Adding version 6 of the v8 benchmark suite to chrome/test/data.

chrome/test/data/v8_benchmark_v6/earley-boyer.js

+// This file is automatically generated by scheme2js, except for the
+// benchmark harness code at the beginning and end of the file.
+
+var EarleyBoyer = new BenchmarkSuite('EarleyBoyer', 666463, [
+  new Benchmark("Earley", function () { BgL_earleyzd2benchmarkzd2(); }),
+  new Benchmark("Boyer", function () { BgL_nboyerzd2benchmarkzd2(); })
+]);
+
+
+/************* GENERATED FILE - DO NOT EDIT *************/
+/************* GENERATED FILE - DO NOT EDIT *************/
+/************* GENERATED FILE - DO NOT EDIT *************/
+/************* GENERATED FILE - DO NOT EDIT *************/
+/************* GENERATED FILE - DO NOT EDIT *************/
+/************* GENERATED FILE - DO NOT EDIT *************/
+/************* GENERATED FILE - DO NOT EDIT *************/
+/************* GENERATED FILE - DO NOT EDIT *************/
+/*
+ * To use write/prints/... the default-output port has to be set first.
+ * Simply setting SC_DEFAULT_OUT and SC_ERROR_OUT to the desired values
+ * should do the trick.
+ * In the following example the std-out and error-port are redirected to
+ * a DIV.
+function initRuntime() {
+    function escapeHTML(s) {
+        var tmp = s;
+        tmp = tmp.replace(/&/g, "&");
+        tmp = tmp.replace(/</g, "&lt;");
+        tmp = tmp.replace(/>/g, "&gt;");
+        tmp = tmp.replace(/ /g, "&nbsp;");
+        tmp = tmp.replace(/\n/g, "<br />");
+        tmp = tmp.replace(/\t/g, "&nbsp;&nbsp;&nbsp;&nbsp");
+        return tmp;
+        
+    }
+
+    document.write("<div id='stdout'></div>");
+    SC_DEFAULT_OUT = new sc_GenericOutputPort(
+        function(s) {
+            var stdout = document.getElementById('stdout');
+            stdout.innerHTML = stdout.innerHTML + escapeHTML(s);
+        });
+    SC_ERROR_OUT = SC_DEFAULT_OUT;
+}
+*/
+
+
+function sc_print_debug() {
+    sc_print.apply(null, arguments);
+}
+/*** META ((export *js*)) */
+var sc_JS_GLOBALS = this;
+
+var __sc_LINE=-1;
+var __sc_FILE="";
+
+/*** META ((export #t)) */
+function sc_alert() {
+   var len = arguments.length;
+   var s = "";
+   var i;
+
+   for( i = 0; i < len; i++ ) {
+       s += sc_toDisplayString(arguments[ i ]);
+   }
+
+   return alert( s );
+}
+
+/*** META ((export #t)) */
+function sc_typeof( x ) {
+   return typeof x;
+}
+
+/*** META ((export #t)) */
+function sc_error() {
+    var a = [sc_jsstring2symbol("*error*")];
+    for (var i = 0; i < arguments.length; i++) {
+        a[i+1] = arguments[i];
+    }
+    throw a;
+}
+
+/*** META ((export #t)
+           (peephole (prefix "throw ")))
+*/
+function sc_raise(obj) {
+    throw obj;
+}
+
+/*** META ((export with-handler-lambda)) */
+function sc_withHandlerLambda(handler, body) {
+    try {
+        return body();
+    } catch(e) {
+        if (!e._internalException)
+            return handler(e);
+        else
+            throw e;
+    }
+}
+
+var sc_properties = new Object();
+
+/*** META ((export #t)) */
+function sc_putpropBang(sym, key, val) {
+    var ht = sc_properties[sym];
+    if (!ht) {
+        ht = new Object();
+        sc_properties[sym] = ht;
+    }
+    ht[key] = val;
+}
+
+/*** META ((export #t)) */
+function sc_getprop(sym, key) {
+    var ht = sc_properties[sym];
+    if (ht) {
+        if (key in ht)
+            return ht[key];
+        else
+            return false;
+    } else
+        return false;
+}
+
+/*** META ((export #t)) */
+function sc_rempropBang(sym, key) {
+    var ht = sc_properties[sym];
+    if (ht)
+        delete ht[key];
+}
+
+/*** META ((export #t)) */
+function sc_any2String(o) {
+    return jsstring2string(sc_toDisplayString(o));
+}    
+
+/*** META ((export #t)
+           (peephole (infix 2 2 "==="))
+           (type bool))
+*/
+function sc_isEqv(o1, o2) {
+    return (o1 === o2);
+}
+
+/*** META ((export #t)
+           (peephole (infix 2 2 "==="))
+           (type bool))
+*/
+function sc_isEq(o1, o2) {
+    return (o1 === o2);
+}
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isNumber(n) {
+    return (typeof n === "number");
+}
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isComplex(n) {
+    return sc_isNumber(n);
+}
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isReal(n) {
+    return sc_isNumber(n);
+}
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isRational(n) {
+    return sc_isReal(n);
+}
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isInteger(n) {
+    return (parseInt(n) === n);
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix ", false")))
+*/
+// we don't have exact numbers...
+function sc_isExact(n) {
+    return false;
+}
+
+/*** META ((export #t)
+           (peephole (postfix ", true"))
+           (type bool))
+*/
+function sc_isInexact(n) {
+    return true;
+}
+
+/*** META ((export = =fx =fl)
+           (type bool)
+           (peephole (infix 2 2 "===")))
+*/
+function sc_equal(x) {
+    for (var i = 1; i < arguments.length; i++)
+        if (x !== arguments[i])
+            return false;
+    return true;
+}
+
+/*** META ((export < <fx <fl)
+           (type bool)
+           (peephole (infix 2 2 "<")))
+*/
+function sc_less(x) {
+    for (var i = 1; i < arguments.length; i++) {
+        if (x >= arguments[i])
+            return false;
+        x = arguments[i];
+    }
+    return true;
+}
+
+/*** META ((export > >fx >fl)
+           (type bool)
+           (peephole (infix 2 2 ">")))
+*/
+function sc_greater(x, y) {
+    for (var i = 1; i < arguments.length; i++) {
+        if (x <= arguments[i])
+            return false;
+        x = arguments[i];
+    }
+    return true;
+}
+
+/*** META ((export <= <=fx <=fl)
+           (type bool)
+           (peephole (infix 2 2 "<=")))
+*/
+function sc_lessEqual(x, y) {
+    for (var i = 1; i < arguments.length; i++) {
+        if (x > arguments[i])
+            return false;
+        x = arguments[i];
+    }
+    return true;
+}
+
+/*** META ((export >= >=fl >=fx)
+           (type bool)
+           (peephole (infix 2 2 ">=")))
+*/
+function sc_greaterEqual(x, y) {
+    for (var i = 1; i < arguments.length; i++) {
+        if (x < arguments[i])
+            return false;
+        x = arguments[i];
+    }
+    return true;
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix "=== 0")))
+*/
+function sc_isZero(x) {
+    return (x === 0);
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix "> 0")))
+*/
+function sc_isPositive(x) {
+    return (x > 0);
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix "< 0")))
+*/
+function sc_isNegative(x) {
+    return (x < 0);
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix "%2===1")))
+*/
+function sc_isOdd(x) {
+    return (x % 2 === 1);
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix "%2===0")))
+*/
+function sc_isEven(x) {
+    return (x % 2 === 0);
+}
+
+/*** META ((export #t)) */
+var sc_max = Math.max;
+/*** META ((export #t)) */
+var sc_min = Math.min;
+
+/*** META ((export + +fx +fl)
+           (peephole (infix 0 #f "+" "0")))
+*/
+function sc_plus() {
+    var sum = 0;
+    for (var i = 0; i < arguments.length; i++)
+        sum += arguments[i];
+    return sum;
+}
+
+/*** META ((export * *fx *fl)
+           (peephole (infix 0 #f "*" "1")))
+*/
+function sc_multi() {
+    var product = 1;
+    for (var i = 0; i < arguments.length; i++)
+        product *= arguments[i];
+    return product;
+}
+
+/*** META ((export - -fx -fl)
+           (peephole (minus)))
+*/
+function sc_minus(x) {
+    if (arguments.length === 1)
+        return -x;
+    else {
+        var res = x;
+        for (var i = 1; i < arguments.length; i++)
+            res -= arguments[i];
+        return res;
+    }
+}
+
+/*** META ((export / /fl)
+           (peephole (div)))
+*/
+function sc_div(x) {
+    if (arguments.length === 1)
+        return 1/x;
+    else {
+        var res = x;
+        for (var i = 1; i < arguments.length; i++)
+            res /= arguments[i];
+        return res;
+    }
+}
+
+/*** META ((export #t)) */
+var sc_abs = Math.abs;
+
+/*** META ((export quotient /fx)
+           (peephole (hole 2 "parseInt(" x "/" y ")")))
+*/
+function sc_quotient(x, y) {
+    return parseInt(x / y);
+}
+
+/*** META ((export #t)
+           (peephole (infix 2 2 "%")))
+*/
+function sc_remainder(x, y) {
+    return x % y;
+}
+
+/*** META ((export #t)
+           (peephole (modulo)))
+*/
+function sc_modulo(x, y) {
+    var remainder = x % y;
+    // if they don't have the same sign
+    if ((remainder * y) < 0)
+        return remainder + y;
+    else
+        return remainder;
+}
+
+function sc_euclid_gcd(a, b) {
+    var temp;
+    if (a === 0) return b;
+    if (b === 0) return a;
+    if (a < 0) {a = -a;};
+    if (b < 0) {b = -b;};
+    if (b > a) {temp = a; a = b; b = temp;};
+    while (true) {
+        a %= b;
+        if(a === 0) {return b;};
+        b %= a;
+        if(b === 0) {return a;};
+    };
+    return b;
+}
+
+/*** META ((export #t)) */
+function sc_gcd() {
+    var gcd = 0;
+    for (var i = 0; i < arguments.length; i++)
+        gcd = sc_euclid_gcd(gcd, arguments[i]);
+    return gcd;
+}
+
+/*** META ((export #t)) */
+function sc_lcm() {
+    var lcm = 1;
+    for (var i = 0; i < arguments.length; i++) {
+        var f = Math.round(arguments[i] / sc_euclid_gcd(arguments[i], lcm));
+        lcm *= Math.abs(f);
+    }
+    return lcm;
+}
+
+// LIMITATION: numerator and denominator don't make sense in floating point world.
+//var SC_MAX_DECIMALS = 1000000
+//
+// function sc_numerator(x) {
+//     var rounded = Math.round(x * SC_MAX_DECIMALS);
+//     return Math.round(rounded / sc_euclid_gcd(rounded, SC_MAX_DECIMALS));
+// }
+
+// function sc_denominator(x) {
+//     var rounded = Math.round(x * SC_MAX_DECIMALS);
+//     return Math.round(SC_MAX_DECIMALS / sc_euclid_gcd(rounded, SC_MAX_DECIMALS));
+// }
+
+/*** META ((export #t)) */
+var sc_floor = Math.floor;
+/*** META ((export #t)) */
+var sc_ceiling = Math.ceil;
+/*** META ((export #t)) */
+var sc_truncate = parseInt;
+/*** META ((export #t)) */
+var sc_round = Math.round;
+
+// LIMITATION: sc_rationalize doesn't make sense in a floating point world.
+
+/*** META ((export #t)) */
+var sc_exp = Math.exp;
+/*** META ((export #t)) */
+var sc_log = Math.log;
+/*** META ((export #t)) */
+var sc_sin = Math.sin;
+/*** META ((export #t)) */
+var sc_cos = Math.cos;
+/*** META ((export #t)) */
+var sc_tan = Math.tan;
+/*** META ((export #t)) */
+var sc_asin = Math.asin;
+/*** META ((export #t)) */
+var sc_acos = Math.acos;
+/*** META ((export #t)) */
+var sc_atan = Math.atan;
+
+/*** META ((export #t)) */
+var sc_sqrt = Math.sqrt;
+/*** META ((export #t)) */
+var sc_expt = Math.pow;
+
+// LIMITATION: we don't have complex numbers.
+// LIMITATION: the following functions are hence not implemented.
+// LIMITATION: make-rectangular, make-polar, real-part, imag-part, magnitude, angle
+// LIMITATION: 2 argument atan
+
+/*** META ((export #t)
+           (peephole (id)))
+*/
+function sc_exact2inexact(x) {
+    return x;
+}
+
+/*** META ((export #t)
+           (peephole (id)))
+*/
+function sc_inexact2exact(x) {
+    return x;
+}
+
+function sc_number2jsstring(x, radix) {
+    if (radix)
+        return x.toString(radix);
+    else
+        return x.toString();
+}
+
+function sc_jsstring2number(s, radix) {
+    if (s === "") return false;
+
+    if (radix) {
+        var t = parseInt(s, radix);
+        if (!t && t !== 0) return false;
+        // verify that each char is in range. (parseInt ignores leading
+        // white and trailing chars)
+        var allowedChars = "01234567890abcdefghijklmnopqrstuvwxyz".substring(0, radix+1);
+        if ((new RegExp("^["+allowedChars+"]*$", "i")).test(s))
+            return t;
+        else return false;
+    } else {
+        var t = +s; // does not ignore trailing chars.
+        if (!t && t !== 0) return false;
+        // simply verify that first char is not whitespace.
+        var c = s.charAt(0);
+        // if +c is 0, but the char is not "0", then we have a whitespace.
+        if (+c === 0 && c !== "0") return false;
+        return t;
+    }
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (not)))
+*/
+function sc_not(b) {
+    return b === false;
+}
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isBoolean(b) {
+    return (b === true) || (b === false);
+}
+
+function sc_Pair(car, cdr) {
+    this.car = car;
+    this.cdr = cdr;
+}
+
+sc_Pair.prototype.toString = function() {
+    return sc_toDisplayString(this);
+};
+sc_Pair.prototype.sc_toWriteOrDisplayString = function(writeOrDisplay) {
+    var current = this;
+
+    var res = "(";
+
+    while(true) {
+        res += writeOrDisplay(current.car);
+        if (sc_isPair(current.cdr)) {
+            res += " ";
+            current = current.cdr;
+        } else if (current.cdr !== null) {
+            res += " . " + writeOrDisplay(current.cdr);
+            break;
+        } else // current.cdr == null
+            break;
+    }
+        
+    res += ")";
+
+    return res;
+};
+sc_Pair.prototype.sc_toDisplayString = function() {
+    return this.sc_toWriteOrDisplayString(sc_toDisplayString);
+};
+sc_Pair.prototype.sc_toWriteString = function() {
+    return this.sc_toWriteOrDisplayString(sc_toWriteString);
+};
+// sc_Pair.prototype.sc_toWriteCircleString in IO.js
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix " instanceof sc_Pair")))
+*/
+function sc_isPair(p) {
+    return (p instanceof sc_Pair);
+}
+
+function sc_isPairEqual(p1, p2, comp) {
+    return (comp(p1.car, p2.car) && comp(p1.cdr, p2.cdr));
+}
+
+/*** META ((export #t)
+           (peephole (hole 2 "new sc_Pair(" car ", " cdr ")")))
+*/
+function sc_cons(car, cdr) {
+    return new sc_Pair(car, cdr);
+}
+
+/*** META ((export cons*)) */
+function sc_consStar() {
+    var res = arguments[arguments.length - 1];
+    for (var i = arguments.length-2; i >= 0; i--)
+        res = new sc_Pair(arguments[i], res);
+    return res;
+}
+
+/*** META ((export #t)
+           (peephole (postfix ".car")))
+*/
+function sc_car(p) {
+    return p.car;
+}
+
+/*** META ((export #t)
+           (peephole (postfix ".cdr")))
+*/
+function sc_cdr(p) {
+    return p.cdr;
+}
+
+/*** META ((export #t)
+           (peephole (hole 2 p ".car = " val)))
+*/
+function sc_setCarBang(p, val) {
+    p.car = val;
+}
+
+/*** META ((export #t)
+           (peephole (hole 2 p ".cdr = " val)))
+*/
+function sc_setCdrBang(p, val) {
+    p.cdr = val;
+}
+
+/*** META ((export #t)
+           (peephole (postfix ".car.car")))
+*/
+function sc_caar(p) { return p.car.car; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.car")))
+*/
+function sc_cadr(p) { return p.cdr.car; }
+/*** META ((export #t)
+           (peephole (postfix ".car.cdr")))
+*/
+function sc_cdar(p) { return p.car.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.cdr")))
+*/
+function sc_cddr(p) { return p.cdr.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".car.car.car")))
+*/
+function sc_caaar(p) { return p.car.car.car; }
+/*** META ((export #t)
+           (peephole (postfix ".car.cdr.car")))
+*/
+function sc_cadar(p) { return p.car.cdr.car; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.car.car")))
+*/
+function sc_caadr(p) { return p.cdr.car.car; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.cdr.car")))
+*/
+function sc_caddr(p) { return p.cdr.cdr.car; }
+/*** META ((export #t)
+           (peephole (postfix ".car.car.cdr")))
+*/
+function sc_cdaar(p) { return p.car.car.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.car.cdr")))
+*/
+function sc_cdadr(p) { return p.cdr.car.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".car.cdr.cdr")))
+*/
+function sc_cddar(p) { return p.car.cdr.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.cdr.cdr")))
+*/
+function sc_cdddr(p) { return p.cdr.cdr.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".car.car.car.car")))
+*/
+function sc_caaaar(p) { return p.car.car.car.car; }
+/*** META ((export #t)
+           (peephole (postfix ".car.cdr.car.car")))
+*/
+function sc_caadar(p) { return p.car.cdr.car.car; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.car.car.car")))
+*/
+function sc_caaadr(p) { return p.cdr.car.car.car; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.cdr.car.car")))
+*/
+function sc_caaddr(p) { return p.cdr.cdr.car.car; }
+/*** META ((export #t)
+           (peephole (postfix ".car.car.car.cdr")))
+*/
+function sc_cdaaar(p) { return p.car.car.car.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".car.cdr.car.cdr")))
+*/
+function sc_cdadar(p) { return p.car.cdr.car.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.car.car.cdr")))
+*/
+function sc_cdaadr(p) { return p.cdr.car.car.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.cdr.car.cdr")))
+*/
+function sc_cdaddr(p) { return p.cdr.cdr.car.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".car.car.cdr.car")))
+*/
+function sc_cadaar(p) { return p.car.car.cdr.car; }
+/*** META ((export #t)
+           (peephole (postfix ".car.cdr.cdr.car")))
+*/
+function sc_caddar(p) { return p.car.cdr.cdr.car; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.car.cdr.car")))
+*/
+function sc_cadadr(p) { return p.cdr.car.cdr.car; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.cdr.cdr.car")))
+*/
+function sc_cadddr(p) { return p.cdr.cdr.cdr.car; }
+/*** META ((export #t)
+           (peephole (postfix ".car.car.cdr.cdr")))
+*/
+function sc_cddaar(p) { return p.car.car.cdr.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".car.cdr.cdr.cdr")))
+*/
+function sc_cdddar(p) { return p.car.cdr.cdr.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.car.cdr.cdr")))
+*/
+function sc_cddadr(p) { return p.cdr.car.cdr.cdr; }
+/*** META ((export #t)
+           (peephole (postfix ".cdr.cdr.cdr.cdr")))
+*/
+function sc_cddddr(p) { return p.cdr.cdr.cdr.cdr; }
+
+/*** META ((export #t)) */
+function sc_lastPair(l) {
+    if (!sc_isPair(l)) sc_error("sc_lastPair: pair expected");
+    var res = l;
