The Tor Browser: js/src/v8/earley-boyer.js@6474c204b198 (annotated)

js/src/v8/earley-boyer.js@6474c204b198 (annotated)

js/src/v8/earley-boyer.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 // This file is automatically generated by scheme2js, except for the
 // benchmark harness code at the beginning and end of the file.
 var EarleyBoyer = new BenchmarkSuite('EarleyBoyer', 666463, [
   new Benchmark("Earley", function () { BgL_earleyzd2benchmarkzd2(); }),
   new Benchmark("Boyer", function () { BgL_nboyerzd2benchmarkzd2(); })
 ]);
 /************* GENERATED FILE - DO NOT EDIT *************/
 /************* GENERATED FILE - DO NOT EDIT *************/
 /************* GENERATED FILE - DO NOT EDIT *************/
 /************* GENERATED FILE - DO NOT EDIT *************/
 /************* GENERATED FILE - DO NOT EDIT *************/
 /************* GENERATED FILE - DO NOT EDIT *************/
 /************* GENERATED FILE - DO NOT EDIT *************/
 /************* GENERATED FILE - DO NOT EDIT *************/
 /*
  * To use write/prints/... the default-output port has to be set first.
  * Simply setting SC_DEFAULT_OUT and SC_ERROR_OUT to the desired values
  * should do the trick.
  * In the following example the std-out and error-port are redirected to
  * a DIV.
 function initRuntime() {
     function escapeHTML(s) {
 	var tmp = s;
 	tmp = tmp.replace(/&/g, "&amp;");
 	tmp = tmp.replace(/</g, "&lt;");
 	tmp = tmp.replace(/>/g, "&gt;");
 	tmp = tmp.replace(/ /g, "&nbsp;");
 	tmp = tmp.replace(/\n/g, "<br />");
 	tmp = tmp.replace(/\t/g, "&nbsp;&nbsp;&nbsp;&nbsp");
 	return tmp;
     }
     document.write("<div id='stdout'></div>");
     SC_DEFAULT_OUT = new sc_GenericOutputPort(
 	function(s) {
 	    var stdout = document.getElementById('stdout');
 	    stdout.innerHTML = stdout.innerHTML + escapeHTML(s);
 	});
     SC_ERROR_OUT = SC_DEFAULT_OUT;
 }
 */
 function sc_print_debug() {
     sc_print.apply(null, arguments);
 }
 /*** META ((export *js*)) */
 var sc_JS_GLOBALS = this;
 var __sc_LINE=-1;
 var __sc_FILE="";
 /*** META ((export #t)) */
 function sc_alert() {
    var len = arguments.length;
    var s = "";
    var i;
    for( i = 0; i < len; i++ ) {
        s += sc_toDisplayString(arguments[ i ]);
    }
    return alert( s );
 }
 /*** META ((export #t)) */
 function sc_typeof( x ) {
    return typeof x;
 }
 /*** META ((export #t)) */
 function sc_error() {
     var a = [sc_jsstring2symbol("*error*")];
     for (var i = 0; i < arguments.length; i++) {
 	a[i+1] = arguments[i];
     }
     throw a;
 }
 /*** META ((export #t)
            (peephole (prefix "throw ")))
 */
 function sc_raise(obj) {
     throw obj;
 }
 /*** META ((export with-handler-lambda)) */
 function sc_withHandlerLambda(handler, body) {
     try {
 	return body();
     } catch(e) {
 	if (!e._internalException)
 	    return handler(e);
 	else
 	    throw e;
     }
 }
 var sc_properties = new Object();
 /*** META ((export #t)) */
 function sc_putpropBang(sym, key, val) {
     var ht = sc_properties[sym];
     if (!ht) {
 	ht = new Object();
 	sc_properties[sym] = ht;
     }
     ht[key] = val;
 }
 /*** META ((export #t)) */
 function sc_getprop(sym, key) {
     var ht = sc_properties[sym];
     if (ht) {
 	if (key in ht)
 	    return ht[key];
 	else
 	    return false;
     } else
 	return false;
 }
 /*** META ((export #t)) */
 function sc_rempropBang(sym, key) {
     var ht = sc_properties[sym];
     if (ht)
 	delete ht[key];
 }
 /*** META ((export #t)) */
 function sc_any2String(o) {
     return jsstring2string(sc_toDisplayString(o));
 }
 /*** META ((export #t)
            (peephole (infix 2 2 "==="))
            (type bool))
 */
 function sc_isEqv(o1, o2) {
     return (o1 === o2);
 }
 /*** META ((export #t)
            (peephole (infix 2 2 "==="))
            (type bool))
 */
 function sc_isEq(o1, o2) {
     return (o1 === o2);
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isNumber(n) {
     return (typeof n === "number");
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isComplex(n) {
     return sc_isNumber(n);
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isReal(n) {
     return sc_isNumber(n);
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isRational(n) {
     return sc_isReal(n);
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isInteger(n) {
     return (parseInt(n) === n);
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix ", false")))
 */
 // we don't have exact numbers...
 function sc_isExact(n) {
     return false;
 }
 /*** META ((export #t)
            (peephole (postfix ", true"))
 	   (type bool))
 */
 function sc_isInexact(n) {
     return true;
 }
 /*** META ((export = =fx =fl)
            (type bool)
            (peephole (infix 2 2 "===")))
 */
 function sc_equal(x) {
     for (var i = 1; i < arguments.length; i++)
 	if (x !== arguments[i])
 	    return false;
     return true;
 }
 /*** META ((export < <fx <fl)
            (type bool)
            (peephole (infix 2 2 "<")))
 */
 function sc_less(x) {
     for (var i = 1; i < arguments.length; i++) {
 	if (x >= arguments[i])
 	    return false;
 	x = arguments[i];
     }
     return true;
 }
 /*** META ((export > >fx >fl)
            (type bool)
            (peephole (infix 2 2 ">")))
 */
 function sc_greater(x, y) {
     for (var i = 1; i < arguments.length; i++) {
 	if (x <= arguments[i])
 	    return false;
 	x = arguments[i];
     }
     return true;
 }
 /*** META ((export <= <=fx <=fl)
            (type bool)
            (peephole (infix 2 2 "<=")))
 */
 function sc_lessEqual(x, y) {
     for (var i = 1; i < arguments.length; i++) {
 	if (x > arguments[i])
 	    return false;
 	x = arguments[i];
     }
     return true;
 }
 /*** META ((export >= >=fl >=fx)
            (type bool)
            (peephole (infix 2 2 ">=")))
 */
 function sc_greaterEqual(x, y) {
     for (var i = 1; i < arguments.length; i++) {
 	if (x < arguments[i])
 	    return false;
 	x = arguments[i];
     }
     return true;
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix "=== 0")))
 */
 function sc_isZero(x) {
     return (x === 0);
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix "> 0")))
 */
 function sc_isPositive(x) {
     return (x > 0);
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix "< 0")))
 */
 function sc_isNegative(x) {
     return (x < 0);
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix "%2===1")))
 */
 function sc_isOdd(x) {
     return (x % 2 === 1);
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix "%2===0")))
 */
 function sc_isEven(x) {
     return (x % 2 === 0);
 }
 /*** META ((export #t)) */
 var sc_max = Math.max;
 /*** META ((export #t)) */
 var sc_min = Math.min;
 /*** META ((export + +fx +fl)
            (peephole (infix 0 #f "+" "0")))
 */
 function sc_plus() {
     var sum = 0;
     for (var i = 0; i < arguments.length; i++)
 	sum += arguments[i];
     return sum;
 }
 /*** META ((export * *fx *fl)
            (peephole (infix 0 #f "*" "1")))
 */
 function sc_multi() {
     var product = 1;
     for (var i = 0; i < arguments.length; i++)
 	product *= arguments[i];
     return product;
 }
 /*** META ((export - -fx -fl)
            (peephole (minus)))
 */
 function sc_minus(x) {
     if (arguments.length === 1)
 	return -x;
     else {
 	var res = x;
 	for (var i = 1; i < arguments.length; i++)
 	    res -= arguments[i];
 	return res;
     }
 }
 /*** META ((export / /fl)
            (peephole (div)))
 */
 function sc_div(x) {
     if (arguments.length === 1)
 	return 1/x;
     else {
 	var res = x;
 	for (var i = 1; i < arguments.length; i++)
 	    res /= arguments[i];
 	return res;
     }
 }
 /*** META ((export #t)) */
 var sc_abs = Math.abs;
 /*** META ((export quotient /fx)
            (peephole (hole 2 "parseInt(" x "/" y ")")))
 */
 function sc_quotient(x, y) {
     return parseInt(x / y);
 }
 /*** META ((export #t)
            (peephole (infix 2 2 "%")))
 */
 function sc_remainder(x, y) {
     return x % y;
 }
 /*** META ((export #t)
            (peephole (modulo)))
 */
 function sc_modulo(x, y) {
     var remainder = x % y;
     // if they don't have the same sign
     if ((remainder * y) < 0)
 	return remainder + y;
     else
 	return remainder;
 }
 function sc_euclid_gcd(a, b) {
     var temp;
     if (a === 0) return b;
     if (b === 0) return a;
     if (a < 0) {a = -a;};
     if (b < 0) {b = -b;};
     if (b > a) {temp = a; a = b; b = temp;};
     while (true) {
 	a %= b;
 	if(a === 0) {return b;};
 	b %= a;
 	if(b === 0) {return a;};
     };
     return b;
 }
 /*** META ((export #t)) */
 function sc_gcd() {
     var gcd = 0;
     for (var i = 0; i < arguments.length; i++)
 	gcd = sc_euclid_gcd(gcd, arguments[i]);
     return gcd;
 }
 /*** META ((export #t)) */
 function sc_lcm() {
     var lcm = 1;
     for (var i = 0; i < arguments.length; i++) {
 	var f = Math.round(arguments[i] / sc_euclid_gcd(arguments[i], lcm));
 	lcm *= Math.abs(f);
     }
     return lcm;
 }
 // LIMITATION: numerator and denominator don't make sense in floating point world.
 //var SC_MAX_DECIMALS = 1000000
 //
 // function sc_numerator(x) {
 //     var rounded = Math.round(x * SC_MAX_DECIMALS);
 //     return Math.round(rounded / sc_euclid_gcd(rounded, SC_MAX_DECIMALS));
 // }
 // function sc_denominator(x) {
 //     var rounded = Math.round(x * SC_MAX_DECIMALS);
 //     return Math.round(SC_MAX_DECIMALS / sc_euclid_gcd(rounded, SC_MAX_DECIMALS));
 // }
 /*** META ((export #t)) */
 var sc_floor = Math.floor;
 /*** META ((export #t)) */
 var sc_ceiling = Math.ceil;
 /*** META ((export #t)) */
 var sc_truncate = parseInt;
 /*** META ((export #t)) */
 var sc_round = Math.round;
 // LIMITATION: sc_rationalize doesn't make sense in a floating point world.
 /*** META ((export #t)) */
 var sc_exp = Math.exp;
 /*** META ((export #t)) */
 var sc_log = Math.log;
 /*** META ((export #t)) */
 var sc_sin = Math.sin;
 /*** META ((export #t)) */
 var sc_cos = Math.cos;
 /*** META ((export #t)) */
 var sc_tan = Math.tan;
 /*** META ((export #t)) */
 var sc_asin = Math.asin;
 /*** META ((export #t)) */
 var sc_acos = Math.acos;
 /*** META ((export #t)) */
 var sc_atan = Math.atan;
 /*** META ((export #t)) */
 var sc_sqrt = Math.sqrt;
 /*** META ((export #t)) */
 var sc_expt = Math.pow;
 // LIMITATION: we don't have complex numbers.
 // LIMITATION: the following functions are hence not implemented.
 // LIMITATION: make-rectangular, make-polar, real-part, imag-part, magnitude, angle
 // LIMITATION: 2 argument atan
 /*** META ((export #t)
            (peephole (id)))
 */
 function sc_exact2inexact(x) {
     return x;
 }
 /*** META ((export #t)
            (peephole (id)))
 */
 function sc_inexact2exact(x) {
     return x;
 }
 function sc_number2jsstring(x, radix) {
     if (radix)
 	return x.toString(radix);
     else
 	return x.toString();
 }
 function sc_jsstring2number(s, radix) {
     if (s === "") return false;
     if (radix) {
 	var t = parseInt(s, radix);
 	if (!t && t !== 0) return false;
 	// verify that each char is in range. (parseInt ignores leading
 	// white and trailing chars)
 	var allowedChars = "01234567890abcdefghijklmnopqrstuvwxyz".substring(0, radix+1);
 	if ((new RegExp("^["+allowedChars+"]*$", "i")).test(s))
 	    return t;
 	else return false;
     } else {
 	var t = +s; // does not ignore trailing chars.
 	if (!t && t !== 0) return false;
 	// simply verify that first char is not whitespace.
 	var c = s.charAt(0);
 	// if +c is 0, but the char is not "0", then we have a whitespace.
 	if (+c === 0 && c !== "0") return false;
 	return t;
     }
 }
 /*** META ((export #t)
            (type bool)
            (peephole (not)))
 */
 function sc_not(b) {
     return b === false;
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isBoolean(b) {
     return (b === true) || (b === false);
 }
 function sc_Pair(car, cdr) {
     this.car = car;
     this.cdr = cdr;
 }
 sc_Pair.prototype.toString = function() {
     return sc_toDisplayString(this);
 };
 sc_Pair.prototype.sc_toWriteOrDisplayString = function(writeOrDisplay) {
     var current = this;
     var res = "(";
     while(true) {
 	res += writeOrDisplay(current.car);
 	if (sc_isPair(current.cdr)) {
 	    res += " ";
 	    current = current.cdr;
 	} else if (current.cdr !== null) {
 	    res += " . " + writeOrDisplay(current.cdr);
 	    break;
 	} else // current.cdr == null
 	    break;
     }
     res += ")";
     return res;
 };
 sc_Pair.prototype.sc_toDisplayString = function() {
     return this.sc_toWriteOrDisplayString(sc_toDisplayString);
 };
 sc_Pair.prototype.sc_toWriteString = function() {
     return this.sc_toWriteOrDisplayString(sc_toWriteString);
 };
 // sc_Pair.prototype.sc_toWriteCircleString in IO.js
 /*** META ((export #t)
            (type bool)
            (peephole (postfix " instanceof sc_Pair")))
 */
 function sc_isPair(p) {
     return (p instanceof sc_Pair);
 }
 function sc_isPairEqual(p1, p2, comp) {
     return (comp(p1.car, p2.car) && comp(p1.cdr, p2.cdr));
 }
 /*** META ((export #t)
            (peephole (hole 2 "new sc_Pair(" car ", " cdr ")")))
 */
 function sc_cons(car, cdr) {
     return new sc_Pair(car, cdr);
 }
 /*** META ((export cons*)) */
 function sc_consStar() {
     var res = arguments[arguments.length - 1];
     for (var i = arguments.length-2; i >= 0; i--)
 	res = new sc_Pair(arguments[i], res);
     return res;
 }
 /*** META ((export #t)
            (peephole (postfix ".car")))
 */
 function sc_car(p) {
     return p.car;
 }
 /*** META ((export #t)
            (peephole (postfix ".cdr")))
 */
 function sc_cdr(p) {
     return p.cdr;
 }
 /*** META ((export #t)
            (peephole (hole 2 p ".car = " val)))
 */
 function sc_setCarBang(p, val) {
     p.car = val;
 }
 /*** META ((export #t)
            (peephole (hole 2 p ".cdr = " val)))
 */
 function sc_setCdrBang(p, val) {
     p.cdr = val;
 }
 /*** META ((export #t)
            (peephole (postfix ".car.car")))
 */
 function sc_caar(p) { return p.car.car; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.car")))
 */
 function sc_cadr(p) { return p.cdr.car; }
 /*** META ((export #t)
            (peephole (postfix ".car.cdr")))
 */
 function sc_cdar(p) { return p.car.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.cdr")))
 */
 function sc_cddr(p) { return p.cdr.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".car.car.car")))
 */
 function sc_caaar(p) { return p.car.car.car; }
 /*** META ((export #t)
            (peephole (postfix ".car.cdr.car")))
 */
 function sc_cadar(p) { return p.car.cdr.car; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.car.car")))
 */
 function sc_caadr(p) { return p.cdr.car.car; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.cdr.car")))
 */
 function sc_caddr(p) { return p.cdr.cdr.car; }
 /*** META ((export #t)
            (peephole (postfix ".car.car.cdr")))
 */
 function sc_cdaar(p) { return p.car.car.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.car.cdr")))
 */
 function sc_cdadr(p) { return p.cdr.car.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".car.cdr.cdr")))
 */
 function sc_cddar(p) { return p.car.cdr.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.cdr.cdr")))
 */
 function sc_cdddr(p) { return p.cdr.cdr.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".car.car.car.car")))
 */
 function sc_caaaar(p) { return p.car.car.car.car; }
 /*** META ((export #t)
            (peephole (postfix ".car.cdr.car.car")))
 */
 function sc_caadar(p) { return p.car.cdr.car.car; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.car.car.car")))
 */
 function sc_caaadr(p) { return p.cdr.car.car.car; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.cdr.car.car")))
 */
 function sc_caaddr(p) { return p.cdr.cdr.car.car; }
 /*** META ((export #t)
            (peephole (postfix ".car.car.car.cdr")))
 */
 function sc_cdaaar(p) { return p.car.car.car.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".car.cdr.car.cdr")))
 */
 function sc_cdadar(p) { return p.car.cdr.car.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.car.car.cdr")))
 */
 function sc_cdaadr(p) { return p.cdr.car.car.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.cdr.car.cdr")))
 */
 function sc_cdaddr(p) { return p.cdr.cdr.car.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".car.car.cdr.car")))
 */
 function sc_cadaar(p) { return p.car.car.cdr.car; }
 /*** META ((export #t)
            (peephole (postfix ".car.cdr.cdr.car")))
 */
 function sc_caddar(p) { return p.car.cdr.cdr.car; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.car.cdr.car")))
 */
 function sc_cadadr(p) { return p.cdr.car.cdr.car; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.cdr.cdr.car")))
