tor-browser

earley-boyer.js (195234B)

---

// 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", true,  false, 2500, function () { BgL_earleyzd2benchmarkzd2(); }),
 new Benchmark("Boyer", true, false, 200, 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, "&");
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;
{
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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 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       var args = null;
       for (var sc_tmp = arguments.length - 1; sc_tmp >= 0; sc_tmp--) {
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       var n;
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               switch (n) {
               case (0):
                   return (rewrites===(95024));
                   break;
               case (1):
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                   break;
               case (2):
                   return (rewrites===(1813975));
                   break;
               case (3):
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                   break;
               case (4):
                   return (rewrites===(16445406));
                   break;
               case (5):
                   return (rewrites===(51507739));
                   break;
               default:
                   return true;
                   break;
               }
           else
               return false;
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   };
   BgL_setupzd2boyerzd2 = function() {
       return true;
   };
   BgL_testzd2boyerzd2 = function() {
       return true;
   };
   translate_term_nboyer = function(term) {
       var lst;
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   translate_args_nboyer = function(lst) {
       var sc_lst_5;
       var term;
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   };
   untranslate_term_nboyer = function(term) {
       var optrOpnd;
       var tail1131;
       var L1127;
       var falseHead1130;
       var symbol_record;
       if (!(term instanceof sc_Pair))
           return term;
       else
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               (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;