+    var cdr = l.cdr;
+    while (sc_isPair(cdr)) {
+        res = cdr;
+        cdr = res.cdr;
+    }
+    return res;
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix " === null")))
+*/
+function sc_isNull(o) {
+    return (o === null);
+}
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isList(o) {
+    var rabbit;
+    var turtle;
+
+    var rabbit = o;
+    var turtle = o;
+    while (true) {
+        if (rabbit === null ||
+            (rabbit instanceof sc_Pair && rabbit.cdr === null))
+            return true;  // end of list
+        else if ((rabbit instanceof sc_Pair) &&
+                 (rabbit.cdr instanceof sc_Pair)) {
+            rabbit = rabbit.cdr.cdr;
+            turtle = turtle.cdr;
+            if (rabbit === turtle) return false; // cycle
+        } else
+            return false; // not pair
+    }
+}
+
+/*** META ((export #t)) */
+function sc_list() {
+    var res = null;
+    var a = arguments;
+    for (var i = a.length-1; i >= 0; i--)
+        res = new sc_Pair(a[i], res);
+    return res;
+}
+
+/*** META ((export #t)) */
+function sc_iota(num, init) {
+   var res = null;
+   if (!init) init = 0;
+   for (var i = num - 1; i >= 0; i--)
+      res = new sc_Pair(i + init, res);
+   return res;
+}
+
+/*** META ((export #t)) */
+function sc_makeList(nbEls, fill) {
+    var res = null;
+    for (var i = 0; i < nbEls; i++)
+        res = new sc_Pair(fill, res);
+    return res;
+}
+
+/*** META ((export #t)) */
+function sc_length(l) {
+    var res = 0;
+    while (l !== null) {
+        res++;
+        l = l.cdr;
+    }
+    return res;
+}
+
+/*** META ((export #t)) */
+function sc_remq(o, l) {
+    var dummy = { cdr : null };
+    var tail = dummy;
+    while (l !== null) {
+        if (l.car !== o) {
+            tail.cdr = sc_cons(l.car, null);
+            tail = tail.cdr;
+        }
+        l = l.cdr;
+    }
+    return dummy.cdr;
+}
+
+/*** META ((export #t)) */
+function sc_remqBang(o, l) {
+    var dummy = { cdr : null };
+    var tail = dummy;
+    var needsAssig = true;
+    while (l !== null) {
+        if (l.car === o) {
+            needsAssig = true;
+        } else {
+            if (needsAssig) {
+                tail.cdr = l;
+                needsAssig = false;
+            }
+            tail = l;
+        }
+        l = l.cdr;
+    }
+    tail.cdr = null;
+    return dummy.cdr;
+}
+
+/*** META ((export #t)) */
+function sc_delete(o, l) {
+    var dummy = { cdr : null };
+    var tail = dummy;
+    while (l !== null) {
+        if (!sc_isEqual(l.car, o)) {
+            tail.cdr = sc_cons(l.car, null);
+            tail = tail.cdr;
+        }
+        l = l.cdr;
+    }
+    return dummy.cdr;
+}
+
+/*** META ((export #t)) */
+function sc_deleteBang(o, l) {
+    var dummy = { cdr : null };
+    var tail = dummy;
+    var needsAssig = true;
+    while (l !== null) {
+        if (sc_isEqual(l.car, o)) {
+            needsAssig = true;
+        } else {
+            if (needsAssig) {
+                tail.cdr = l;
+                needsAssig = false;
+            }
+            tail = l;
+        }
+        l = l.cdr;
+    }
+    tail.cdr = null;
+    return dummy.cdr;
+}
+
+function sc_reverseAppendBang(l1, l2) {
+    var res = l2;
+    while (l1 !== null) {
+        var tmp = res;
+        res = l1;
+        l1 = l1.cdr;
+        res.cdr = tmp;
+    }
+    return res;
+}
+        
+function sc_dualAppend(l1, l2) {
+    if (l1 === null) return l2;
+    if (l2 === null) return l1;
+    var rev = sc_reverse(l1);
+    return sc_reverseAppendBang(rev, l2);
+}
+
+/*** META ((export #t)) */
+function sc_append() {
+    if (arguments.length === 0)
+        return null;
+    var res = arguments[arguments.length - 1];
+    for (var i = arguments.length - 2; i >= 0; i--)
+        res = sc_dualAppend(arguments[i], res);
+    return res;
+}
+
+function sc_dualAppendBang(l1, l2) {
+    if (l1 === null) return l2;
+    if (l2 === null) return l1;
+    var tmp = l1;
+    while (tmp.cdr !== null) tmp=tmp.cdr;
+    tmp.cdr = l2;
+    return l1;
+}
+    
+/*** META ((export #t)) */
+function sc_appendBang() {
+    var res = null;
+    for (var i = 0; i < arguments.length; i++)
+        res = sc_dualAppendBang(res, arguments[i]);
+    return res;
+}
+
+/*** META ((export #t)) */
+function sc_reverse(l1) {
+    var res = null;
+    while (l1 !== null) {
+        res = sc_cons(l1.car, res);
+        l1 = l1.cdr;
+    }
+    return res;
+}
+
+/*** META ((export #t)) */
+function sc_reverseBang(l) {
+    return sc_reverseAppendBang(l, null);
+}
+
+/*** META ((export #t)) */
+function sc_listTail(l, k) {
+    var res = l;
+    for (var i = 0; i < k; i++) {
+        res = res.cdr;
+    }
+    return res;
+}
+
+/*** META ((export #t)) */
+function sc_listRef(l, k) {
+    return sc_listTail(l, k).car;
+}
+
+/* // unoptimized generic versions
+function sc_memX(o, l, comp) {
+    while (l != null) {
+        if (comp(l.car, o))
+            return l;
+        l = l.cdr;
+    }
+    return false;
+}
+function sc_memq(o, l) { return sc_memX(o, l, sc_isEq); }
+function sc_memv(o, l) { return sc_memX(o, l, sc_isEqv); }
+function sc_member(o, l) { return sc_memX(o, l, sc_isEqual); }
+*/
+
+/* optimized versions */
+/*** META ((export #t)) */
+function sc_memq(o, l) {
+    while (l !== null) {
+        if (l.car === o)
+            return l;
+        l = l.cdr;
+    }
+    return false;
+}
+/*** META ((export #t)) */
+function sc_memv(o, l) {
+    while (l !== null) {
+        if (l.car === o)
+            return l;
+        l = l.cdr;
+    }
+    return false;
+}
+/*** META ((export #t)) */
+function sc_member(o, l) {
+    while (l !== null) {
+        if (sc_isEqual(l.car,o))
+            return l;
+        l = l.cdr;
+    }
+    return false;
+}
+
+/* // generic unoptimized versions
+function sc_assX(o, al, comp) {
+    while (al != null) {
+        if (comp(al.car.car, o))
+            return al.car;
+        al = al.cdr;
+    }
+    return false;
+}
+function sc_assq(o, al) { return sc_assX(o, al, sc_isEq); }
+function sc_assv(o, al) { return sc_assX(o, al, sc_isEqv); }
+function sc_assoc(o, al) { return sc_assX(o, al, sc_isEqual); }
+*/
+// optimized versions
+/*** META ((export #t)) */
+function sc_assq(o, al) {
+    while (al !== null) {
+        if (al.car.car === o)
+            return al.car;
+        al = al.cdr;
+    }
+    return false;
+}
+/*** META ((export #t)) */
+function sc_assv(o, al) {
+    while (al !== null) {
+        if (al.car.car === o)
+            return al.car;
+        al = al.cdr;
+    }
+    return false;
+}
+/*** META ((export #t)) */
+function sc_assoc(o, al) {
+    while (al !== null) {
+        if (sc_isEqual(al.car.car, o))
+            return al.car;
+        al = al.cdr;
+    }
+    return false;
+}
+
+/* can be used for mutable strings and characters */
+function sc_isCharStringEqual(cs1, cs2) { return cs1.val === cs2.val; }
+function sc_isCharStringLess(cs1, cs2) { return cs1.val < cs2.val; }
+function sc_isCharStringGreater(cs1, cs2) { return cs1.val > cs2.val; }
+function sc_isCharStringLessEqual(cs1, cs2) { return cs1.val <= cs2.val; }
+function sc_isCharStringGreaterEqual(cs1, cs2) { return cs1.val >= cs2.val; }
+function sc_isCharStringCIEqual(cs1, cs2)
+    { return cs1.val.toLowerCase() === cs2.val.toLowerCase(); }
+function sc_isCharStringCILess(cs1, cs2)
+    { return cs1.val.toLowerCase() < cs2.val.toLowerCase(); }
+function sc_isCharStringCIGreater(cs1, cs2)
+    { return cs1.val.toLowerCase() > cs2.val.toLowerCase(); }
+function sc_isCharStringCILessEqual(cs1, cs2)
+    { return cs1.val.toLowerCase() <= cs2.val.toLowerCase(); }
+function sc_isCharStringCIGreaterEqual(cs1, cs2)
+    { return cs1.val.toLowerCase() >= cs2.val.toLowerCase(); }
+
+
+
+
+function sc_Char(c) {
+    var cached = sc_Char.lazy[c];
+    if (cached)
+        return cached;
+    this.val = c;
+    sc_Char.lazy[c] = this;
+    // add return, so FF does not complain.
+    return undefined;
+}
+sc_Char.lazy = new Object();
+// thanks to Eric
+sc_Char.char2readable = {
+    "\000": "#\\null",
+    "\007": "#\\bell",
+    "\010": "#\\backspace",
+    "\011": "#\\tab",
+    "\012": "#\\newline",
+    "\014": "#\\page",
+    "\015": "#\\return",
+    "\033": "#\\escape",
+    "\040": "#\\space",
+    "\177": "#\\delete",
+
+  /* poeticless names */
+    "\001": "#\\soh",
+    "\002": "#\\stx",
+    "\003": "#\\etx",
+    "\004": "#\\eot",
+    "\005": "#\\enq",
+    "\006": "#\\ack",
+
+    "\013": "#\\vt",
+    "\016": "#\\so",
+    "\017": "#\\si",
+
+    "\020": "#\\dle",
+    "\021": "#\\dc1",
+    "\022": "#\\dc2",
+    "\023": "#\\dc3",
+    "\024": "#\\dc4",
+    "\025": "#\\nak",
+    "\026": "#\\syn",
+    "\027": "#\\etb",
+
+    "\030": "#\\can",
+    "\031": "#\\em",
+    "\032": "#\\sub",
+    "\033": "#\\esc",
+    "\034": "#\\fs",
+    "\035": "#\\gs",
+    "\036": "#\\rs",
+    "\037": "#\\us"};
+
+sc_Char.readable2char = {
+    "null": "\000",
+    "bell": "\007",
+    "backspace": "\010",
+    "tab": "\011",
+    "newline": "\012",
+    "page": "\014",
+    "return": "\015",
+    "escape": "\033",
+    "space": "\040",
+    "delete": "\000",
+    "soh": "\001",
+    "stx": "\002",
+    "etx": "\003",
+    "eot": "\004",
+    "enq": "\005",
+    "ack": "\006",
+    "bel": "\007",
+    "bs": "\010",
+    "ht": "\011",
+    "nl": "\012",
+    "vt": "\013",
+    "np": "\014",
+    "cr": "\015",
+    "so": "\016",
+    "si": "\017",
+    "dle": "\020",
+    "dc1": "\021",
+    "dc2": "\022",
+    "dc3": "\023",
+    "dc4": "\024",
+    "nak": "\025",
+    "syn": "\026",
+    "etb": "\027",
+    "can": "\030",
+    "em": "\031",
+    "sub": "\032",
+    "esc": "\033",
+    "fs": "\034",
+    "gs": "\035",
+    "rs": "\036",
+    "us": "\037",
+    "sp": "\040",
+    "del": "\177"};
+    
+sc_Char.prototype.toString = function() {
+    return this.val;
+};
+// sc_toDisplayString == toString
+sc_Char.prototype.sc_toWriteString = function() {
+    var entry = sc_Char.char2readable[this.val];
+    if (entry)
+        return entry;
+    else
+        return "#\\" + this.val;
+};
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix "instanceof sc_Char")))
+*/
+function sc_isChar(c) {
+    return (c instanceof sc_Char);
+}
+
+/*** META ((export char=?)
+           (type bool)
+           (peephole (hole 2 c1 ".val === " c2 ".val")))
+*/
+var sc_isCharEqual = sc_isCharStringEqual;
+/*** META ((export char<?)
+           (type bool)
+           (peephole (hole 2 c1 ".val < " c2 ".val")))
+*/
+var sc_isCharLess = sc_isCharStringLess;
+/*** META ((export char>?)
+           (type bool)
+           (peephole (hole 2 c1 ".val > " c2 ".val")))
+*/
+var sc_isCharGreater = sc_isCharStringGreater;
+/*** META ((export char<=?)
+           (type bool)
+           (peephole (hole 2 c1 ".val <= " c2 ".val")))
+*/
+var sc_isCharLessEqual = sc_isCharStringLessEqual;
+/*** META ((export char>=?)
+           (type bool)
+           (peephole (hole 2 c1 ".val >= " c2 ".val")))
+*/
+var sc_isCharGreaterEqual = sc_isCharStringGreaterEqual;
+/*** META ((export char-ci=?)
+           (type bool)
+           (peephole (hole 2 c1 ".val.toLowerCase() === " c2 ".val.toLowerCase()")))
+*/
+var sc_isCharCIEqual = sc_isCharStringCIEqual;
+/*** META ((export char-ci<?)
+           (type bool)
+           (peephole (hole 2 c1 ".val.toLowerCase() < " c2 ".val.toLowerCase()")))
+*/
+var sc_isCharCILess = sc_isCharStringCILess;
+/*** META ((export char-ci>?)
+           (type bool)
+           (peephole (hole 2 c1 ".val.toLowerCase() > " c2 ".val.toLowerCase()")))
+*/
+var sc_isCharCIGreater = sc_isCharStringCIGreater;
+/*** META ((export char-ci<=?)
+           (type bool)
+           (peephole (hole 2 c1 ".val.toLowerCase() <= " c2 ".val.toLowerCase()")))
+*/
+var sc_isCharCILessEqual = sc_isCharStringCILessEqual;
+/*** META ((export char-ci>=?)
+           (type bool)
+           (peephole (hole 2 c1 ".val.toLowerCase() >= " c2 ".val.toLowerCase()")))
+*/
+var sc_isCharCIGreaterEqual = sc_isCharStringCIGreaterEqual;
+
+var SC_NUMBER_CLASS = "0123456789";
+var SC_WHITESPACE_CLASS = ' \r\n\t\f';
+var SC_LOWER_CLASS = 'abcdefghijklmnopqrstuvwxyz';
+var SC_UPPER_CLASS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
+
+function sc_isCharOfClass(c, cl) { return (cl.indexOf(c) != -1); }
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isCharAlphabetic(c)
+    { return sc_isCharOfClass(c.val, SC_LOWER_CLASS) ||
+          sc_isCharOfClass(c.val, SC_UPPER_CLASS); }
+/*** META ((export #t)
+           (type bool)
+           (peephole (hole 1 "SC_NUMBER_CLASS.indexOf(" c ".val) != -1")))
+*/
+function sc_isCharNumeric(c)
+    { return sc_isCharOfClass(c.val, SC_NUMBER_CLASS); }
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isCharWhitespace(c) {
+    var tmp = c.val;
+    return tmp === " " || tmp === "\r" || tmp === "\n" || tmp === "\t" || tmp === "\f";
+}
+/*** META ((export #t)
+           (type bool)
+           (peephole (hole 1 "SC_UPPER_CLASS.indexOf(" c ".val) != -1")))
+*/
+function sc_isCharUpperCase(c)
+    { return sc_isCharOfClass(c.val, SC_UPPER_CLASS); }
+/*** META ((export #t)
+           (type bool)
+           (peephole (hole 1 "SC_LOWER_CLASS.indexOf(" c ".val) != -1")))
+*/
+function sc_isCharLowerCase(c)
+    { return sc_isCharOfClass(c.val, SC_LOWER_CLASS); }
+
+/*** META ((export #t)
+           (peephole (postfix ".val.charCodeAt(0)")))
+*/
+function sc_char2integer(c)
+    { return c.val.charCodeAt(0); }
+/*** META ((export #t)
+           (peephole (hole 1 "new sc_Char(String.fromCharCode(" n "))")))
+*/
+function sc_integer2char(n)
+    { return new sc_Char(String.fromCharCode(n)); }
+
+/*** META ((export #t)
+           (peephole (hole 1 "new sc_Char(" c ".val.toUpperCase())")))
+*/
+function sc_charUpcase(c)
+    { return new sc_Char(c.val.toUpperCase()); }
+/*** META ((export #t)
+           (peephole (hole 1 "new sc_Char(" c ".val.toLowerCase())")))
+*/
+function sc_charDowncase(c)
+    { return new sc_Char(c.val.toLowerCase()); }
+
+function sc_makeJSStringOfLength(k, c) {
+    var fill;
+    if (c === undefined)
+        fill = " ";
+    else
+        fill = c;
+    var res = "";
+    var len = 1;
+    // every round doubles the size of fill.
+    while (k >= len) {
+        if (k & len)
+            res = res.concat(fill);
+        fill = fill.concat(fill);
+        len *= 2;
+    }
+    return res;
+}
+
+function sc_makejsString(k, c) {
+    var fill;
+    if (c)
+        fill = c.val;
+    else
+        fill = " ";
+    return sc_makeJSStringOfLength(k, fill);
+}
+
+function sc_jsstring2list(s) {
+    var res = null;
+    for (var i = s.length - 1; i >= 0; i--)
+        res = sc_cons(new sc_Char(s.charAt(i)), res);
+    return res;
+}
+
+function sc_list2jsstring(l) {
+    var a = new Array();
+    while(l !== null) {
+        a.push(l.car.val);
+        l = l.cdr;
+    }
+    return "".concat.apply("", a);
+}
+
+var sc_Vector = Array;
+
+sc_Vector.prototype.sc_toWriteOrDisplayString = function(writeOrDisplay) {
+    if (this.length === 0) return "#()";
+
+    var res = "#(" + writeOrDisplay(this[0]);
+    for (var i = 1; i < this.length; i++)
+        res += " " + writeOrDisplay(this[i]);
+    res += ")";
+    return res;
+};
+sc_Vector.prototype.sc_toDisplayString = function() {
+    return this.sc_toWriteOrDisplayString(sc_toDisplayString);
+};
+sc_Vector.prototype.sc_toWriteString = function() {
+    return this.sc_toWriteOrDisplayString(sc_toWriteString);
+};
+
+/*** META ((export vector? array?)
+           (type bool)
+           (peephole (postfix " instanceof sc_Vector")))
+*/
+function sc_isVector(v) {
+    return (v instanceof sc_Vector);
+}
+
+// only applies to vectors
+function sc_isVectorEqual(v1, v2, comp) {
+    if (v1.length !== v2.length) return false;
+    for (var i = 0; i < v1.length; i++)
+        if (!comp(v1[i], v2[i])) return false;
+    return true;
+}
+
+/*** META ((export make-vector make-array)) */
+function sc_makeVector(size, fill) {
+    var a = new sc_Vector(size);
+    if (fill !== undefined)
+        sc_vectorFillBang(a, fill);
+    return a;
+}
+
+/*** META ((export vector array)
+           (peephole (vector)))
+*/
+function sc_vector() {
+    var a = new sc_Vector();
+    for (var i = 0; i < arguments.length; i++)
+        a.push(arguments[i]);
+    return a;
+}
+
+/*** META ((export vector-length array-length)
+           (peephole (postfix ".length")))
+*/
+function sc_vectorLength(v) {
+    return v.length;
+}
+
+/*** META ((export vector-ref array-ref)
+           (peephole (hole 2 v "[" pos "]")))
+*/
+function sc_vectorRef(v, pos) {
+    return v[pos];
+}
+
+/*** META ((export vector-set! array-set!)
+           (peephole (hole 3 v "[" pos "] = " val)))
+*/
+function sc_vectorSetBang(v, pos, val) {
+    v[pos] = val;
+}
+
+/*** META ((export vector->list array->list)) */
+function sc_vector2list(a) {
+    var res = null;
+    for (var i = a.length-1; i >= 0; i--)
+        res = sc_cons(a[i], res);
+    return res;
+}
+
+/*** META ((export list->vector list->array)) */
+function sc_list2vector(l) {
+    var a = new sc_Vector();
+    while(l !== null) {
+        a.push(l.car);
+        l = l.cdr;
+    }
+    return a;
+}
+
+/*** META ((export vector-fill! array-fill!)) */
+function sc_vectorFillBang(a, fill) {
+    for (var i = 0; i < a.length; i++)
+        a[i] = fill;
+}
+
+
+/*** META ((export #t)) */
+function sc_copyVector(a, len) {
+    if (len <= a.length)
+        return a.slice(0, len);
+    else {
+        var tmp = a.concat();
+        tmp.length = len;
+        return tmp;
+    }
+}
+
+/*** META ((export #t)
+           (peephole (hole 3 a ".slice(" start "," end ")")))
+*/
+function sc_vectorCopy(a, start, end) {
+    return a.slice(start, end);
+}
+
+/*** META ((export #t)) */
+function sc_vectorCopyBang(target, tstart, source, sstart, send) {
+    if (!sstart) sstart = 0;
+    if (!send) send = source.length;
+
+    // if target == source we don't want to overwrite not yet copied elements.