 */
 function sc_cadddr(p) { return p.cdr.cdr.cdr.car; }
 /*** META ((export #t)
            (peephole (postfix ".car.car.cdr.cdr")))
 */
 function sc_cddaar(p) { return p.car.car.cdr.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".car.cdr.cdr.cdr")))
 */
 function sc_cdddar(p) { return p.car.cdr.cdr.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.car.cdr.cdr")))
 */
 function sc_cddadr(p) { return p.cdr.car.cdr.cdr; }
 /*** META ((export #t)
            (peephole (postfix ".cdr.cdr.cdr.cdr")))
 */
 function sc_cddddr(p) { return p.cdr.cdr.cdr.cdr; }
 /*** META ((export #t)) */
 function sc_lastPair(l) {
     if (!sc_isPair(l)) sc_error("sc_lastPair: pair expected");
     var res = l;
     var cdr = l.cdr;
     while (sc_isPair(cdr)) {
 	res = cdr;
 	cdr = res.cdr;
     }
     return res;
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix " === null")))
 */
 function sc_isNull(o) {
     return (o === null);
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isList(o) {
     var rabbit;
     var turtle;
     var rabbit = o;
     var turtle = o;
     while (true) {
 	if (rabbit === null ||
 	    (rabbit instanceof sc_Pair && rabbit.cdr === null))
 	    return true;  // end of list
 	else if ((rabbit instanceof sc_Pair) &&
 		 (rabbit.cdr instanceof sc_Pair)) {
 	    rabbit = rabbit.cdr.cdr;
 	    turtle = turtle.cdr;
 	    if (rabbit === turtle) return false; // cycle
 	} else
 	    return false; // not pair
     }
 }
 /*** META ((export #t)) */
 function sc_list() {
     var res = null;
     var a = arguments;
     for (var i = a.length-1; i >= 0; i--)
 	res = new sc_Pair(a[i], res);
     return res;
 }
 /*** META ((export #t)) */
 function sc_iota(num, init) {
    var res = null;
    if (!init) init = 0;
    for (var i = num - 1; i >= 0; i--)
       res = new sc_Pair(i + init, res);
    return res;
 }
 /*** META ((export #t)) */
 function sc_makeList(nbEls, fill) {
     var res = null;
     for (var i = 0; i < nbEls; i++)
 	res = new sc_Pair(fill, res);
     return res;
 }
 /*** META ((export #t)) */
 function sc_length(l) {
     var res = 0;
     while (l !== null) {
 	res++;
 	l = l.cdr;
     }
     return res;
 }
 /*** META ((export #t)) */
 function sc_remq(o, l) {
     var dummy = { cdr : null };
     var tail = dummy;
     while (l !== null) {
 	if (l.car !== o) {
 	    tail.cdr = sc_cons(l.car, null);
 	    tail = tail.cdr;
 	}
 	l = l.cdr;
     }
     return dummy.cdr;
 }
 /*** META ((export #t)) */
 function sc_remqBang(o, l) {
     var dummy = { cdr : null };
     var tail = dummy;
     var needsAssig = true;
     while (l !== null) {
 	if (l.car === o) {
 	    needsAssig = true;
 	} else {
 	    if (needsAssig) {
 		tail.cdr = l;
 		needsAssig = false;
 	    }
 	    tail = l;
 	}
 	l = l.cdr;
     }
     tail.cdr = null;
     return dummy.cdr;
 }
 /*** META ((export #t)) */
 function sc_delete(o, l) {
     var dummy = { cdr : null };
     var tail = dummy;
     while (l !== null) {
 	if (!sc_isEqual(l.car, o)) {
 	    tail.cdr = sc_cons(l.car, null);
 	    tail = tail.cdr;
 	}
 	l = l.cdr;
     }
     return dummy.cdr;
 }
 /*** META ((export #t)) */
 function sc_deleteBang(o, l) {
     var dummy = { cdr : null };
     var tail = dummy;
     var needsAssig = true;
     while (l !== null) {
 	if (sc_isEqual(l.car, o)) {
 	    needsAssig = true;
 	} else {
 	    if (needsAssig) {
 		tail.cdr = l;
 		needsAssig = false;
 	    }
 	    tail = l;
 	}
 	l = l.cdr;
     }
     tail.cdr = null;
     return dummy.cdr;
 }
 function sc_reverseAppendBang(l1, l2) {
     var res = l2;
     while (l1 !== null) {
 	var tmp = res;
 	res = l1;
 	l1 = l1.cdr;
 	res.cdr = tmp;
     }
     return res;
 }
 function sc_dualAppend(l1, l2) {
     if (l1 === null) return l2;
     if (l2 === null) return l1;
     var rev = sc_reverse(l1);
     return sc_reverseAppendBang(rev, l2);
 }
 /*** META ((export #t)) */
 function sc_append() {
     if (arguments.length === 0)
 	return null;
     var res = arguments[arguments.length - 1];
     for (var i = arguments.length - 2; i >= 0; i--)
 	res = sc_dualAppend(arguments[i], res);
     return res;
 }
 function sc_dualAppendBang(l1, l2) {
     if (l1 === null) return l2;
     if (l2 === null) return l1;
     var tmp = l1;
     while (tmp.cdr !== null) tmp=tmp.cdr;
     tmp.cdr = l2;
     return l1;
 }
 /*** META ((export #t)) */
 function sc_appendBang() {
     var res = null;
     for (var i = 0; i < arguments.length; i++)
 	res = sc_dualAppendBang(res, arguments[i]);
     return res;
 }
 /*** META ((export #t)) */
 function sc_reverse(l1) {
     var res = null;
     while (l1 !== null) {
 	res = sc_cons(l1.car, res);
 	l1 = l1.cdr;
     }
     return res;
 }
 /*** META ((export #t)) */
 function sc_reverseBang(l) {
     return sc_reverseAppendBang(l, null);
 }
 /*** META ((export #t)) */
 function sc_listTail(l, k) {
     var res = l;
     for (var i = 0; i < k; i++) {
 	res = res.cdr;
     }
     return res;
 }
 /*** META ((export #t)) */
 function sc_listRef(l, k) {
     return sc_listTail(l, k).car;
 }
 /* // unoptimized generic versions
 function sc_memX(o, l, comp) {
     while (l != null) {
 	if (comp(l.car, o))
 	    return l;
 	l = l.cdr;
     }
     return false;
 }
 function sc_memq(o, l) { return sc_memX(o, l, sc_isEq); }
 function sc_memv(o, l) { return sc_memX(o, l, sc_isEqv); }
 function sc_member(o, l) { return sc_memX(o, l, sc_isEqual); }
 */
 /* optimized versions */
 /*** META ((export #t)) */
 function sc_memq(o, l) {
     while (l !== null) {
 	if (l.car === o)
 	    return l;
 	l = l.cdr;
     }
     return false;
 }
 /*** META ((export #t)) */
 function sc_memv(o, l) {
     while (l !== null) {
 	if (l.car === o)
 	    return l;
 	l = l.cdr;
     }
     return false;
 }
 /*** META ((export #t)) */
 function sc_member(o, l) {
     while (l !== null) {
 	if (sc_isEqual(l.car,o))
 	    return l;
 	l = l.cdr;
     }
     return false;
 }
 /* // generic unoptimized versions
 function sc_assX(o, al, comp) {
     while (al != null) {
 	if (comp(al.car.car, o))
 	    return al.car;
 	al = al.cdr;
     }
     return false;
 }
 function sc_assq(o, al) { return sc_assX(o, al, sc_isEq); }
 function sc_assv(o, al) { return sc_assX(o, al, sc_isEqv); }
 function sc_assoc(o, al) { return sc_assX(o, al, sc_isEqual); }
 */
 // optimized versions
 /*** META ((export #t)) */
 function sc_assq(o, al) {
     while (al !== null) {
 	if (al.car.car === o)
 	    return al.car;
 	al = al.cdr;
     }
     return false;
 }
 /*** META ((export #t)) */
 function sc_assv(o, al) {
     while (al !== null) {
 	if (al.car.car === o)
 	    return al.car;
 	al = al.cdr;
     }
     return false;
 }
 /*** META ((export #t)) */
 function sc_assoc(o, al) {
     while (al !== null) {
 	if (sc_isEqual(al.car.car, o))
 	    return al.car;
 	al = al.cdr;
     }
     return false;
 }
 /* can be used for mutable strings and characters */
 function sc_isCharStringEqual(cs1, cs2) { return cs1.val === cs2.val; }
 function sc_isCharStringLess(cs1, cs2) { return cs1.val < cs2.val; }
 function sc_isCharStringGreater(cs1, cs2) { return cs1.val > cs2.val; }
 function sc_isCharStringLessEqual(cs1, cs2) { return cs1.val <= cs2.val; }
 function sc_isCharStringGreaterEqual(cs1, cs2) { return cs1.val >= cs2.val; }
 function sc_isCharStringCIEqual(cs1, cs2)
     { return cs1.val.toLowerCase() === cs2.val.toLowerCase(); }
 function sc_isCharStringCILess(cs1, cs2)
     { return cs1.val.toLowerCase() < cs2.val.toLowerCase(); }
 function sc_isCharStringCIGreater(cs1, cs2)
     { return cs1.val.toLowerCase() > cs2.val.toLowerCase(); }
 function sc_isCharStringCILessEqual(cs1, cs2)
     { return cs1.val.toLowerCase() <= cs2.val.toLowerCase(); }
 function sc_isCharStringCIGreaterEqual(cs1, cs2)
     { return cs1.val.toLowerCase() >= cs2.val.toLowerCase(); }
 function sc_Char(c) {
     var cached = sc_Char.lazy[c];
     if (cached)
 	return cached;
     this.val = c;
     sc_Char.lazy[c] = this;
     // add return, so FF does not complain.
     return undefined;
 }
 sc_Char.lazy = new Object();
 // thanks to Eric
 sc_Char.char2readable = {
     "\000": "#\\null",
     "\007": "#\\bell",
     "\010": "#\\backspace",
     "\011": "#\\tab",
     "\012": "#\\newline",
     "\014": "#\\page",
     "\015": "#\\return",
     "\033": "#\\escape",
     "\040": "#\\space",
     "\177": "#\\delete",
   /* poeticless names */
     "\001": "#\\soh",
     "\002": "#\\stx",
     "\003": "#\\etx",
     "\004": "#\\eot",
     "\005": "#\\enq",
     "\006": "#\\ack",
     "\013": "#\\vt",
     "\016": "#\\so",
     "\017": "#\\si",
     "\020": "#\\dle",
     "\021": "#\\dc1",
     "\022": "#\\dc2",
     "\023": "#\\dc3",
     "\024": "#\\dc4",
     "\025": "#\\nak",
     "\026": "#\\syn",
     "\027": "#\\etb",
     "\030": "#\\can",
     "\031": "#\\em",
     "\032": "#\\sub",
     "\033": "#\\esc",
     "\034": "#\\fs",
     "\035": "#\\gs",
     "\036": "#\\rs",
     "\037": "#\\us"};
 sc_Char.readable2char = {
     "null": "\000",
     "bell": "\007",
     "backspace": "\010",
     "tab": "\011",
     "newline": "\012",
     "page": "\014",
     "return": "\015",
     "escape": "\033",
     "space": "\040",
     "delete": "\000",
     "soh": "\001",
     "stx": "\002",
     "etx": "\003",
     "eot": "\004",
     "enq": "\005",
     "ack": "\006",
     "bel": "\007",
     "bs": "\010",
     "ht": "\011",
     "nl": "\012",
     "vt": "\013",
     "np": "\014",
     "cr": "\015",
     "so": "\016",
     "si": "\017",
     "dle": "\020",
     "dc1": "\021",
     "dc2": "\022",
     "dc3": "\023",
     "dc4": "\024",
     "nak": "\025",
     "syn": "\026",
     "etb": "\027",
     "can": "\030",
     "em": "\031",
     "sub": "\032",
     "esc": "\033",
     "fs": "\034",
     "gs": "\035",
     "rs": "\036",
     "us": "\037",
     "sp": "\040",
     "del": "\177"};
 sc_Char.prototype.toString = function() {
     return this.val;
 };
 // sc_toDisplayString == toString
 sc_Char.prototype.sc_toWriteString = function() {
     var entry = sc_Char.char2readable[this.val];
     if (entry)
 	return entry;
     else
 	return "#\\" + this.val;
 };
 /*** META ((export #t)
            (type bool)
            (peephole (postfix "instanceof sc_Char")))
 */
 function sc_isChar(c) {
     return (c instanceof sc_Char);
 }
 /*** META ((export char=?)
            (type bool)
            (peephole (hole 2 c1 ".val === " c2 ".val")))
 */
 var sc_isCharEqual = sc_isCharStringEqual;
 /*** META ((export char<?)
            (type bool)
            (peephole (hole 2 c1 ".val < " c2 ".val")))
 */
 var sc_isCharLess = sc_isCharStringLess;
 /*** META ((export char>?)
            (type bool)
            (peephole (hole 2 c1 ".val > " c2 ".val")))
 */
 var sc_isCharGreater = sc_isCharStringGreater;
 /*** META ((export char<=?)
            (type bool)
            (peephole (hole 2 c1 ".val <= " c2 ".val")))
 */
 var sc_isCharLessEqual = sc_isCharStringLessEqual;
 /*** META ((export char>=?)
            (type bool)
            (peephole (hole 2 c1 ".val >= " c2 ".val")))
 */
 var sc_isCharGreaterEqual = sc_isCharStringGreaterEqual;
 /*** META ((export char-ci=?)
            (type bool)
            (peephole (hole 2 c1 ".val.toLowerCase() === " c2 ".val.toLowerCase()")))
 */
 var sc_isCharCIEqual = sc_isCharStringCIEqual;
 /*** META ((export char-ci<?)
            (type bool)
            (peephole (hole 2 c1 ".val.toLowerCase() < " c2 ".val.toLowerCase()")))
 */
 var sc_isCharCILess = sc_isCharStringCILess;
 /*** META ((export char-ci>?)
            (type bool)
            (peephole (hole 2 c1 ".val.toLowerCase() > " c2 ".val.toLowerCase()")))
 */
 var sc_isCharCIGreater = sc_isCharStringCIGreater;
 /*** META ((export char-ci<=?)
            (type bool)
            (peephole (hole 2 c1 ".val.toLowerCase() <= " c2 ".val.toLowerCase()")))
 */
 var sc_isCharCILessEqual = sc_isCharStringCILessEqual;
 /*** META ((export char-ci>=?)
            (type bool)
            (peephole (hole 2 c1 ".val.toLowerCase() >= " c2 ".val.toLowerCase()")))
 */
 var sc_isCharCIGreaterEqual = sc_isCharStringCIGreaterEqual;
 var SC_NUMBER_CLASS = "0123456789";
 var SC_WHITESPACE_CLASS = ' \r\n\t\f';
 var SC_LOWER_CLASS = 'abcdefghijklmnopqrstuvwxyz';
 var SC_UPPER_CLASS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
 function sc_isCharOfClass(c, cl) { return (cl.indexOf(c) != -1); }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isCharAlphabetic(c)
     { return sc_isCharOfClass(c.val, SC_LOWER_CLASS) ||
 	  sc_isCharOfClass(c.val, SC_UPPER_CLASS); }
 /*** META ((export #t)
            (type bool)
            (peephole (hole 1 "SC_NUMBER_CLASS.indexOf(" c ".val) != -1")))
 */
 function sc_isCharNumeric(c)
     { return sc_isCharOfClass(c.val, SC_NUMBER_CLASS); }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isCharWhitespace(c) {
     var tmp = c.val;
     return tmp === " " || tmp === "\r" || tmp === "\n" || tmp === "\t" || tmp === "\f";
 }
 /*** META ((export #t)
            (type bool)
            (peephole (hole 1 "SC_UPPER_CLASS.indexOf(" c ".val) != -1")))
 */
 function sc_isCharUpperCase(c)
     { return sc_isCharOfClass(c.val, SC_UPPER_CLASS); }
 /*** META ((export #t)
            (type bool)
            (peephole (hole 1 "SC_LOWER_CLASS.indexOf(" c ".val) != -1")))
 */
 function sc_isCharLowerCase(c)
     { return sc_isCharOfClass(c.val, SC_LOWER_CLASS); }
 /*** META ((export #t)
            (peephole (postfix ".val.charCodeAt(0)")))
 */
 function sc_char2integer(c)
     { return c.val.charCodeAt(0); }
 /*** META ((export #t)
            (peephole (hole 1 "new sc_Char(String.fromCharCode(" n "))")))
 */
 function sc_integer2char(n)
     { return new sc_Char(String.fromCharCode(n)); }
 /*** META ((export #t)
            (peephole (hole 1 "new sc_Char(" c ".val.toUpperCase())")))
 */
 function sc_charUpcase(c)
     { return new sc_Char(c.val.toUpperCase()); }
 /*** META ((export #t)
            (peephole (hole 1 "new sc_Char(" c ".val.toLowerCase())")))
 */
 function sc_charDowncase(c)
     { return new sc_Char(c.val.toLowerCase()); }
 function sc_makeJSStringOfLength(k, c) {
     var fill;
     if (c === undefined)
 	fill = " ";
     else
 	fill = c;
     var res = "";
     var len = 1;
     // every round doubles the size of fill.
     while (k >= len) {
 	if (k & len)
 	    res = res.concat(fill);
 	fill = fill.concat(fill);
 	len *= 2;
     }
     return res;
 }
 function sc_makejsString(k, c) {
     var fill;
     if (c)
 	fill = c.val;
     else
 	fill = " ";
     return sc_makeJSStringOfLength(k, fill);
 }
 function sc_jsstring2list(s) {
     var res = null;
     for (var i = s.length - 1; i >= 0; i--)
 	res = sc_cons(new sc_Char(s.charAt(i)), res);
     return res;
 }
 function sc_list2jsstring(l) {
     var a = new Array();
     while(l !== null) {
 	a.push(l.car.val);
 	l = l.cdr;
     }
     return "".concat.apply("", a);
 }
 var sc_Vector = Array;
 sc_Vector.prototype.sc_toWriteOrDisplayString = function(writeOrDisplay) {
     if (this.length === 0) return "#()";
     var res = "#(" + writeOrDisplay(this[0]);
     for (var i = 1; i < this.length; i++)
 	res += " " + writeOrDisplay(this[i]);
     res += ")";
     return res;
 };
 sc_Vector.prototype.sc_toDisplayString = function() {
     return this.sc_toWriteOrDisplayString(sc_toDisplayString);
 };
 sc_Vector.prototype.sc_toWriteString = function() {
     return this.sc_toWriteOrDisplayString(sc_toWriteString);
 };
 /*** META ((export vector? array?)
            (type bool)
            (peephole (postfix " instanceof sc_Vector")))
 */
 function sc_isVector(v) {
     return (v instanceof sc_Vector);
 }
 // only applies to vectors
 function sc_isVectorEqual(v1, v2, comp) {
     if (v1.length !== v2.length) return false;
     for (var i = 0; i < v1.length; i++)
 	if (!comp(v1[i], v2[i])) return false;
     return true;
 }
 /*** META ((export make-vector make-array)) */
 function sc_makeVector(size, fill) {
     var a = new sc_Vector(size);
     if (fill !== undefined)
 	sc_vectorFillBang(a, fill);
     return a;
 }
 /*** META ((export vector array)
            (peephole (vector)))
 */
 function sc_vector() {
     var a = new sc_Vector();
     for (var i = 0; i < arguments.length; i++)
 	a.push(arguments[i]);
     return a;
 }
 /*** META ((export vector-length array-length)
            (peephole (postfix ".length")))
 */
 function sc_vectorLength(v) {
     return v.length;
 }
 /*** META ((export vector-ref array-ref)
            (peephole (hole 2 v "[" pos "]")))
 */
 function sc_vectorRef(v, pos) {
     return v[pos];
 }
 /*** META ((export vector-set! array-set!)
