "PM" : "AM", (int)sizeof(char)*2);
			break;
		case 'r':
			/* Same as "%I:%M:%S %p" */
			jx9_result_string_format(pCtx, "%02d:%02d:%02d %s", 
				1+(pTm->tm_hour%12), 
				pTm->tm_min, 
				pTm->tm_sec, 
				pTm->tm_hour > 12 ? "PM" : "AM"
				);
			break;
		case 'D':
		case 'x':
			/* Same as "%m/%d/%y" */
			jx9_result_string_format(pCtx, "%02d/%02d/%02d", 
				pTm->tm_mon+1, 
				pTm->tm_mday, 
				pTm->tm_year%100
				);
			break;
		case 'F':
			/* Same as "%Y-%m-%d" */
			jx9_result_string_format(pCtx, "%d-%02d-%02d", 
				pTm->tm_year, 
				pTm->tm_mon+1, 
				pTm->tm_mday
				);
			break;
		case 'c':
			jx9_result_string_format(pCtx, "%d-%02d-%02d %02d:%02d:%02d", 
				pTm->tm_year, 
				pTm->tm_mon+1, 
				pTm->tm_mday, 
				pTm->tm_hour, 
				pTm->tm_min, 
				pTm->tm_sec
				);
			break;
		case 's':{
			time_t tt;
			/* Seconds since the Unix Epoch */
			time(&tt);
			jx9_result_string_format(pCtx, "%u", (unsigned int)tt);
			break;
				 }
		default:
			/* unknown specifer, simply ignore*/
			break;
		}
		/* Advance the cursor */
		zIn++;
	}
	return SXRET_OK;
}
/*
 * string date(string $format [, int $timestamp = time() ] )
 *  Returns a string formatted according to the given format string using
 *  the given integer timestamp or the current time if no timestamp is given.
 *  In other words, timestamp is optional and defaults to the value of time(). 
 * Parameters
 *  $format
 *   The format of the outputted date string (See code above)
 * $timestamp
 *   The optional timestamp parameter is an integer Unix timestamp
 *   that defaults to the current local time if a timestamp is not given.
 *   In other words, it defaults to the value of time(). 
 * Return
 *  A formatted date string. If a non-numeric value is used for timestamp, FALSE is returned.
 */
static int jx9Builtin_date(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zFormat;
	int nLen;
	Sytm sTm;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid argument, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	zFormat = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Don't bother processing return the empty string */
		jx9_result_string(pCtx, "", 0);
	}
	if( nArg < 2 ){
#ifdef __WINNT__
		SYSTEMTIME sOS;
		GetSystemTime(&sOS);
		SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
		struct tm *pTm;
		time_t t;
		time(&t);
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
	}else{
		/* Use the given timestamp */
		time_t t;
		struct tm *pTm;
		if( jx9_value_is_int(apArg[1]) ){
			t = (time_t)jx9_value_to_int64(apArg[1]);
			pTm = localtime(&t);
			if( pTm == 0 ){
				time(&t);
			}
		}else{
			time(&t);
		}
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
	}
	/* Format the given string */
	DateFormat(pCtx, zFormat, nLen, &sTm);
	return JX9_OK;
}
/*
 * string strftime(string $format [, int $timestamp = time() ] )
 *  Format a local time/date (PLATFORM INDEPENDANT IMPLEENTATION NOT BASED ON LOCALE)
 * Parameters
 *  $format
 *   The format of the outputted date string (See code above)
 * $timestamp
 *   The optional timestamp parameter is an integer Unix timestamp
 *   that defaults to the current local time if a timestamp is not given.
 *   In other words, it defaults to the value of time(). 
 * Return
 * Returns a string formatted according format using the given timestamp
 * or the current local time if no timestamp is given.