+    if (tstart <= sstart) {
+        for (var i = tstart, j = sstart; j < send; i++, j++) {
+            target[i] = source[j];
+        }
+    } else {
+        var diff = send - sstart;
+        for (var i = tstart + diff - 1, j = send - 1;
+             j >= sstart;
+             i--, j--) {
+            target[i] = source[j];
+        }
+    }
+    return target;
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (hole 1 "typeof " o " === 'function'")))
+*/
+function sc_isProcedure(o) {
+    return (typeof o === "function");
+}
+
+/*** META ((export #t)) */
+function sc_apply(proc) {
+    var args = new Array();
+    // first part of arguments are not in list-form.
+    for (var i = 1; i < arguments.length - 1; i++)
+        args.push(arguments[i]);
+    var l = arguments[arguments.length - 1];
+    while (l !== null) {
+        args.push(l.car);
+        l = l.cdr;
+    }
+    return proc.apply(null, args);
+}
+
+/*** META ((export #t)) */
+function sc_map(proc, l1) {
+    if (l1 === undefined)
+        return null;
+    // else
+    var nbApplyArgs = arguments.length - 1;
+    var applyArgs = new Array(nbApplyArgs);
+    var revres = null;
+    while (l1 !== null) {
+        for (var i = 0; i < nbApplyArgs; i++) {
+            applyArgs[i] = arguments[i + 1].car;
+            arguments[i + 1] = arguments[i + 1].cdr;
+        }
+        revres = sc_cons(proc.apply(null, applyArgs), revres);
+    }
+    return sc_reverseAppendBang(revres, null);
+}
+
+/*** META ((export #t)) */
+function sc_mapBang(proc, l1) {
+    if (l1 === undefined)
+        return null;
+    // else
+    var l1_orig = l1;
+    var nbApplyArgs = arguments.length - 1;
+    var applyArgs = new Array(nbApplyArgs);
+    while (l1 !== null) {
+        var tmp = l1;
+        for (var i = 0; i < nbApplyArgs; i++) {
+            applyArgs[i] = arguments[i + 1].car;
+            arguments[i + 1] = arguments[i + 1].cdr;
+        }
+        tmp.car = proc.apply(null, applyArgs);
+    }
+    return l1_orig;
+}
+     
+/*** META ((export #t)) */
+function sc_forEach(proc, l1) {
+    if (l1 === undefined)
+        return undefined;
+    // else
+    var nbApplyArgs = arguments.length - 1;
+    var applyArgs = new Array(nbApplyArgs);
+    while (l1 !== null) {
+        for (var i = 0; i < nbApplyArgs; i++) {
+            applyArgs[i] = arguments[i + 1].car;
+            arguments[i + 1] = arguments[i + 1].cdr;
+        }
+        proc.apply(null, applyArgs);
+    }
+    // add return so FF does not complain.
+    return undefined;
+}
+
+/*** META ((export #t)) */
+function sc_filter(proc, l1) {
+    var dummy = { cdr : null };
+    var tail = dummy;
+    while (l1 !== null) {
+        if (proc(l1.car) !== false) {
+            tail.cdr = sc_cons(l1.car, null);
+            tail = tail.cdr;
+        }
+        l1 = l1.cdr;
+    }
+    return dummy.cdr;
+}
+
+/*** META ((export #t)) */
+function sc_filterBang(proc, l1) {
+    var head = sc_cons("dummy", l1);
+    var it = head;
+    var next = l1;
+    while (next !== null) {
+        if (proc(next.car) !== false) {
+            it.cdr = next
+            it = next;
+        }
+        next = next.cdr;
+    }
+    it.cdr = null;
+    return head.cdr;
+}
+
+function sc_filterMap1(proc, l1) {
+    var revres = null;
+    while (l1 !== null) {
+        var tmp = proc(l1.car)
+        if (tmp !== false) revres = sc_cons(tmp, revres);
+        l1 = l1.cdr;
+    }
+    return sc_reverseAppendBang(revres, null);
+}
+function sc_filterMap2(proc, l1, l2) {
+    var revres = null;
+    while (l1 !== null) {
+        var tmp = proc(l1.car, l2.car);
+        if(tmp !== false) revres = sc_cons(tmp, revres);
+        l1 = l1.cdr;
+        l2 = l2.cdr
+    }
+    return sc_reverseAppendBang(revres, null);
+}
+
+/*** META ((export #t)) */
+function sc_filterMap(proc, l1, l2, l3) {
+    if (l2 === undefined)
+        return sc_filterMap1(proc, l1);
+    else if (l3 === undefined)
+        return sc_filterMap2(proc, l1, l2);
+    // else
+    var nbApplyArgs = arguments.length - 1;
+    var applyArgs = new Array(nbApplyArgs);
+    var revres = null;
+    while (l1 !== null) {
+        for (var i = 0; i < nbApplyArgs; i++) {
+            applyArgs[i] = arguments[i + 1].car;
+            arguments[i + 1] = arguments[i + 1].cdr;
+        }
+        var tmp = proc.apply(null, applyArgs);
+        if(tmp !== false) revres = sc_cons(tmp, revres);
+    }
+    return sc_reverseAppendBang(revres, null);
+}
+
+/*** META ((export #t)) */
+function sc_any(proc, l) {
+    var revres = null;
+    while (l !== null) {
+        var tmp = proc(l.car);
+        if(tmp !== false) return tmp;
+        l = l.cdr;
+    }
+    return false;
+}
+
+/*** META ((export any?)
+           (peephole (hole 2 "sc_any(" proc "," l ") !== false")))
+*/
+function sc_anyPred(proc, l) {
+    return sc_any(proc, l)!== false;
+}
+
+/*** META ((export #t)) */
+function sc_every(proc, l) {
+    var revres = null;
+    var tmp = true;
+    while (l !== null) {
+        tmp = proc(l.car);
+        if (tmp === false) return false;
+        l = l.cdr;
+    }
+    return tmp;
+}
+
+/*** META ((export every?)
+           (peephole (hole 2 "sc_every(" proc "," l ") !== false")))
+*/
+function sc_everyPred(proc, l) {
+    var tmp = sc_every(proc, l);
+    if (tmp !== false) return true;
+    return false;
+}
+
+/*** META ((export #t)
+           (peephole (postfix "()")))
+*/
+function sc_force(o) {
+    return o();
+}
+
+/*** META ((export #t)) */
+function sc_makePromise(proc) {
+    var isResultReady = false;
+    var result = undefined;
+    return function() {
+        if (!isResultReady) {
+            var tmp = proc();
+            if (!isResultReady) {
+                isResultReady = true;
+                result = tmp;
+            }
+        }
+        return result;
+    };
+}
+
+function sc_Values(values) {
+    this.values = values;
+}
+
+/*** META ((export #t)
+           (peephole (values)))
+*/
+function sc_values() {
+    if (arguments.length === 1)
+        return arguments[0];
+    else
+        return new sc_Values(arguments);
+}
+
+/*** META ((export #t)) */
+function sc_callWithValues(producer, consumer) {
+    var produced = producer();
+    if (produced instanceof sc_Values)
+        return consumer.apply(null, produced.values);
+    else
+        return consumer(produced);
+}
+
+/*** META ((export #t)) */
+function sc_dynamicWind(before, thunk, after) {
+    before();
+    try {
+        var res = thunk();
+        return res;
+    } finally {
+        after();
+    }
+}
+
+
+// TODO: eval/scheme-report-environment/null-environment/interaction-environment
+
+// LIMITATION: 'load' doesn't exist without files.
+// LIMITATION: transcript-on/transcript-off doesn't exist without files.
+
+
+function sc_Struct(name) {
+    this.name = name;
+}
+sc_Struct.prototype.sc_toDisplayString = function() {
+    return "#<struct" + sc_hash(this) + ">";
+};
+sc_Struct.prototype.sc_toWriteString = sc_Struct.prototype.sc_toDisplayString;
+
+/*** META ((export #t)
+           (peephole (hole 1 "new sc_Struct(" name ")")))
+*/
+function sc_makeStruct(name) {
+    return new sc_Struct(name);
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix " instanceof sc_Struct")))
+*/
+function sc_isStruct(o) {
+    return (o instanceof sc_Struct);
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (hole 2 "(" 1 " instanceof sc_Struct) && ( " 1 ".name === " 0 ")")))
+*/
+function sc_isStructNamed(name, s) {
+    return ((s instanceof sc_Struct) && (s.name === name));
+}
+
+/*** META ((export struct-field)
+           (peephole (hole 3 0 "[" 2 "]")))
+*/
+function sc_getStructField(s, name, field) {
+    return s[field];
+}
+
+/*** META ((export struct-field-set!)
+           (peephole (hole 4 0 "[" 2 "] = " 3)))
+*/
+function sc_setStructFieldBang(s, name, field, val) {
+    s[field] = val;
+}
+
+/*** META ((export #t)
+           (peephole (prefix "~")))
+*/
+function sc_bitNot(x) {
+    return ~x;
+}
+
+/*** META ((export #t)
+           (peephole (infix 2 2 "&")))
+*/
+function sc_bitAnd(x, y) {
+    return x & y;
+}
+
+/*** META ((export #t)
+           (peephole (infix 2 2 "|")))
+*/
+function sc_bitOr(x, y) {
+    return x | y;
+}
+
+/*** META ((export #t)
+           (peephole (infix 2 2 "^")))
+*/
+function sc_bitXor(x, y) {
+    return x ^ y;
+}
+
+/*** META ((export #t)
+           (peephole (infix 2 2 "<<")))
+*/
+function sc_bitLsh(x, y) {
+    return x << y;
+}
+
+/*** META ((export #t)
+           (peephole (infix 2 2 ">>")))
+*/
+function sc_bitRsh(x, y) {
+    return x >> y;
+}
+
+/*** META ((export #t)
+           (peephole (infix 2 2 ">>>")))
+*/
+function sc_bitUrsh(x, y) {
+    return x >>> y;
+}
+
+/*** META ((export js-field js-property)
+           (peephole (hole 2 o "[" field "]")))
+*/
+function sc_jsField(o, field) {
+    return o[field];
+}
+
+/*** META ((export js-field-set! js-property-set!)
+           (peephole (hole 3 o "[" field "] = " val)))
+*/
+function sc_setJsFieldBang(o, field, val) {
+    return o[field] = val;
+}
+
+/*** META ((export js-field-delete! js-property-delete!)
+           (peephole (hole 2 "delete" o "[" field "]")))
+*/
+function sc_deleteJsFieldBang(o, field) {
+    delete o[field];
+}
+
+/*** META ((export #t)
+           (peephole (jsCall)))
+*/
+function sc_jsCall(o, fun) {
+    var args = new Array();
+    for (var i = 2; i < arguments.length; i++)
+        args[i-2] = arguments[i];
+    return fun.apply(o, args);
+}
+
+/*** META ((export #t)
+           (peephole (jsMethodCall)))
+*/
+function sc_jsMethodCall(o, field) {
+    var args = new Array();
+    for (var i = 2; i < arguments.length; i++)
+        args[i-2] = arguments[i];
+    return o[field].apply(o, args);
+}
+
+/*** META ((export new js-new)
+           (peephole (jsNew)))
+*/
+function sc_jsNew(c) {
+    var evalStr = "new c(";
+    evalStr +=arguments.length > 1? "arguments[1]": "";
+    for (var i = 2; i < arguments.length; i++)
+        evalStr += ", arguments[" + i + "]";
+    evalStr +=")";
+    return eval(evalStr);
+}    
+
+// ======================== RegExp ====================
+/*** META ((export #t)) */
+function sc_pregexp(re) {
+    return new RegExp(sc_string2jsstring(re));
+}
+
+/*** META ((export #t)) */
+function sc_pregexpMatch(re, s) {
+    var reg = (re instanceof RegExp) ? re : sc_pregexp(re);
+    var tmp = reg.exec(sc_string2jsstring(s));
+    
+    if (tmp == null) return false;
+    
+    var res = null;
+    for (var i = tmp.length-1; i >= 0; i--) {
+        if (tmp[i] !== null) {
+            res = sc_cons(sc_jsstring2string(tmp[i]), res);
+        } else {
+            res = sc_cons(false, res);
+        }
+    }
+    return res;
+}
+   
+/*** META ((export #t)) */
+function sc_pregexpReplace(re, s1, s2) {
+   var reg;
+   var jss1 = sc_string2jsstring(s1);
+   var jss2 = sc_string2jsstring(s2);
+
+   if (re instanceof RegExp) {
+       if (re.global)
+           reg = re;
+       else
+           reg = new RegExp(re.source);
+   } else {
+       reg = new RegExp(sc_string2jsstring(re));
+   }
+
+   return jss1.replace(reg, jss2);
+}
+   
+/*** META ((export pregexp-replace*)) */
+function sc_pregexpReplaceAll(re, s1, s2) {
+   var reg;
+   var jss1 = sc_string2jsstring(s1);
+   var jss2 = sc_string2jsstring(s2);
+
+   if (re instanceof RegExp) {
+      if (re.global)
+          reg = re;
+      else
+          reg = new RegExp(re.source, "g");
+   } else {
+       reg = new RegExp(sc_string2jsstring(re), "g");
+   }
+
+   return jss1.replace(reg, jss2);
+}
+
+/*** META ((export #t)) */
+function sc_pregexpSplit(re, s) {
+   var reg = ((re instanceof RegExp) ?
+              re :
+              new RegExp(sc_string2jsstring(re)));
+   var jss = sc_string2jsstring(s);
+   var tmp = jss.split(reg);
+
+   if (tmp == null) return false;
+
+   return sc_vector2list(tmp);
+}
+   
+
+/* =========================================================================== */
+/* Other library stuff */
+/* =========================================================================== */
+
+/*** META ((export #t)
+           (peephole (hole 1 "Math.floor(Math.random()*" 'n ")")))
+*/
+function sc_random(n) {
+    return Math.floor(Math.random()*n);
+}
+
+/*** META ((export current-date)
+           (peephole (hole 0 "new Date()")))
+*/
+function sc_currentDate() {
+   return new Date();
+}
+
+function sc_Hashtable() {
+}
+sc_Hashtable.prototype.toString = function() {
+    return "#{%hashtable}";
+};
+// sc_toWriteString == sc_toDisplayString == toString
+
+function sc_HashtableElement(key, val) {
+    this.key = key;
+    this.val = val;
+}
+
+/*** META ((export #t)
+           (peephole (hole 0 "new sc_Hashtable()")))
+*/
+function sc_makeHashtable() {
+    return new sc_Hashtable();
+}
+
+/*** META ((export #t)) */
+function sc_hashtablePutBang(ht, key, val) {
+    var hash = sc_hash(key);
+    ht[hash] = new sc_HashtableElement(key, val);
+}
+
+/*** META ((export #t)) */
+function sc_hashtableGet(ht, key) {
+    var hash = sc_hash(key);
+    if (hash in ht)
+        return ht[hash].val;
+    else
+        return false;
+}
+
+/*** META ((export #t)) */
+function sc_hashtableForEach(ht, f) {
+    for (var v in ht) {
+        if (ht[v] instanceof sc_HashtableElement)
+            f(ht[v].key, ht[v].val);
+    }
+}
+
+/*** META ((export hashtable-contains?)
+           (peephole (hole 2 "sc_hash(" 1 ") in " 0)))
+*/
+function sc_hashtableContains(ht, key) {
+    var hash = sc_hash(key);
+    if (hash in ht)
+        return true;
+    else
+        return false;
+}
+
+var SC_HASH_COUNTER = 0;
+
+function sc_hash(o) {
+    if (o === null)
+        return "null";
+    else if (o === undefined)
+        return "undefined";
+    else if (o === true)
+        return "true";
+    else if (o === false)
+        return "false";
+    else if (typeof o === "number")
+        return "num-" + o;
+    else if (typeof o === "string")
+        return "jsstr-" + o;
+    else if (o.sc_getHash)
+        return o.sc_getHash();
+    else
+        return sc_counterHash.call(o);
+}
+function sc_counterHash() {
+    if (!this.sc_hash) {
+        this.sc_hash = "hash-" + SC_HASH_COUNTER;
+        SC_HASH_COUNTER++;
+    }
+    return this.sc_hash;
+}
+
+function sc_Trampoline(args, maxTailCalls) {
+    this['__trampoline return__'] = true;
+    this.args = args;
+    this.MAX_TAIL_CALLs = maxTailCalls;
+}
+// TODO: call/cc stuff
+sc_Trampoline.prototype.restart = function() {
+    var o = this;
+    while (true) {
+        // set both globals.
+        SC_TAIL_OBJECT.calls = o.MAX_TAIL_CALLs-1;
+        var fun = o.args.callee;
+        var res = fun.apply(SC_TAIL_OBJECT, o.args);
+        if (res instanceof sc_Trampoline)
+            o = res;
+        else
+            return res;
+    }
+}
+
+/*** META ((export bind-exit-lambda)) */
+function sc_bindExitLambda(proc) {
+    var escape_obj = new sc_BindExitException();
+    var escape = function(res) {
+        escape_obj.res = res;
+        throw escape_obj;
+    };
+    try {
+        return proc(escape);
+    } catch(e) {
+        if (e === escape_obj) {
+            return e.res;
+        }
+        throw e;
+    }
+}
+function sc_BindExitException() {
+    this._internalException = true;
+}
+
+var SC_SCM2JS_GLOBALS = new Object();
+
+// default tail-call depth.
+// normally the program should set it again. but just in case...
+var SC_TAIL_OBJECT = new Object();
+SC_SCM2JS_GLOBALS.TAIL_OBJECT = SC_TAIL_OBJECT;
+// ======================== I/O =======================
+
+/*------------------------------------------------------------------*/
+
+function sc_EOF() {
+}
+var SC_EOF_OBJECT = new sc_EOF();
+
+function sc_Port() {
+}
+
+/* --------------- Input ports -------------------------------------*/
+
+function sc_InputPort() {
+}
+sc_InputPort.prototype = new sc_Port();
+
+sc_InputPort.prototype.peekChar = function() {
+    if (!("peeked" in this))
+        this.peeked = this.getNextChar();
+    return this.peeked;
+}
+sc_InputPort.prototype.readChar = function() {
+    var tmp = this.peekChar();
+    delete this.peeked;
+    return tmp;
+}
+sc_InputPort.prototype.isCharReady = function() {
+    return true;
+}
+sc_InputPort.prototype.close = function() {
+    // do nothing
+}
+
+/* .............. String port ..........................*/
+function sc_ErrorInputPort() {
+};
+sc_ErrorInputPort.prototype = new sc_InputPort();
+sc_ErrorInputPort.prototype.getNextChar = function() {
+    throw "can't read from error-port.";
+};
+sc_ErrorInputPort.prototype.isCharReady = function() {
+    return false;
+};
+    
+
+/* .............. String port ..........................*/
+
+function sc_StringInputPort(jsStr) {
+    // we are going to do some charAts on the str.