            (peephole (hole 3 v "[" pos "] = " val)))
 */
 function sc_vectorSetBang(v, pos, val) {
     v[pos] = val;
 }
 /*** META ((export vector->list array->list)) */
 function sc_vector2list(a) {
     var res = null;
     for (var i = a.length-1; i >= 0; i--)
 	res = sc_cons(a[i], res);
     return res;
 }
 /*** META ((export list->vector list->array)) */
 function sc_list2vector(l) {
     var a = new sc_Vector();
     while(l !== null) {
 	a.push(l.car);
 	l = l.cdr;
     }
     return a;
 }
 /*** META ((export vector-fill! array-fill!)) */
 function sc_vectorFillBang(a, fill) {
     for (var i = 0; i < a.length; i++)
 	a[i] = fill;
 }
 /*** META ((export #t)) */
 function sc_copyVector(a, len) {
     if (len <= a.length)
 	return a.slice(0, len);
     else {
 	var tmp = a.concat();
 	tmp.length = len;
 	return tmp;
     }
 }
 /*** META ((export #t)
            (peephole (hole 3 a ".slice(" start "," end ")")))
 */
 function sc_vectorCopy(a, start, end) {
     return a.slice(start, end);
 }
 /*** META ((export #t)) */
 function sc_vectorCopyBang(target, tstart, source, sstart, send) {
     if (!sstart) sstart = 0;
     if (!send) send = source.length;
     // if target == source we don't want to overwrite not yet copied elements.
     if (tstart <= sstart) {
 	for (var i = tstart, j = sstart; j < send; i++, j++) {
 	    target[i] = source[j];
 	}
     } else {
 	var diff = send - sstart;
 	for (var i = tstart + diff - 1, j = send - 1;
 	     j >= sstart;
 	     i--, j--) {
 	    target[i] = source[j];
 	}
     }
     return target;
 }
 /*** META ((export #t)
            (type bool)
            (peephole (hole 1 "typeof " o " === 'function'")))
 */
 function sc_isProcedure(o) {
     return (typeof o === "function");
 }
 /*** META ((export #t)) */
 function sc_apply(proc) {
     var args = new Array();
     // first part of arguments are not in list-form.
     for (var i = 1; i < arguments.length - 1; i++)
 	args.push(arguments[i]);
     var l = arguments[arguments.length - 1];
     while (l !== null) {
 	args.push(l.car);
 	l = l.cdr;
     }
     return proc.apply(null, args);
 }
 /*** META ((export #t)) */
 function sc_map(proc, l1) {
     if (l1 === undefined)
 	return null;
     // else
     var nbApplyArgs = arguments.length - 1;
     var applyArgs = new Array(nbApplyArgs);
     var revres = null;
     while (l1 !== null) {
 	for (var i = 0; i < nbApplyArgs; i++) {
 	    applyArgs[i] = arguments[i + 1].car;
 	    arguments[i + 1] = arguments[i + 1].cdr;
 	}
 	revres = sc_cons(proc.apply(null, applyArgs), revres);
     }
     return sc_reverseAppendBang(revres, null);
 }
 /*** META ((export #t)) */
 function sc_mapBang(proc, l1) {
     if (l1 === undefined)
 	return null;
     // else
     var l1_orig = l1;
     var nbApplyArgs = arguments.length - 1;
     var applyArgs = new Array(nbApplyArgs);
     while (l1 !== null) {
 	var tmp = l1;
 	for (var i = 0; i < nbApplyArgs; i++) {
 	    applyArgs[i] = arguments[i + 1].car;
 	    arguments[i + 1] = arguments[i + 1].cdr;
 	}
 	tmp.car = proc.apply(null, applyArgs);
     }
     return l1_orig;
 }
 /*** META ((export #t)) */
 function sc_forEach(proc, l1) {
     if (l1 === undefined)
 	return undefined;
     // else
     var nbApplyArgs = arguments.length - 1;
     var applyArgs = new Array(nbApplyArgs);
     while (l1 !== null) {
 	for (var i = 0; i < nbApplyArgs; i++) {
 	    applyArgs[i] = arguments[i + 1].car;
 	    arguments[i + 1] = arguments[i + 1].cdr;
 	}
 	proc.apply(null, applyArgs);
     }
     // add return so FF does not complain.
     return undefined;
 }
 /*** META ((export #t)) */
 function sc_filter(proc, l1) {
     var dummy = { cdr : null };
     var tail = dummy;
     while (l1 !== null) {
 	if (proc(l1.car) !== false) {
 	    tail.cdr = sc_cons(l1.car, null);
 	    tail = tail.cdr;
 	}
 	l1 = l1.cdr;
     }
     return dummy.cdr;
 }
 /*** META ((export #t)) */
 function sc_filterBang(proc, l1) {
     var head = sc_cons("dummy", l1);
     var it = head;
     var next = l1;
     while (next !== null) {
         if (proc(next.car) !== false) {
 	    it.cdr = next
 	    it = next;
 	}
 	next = next.cdr;
     }
     it.cdr = null;
     return head.cdr;
 }
 function sc_filterMap1(proc, l1) {
     var revres = null;
     while (l1 !== null) {
         var tmp = proc(l1.car)
         if (tmp !== false) revres = sc_cons(tmp, revres);
         l1 = l1.cdr;
     }
     return sc_reverseAppendBang(revres, null);
 }
 function sc_filterMap2(proc, l1, l2) {
     var revres = null;
     while (l1 !== null) {
         var tmp = proc(l1.car, l2.car);
         if(tmp !== false) revres = sc_cons(tmp, revres);
 	l1 = l1.cdr;
 	l2 = l2.cdr
     }
     return sc_reverseAppendBang(revres, null);
 }
 /*** META ((export #t)) */
 function sc_filterMap(proc, l1, l2, l3) {
     if (l2 === undefined)
 	return sc_filterMap1(proc, l1);
     else if (l3 === undefined)
 	return sc_filterMap2(proc, l1, l2);
     // else
     var nbApplyArgs = arguments.length - 1;
     var applyArgs = new Array(nbApplyArgs);
     var revres = null;
     while (l1 !== null) {
 	for (var i = 0; i < nbApplyArgs; i++) {
 	    applyArgs[i] = arguments[i + 1].car;
 	    arguments[i + 1] = arguments[i + 1].cdr;
 	}
 	var tmp = proc.apply(null, applyArgs);
 	if(tmp !== false) revres = sc_cons(tmp, revres);
     }
     return sc_reverseAppendBang(revres, null);
 }
 /*** META ((export #t)) */
 function sc_any(proc, l) {
     var revres = null;
     while (l !== null) {
         var tmp = proc(l.car);
         if(tmp !== false) return tmp;
 	l = l.cdr;
     }
     return false;
 }
 /*** META ((export any?)
            (peephole (hole 2 "sc_any(" proc "," l ") !== false")))
 */
 function sc_anyPred(proc, l) {
     return sc_any(proc, l)!== false;
 }
 /*** META ((export #t)) */
 function sc_every(proc, l) {
     var revres = null;
     var tmp = true;
     while (l !== null) {
         tmp = proc(l.car);
         if (tmp === false) return false;
 	l = l.cdr;
     }
     return tmp;
 }
 /*** META ((export every?)
            (peephole (hole 2 "sc_every(" proc "," l ") !== false")))
 */
 function sc_everyPred(proc, l) {
     var tmp = sc_every(proc, l);
     if (tmp !== false) return true;
     return false;
 }
 /*** META ((export #t)
            (peephole (postfix "()")))
 */
 function sc_force(o) {
     return o();
 }
 /*** META ((export #t)) */
 function sc_makePromise(proc) {
     var isResultReady = false;
     var result = undefined;
     return function() {
 	if (!isResultReady) {
 	    var tmp = proc();
 	    if (!isResultReady) {
 		isResultReady = true;
 		result = tmp;
 	    }
 	}
 	return result;
     };
 }
 function sc_Values(values) {
     this.values = values;
 }
 /*** META ((export #t)
            (peephole (values)))
 */
 function sc_values() {
     if (arguments.length === 1)
 	return arguments[0];
     else
 	return new sc_Values(arguments);
 }
 /*** META ((export #t)) */
 function sc_callWithValues(producer, consumer) {
     var produced = producer();
     if (produced instanceof sc_Values)
 	return consumer.apply(null, produced.values);
     else
 	return consumer(produced);
 }
 /*** META ((export #t)) */
 function sc_dynamicWind(before, thunk, after) {
     before();
     try {
 	var res = thunk();
 	return res;
     } finally {
 	after();
     }
 }
 // TODO: eval/scheme-report-environment/null-environment/interaction-environment
 // LIMITATION: 'load' doesn't exist without files.
 // LIMITATION: transcript-on/transcript-off doesn't exist without files.
 function sc_Struct(name) {
     this.name = name;
 }
 sc_Struct.prototype.sc_toDisplayString = function() {
     return "#<struct" + sc_hash(this) + ">";
 };
 sc_Struct.prototype.sc_toWriteString = sc_Struct.prototype.sc_toDisplayString;
 /*** META ((export #t)
            (peephole (hole 1 "new sc_Struct(" name ")")))
 */
 function sc_makeStruct(name) {
     return new sc_Struct(name);
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix " instanceof sc_Struct")))
 */
 function sc_isStruct(o) {
     return (o instanceof sc_Struct);
 }
 /*** META ((export #t)
            (type bool)
            (peephole (hole 2 "(" 1 " instanceof sc_Struct) && ( " 1 ".name === " 0 ")")))
 */
 function sc_isStructNamed(name, s) {
     return ((s instanceof sc_Struct) && (s.name === name));
 }
 /*** META ((export struct-field)
            (peephole (hole 3 0 "[" 2 "]")))
 */
 function sc_getStructField(s, name, field) {
     return s[field];
 }
 /*** META ((export struct-field-set!)
            (peephole (hole 4 0 "[" 2 "] = " 3)))
 */
 function sc_setStructFieldBang(s, name, field, val) {
     s[field] = val;
 }
 /*** META ((export #t)
            (peephole (prefix "~")))
 */
 function sc_bitNot(x) {
     return ~x;
 }
 /*** META ((export #t)
            (peephole (infix 2 2 "&")))
 */
 function sc_bitAnd(x, y) {
     return x & y;
 }
 /*** META ((export #t)
            (peephole (infix 2 2 "|")))
 */
 function sc_bitOr(x, y) {
     return x | y;
 }
 /*** META ((export #t)
            (peephole (infix 2 2 "^")))
 */
 function sc_bitXor(x, y) {
     return x ^ y;
 }
 /*** META ((export #t)
            (peephole (infix 2 2 "<<")))
 */
 function sc_bitLsh(x, y) {
     return x << y;
 }
 /*** META ((export #t)
            (peephole (infix 2 2 ">>")))
 */
 function sc_bitRsh(x, y) {
     return x >> y;
 }
 /*** META ((export #t)
            (peephole (infix 2 2 ">>>")))
 */
 function sc_bitUrsh(x, y) {
     return x >>> y;
 }
 /*** META ((export js-field js-property)
            (peephole (hole 2 o "[" field "]")))
 */
 function sc_jsField(o, field) {
     return o[field];
 }
 /*** META ((export js-field-set! js-property-set!)
            (peephole (hole 3 o "[" field "] = " val)))
 */
 function sc_setJsFieldBang(o, field, val) {
     return o[field] = val;
 }
 /*** META ((export js-field-delete! js-property-delete!)
            (peephole (hole 2 "delete" o "[" field "]")))
 */
 function sc_deleteJsFieldBang(o, field) {
     delete o[field];
 }
 /*** META ((export #t)
            (peephole (jsCall)))
 */
 function sc_jsCall(o, fun) {
     var args = new Array();
     for (var i = 2; i < arguments.length; i++)
 	args[i-2] = arguments[i];
     return fun.apply(o, args);
 }
 /*** META ((export #t)
            (peephole (jsMethodCall)))
 */
 function sc_jsMethodCall(o, field) {
     var args = new Array();
     for (var i = 2; i < arguments.length; i++)
 	args[i-2] = arguments[i];
     return o[field].apply(o, args);
 }
 /*** META ((export new js-new)
            (peephole (jsNew)))
 */
 function sc_jsNew(c) {
     var evalStr = "new c(";
     evalStr +=arguments.length > 1? "arguments[1]": "";
     for (var i = 2; i < arguments.length; i++)
 	evalStr += ", arguments[" + i + "]";
     evalStr +=")";
     return eval(evalStr);
 }
 // ======================== RegExp ====================
 /*** META ((export #t)) */
 function sc_pregexp(re) {
     return new RegExp(sc_string2jsstring(re));
 }
 /*** META ((export #t)) */
 function sc_pregexpMatch(re, s) {
     var reg = (re instanceof RegExp) ? re : sc_pregexp(re);
     var tmp = reg.exec(sc_string2jsstring(s));
     if (tmp == null) return false;
     var res = null;
     for (var i = tmp.length-1; i >= 0; i--) {
 	if (tmp[i] !== null) {
 	    res = sc_cons(sc_jsstring2string(tmp[i]), res);
 	} else {
 	    res = sc_cons(false, res);
 	}
     }
     return res;
 }
 /*** META ((export #t)) */
 function sc_pregexpReplace(re, s1, s2) {
    var reg;
    var jss1 = sc_string2jsstring(s1);
    var jss2 = sc_string2jsstring(s2);
    if (re instanceof RegExp) {
        if (re.global)
 	   reg = re;
        else
 	   reg = new RegExp(re.source);
    } else {
        reg = new RegExp(sc_string2jsstring(re));
    }
    return jss1.replace(reg, jss2);
 }
 /*** META ((export pregexp-replace*)) */
 function sc_pregexpReplaceAll(re, s1, s2) {
    var reg;
    var jss1 = sc_string2jsstring(s1);
    var jss2 = sc_string2jsstring(s2);
    if (re instanceof RegExp) {
       if (re.global)
 	  reg = re;
       else
 	  reg = new RegExp(re.source, "g");
    } else {
        reg = new RegExp(sc_string2jsstring(re), "g");
    }
    return jss1.replace(reg, jss2);
 }
 /*** META ((export #t)) */
 function sc_pregexpSplit(re, s) {
    var reg = ((re instanceof RegExp) ?
 	      re :
 	      new RegExp(sc_string2jsstring(re)));
    var jss = sc_string2jsstring(s);
    var tmp = jss.split(reg);
    if (tmp == null) return false;
    return sc_vector2list(tmp);
 }
 /* =========================================================================== */
 /* Other library stuff */
 /* =========================================================================== */
 /*** META ((export #t)
            (peephole (hole 1 "Math.floor(Math.random()*" 'n ")")))
 */
 function sc_random(n) {
     return Math.floor(Math.random()*n);
 }
 /*** META ((export current-date)
            (peephole (hole 0 "new Date()")))
 */
 function sc_currentDate() {
    return new Date();
 }
 function sc_Hashtable() {
 }
 sc_Hashtable.prototype.toString = function() {
     return "#{%hashtable}";
 };
 // sc_toWriteString == sc_toDisplayString == toString
 function sc_HashtableElement(key, val) {
     this.key = key;
     this.val = val;
 }
 /*** META ((export #t)
            (peephole (hole 0 "new sc_Hashtable()")))
 */
 function sc_makeHashtable() {
     return new sc_Hashtable();
 }
 /*** META ((export #t)) */
 function sc_hashtablePutBang(ht, key, val) {
     var hash = sc_hash(key);
     ht[hash] = new sc_HashtableElement(key, val);
 }
 /*** META ((export #t)) */
 function sc_hashtableGet(ht, key) {
     var hash = sc_hash(key);
     if (hash in ht)
 	return ht[hash].val;
     else
 	return false;
 }
 /*** META ((export #t)) */
 function sc_hashtableForEach(ht, f) {
     for (var v in ht) {
 	if (ht[v] instanceof sc_HashtableElement)
 	    f(ht[v].key, ht[v].val);
     }
 }
 /*** META ((export hashtable-contains?)
            (peephole (hole 2 "sc_hash(" 1 ") in " 0)))
 */
 function sc_hashtableContains(ht, key) {
     var hash = sc_hash(key);
     if (hash in ht)
 	return true;
     else
 	return false;
 }
 var SC_HASH_COUNTER = 0;
 function sc_hash(o) {
     if (o === null)
 	return "null";
     else if (o === undefined)
 	return "undefined";
     else if (o === true)
 	return "true";
     else if (o === false)
 	return "false";
     else if (typeof o === "number")
 	return "num-" + o;
     else if (typeof o === "string")
 	return "jsstr-" + o;
     else if (o.sc_getHash)
 	return o.sc_getHash();
     else
 	return sc_counterHash.call(o);
 }
 function sc_counterHash() {
     if (!this.sc_hash) {
 	this.sc_hash = "hash-" + SC_HASH_COUNTER;
 	SC_HASH_COUNTER++;
     }
     return this.sc_hash;
 }
 function sc_Trampoline(args, maxTailCalls) {
     this['__trampoline return__'] = true;
     this.args = args;
     this.MAX_TAIL_CALLs = maxTailCalls;
 }
 // TODO: call/cc stuff
 sc_Trampoline.prototype.restart = function() {
     var o = this;
     while (true) {
 	// set both globals.
 	SC_TAIL_OBJECT.calls = o.MAX_TAIL_CALLs-1;
 	var fun = o.args.callee;
 	var res = fun.apply(SC_TAIL_OBJECT, o.args);
 	if (res instanceof sc_Trampoline)
 	    o = res;
 	else
 	    return res;
     }
 }
 /*** META ((export bind-exit-lambda)) */
 function sc_bindExitLambda(proc) {
     var escape_obj = new sc_BindExitException();
     var escape = function(res) {
 	escape_obj.res = res;
 	throw escape_obj;
     };
     try {
 	return proc(escape);
     } catch(e) {
 	if (e === escape_obj) {
 	    return e.res;
 	}
 	throw e;
     }
 }
 function sc_BindExitException() {
     this._internalException = true;
 }
 var SC_SCM2JS_GLOBALS = new Object();
 // default tail-call depth.
 // normally the program should set it again. but just in case...
 var SC_TAIL_OBJECT = new Object();
 SC_SCM2JS_GLOBALS.TAIL_OBJECT = SC_TAIL_OBJECT;
 // ======================== I/O =======================
 /*------------------------------------------------------------------*/
 function sc_EOF() {
 }
 var SC_EOF_OBJECT = new sc_EOF();
 function sc_Port() {
 }
 /* --------------- Input ports -------------------------------------*/
 function sc_InputPort() {
 }
 sc_InputPort.prototype = new sc_Port();
 sc_InputPort.prototype.peekChar = function() {
     if (!("peeked" in this))
 	this.peeked = this.getNextChar();
     return this.peeked;
 }
 sc_InputPort.prototype.readChar = function() {
     var tmp = this.peekChar();
     delete this.peeked;
     return tmp;
 }
 sc_InputPort.prototype.isCharReady = function() {
     return true;
 }
 sc_InputPort.prototype.close = function() {
     // do nothing
 }
 /* .............. String port ..........................*/
 function sc_ErrorInputPort() {
 };
 sc_ErrorInputPort.prototype = new sc_InputPort();
 sc_ErrorInputPort.prototype.getNextChar = function() {
     throw "can't read from error-port.";
 };
 sc_ErrorInputPort.prototype.isCharReady = function() {
     return false;
 };
 /* .............. String port ..........................*/
 function sc_StringInputPort(jsStr) {
     // we are going to do some charAts on the str.