 */
static int jx9Builtin_strftime(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zFormat;
	int nLen;
	Sytm sTm;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid argument, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	zFormat = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Don't bother processing return FALSE */
		jx9_result_bool(pCtx, 0);
	}
	if( nArg < 2 ){
#ifdef __WINNT__
		SYSTEMTIME sOS;
		GetSystemTime(&sOS);
		SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
		struct tm *pTm;
		time_t t;
		time(&t);
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
	}else{
		/* Use the given timestamp */
		time_t t;
		struct tm *pTm;
		if( jx9_value_is_int(apArg[1]) ){
			t = (time_t)jx9_value_to_int64(apArg[1]);
			pTm = localtime(&t);
			if( pTm == 0 ){
				time(&t);
			}
		}else{
			time(&t);
		}
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
	}
	/* Format the given string */
	jx9Strftime(pCtx, zFormat, nLen, &sTm);
	if( jx9_context_result_buf_length(pCtx) < 1 ){
		/* Nothing was formatted, return FALSE */
		jx9_result_bool(pCtx, 0);
	}
	return JX9_OK;
}
/*
 * string gmdate(string $format [, int $timestamp = time() ] )
 *  Identical to the date() function except that the time returned
 *  is Greenwich Mean Time (GMT).
 * Parameters
 *  $format
 *  The format of the outputted date string (See code above)
 *  $timestamp
 *   The optional timestamp parameter is an integer Unix timestamp
 *   that defaults to the current local time if a timestamp is not given.
 *   In other words, it defaults to the value of time(). 
 * Return
 *  A formatted date string. If a non-numeric value is used for timestamp, FALSE is returned.
 */
static int jx9Builtin_gmdate(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zFormat;
	int nLen;
	Sytm sTm;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid argument, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	zFormat = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Don't bother processing return the empty string */
		jx9_result_string(pCtx, "", 0);
	}
	if( nArg < 2 ){
#ifdef __WINNT__
		SYSTEMTIME sOS;
		GetSystemTime(&sOS);
		SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
		struct tm *pTm;
		time_t t;
		time(&t);
		pTm = gmtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
	}else{
		/* Use the given timestamp */
		time_t t;
		struct tm *pTm;
		if( jx9_value_is_int(apArg[1]) ){
			t = (time_t)jx9_value_to_int64(apArg[1]);
			pTm = gmtime(&t);
			if( pTm == 0 ){
				time(&t);
			}
		}else{
			time(&t);
		}
		pTm = gmtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
	}
	/* Format the given string */
	DateFormat(pCtx, zFormat, nLen, &sTm);
	return JX9_OK;
}
/*
 * array localtime([ int $timestamp = time() [, bool $is_associative = false ]])
 *  Return the local time.
 * Parameter
 *  $timestamp: The optional timestamp parameter is an integer Unix timestamp
 *     that defaults to the current local time if a timestamp is not given.
 *     In other words, it defaults to the value of time().
 * $is_associative
 *   If set to FALSE or not supplied then the array is returned as a regular, numerically
 *   indexed array. If the argument is set to TRUE then localtime() returns an associative
 *   array containing all the different elements of the structure returned by the C function
 *   call to localtime. The names of the different keys of the associative array are as follows:
 *      "tm_sec" - seconds, 0 to 59
 *      "tm_min" - minutes, 0 to 59
 *      "tm_hour" - hours, 0 to 23
 *      "tm_mday" - day of the month, 1 to 31
 *      "tm_mon" - month of the year, 0 (Jan) to 11 (Dec)
 *      "tm_year" - years since 1900
 *      "tm_wday" - day of the week, 0 (Sun) to 6 (Sat)
 *      "tm_yday" - day of the year, 0 to 365
 *      "tm_isdst" - is daylight savings time in effect? Positive if yes, 0 if not, negative if unknown.
 * Returns
 *  An associative array of information related to the timestamp.