+    // instead of recreating all the time a String-object, we
+    // create one in the beginning. (not sure, if this is really an optim)
+    this.str = new String(jsStr);
+    this.pos = 0;
+}
+sc_StringInputPort.prototype = new sc_InputPort();
+sc_StringInputPort.prototype.getNextChar = function() {
+    if (this.pos >= this.str.length)
+        return SC_EOF_OBJECT;
+    return this.str.charAt(this.pos++);
+};
+
+/* ------------- Read and other lib-funs  -------------------------------*/
+function sc_Token(type, val, pos) {
+    this.type = type;
+    this.val = val;
+    this.pos = pos;
+}
+sc_Token.EOF = 0/*EOF*/;
+sc_Token.OPEN_PAR = 1/*OPEN_PAR*/;
+sc_Token.CLOSE_PAR = 2/*CLOSE_PAR*/;
+sc_Token.OPEN_BRACE = 3/*OPEN_BRACE*/;
+sc_Token.CLOSE_BRACE = 4/*CLOSE_BRACE*/;
+sc_Token.OPEN_BRACKET = 5/*OPEN_BRACKET*/;
+sc_Token.CLOSE_BRACKET = 6/*CLOSE_BRACKET*/;
+sc_Token.WHITESPACE = 7/*WHITESPACE*/;
+sc_Token.QUOTE = 8/*QUOTE*/;
+sc_Token.ID = 9/*ID*/;
+sc_Token.DOT = 10/*DOT*/;
+sc_Token.STRING = 11/*STRING*/;
+sc_Token.NUMBER = 12/*NUMBER*/;
+sc_Token.ERROR = 13/*ERROR*/;
+sc_Token.VECTOR_BEGIN = 14/*VECTOR_BEGIN*/;
+sc_Token.TRUE = 15/*TRUE*/;
+sc_Token.FALSE = 16/*FALSE*/;
+sc_Token.UNSPECIFIED = 17/*UNSPECIFIED*/;
+sc_Token.REFERENCE = 18/*REFERENCE*/;
+sc_Token.STORE = 19/*STORE*/;
+sc_Token.CHAR = 20/*CHAR*/;
+
+var SC_ID_CLASS = SC_LOWER_CLASS + SC_UPPER_CLASS + "!$%*+-./:<=>?@^_~";
+function sc_Tokenizer(port) {
+    this.port = port;
+}
+sc_Tokenizer.prototype.peekToken = function() {
+    if (this.peeked)
+        return this.peeked;
+    var newToken = this.nextToken();
+    this.peeked = newToken;
+    return newToken;
+};
+sc_Tokenizer.prototype.readToken = function() {
+    var tmp = this.peekToken();
+    delete this.peeked;
+    return tmp;
+};
+sc_Tokenizer.prototype.nextToken = function() {
+    var port = this.port;
+    
+    function isNumberChar(c) {
+        return (c >= "0" && c <= "9");
+    };
+    function isIdOrNumberChar(c) {
+        return SC_ID_CLASS.indexOf(c) != -1 || // ID-char
+            (c >= "0" && c <= "9");
+    }
+    function isWhitespace(c) {
+        return c === " " || c === "\r" || c === "\n" || c === "\t" || c === "\f";
+    };
+    function isWhitespaceOrEOF(c) {
+        return isWhitespace(c) || c === SC_EOF_OBJECT;
+    };
+
+    function readString() {
+        res = "";
+        while (true) {
+            var c = port.readChar();
+            switch (c) {
+            case '"':
+                return new sc_Token(11/*STRING*/, res);
+            case "\\":
+                var tmp = port.readChar();
+                switch (tmp) {
+                case '0': res += "\0"; break;
+                case 'a': res += "\a"; break;
+                case 'b': res += "\b"; break;
+                case 'f': res += "\f"; break;
+                case 'n': res += "\n"; break;
+                case 'r': res += "\r"; break;
+                case 't': res += "\t"; break;
+                case 'v': res += "\v"; break;
+                case '"': res += '"'; break;
+                case '\\': res += '\\'; break;
+                case 'x':
+                    /* hexa-number */
+                    var nb = 0;
+                    while (true) {
+                        var hexC = port.peekChar();
+                        if (hexC >= '0' && hexC <= '9') {
+                            port.readChar();
+                            nb = nb * 16 + hexC.charCodeAt(0) - '0'.charCodeAt(0);
+                        } else if (hexC >= 'a' && hexC <= 'f') {
+                            port.readChar();
+                            nb = nb * 16 + hexC.charCodeAt(0) - 'a'.charCodeAt(0);
+                        } else if (hexC >= 'A' && hexC <= 'F') {
+                            port.readChar();
+                            nb = nb * 16 + hexC.charCodeAt(0) - 'A'.charCodeAt(0);
+                        } else {
+                            // next char isn't part of hex.
+                            res += String.fromCharCode(nb);
+                            break;
+                        }
+                    }
+                    break;
+                default:
+                    if (tmp === SC_EOF_OBJECT) {
+                        return new sc_Token(13/*ERROR*/, "unclosed string-literal" + res);
+                    }
+                    res += tmp;
+                }
+                break;
+            default:
+                if (c === SC_EOF_OBJECT) {
+                    return new sc_Token(13/*ERROR*/, "unclosed string-literal" + res);
+                }
+                res += c;
+            }
+        }
+    };
+    function readIdOrNumber(firstChar) {
+        var res = firstChar;
+        while (isIdOrNumberChar(port.peekChar()))
+            res += port.readChar();
+        if (isNaN(res))
+            return new sc_Token(9/*ID*/, res);
+        else
+            return new sc_Token(12/*NUMBER*/, res - 0);
+    };
+    
+    function skipWhitespaceAndComments() {
+        var done = false;
+        while (!done) {
+            done = true;
+            while (isWhitespace(port.peekChar()))
+                port.readChar();
+            if (port.peekChar() === ';') {
+                port.readChar();
+                done = false;
+                while (true) {
+                    curChar = port.readChar();
+                    if (curChar === SC_EOF_OBJECT ||
+                        curChar === '\n')
+                        break;
+                }
+            }
+        }
+    };
+    
+    function readDot() {
+        if (isWhitespace(port.peekChar()))
+            return new sc_Token(10/*DOT*/);
+        else
+            return readIdOrNumber(".");
+    };
+
+    function readSharp() {
+        var c = port.readChar();
+        if (isWhitespace(c))
+            return new sc_Token(13/*ERROR*/, "bad #-pattern0.");
+
+        // reference
+        if (isNumberChar(c)) {
+            var nb = c - 0;
+            while (isNumberChar(port.peekChar()))
+                nb = nb*10 + (port.readChar() - 0);
+            switch (port.readChar()) {
+            case '#':
+                return new sc_Token(18/*REFERENCE*/, nb);
+            case '=':
+                return new sc_Token(19/*STORE*/, nb);
+            default:
+                return new sc_Token(13/*ERROR*/, "bad #-pattern1." + nb);
+            }
+        }
+
+        if (c === "(")
+            return new sc_Token(14/*VECTOR_BEGIN*/);
+        
+        if (c === "\\") { // character
+            var tmp = ""
+            while (!isWhitespaceOrEOF(port.peekChar()))
+                tmp += port.readChar();
+            switch (tmp.length) {
+            case 0: // it's escaping a whitespace char:
+                if (sc_isEOFObject(port.peekChar))
+                    return new sc_Token(13/*ERROR*/, "bad #-pattern2.");
+                else
+                    return new sc_Token(20/*CHAR*/, port.readChar());
+            case 1:
+                return new sc_Token(20/*CHAR*/, tmp);
+            default:
+                var entry = sc_Char.readable2char[tmp.toLowerCase()];
+                if (entry)
+                    return new sc_Token(20/*CHAR*/, entry);
+                else
+                    return new sc_Token(13/*ERROR*/, "unknown character description: #\\" + tmp);
+            }
+        }
+
+        // some constants (#t, #f, #unspecified)
+        var res;
+        var needing;
+        switch (c) {
+        case 't': res = new sc_Token(15/*TRUE*/, true); needing = ""; break;
+        case 'f': res = new sc_Token(16/*FALSE*/, false); needing = ""; break;
+        case 'u': res = new sc_Token(17/*UNSPECIFIED*/, undefined); needing = "nspecified"; break;
+        default:
+            return new sc_Token(13/*ERROR*/, "bad #-pattern3: " + c);
+        }
+        while(true) {
+            c = port.peekChar();
+            if ((isWhitespaceOrEOF(c) || c === ')') &&
+                needing == "")
+                return res;
+            else if (isWhitespace(c) || needing == "")
+                return new sc_Token(13/*ERROR*/, "bad #-pattern4 " + c + " " + needing);
+            else if (needing.charAt(0) == c) {
+                port.readChar(); // consume
+                needing = needing.slice(1);
+            } else
+                return new sc_Token(13/*ERROR*/, "bad #-pattern5");
+        }
+        
+    };
+
+    skipWhitespaceAndComments();
+    var curChar = port.readChar();
+    if (curChar === SC_EOF_OBJECT)
+        return new sc_Token(0/*EOF*/, curChar);
+    switch (curChar)
+    {
+    case " ":
+    case "\n":
+    case "\t":
+        return readWhitespace();
+    case "(":
+        return new sc_Token(1/*OPEN_PAR*/);
+    case ")":
+        return new sc_Token(2/*CLOSE_PAR*/);
+    case "{":
+        return new sc_Token(3/*OPEN_BRACE*/);
+    case "}":
+        return new sc_Token(4/*CLOSE_BRACE*/);
+    case "[":
+        return new sc_Token(5/*OPEN_BRACKET*/);
+    case "]":
+        return new sc_Token(6/*CLOSE_BRACKET*/);
+    case "'":
+        return new sc_Token(8/*QUOTE*/);
+    case "#":
+        return readSharp();
+    case ".":
+        return readDot();
+    case '"':
+        return readString();
+    default:
+        if (isIdOrNumberChar(curChar))
+            return readIdOrNumber(curChar);
+        throw "unexpected character: " + curChar;
+    }
+};
+
+function sc_Reader(tokenizer) {
+    this.tokenizer = tokenizer;
+    this.backref = new Array();
+}
+sc_Reader.prototype.read = function() {
+    function readList(listBeginType) {
+        function matchesPeer(open, close) {
+            return open === 1/*OPEN_PAR*/ && close === 2/*CLOSE_PAR*/
+                || open === 3/*OPEN_BRACE*/ && close === 4/*CLOSE_BRACE*/
+                || open === 5/*OPEN_BRACKET*/ && close === 6/*CLOSE_BRACKET*/;
+        };
+        var res = null;
+
+        while (true) {
+            var token = tokenizer.peekToken();
+            
+            switch (token.type) {
+            case 2/*CLOSE_PAR*/:
+            case 4/*CLOSE_BRACE*/:
+            case 6/*CLOSE_BRACKET*/:
+                if (matchesPeer(listBeginType, token.type)) {
+                    tokenizer.readToken(); // consume token
+                    return sc_reverseBang(res);
+                } else
+                    throw "closing par doesn't match: " + listBeginType
+                        + " " + listEndType;
+
+            case 0/*EOF*/:
+                throw "unexpected end of file";
+
+            case 10/*DOT*/:
+                tokenizer.readToken(); // consume token
+                var cdr = this.read();
+                var par = tokenizer.readToken();
+                if (!matchesPeer(listBeginType, par.type))
+                    throw "closing par doesn't match: " + listBeginType
+                        + " " + par.type;
+                else
+                    return sc_reverseAppendBang(res, cdr);
+                
+
+            default:
+                res = sc_cons(this.read(), res);
+            }
+        }
+    };
+    function readQuote() {
+        return sc_cons("quote", sc_cons(this.read(), null));
+    };
+    function readVector() {
+        // opening-parenthesis is already consumed
+        var a = new Array();
+        while (true) {
+            var token = tokenizer.peekToken();
+            switch (token.type) {
+            case 2/*CLOSE_PAR*/:
+                tokenizer.readToken();
+                return a;
+                
+            default:
+                a.push(this.read());
+            }
+        }
+    };
+
+    function storeRefence(nb) {
+        var tmp = this.read();
+        this.backref[nb] = tmp;
+        return tmp;
+    };
+        
+    function readReference(nb) {
+        if (nb in this.backref)
+            return this.backref[nb];
+        else
+            throw "bad reference: " + nb;
+    };
+    
+    var tokenizer = this.tokenizer;
+
+    var token = tokenizer.readToken();
+
+    // handle error
+    if (token.type === 13/*ERROR*/)
+        throw token.val;
+    
+    switch (token.type) {
+    case 1/*OPEN_PAR*/:
+    case 3/*OPEN_BRACE*/:
+    case 5/*OPEN_BRACKET*/:
+        return readList.call(this, token.type);
+    case 8/*QUOTE*/:
+        return readQuote.call(this);
+    case 11/*STRING*/:
+        return sc_jsstring2string(token.val);
+    case 20/*CHAR*/:
+        return new sc_Char(token.val);
+    case 14/*VECTOR_BEGIN*/:
+        return readVector.call(this);
+    case 18/*REFERENCE*/:
+        return readReference.call(this, token.val);
+    case 19/*STORE*/:
+        return storeRefence.call(this, token.val);
+    case 9/*ID*/:
+        return sc_jsstring2symbol(token.val);
+    case 0/*EOF*/:
+    case 12/*NUMBER*/:
+    case 15/*TRUE*/:
+    case 16/*FALSE*/:
+    case 17/*UNSPECIFIED*/:
+        return token.val;
+    default:
+        throw "unexpected token " + token.type + " " + token.val;
+    }
+};
+
+/*** META ((export #t)) */
+function sc_read(port) {
+    if (port === undefined) // we assume the port hasn't been given.
+        port = SC_DEFAULT_IN; // THREAD: shared var...
+    var reader = new sc_Reader(new sc_Tokenizer(port));
+    return reader.read();
+}
+/*** META ((export #t)) */
+function sc_readChar(port) {
+    if (port === undefined) // we assume the port hasn't been given.
+        port = SC_DEFAULT_IN; // THREAD: shared var...
+    var t = port.readChar();
+    return t === SC_EOF_OBJECT? t: new sc_Char(t);
+}
+/*** META ((export #t)) */
+function sc_peekChar(port) {
+    if (port === undefined) // we assume the port hasn't been given.
+        port = SC_DEFAULT_IN; // THREAD: shared var...
+    var t = port.peekChar();
+    return t === SC_EOF_OBJECT? t: new sc_Char(t);
+}    
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isCharReady(port) {
+    if (port === undefined) // we assume the port hasn't been given.
+        port = SC_DEFAULT_IN; // THREAD: shared var...
+    return port.isCharReady();
+}
+/*** META ((export #t)
+           (peephole (postfix ".close()")))
+*/
+function sc_closeInputPort(p) {
+    return p.close();
+}
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix " instanceof sc_InputPort")))
+*/
+function sc_isInputPort(o) {
+    return (o instanceof sc_InputPort);
+}
+
+/*** META ((export eof-object?)
+           (type bool)
+           (peephole (postfix " === SC_EOF_OBJECT")))
+*/
+function sc_isEOFObject(o) {
+    return o === SC_EOF_OBJECT;
+}
+
+/*** META ((export #t)
+           (peephole (hole 0 "SC_DEFAULT_IN")))
+*/
+function sc_currentInputPort() {
+    return SC_DEFAULT_IN;
+}
+
+/* ------------ file operations are not supported -----------*/
+/*** META ((export #t)) */
+function sc_callWithInputFile(s, proc) {
+    throw "can't open " + s;
+}
+
+/*** META ((export #t)) */
+function sc_callWithOutputFile(s, proc) {
+    throw "can't open " + s;
+}
+
+/*** META ((export #t)) */
+function sc_withInputFromFile(s, thunk) {
+    throw "can't open " + s;
+}
+
+/*** META ((export #t)) */
+function sc_withOutputToFile(s, thunk) {
+    throw "can't open " + s;
+}
+
+/*** META ((export #t)) */
+function sc_openInputFile(s) {
+    throw "can't open " + s;
+}
+
+/*** META ((export #t)) */
+function sc_openOutputFile(s) {
+    throw "can't open " + s;
+}
+
+/* ----------------------------------------------------------------------------*/
+/*** META ((export #t)) */
+function sc_basename(p) {
+   var i = p.lastIndexOf('/');
+
+   if(i >= 0)
+      return p.substring(i + 1, p.length);
+   else
+      return '';
+}
+
+/*** META ((export #t)) */
+function sc_dirname(p) {
+   var i = p.lastIndexOf('/');
+
+   if(i >= 0)
+      return p.substring(0, i);
+   else
+      return '';
+}
+
+/* ----------------------------------------------------------------------------*/
+
+/*** META ((export #t)) */
+function sc_withInputFromPort(p, thunk) {
+    try {
+        var tmp = SC_DEFAULT_IN; // THREAD: shared var.
+        SC_DEFAULT_IN = p;
+        return thunk();
+    } finally {
+        SC_DEFAULT_IN = tmp;
+    }
+}
+
+/*** META ((export #t)) */
+function sc_withInputFromString(s, thunk) {
+    return sc_withInputFromPort(new sc_StringInputPort(sc_string2jsstring(s)), thunk);
+}
+
+/*** META ((export #t)) */
+function sc_withOutputToPort(p, thunk) {
+    try {
+        var tmp = SC_DEFAULT_OUT; // THREAD: shared var.
+        SC_DEFAULT_OUT = p;
+        return thunk();
+    } finally {
+        SC_DEFAULT_OUT = tmp;
+    }
+}
+
+/*** META ((export #t)) */
+function sc_withOutputToString(thunk) {
+    var p = new sc_StringOutputPort();
+    sc_withOutputToPort(p, thunk);
+    return p.close();
+}
+
+/*** META ((export #t)) */
+function sc_withOutputToProcedure(proc, thunk) {
+    var t = function(s) { proc(sc_jsstring2string(s)); };
+    return sc_withOutputToPort(new sc_GenericOutputPort(t), thunk);
+}
+
+/*** META ((export #t)
+           (peephole (hole 0 "new sc_StringOutputPort()")))
+*/
+function sc_openOutputString() {
+    return new sc_StringOutputPort();
+}
+
+/*** META ((export #t)) */
+function sc_openInputString(str) {
+    return new sc_StringInputPort(sc_string2jsstring(str));
+}
+
+/* ----------------------------------------------------------------------------*/
+
+function sc_OutputPort() {
+}
+sc_OutputPort.prototype = new sc_Port();
+sc_OutputPort.prototype.appendJSString = function(obj) {
+    /* do nothing */
+}
+sc_OutputPort.prototype.close = function() {
+    /* do nothing */
+}
+
+function sc_StringOutputPort() {
+    this.res = "";
+}
+sc_StringOutputPort.prototype = new sc_OutputPort();
+sc_StringOutputPort.prototype.appendJSString = function(s) {
+    this.res += s;
+}
+sc_StringOutputPort.prototype.close = function() {
+    return sc_jsstring2string(this.res);
+}
+
+/*** META ((export #t)) */
+function sc_getOutputString(sp) {
+    return sc_jsstring2string(sp.res);
+}
+    
+
+function sc_ErrorOutputPort() {
+}
+sc_ErrorOutputPort.prototype = new sc_OutputPort();
+sc_ErrorOutputPort.prototype.appendJSString = function(s) {
+    throw "don't write on ErrorPort!";
+}
+sc_ErrorOutputPort.prototype.close = function() {
+    /* do nothing */
+}
+
+function sc_GenericOutputPort(appendJSString, close) {
+    this.appendJSString = appendJSString;
+    if (close)
+        this.close = close;
+}
+sc_GenericOutputPort.prototype = new sc_OutputPort();
+
+/*** META ((export #t)
+           (type bool)
+           (peephole (postfix " instanceof sc_OutputPort")))
+*/
+function sc_isOutputPort(o) {
+    return (o instanceof sc_OutputPort);
+}
+
+/*** META ((export #t)
+           (peephole (postfix ".close()")))
+*/
+function sc_closeOutputPort(p) {
+    return p.close();
+}
+
+/* ------------------ write ---------------------------------------------------*/
+
+/*** META ((export #t)) */
+function sc_write(o, p) {
+    if (p === undefined) // we assume not given
+        p = SC_DEFAULT_OUT;
+    p.appendJSString(sc_toWriteString(o));
+}
+
+function sc_toWriteString(o) {
+    if (o === null)
+        return "()";
+    else if (o === true)
+        return "#t";
+    else if (o === false)
+        return "#f";
+    else if (o === undefined)
+        return "#unspecified";
+    else if (typeof o === 'function')
+        return "#<procedure " + sc_hash(o) + ">";
+    else if (o.sc_toWriteString)
+        return o.sc_toWriteString();
+    else
+        return o.toString();
+}
+
+function sc_escapeWriteString(s) {
+    var res = "";
+    var j = 0;
+    for (i = 0; i < s.length; i++) {
+        switch (s.charAt(i)) {
+        case "\0": res += s.substring(j, i) + "\\0"; j = i + 1; break;
+        case "\b": res += s.substring(j, i) + "\\b"; j = i + 1; break;
+        case "\f": res += s.substring(j, i) + "\\f"; j = i + 1; break;
+        case "\n": res += s.substring(j, i) + "\\n"; j = i + 1; break;
+        case "\r": res += s.substring(j, i) + "\\r"; j = i + 1; break;
+        case "\t": res += s.substring(j, i) + "\\t"; j = i + 1; break;
+        case "\v": res += s.substring(j, i) + "\\v"; j = i + 1; break;
+        case '"': res += s.substring(j, i) + '\\"'; j = i + 1; break;
+        case "\\": res += s.substring(j, i) + "\\\\"; j = i + 1; break;
+        default:
+            var c = s.charAt(i);
+            if ("\a" !== "a" && c == "\a") {
+                res += s.substring(j, i) + "\\a"; j = i + 1; continue;
+            }
+            if ("\v" !== "v" && c == "\v") {
+                res += s.substring(j, i) + "\\v"; j = i + 1; continue;
+            }
+            //if (s.charAt(i) < ' ' || s.charCodeAt(i) > 127) {
+            // CARE: Manuel is this OK with HOP?