     // instead of recreating all the time a String-object, we
     // create one in the beginning. (not sure, if this is really an optim)
     this.str = new String(jsStr);
     this.pos = 0;
 }
 sc_StringInputPort.prototype = new sc_InputPort();
 sc_StringInputPort.prototype.getNextChar = function() {
     if (this.pos >= this.str.length)
 	return SC_EOF_OBJECT;
     return this.str.charAt(this.pos++);
 };
 /* ------------- Read and other lib-funs  -------------------------------*/
 function sc_Token(type, val, pos) {
     this.type = type;
     this.val = val;
     this.pos = pos;
 }
 sc_Token.EOF = 0/*EOF*/;
 sc_Token.OPEN_PAR = 1/*OPEN_PAR*/;
 sc_Token.CLOSE_PAR = 2/*CLOSE_PAR*/;
 sc_Token.OPEN_BRACE = 3/*OPEN_BRACE*/;
 sc_Token.CLOSE_BRACE = 4/*CLOSE_BRACE*/;
 sc_Token.OPEN_BRACKET = 5/*OPEN_BRACKET*/;
 sc_Token.CLOSE_BRACKET = 6/*CLOSE_BRACKET*/;
 sc_Token.WHITESPACE = 7/*WHITESPACE*/;
 sc_Token.QUOTE = 8/*QUOTE*/;
 sc_Token.ID = 9/*ID*/;
 sc_Token.DOT = 10/*DOT*/;
 sc_Token.STRING = 11/*STRING*/;
 sc_Token.NUMBER = 12/*NUMBER*/;
 sc_Token.ERROR = 13/*ERROR*/;
 sc_Token.VECTOR_BEGIN = 14/*VECTOR_BEGIN*/;
 sc_Token.TRUE = 15/*TRUE*/;
 sc_Token.FALSE = 16/*FALSE*/;
 sc_Token.UNSPECIFIED = 17/*UNSPECIFIED*/;
 sc_Token.REFERENCE = 18/*REFERENCE*/;
 sc_Token.STORE = 19/*STORE*/;
 sc_Token.CHAR = 20/*CHAR*/;
 var SC_ID_CLASS = SC_LOWER_CLASS + SC_UPPER_CLASS + "!$%*+-./:<=>?@^_~";
 function sc_Tokenizer(port) {
     this.port = port;
 }
 sc_Tokenizer.prototype.peekToken = function() {
     if (this.peeked)
 	return this.peeked;
     var newToken = this.nextToken();
     this.peeked = newToken;
     return newToken;
 };
 sc_Tokenizer.prototype.readToken = function() {
     var tmp = this.peekToken();
     delete this.peeked;
     return tmp;
 };
 sc_Tokenizer.prototype.nextToken = function() {
     var port = this.port;
     function isNumberChar(c) {
 	return (c >= "0" && c <= "9");
     };
     function isIdOrNumberChar(c) {
 	return SC_ID_CLASS.indexOf(c) != -1 || // ID-char
 	    (c >= "0" && c <= "9");
     }
     function isWhitespace(c) {
 	return c === " " || c === "\r" || c === "\n" || c === "\t" || c === "\f";
     };
     function isWhitespaceOrEOF(c) {
 	return isWhitespace(c) || c === SC_EOF_OBJECT;
     };
     function readString() {
 	res = "";
 	while (true) {
 	    var c = port.readChar();
 	    switch (c) {
 	    case '"':
 		return new sc_Token(11/*STRING*/, res);
 	    case "\\":
 		var tmp = port.readChar();
 		switch (tmp) {
 		case '0': res += "\0"; break;
 		case 'a': res += "\a"; break;
 		case 'b': res += "\b"; break;
 		case 'f': res += "\f"; break;
 		case 'n': res += "\n"; break;
 		case 'r': res += "\r"; break;
 		case 't': res += "\t"; break;
 		case 'v': res += "\v"; break;
 		case '"': res += '"'; break;
 		case '\\': res += '\\'; break;
 		case 'x':
 		    /* hexa-number */
 		    var nb = 0;
 		    while (true) {
 			var hexC = port.peekChar();
 			if (hexC >= '0' && hexC <= '9') {
 			    port.readChar();
 			    nb = nb * 16 + hexC.charCodeAt(0) - '0'.charCodeAt(0);
 			} else if (hexC >= 'a' && hexC <= 'f') {
 			    port.readChar();
 			    nb = nb * 16 + hexC.charCodeAt(0) - 'a'.charCodeAt(0);
 			} else if (hexC >= 'A' && hexC <= 'F') {
 			    port.readChar();
 			    nb = nb * 16 + hexC.charCodeAt(0) - 'A'.charCodeAt(0);
 			} else {
 			    // next char isn't part of hex.
 			    res += String.fromCharCode(nb);
 			    break;
 			}
 		    }
 		    break;
 		default:
 		    if (tmp === SC_EOF_OBJECT) {
 			return new sc_Token(13/*ERROR*/, "unclosed string-literal" + res);
 		    }
 		    res += tmp;
 		}
 		break;
 	    default:
 		if (c === SC_EOF_OBJECT) {
 		    return new sc_Token(13/*ERROR*/, "unclosed string-literal" + res);
 		}
 		res += c;
 	    }
 	}
     };
     function readIdOrNumber(firstChar) {
 	var res = firstChar;
 	while (isIdOrNumberChar(port.peekChar()))
 	    res += port.readChar();
 	if (isNaN(res))
 	    return new sc_Token(9/*ID*/, res);
 	else
 	    return new sc_Token(12/*NUMBER*/, res - 0);
     };
     function skipWhitespaceAndComments() {
 	var done = false;
 	while (!done) {
 	    done = true;
 	    while (isWhitespace(port.peekChar()))
 		port.readChar();
 	    if (port.peekChar() === ';') {
 		port.readChar();
 		done = false;
 		while (true) {
 		    curChar = port.readChar();
 		    if (curChar === SC_EOF_OBJECT ||
 			curChar === '\n')
 			break;
 		}
 	    }
 	}
     };
     function readDot() {
 	if (isWhitespace(port.peekChar()))
 	    return new sc_Token(10/*DOT*/);
 	else
 	    return readIdOrNumber(".");
     };
     function readSharp() {
 	var c = port.readChar();
 	if (isWhitespace(c))
 	    return new sc_Token(13/*ERROR*/, "bad #-pattern0.");
 	// reference
 	if (isNumberChar(c)) {
 	    var nb = c - 0;
 	    while (isNumberChar(port.peekChar()))
 		nb = nb*10 + (port.readChar() - 0);
 	    switch (port.readChar()) {
 	    case '#':
 		return new sc_Token(18/*REFERENCE*/, nb);
 	    case '=':
 		return new sc_Token(19/*STORE*/, nb);
 	    default:
 		return new sc_Token(13/*ERROR*/, "bad #-pattern1." + nb);
 	    }
 	}
 	if (c === "(")
 	    return new sc_Token(14/*VECTOR_BEGIN*/);
 	if (c === "\\") { // character
 	    var tmp = ""
 	    while (!isWhitespaceOrEOF(port.peekChar()))
 		tmp += port.readChar();
 	    switch (tmp.length) {
 	    case 0: // it's escaping a whitespace char:
 		if (sc_isEOFObject(port.peekChar))
 		    return new sc_Token(13/*ERROR*/, "bad #-pattern2.");
 		else
 		    return new sc_Token(20/*CHAR*/, port.readChar());
 	    case 1:
 		return new sc_Token(20/*CHAR*/, tmp);
 	    default:
 		var entry = sc_Char.readable2char[tmp.toLowerCase()];
 		if (entry)
 		    return new sc_Token(20/*CHAR*/, entry);
 		else
 		    return new sc_Token(13/*ERROR*/, "unknown character description: #\\" + tmp);
 	    }
 	}
 	// some constants (#t, #f, #unspecified)
 	var res;
 	var needing;
 	switch (c) {
 	case 't': res = new sc_Token(15/*TRUE*/, true); needing = ""; break;
 	case 'f': res = new sc_Token(16/*FALSE*/, false); needing = ""; break;
 	case 'u': res = new sc_Token(17/*UNSPECIFIED*/, undefined); needing = "nspecified"; break;
 	default:
 	    return new sc_Token(13/*ERROR*/, "bad #-pattern3: " + c);
 	}
 	while(true) {
 	    c = port.peekChar();
 	    if ((isWhitespaceOrEOF(c) || c === ')') &&
 		needing == "")
 		return res;
 	    else if (isWhitespace(c) || needing == "")
 		return new sc_Token(13/*ERROR*/, "bad #-pattern4 " + c + " " + needing);
 	    else if (needing.charAt(0) == c) {
 		port.readChar(); // consume
 		needing = needing.slice(1);
 	    } else
 		return new sc_Token(13/*ERROR*/, "bad #-pattern5");
 	}
     };
     skipWhitespaceAndComments();
     var curChar = port.readChar();
     if (curChar === SC_EOF_OBJECT)
 	return new sc_Token(0/*EOF*/, curChar);
     switch (curChar)
     {
     case " ":
     case "\n":
     case "\t":
 	return readWhitespace();
     case "(":
 	return new sc_Token(1/*OPEN_PAR*/);
     case ")":
 	return new sc_Token(2/*CLOSE_PAR*/);
     case "{":
 	return new sc_Token(3/*OPEN_BRACE*/);
     case "}":
 	return new sc_Token(4/*CLOSE_BRACE*/);
     case "[":
 	return new sc_Token(5/*OPEN_BRACKET*/);
     case "]":
 	return new sc_Token(6/*CLOSE_BRACKET*/);
     case "'":
 	return new sc_Token(8/*QUOTE*/);
     case "#":
 	return readSharp();
     case ".":
 	return readDot();
     case '"':
 	return readString();
     default:
 	if (isIdOrNumberChar(curChar))
 	    return readIdOrNumber(curChar);
 	throw "unexpected character: " + curChar;
     }
 };
 function sc_Reader(tokenizer) {
     this.tokenizer = tokenizer;
     this.backref = new Array();
 }
 sc_Reader.prototype.read = function() {
     function readList(listBeginType) {
 	function matchesPeer(open, close) {
 	    return open === 1/*OPEN_PAR*/ && close === 2/*CLOSE_PAR*/
 	    	|| open === 3/*OPEN_BRACE*/ && close === 4/*CLOSE_BRACE*/
 		|| open === 5/*OPEN_BRACKET*/ && close === 6/*CLOSE_BRACKET*/;
 	};
 	var res = null;
 	while (true) {
 	    var token = tokenizer.peekToken();
 	    switch (token.type) {
 	    case 2/*CLOSE_PAR*/:
 	    case 4/*CLOSE_BRACE*/:
 	    case 6/*CLOSE_BRACKET*/:
 		if (matchesPeer(listBeginType, token.type)) {
 		    tokenizer.readToken(); // consume token
 		    return sc_reverseBang(res);
 		} else
 		    throw "closing par doesn't match: " + listBeginType
 			+ " " + listEndType;
 	    case 0/*EOF*/:
 		throw "unexpected end of file";
 	    case 10/*DOT*/:
 		tokenizer.readToken(); // consume token
 		var cdr = this.read();
 		var par = tokenizer.readToken();
 		if (!matchesPeer(listBeginType, par.type))
 		    throw "closing par doesn't match: " + listBeginType
 			+ " " + par.type;
 		else
 		    return sc_reverseAppendBang(res, cdr);
 	    default:
 		res = sc_cons(this.read(), res);
 	    }
 	}
     };
     function readQuote() {
 	return sc_cons("quote", sc_cons(this.read(), null));
     };
     function readVector() {
 	// opening-parenthesis is already consumed
 	var a = new Array();
 	while (true) {
 	    var token = tokenizer.peekToken();
 	    switch (token.type) {
 	    case 2/*CLOSE_PAR*/:
 		tokenizer.readToken();
 		return a;
 	    default:
 		a.push(this.read());
 	    }
 	}
     };
     function storeRefence(nb) {
 	var tmp = this.read();
 	this.backref[nb] = tmp;
 	return tmp;
     };
     function readReference(nb) {
 	if (nb in this.backref)
 	    return this.backref[nb];
 	else
 	    throw "bad reference: " + nb;
     };
     var tokenizer = this.tokenizer;
     var token = tokenizer.readToken();
     // handle error
     if (token.type === 13/*ERROR*/)
 	throw token.val;
     switch (token.type) {
     case 1/*OPEN_PAR*/:
     case 3/*OPEN_BRACE*/:
     case 5/*OPEN_BRACKET*/:
 	return readList.call(this, token.type);
     case 8/*QUOTE*/:
 	return readQuote.call(this);
     case 11/*STRING*/:
 	return sc_jsstring2string(token.val);
     case 20/*CHAR*/:
 	return new sc_Char(token.val);
     case 14/*VECTOR_BEGIN*/:
 	return readVector.call(this);
     case 18/*REFERENCE*/:
 	return readReference.call(this, token.val);
     case 19/*STORE*/:
 	return storeRefence.call(this, token.val);
     case 9/*ID*/:
 	return sc_jsstring2symbol(token.val);
     case 0/*EOF*/:
     case 12/*NUMBER*/:
     case 15/*TRUE*/:
     case 16/*FALSE*/:
     case 17/*UNSPECIFIED*/:
 	return token.val;
     default:
 	throw "unexpected token " + token.type + " " + token.val;
     }
 };
 /*** META ((export #t)) */
 function sc_read(port) {
     if (port === undefined) // we assume the port hasn't been given.
 	port = SC_DEFAULT_IN; // THREAD: shared var...
     var reader = new sc_Reader(new sc_Tokenizer(port));
     return reader.read();
 }
 /*** META ((export #t)) */
 function sc_readChar(port) {
     if (port === undefined) // we assume the port hasn't been given.
 	port = SC_DEFAULT_IN; // THREAD: shared var...
     var t = port.readChar();
     return t === SC_EOF_OBJECT? t: new sc_Char(t);
 }
 /*** META ((export #t)) */
 function sc_peekChar(port) {
     if (port === undefined) // we assume the port hasn't been given.
 	port = SC_DEFAULT_IN; // THREAD: shared var...
     var t = port.peekChar();
     return t === SC_EOF_OBJECT? t: new sc_Char(t);
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isCharReady(port) {
     if (port === undefined) // we assume the port hasn't been given.
 	port = SC_DEFAULT_IN; // THREAD: shared var...
     return port.isCharReady();
 }
 /*** META ((export #t)
            (peephole (postfix ".close()")))
 */
 function sc_closeInputPort(p) {
     return p.close();
 }
 /*** META ((export #t)
            (type bool)
            (peephole (postfix " instanceof sc_InputPort")))
 */
 function sc_isInputPort(o) {
     return (o instanceof sc_InputPort);
 }
 /*** META ((export eof-object?)
            (type bool)
            (peephole (postfix " === SC_EOF_OBJECT")))
 */
 function sc_isEOFObject(o) {
     return o === SC_EOF_OBJECT;
 }
 /*** META ((export #t)
            (peephole (hole 0 "SC_DEFAULT_IN")))
 */
 function sc_currentInputPort() {
     return SC_DEFAULT_IN;
 }
 /* ------------ file operations are not supported -----------*/
 /*** META ((export #t)) */
 function sc_callWithInputFile(s, proc) {
     throw "can't open " + s;
 }
 /*** META ((export #t)) */
 function sc_callWithOutputFile(s, proc) {
     throw "can't open " + s;
 }
 /*** META ((export #t)) */
 function sc_withInputFromFile(s, thunk) {
     throw "can't open " + s;
 }
 /*** META ((export #t)) */
 function sc_withOutputToFile(s, thunk) {
     throw "can't open " + s;
 }
 /*** META ((export #t)) */
 function sc_openInputFile(s) {
     throw "can't open " + s;
 }
 /*** META ((export #t)) */
 function sc_openOutputFile(s) {
     throw "can't open " + s;
 }
 /* ----------------------------------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_basename(p) {
    var i = p.lastIndexOf('/');
    if(i >= 0)
       return p.substring(i + 1, p.length);
    else
       return '';
 }
 /*** META ((export #t)) */
 function sc_dirname(p) {
    var i = p.lastIndexOf('/');
    if(i >= 0)
       return p.substring(0, i);
    else
       return '';
 }
 /* ----------------------------------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_withInputFromPort(p, thunk) {
     try {
 	var tmp = SC_DEFAULT_IN; // THREAD: shared var.
 	SC_DEFAULT_IN = p;
 	return thunk();
     } finally {
 	SC_DEFAULT_IN = tmp;
     }
 }
 /*** META ((export #t)) */
 function sc_withInputFromString(s, thunk) {
     return sc_withInputFromPort(new sc_StringInputPort(sc_string2jsstring(s)), thunk);
 }
 /*** META ((export #t)) */
 function sc_withOutputToPort(p, thunk) {
     try {
 	var tmp = SC_DEFAULT_OUT; // THREAD: shared var.
 	SC_DEFAULT_OUT = p;
 	return thunk();
     } finally {
 	SC_DEFAULT_OUT = tmp;
     }
 }
 /*** META ((export #t)) */
 function sc_withOutputToString(thunk) {
     var p = new sc_StringOutputPort();
     sc_withOutputToPort(p, thunk);
     return p.close();
 }
 /*** META ((export #t)) */
 function sc_withOutputToProcedure(proc, thunk) {
     var t = function(s) { proc(sc_jsstring2string(s)); };
     return sc_withOutputToPort(new sc_GenericOutputPort(t), thunk);
 }
 /*** META ((export #t)
            (peephole (hole 0 "new sc_StringOutputPort()")))
 */
 function sc_openOutputString() {
     return new sc_StringOutputPort();
 }
 /*** META ((export #t)) */
 function sc_openInputString(str) {
     return new sc_StringInputPort(sc_string2jsstring(str));
 }
 /* ----------------------------------------------------------------------------*/
 function sc_OutputPort() {
 }
 sc_OutputPort.prototype = new sc_Port();
 sc_OutputPort.prototype.appendJSString = function(obj) {
     /* do nothing */
 }
 sc_OutputPort.prototype.close = function() {
     /* do nothing */
 }
 function sc_StringOutputPort() {
     this.res = "";
 }
 sc_StringOutputPort.prototype = new sc_OutputPort();
 sc_StringOutputPort.prototype.appendJSString = function(s) {
     this.res += s;
 }
 sc_StringOutputPort.prototype.close = function() {
     return sc_jsstring2string(this.res);
 }
 /*** META ((export #t)) */
 function sc_getOutputString(sp) {
     return sc_jsstring2string(sp.res);
 }
 function sc_ErrorOutputPort() {
 }
 sc_ErrorOutputPort.prototype = new sc_OutputPort();
 sc_ErrorOutputPort.prototype.appendJSString = function(s) {
     throw "don't write on ErrorPort!";
 }
 sc_ErrorOutputPort.prototype.close = function() {
     /* do nothing */
 }
 function sc_GenericOutputPort(appendJSString, close) {
     this.appendJSString = appendJSString;
     if (close)
 	this.close = close;
 }
 sc_GenericOutputPort.prototype = new sc_OutputPort();
 /*** META ((export #t)
            (type bool)
            (peephole (postfix " instanceof sc_OutputPort")))
 */
 function sc_isOutputPort(o) {
     return (o instanceof sc_OutputPort);
 }
 /*** META ((export #t)
            (peephole (postfix ".close()")))
 */
 function sc_closeOutputPort(p) {
     return p.close();
 }
 /* ------------------ write ---------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_write(o, p) {
     if (p === undefined) // we assume not given
 	p = SC_DEFAULT_OUT;
     p.appendJSString(sc_toWriteString(o));
 }
 function sc_toWriteString(o) {
     if (o === null)
 	return "()";
     else if (o === true)
 	return "#t";
     else if (o === false)
 	return "#f";
     else if (o === undefined)
 	return "#unspecified";
     else if (typeof o === 'function')
 	return "#<procedure " + sc_hash(o) + ">";
     else if (o.sc_toWriteString)
 	return o.sc_toWriteString();
     else
 	return o.toString();
 }
 function sc_escapeWriteString(s) {
     var res = "";
     var j = 0;
     for (i = 0; i < s.length; i++) {
 	switch (s.charAt(i)) {
 	case "\0": res += s.substring(j, i) + "\\0"; j = i + 1; break;
 	case "\b": res += s.substring(j, i) + "\\b"; j = i + 1; break;
 	case "\f": res += s.substring(j, i) + "\\f"; j = i + 1; break;
 	case "\n": res += s.substring(j, i) + "\\n"; j = i + 1; break;
 	case "\r": res += s.substring(j, i) + "\\r"; j = i + 1; break;
 	case "\t": res += s.substring(j, i) + "\\t"; j = i + 1; break;
 	case "\v": res += s.substring(j, i) + "\\v"; j = i + 1; break;
 	case '"': res += s.substring(j, i) + '\\"'; j = i + 1; break;
 	case "\\": res += s.substring(j, i) + "\\\\"; j = i + 1; break;
 	default:
 	    var c = s.charAt(i);
 	    if ("\a" !== "a" && c == "\a") {
 		res += s.substring(j, i) + "\\a"; j = i + 1; continue;
 	    }
 	    if ("\v" !== "v" && c == "\v") {
 		res += s.substring(j, i) + "\\v"; j = i + 1; continue;
 	    }
 	    //if (s.charAt(i) < ' ' || s.charCodeAt(i) > 127) {
 	    // CARE: Manuel is this OK with HOP?
 	    if (s.charAt(i) < ' ') {
 		/* non printable character and special chars */
 		res += s.substring(j, i) + "\\x" + s.charCodeAt(i).toString(16);
 		j = i + 1;
 	    }
 	    // else just let i increase...