 */
static int jx9Builtin_localtime(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	jx9_value *pValue, *pArray;
	int isAssoc = 0;
	Sytm sTm;
	if( nArg < 1 ){
#ifdef __WINNT__
		SYSTEMTIME sOS;
		GetSystemTime(&sOS); /* TODO(chems): GMT not local */
		SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
		struct tm *pTm;
		time_t t;
		time(&t);
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
	}else{
		/* Use the given timestamp */
		time_t t;
		struct tm *pTm;
		if( jx9_value_is_int(apArg[0]) ){
			t = (time_t)jx9_value_to_int64(apArg[0]);
			pTm = localtime(&t);
			if( pTm == 0 ){
				time(&t);
			}
		}else{
			time(&t);
		}
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
	}
	/* Element value */
	pValue = jx9_context_new_scalar(pCtx);
	if( pValue == 0 ){
		/* Return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	/* Create a new array */
	pArray = jx9_context_new_array(pCtx);
	if( pArray == 0 ){
		/* Return NULL */
		jx9_result_null(pCtx);
		return JX9_OK;
	}
	if( nArg > 1 ){
		isAssoc = jx9_value_to_bool(apArg[1]); 
	}
	/* Fill the array */
	/* Seconds */
	jx9_value_int(pValue, sTm.tm_sec);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_sec", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* Minutes */
	jx9_value_int(pValue, sTm.tm_min);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_min", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* Hours */
	jx9_value_int(pValue, sTm.tm_hour);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_hour", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* mday */
	jx9_value_int(pValue, sTm.tm_mday);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_mday", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* mon */
	jx9_value_int(pValue, sTm.tm_mon);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_mon", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* year since 1900 */
	jx9_value_int(pValue, sTm.tm_year-1900);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_year", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* wday */
	jx9_value_int(pValue, sTm.tm_wday);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_wday", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* yday */
	jx9_value_int(pValue, sTm.tm_yday);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_yday", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* isdst */
#ifdef __WINNT__
#ifdef _MSC_VER
#ifndef _WIN32_WCE
			_get_daylight(&sTm.tm_isdst);
#endif
#endif
#endif
	jx9_value_int(pValue, sTm.tm_isdst);
	if( isAssoc ){
		jx9_array_add_strkey_elem(pArray, "tm_isdst", pValue);
	}else{
		jx9_array_add_elem(pArray, 0/* Automatic index */, pValue);
	}
	/* Return the array */
	jx9_result_value(pCtx, pArray);
	return JX9_OK;
}
/*
 * int idate(string $format [, int $timestamp = time() ])
 *  Returns a number formatted according to the given format string
 *  using the given integer timestamp or the current local time if 
 *  no timestamp is given. In other words, timestamp is optional and defaults
 *  to the value of time().
 *  Unlike the function date(), idate() accepts just one char in the format
 *  parameter.
 * $Parameters
 *  Supported format
 *   d 	Day of the month
 *   h 	Hour (12 hour format)
 *   H 	Hour (24 hour format)
 *   i 	Minutes
 *   I (uppercase i)1 if DST is activated, 0 otherwise
 *   L (uppercase l) returns 1 for leap year, 0 otherwise
 *   m 	Month number
 *   s 	Seconds
 *   t 	Days in current month
 *   U 	Seconds since the Unix Epoch - January 1 1970 00:00:00 UTC - this is the same as time()
 *   w 	Day of the week (0 on Sunday)
 *   W 	ISO-8601 week number of year, weeks starting on Monday
 *   y 	Year (1 or 2 digits - check note below)
 *   Y 	Year (4 digits)
 *   z 	Day of the year
 *   Z 	Timezone offset in seconds
 * $timestamp
 *  The optional timestamp parameter is an integer Unix timestamp that defaults
 *  to the current local time if a timestamp is not given. In other words, it defaults
 *  to the value of time(). 
 * Return
 *  An integer. 