+            if (s.charAt(i) < ' ') {
+                /* non printable character and special chars */
+                res += s.substring(j, i) + "\\x" + s.charCodeAt(i).toString(16);
+                j = i + 1;
+            }
+            // else just let i increase...
+        }
+    }
+    res += s.substring(j, i);
+    return res;
+}
+
+/* ------------------ display ---------------------------------------------------*/
+
+/*** META ((export #t)) */
+function sc_display(o, p) {
+    if (p === undefined) // we assume not given
+        p = SC_DEFAULT_OUT;
+    p.appendJSString(sc_toDisplayString(o));
+}
+
+function sc_toDisplayString(o) {
+    if (o === null)
+        return "()";
+    else if (o === true)
+        return "#t";
+    else if (o === false)
+        return "#f";
+    else if (o === undefined)
+        return "#unspecified";
+    else if (typeof o === 'function')
+        return "#<procedure " + sc_hash(o) + ">";
+    else if (o.sc_toDisplayString)
+        return o.sc_toDisplayString();
+    else
+        return o.toString();
+}
+
+/* ------------------ newline ---------------------------------------------------*/
+
+/*** META ((export #t)) */
+function sc_newline(p) {
+    if (p === undefined) // we assume not given
+        p = SC_DEFAULT_OUT;
+    p.appendJSString("\n");
+}
+    
+/* ------------------ write-char ---------------------------------------------------*/
+
+/*** META ((export #t)) */
+function sc_writeChar(c, p) {
+    if (p === undefined) // we assume not given
+        p = SC_DEFAULT_OUT;
+    p.appendJSString(c.val);
+}
+
+/* ------------------ write-circle ---------------------------------------------------*/
+
+/*** META ((export #t)) */
+function sc_writeCircle(o, p) {
+    if (p === undefined) // we assume not given
+        p = SC_DEFAULT_OUT;
+    p.appendJSString(sc_toWriteCircleString(o));
+}
+
+function sc_toWriteCircleString(o) {
+    var symb = sc_gensym("writeCircle");
+    var nbPointer = new Object();
+    nbPointer.nb = 0;
+    sc_prepWriteCircle(o, symb, nbPointer);
+    return sc_genToWriteCircleString(o, symb);
+}
+
+function sc_prepWriteCircle(o, symb, nbPointer) {
+    // TODO sc_Struct
+    if (o instanceof sc_Pair ||
+        o instanceof sc_Vector) {
+        if (o[symb] !== undefined) {
+            // not the first visit.
+            o[symb]++;
+            // unless there is already a number, assign one.
+            if (!o[symb + "nb"]) o[symb + "nb"] = nbPointer.nb++;
+            return;
+        }
+        o[symb] = 0;
+        if (o instanceof sc_Pair) {
+            sc_prepWriteCircle(o.car, symb, nbPointer);
+            sc_prepWriteCircle(o.cdr, symb, nbPointer);
+        } else {
+            for (var i = 0; i < o.length; i++)
+                sc_prepWriteCircle(o[i], symb, nbPointer);
+        }
+    }
+}
+
+function sc_genToWriteCircleString(o, symb) {
+    if (!(o instanceof sc_Pair ||
+          o instanceof sc_Vector))
+        return sc_toWriteString(o);
+    return o.sc_toWriteCircleString(symb);
+}
+sc_Pair.prototype.sc_toWriteCircleString = function(symb, inList) {
+    if (this[symb + "use"]) { // use-flag is set. Just use it.
+        var nb = this[symb + "nb"];
+        if (this[symb]-- === 0) { // if we are the last use. remove all fields.
+            delete this[symb];
+            delete this[symb + "nb"];
+            delete this[symb + "use"];
+        }
+        if (inList)
+            return '. #' + nb + '#';
+        else
+            return '#' + nb + '#';
+    }
+    if (this[symb]-- === 0) { // if we are the last use. remove all fields.
+        delete this[symb];
+        delete this[symb + "nb"];
+        delete this[symb + "use"];
+    }
+
+    var res = "";
+    
+    if (this[symb] !== undefined) { // implies > 0
+        this[symb + "use"] = true;
+        if (inList)
+            res += '. #' + this[symb + "nb"] + '=';
+        else
+            res += '#' + this[symb + "nb"] + '=';
+        inList = false;
+    }
+
+    if (!inList)
+        res += "(";
+    
+    // print car
+    res += sc_genToWriteCircleString(this.car, symb);
+    
+    if (sc_isPair(this.cdr)) {
+        res += " " + this.cdr.sc_toWriteCircleString(symb, true);
+    } else if (this.cdr !== null) {
+        res += " . " + sc_genToWriteCircleString(this.cdr, symb);
+    }
+    if (!inList)
+        res += ")";
+    return res;
+};
+sc_Vector.prototype.sc_toWriteCircleString = function(symb) {
+    if (this[symb + "use"]) { // use-flag is set. Just use it.
+        var nb = this[symb + "nb"];
+        if (this[symb]-- === 0) { // if we are the last use. remove all fields.
+            delete this[symb];
+            delete this[symb + "nb"];
+            delete this[symb + "use"];
+        }
+        return '#' + nb + '#';
+    }
+    if (this[symb]-- === 0) { // if we are the last use. remove all fields.
+        delete this[symb];
+        delete this[symb + "nb"];
+        delete this[symb + "use"];
+    }
+
+    var res = "";
+    if (this[symb] !== undefined) { // implies > 0
+        this[symb + "use"] = true;
+        res += '#' + this[symb + "nb"] + '=';
+    }
+    res += "#(";
+    for (var i = 0; i < this.length; i++) {
+        res += sc_genToWriteCircleString(this[i], symb);
+        if (i < this.length - 1) res += " ";
+    }
+    res += ")";
+    return res;
+};
+
+
+/* ------------------ print ---------------------------------------------------*/
+
+/*** META ((export #t)) */
+function sc_print(s) {
+    if (arguments.length === 1) {
+        sc_display(s);
+        sc_newline();
+    }
+    else {
+        for (var i = 0; i < arguments.length; i++)
+            sc_display(arguments[i]);
+        sc_newline();
+    }
+}
+
+/* ------------------ format ---------------------------------------------------*/
+/*** META ((export #t)) */
+function sc_format(s, args) {
+   var len = s.length;
+   var p = new sc_StringOutputPort();
+   var i = 0, j = 1;
+
+   while( i < len ) {
+      var i2 = s.indexOf("~", i);
+
+      if (i2 == -1) {
+          p.appendJSString( s.substring( i, len ) );
+          return p.close();
+      } else {
+         if (i2 > i) {
+            if (i2 == (len - 1)) {
+                p.appendJSString(s.substring(i, len));
+                return p.close();
+            } else {
+               p.appendJSString(s.substring(i, i2));
+               i = i2;
+            }
+         }
+
+         switch(s.charCodeAt(i2 + 1)) {
+            case 65:
+            case 97:
+               // a
+               sc_display(arguments[j], p);
+               i += 2; j++;
+               break;
+
+            case 83:
+            case 115:
+               // s
+               sc_write(arguments[j], p);
+               i += 2; j++;
+               break;
+
+            case 86:
+            case 118:
+               // v
+               sc_display(arguments[j], p);
+               p.appendJSString("\n");
+               i += 2; j++;
+               break;
+
+            case 67:
+            case 99:
+               // c
+               p.appendJSString(String.fromCharCode(arguments[j]));
+               i += 2; j++;
+               break;
+
+            case 88:
+            case 120:
+               // x
+               p.appendJSString(arguments[j].toString(6));
+               i += 2; j++;
+               break;
+
+            case 79:
+            case 111:
+               // o
+               p.appendJSString(arguments[j].toString(8));
+               i += 2; j++;
+               break;
+
+            case 66:
+            case 98:
+               // b
+               p.appendJSString(arguments[j].toString(2));
+               i += 2; j++;
+               break;
+               
+            case 37:
+            case 110:
+               // %, n
+               p.appendJSString("\n");
+               i += 2; break;
+
+            case 114:
+               // r
+               p.appendJSString("\r");
+               i += 2; break;
+
+            case 126:
+               // ~
+               p.appendJSString("~");
+               i += 2; break;
+
+            default:
+               sc_error( "format: illegal ~"
+                         + String.fromCharCode(s.charCodeAt(i2 + 1))
+                         + " sequence" );
+               return "";
+         }
+      }
+   }
+
+   return p.close();
+}
+
+/* ------------------ global ports ---------------------------------------------------*/
+
+var SC_DEFAULT_IN = new sc_ErrorInputPort();
+var SC_DEFAULT_OUT = new sc_ErrorOutputPort();
+var SC_ERROR_OUT = new sc_ErrorOutputPort();
+
+var sc_SYMBOL_PREFIX = "\u1E9C";
+var sc_KEYWORD_PREFIX = "\u1E9D";
+
+/*** META ((export #t)
+           (peephole (id))) */
+function sc_jsstring2string(s) {
+    return s;
+}
+
+/*** META ((export #t)
+           (peephole (prefix "'\\u1E9C' +")))
+*/
+function sc_jsstring2symbol(s) {
+    return sc_SYMBOL_PREFIX + s;
+}
+
+/*** META ((export #t)
+           (peephole (id)))
+*/
+function sc_string2jsstring(s) {
+    return s;
+}
+
+/*** META ((export #t)
+           (peephole (symbol2jsstring_immutable)))
+*/
+function sc_symbol2jsstring(s) {
+    return s.slice(1);
+}
+
+/*** META ((export #t)
+           (peephole (postfix ".slice(1)")))
+*/
+function sc_keyword2jsstring(k) {
+    return k.slice(1);
+}
+
+/*** META ((export #t)
+           (peephole (prefix "'\\u1E9D' +")))
+*/
+function sc_jsstring2keyword(s) {
+    return sc_KEYWORD_PREFIX + s;
+}
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isKeyword(s) {
+    return (typeof s === "string") &&
+        (s.charAt(0) === sc_KEYWORD_PREFIX);
+}
+
+
+/*** META ((export #t)) */
+var sc_gensym = function() {
+    var counter = 1000;
+    return function(sym) {
+        counter++;
+        if (!sym) sym = sc_SYMBOL_PREFIX;
+        return sym + "s" + counter + "~" + "^sC-GeNsYm ";
+    };
+}();
+
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isEqual(o1, o2) {
+    return ((o1 === o2) ||
+            (sc_isPair(o1) && sc_isPair(o2)
+             && sc_isPairEqual(o1, o2, sc_isEqual)) ||
+            (sc_isVector(o1) && sc_isVector(o2)
+             && sc_isVectorEqual(o1, o2, sc_isEqual)));
+}
+
+/*** META ((export number->symbol integer->symbol)) */
+function sc_number2symbol(x, radix) {
+    return sc_SYMBOL_PREFIX + sc_number2jsstring(x, radix);
+}
+    
+/*** META ((export number->string integer->string)) */
+var sc_number2string = sc_number2jsstring;
+
+/*** META ((export #t)) */
+function sc_symbol2number(s, radix) {
+    return sc_jsstring2number(s.slice(1), radix);
+}
+
+/*** META ((export #t)) */
+var sc_string2number = sc_jsstring2number;
+
+/*** META ((export #t)
+           (peephole (prefix "+" s)))
+           ;; peephole will only apply if no radix is given.
+*/
+function sc_string2integer(s, radix) {
+    if (!radix) return +s;
+    return parseInt(s, radix);
+}
+
+/*** META ((export #t)
+           (peephole (prefix "+")))
+*/
+function sc_string2real(s) {
+    return +s;
+}
+
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isSymbol(s) {
+    return (typeof s === "string") &&
+        (s.charAt(0) === sc_SYMBOL_PREFIX);
+}
+
+/*** META ((export #t)
+           (peephole (symbol2string_immutable)))
+*/
+function sc_symbol2string(s) {
+    return s.slice(1);
+}
+
+/*** META ((export #t)
+           (peephole (prefix "'\\u1E9C' +")))
+*/
+function sc_string2symbol(s) {
+    return sc_SYMBOL_PREFIX + s;
+}
+
+/*** META ((export symbol-append)
+           (peephole (symbolAppend_immutable)))
+*/
+function sc_symbolAppend() {
+    var res = sc_SYMBOL_PREFIX;
+    for (var i = 0; i < arguments.length; i++)
+        res += arguments[i].slice(1);
+    return res;
+}
+
+/*** META ((export #t)
+           (peephole (postfix ".val")))
+*/
+function sc_char2string(c) { return c.val; }
+
+/*** META ((export #t)
+           (peephole (hole 1 "'\\u1E9C' + " c ".val")))
+*/
+function sc_char2symbol(c) { return sc_SYMBOL_PREFIX + c.val; }
+
+/*** META ((export #t)
+           (type bool))
+*/
+function sc_isString(s) {
+    return (typeof s === "string") &&
+        (s.charAt(0) !== sc_SYMBOL_PREFIX);
+}
+
+/*** META ((export #t)) */
+var sc_makeString = sc_makejsString;
+
+
+/*** META ((export #t)) */
+function sc_string() {
+    for (var i = 0; i < arguments.length; i++)
+        arguments[i] = arguments[i].val;
+    return "".concat.apply("", arguments);
+}
+
+/*** META ((export #t)
+           (peephole (postfix ".length")))
+*/
+function sc_stringLength(s) { return s.length; }
+
+/*** META ((export #t)) */
+function sc_stringRef(s, k) {
+    return new sc_Char(s.charAt(k));
+}
+
+/* there's no stringSet in the immutable version
+function sc_stringSet(s, k, c)
+*/
+
+
+/*** META ((export string=?)
+           (type bool)
+           (peephole (hole 2 str1 " === " str2)))
+*/
+function sc_isStringEqual(s1, s2) {
+    return s1 === s2;
+}
+/*** META ((export string<?)
+           (type bool)
+           (peephole (hole 2 str1 " < " str2)))
+*/
+function sc_isStringLess(s1, s2) {
+    return s1 < s2;
+}
+/*** META ((export string>?)
+           (type bool)
+           (peephole (hole 2 str1 " > " str2)))
+*/
+function sc_isStringGreater(s1, s2) {
+    return s1 > s2;
+}
+/*** META ((export string<=?)
+           (type bool)
+           (peephole (hole 2 str1 " <= " str2)))
+*/
+function sc_isStringLessEqual(s1, s2) {
+    return s1 <= s2;
+}
+/*** META ((export string>=?)
+           (type bool)
+           (peephole (hole 2 str1 " >= " str2)))
+*/
+function sc_isStringGreaterEqual(s1, s2) {
+    return s1 >= s2;
+}
+/*** META ((export string-ci=?)
+           (type bool)
+           (peephole (hole 2 str1 ".toLowerCase() === " str2 ".toLowerCase()")))
+*/
+function sc_isStringCIEqual(s1, s2) {
+    return s1.toLowerCase() === s2.toLowerCase();
+}
+/*** META ((export string-ci<?)
+           (type bool)
+           (peephole (hole 2 str1 ".toLowerCase() < " str2 ".toLowerCase()")))
+*/
+function sc_isStringCILess(s1, s2) {
+    return s1.toLowerCase() < s2.toLowerCase();
+}
+/*** META ((export string-ci>?)
+           (type bool)
+           (peephole (hole 2 str1 ".toLowerCase() > " str2 ".toLowerCase()")))
+*/
+function sc_isStringCIGreater(s1, s2) {
+    return s1.toLowerCase() > s2.toLowerCase();
+}
+/*** META ((export string-ci<=?)
+           (type bool)
+           (peephole (hole 2 str1 ".toLowerCase() <= " str2 ".toLowerCase()")))
+*/
+function sc_isStringCILessEqual(s1, s2) {
+    return s1.toLowerCase() <= s2.toLowerCase();
+}
+/*** META ((export string-ci>=?)
+           (type bool)
+           (peephole (hole 2 str1 ".toLowerCase() >= " str2 ".toLowerCase()")))
+*/
+function sc_isStringCIGreaterEqual(s1, s2) {
+    return s1.toLowerCase() >= s2.toLowerCase();
+}
+
+/*** META ((export #t)
+           (peephole (hole 3 s ".substring(" start ", " end ")")))
+*/
+function sc_substring(s, start, end) {
+    return s.substring(start, end);
+}
+
+/*** META ((export #t))
+*/
+function sc_isSubstring_at(s1, s2, i) {
+    return s2 == s1.substring(i, i+ s2.length);
+}
+
+/*** META ((export #t)
+           (peephole (infix 0 #f "+" "''")))
+*/
+function sc_stringAppend() {
+    return "".concat.apply("", arguments);
+}
+
+/*** META ((export #t)) */
+var sc_string2list = sc_jsstring2list;
+
+/*** META ((export #t)) */
+var sc_list2string = sc_list2jsstring;
+
+/*** META ((export #t)
+           (peephole (id)))
+*/
+function sc_stringCopy(s) {
+    return s;
+}
+
+/* there's no string-fill in the immutable version
+function sc_stringFill(s, c)
+*/
+
+/*** META ((export #t)
+           (peephole (postfix ".slice(1)")))
+*/
+function sc_keyword2string(o) {
+    return o.slice(1);
+}
+
+/*** META ((export #t)
+           (peephole (prefix "'\\u1E9D' +")))
+*/
+function sc_string2keyword(o) {
+    return sc_KEYWORD_PREFIX + o;
+}
+
+String.prototype.sc_toDisplayString = function() {
+    if (this.charAt(0) === sc_SYMBOL_PREFIX)
+        // TODO: care for symbols with spaces (escape-chars symbols).
+        return this.slice(1);
+    else if (this.charAt(0) === sc_KEYWORD_PREFIX)
+        return ":" + this.slice(1);
+    else
+        return this.toString();
+};
+
+String.prototype.sc_toWriteString = function() {
+    if (this.charAt(0) === sc_SYMBOL_PREFIX)
+        // TODO: care for symbols with spaces (escape-chars symbols).