 	}
     }
     res += s.substring(j, i);
     return res;
 }
 /* ------------------ display ---------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_display(o, p) {
     if (p === undefined) // we assume not given
 	p = SC_DEFAULT_OUT;
     p.appendJSString(sc_toDisplayString(o));
 }
 function sc_toDisplayString(o) {
     if (o === null)
 	return "()";
     else if (o === true)
 	return "#t";
     else if (o === false)
 	return "#f";
     else if (o === undefined)
 	return "#unspecified";
     else if (typeof o === 'function')
 	return "#<procedure " + sc_hash(o) + ">";
     else if (o.sc_toDisplayString)
 	return o.sc_toDisplayString();
     else
 	return o.toString();
 }
 /* ------------------ newline ---------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_newline(p) {
     if (p === undefined) // we assume not given
 	p = SC_DEFAULT_OUT;
     p.appendJSString("\n");
 }
 /* ------------------ write-char ---------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_writeChar(c, p) {
     if (p === undefined) // we assume not given
 	p = SC_DEFAULT_OUT;
     p.appendJSString(c.val);
 }
 /* ------------------ write-circle ---------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_writeCircle(o, p) {
     if (p === undefined) // we assume not given
 	p = SC_DEFAULT_OUT;
     p.appendJSString(sc_toWriteCircleString(o));
 }
 function sc_toWriteCircleString(o) {
     var symb = sc_gensym("writeCircle");
     var nbPointer = new Object();
     nbPointer.nb = 0;
     sc_prepWriteCircle(o, symb, nbPointer);
     return sc_genToWriteCircleString(o, symb);
 }
 function sc_prepWriteCircle(o, symb, nbPointer) {
     // TODO sc_Struct
     if (o instanceof sc_Pair ||
 	o instanceof sc_Vector) {
 	if (o[symb] !== undefined) {
 	    // not the first visit.
 	    o[symb]++;
 	    // unless there is already a number, assign one.
 	    if (!o[symb + "nb"]) o[symb + "nb"] = nbPointer.nb++;
 	    return;
 	}
 	o[symb] = 0;
 	if (o instanceof sc_Pair) {
 	    sc_prepWriteCircle(o.car, symb, nbPointer);
 	    sc_prepWriteCircle(o.cdr, symb, nbPointer);
 	} else {
 	    for (var i = 0; i < o.length; i++)
 		sc_prepWriteCircle(o[i], symb, nbPointer);
 	}
     }
 }
 function sc_genToWriteCircleString(o, symb) {
     if (!(o instanceof sc_Pair ||
 	  o instanceof sc_Vector))
 	return sc_toWriteString(o);
     return o.sc_toWriteCircleString(symb);
 }
 sc_Pair.prototype.sc_toWriteCircleString = function(symb, inList) {
     if (this[symb + "use"]) { // use-flag is set. Just use it.
 	var nb = this[symb + "nb"];
 	if (this[symb]-- === 0) { // if we are the last use. remove all fields.
 	    delete this[symb];
 	    delete this[symb + "nb"];
 	    delete this[symb + "use"];
 	}
 	if (inList)
 	    return '. #' + nb + '#';
 	else
 	    return '#' + nb + '#';
     }
     if (this[symb]-- === 0) { // if we are the last use. remove all fields.
 	delete this[symb];
 	delete this[symb + "nb"];
 	delete this[symb + "use"];
     }
     var res = "";
     if (this[symb] !== undefined) { // implies > 0
 	this[symb + "use"] = true;
 	if (inList)
 	    res += '. #' + this[symb + "nb"] + '=';
 	else
 	    res += '#' + this[symb + "nb"] + '=';
 	inList = false;
     }
     if (!inList)
 	res += "(";
     // print car
     res += sc_genToWriteCircleString(this.car, symb);
     if (sc_isPair(this.cdr)) {
 	res += " " + this.cdr.sc_toWriteCircleString(symb, true);
     } else if (this.cdr !== null) {
 	res += " . " + sc_genToWriteCircleString(this.cdr, symb);
     }
     if (!inList)
 	res += ")";
     return res;
 };
 sc_Vector.prototype.sc_toWriteCircleString = function(symb) {
     if (this[symb + "use"]) { // use-flag is set. Just use it.
 	var nb = this[symb + "nb"];
 	if (this[symb]-- === 0) { // if we are the last use. remove all fields.
 	    delete this[symb];
 	    delete this[symb + "nb"];
 	    delete this[symb + "use"];
 	}
 	return '#' + nb + '#';
     }
     if (this[symb]-- === 0) { // if we are the last use. remove all fields.
 	delete this[symb];
 	delete this[symb + "nb"];
 	delete this[symb + "use"];
     }
     var res = "";
     if (this[symb] !== undefined) { // implies > 0
 	this[symb + "use"] = true;
 	res += '#' + this[symb + "nb"] + '=';
     }
     res += "#(";
     for (var i = 0; i < this.length; i++) {
 	res += sc_genToWriteCircleString(this[i], symb);
 	if (i < this.length - 1) res += " ";
     }
     res += ")";
     return res;
 };
 /* ------------------ print ---------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_print(s) {
     if (arguments.length === 1) {
 	sc_display(s);
 	sc_newline();
     }
     else {
 	for (var i = 0; i < arguments.length; i++)
 	    sc_display(arguments[i]);
 	sc_newline();
     }
 }
 /* ------------------ format ---------------------------------------------------*/
 /*** META ((export #t)) */
 function sc_format(s, args) {
    var len = s.length;
    var p = new sc_StringOutputPort();
    var i = 0, j = 1;
    while( i < len ) {
       var i2 = s.indexOf("~", i);
       if (i2 == -1) {
 	  p.appendJSString( s.substring( i, len ) );
 	  return p.close();
       } else {
 	 if (i2 > i) {
 	    if (i2 == (len - 1)) {
 		p.appendJSString(s.substring(i, len));
 		return p.close();
 	    } else {
 	       p.appendJSString(s.substring(i, i2));
 	       i = i2;
 	    }
 	 }
 	 switch(s.charCodeAt(i2 + 1)) {
 	    case 65:
 	    case 97:
 	       // a
 	       sc_display(arguments[j], p);
 	       i += 2; j++;
 	       break;
 	    case 83:
 	    case 115:
 	       // s
 	       sc_write(arguments[j], p);
 	       i += 2; j++;
 	       break;
 	    case 86:
 	    case 118:
 	       // v
 	       sc_display(arguments[j], p);
 	       p.appendJSString("\n");
 	       i += 2; j++;
 	       break;
 	    case 67:
 	    case 99:
 	       // c
 	       p.appendJSString(String.fromCharCode(arguments[j]));
 	       i += 2; j++;
 	       break;
 	    case 88:
 	    case 120:
 	       // x
 	       p.appendJSString(arguments[j].toString(6));
 	       i += 2; j++;
 	       break;
 	    case 79:
 	    case 111:
 	       // o
 	       p.appendJSString(arguments[j].toString(8));
 	       i += 2; j++;
 	       break;
 	    case 66:
 	    case 98:
 	       // b
 	       p.appendJSString(arguments[j].toString(2));
 	       i += 2; j++;
 	       break;
 	    case 37:
 	    case 110:
 	       // %, n
 	       p.appendJSString("\n");
 	       i += 2; break;
 	    case 114:
 	       // r
 	       p.appendJSString("\r");
 	       i += 2; break;
 	    case 126:
 	       // ~
 	       p.appendJSString("~");
 	       i += 2; break;
 	    default:
 	       sc_error( "format: illegal ~"
 			 + String.fromCharCode(s.charCodeAt(i2 + 1))
 			 + " sequence" );
 	       return "";
 	 }
       }
    }
    return p.close();
 }
 /* ------------------ global ports ---------------------------------------------------*/
 var SC_DEFAULT_IN = new sc_ErrorInputPort();
 var SC_DEFAULT_OUT = new sc_ErrorOutputPort();
 var SC_ERROR_OUT = new sc_ErrorOutputPort();
 var sc_SYMBOL_PREFIX = "\u1E9C";
 var sc_KEYWORD_PREFIX = "\u1E9D";
 /*** META ((export #t)
            (peephole (id))) */
 function sc_jsstring2string(s) {
     return s;
 }
 /*** META ((export #t)
            (peephole (prefix "'\\u1E9C' +")))
 */
 function sc_jsstring2symbol(s) {
     return sc_SYMBOL_PREFIX + s;
 }
 /*** META ((export #t)
            (peephole (id)))
 */
 function sc_string2jsstring(s) {
     return s;
 }
 /*** META ((export #t)
            (peephole (symbol2jsstring_immutable)))
 */
 function sc_symbol2jsstring(s) {
     return s.slice(1);
 }
 /*** META ((export #t)
            (peephole (postfix ".slice(1)")))
 */
 function sc_keyword2jsstring(k) {
     return k.slice(1);
 }
 /*** META ((export #t)
            (peephole (prefix "'\\u1E9D' +")))
 */
 function sc_jsstring2keyword(s) {
     return sc_KEYWORD_PREFIX + s;
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isKeyword(s) {
     return (typeof s === "string") &&
 	(s.charAt(0) === sc_KEYWORD_PREFIX);
 }
 /*** META ((export #t)) */
 var sc_gensym = function() {
     var counter = 1000;
     return function(sym) {
 	counter++;
 	if (!sym) sym = sc_SYMBOL_PREFIX;
 	return sym + "s" + counter + "~" + "^sC-GeNsYm ";
     };
 }();
 /*** META ((export #t)
            (type bool))
 */
 function sc_isEqual(o1, o2) {
     return ((o1 === o2) ||
 	    (sc_isPair(o1) && sc_isPair(o2)
 	     && sc_isPairEqual(o1, o2, sc_isEqual)) ||
 	    (sc_isVector(o1) && sc_isVector(o2)
 	     && sc_isVectorEqual(o1, o2, sc_isEqual)));
 }
 /*** META ((export number->symbol integer->symbol)) */
 function sc_number2symbol(x, radix) {
     return sc_SYMBOL_PREFIX + sc_number2jsstring(x, radix);
 }
 /*** META ((export number->string integer->string)) */
 var sc_number2string = sc_number2jsstring;
 /*** META ((export #t)) */
 function sc_symbol2number(s, radix) {
     return sc_jsstring2number(s.slice(1), radix);
 }
 /*** META ((export #t)) */
 var sc_string2number = sc_jsstring2number;
 /*** META ((export #t)
            (peephole (prefix "+" s)))
            ;; peephole will only apply if no radix is given.
 */
 function sc_string2integer(s, radix) {
     if (!radix) return +s;
     return parseInt(s, radix);
 }
 /*** META ((export #t)
            (peephole (prefix "+")))
 */
 function sc_string2real(s) {
     return +s;
 }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isSymbol(s) {
     return (typeof s === "string") &&
 	(s.charAt(0) === sc_SYMBOL_PREFIX);
 }
 /*** META ((export #t)
            (peephole (symbol2string_immutable)))
 */
 function sc_symbol2string(s) {
     return s.slice(1);
 }
 /*** META ((export #t)
            (peephole (prefix "'\\u1E9C' +")))
 */
 function sc_string2symbol(s) {
     return sc_SYMBOL_PREFIX + s;
 }
 /*** META ((export symbol-append)
            (peephole (symbolAppend_immutable)))
 */
 function sc_symbolAppend() {
     var res = sc_SYMBOL_PREFIX;
     for (var i = 0; i < arguments.length; i++)
 	res += arguments[i].slice(1);
     return res;
 }
 /*** META ((export #t)
            (peephole (postfix ".val")))
 */
 function sc_char2string(c) { return c.val; }
 /*** META ((export #t)
            (peephole (hole 1 "'\\u1E9C' + " c ".val")))
 */
 function sc_char2symbol(c) { return sc_SYMBOL_PREFIX + c.val; }
 /*** META ((export #t)
            (type bool))
 */
 function sc_isString(s) {
     return (typeof s === "string") &&
 	(s.charAt(0) !== sc_SYMBOL_PREFIX);
 }
 /*** META ((export #t)) */
 var sc_makeString = sc_makejsString;
 /*** META ((export #t)) */
 function sc_string() {
     for (var i = 0; i < arguments.length; i++)
 	arguments[i] = arguments[i].val;
     return "".concat.apply("", arguments);
 }
 /*** META ((export #t)
            (peephole (postfix ".length")))
 */
 function sc_stringLength(s) { return s.length; }
 /*** META ((export #t)) */
 function sc_stringRef(s, k) {
     return new sc_Char(s.charAt(k));
 }
 /* there's no stringSet in the immutable version
 function sc_stringSet(s, k, c)
 */
 /*** META ((export string=?)
 	   (type bool)
            (peephole (hole 2 str1 " === " str2)))
 */
 function sc_isStringEqual(s1, s2) {
     return s1 === s2;
 }
 /*** META ((export string<?)
 	   (type bool)
            (peephole (hole 2 str1 " < " str2)))
 */
 function sc_isStringLess(s1, s2) {
     return s1 < s2;
 }
 /*** META ((export string>?)
 	   (type bool)
            (peephole (hole 2 str1 " > " str2)))
 */
 function sc_isStringGreater(s1, s2) {
     return s1 > s2;
 }
 /*** META ((export string<=?)
 	   (type bool)
            (peephole (hole 2 str1 " <= " str2)))
 */
 function sc_isStringLessEqual(s1, s2) {
     return s1 <= s2;
 }
 /*** META ((export string>=?)
 	   (type bool)
            (peephole (hole 2 str1 " >= " str2)))
 */
 function sc_isStringGreaterEqual(s1, s2) {
     return s1 >= s2;
 }
 /*** META ((export string-ci=?)
 	   (type bool)
            (peephole (hole 2 str1 ".toLowerCase() === " str2 ".toLowerCase()")))
 */
 function sc_isStringCIEqual(s1, s2) {
     return s1.toLowerCase() === s2.toLowerCase();
 }
 /*** META ((export string-ci<?)
 	   (type bool)
            (peephole (hole 2 str1 ".toLowerCase() < " str2 ".toLowerCase()")))
 */
 function sc_isStringCILess(s1, s2) {
     return s1.toLowerCase() < s2.toLowerCase();
 }
 /*** META ((export string-ci>?)
 	   (type bool)
            (peephole (hole 2 str1 ".toLowerCase() > " str2 ".toLowerCase()")))
 */
 function sc_isStringCIGreater(s1, s2) {
     return s1.toLowerCase() > s2.toLowerCase();
 }
 /*** META ((export string-ci<=?)
 	   (type bool)
            (peephole (hole 2 str1 ".toLowerCase() <= " str2 ".toLowerCase()")))
 */
 function sc_isStringCILessEqual(s1, s2) {
     return s1.toLowerCase() <= s2.toLowerCase();
 }
 /*** META ((export string-ci>=?)
 	   (type bool)
            (peephole (hole 2 str1 ".toLowerCase() >= " str2 ".toLowerCase()")))
 */
 function sc_isStringCIGreaterEqual(s1, s2) {
     return s1.toLowerCase() >= s2.toLowerCase();
 }
 /*** META ((export #t)
            (peephole (hole 3 s ".substring(" start ", " end ")")))
 */
 function sc_substring(s, start, end) {
     return s.substring(start, end);
 }
 /*** META ((export #t))
 */
 function sc_isSubstring_at(s1, s2, i) {
     return s2 == s1.substring(i, i+ s2.length);
 }
 /*** META ((export #t)
            (peephole (infix 0 #f "+" "''")))
 */
 function sc_stringAppend() {
     return "".concat.apply("", arguments);
 }
 /*** META ((export #t)) */
 var sc_string2list = sc_jsstring2list;
 /*** META ((export #t)) */
 var sc_list2string = sc_list2jsstring;
 /*** META ((export #t)
            (peephole (id)))
 */
 function sc_stringCopy(s) {
     return s;
 }
 /* there's no string-fill in the immutable version
 function sc_stringFill(s, c)
 */
 /*** META ((export #t)
            (peephole (postfix ".slice(1)")))
 */
 function sc_keyword2string(o) {
     return o.slice(1);
 }
 /*** META ((export #t)
            (peephole (prefix "'\\u1E9D' +")))
 */
 function sc_string2keyword(o) {
     return sc_KEYWORD_PREFIX + o;
 }
 String.prototype.sc_toDisplayString = function() {
     if (this.charAt(0) === sc_SYMBOL_PREFIX)
 	// TODO: care for symbols with spaces (escape-chars symbols).
 	return this.slice(1);
     else if (this.charAt(0) === sc_KEYWORD_PREFIX)
 	return ":" + this.slice(1);
     else
 	return this.toString();
 };
 String.prototype.sc_toWriteString = function() {
     if (this.charAt(0) === sc_SYMBOL_PREFIX)
 	// TODO: care for symbols with spaces (escape-chars symbols).