 */
static int jx9Builtin_idate(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zFormat;
	jx9_int64 iVal = 0;
	int nLen;
	Sytm sTm;
	if( nArg < 1 || !jx9_value_is_string(apArg[0]) ){
		/* Missing/Invalid argument, return -1 */
		jx9_result_int(pCtx, -1);
		return JX9_OK;
	}
	zFormat = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Don't bother processing return -1*/
		jx9_result_int(pCtx, -1);
	}
	if( nArg < 2 ){
#ifdef __WINNT__
		SYSTEMTIME sOS;
		GetSystemTime(&sOS);
		SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
		struct tm *pTm;
		time_t t;
		time(&t);
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
	}else{
		/* Use the given timestamp */
		time_t t;
		struct tm *pTm;
		if( jx9_value_is_int(apArg[1]) ){
			t = (time_t)jx9_value_to_int64(apArg[1]);
			pTm = localtime(&t);
			if( pTm == 0 ){
				time(&t);
			}
		}else{
			time(&t);
		}
		pTm = localtime(&t);
		STRUCT_TM_TO_SYTM(pTm, &sTm);
	}
	/* Perform the requested operation */
	switch(zFormat[0]){
	case 'd':
		/* Day of the month */
		iVal = sTm.tm_mday;
		break;
	case 'h':
		/*	Hour (12 hour format)*/
		iVal = 1 + (sTm.tm_hour % 12);
		break;
	case 'H':
		/* Hour (24 hour format)*/
		iVal = sTm.tm_hour;
		break;
	case 'i':
		/*Minutes*/
		iVal = sTm.tm_min;
		break;
	case 'I':
		/*	returns 1 if DST is activated, 0 otherwise */
#ifdef __WINNT__
#ifdef _MSC_VER
#ifndef _WIN32_WCE
			_get_daylight(&sTm.tm_isdst);
#endif
#endif
#endif
		iVal = sTm.tm_isdst;
		break;
	case 'L':
		/* 	returns 1 for leap year, 0 otherwise */
		iVal = IS_LEAP_YEAR(sTm.tm_year);
		break;
	case 'm':
		/* Month number*/
		iVal = sTm.tm_mon;
		break;
	case 's':
		/*Seconds*/
		iVal = sTm.tm_sec;
		break;
	case 't':{
		/*Days in current month*/
		static const int aMonDays[] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
		int nDays = aMonDays[sTm.tm_mon % 12 ];
		if( sTm.tm_mon == 1 /* 'February' */ && !IS_LEAP_YEAR(sTm.tm_year) ){
			nDays = 28;
		}
		iVal = nDays;
		break;
			 }
	case 'U':
		/*Seconds since the Unix Epoch*/
		iVal = (jx9_int64)time(0);
		break;
	case 'w':
		/*	Day of the week (0 on Sunday) */
		iVal = sTm.tm_wday;
		break;
	case 'W': {
		/* ISO-8601 week number of year, weeks starting on Monday */
		static const int aISO8601[] = { 7 /* Sunday */, 1 /* Monday */, 2, 3, 4, 5, 6 };
		iVal = aISO8601[sTm.tm_wday % 7 ];
		break;
			  }
	case 'y':
		/* Year (2 digits) */
		iVal = sTm.tm_year % 100;
		break;
	case 'Y':
		/* Year (4 digits) */
		iVal = sTm.tm_year;
		break;
	case 'z':
		/* Day of the year */
		iVal = sTm.tm_yday;
		break;
	case 'Z':
		/*Timezone offset in seconds*/
		iVal = sTm.tm_gmtoff;
		break;
	default:
		/* unknown format, throw a warning */
		jx9_context_throw_error(pCtx, JX9_CTX_WARNING, "Unknown date format token");
		break;
	}
	/* Return the time value */
	jx9_result_int64(pCtx, iVal);
	return JX9_OK;
}
/*
 * int mktime/gmmktime([ int $hour = date("H") [, int $minute = date("i") [, int $second = date("s") 
 *  [, int $month = date("n") [, int $day = date("j") [, int $year = date("Y") [, int $is_dst = -1 ]]]]]]] )
 *  Returns the Unix timestamp corresponding to the arguments given. This timestamp is a 64bit integer 
 *  containing the number of seconds between the Unix Epoch (January 1 1970 00:00:00 GMT) and the time
 *  specified.
 *  Arguments may be left out in order from right to left; any arguments thus omitted will be set to
 *  the current value according to the local date and time.
 * Parameters
 * $hour
 *  The number of the hour relevant to the start of the day determined by month, day and year.
 *  Negative values reference the hour before midnight of the day in question. Values greater
 *  than 23 reference the appropriate hour in the following day(s).
 * $minute
 *  The number of the minute relevant to the start of the hour. Negative values reference
 *  the minute in the previous hour. Values greater than 59 reference the appropriate minute
 *  in the following hour(s).
 * $second
 *  The number of seconds relevant to the start of the minute. Negative values reference 
 *  the second in the previous minute. Values greater than 59 reference the appropriate 
 * second in the following minute(s).
 * $month
 *  The number of the month relevant to the end of the previous year. Values 1 to 12 reference
 *  the normal calendar months of the year in question. Values less than 1 (including negative values)
 *  reference the months in the previous year in reverse order, so 0 is December, -1 is November)...