+        return this.slice(1);
+    else if (this.charAt(0) === sc_KEYWORD_PREFIX)
+        return ":" + this.slice(1);
+    else
+        return '"' + sc_escapeWriteString(this) + '"';
+};
+/* Exported Variables */
+var BgL_testzd2boyerzd2;
+var BgL_nboyerzd2benchmarkzd2;
+var BgL_setupzd2boyerzd2;
+/* End Exports */
+
+var translate_term_nboyer;
+var translate_args_nboyer;
+var untranslate_term_nboyer;
+var BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer;
+var BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer;
+var translate_alist_nboyer;
+var apply_subst_nboyer;
+var apply_subst_lst_nboyer;
+var tautologyp_nboyer;
+var if_constructor_nboyer;
+var rewrite_count_nboyer;
+var rewrite_nboyer;
+var rewrite_args_nboyer;
+var unify_subst_nboyer;
+var one_way_unify1_nboyer;
+var false_term_nboyer;
+var true_term_nboyer;
+var trans_of_implies1_nboyer;
+var is_term_equal_nboyer;
+var is_term_member_nboyer;
+var const_nboyer;
+var sc_const_3_nboyer;
+var sc_const_4_nboyer;
+{
+    (sc_const_4_nboyer = (new sc_Pair("\u1E9Cimplies",(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cz",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cz",(new sc_Pair("\u1E9Cu",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cu",(new sc_Pair("\u1E9Cw",null)))))),null)))))),null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cw",null)))))),null)))))));
+    (sc_const_3_nboyer = sc_list((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ccompile",(new sc_Pair("\u1E9Cform",null)))),(new sc_Pair((new sc_Pair("\u1E9Creverse",(new sc_Pair((new sc_Pair("\u1E9Ccodegen",(new sc_Pair((new sc_Pair("\u1E9Coptimize",(new sc_Pair("\u1E9Cform",null)))),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ceqp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cy",null)))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cgreaterp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Clesseqp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cgreatereqp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cnot",(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cboolean",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cor",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Ct",null)),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cf",null)),null)))))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ciff",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cand",(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cimplies",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ceven1",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Ct",null)),(new sc_Pair((new sc_Pair("\u1E9Codd",(new sc_Pair((new sc_Pair("\u1E9Csub1",(new sc_Pair("\u1E9Cx",null)))),null)))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ccountps-",(new sc_Pair("\u1E9Cl",(new sc_Pair("\u1E9Cpred",null)))))),(new sc_Pair((new sc_Pair("\u1E9Ccountps-loop",(new sc_Pair("\u1E9Cl",(new sc_Pair("\u1E9Cpred",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cfact-",(new sc_Pair("\u1E9Ci",null)))),(new sc_Pair((new sc_Pair("\u1E9Cfact-loop",(new sc_Pair("\u1E9Ci",(new sc_Pair((1),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Creverse-",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Creverse-loop",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cdivides",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair((new sc_Pair("\u1E9Cremainder",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),null)))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cassume-true",(new sc_Pair("\u1E9Cvar",(new sc_Pair("\u1E9Calist",null)))))),(new sc_Pair((new sc_Pair("\u1E9Ccons",(new sc_Pair((new 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sc_Pair("\u1E9Cdifference",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cdifference",(new sc_Pair("\u1E9Cz",(new sc_Pair("\u1E9Cy",null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Clessp",(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("\u1E9Cz",null)))))),null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cz",(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)))),(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cz",null)))),null)))))),null)))))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cmeaning",(new sc_Pair((new sc_Pair("\u1E9Cplus-tree",(new sc_Pair((new sc_Pair("\u1E9Cdelete",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),null)))),(new sc_Pair("\u1E9Ca",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Cmember",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cdifference",(new sc_Pair((new sc_Pair("\u1E9Cmeaning",(new sc_Pair((new sc_Pair("\u1E9Cplus-tree",(new sc_Pair("\u1E9Cy",null)))),(new sc_Pair("\u1E9Ca",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cmeaning",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Ca",null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cmeaning",(new sc_Pair((new sc_Pair("\u1E9Cplus-tree",(new sc_Pair("\u1E9Cy",null)))),(new sc_Pair("\u1E9Ca",null)))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ctimes",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cadd1",(new sc_Pair("\u1E9Cy",null)))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Cnumberp",(new sc_Pair("\u1E9Cy",null)))),(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Ctimes",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cx",null)))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cnth",(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),(new sc_Pair("\u1E9Ci",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Ci",null)))),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Clast",(new sc_Pair((new sc_Pair("\u1E9Cappend",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Clistp",(new sc_Pair("\u1E9Cb",null)))),(new sc_Pair((new sc_Pair("\u1E9Clast",(new sc_Pair("\u1E9Cb",null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Clistp",(new sc_Pair("\u1E9Ca",null)))),(new sc_Pair((new sc_Pair("\u1E9Ccons",(new sc_Pair((new sc_Pair("\u1E9Ccar",(new sc_Pair((new sc_Pair("\u1E9Clast",(new sc_Pair("\u1E9Ca",null)))),null)))),(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair("\u1E9Cb",null)))))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair("\u1E9Cz",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Clessp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ct",null)),(new sc_Pair("\u1E9Cz",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cf",null)),(new sc_Pair("\u1E9Cz",null)))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cassignment",(new sc_Pair("\u1E9Cx",(new sc_Pair((new sc_Pair("\u1E9Cappend",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Cassignedp",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Ca",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cassignment",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Ca",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cassignment",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cb",null)))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Ccar",(new sc_Pair((new sc_Pair("\u1E9Cgopher",(new sc_Pair("\u1E9Cx",null)))),null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Clistp",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Ccar",(new sc_Pair((new sc_Pair("\u1E9Cflatten",(new sc_Pair("\u1E9Cx",null)))),null)))),(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cflatten",(new sc_Pair((new sc_Pair("\u1E9Ccdr",(new sc_Pair((new sc_Pair("\u1E9Cgopher",(new sc_Pair("\u1E9Cx",null)))),null)))),null)))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Clistp",(new sc_Pair("\u1E9Cx",null)))),(new sc_Pair((new sc_Pair("\u1E9Ccdr",(new sc_Pair((new sc_Pair("\u1E9Cflatten",(new sc_Pair("\u1E9Cx",null)))),null)))),(new sc_Pair((new sc_Pair("\u1E9Ccons",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cquotient",(new sc_Pair((new sc_Pair("\u1E9Ctimes",(new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cx",null)))))),(new sc_Pair("\u1E9Cy",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Czerop",(new sc_Pair("\u1E9Cy",null)))),(new sc_Pair((new sc_Pair("\u1E9Czero",null)),(new sc_Pair((new sc_Pair("\u1E9Cfix",(new sc_Pair("\u1E9Cx",null)))),null)))))))),null)))))), (new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cget",(new sc_Pair("\u1E9Cj",(new sc_Pair((new sc_Pair("\u1E9Cset",(new sc_Pair("\u1E9Ci",(new sc_Pair("\u1E9Cval",(new sc_Pair("\u1E9Cmem",null)))))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cif",(new sc_Pair((new sc_Pair("\u1E9Ceqp",(new sc_Pair("\u1E9Cj",(new sc_Pair("\u1E9Ci",null)))))),(new sc_Pair("\u1E9Cval",(new sc_Pair((new sc_Pair("\u1E9Cget",(new sc_Pair("\u1E9Cj",(new sc_Pair("\u1E9Cmem",null)))))),null)))))))),null))))))));
+    (const_nboyer = (new sc_Pair((new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cf",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Cc",(new sc_Pair((new sc_Pair("\u1E9Czero",null)),null)))))),null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cy",(new sc_Pair("\u1E9Cf",(new sc_Pair((new sc_Pair("\u1E9Ctimes",(new sc_Pair((new sc_Pair("\u1E9Ctimes",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Cc",(new sc_Pair("\u1E9Cd",null)))))),null)))))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cz",(new sc_Pair("\u1E9Cf",(new sc_Pair((new sc_Pair("\u1E9Creverse",(new sc_Pair((new sc_Pair("\u1E9Cappend",(new sc_Pair((new sc_Pair("\u1E9Cappend",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cnil",null)),null)))))),null)))),null)))))),(new sc_Pair((new sc_Pair("\u1E9Cu",(new sc_Pair("\u1E9Cequal",(new sc_Pair((new sc_Pair("\u1E9Cplus",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cdifference",(new sc_Pair("\u1E9Cx",(new sc_Pair("\u1E9Cy",null)))))),null)))))))),(new sc_Pair((new sc_Pair("\u1E9Cw",(new sc_Pair("\u1E9Clessp",(new sc_Pair((new sc_Pair("\u1E9Cremainder",(new sc_Pair("\u1E9Ca",(new sc_Pair("\u1E9Cb",null)))))),(new sc_Pair((new sc_Pair("\u1E9Cmember",(new sc_Pair("\u1E9Ca",(new sc_Pair((new sc_Pair("\u1E9Clength",(new sc_Pair("\u1E9Cb",null)))),null)))))),null)))))))),null)))))))))));
+    BgL_nboyerzd2benchmarkzd2 = function() {
+        var args = null;
+        for (var sc_tmp = arguments.length - 1; sc_tmp >= 0; sc_tmp--) {
+            args = sc_cons(arguments[sc_tmp], args);
+        }
+        var n;
+        return ((n = ((args === null)?(0):(args.car))), (BgL_setupzd2boyerzd2()), (BgL_runzd2benchmarkzd2(("nboyer"+(sc_number2string(n))), (1), function() {
+            return (BgL_testzd2boyerzd2(n));
+        }, function(rewrites) {
+            if ((sc_isNumber(rewrites)))
+                switch (n) {
+                case (0):
+                    return (rewrites===(95024));
+                    break;
+                case (1):
+                    return (rewrites===(591777));
+                    break;
+                case (2):
+                    return (rewrites===(1813975));
+                    break;
+                case (3):
+                    return (rewrites===(5375678));
+                    break;
+                case (4):
+                    return (rewrites===(16445406));
+                    break;
+                case (5):
+                    return (rewrites===(51507739));
+                    break;
+                default:
+                    return true;
+                    break;
+                }
+            else
+                return false;
+        })));
+    };
+    BgL_setupzd2boyerzd2 = function() {
+        return true;
+    };
+    BgL_testzd2boyerzd2 = function() {
+        return true;
+    };
+    translate_term_nboyer = function(term) {
+        var lst;
+        return (!(term instanceof sc_Pair)?term:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((term.car))), ((lst = (term.cdr)), ((lst === null)?null:(new sc_Pair((translate_term_nboyer((lst.car))), (translate_args_nboyer((lst.cdr))))))))));
+    };
+    translate_args_nboyer = function(lst) {
+        var sc_lst_5;
+        var term;
+        return ((lst === null)?null:(new sc_Pair(((term = (lst.car)), (!(term instanceof sc_Pair)?term:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((term.car))), (translate_args_nboyer((term.cdr))))))), ((sc_lst_5 = (lst.cdr)), ((sc_lst_5 === null)?null:(new sc_Pair((translate_term_nboyer((sc_lst_5.car))), (translate_args_nboyer((sc_lst_5.cdr))))))))));
+    };
+    untranslate_term_nboyer = function(term) {
+        var optrOpnd;
+        var tail1131;
+        var L1127;
+        var falseHead1130;
+        var symbol_record;
+        if (!(term instanceof sc_Pair))
+            return term;
+        else
+            {
+                (falseHead1130 = (new sc_Pair(null, null)));
+                (L1127 = (term.cdr));
+                (tail1131 = falseHead1130);
+                while (!(L1127 === null)) {
+                    {
+                        (tail1131.cdr = (new sc_Pair((untranslate_term_nboyer((L1127.car))), null)));
+                        (tail1131 = (tail1131.cdr));
+                        (L1127 = (L1127.cdr));
+                    }
+                }
+                (optrOpnd = (falseHead1130.cdr));
+                return (new sc_Pair(((symbol_record = (term.car)), (symbol_record[(0)])), optrOpnd));
+            }
+    };
+    BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer = function(sym) {
+        var r;
+        var x;
+        return ((x = (sc_assq(sym, BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer))), ((x!== false)?(x.cdr):((r = [sym, null]), (BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer = (new sc_Pair((new sc_Pair(sym, r)), BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer))), r)));
+    };
+    (BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer = null);
+    translate_alist_nboyer = function(alist) {
+        var sc_alist_6;
+        var term;
+        return ((alist === null)?null:(new sc_Pair((new sc_Pair((alist.car.car), ((term = (alist.car.cdr)), (!(term instanceof sc_Pair)?term:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((term.car))), (translate_args_nboyer((term.cdr))))))))), ((sc_alist_6 = (alist.cdr)), ((sc_alist_6 === null)?null:(new sc_Pair((new sc_Pair((sc_alist_6.car.car), (translate_term_nboyer((sc_alist_6.car.cdr))))), (translate_alist_nboyer((sc_alist_6.cdr))))))))));
+    };
+    apply_subst_nboyer = function(alist, term) {
+        var lst;
+        var temp_temp;
+        return (!(term instanceof sc_Pair)?((temp_temp = (sc_assq(term, alist))), ((temp_temp!== false)?(temp_temp.cdr):term)):(new sc_Pair((term.car), ((lst = (term.cdr)), ((lst === null)?null:(new sc_Pair((apply_subst_nboyer(alist, (lst.car))), (apply_subst_lst_nboyer(alist, (lst.cdr))))))))));
+    };
+    apply_subst_lst_nboyer = function(alist, lst) {
+        var sc_lst_7;
+        return ((lst === null)?null:(new sc_Pair((apply_subst_nboyer(alist, (lst.car))), ((sc_lst_7 = (lst.cdr)), ((sc_lst_7 === null)?null:(new sc_Pair((apply_subst_nboyer(alist, (sc_lst_7.car))), (apply_subst_lst_nboyer(alist, (sc_lst_7.cdr))))))))));
+    };
+    tautologyp_nboyer = function(sc_x_11, true_lst, false_lst) {
+        var tmp1125;
+        var x;
+        var tmp1126;
+        var sc_x_8;
+        var sc_tmp1125_9;
+        var sc_tmp1126_10;
+        var sc_x_11;
+        var true_lst;
+        var false_lst;
+        while (true) {
+            if ((((sc_tmp1126_10 = (is_term_equal_nboyer(sc_x_11, true_term_nboyer))), ((sc_tmp1126_10!== false)?sc_tmp1126_10:(is_term_member_nboyer(sc_x_11, true_lst))))!== false))
+                return true;
+            else
+                if ((((sc_tmp1125_9 = (is_term_equal_nboyer(sc_x_11, false_term_nboyer))), ((sc_tmp1125_9!== false)?sc_tmp1125_9:(is_term_member_nboyer(sc_x_11, false_lst))))!== false))
+                    return false;
+                else
+                    if (!(sc_x_11 instanceof sc_Pair))
+                        return false;
+                    else
+                        if (((sc_x_11.car)===if_constructor_nboyer))
+                            if ((((sc_x_8 = (sc_x_11.cdr.car)), (tmp1126 = (is_term_equal_nboyer(sc_x_8, true_term_nboyer))), ((tmp1126!== false)?tmp1126:(is_term_member_nboyer(sc_x_8, true_lst))))!== false))
+                                (sc_x_11 = (sc_x_11.cdr.cdr.car));
+                            else
+                                if ((((x = (sc_x_11.cdr.car)), (tmp1125 = (is_term_equal_nboyer(x, false_term_nboyer))), ((tmp1125!== false)?tmp1125:(is_term_member_nboyer(x, false_lst))))!== false))
+                                    (sc_x_11 = (sc_x_11.cdr.cdr.cdr.car));
+                                else
+                                    if (((tautologyp_nboyer((sc_x_11.cdr.cdr.car), (new sc_Pair((sc_x_11.cdr.car), true_lst)), false_lst))!== false))
+                                        {
+                                            (false_lst = (new sc_Pair((sc_x_11.cdr.car), false_lst)));
+                                            (sc_x_11 = (sc_x_11.cdr.cdr.cdr.car));
+                                        }
+                                    else
+                                        return false;
+                        else
+                            return false;
+        }
+    };
+    (if_constructor_nboyer = "\u1E9C*");
+    (rewrite_count_nboyer = (0));
+    rewrite_nboyer = function(term) {
+        var term2;
+        var sc_term_12;
+        var lst;
+        var symbol_record;
+        var sc_lst_13;
+        {
+            (++rewrite_count_nboyer);
+            if (!(term instanceof sc_Pair))
+                return term;
+            else
+                {
+                    (sc_term_12 = (new sc_Pair((term.car), ((sc_lst_13 = (term.cdr)), ((sc_lst_13 === null)?null:(new sc_Pair((rewrite_nboyer((sc_lst_13.car))), (rewrite_args_nboyer((sc_lst_13.cdr))))))))));
+                    (lst = ((symbol_record = (term.car)), (symbol_record[(1)])));
+                    while (true) {
+                        if ((lst === null))
+                            return sc_term_12;
+                        else
+                            if ((((term2 = ((lst.car).cdr.car)), (unify_subst_nboyer = null), (one_way_unify1_nboyer(sc_term_12, term2)))!== false))
+                                return (rewrite_nboyer((apply_subst_nboyer(unify_subst_nboyer, ((lst.car).cdr.cdr.car)))));
+                            else
+                                (lst = (lst.cdr));
+                    }
+                }
+        }
+    };
+    rewrite_args_nboyer = function(lst) {
+        var sc_lst_14;
+        return ((lst === null)?null:(new sc_Pair((rewrite_nboyer((lst.car))), ((sc_lst_14 = (lst.cdr)), ((sc_lst_14 === null)?null:(new sc_Pair((rewrite_nboyer((sc_lst_14.car))), (rewrite_args_nboyer((sc_lst_14.cdr))))))))));
+    };
+    (unify_subst_nboyer = "\u1E9C*");
+    one_way_unify1_nboyer = function(term1, term2) {
+        var lst1;
+        var lst2;
+        var temp_temp;
+        if (!(term2 instanceof sc_Pair))
+            {
+                (temp_temp = (sc_assq(term2, unify_subst_nboyer)));
+                if ((temp_temp!== false))
+                    return (is_term_equal_nboyer(term1, (temp_temp.cdr)));
+                else
+                    if ((sc_isNumber(term2)))
+                        return (sc_isEqual(term1, term2));
+                    else
+                        {
+                            (unify_subst_nboyer = (new sc_Pair((new sc_Pair(term2, term1)), unify_subst_nboyer)));
+                            return true;
+                        }
+            }
+        else
+            if (!(term1 instanceof sc_Pair))
+                return false;
+            else
+                if (((term1.car)===(term2.car)))
+                    {
+                        (lst1 = (term1.cdr));
+                        (lst2 = (term2.cdr));
+                        while (true) {
+                            if ((lst1 === null))
+                                return (lst2 === null);
+                            else
+                                if ((lst2 === null))
+                                    return false;
+                                else
+                                    if (((one_way_unify1_nboyer((lst1.car), (lst2.car)))!== false))
+                                        {
+                                            (lst1 = (lst1.cdr));
+                                            (lst2 = (lst2.cdr));
+                                        }
+                                    else
+                                        return false;
+                        }
+                    }
+                else
+                    return false;
+    };
+    (false_term_nboyer = "\u1E9C*");
+    (true_term_nboyer = "\u1E9C*");
+    trans_of_implies1_nboyer = function(n) {
+        var sc_n_15;
+        return ((sc_isEqual(n, (1)))?(sc_list("\u1E9Cimplies", (0), (1))):(sc_list("\u1E9Cand", (sc_list("\u1E9Cimplies", (n-(1)), n)), ((sc_n_15 = (n-(1))), ((sc_isEqual(sc_n_15, (1)))?(sc_list("\u1E9Cimplies", (0), (1))):(sc_list("\u1E9Cand", (sc_list("\u1E9Cimplies", (sc_n_15-(1)), sc_n_15)), (trans_of_implies1_nboyer((sc_n_15-(1)))))))))));
+    };
+    is_term_equal_nboyer = function(x, y) {
+        var lst1;
+        var lst2;
+        var r2;
+        var r1;
+        if ((x instanceof sc_Pair))
+            if ((y instanceof sc_Pair))
+                if ((((r1 = (x.car)), (r2 = (y.car)), (r1===r2))!== false))
+                    {
+                        (lst1 = (x.cdr));
+                        (lst2 = (y.cdr));
+                        while (true) {
+                            if ((lst1 === null))
+                                return (lst2 === null);
+                            else
+                                if ((lst2 === null))
+                                    return false;
+                                else
+                                    if (((is_term_equal_nboyer((lst1.car), (lst2.car)))!== false))
+                                        {
+                                            (lst1 = (lst1.cdr));
+                                            (lst2 = (lst2.cdr));
+                                        }
+                                    else
+                                        return false;
+                        }
+                    }
+                else
+                    return false;
+            else
+                return false;
+        else
+            return (sc_isEqual(x, y));
+    };
+    is_term_member_nboyer = function(x, lst) {
+        var x;
+        var lst;
+        while (true) {
+            if ((lst === null))
+                return false;
+            else
+                if (((is_term_equal_nboyer(x, (lst.car)))!== false))
+                    return true;
+                else
+                    (lst = (lst.cdr));
+        }
+    };
+    BgL_setupzd2boyerzd2 = function() {
+        var symbol_record;
+        var value;
+        var BgL_sc_symbolzd2record_16zd2;
+        var sym;
+        var sc_sym_17;
+        var term;
+        var lst;
+        var sc_term_18;
+        var sc_term_19;
+        {
+            (BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer = null);
+            (if_constructor_nboyer = (BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer("\u1E9Cif")));
+            (false_term_nboyer = ((sc_term_19 = (new sc_Pair("\u1E9Cf",null))), (!(sc_term_19 instanceof sc_Pair)?sc_term_19:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((sc_term_19.car))), (translate_args_nboyer((sc_term_19.cdr))))))));
+            (true_term_nboyer = ((sc_term_18 = (new sc_Pair("\u1E9Ct",null))), (!(sc_term_18 instanceof sc_Pair)?sc_term_18:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((sc_term_18.car))), (translate_args_nboyer((sc_term_18.cdr))))))));
+            (lst = sc_const_3_nboyer);
+            while (!(lst === null)) {
+                {
+                    (term = (lst.car));
+                    if (((term instanceof sc_Pair)&&(((term.car)==="\u1E9Cequal")&&((term.cdr.car) instanceof sc_Pair))))
+                        {
+                            (sc_sym_17 = ((term.cdr.car).car));
+                            (value = (new sc_Pair((!(term instanceof sc_Pair)?term:(new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((term.car))), (translate_args_nboyer((term.cdr)))))), ((sym = ((term.cdr.car).car)), (BgL_sc_symbolzd2record_16zd2 = (BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer(sym))), (BgL_sc_symbolzd2record_16zd2[(1)])))));
+                            (symbol_record = (BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer(sc_sym_17)));
+                            (symbol_record[(1)] = value);
+                        }
+                    else
+                        (sc_error("ADD-LEMMA did not like term:  ", term));
+                    (lst = (lst.cdr));
+                }
+            }
+            return true;
+        }