 	return this.slice(1);
     else if (this.charAt(0) === sc_KEYWORD_PREFIX)
 	return ":" + this.slice(1);
     else
 	return '"' + sc_escapeWriteString(this) + '"';
 };
 /* Exported Variables */
 var BgL_testzd2boyerzd2;
 var BgL_nboyerzd2benchmarkzd2;
 var BgL_setupzd2boyerzd2;
 /* End Exports */
 var translate_term_nboyer;
 var translate_args_nboyer;
 var untranslate_term_nboyer;
 var BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer;
 var BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer;
 var translate_alist_nboyer;
 var apply_subst_nboyer;
 var apply_subst_lst_nboyer;
 var tautologyp_nboyer;
 var if_constructor_nboyer;
 var rewrite_count_nboyer;
 var rewrite_nboyer;
 var rewrite_args_nboyer;
 var unify_subst_nboyer;
 var one_way_unify1_nboyer;
 var false_term_nboyer;
 var true_term_nboyer;
 var trans_of_implies1_nboyer;
 var is_term_equal_nboyer;
 var is_term_member_nboyer;
 var const_nboyer;
 var sc_const_3_nboyer;
 var sc_const_4_nboyer;
 {
     (sc_const_4_nboyer = (new sc_Pair("\u1E9Cimplies",(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cz",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cz",(new sc_Pair("\u1E9Cu",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cu",(new sc_Pair("\u1E9Cw",null)))))),null)))))),null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cw",null)))))),null)))))));
     (sc_const_3_nboyer = sc_list((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ccompile",(new sc_Pair("\u1E9Cform",null)))),(new sc_Pair((new sc_Pair("\u1E9Creverse",(new sc_Pair((new sc_Pair("\u1E9Ccodegen",(new sc_Pair((new sc_Pair("\u1E9Coptimize",(new sc_Pair("\u1E9Cform",null)))),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ceqp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cy",null)))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cgreaterp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Clesseqp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cgreatereqp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cboolean",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cor",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Ct",null)),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cf",null)),null)))))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ciff",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ceven1",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Ct",null)),(new sc_Pair((new sc_Pair("\u1E9Codd",(new sc_Pair((new sc_Pair("\u1E9Csub1",(new sc_Pair("\u1E9Cx",null)))),null)))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ccountps-",(new sc_Pair("\u1E9Cl",(new sc_Pair("\u1E9Cpred",null)))))),(new sc_Pair((new sc_Pair("\u1E9Ccountps-loop",(new sc_Pair("\u1E9Cl",(new sc_Pair("\u1E9Cpred",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cfact-",(new sc_Pair("\u1E9Ci",null)))),(new sc_Pair((new sc_Pair("\u1E9Cfact-loop",(new sc_Pair("\u1E9Ci",(new sc_Pair((1),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Creverse-",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Creverse-loop",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cdivides",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair((new sc_Pair("\u1E9Cremainder",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cassume-true",(new sc_Pair("\u1E9Cvar",(new sc_Pair("\u1E9Calist",null)))))),(new sc_Pair((new sc_Pair("\u1E9Ccons",(new sc_Pair((new sc_Pair("\u1E9Ccons",(new sc_Pair("\u1E9Cvar",(new sc_Pair((new sc_Pair("\u1E9Ct",null)),null)))))),(new sc_Pair("\u1E9Calist",null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cassume-false",(new sc_Pair("\u1E9Cvar",(new sc_Pair("\u1E9Calist",null)))))),(new sc_Pair((new sc_Pair("\u1E9Ccons",(new sc_Pair((new sc_Pair("\u1E9Ccons",(new sc_Pair("\u1E9Cvar",(new sc_Pair((new sc_Pair("\u1E9Cf",null)),null)))))),(new sc_Pair("\u1E9Calist",null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ctautology-checker",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Ctautologyp",(new sc_Pair((new sc_Pair("\u1E9Cnormalize",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cfalsify",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cfalsify1",(new sc_Pair((new sc_Pair("\u1E9Cnormalize",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cprime",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Cx",null)))),null)))),(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cadd1",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))),null)))))),null)))),(new sc_Pair((new sc_Pair("\u1E9Cprime1",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Csub1",(new sc_Pair("\u1E9Cx",null)))),null)))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair("\u1E9Cp",(new sc_Pair("\u1E9Cq",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cp",(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cq",(new sc_Pair((new sc_Pair("\u1E9Ct",null)),(new sc_Pair((new sc_Pair("\u1E9Cf",null)),null)))))))),(new sc_Pair((new sc_Pair("\u1E9Cf",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cor",(new sc_Pair("\u1E9Cp",(new sc_Pair("\u1E9Cq",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cp",(new sc_Pair((new sc_Pair("\u1E9Ct",null)),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cq",(new sc_Pair((new sc_Pair("\u1E9Ct",null)),(new sc_Pair((new sc_Pair("\u1E9Cf",null)),null)))))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair("\u1E9Cp",null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cp",(new sc_Pair((new sc_Pair("\u1E9Cf",null)),(new sc_Pair((new sc_Pair("\u1E9Ct",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cp",(new sc_Pair("\u1E9Cq",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cp",(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cq",(new sc_Pair((new sc_Pair("\u1E9Ct",null)),(new sc_Pair((new sc_Pair("\u1E9Cf",null)),null)))))))),(new sc_Pair((new sc_Pair("\u1E9Ct",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Cnumberp",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",(new sc_Pair("\u1E9Cc",null)))))))),(new sc_Pair("\u1E9Cd",(new sc_Pair("\u1E9Ce",null)))))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Ca",(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cb",(new sc_Pair("\u1E9Cd",(new sc_Pair("\u1E9Ce",null)))))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair("\u1E9Cc",(new sc_Pair("\u1E9Cd",(new sc_Pair("\u1E9Ce",null)))))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cor",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair((new sc_Pair("\u1E9Cnumberp",(new sc_Pair("\u1E9Cx",null)))),null)))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair("\u1E9Cz",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cz",null)))))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Ca",null)))),(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Cb",null)))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cdifference",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cx",null)))))),(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cc",null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cb",null)))),(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cc",null)))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),(new sc_Pair((new sc_Pair("\u1E9Cdifference",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cdifference",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cnumberp",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cor",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))),(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Cy",null)))),null)))))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new 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sc_Pair((new sc_Pair("\u1E9Cflatten",(new sc_Pair("\u1E9Cx",null)))),null)))),(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cflatten",(new sc_Pair((new sc_Pair("\u1E9Ccdr",(new sc_Pair((new sc_Pair("\u1E9Cgopher",(new sc_Pair("\u1E9Cx",null)))),null)))),null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Clistp",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Ccdr",(new sc_Pair((new sc_Pair("\u1E9Cflatten",(new sc_Pair("\u1E9Cx",null)))),null)))),(new sc_Pair((new sc_Pair("\u1E9Ccons",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cquotient",(new sc_Pair((new sc_Pair("\u1E9Ctimes",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Cy",null)))),(new sc_Pair((new sc_Pair("\u1E9Czero",null)),(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cx",null)))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cget",(new sc_Pair("\u1E9Cj",(new sc_Pair((new sc_Pair("\u1E9Cset",(new sc_Pair("\u1E9Ci",(new sc_Pair("\u1E9Cval",(new sc_Pair("\u1E9Cmem",null)))))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Ceqp",(new sc_Pair("\u1E9Cj",(new sc_Pair("\u1E9Ci",null)))))),(new sc_Pair("\u1E9Cval",(new sc_Pair((new sc_Pair("\u1E9Cget",(new sc_Pair("\u1E9Cj",(new sc_Pair("\u1E9Cmem",null)))))),null)))))))),null))))))));
     (const_nboyer = (new sc_Pair((new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cf",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Cc",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))),null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cf",(new sc_Pair((new sc_Pair("\u1E9Ctimes",(new sc_Pair((new sc_Pair("\u1E9Ctimes",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Cc",(new sc_Pair("\u1E9Cd",null)))))),null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cz",(new sc_Pair("\u1E9Cf",(new sc_Pair((new sc_Pair("\u1E9Creverse",(new sc_Pair((new sc_Pair("\u1E9Cappend",(new sc_Pair((new sc_Pair("\u1E9Cappend",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cu",(new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cdifference",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),null)))))))),(new sc_Pair((new sc_Pair("\u1E9Cw",(new sc_Pair("\u1E9Clessp",(new sc_Pair((new sc_Pair("\u1E9Cremainder",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cmember",(new sc_Pair("\u1E9Ca",(new sc_Pair((new sc_Pair("\u1E9Clength",(new sc_Pair("\u1E9Cb",null)))),null)))))),null)))))))),null)))))))))));
     BgL_nboyerzd2benchmarkzd2 = function() {
         var args = null;
         for (var sc_tmp = arguments.length - 1; sc_tmp >= 0; sc_tmp--) {
             args = sc_cons(arguments[sc_tmp], args);
         }
         var n;
         return ((n = ((args === null)?(0):(args.car))), (BgL_setupzd2boyerzd2()), (BgL_runzd2benchmarkzd2(("nboyer"+(sc_number2string(n))), (1), function() {
             return (BgL_testzd2boyerzd2(n));
         }, function(rewrites) {
             if ((sc_isNumber(rewrites)))
                 switch (n) {
                 case (0):
                     return (rewrites===(95024));
                     break;
                 case (1):
                     return (rewrites===(591777));
                     break;
                 case (2):
                     return (rewrites===(1813975));
                     break;
                 case (3):
                     return (rewrites===(5375678));
                     break;
                 case (4):
                     return (rewrites===(16445406));
                     break;
                 case (5):
                     return (rewrites===(51507739));
                     break;
                 default:
                     return true;
                     break;
                 }
             else
                 return false;
         })));
     };
     BgL_setupzd2boyerzd2 = function() {
         return true;
     };
     BgL_testzd2boyerzd2 = function() {
         return true;
     };
     translate_term_nboyer = function(term) {
         var lst;
         return (!(term instanceof sc_Pair)?term:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((term.car))), ((lst = (term.cdr)), ((lst === null)?null:(new sc_Pair((translate_term_nboyer((lst.car))), (translate_args_nboyer((lst.cdr))))))))));
     };
     translate_args_nboyer = function(lst) {
         var sc_lst_5;
         var term;
         return ((lst === null)?null:(new sc_Pair(((term = (lst.car)), (!(term instanceof sc_Pair)?term:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((term.car))), (translate_args_nboyer((term.cdr))))))), ((sc_lst_5 = (lst.cdr)), ((sc_lst_5 === null)?null:(new sc_Pair((translate_term_nboyer((sc_lst_5.car))), (translate_args_nboyer((sc_lst_5.cdr))))))))));
     };
     untranslate_term_nboyer = function(term) {
         var optrOpnd;
         var tail1131;
         var L1127;
         var falseHead1130;
         var symbol_record;
         if (!(term instanceof sc_Pair))
             return term;
         else
             {
                 (falseHead1130 = (new sc_Pair(null, null)));
                 (L1127 = (term.cdr));
                 (tail1131 = falseHead1130);
                 while (!(L1127 === null)) {
                     {
                         (tail1131.cdr = (new sc_Pair((untranslate_term_nboyer((L1127.car))), null)));
                         (tail1131 = (tail1131.cdr));
                         (L1127 = (L1127.cdr));
                     }
                 }
                 (optrOpnd = (falseHead1130.cdr));
                 return (new sc_Pair(((symbol_record = (term.car)), (symbol_record[(0)])), optrOpnd));
             }
     };
     BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer = function(sym) {
         var r;
         var x;
         return ((x = (sc_assq(sym, BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer))), ((x!== false)?(x.cdr):((r = [sym, null]), (BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer = (new sc_Pair((new sc_Pair(sym, r)), BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer))), r)));
     };
     (BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer = null);
     translate_alist_nboyer = function(alist) {
         var sc_alist_6;
         var term;
         return ((alist === null)?null:(new sc_Pair((new sc_Pair((alist.car.car), ((term = (alist.car.cdr)), (!(term instanceof sc_Pair)?term:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((term.car))), (translate_args_nboyer((term.cdr))))))))), ((sc_alist_6 = (alist.cdr)), ((sc_alist_6 === null)?null:(new sc_Pair((new sc_Pair((sc_alist_6.car.car), (translate_term_nboyer((sc_alist_6.car.cdr))))), (translate_alist_nboyer((sc_alist_6.cdr))))))))));
     };
     apply_subst_nboyer = function(alist, term) {
         var lst;
         var temp_temp;
         return (!(term instanceof sc_Pair)?((temp_temp = (sc_assq(term, alist))), ((temp_temp!== false)?(temp_temp.cdr):term)):(new sc_Pair((term.car), ((lst = (term.cdr)), ((lst === null)?null:(new sc_Pair((apply_subst_nboyer(alist, (lst.car))), (apply_subst_lst_nboyer(alist, (lst.cdr))))))))));
     };
     apply_subst_lst_nboyer = function(alist, lst) {
         var sc_lst_7;
         return ((lst === null)?null:(new sc_Pair((apply_subst_nboyer(alist, (lst.car))), ((sc_lst_7 = (lst.cdr)), ((sc_lst_7 === null)?null:(new sc_Pair((apply_subst_nboyer(alist, (sc_lst_7.car))), (apply_subst_lst_nboyer(alist, (sc_lst_7.cdr))))))))));
     };
     tautologyp_nboyer = function(sc_x_11, true_lst, false_lst) {
         var tmp1125;
         var x;
         var tmp1126;
         var sc_x_8;
         var sc_tmp1125_9;
         var sc_tmp1126_10;
         var sc_x_11;
         var true_lst;
         var false_lst;
         while (true) {
             if ((((sc_tmp1126_10 = (is_term_equal_nboyer(sc_x_11, true_term_nboyer))), ((sc_tmp1126_10!== false)?sc_tmp1126_10:(is_term_member_nboyer(sc_x_11, true_lst))))!== false))
                 return true;
             else
                 if ((((sc_tmp1125_9 = (is_term_equal_nboyer(sc_x_11, false_term_nboyer))), ((sc_tmp1125_9!== false)?sc_tmp1125_9:(is_term_member_nboyer(sc_x_11, false_lst))))!== false))
                     return false;
                 else
                     if (!(sc_x_11 instanceof sc_Pair))
                         return false;
                     else
                         if (((sc_x_11.car)===if_constructor_nboyer))
                             if ((((sc_x_8 = (sc_x_11.cdr.car)), (tmp1126 = (is_term_equal_nboyer(sc_x_8, true_term_nboyer))), ((tmp1126!== false)?tmp1126:(is_term_member_nboyer(sc_x_8, true_lst))))!== false))
                                 (sc_x_11 = (sc_x_11.cdr.cdr.car));
                             else
                                 if ((((x = (sc_x_11.cdr.car)), (tmp1125 = (is_term_equal_nboyer(x, false_term_nboyer))), ((tmp1125!== false)?tmp1125:(is_term_member_nboyer(x, false_lst))))!== false))
                                     (sc_x_11 = (sc_x_11.cdr.cdr.cdr.car));
                                 else
                                     if (((tautologyp_nboyer((sc_x_11.cdr.cdr.car), (new sc_Pair((sc_x_11.cdr.car), true_lst)), false_lst))!== false))
                                         {
                                             (false_lst = (new sc_Pair((sc_x_11.cdr.car), false_lst)));
                                             (sc_x_11 = (sc_x_11.cdr.cdr.cdr.car));
                                         }
                                     else
                                         return false;
                         else
                             return false;
         }
     };
     (if_constructor_nboyer = "\u1E9C*");
     (rewrite_count_nboyer = (0));
     rewrite_nboyer = function(term) {
         var term2;
         var sc_term_12;
         var lst;
         var symbol_record;
         var sc_lst_13;
         {
             (++rewrite_count_nboyer);
             if (!(term instanceof sc_Pair))
                 return term;
             else
                 {
                     (sc_term_12 = (new sc_Pair((term.car), ((sc_lst_13 = (term.cdr)), ((sc_lst_13 === null)?null:(new sc_Pair((rewrite_nboyer((sc_lst_13.car))), (rewrite_args_nboyer((sc_lst_13.cdr))))))))));
                     (lst = ((symbol_record = (term.car)), (symbol_record[(1)])));
                     while (true) {
                         if ((lst === null))
                             return sc_term_12;
                         else
                             if ((((term2 = ((lst.car).cdr.car)), (unify_subst_nboyer = null), (one_way_unify1_nboyer(sc_term_12, term2)))!== false))
                                 return (rewrite_nboyer((apply_subst_nboyer(unify_subst_nboyer, ((lst.car).cdr.cdr.car)))));
                             else
                                 (lst = (lst.cdr));
                     }
                 }
         }
     };
     rewrite_args_nboyer = function(lst) {
         var sc_lst_14;
         return ((lst === null)?null:(new sc_Pair((rewrite_nboyer((lst.car))), ((sc_lst_14 = (lst.cdr)), ((sc_lst_14 === null)?null:(new sc_Pair((rewrite_nboyer((sc_lst_14.car))), (rewrite_args_nboyer((sc_lst_14.cdr))))))))));
     };
     (unify_subst_nboyer = "\u1E9C*");
     one_way_unify1_nboyer = function(term1, term2) {
         var lst1;
         var lst2;
         var temp_temp;
         if (!(term2 instanceof sc_Pair))
             {
                 (temp_temp = (sc_assq(term2, unify_subst_nboyer)));
                 if ((temp_temp!== false))
                     return (is_term_equal_nboyer(term1, (temp_temp.cdr)));
                 else
                     if ((sc_isNumber(term2)))
                         return (sc_isEqual(term1, term2));
                     else
                         {
                             (unify_subst_nboyer = (new sc_Pair((new sc_Pair(term2, term1)), unify_subst_nboyer)));
                             return true;
                         }
             }
         else
             if (!(term1 instanceof sc_Pair))
                 return false;
             else
                 if (((term1.car)===(term2.car)))
                     {
                         (lst1 = (term1.cdr));
                         (lst2 = (term2.cdr));
                         while (true) {
                             if ((lst1 === null))
                                 return (lst2 === null);
                             else
                                 if ((lst2 === null))
                                     return false;
                                 else
                                     if (((one_way_unify1_nboyer((lst1.car), (lst2.car)))!== false))
                                         {
                                             (lst1 = (lst1.cdr));
                                             (lst2 = (lst2.cdr));
                                         }
                                     else
                                         return false;
                         }
                     }
                 else
                     return false;
     };
     (false_term_nboyer = "\u1E9C*");
     (true_term_nboyer = "\u1E9C*");
     trans_of_implies1_nboyer = function(n) {
         var sc_n_15;
         return ((sc_isEqual(n, (1)))?(sc_list("\u1E9Cimplies", (0), (1))):(sc_list("\u1E9Cand", (sc_list("\u1E9Cimplies", (n-(1)), n)), ((sc_n_15 = (n-(1))), ((sc_isEqual(sc_n_15, (1)))?(sc_list("\u1E9Cimplies", (0), (1))):(sc_list("\u1E9Cand", (sc_list("\u1E9Cimplies", (sc_n_15-(1)), sc_n_15)), (trans_of_implies1_nboyer((sc_n_15-(1)))))))))));
     };
     is_term_equal_nboyer = function(x, y) {
         var lst1;
         var lst2;
         var r2;
         var r1;
         if ((x instanceof sc_Pair))
             if ((y instanceof sc_Pair))
                 if ((((r1 = (x.car)), (r2 = (y.car)), (r1===r2))!== false))
                     {
                         (lst1 = (x.cdr));
                         (lst2 = (y.cdr));
                         while (true) {
                             if ((lst1 === null))
                                 return (lst2 === null);
                             else
                                 if ((lst2 === null))
                                     return false;
                                 else
                                     if (((is_term_equal_nboyer((lst1.car), (lst2.car)))!== false))
                                         {
                                             (lst1 = (lst1.cdr));
                                             (lst2 = (lst2.cdr));
                                         }
                                     else
                                         return false;
                         }
                     }
                 else
                     return false;
             else
                 return false;
         else
             return (sc_isEqual(x, y));
     };
     is_term_member_nboyer = function(x, lst) {
         var x;
         var lst;
         while (true) {
             if ((lst === null))
                 return false;
             else
                 if (((is_term_equal_nboyer(x, (lst.car)))!== false))
                     return true;
                 else
                     (lst = (lst.cdr));
         }
     };
     BgL_setupzd2boyerzd2 = function() {
         var symbol_record;
         var value;
         var BgL_sc_symbolzd2record_16zd2;
         var sym;
         var sc_sym_17;
         var term;
         var lst;
         var sc_term_18;
         var sc_term_19;
         {
             (BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer = null);
             (if_constructor_nboyer = (BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer("\u1E9Cif")));
             (false_term_nboyer = ((sc_term_19 = (new sc_Pair("\u1E9Cf",null))), (!(sc_term_19 instanceof sc_Pair)?sc_term_19:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((sc_term_19.car))), (translate_args_nboyer((sc_term_19.cdr))))))));
             (true_term_nboyer = ((sc_term_18 = (new sc_Pair("\u1E9Ct",null))), (!(sc_term_18 instanceof sc_Pair)?sc_term_18:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((sc_term_18.car))), (translate_args_nboyer((sc_term_18.cdr))))))));
             (lst = sc_const_3_nboyer);
             while (!(lst === null)) {
                 {
                     (term = (lst.car));
                     if (((term instanceof sc_Pair)&&(((term.car)==="\u1E9Cequal")&&((term.cdr.car) instanceof sc_Pair))))
                         {
                             (sc_sym_17 = ((term.cdr.car).car));
                             (value = (new sc_Pair((!(term instanceof sc_Pair)?term:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((term.car))), (translate_args_nboyer((term.cdr)))))), ((sym = ((term.cdr.car).car)), (BgL_sc_symbolzd2record_16zd2 = (BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer(sym))), (BgL_sc_symbolzd2record_16zd2[(1)])))));
                             (symbol_record = (BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer(sc_sym_17)));
                             (symbol_record[(1)] = value);
                         }
                     else
                         (sc_error("ADD-LEMMA did not like term:  ", term));
                     (lst = (lst.cdr));
                 }
             }
             return true;
         }
     };
     BgL_testzd2boyerzd2 = function(n) {
         var optrOpnd;
         var term;
         var sc_n_20;
         var answer;
         var sc_term_21;
         var sc_term_22;
         {
             (rewrite_count_nboyer = (0));
             (term = sc_const_4_nboyer);
             (sc_n_20 = n);
             while (!(sc_n_20=== 0)) {
                 {
                     (term = (sc_list("\u1E9Cor", term, (new sc_Pair("\u1E9Cf",null)))));
                     (--sc_n_20);
                 }
             }
             (sc_term_22 = term);
             if (!(sc_term_22 instanceof sc_Pair))
                 (optrOpnd = sc_term_22);
             else
                 (optrOpnd = (new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((sc_term_22.car))), (translate_args_nboyer((sc_term_22.cdr))))));
             (sc_term_21 = (apply_subst_nboyer(((const_nboyer === null)?null:(new sc_Pair((new sc_Pair((const_nboyer.car.car), (translate_term_nboyer((const_nboyer.car.cdr))))), (translate_alist_nboyer((const_nboyer.cdr)))))), optrOpnd)));
             (answer = (tautologyp_nboyer((rewrite_nboyer(sc_term_21)), null, null)));