 * $day
 *  The number of the day relevant to the end of the previous month. Values 1 to 28, 29, 30 or 31 
 *  (depending upon the month) reference the normal days in the relevant month. Values less than 1
 *  (including negative values) reference the days in the previous month, so 0 is the last day 
 *  of the previous month, -1 is the day before that, etc. Values greater than the number of days
 *  in the relevant month reference the appropriate day in the following month(s).
 * $year
 *  The number of the year, may be a two or four digit value, with values between 0-69 mapping
 *  to 2000-2069 and 70-100 to 1970-2000. On systems where time_t is a 32bit signed integer, as 
 *  most common today, the valid range for year is somewhere between 1901 and 2038.
 * $is_dst
 *  This parameter can be set to 1 if the time is during daylight savings time (DST), 0 if it is not, 
 *  or -1 (the default) if it is unknown whether the time is within daylight savings time or not. 
 * Return
 *   mktime() returns the Unix timestamp of the arguments given. 
 *   If the arguments are invalid, the function returns FALSE
 */
static int jx9Builtin_mktime(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zFunction;
	jx9_int64 iVal = 0;
	struct tm *pTm;
	time_t t;
	/* Extract function name */
	zFunction = jx9_function_name(pCtx);
	/* Get the current time */
	time(&t);
	if( zFunction[0] == 'g' /* gmmktime */ ){
		pTm = gmtime(&t);
	}else{
		/* localtime */
		pTm = localtime(&t);
	}
	if( nArg > 0 ){
		int iVal;
		/* Hour */
		iVal = jx9_value_to_int(apArg[0]);
		pTm->tm_hour = iVal;
		if( nArg > 1 ){
			/* Minutes */
			iVal = jx9_value_to_int(apArg[1]);
			pTm->tm_min = iVal;
			if( nArg > 2 ){
				/* Seconds */
				iVal = jx9_value_to_int(apArg[2]);
				pTm->tm_sec = iVal;
				if( nArg > 3 ){
					/* Month */
					iVal = jx9_value_to_int(apArg[3]);
					pTm->tm_mon = iVal - 1;
					if( nArg > 4 ){
						/* mday */
						iVal = jx9_value_to_int(apArg[4]);
						pTm->tm_mday = iVal;
						if( nArg > 5 ){
							/* Year */
							iVal = jx9_value_to_int(apArg[5]);
							if( iVal > 1900 ){
								iVal -= 1900;
							}
							pTm->tm_year = iVal;
							if( nArg > 6 ){
								/* is_dst */
								iVal = jx9_value_to_bool(apArg[6]);
								pTm->tm_isdst = iVal;
							}
						}
					}
				}
			}
		}
	}
	/* Make the time */
	iVal = (jx9_int64)mktime(pTm);
	/* Return the timesatmp as a 64bit integer */
	jx9_result_int64(pCtx, iVal);
	return JX9_OK;
}
/*
 * Section:
 *    URL handling Functions.
 * Authors:
 *    Symisc Systems, devel@symisc.net.
 *    Copyright (C) Symisc Systems, http://jx9.symisc.net
 * Status:
 *    Stable.
 */
/*
 * Output consumer callback for the standard Symisc routines.
 * [i.e: SyBase64Encode(), SyBase64Decode(), SyUriEncode(), ...].
 */
static int Consumer(const void *pData, unsigned int nLen, void *pUserData)
{
	/* Store in the call context result buffer */
	jx9_result_string((jx9_context *)pUserData, (const char *)pData, (int)nLen);
	return SXRET_OK;
}
/*
 * string base64_encode(string $data)
 * string convert_uuencode(string $data)  
 *  Encodes data with MIME base64
 * Parameter
 *  $data
 *    Data to encode
 * Return
 *  Encoded data or FALSE on failure.
 */
static int jx9Builtin_base64_encode(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the input string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Nothing to process, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the BASE64 encoding */
	SyBase64Encode(zIn, (sxu32)nLen, Consumer, pCtx);
	return JX9_OK;
}
/*
 * string base64_decode(string $data)
 * string convert_uudecode(string $data)
 *  Decodes data encoded with MIME base64
 * Parameter
 *  $data
 *    Encoded data.
 * Return
 *  Returns the original data or FALSE on failure.