+    };
+    BgL_testzd2boyerzd2 = function(n) {
+        var optrOpnd;
+        var term;
+        var sc_n_20;
+        var answer;
+        var sc_term_21;
+        var sc_term_22;
+        {
+            (rewrite_count_nboyer = (0));
+            (term = sc_const_4_nboyer);
+            (sc_n_20 = n);
+            while (!(sc_n_20=== 0)) {
+                {
+                    (term = (sc_list("\u1E9Cor", term, (new sc_Pair("\u1E9Cf",null)))));
+                    (--sc_n_20);
+                }
+            }
+            (sc_term_22 = term);
+            if (!(sc_term_22 instanceof sc_Pair))
+                (optrOpnd = sc_term_22);
+            else
+                (optrOpnd = (new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((sc_term_22.car))), (translate_args_nboyer((sc_term_22.cdr))))));
+            (sc_term_21 = (apply_subst_nboyer(((const_nboyer === null)?null:(new sc_Pair((new sc_Pair((const_nboyer.car.car), (translate_term_nboyer((const_nboyer.car.cdr))))), (translate_alist_nboyer((const_nboyer.cdr)))))), optrOpnd)));
+            (answer = (tautologyp_nboyer((rewrite_nboyer(sc_term_21)), null, null)));
+            (sc_write(rewrite_count_nboyer));
+            (sc_display(" rewrites"));
+            (sc_newline());
+            if ((answer!== false))
+                return rewrite_count_nboyer;
+            else
+                return false;
+        }
+    };
+}
+/* Exported Variables */
+var BgL_parsezd2ze3nbzd2treesze3;
+var BgL_earleyzd2benchmarkzd2;
+var BgL_parsezd2ze3parsedzf3zc2;
+var test;
+var BgL_parsezd2ze3treesz31;
+var BgL_makezd2parserzd2;
+/* End Exports */
+
+var const_earley;
+{
+    (const_earley = (new sc_Pair((new sc_Pair("\u1E9Cs",(new sc_Pair((new sc_Pair("\u1E9Ca",null)),(new sc_Pair((new sc_Pair("\u1E9Cs",(new sc_Pair("\u1E9Cs",null)))),null)))))),null)));
+    BgL_makezd2parserzd2 = function(grammar, lexer) {
+        var i;
+        var parser_descr;
+        var def_loop;
+        var nb_nts;
+        var names;
+        var steps;
+        var predictors;
+        var enders;
+        var starters;
+        var nts;
+        var sc_names_1;
+        var sc_steps_2;
+        var sc_predictors_3;
+        var sc_enders_4;
+        var sc_starters_5;
+        var nb_confs;
+        var BgL_sc_defzd2loop_6zd2;
+        var BgL_sc_nbzd2nts_7zd2;
+        var sc_nts_8;
+        var BgL_sc_defzd2loop_9zd2;
+        var ind;
+        {
+            ind = function(nt, sc_nts_10) {
+                var i;
+                {
+                    (i = ((sc_nts_10.length)-(1)));
+                    while (true) {
+                        if ((i>=(0)))
+                            if ((sc_isEqual((sc_nts_10[i]), nt)))
+                                return i;
+                            else
+                                (--i);
+                        else
+                            return false;
+                    }
+                }
+            };
+            (sc_nts_8 = ((BgL_sc_defzd2loop_9zd2 = function(defs, sc_nts_11) {
+                var rule_loop;
+                var head;
+                var def;
+                return ((defs instanceof sc_Pair)?((def = (defs.car)), (head = (def.car)), (rule_loop = function(rules, sc_nts_12) {
+                    var nt;
+                    var l;
+                    var sc_nts_13;
+                    var rule;
+                    if ((rules instanceof sc_Pair))
+                        {
+                            (rule = (rules.car));
+                            (l = rule);
+                            (sc_nts_13 = sc_nts_12);
+                            while ((l instanceof sc_Pair)) {
+                                {
+                                    (nt = (l.car));
+                                    (l = (l.cdr));
+                                    (sc_nts_13 = (((sc_member(nt, sc_nts_13))!== false)?sc_nts_13:(new sc_Pair(nt, sc_nts_13))));
+                                }
+                            }
+                            return (rule_loop((rules.cdr), sc_nts_13));
+                        }
+                    else
+                        return (BgL_sc_defzd2loop_9zd2((defs.cdr), sc_nts_12));
+                }), (rule_loop((def.cdr), (((sc_member(head, sc_nts_11))!== false)?sc_nts_11:(new sc_Pair(head, sc_nts_11)))))):(sc_list2vector((sc_reverse(sc_nts_11)))));
+            }), (BgL_sc_defzd2loop_9zd2(grammar, null))));
+            (BgL_sc_nbzd2nts_7zd2 = (sc_nts_8.length));
+            (nb_confs = (((BgL_sc_defzd2loop_6zd2 = function(defs, BgL_sc_nbzd2confs_14zd2) {
+                var rule_loop;
+                var def;
+                return ((defs instanceof sc_Pair)?((def = (defs.car)), (rule_loop = function(rules, BgL_sc_nbzd2confs_15zd2) {
+                    var l;
+                    var BgL_sc_nbzd2confs_16zd2;
+                    var rule;
+                    if ((rules instanceof sc_Pair))
+                        {
+                            (rule = (rules.car));
+                            (l = rule);
+                            (BgL_sc_nbzd2confs_16zd2 = BgL_sc_nbzd2confs_15zd2);
+                            while ((l instanceof sc_Pair)) {
+                                {
+                                    (l = (l.cdr));
+                                    (++BgL_sc_nbzd2confs_16zd2);
+                                }
+                            }
+                            return (rule_loop((rules.cdr), (BgL_sc_nbzd2confs_16zd2+(1))));
+                        }
+                    else
+                        return (BgL_sc_defzd2loop_6zd2((defs.cdr), BgL_sc_nbzd2confs_15zd2));
+                }), (rule_loop((def.cdr), BgL_sc_nbzd2confs_14zd2))):BgL_sc_nbzd2confs_14zd2);
+            }), (BgL_sc_defzd2loop_6zd2(grammar, (0))))+BgL_sc_nbzd2nts_7zd2));
+            (sc_starters_5 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
+            (sc_enders_4 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
+            (sc_predictors_3 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
+            (sc_steps_2 = (sc_makeVector(nb_confs, false)));
+            (sc_names_1 = (sc_makeVector(nb_confs, false)));
+            (nts = sc_nts_8);
+            (starters = sc_starters_5);
+            (enders = sc_enders_4);
+            (predictors = sc_predictors_3);
+            (steps = sc_steps_2);
+            (names = sc_names_1);
+            (nb_nts = (sc_nts_8.length));
+            (i = (nb_nts-(1)));
+            while ((i>=(0))) {
+                {
+                    (sc_steps_2[i] = (i-nb_nts));
+                    (sc_names_1[i] = (sc_list((sc_nts_8[i]), (0))));
+                    (sc_enders_4[i] = (sc_list(i)));
+                    (--i);
+                }
+            }
+            def_loop = function(defs, conf) {
+                var rule_loop;
+                var head;
+                var def;
+                return ((defs instanceof sc_Pair)?((def = (defs.car)), (head = (def.car)), (rule_loop = function(rules, conf, rule_num) {
+                    var i;
+                    var sc_i_17;
+                    var nt;
+                    var l;
+                    var sc_conf_18;
+                    var sc_i_19;
+                    var rule;
+                    if ((rules instanceof sc_Pair))
+                        {
+                            (rule = (rules.car));
+                            (names[conf] = (sc_list(head, rule_num)));
+                            (sc_i_19 = (ind(head, nts)));
+                            (starters[sc_i_19] = (new sc_Pair(conf, (starters[sc_i_19]))));
+                            (l = rule);
+                            (sc_conf_18 = conf);
+                            while ((l instanceof sc_Pair)) {
+                                {
+                                    (nt = (l.car));
+                                    (steps[sc_conf_18] = (ind(nt, nts)));
+                                    (sc_i_17 = (ind(nt, nts)));
+                                    (predictors[sc_i_17] = (new sc_Pair(sc_conf_18, (predictors[sc_i_17]))));
+                                    (l = (l.cdr));
+                                    (++sc_conf_18);
+                                }
+                            }
+                            (steps[sc_conf_18] = ((ind(head, nts))-nb_nts));
+                            (i = (ind(head, nts)));
+                            (enders[i] = (new sc_Pair(sc_conf_18, (enders[i]))));
+                            return (rule_loop((rules.cdr), (sc_conf_18+(1)), (rule_num+(1))));
+                        }
+                    else
+                        return (def_loop((defs.cdr), conf));
+                }), (rule_loop((def.cdr), conf, (1)))):undefined);
+            };
+            (def_loop(grammar, (sc_nts_8.length)));
+            (parser_descr = [lexer, sc_nts_8, sc_starters_5, sc_enders_4, sc_predictors_3, sc_steps_2, sc_names_1]);
+            return function(input) {
+                var optrOpnd;
+                var sc_optrOpnd_20;
+                var sc_optrOpnd_21;
+                var sc_optrOpnd_22;
+                var loop1;
+                var BgL_sc_stateza2_23za2;
+                var toks;
+                var BgL_sc_nbzd2nts_24zd2;
+                var sc_steps_25;
+                var sc_enders_26;
+                var state_num;
+                var BgL_sc_statesza2_27za2;
+                var states;
+                var i;
+                var conf;
+                var l;
+                var tok_nts;
+                var sc_i_28;
+                var sc_i_29;
+                var l1;
+                var l2;
+                var tok;
+                var tail1129;
+                var L1125;
+                var goal_enders;
+                var BgL_sc_statesza2_30za2;
+                var BgL_sc_nbzd2nts_31zd2;
+                var BgL_sc_nbzd2confs_32zd2;
+                var nb_toks;
+                var goal_starters;
+                var sc_states_33;
+                var BgL_sc_nbzd2confs_34zd2;
+                var BgL_sc_nbzd2toks_35zd2;
+                var sc_toks_36;
+                var falseHead1128;
+                var sc_names_37;
+                var sc_steps_38;
+                var sc_predictors_39;
+                var sc_enders_40;
+                var sc_starters_41;
+                var sc_nts_42;
+                var lexer;
+                var sc_ind_43;
+                var make_states;
+                var BgL_sc_confzd2setzd2getza2_44za2;
+                var conf_set_merge_new_bang;
+                var conf_set_adjoin;
+                var BgL_sc_confzd2setzd2adjoinza2_45za2;
+                var BgL_sc_confzd2setzd2adjoinza2za2_46z00;
+                var conf_set_union;
+                var forw;
+                var is_parsed;
+                var deriv_trees;
+                var BgL_sc_derivzd2treesza2_47z70;
+                var nb_deriv_trees;
+                var BgL_sc_nbzd2derivzd2treesza2_48za2;
+                {
+                    sc_ind_43 = function(nt, sc_nts_49) {
+                        var i;
+                        {
+                            (i = ((sc_nts_49.length)-(1)));
+                            while (true) {
+                                if ((i>=(0)))
+                                    if ((sc_isEqual((sc_nts_49[i]), nt)))
+                                        return i;
+                                    else
+                                        (--i);
+                                else
+                                    return false;
+                            }
+                        }
+                    };
+                    make_states = function(BgL_sc_nbzd2toks_50zd2, BgL_sc_nbzd2confs_51zd2) {
+                        var v;
+                        var i;
+                        var sc_states_52;
+                        {
+                            (sc_states_52 = (sc_makeVector((BgL_sc_nbzd2toks_50zd2+(1)), false)));
+                            (i = BgL_sc_nbzd2toks_50zd2);
+                            while ((i>=(0))) {
+                                {
+                                    (v = (sc_makeVector((BgL_sc_nbzd2confs_51zd2+(1)), false)));
+                                    (v[(0)] = (-1));
+                                    (sc_states_52[i] = v);
+                                    (--i);
+                                }
+                            }
+                            return sc_states_52;
+                        }
+                    };
+                    BgL_sc_confzd2setzd2getza2_44za2 = function(state, BgL_sc_statezd2num_53zd2, sc_conf_54) {
+                        var conf_set;
+                        var BgL_sc_confzd2set_55zd2;
+                        return ((BgL_sc_confzd2set_55zd2 = (state[(sc_conf_54+(1))])), ((BgL_sc_confzd2set_55zd2!== false)?BgL_sc_confzd2set_55zd2:((conf_set = (sc_makeVector((BgL_sc_statezd2num_53zd2+(6)), false))), (conf_set[(1)] = (-3)), (conf_set[(2)] = (-1)), (conf_set[(3)] = (-1)), (conf_set[(4)] = (-1)), (state[(sc_conf_54+(1))] = conf_set), conf_set)));
+                    };
+                    conf_set_merge_new_bang = function(conf_set) {
+                        return ((conf_set[((conf_set[(1)])+(5))] = (conf_set[(4)])), (conf_set[(1)] = (conf_set[(3)])), (conf_set[(3)] = (-1)), (conf_set[(4)] = (-1)));
+                    };
+                    conf_set_adjoin = function(state, conf_set, sc_conf_56, i) {
+                        var tail;
+                        return ((tail = (conf_set[(3)])), (conf_set[(i+(5))] = (-1)), (conf_set[(tail+(5))] = i), (conf_set[(3)] = i), ((tail<(0))?((conf_set[(0)] = (state[(0)])), (state[(0)] = sc_conf_56)):undefined));
+                    };
+                    BgL_sc_confzd2setzd2adjoinza2_45za2 = function(sc_states_57, BgL_sc_statezd2num_58zd2, l, i) {
+                        var conf_set;
+                        var sc_conf_59;
+                        var l1;
+                        var state;
+                        {
+                            (state = (sc_states_57[BgL_sc_statezd2num_58zd2]));
+                            (l1 = l);
+                            while ((l1 instanceof sc_Pair)) {
+                                {
+                                    (sc_conf_59 = (l1.car));
+                                    (conf_set = (BgL_sc_confzd2setzd2getza2_44za2(state, BgL_sc_statezd2num_58zd2, sc_conf_59)));
+                                    if (((conf_set[(i+(5))])=== false))
+                                        {
+                                            (conf_set_adjoin(state, conf_set, sc_conf_59, i));
+                                            (l1 = (l1.cdr));
+                                        }
+                                    else
+                                        (l1 = (l1.cdr));
+                                }
+                            }
+                            return undefined;
+                        }
+                    };
+                    BgL_sc_confzd2setzd2adjoinza2za2_46z00 = function(sc_states_60, BgL_sc_statesza2_61za2, BgL_sc_statezd2num_62zd2, sc_conf_63, i) {
+                        var BgL_sc_confzd2setza2_64z70;
+                        var BgL_sc_stateza2_65za2;
+                        var conf_set;
+                        var state;
+                        return ((state = (sc_states_60[BgL_sc_statezd2num_62zd2])), ((((conf_set = (state[(sc_conf_63+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false)?((BgL_sc_stateza2_65za2 = (BgL_sc_statesza2_61za2[BgL_sc_statezd2num_62zd2])), (BgL_sc_confzd2setza2_64z70 = (BgL_sc_confzd2setzd2getza2_44za2(BgL_sc_stateza2_65za2, BgL_sc_statezd2num_62zd2, sc_conf_63))), (((BgL_sc_confzd2setza2_64z70[(i+(5))])=== false)?(conf_set_adjoin(BgL_sc_stateza2_65za2, BgL_sc_confzd2setza2_64z70, sc_conf_63, i)):undefined), true):false));
+                    };
+                    conf_set_union = function(state, conf_set, sc_conf_66, other_set) {
+                        var i;
+                        {
+                            (i = (other_set[(2)]));
+                            while ((i>=(0))) {
+                                if (((conf_set[(i+(5))])=== false))
+                                    {
+                                        (conf_set_adjoin(state, conf_set, sc_conf_66, i));
+                                        (i = (other_set[(i+(5))]));
+                                    }
+                                else
+                                    (i = (other_set[(i+(5))]));
+                            }
+                            return undefined;
+                        }
+                    };
+                    forw = function(sc_states_67, BgL_sc_statezd2num_68zd2, sc_starters_69, sc_enders_70, sc_predictors_71, sc_steps_72, sc_nts_73) {
+                        var next_set;
+                        var next;
+                        var conf_set;
+                        var ender;
+                        var l;
+                        var starter_set;
+                        var starter;
+                        var sc_l_74;
+                        var sc_loop1_75;
+                        var head;
+                        var BgL_sc_confzd2set_76zd2;
+                        var BgL_sc_statezd2num_77zd2;
+                        var state;
+                        var sc_states_78;
+                        var preds;
+                        var BgL_sc_confzd2set_79zd2;
+                        var step;
+                        var sc_conf_80;
+                        var BgL_sc_nbzd2nts_81zd2;
+                        var sc_state_82;
+                        {
+                            (sc_state_82 = (sc_states_67[BgL_sc_statezd2num_68zd2]));
+                            (BgL_sc_nbzd2nts_81zd2 = (sc_nts_73.length));
+                            while (true) {
+                                {
+                                    (sc_conf_80 = (sc_state_82[(0)]));
+                                    if ((sc_conf_80>=(0)))
+                                        {
+                                            (step = (sc_steps_72[sc_conf_80]));
+                                            (BgL_sc_confzd2set_79zd2 = (sc_state_82[(sc_conf_80+(1))]));
+                                            (head = (BgL_sc_confzd2set_79zd2[(4)]));
+                                            (sc_state_82[(0)] = (BgL_sc_confzd2set_79zd2[(0)]));
+                                            (conf_set_merge_new_bang(BgL_sc_confzd2set_79zd2));
+                                            if ((step>=(0)))
+                                                {
+                                                    (sc_l_74 = (sc_starters_69[step]));
+                                                    while ((sc_l_74 instanceof sc_Pair)) {
+                                                        {
+                                                            (starter = (sc_l_74.car));
+                                                            (starter_set = (BgL_sc_confzd2setzd2getza2_44za2(sc_state_82, BgL_sc_statezd2num_68zd2, starter)));
+                                                            if (((starter_set[(BgL_sc_statezd2num_68zd2+(5))])=== false))
+                                                                {
+                                                                    (conf_set_adjoin(sc_state_82, starter_set, starter, BgL_sc_statezd2num_68zd2));
+                                                                    (sc_l_74 = (sc_l_74.cdr));
+                                                                }
+                                                            else
+                                                                (sc_l_74 = (sc_l_74.cdr));
+                                                        }
+                                                    }
+                                                    (l = (sc_enders_70[step]));
+                                                    while ((l instanceof sc_Pair)) {
+                                                        {
+                                                            (ender = (l.car));
+                                                            if ((((conf_set = (sc_state_82[(ender+(1))])), ((conf_set!== false)?(conf_set[(BgL_sc_statezd2num_68zd2+(5))]):false))!== false))
+                                                                {
+                                                                    (next = (sc_conf_80+(1)));
+                                                                    (next_set = (BgL_sc_confzd2setzd2getza2_44za2(sc_state_82, BgL_sc_statezd2num_68zd2, next)));
+                                                                    (conf_set_union(sc_state_82, next_set, next, BgL_sc_confzd2set_79zd2));
+                                                                    (l = (l.cdr));
+                                                                }
+                                                            else
+                                                                (l = (l.cdr));
+                                                        }
+                                                    }
+                                                }
+                                            else
+                                                {
+                                                    (preds = (sc_predictors_71[(step+BgL_sc_nbzd2nts_81zd2)]));
+                                                    (sc_states_78 = sc_states_67);
+                                                    (state = sc_state_82);
+                                                    (BgL_sc_statezd2num_77zd2 = BgL_sc_statezd2num_68zd2);
+                                                    (BgL_sc_confzd2set_76zd2 = BgL_sc_confzd2set_79zd2);
+                                                    sc_loop1_75 = function(l) {
+                                                        var sc_state_83;
+                                                        var BgL_sc_nextzd2set_84zd2;
+                                                        var sc_next_85;
+                                                        var pred_set;
+                                                        var i;
+                                                        var pred;
+                                                        if ((l instanceof sc_Pair))
+                                                            {
+                                                                (pred = (l.car));
+                                                                (i = head);
+                                                                while ((i>=(0))) {
+                                                                    {
+                                                                        (pred_set = ((sc_state_83 = (sc_states_78[i])), (sc_state_83[(pred+(1))])));
+                                                                        if ((pred_set!== false))
+                                                                            {
+                                                                                (sc_next_85 = (pred+(1)));
+                                                                                (BgL_sc_nextzd2set_84zd2 = (BgL_sc_confzd2setzd2getza2_44za2(state, BgL_sc_statezd2num_77zd2, sc_next_85)));
+                                                                                (conf_set_union(state, BgL_sc_nextzd2set_84zd2, sc_next_85, pred_set));
+                                                                            }
+                                                                        (i = (BgL_sc_confzd2set_76zd2[(i+(5))]));
+                                                                    }
+                                                                }
+                                                                return (sc_loop1_75((l.cdr)));
+                                                            }
+                                                        else
+                                                            return undefined;
+                                                    };
+                                                    (sc_loop1_75(preds));
+                                                }
+                                        }
+                                    else
+                                        return undefined;
+                                }
+                            }
+                        }
+                    };
+                    is_parsed = function(nt, i, j, sc_nts_86, sc_enders_87, sc_states_88) {