             (sc_write(rewrite_count_nboyer));
             (sc_display(" rewrites"));
             (sc_newline());
             if ((answer!== false))
                 return rewrite_count_nboyer;
             else
                 return false;
         }
     };
 }
 /* Exported Variables */
 var BgL_parsezd2ze3nbzd2treesze3;
 var BgL_earleyzd2benchmarkzd2;
 var BgL_parsezd2ze3parsedzf3zc2;
 var test;
 var BgL_parsezd2ze3treesz31;
 var BgL_makezd2parserzd2;
 /* End Exports */
 var const_earley;
 {
     (const_earley = (new sc_Pair((new sc_Pair("\u1E9Cs",(new sc_Pair((new sc_Pair("\u1E9Ca",null)),(new sc_Pair((new sc_Pair("\u1E9Cs",(new sc_Pair("\u1E9Cs",null)))),null)))))),null)));
     BgL_makezd2parserzd2 = function(grammar, lexer) {
         var i;
         var parser_descr;
         var def_loop;
         var nb_nts;
         var names;
         var steps;
         var predictors;
         var enders;
         var starters;
         var nts;
         var sc_names_1;
         var sc_steps_2;
         var sc_predictors_3;
         var sc_enders_4;
         var sc_starters_5;
         var nb_confs;
         var BgL_sc_defzd2loop_6zd2;
         var BgL_sc_nbzd2nts_7zd2;
         var sc_nts_8;
         var BgL_sc_defzd2loop_9zd2;
         var ind;
         {
             ind = function(nt, sc_nts_10) {
                 var i;
                 {
                     (i = ((sc_nts_10.length)-(1)));
                     while (true) {
                         if ((i>=(0)))
                             if ((sc_isEqual((sc_nts_10[i]), nt)))
                                 return i;
                             else
                                 (--i);
                         else
                             return false;
                     }
                 }
             };
             (sc_nts_8 = ((BgL_sc_defzd2loop_9zd2 = function(defs, sc_nts_11) {
                 var rule_loop;
                 var head;
                 var def;
                 return ((defs instanceof sc_Pair)?((def = (defs.car)), (head = (def.car)), (rule_loop = function(rules, sc_nts_12) {
                     var nt;
                     var l;
                     var sc_nts_13;
                     var rule;
                     if ((rules instanceof sc_Pair))
                         {
                             (rule = (rules.car));
                             (l = rule);
                             (sc_nts_13 = sc_nts_12);
                             while ((l instanceof sc_Pair)) {
                                 {
                                     (nt = (l.car));
                                     (l = (l.cdr));
                                     (sc_nts_13 = (((sc_member(nt, sc_nts_13))!== false)?sc_nts_13:(new sc_Pair(nt, sc_nts_13))));
                                 }
                             }
                             return (rule_loop((rules.cdr), sc_nts_13));
                         }
                     else
                         return (BgL_sc_defzd2loop_9zd2((defs.cdr), sc_nts_12));
                 }), (rule_loop((def.cdr), (((sc_member(head, sc_nts_11))!== false)?sc_nts_11:(new sc_Pair(head, sc_nts_11)))))):(sc_list2vector((sc_reverse(sc_nts_11)))));
             }), (BgL_sc_defzd2loop_9zd2(grammar, null))));
             (BgL_sc_nbzd2nts_7zd2 = (sc_nts_8.length));
             (nb_confs = (((BgL_sc_defzd2loop_6zd2 = function(defs, BgL_sc_nbzd2confs_14zd2) {
                 var rule_loop;
                 var def;
                 return ((defs instanceof sc_Pair)?((def = (defs.car)), (rule_loop = function(rules, BgL_sc_nbzd2confs_15zd2) {
                     var l;
                     var BgL_sc_nbzd2confs_16zd2;
                     var rule;
                     if ((rules instanceof sc_Pair))
                         {
                             (rule = (rules.car));
                             (l = rule);
                             (BgL_sc_nbzd2confs_16zd2 = BgL_sc_nbzd2confs_15zd2);
                             while ((l instanceof sc_Pair)) {
                                 {
                                     (l = (l.cdr));
                                     (++BgL_sc_nbzd2confs_16zd2);
                                 }
                             }
                             return (rule_loop((rules.cdr), (BgL_sc_nbzd2confs_16zd2+(1))));
                         }
                     else
                         return (BgL_sc_defzd2loop_6zd2((defs.cdr), BgL_sc_nbzd2confs_15zd2));
                 }), (rule_loop((def.cdr), BgL_sc_nbzd2confs_14zd2))):BgL_sc_nbzd2confs_14zd2);
             }), (BgL_sc_defzd2loop_6zd2(grammar, (0))))+BgL_sc_nbzd2nts_7zd2));
             (sc_starters_5 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
             (sc_enders_4 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
             (sc_predictors_3 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
             (sc_steps_2 = (sc_makeVector(nb_confs, false)));
             (sc_names_1 = (sc_makeVector(nb_confs, false)));
             (nts = sc_nts_8);
             (starters = sc_starters_5);
             (enders = sc_enders_4);
             (predictors = sc_predictors_3);
             (steps = sc_steps_2);
             (names = sc_names_1);
             (nb_nts = (sc_nts_8.length));
             (i = (nb_nts-(1)));
             while ((i>=(0))) {
                 {
                     (sc_steps_2[i] = (i-nb_nts));
                     (sc_names_1[i] = (sc_list((sc_nts_8[i]), (0))));
                     (sc_enders_4[i] = (sc_list(i)));
                     (--i);
                 }
             }
             def_loop = function(defs, conf) {
                 var rule_loop;
                 var head;
                 var def;
                 return ((defs instanceof sc_Pair)?((def = (defs.car)), (head = (def.car)), (rule_loop = function(rules, conf, rule_num) {
                     var i;
                     var sc_i_17;
                     var nt;
                     var l;
                     var sc_conf_18;
                     var sc_i_19;
                     var rule;
                     if ((rules instanceof sc_Pair))
                         {
                             (rule = (rules.car));
                             (names[conf] = (sc_list(head, rule_num)));
                             (sc_i_19 = (ind(head, nts)));
                             (starters[sc_i_19] = (new sc_Pair(conf, (starters[sc_i_19]))));
                             (l = rule);
                             (sc_conf_18 = conf);
                             while ((l instanceof sc_Pair)) {
                                 {
                                     (nt = (l.car));
                                     (steps[sc_conf_18] = (ind(nt, nts)));
                                     (sc_i_17 = (ind(nt, nts)));
                                     (predictors[sc_i_17] = (new sc_Pair(sc_conf_18, (predictors[sc_i_17]))));
                                     (l = (l.cdr));
                                     (++sc_conf_18);
                                 }
                             }
                             (steps[sc_conf_18] = ((ind(head, nts))-nb_nts));
                             (i = (ind(head, nts)));
                             (enders[i] = (new sc_Pair(sc_conf_18, (enders[i]))));
                             return (rule_loop((rules.cdr), (sc_conf_18+(1)), (rule_num+(1))));
                         }
                     else
                         return (def_loop((defs.cdr), conf));
                 }), (rule_loop((def.cdr), conf, (1)))):undefined);
             };
             (def_loop(grammar, (sc_nts_8.length)));
             (parser_descr = [lexer, sc_nts_8, sc_starters_5, sc_enders_4, sc_predictors_3, sc_steps_2, sc_names_1]);
             return function(input) {
                 var optrOpnd;
                 var sc_optrOpnd_20;
                 var sc_optrOpnd_21;
                 var sc_optrOpnd_22;
                 var loop1;
                 var BgL_sc_stateza2_23za2;
                 var toks;
                 var BgL_sc_nbzd2nts_24zd2;
                 var sc_steps_25;
                 var sc_enders_26;
                 var state_num;
                 var BgL_sc_statesza2_27za2;
                 var states;
                 var i;
                 var conf;
                 var l;
                 var tok_nts;
                 var sc_i_28;
                 var sc_i_29;
                 var l1;
                 var l2;
                 var tok;
                 var tail1129;
                 var L1125;
                 var goal_enders;
                 var BgL_sc_statesza2_30za2;
                 var BgL_sc_nbzd2nts_31zd2;
                 var BgL_sc_nbzd2confs_32zd2;
                 var nb_toks;
                 var goal_starters;
                 var sc_states_33;
                 var BgL_sc_nbzd2confs_34zd2;
                 var BgL_sc_nbzd2toks_35zd2;
                 var sc_toks_36;
                 var falseHead1128;
                 var sc_names_37;
                 var sc_steps_38;
                 var sc_predictors_39;
                 var sc_enders_40;
                 var sc_starters_41;
                 var sc_nts_42;
                 var lexer;
                 var sc_ind_43;
                 var make_states;
                 var BgL_sc_confzd2setzd2getza2_44za2;
                 var conf_set_merge_new_bang;
                 var conf_set_adjoin;
                 var BgL_sc_confzd2setzd2adjoinza2_45za2;
                 var BgL_sc_confzd2setzd2adjoinza2za2_46z00;
                 var conf_set_union;
                 var forw;
                 var is_parsed;
                 var deriv_trees;
                 var BgL_sc_derivzd2treesza2_47z70;
                 var nb_deriv_trees;
                 var BgL_sc_nbzd2derivzd2treesza2_48za2;
                 {
                     sc_ind_43 = function(nt, sc_nts_49) {
                         var i;
                         {
                             (i = ((sc_nts_49.length)-(1)));
                             while (true) {
                                 if ((i>=(0)))
                                     if ((sc_isEqual((sc_nts_49[i]), nt)))
                                         return i;
                                     else
                                         (--i);
                                 else
                                     return false;
                             }
                         }
                     };
                     make_states = function(BgL_sc_nbzd2toks_50zd2, BgL_sc_nbzd2confs_51zd2) {
                         var v;
                         var i;
                         var sc_states_52;
                         {
                             (sc_states_52 = (sc_makeVector((BgL_sc_nbzd2toks_50zd2+(1)), false)));
                             (i = BgL_sc_nbzd2toks_50zd2);
                             while ((i>=(0))) {
                                 {
                                     (v = (sc_makeVector((BgL_sc_nbzd2confs_51zd2+(1)), false)));
                                     (v[(0)] = (-1));
                                     (sc_states_52[i] = v);
                                     (--i);
                                 }
                             }
                             return sc_states_52;
                         }
                     };
                     BgL_sc_confzd2setzd2getza2_44za2 = function(state, BgL_sc_statezd2num_53zd2, sc_conf_54) {
                         var conf_set;
                         var BgL_sc_confzd2set_55zd2;
                         return ((BgL_sc_confzd2set_55zd2 = (state[(sc_conf_54+(1))])), ((BgL_sc_confzd2set_55zd2!== false)?BgL_sc_confzd2set_55zd2:((conf_set = (sc_makeVector((BgL_sc_statezd2num_53zd2+(6)), false))), (conf_set[(1)] = (-3)), (conf_set[(2)] = (-1)), (conf_set[(3)] = (-1)), (conf_set[(4)] = (-1)), (state[(sc_conf_54+(1))] = conf_set), conf_set)));
                     };
                     conf_set_merge_new_bang = function(conf_set) {
                         return ((conf_set[((conf_set[(1)])+(5))] = (conf_set[(4)])), (conf_set[(1)] = (conf_set[(3)])), (conf_set[(3)] = (-1)), (conf_set[(4)] = (-1)));
                     };
                     conf_set_adjoin = function(state, conf_set, sc_conf_56, i) {
                         var tail;
                         return ((tail = (conf_set[(3)])), (conf_set[(i+(5))] = (-1)), (conf_set[(tail+(5))] = i), (conf_set[(3)] = i), ((tail<(0))?((conf_set[(0)] = (state[(0)])), (state[(0)] = sc_conf_56)):undefined));
                     };
                     BgL_sc_confzd2setzd2adjoinza2_45za2 = function(sc_states_57, BgL_sc_statezd2num_58zd2, l, i) {
                         var conf_set;
                         var sc_conf_59;
                         var l1;
                         var state;
                         {
                             (state = (sc_states_57[BgL_sc_statezd2num_58zd2]));
                             (l1 = l);
                             while ((l1 instanceof sc_Pair)) {
                                 {
                                     (sc_conf_59 = (l1.car));
                                     (conf_set = (BgL_sc_confzd2setzd2getza2_44za2(state, BgL_sc_statezd2num_58zd2, sc_conf_59)));
                                     if (((conf_set[(i+(5))])=== false))
                                         {
                                             (conf_set_adjoin(state, conf_set, sc_conf_59, i));
                                             (l1 = (l1.cdr));
                                         }
                                     else
                                         (l1 = (l1.cdr));
                                 }
                             }
                             return undefined;
                         }
                     };
                     BgL_sc_confzd2setzd2adjoinza2za2_46z00 = function(sc_states_60, BgL_sc_statesza2_61za2, BgL_sc_statezd2num_62zd2, sc_conf_63, i) {
                         var BgL_sc_confzd2setza2_64z70;
                         var BgL_sc_stateza2_65za2;
                         var conf_set;
                         var state;
                         return ((state = (sc_states_60[BgL_sc_statezd2num_62zd2])), ((((conf_set = (state[(sc_conf_63+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false)?((BgL_sc_stateza2_65za2 = (BgL_sc_statesza2_61za2[BgL_sc_statezd2num_62zd2])), (BgL_sc_confzd2setza2_64z70 = (BgL_sc_confzd2setzd2getza2_44za2(BgL_sc_stateza2_65za2, BgL_sc_statezd2num_62zd2, sc_conf_63))), (((BgL_sc_confzd2setza2_64z70[(i+(5))])=== false)?(conf_set_adjoin(BgL_sc_stateza2_65za2, BgL_sc_confzd2setza2_64z70, sc_conf_63, i)):undefined), true):false));
                     };
                     conf_set_union = function(state, conf_set, sc_conf_66, other_set) {
                         var i;
                         {
                             (i = (other_set[(2)]));
                             while ((i>=(0))) {
                                 if (((conf_set[(i+(5))])=== false))
                                     {
                                         (conf_set_adjoin(state, conf_set, sc_conf_66, i));
                                         (i = (other_set[(i+(5))]));
                                     }
                                 else
                                     (i = (other_set[(i+(5))]));
                             }
                             return undefined;
                         }
                     };
                     forw = function(sc_states_67, BgL_sc_statezd2num_68zd2, sc_starters_69, sc_enders_70, sc_predictors_71, sc_steps_72, sc_nts_73) {
                         var next_set;
                         var next;
                         var conf_set;
                         var ender;
                         var l;
                         var starter_set;
                         var starter;
                         var sc_l_74;
                         var sc_loop1_75;
                         var head;
                         var BgL_sc_confzd2set_76zd2;
                         var BgL_sc_statezd2num_77zd2;
                         var state;
                         var sc_states_78;
                         var preds;
                         var BgL_sc_confzd2set_79zd2;
                         var step;
                         var sc_conf_80;
                         var BgL_sc_nbzd2nts_81zd2;
                         var sc_state_82;
                         {
                             (sc_state_82 = (sc_states_67[BgL_sc_statezd2num_68zd2]));
                             (BgL_sc_nbzd2nts_81zd2 = (sc_nts_73.length));
                             while (true) {
                                 {
                                     (sc_conf_80 = (sc_state_82[(0)]));
                                     if ((sc_conf_80>=(0)))
                                         {
                                             (step = (sc_steps_72[sc_conf_80]));
                                             (BgL_sc_confzd2set_79zd2 = (sc_state_82[(sc_conf_80+(1))]));
                                             (head = (BgL_sc_confzd2set_79zd2[(4)]));
                                             (sc_state_82[(0)] = (BgL_sc_confzd2set_79zd2[(0)]));
                                             (conf_set_merge_new_bang(BgL_sc_confzd2set_79zd2));
                                             if ((step>=(0)))
                                                 {
                                                     (sc_l_74 = (sc_starters_69[step]));
                                                     while ((sc_l_74 instanceof sc_Pair)) {
                                                         {
                                                             (starter = (sc_l_74.car));
                                                             (starter_set = (BgL_sc_confzd2setzd2getza2_44za2(sc_state_82, BgL_sc_statezd2num_68zd2, starter)));
                                                             if (((starter_set[(BgL_sc_statezd2num_68zd2+(5))])=== false))
                                                                 {
                                                                     (conf_set_adjoin(sc_state_82, starter_set, starter, BgL_sc_statezd2num_68zd2));
                                                                     (sc_l_74 = (sc_l_74.cdr));
                                                                 }
                                                             else
                                                                 (sc_l_74 = (sc_l_74.cdr));
                                                         }
                                                     }
                                                     (l = (sc_enders_70[step]));
                                                     while ((l instanceof sc_Pair)) {
                                                         {
                                                             (ender = (l.car));
                                                             if ((((conf_set = (sc_state_82[(ender+(1))])), ((conf_set!== false)?(conf_set[(BgL_sc_statezd2num_68zd2+(5))]):false))!== false))
                                                                 {
                                                                     (next = (sc_conf_80+(1)));
                                                                     (next_set = (BgL_sc_confzd2setzd2getza2_44za2(sc_state_82, BgL_sc_statezd2num_68zd2, next)));
                                                                     (conf_set_union(sc_state_82, next_set, next, BgL_sc_confzd2set_79zd2));
                                                                     (l = (l.cdr));
                                                                 }
                                                             else
                                                                 (l = (l.cdr));
                                                         }
                                                     }
                                                 }
                                             else
                                                 {
                                                     (preds = (sc_predictors_71[(step+BgL_sc_nbzd2nts_81zd2)]));
                                                     (sc_states_78 = sc_states_67);
                                                     (state = sc_state_82);
                                                     (BgL_sc_statezd2num_77zd2 = BgL_sc_statezd2num_68zd2);
                                                     (BgL_sc_confzd2set_76zd2 = BgL_sc_confzd2set_79zd2);
                                                     sc_loop1_75 = function(l) {
                                                         var sc_state_83;
                                                         var BgL_sc_nextzd2set_84zd2;
                                                         var sc_next_85;
                                                         var pred_set;
                                                         var i;
                                                         var pred;
                                                         if ((l instanceof sc_Pair))
                                                             {
                                                                 (pred = (l.car));
                                                                 (i = head);
                                                                 while ((i>=(0))) {
                                                                     {
                                                                         (pred_set = ((sc_state_83 = (sc_states_78[i])), (sc_state_83[(pred+(1))])));
                                                                         if ((pred_set!== false))
                                                                             {
                                                                                 (sc_next_85 = (pred+(1)));
                                                                                 (BgL_sc_nextzd2set_84zd2 = (BgL_sc_confzd2setzd2getza2_44za2(state, BgL_sc_statezd2num_77zd2, sc_next_85)));
                                                                                 (conf_set_union(state, BgL_sc_nextzd2set_84zd2, sc_next_85, pred_set));
                                                                             }
                                                                         (i = (BgL_sc_confzd2set_76zd2[(i+(5))]));
                                                                     }
                                                                 }
                                                                 return (sc_loop1_75((l.cdr)));
                                                             }
                                                         else
                                                             return undefined;
                                                     };
                                                     (sc_loop1_75(preds));
                                                 }
                                         }
                                     else
                                         return undefined;
                                 }
                             }
                         }
                     };
                     is_parsed = function(nt, i, j, sc_nts_86, sc_enders_87, sc_states_88) {
                         var conf_set;
                         var state;
                         var sc_conf_89;
                         var l;
                         var BgL_sc_ntza2_90za2;
                         {
                             (BgL_sc_ntza2_90za2 = (sc_ind_43(nt, sc_nts_86)));
                             if ((BgL_sc_ntza2_90za2!== false))
                                 {
                                     (sc_nts_86.length);
                                     (l = (sc_enders_87[BgL_sc_ntza2_90za2]));
                                     while (true) {
                                         if ((l instanceof sc_Pair))
                                             {
                                                 (sc_conf_89 = (l.car));
                                                 if ((((state = (sc_states_88[j])), (conf_set = (state[(sc_conf_89+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
                                                     return true;
                                                 else
                                                     (l = (l.cdr));
                                             }
                                         else
                                             return false;
                                     }
                                 }
                             else
                                 return false;
                         }
                     };
                     deriv_trees = function(sc_conf_91, i, j, sc_enders_92, sc_steps_93, sc_names_94, sc_toks_95, sc_states_96, BgL_sc_nbzd2nts_97zd2) {
                         var sc_loop1_98;
                         var prev;
                         var name;
                         return ((name = (sc_names_94[sc_conf_91])), ((name!== false)?((sc_conf_91<BgL_sc_nbzd2nts_97zd2)?(sc_list((sc_list(name, ((sc_toks_95[i]).car))))):(sc_list((sc_list(name))))):((prev = (sc_conf_91-(1))), (sc_loop1_98 = function(l1, l2) {
                             var loop2;
                             var ender_set;
                             var state;
                             var ender;
                             var l1;
                             var l2;