 */
static int jx9Builtin_base64_decode(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the input string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Nothing to process, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the BASE64 decoding */
	SyBase64Decode(zIn, (sxu32)nLen, Consumer, pCtx);
	return JX9_OK;
}
/*
 * string urlencode(string $str)
 *  URL encoding
 * Parameter
 *  $data
 *   Input string.
 * Return
 *  Returns a string in which all non-alphanumeric characters except -_. have
 *  been replaced with a percent (%) sign followed by two hex digits and spaces
 *  encoded as plus (+) signs.
 */
static int jx9Builtin_urlencode(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the input string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Nothing to process, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the URL encoding */
	SyUriEncode(zIn, (sxu32)nLen, Consumer, pCtx);
	return JX9_OK;
}
/*
 * string urldecode(string $str)
 *  Decodes any %## encoding in the given string.
 *  Plus symbols ('+') are decoded to a space character. 
 * Parameter
 *  $data
 *    Input string.
 * Return
 *  Decoded URL or FALSE on failure.
 */
static int jx9Builtin_urldecode(jx9_context *pCtx, int nArg, jx9_value **apArg)
{
	const char *zIn;
	int nLen;
	if( nArg < 1 ){
		/* Missing arguments, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Extract the input string */
	zIn = jx9_value_to_string(apArg[0], &nLen);
	if( nLen < 1 ){
		/* Nothing to process, return FALSE */
		jx9_result_bool(pCtx, 0);
		return JX9_OK;
	}
	/* Perform the URL decoding */
	SyUriDecode(zIn, (sxu32)nLen, Consumer, pCtx, TRUE);
	return JX9_OK;
}
#endif /* JX9_DISABLE_BUILTIN_FUNC */
/* Table of the built-in functions */
static const jx9_builtin_func aBuiltInFunc[] = {
	   /* Variable handling functions */
	{ "is_bool"    , jx9Builtin_is_bool     }, 
	{ "is_float"   , jx9Builtin_is_float    }, 
	{ "is_real"    , jx9Builtin_is_float    }, 
	{ "is_double"  , jx9Builtin_is_float    }, 
	{ "is_int"     , jx9Builtin_is_int      }, 
	{ "is_integer" , jx9Builtin_is_int      }, 
	{ "is_long"    , jx9Builtin_is_int      }, 
	{ "is_string"  , jx9Builtin_is_string   }, 
	{ "is_null"    , jx9Builtin_is_null     }, 
	{ "is_numeric" , jx9Builtin_is_numeric  }, 
	{ "is_scalar"  , jx9Builtin_is_scalar   }, 
	{ "is_array"   , jx9Builtin_is_array    }, 
	{ "is_object"  , jx9Builtin_is_object   }, 
	{ "is_resource", jx9Builtin_is_resource }, 
	{ "douleval"   , jx9Builtin_floatval    }, 
	{ "floatval"   , jx9Builtin_floatval    }, 
	{ "intval"     , jx9Builtin_intval      }, 
	{ "strval"     , jx9Builtin_strval      }, 
	{ "empty"      , jx9Builtin_empty       }, 
#ifndef JX9_DISABLE_BUILTIN_FUNC
#ifdef JX9_ENABLE_MATH_FUNC
	   /* Math functions */
	{ "abs"  ,    jx9Builtin_abs          }, 
	{ "sqrt" ,    jx9Builtin_sqrt         }, 
	{ "exp"  ,    jx9Builtin_exp          }, 
	{ "floor",    jx9Builtin_floor        }, 
	{ "cos"  ,    jx9Builtin_cos          }, 
	{ "sin"  ,    jx9Builtin_sin          }, 
	{ "acos" ,    jx9Builtin_acos         }, 
	{ "asin" ,    jx9Builtin_asin         }, 
	{ "cosh" ,    jx9Builtin_cosh         }, 
	{ "sinh" ,    jx9Builtin_sinh         }, 
	{ "ceil" ,    jx9Builtin_ceil         }, 
	{ "tan"  ,    jx9Builtin_tan          }, 
	{ "tanh" ,    jx9Builtin_tanh         }, 
	{ "atan" ,    jx9Builtin_atan         }, 
	{ "atan2",    jx9Builtin_atan2        }, 
	{ "log"  ,    jx9Builtin_log          }, 
	{ "log10" ,   jx9Builtin_log10        }, 
	{ "pow"  ,    jx9Builtin_pow          }, 
	{ "pi",       jx9Builtin_pi           }, 
	{ "fmod",     jx9Builtin_fmod         }, 
	{ "hypot",    jx9Builtin_hypot        }, 
#endif /* JX9_ENABLE_MATH_FUNC */
	{ "round",    jx9Builtin_round        }, 
	{ "dechex", jx9Builtin_dechex         }, 
	{ "decoct", jx9Builtin_decoct         }, 
	{ "decbin", jx9Builtin_decbin         }, 
	{ "hexdec", jx9Builtin_hexdec         }, 
	{ "bindec", jx9Builtin_bindec         }, 
	{ "octdec", jx9Builtin_octdec         }, 
	{ "base_convert", jx9Builtin_base_convert }, 
	   /* String handling functions */
	{ "substr",          jx9Builtin_substr     }, 
	{ "substr_compare",  jx9Builtin_substr_compare }, 
	{ "substr_count",    jx9Builtin_substr_count }, 
	{ "chunk_split",     jx9Builtin_chunk_split}, 
	{ "htmlspecialchars", jx9Builtin_htmlspecialchars }, 
	{ "htmlspecialchars_decode", jx9Builtin_htmlspecialchars_decode }, 
	{ "get_html_translation_table", jx9Builtin_get_html_translation_table }, 
	{ "htmlentities", jx9Builtin_htmlentities}, 
	{ "html_entity_decode", jx9Builtin_html_entity_decode}, 
	{ "strlen"     , jx9Builtin_strlen     }, 
	{ "strcmp"     , jx9Builtin_strcmp     }, 
	{ "strcoll"    , jx9Builtin_strcmp     }, 
	{ "strncmp"    , jx9Builtin_strncmp    }, 
	{ "strcasecmp" , jx9Builtin_strcasecmp }, 
	{ "strncasecmp", jx9Builtin_strncasecmp}, 
	{ "implode"    , jx9Builtin_implode    }, 
	{ "join"       , jx9Builtin_implode    }, 
	{ "implode_recursive" , jx9Builtin_implode_recursive }, 
	{ "join_recursive"    , jx9Builtin_implode_recursive }, 
	{ "explode"     , jx9Builtin_explode    }, 
	{ "trim"        , jx9Builtin_trim       }, 
	{ "rtrim"       , jx9Builtin_rtrim      }, 
	{ "chop"        , jx9Builtin_rtrim      }, 
	{ "ltrim"       , jx9Builtin_ltrim      }, 
	{ "strtolower",   jx9Builtin_strtolower }, 
	{ "mb_strtolower", jx9Builtin_strtolower }, /* Only UTF-8 encoding is supported */
	{ "strtoupper",   jx9Builtin_strtoupper }, 
	{ "mb_strtoupper", jx9Builtin_strtoupper }, /* Only UTF-8 encoding is supported */
	{ "ord",          jx9Builtin_ord        }, 
	{ "chr",          jx9Builtin_chr        }, 
	{ "bin2hex",      jx9Builtin_bin2hex    }, 
	{ "strstr",       jx9Builtin_strstr     }, 
	{ "stristr",      jx9Builtin_stristr    }, 
	{ "strchr",       jx9Builtin_strstr     }, 
	{ "strpos",       jx9Builtin_strpos     }, 
	{ "stripos",      jx9Builtin_stripos    }, 
	{ "strrpos",      jx9Builtin_strrpos    }, 
	{ "strripos",     jx9Builtin_strripos   }, 
	{ "strrchr",      jx9Builtin_strrchr    }, 
	{ "strrev",       jx9Builtin_strrev     }, 
	{ "str_repeat",   jx9Builtin_str_repeat }, 
	{ "nl2br",        jx9Builtin_nl2br      }, 
	{ "sprintf",      jx9Builtin_sprintf    }, 