                             while (true) {
                                 if ((l1 instanceof sc_Pair))
                                     {
                                         (ender = (l1.car));
                                         (ender_set = ((state = (sc_states_96[j])), (state[(ender+(1))])));
                                         if ((ender_set!== false))
                                             {
                                                 loop2 = function(k, l2) {
                                                     var loop3;
                                                     var ender_trees;
                                                     var prev_trees;
                                                     var conf_set;
                                                     var sc_state_99;
                                                     var k;
                                                     var l2;
                                                     while (true) {
                                                         if ((k>=(0)))
                                                             if (((k>=i)&&(((sc_state_99 = (sc_states_96[k])), (conf_set = (sc_state_99[(prev+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false)))
                                                                 {
                                                                     (prev_trees = (deriv_trees(prev, i, k, sc_enders_92, sc_steps_93, sc_names_94, sc_toks_95, sc_states_96, BgL_sc_nbzd2nts_97zd2)));
                                                                     (ender_trees = (deriv_trees(ender, k, j, sc_enders_92, sc_steps_93, sc_names_94, sc_toks_95, sc_states_96, BgL_sc_nbzd2nts_97zd2)));
                                                                     loop3 = function(l3, l2) {
                                                                         var l4;
                                                                         var sc_l2_100;
                                                                         var ender_tree;
                                                                         if ((l3 instanceof sc_Pair))
                                                                             {
                                                                                 (ender_tree = (sc_list((l3.car))));
                                                                                 (l4 = prev_trees);
                                                                                 (sc_l2_100 = l2);
                                                                                 while ((l4 instanceof sc_Pair)) {
                                                                                     {
                                                                                         (sc_l2_100 = (new sc_Pair((sc_append((l4.car), ender_tree)), sc_l2_100)));
                                                                                         (l4 = (l4.cdr));
                                                                                     }
                                                                                 }
                                                                                 return (loop3((l3.cdr), sc_l2_100));
                                                                             }
                                                                         else
                                                                             return (loop2((ender_set[(k+(5))]), l2));
                                                                     };
                                                                     return (loop3(ender_trees, l2));
                                                                 }
                                                             else
                                                                 (k = (ender_set[(k+(5))]));
                                                         else
                                                             return (sc_loop1_98((l1.cdr), l2));
                                                     }
                                                 };
                                                 return (loop2((ender_set[(2)]), l2));
                                             }
                                         else
                                             (l1 = (l1.cdr));
                                     }
                                 else
                                     return l2;
                             }
                         }), (sc_loop1_98((sc_enders_92[(sc_steps_93[prev])]), null)))));
                     };
                     BgL_sc_derivzd2treesza2_47z70 = function(nt, i, j, sc_nts_101, sc_enders_102, sc_steps_103, sc_names_104, sc_toks_105, sc_states_106) {
                         var conf_set;
                         var state;
                         var sc_conf_107;
                         var l;
                         var trees;
                         var BgL_sc_nbzd2nts_108zd2;
                         var BgL_sc_ntza2_109za2;
                         {
                             (BgL_sc_ntza2_109za2 = (sc_ind_43(nt, sc_nts_101)));
                             if ((BgL_sc_ntza2_109za2!== false))
                                 {
                                     (BgL_sc_nbzd2nts_108zd2 = (sc_nts_101.length));
                                     (l = (sc_enders_102[BgL_sc_ntza2_109za2]));
                                     (trees = null);
                                     while ((l instanceof sc_Pair)) {
                                         {
                                             (sc_conf_107 = (l.car));
                                             if ((((state = (sc_states_106[j])), (conf_set = (state[(sc_conf_107+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
                                                 {
                                                     (l = (l.cdr));
                                                     (trees = (sc_append((deriv_trees(sc_conf_107, i, j, sc_enders_102, sc_steps_103, sc_names_104, sc_toks_105, sc_states_106, BgL_sc_nbzd2nts_108zd2)), trees)));
                                                 }
                                             else
                                                 (l = (l.cdr));
                                         }
                                     }
                                     return trees;
                                 }
                             else
                                 return false;
                         }
                     };
                     nb_deriv_trees = function(sc_conf_110, i, j, sc_enders_111, sc_steps_112, sc_toks_113, sc_states_114, BgL_sc_nbzd2nts_115zd2) {
                         var sc_loop1_116;
                         var tmp1124;
                         var prev;
                         return ((prev = (sc_conf_110-(1))), ((((tmp1124 = (sc_conf_110<BgL_sc_nbzd2nts_115zd2)), ((tmp1124!== false)?tmp1124:((sc_steps_112[prev])<(0))))!== false)?(1):((sc_loop1_116 = function(l, sc_n_118) {
                             var nb_ender_trees;
                             var nb_prev_trees;
                             var conf_set;
                             var state;
                             var k;
                             var n;
                             var ender_set;
                             var sc_state_117;
                             var ender;
                             var l;
                             var sc_n_118;
                             while (true) {
                                 if ((l instanceof sc_Pair))
                                     {
                                         (ender = (l.car));
                                         (ender_set = ((sc_state_117 = (sc_states_114[j])), (sc_state_117[(ender+(1))])));
                                         if ((ender_set!== false))
                                             {
                                                 (k = (ender_set[(2)]));
                                                 (n = sc_n_118);
                                                 while ((k>=(0))) {
                                                     if (((k>=i)&&(((state = (sc_states_114[k])), (conf_set = (state[(prev+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false)))
                                                         {
                                                             (nb_prev_trees = (nb_deriv_trees(prev, i, k, sc_enders_111, sc_steps_112, sc_toks_113, sc_states_114, BgL_sc_nbzd2nts_115zd2)));
                                                             (nb_ender_trees = (nb_deriv_trees(ender, k, j, sc_enders_111, sc_steps_112, sc_toks_113, sc_states_114, BgL_sc_nbzd2nts_115zd2)));
                                                             (k = (ender_set[(k+(5))]));
                                                             (n +=(nb_prev_trees*nb_ender_trees));
                                                         }
                                                     else
                                                         (k = (ender_set[(k+(5))]));
                                                 }
                                                 return (sc_loop1_116((l.cdr), n));
                                             }
                                         else
                                             (l = (l.cdr));
                                     }
                                 else
                                     return sc_n_118;
                             }
                         }), (sc_loop1_116((sc_enders_111[(sc_steps_112[prev])]), (0))))));
                     };
                     BgL_sc_nbzd2derivzd2treesza2_48za2 = function(nt, i, j, sc_nts_119, sc_enders_120, sc_steps_121, sc_toks_122, sc_states_123) {
                         var conf_set;
                         var state;
                         var sc_conf_124;
                         var l;
                         var nb_trees;
                         var BgL_sc_nbzd2nts_125zd2;
                         var BgL_sc_ntza2_126za2;
                         {
                             (BgL_sc_ntza2_126za2 = (sc_ind_43(nt, sc_nts_119)));
                             if ((BgL_sc_ntza2_126za2!== false))
                                 {
                                     (BgL_sc_nbzd2nts_125zd2 = (sc_nts_119.length));
                                     (l = (sc_enders_120[BgL_sc_ntza2_126za2]));
                                     (nb_trees = (0));
                                     while ((l instanceof sc_Pair)) {
                                         {
                                             (sc_conf_124 = (l.car));
                                             if ((((state = (sc_states_123[j])), (conf_set = (state[(sc_conf_124+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
                                                 {
                                                     (l = (l.cdr));
                                                     (nb_trees = ((nb_deriv_trees(sc_conf_124, i, j, sc_enders_120, sc_steps_121, sc_toks_122, sc_states_123, BgL_sc_nbzd2nts_125zd2))+nb_trees));
                                                 }
                                             else
                                                 (l = (l.cdr));
                                         }
                                     }
                                     return nb_trees;
                                 }
                             else
                                 return false;
                         }
                     };
                     (lexer = (parser_descr[(0)]));
                     (sc_nts_42 = (parser_descr[(1)]));
                     (sc_starters_41 = (parser_descr[(2)]));
                     (sc_enders_40 = (parser_descr[(3)]));
                     (sc_predictors_39 = (parser_descr[(4)]));
                     (sc_steps_38 = (parser_descr[(5)]));
                     (sc_names_37 = (parser_descr[(6)]));
                     (falseHead1128 = (new sc_Pair(null, null)));
                     (L1125 = (lexer(input)));
                     (tail1129 = falseHead1128);
                     while (!(L1125 === null)) {
                         {
                             (tok = (L1125.car));
                             (l1 = (tok.cdr));
                             (l2 = null);
                             while ((l1 instanceof sc_Pair)) {
                                 {
                                     (sc_i_29 = (sc_ind_43((l1.car), sc_nts_42)));
                                     if ((sc_i_29!== false))
                                         {
                                             (l1 = (l1.cdr));
                                             (l2 = (new sc_Pair(sc_i_29, l2)));
                                         }
                                     else
                                         (l1 = (l1.cdr));
                                 }
                             }
                             (sc_optrOpnd_22 = (new sc_Pair((tok.car), (sc_reverse(l2)))));
                             (sc_optrOpnd_21 = (new sc_Pair(sc_optrOpnd_22, null)));
                             (tail1129.cdr = sc_optrOpnd_21);
                             (tail1129 = (tail1129.cdr));
                             (L1125 = (L1125.cdr));
                         }
                     }
                     (sc_optrOpnd_20 = (falseHead1128.cdr));
                     (sc_toks_36 = (sc_list2vector(sc_optrOpnd_20)));
                     (BgL_sc_nbzd2toks_35zd2 = (sc_toks_36.length));
                     (BgL_sc_nbzd2confs_34zd2 = (sc_steps_38.length));
                     (sc_states_33 = (make_states(BgL_sc_nbzd2toks_35zd2, BgL_sc_nbzd2confs_34zd2)));
                     (goal_starters = (sc_starters_41[(0)]));
                     (BgL_sc_confzd2setzd2adjoinza2_45za2(sc_states_33, (0), goal_starters, (0)));
                     (forw(sc_states_33, (0), sc_starters_41, sc_enders_40, sc_predictors_39, sc_steps_38, sc_nts_42));
                     (sc_i_28 = (0));
                     while ((sc_i_28<BgL_sc_nbzd2toks_35zd2)) {
                         {
                             (tok_nts = ((sc_toks_36[sc_i_28]).cdr));
                             (BgL_sc_confzd2setzd2adjoinza2_45za2(sc_states_33, (sc_i_28+(1)), tok_nts, sc_i_28));
                             (forw(sc_states_33, (sc_i_28+(1)), sc_starters_41, sc_enders_40, sc_predictors_39, sc_steps_38, sc_nts_42));
                             (++sc_i_28);
                         }
                     }
                     (nb_toks = (sc_toks_36.length));
                     (BgL_sc_nbzd2confs_32zd2 = (sc_steps_38.length));
                     (BgL_sc_nbzd2nts_31zd2 = (sc_nts_42.length));
                     (BgL_sc_statesza2_30za2 = (make_states(nb_toks, BgL_sc_nbzd2confs_32zd2)));
                     (goal_enders = (sc_enders_40[(0)]));
                     (l = goal_enders);
                     while ((l instanceof sc_Pair)) {
                         {
                             (conf = (l.car));
                             (BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_33, BgL_sc_statesza2_30za2, nb_toks, conf, (0)));
                             (l = (l.cdr));
                         }
                     }
                     (i = nb_toks);
                     while ((i>=(0))) {
                         {
                             (states = sc_states_33);
                             (BgL_sc_statesza2_27za2 = BgL_sc_statesza2_30za2);
                             (state_num = i);
                             (sc_enders_26 = sc_enders_40);
                             (sc_steps_25 = sc_steps_38);
                             (BgL_sc_nbzd2nts_24zd2 = BgL_sc_nbzd2nts_31zd2);
                             (toks = sc_toks_36);
                             (BgL_sc_stateza2_23za2 = (BgL_sc_statesza2_30za2[i]));
                             loop1 = function() {
                                 var sc_loop1_127;
                                 var prev;
                                 var BgL_sc_statesza2_128za2;
                                 var sc_states_129;
                                 var j;
                                 var i;
                                 var sc_i_130;
                                 var head;
                                 var conf_set;
                                 var sc_conf_131;
                                 {
                                     (sc_conf_131 = (BgL_sc_stateza2_23za2[(0)]));
                                     if ((sc_conf_131>=(0)))
                                         {
                                             (conf_set = (BgL_sc_stateza2_23za2[(sc_conf_131+(1))]));
                                             (head = (conf_set[(4)]));
                                             (BgL_sc_stateza2_23za2[(0)] = (conf_set[(0)]));
                                             (conf_set_merge_new_bang(conf_set));
                                             (sc_i_130 = head);
                                             while ((sc_i_130>=(0))) {
                                                 {
                                                     (i = sc_i_130);
                                                     (j = state_num);
                                                     (sc_states_129 = states);
                                                     (BgL_sc_statesza2_128za2 = BgL_sc_statesza2_27za2);
                                                     (prev = (sc_conf_131-(1)));
                                                     if (((sc_conf_131>=BgL_sc_nbzd2nts_24zd2)&&((sc_steps_25[prev])>=(0))))
                                                         {
                                                             sc_loop1_127 = function(l) {
                                                                 var k;
                                                                 var ender_set;
                                                                 var state;
                                                                 var ender;
                                                                 var l;
                                                                 while (true) {
                                                                     if ((l instanceof sc_Pair))
                                                                         {
                                                                             (ender = (l.car));
                                                                             (ender_set = ((state = (sc_states_129[j])), (state[(ender+(1))])));
                                                                             if ((ender_set!== false))
                                                                                 {
                                                                                     (k = (ender_set[(2)]));
                                                                                     while ((k>=(0))) {
                                                                                         {
                                                                                             if ((k>=i))
                                                                                                 if (((BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_129, BgL_sc_statesza2_128za2, k, prev, i))!== false))
                                                                                                     (BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_129, BgL_sc_statesza2_128za2, j, ender, k));
                                                                                             (k = (ender_set[(k+(5))]));
                                                                                         }
                                                                                     }
                                                                                     return (sc_loop1_127((l.cdr)));
                                                                                 }
                                                                             else
                                                                                 (l = (l.cdr));
                                                                         }
                                                                     else
                                                                         return undefined;
                                                                 }
                                                             };
                                                             (sc_loop1_127((sc_enders_26[(sc_steps_25[prev])])));
                                                         }
                                                     (sc_i_130 = (conf_set[(sc_i_130+(5))]));
                                                 }
                                             }
                                             return (loop1());
                                         }
                                     else
                                         return undefined;
                                 }
                             };
                             (loop1());
                             (--i);
                         }
                     }
                     (optrOpnd = BgL_sc_statesza2_30za2);
                     return [sc_nts_42, sc_starters_41, sc_enders_40, sc_predictors_39, sc_steps_38, sc_names_37, sc_toks_36, optrOpnd, is_parsed, BgL_sc_derivzd2treesza2_47z70, BgL_sc_nbzd2derivzd2treesza2_48za2];
                 }
             };
         }
     };
     BgL_parsezd2ze3parsedzf3zc2 = function(parse, nt, i, j) {
         var is_parsed;
         var states;
         var enders;
         var nts;
         return ((nts = (parse[(0)])), (enders = (parse[(2)])), (states = (parse[(7)])), (is_parsed = (parse[(8)])), (is_parsed(nt, i, j, nts, enders, states)));
     };
     BgL_parsezd2ze3treesz31 = function(parse, nt, i, j) {
         var BgL_sc_derivzd2treesza2_132z70;
         var states;
         var toks;
         var names;
         var steps;
         var enders;
         var nts;
         return ((nts = (parse[(0)])), (enders = (parse[(2)])), (steps = (parse[(4)])), (names = (parse[(5)])), (toks = (parse[(6)])), (states = (parse[(7)])), (BgL_sc_derivzd2treesza2_132z70 = (parse[(9)])), (BgL_sc_derivzd2treesza2_132z70(nt, i, j, nts, enders, steps, names, toks, states)));
     };
     BgL_parsezd2ze3nbzd2treesze3 = function(parse, nt, i, j) {
         var BgL_sc_nbzd2derivzd2treesza2_133za2;
         var states;
         var toks;
         var steps;
         var enders;
         var nts;
         return ((nts = (parse[(0)])), (enders = (parse[(2)])), (steps = (parse[(4)])), (toks = (parse[(6)])), (states = (parse[(7)])), (BgL_sc_nbzd2derivzd2treesza2_133za2 = (parse[(10)])), (BgL_sc_nbzd2derivzd2treesza2_133za2(nt, i, j, nts, enders, steps, toks, states)));
     };
     test = function(k) {
         var x;
         var p;
         return ((p = (BgL_makezd2parserzd2(const_earley, function(l) {
             var sc_x_134;
             var tail1134;
             var L1130;
             var falseHead1133;
             {
                 (falseHead1133 = (new sc_Pair(null, null)));
                 (tail1134 = falseHead1133);
                 (L1130 = l);
                 while (!(L1130 === null)) {
                     {
                         (tail1134.cdr = (new sc_Pair(((sc_x_134 = (L1130.car)), (sc_list(sc_x_134, sc_x_134))), null)));
                         (tail1134 = (tail1134.cdr));
                         (L1130 = (L1130.cdr));
                     }
                 }
                 return (falseHead1133.cdr);
             }
         }))), (x = (p((sc_vector2list((sc_makeVector(k, "\u1E9Ca"))))))), (sc_length((BgL_parsezd2ze3treesz31(x, "\u1E9Cs", (0), k)))));
     };
     BgL_earleyzd2benchmarkzd2 = function() {
         var args = null;
         for (var sc_tmp = arguments.length - 1; sc_tmp >= 0; sc_tmp--) {
             args = sc_cons(arguments[sc_tmp], args);
         }
         var k;
         return ((k = ((args === null)?(7):(args.car))), (BgL_runzd2benchmarkzd2("earley", (1), function() {
             return (test(k));
         }, function(result) {
             return ((sc_display(result)), (sc_newline()), result == 132);
         })));
     };
 }
 /************* END OF GENERATED CODE *************/
 // Invoke this function to run a benchmark.
 // The first argument is a string identifying the benchmark.
 // The second argument is the number of times to run the benchmark.
 // The third argument is a function that runs the benchmark.
 // The fourth argument is a unary function that warns if the result
 // returned by the benchmark is incorrect.
 //
 // Example:
 // RunBenchmark("new Array()",
 //              1,
 //              function () { new Array(1000000); }
 //              function (v) {
 //                return (v instanceof Array) && (v.length == 1000000);
 //              });
 SC_DEFAULT_OUT = new sc_GenericOutputPort(function(s) {});
 SC_ERROR_OUT = SC_DEFAULT_OUT;
 function RunBenchmark(name, count, run, warn) {
   for (var n = 0; n < count; ++n) {
     result = run();
     if (!warn(result)) {
       throw new Error("Earley or Boyer did incorrect number of rewrites");
     }
   }
 }
 var BgL_runzd2benchmarkzd2 = RunBenchmark;