	{ "printf",       jx9Builtin_printf     }, 
	{ "vprintf",      jx9Builtin_vprintf    }, 
	{ "vsprintf",     jx9Builtin_vsprintf   }, 
	{ "size_format",  jx9Builtin_size_format}, 
#if !defined(JX9_DISABLE_HASH_FUNC)
	{ "md5",          jx9Builtin_md5       }, 
	{ "sha1",         jx9Builtin_sha1      }, 
	{ "crc32",        jx9Builtin_crc32     }, 
#endif /* JX9_DISABLE_HASH_FUNC */
	{ "str_getcsv",   jx9Builtin_str_getcsv }, 
	{ "strip_tags",   jx9Builtin_strip_tags }, 
	{ "str_split",    jx9Builtin_str_split  }, 
	{ "strspn",       jx9Builtin_strspn     }, 
	{ "strcspn",      jx9Builtin_strcspn    }, 
	{ "strpbrk",      jx9Builtin_strpbrk    }, 
	{ "soundex",      jx9Builtin_soundex    }, 
	{ "wordwrap",     jx9Builtin_wordwrap   }, 
	{ "strtok",       jx9Builtin_strtok     }, 
	{ "str_pad",      jx9Builtin_str_pad    }, 
	{ "str_replace",  jx9Builtin_str_replace}, 
	{ "str_ireplace", jx9Builtin_str_replace}, 
	{ "strtr",        jx9Builtin_strtr      }, 
	{ "parse_ini_string", jx9Builtin_parse_ini_string}, 
	         /* Ctype functions */
	{ "ctype_alnum", jx9Builtin_ctype_alnum }, 
	{ "ctype_alpha", jx9Builtin_ctype_alpha }, 
	{ "ctype_cntrl", jx9Builtin_ctype_cntrl }, 
	{ "ctype_digit", jx9Builtin_ctype_digit }, 
	{ "ctype_xdigit", jx9Builtin_ctype_xdigit}, 
	{ "ctype_graph", jx9Builtin_ctype_graph }, 
	{ "ctype_print", jx9Builtin_ctype_print }, 
	{ "ctype_punct", jx9Builtin_ctype_punct }, 
	{ "ctype_space", jx9Builtin_ctype_space }, 
	{ "ctype_lower", jx9Builtin_ctype_lower }, 
	{ "ctype_upper", jx9Builtin_ctype_upper }, 
	         /* Time functions */
	{ "time"    ,    jx9Builtin_time         }, 
	{ "microtime",   jx9Builtin_microtime    }, 
	{ "getdate" ,    jx9Builtin_getdate      }, 
	{ "gettimeofday", jx9Builtin_gettimeofday }, 
	{ "date",        jx9Builtin_date         }, 
	{ "strftime",    jx9Builtin_strftime     }, 
	{ "idate",       jx9Builtin_idate        }, 
	{ "gmdate",      jx9Builtin_gmdate       }, 
	{ "localtime",   jx9Builtin_localtime    }, 
	{ "mktime",      jx9Builtin_mktime       }, 
	{ "gmmktime",    jx9Builtin_mktime       }, 
	        /* URL functions */
	{ "base64_encode", jx9Builtin_base64_encode }, 
	{ "base64_decode", jx9Builtin_base64_decode }, 
	{ "convert_uuencode", jx9Builtin_base64_encode }, 
	{ "convert_uudecode", jx9Builtin_base64_decode }, 
	{ "urlencode",    jx9Builtin_urlencode }, 
	{ "urldecode",    jx9Builtin_urldecode }, 
	{ "rawurlencode", jx9Builtin_urlencode }, 
	{ "rawurldecode", jx9Builtin_urldecode }, 
#endif /* JX9_DISABLE_BUILTIN_FUNC */
};
/*
 * Register the built-in functions defined above, the array functions 
 * defined in hashmap.c and the IO functions defined in vfs.c.
 */
JX9_PRIVATE void jx9RegisterBuiltInFunction(jx9_vm *pVm)
{
	sxu32 n;
	for( n = 0 ; n < SX_ARRAYSIZE(aBuiltInFunc) ; ++n ){
		jx9_create_function(&(*pVm), aBuiltInFunc[n].zName, aBuiltInFunc[n].xFunc, 0);
	}
	/* Register hashmap functions [i.e: sort(), count(), array_diff(), ...] */
	jx9RegisterHashmapFunctions(&(*pVm));
	/* Register IO functions [i.e: fread(), fwrite(), chdir(), mkdir(), file(), ...] */
	jx9RegisterIORoutine(&(*pVm));
}