+                        var conf_set;
+                        var state;
+                        var sc_conf_89;
+                        var l;
+                        var BgL_sc_ntza2_90za2;
+                        {
+                            (BgL_sc_ntza2_90za2 = (sc_ind_43(nt, sc_nts_86)));
+                            if ((BgL_sc_ntza2_90za2!== false))
+                                {
+                                    (sc_nts_86.length);
+                                    (l = (sc_enders_87[BgL_sc_ntza2_90za2]));
+                                    while (true) {
+                                        if ((l instanceof sc_Pair))
+                                            {
+                                                (sc_conf_89 = (l.car));
+                                                if ((((state = (sc_states_88[j])), (conf_set = (state[(sc_conf_89+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
+                                                    return true;
+                                                else
+                                                    (l = (l.cdr));
+                                            }
+                                        else
+                                            return false;
+                                    }
+                                }
+                            else
+                                return false;
+                        }
+                    };
+                    deriv_trees = function(sc_conf_91, i, j, sc_enders_92, sc_steps_93, sc_names_94, sc_toks_95, sc_states_96, BgL_sc_nbzd2nts_97zd2) {
+                        var sc_loop1_98;
+                        var prev;
+                        var name;
+                        return ((name = (sc_names_94[sc_conf_91])), ((name!== false)?((sc_conf_91<BgL_sc_nbzd2nts_97zd2)?(sc_list((sc_list(name, ((sc_toks_95[i]).car))))):(sc_list((sc_list(name))))):((prev = (sc_conf_91-(1))), (sc_loop1_98 = function(l1, l2) {
+                            var loop2;
+                            var ender_set;
+                            var state;
+                            var ender;
+                            var l1;
+                            var l2;
+                            while (true) {
+                                if ((l1 instanceof sc_Pair))
+                                    {
+                                        (ender = (l1.car));
+                                        (ender_set = ((state = (sc_states_96[j])), (state[(ender+(1))])));
+                                        if ((ender_set!== false))
+                                            {
+                                                loop2 = function(k, l2) {
+                                                    var loop3;
+                                                    var ender_trees;
+                                                    var prev_trees;
+                                                    var conf_set;
+                                                    var sc_state_99;
+                                                    var k;
+                                                    var l2;
+                                                    while (true) {
+                                                        if ((k>=(0)))
+                                                            if (((k>=i)&&(((sc_state_99 = (sc_states_96[k])), (conf_set = (sc_state_99[(prev+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false)))
+                                                                {
+                                                                    (prev_trees = (deriv_trees(prev, i, k, sc_enders_92, sc_steps_93, sc_names_94, sc_toks_95, sc_states_96, BgL_sc_nbzd2nts_97zd2)));
+                                                                    (ender_trees = (deriv_trees(ender, k, j, sc_enders_92, sc_steps_93, sc_names_94, sc_toks_95, sc_states_96, BgL_sc_nbzd2nts_97zd2)));
+                                                                    loop3 = function(l3, l2) {
+                                                                        var l4;
+                                                                        var sc_l2_100;
+                                                                        var ender_tree;
+                                                                        if ((l3 instanceof sc_Pair))
+                                                                            {
+                                                                                (ender_tree = (sc_list((l3.car))));
+                                                                                (l4 = prev_trees);
+                                                                                (sc_l2_100 = l2);
+                                                                                while ((l4 instanceof sc_Pair)) {
+                                                                                    {
+                                                                                        (sc_l2_100 = (new sc_Pair((sc_append((l4.car), ender_tree)), sc_l2_100)));
+                                                                                        (l4 = (l4.cdr));
+                                                                                    }
+                                                                                }
+                                                                                return (loop3((l3.cdr), sc_l2_100));
+                                                                            }
+                                                                        else
+                                                                            return (loop2((ender_set[(k+(5))]), l2));
+                                                                    };
+                                                                    return (loop3(ender_trees, l2));
+                                                                }
+                                                            else
+                                                                (k = (ender_set[(k+(5))]));
+                                                        else
+                                                            return (sc_loop1_98((l1.cdr), l2));
+                                                    }
+                                                };
+                                                return (loop2((ender_set[(2)]), l2));
+                                            }
+                                        else
+                                            (l1 = (l1.cdr));
+                                    }
+                                else
+                                    return l2;
+                            }
+                        }), (sc_loop1_98((sc_enders_92[(sc_steps_93[prev])]), null)))));
+                    };
+                    BgL_sc_derivzd2treesza2_47z70 = function(nt, i, j, sc_nts_101, sc_enders_102, sc_steps_103, sc_names_104, sc_toks_105, sc_states_106) {
+                        var conf_set;
+                        var state;
+                        var sc_conf_107;
+                        var l;
+                        var trees;
+                        var BgL_sc_nbzd2nts_108zd2;
+                        var BgL_sc_ntza2_109za2;
+                        {
+                            (BgL_sc_ntza2_109za2 = (sc_ind_43(nt, sc_nts_101)));
+                            if ((BgL_sc_ntza2_109za2!== false))
+                                {
+                                    (BgL_sc_nbzd2nts_108zd2 = (sc_nts_101.length));
+                                    (l = (sc_enders_102[BgL_sc_ntza2_109za2]));
+                                    (trees = null);
+                                    while ((l instanceof sc_Pair)) {
+                                        {
+                                            (sc_conf_107 = (l.car));
+                                            if ((((state = (sc_states_106[j])), (conf_set = (state[(sc_conf_107+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
+                                                {
+                                                    (l = (l.cdr));
+                                                    (trees = (sc_append((deriv_trees(sc_conf_107, i, j, sc_enders_102, sc_steps_103, sc_names_104, sc_toks_105, sc_states_106, BgL_sc_nbzd2nts_108zd2)), trees)));
+                                                }
+                                            else
+                                                (l = (l.cdr));
+                                        }
+                                    }
+                                    return trees;
+                                }
+                            else
+                                return false;
+                        }
+                    };
+                    nb_deriv_trees = function(sc_conf_110, i, j, sc_enders_111, sc_steps_112, sc_toks_113, sc_states_114, BgL_sc_nbzd2nts_115zd2) {
+                        var sc_loop1_116;
+                        var tmp1124;
+                        var prev;
+                        return ((prev = (sc_conf_110-(1))), ((((tmp1124 = (sc_conf_110<BgL_sc_nbzd2nts_115zd2)), ((tmp1124!== false)?tmp1124:((sc_steps_112[prev])<(0))))!== false)?(1):((sc_loop1_116 = function(l, sc_n_118) {
+                            var nb_ender_trees;
+                            var nb_prev_trees;
+                            var conf_set;
+                            var state;
+                            var k;
+                            var n;
+                            var ender_set;
+                            var sc_state_117;
+                            var ender;
+                            var l;
+                            var sc_n_118;
+                            while (true) {
+                                if ((l instanceof sc_Pair))
+                                    {
+                                        (ender = (l.car));
+                                        (ender_set = ((sc_state_117 = (sc_states_114[j])), (sc_state_117[(ender+(1))])));
+                                        if ((ender_set!== false))
+                                            {
+                                                (k = (ender_set[(2)]));
+                                                (n = sc_n_118);
+                                                while ((k>=(0))) {
+                                                    if (((k>=i)&&(((state = (sc_states_114[k])), (conf_set = (state[(prev+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false)))
+                                                        {
+                                                            (nb_prev_trees = (nb_deriv_trees(prev, i, k, sc_enders_111, sc_steps_112, sc_toks_113, sc_states_114, BgL_sc_nbzd2nts_115zd2)));
+                                                            (nb_ender_trees = (nb_deriv_trees(ender, k, j, sc_enders_111, sc_steps_112, sc_toks_113, sc_states_114, BgL_sc_nbzd2nts_115zd2)));
+                                                            (k = (ender_set[(k+(5))]));
+                                                            (n +=(nb_prev_trees*nb_ender_trees));
+                                                        }
+                                                    else
+                                                        (k = (ender_set[(k+(5))]));
+                                                }
+                                                return (sc_loop1_116((l.cdr), n));
+                                            }
+                                        else
+                                            (l = (l.cdr));
+                                    }
+                                else
+                                    return sc_n_118;
+                            }
+                        }), (sc_loop1_116((sc_enders_111[(sc_steps_112[prev])]), (0))))));
+                    };
+                    BgL_sc_nbzd2derivzd2treesza2_48za2 = function(nt, i, j, sc_nts_119, sc_enders_120, sc_steps_121, sc_toks_122, sc_states_123) {
+                        var conf_set;
+                        var state;
+                        var sc_conf_124;
+                        var l;
+                        var nb_trees;
+                        var BgL_sc_nbzd2nts_125zd2;
+                        var BgL_sc_ntza2_126za2;
+                        {
+                            (BgL_sc_ntza2_126za2 = (sc_ind_43(nt, sc_nts_119)));
+                            if ((BgL_sc_ntza2_126za2!== false))
+                                {
+                                    (BgL_sc_nbzd2nts_125zd2 = (sc_nts_119.length));
+                                    (l = (sc_enders_120[BgL_sc_ntza2_126za2]));
+                                    (nb_trees = (0));
+                                    while ((l instanceof sc_Pair)) {
+                                        {
+                                            (sc_conf_124 = (l.car));
+                                            if ((((state = (sc_states_123[j])), (conf_set = (state[(sc_conf_124+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
+                                                {
+                                                    (l = (l.cdr));
+                                                    (nb_trees = ((nb_deriv_trees(sc_conf_124, i, j, sc_enders_120, sc_steps_121, sc_toks_122, sc_states_123, BgL_sc_nbzd2nts_125zd2))+nb_trees));
+                                                }
+                                            else
+                                                (l = (l.cdr));
+                                        }
+                                    }
+                                    return nb_trees;
+                                }
+                            else
+                                return false;
+                        }
+                    };
+                    (lexer = (parser_descr[(0)]));
+                    (sc_nts_42 = (parser_descr[(1)]));
+                    (sc_starters_41 = (parser_descr[(2)]));
+                    (sc_enders_40 = (parser_descr[(3)]));
+                    (sc_predictors_39 = (parser_descr[(4)]));
+                    (sc_steps_38 = (parser_descr[(5)]));
+                    (sc_names_37 = (parser_descr[(6)]));
+                    (falseHead1128 = (new sc_Pair(null, null)));
+                    (L1125 = (lexer(input)));
+                    (tail1129 = falseHead1128);
+                    while (!(L1125 === null)) {
+                        {
+                            (tok = (L1125.car));
+                            (l1 = (tok.cdr));
+                            (l2 = null);
+                            while ((l1 instanceof sc_Pair)) {
+                                {
+                                    (sc_i_29 = (sc_ind_43((l1.car), sc_nts_42)));
+                                    if ((sc_i_29!== false))
+                                        {
+                                            (l1 = (l1.cdr));
+                                            (l2 = (new sc_Pair(sc_i_29, l2)));
+                                        }
+                                    else
+                                        (l1 = (l1.cdr));
+                                }
+                            }
+                            (sc_optrOpnd_22 = (new sc_Pair((tok.car), (sc_reverse(l2)))));
+                            (sc_optrOpnd_21 = (new sc_Pair(sc_optrOpnd_22, null)));
+                            (tail1129.cdr = sc_optrOpnd_21);
+                            (tail1129 = (tail1129.cdr));
+                            (L1125 = (L1125.cdr));
+                        }
+                    }
+                    (sc_optrOpnd_20 = (falseHead1128.cdr));
+                    (sc_toks_36 = (sc_list2vector(sc_optrOpnd_20)));
+                    (BgL_sc_nbzd2toks_35zd2 = (sc_toks_36.length));
+                    (BgL_sc_nbzd2confs_34zd2 = (sc_steps_38.length));
+                    (sc_states_33 = (make_states(BgL_sc_nbzd2toks_35zd2, BgL_sc_nbzd2confs_34zd2)));
+                    (goal_starters = (sc_starters_41[(0)]));
+                    (BgL_sc_confzd2setzd2adjoinza2_45za2(sc_states_33, (0), goal_starters, (0)));
+                    (forw(sc_states_33, (0), sc_starters_41, sc_enders_40, sc_predictors_39, sc_steps_38, sc_nts_42));
+                    (sc_i_28 = (0));
+                    while ((sc_i_28<BgL_sc_nbzd2toks_35zd2)) {
+                        {
+                            (tok_nts = ((sc_toks_36[sc_i_28]).cdr));
+                            (BgL_sc_confzd2setzd2adjoinza2_45za2(sc_states_33, (sc_i_28+(1)), tok_nts, sc_i_28));
+                            (forw(sc_states_33, (sc_i_28+(1)), sc_starters_41, sc_enders_40, sc_predictors_39, sc_steps_38, sc_nts_42));
+                            (++sc_i_28);
+                        }
+                    }
+                    (nb_toks = (sc_toks_36.length));
+                    (BgL_sc_nbzd2confs_32zd2 = (sc_steps_38.length));
+                    (BgL_sc_nbzd2nts_31zd2 = (sc_nts_42.length));
+                    (BgL_sc_statesza2_30za2 = (make_states(nb_toks, BgL_sc_nbzd2confs_32zd2)));
+                    (goal_enders = (sc_enders_40[(0)]));
+                    (l = goal_enders);
+                    while ((l instanceof sc_Pair)) {
+                        {
+                            (conf = (l.car));
+                            (BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_33, BgL_sc_statesza2_30za2, nb_toks, conf, (0)));
+                            (l = (l.cdr));
+                        }
+                    }
+                    (i = nb_toks);
+                    while ((i>=(0))) {
+                        {
+                            (states = sc_states_33);
+                            (BgL_sc_statesza2_27za2 = BgL_sc_statesza2_30za2);
+                            (state_num = i);
+                            (sc_enders_26 = sc_enders_40);
+                            (sc_steps_25 = sc_steps_38);
+                            (BgL_sc_nbzd2nts_24zd2 = BgL_sc_nbzd2nts_31zd2);
+                            (toks = sc_toks_36);
+                            (BgL_sc_stateza2_23za2 = (BgL_sc_statesza2_30za2[i]));
+                            loop1 = function() {
+                                var sc_loop1_127;
+                                var prev;
+                                var BgL_sc_statesza2_128za2;
+                                var sc_states_129;
+                                var j;
+                                var i;
+                                var sc_i_130;
+                                var head;
+                                var conf_set;
+                                var sc_conf_131;
+                                {
+                                    (sc_conf_131 = (BgL_sc_stateza2_23za2[(0)]));
+                                    if ((sc_conf_131>=(0)))
+                                        {
+                                            (conf_set = (BgL_sc_stateza2_23za2[(sc_conf_131+(1))]));
+                                            (head = (conf_set[(4)]));
+                                            (BgL_sc_stateza2_23za2[(0)] = (conf_set[(0)]));
+                                            (conf_set_merge_new_bang(conf_set));
+                                            (sc_i_130 = head);
+                                            while ((sc_i_130>=(0))) {
+                                                {
+                                                    (i = sc_i_130);
+                                                    (j = state_num);
+                                                    (sc_states_129 = states);
+                                                    (BgL_sc_statesza2_128za2 = BgL_sc_statesza2_27za2);
+                                                    (prev = (sc_conf_131-(1)));
+                                                    if (((sc_conf_131>=BgL_sc_nbzd2nts_24zd2)&&((sc_steps_25[prev])>=(0))))
+                                                        {
+                                                            sc_loop1_127 = function(l) {
+                                                                var k;
+                                                                var ender_set;
+                                                                var state;
+                                                                var ender;
+                                                                var l;
+                                                                while (true) {
+                                                                    if ((l instanceof sc_Pair))
+                                                                        {
+                                                                            (ender = (l.car));
+                                                                            (ender_set = ((state = (sc_states_129[j])), (state[(ender+(1))])));
+                                                                            if ((ender_set!== false))
+                                                                                {
+                                                                                    (k = (ender_set[(2)]));
+                                                                                    while ((k>=(0))) {
+                                                                                        {
+                                                                                            if ((k>=i))
+                                                                                                if (((BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_129, BgL_sc_statesza2_128za2, k, prev, i))!== false))
+                                                                                                    (BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_129, BgL_sc_statesza2_128za2, j, ender, k));
+                                                                                            (k = (ender_set[(k+(5))]));
+                                                                                        }
+                                                                                    }
+                                                                                    return (sc_loop1_127((l.cdr)));
+                                                                                }
+                                                                            else
+                                                                                (l = (l.cdr));
+                                                                        }
+                                                                    else
+                                                                        return undefined;
+                                                                }
+                                                            };
+                                                            (sc_loop1_127((sc_enders_26[(sc_steps_25[prev])])));
+                                                        }
+                                                    (sc_i_130 = (conf_set[(sc_i_130+(5))]));
+                                                }
+                                            }
+                                            return (loop1());
+                                        }
+                                    else
+                                        return undefined;
+                                }
+                            };
+                            (loop1());
+                            (--i);
+                        }
+                    }
+                    (optrOpnd = BgL_sc_statesza2_30za2);
+                    return [sc_nts_42, sc_starters_41, sc_enders_40, sc_predictors_39, sc_steps_38, sc_names_37, sc_toks_36, optrOpnd, is_parsed, BgL_sc_derivzd2treesza2_47z70, BgL_sc_nbzd2derivzd2treesza2_48za2];
+                }
+            };
+        }
+    };
+    BgL_parsezd2ze3parsedzf3zc2 = function(parse, nt, i, j) {
+        var is_parsed;
+        var states;
+        var enders;
+        var nts;
+        return ((nts = (parse[(0)])), (enders = (parse[(2)])), (states = (parse[(7)])), (is_parsed = (parse[(8)])), (is_parsed(nt, i, j, nts, enders, states)));
+    };
+    BgL_parsezd2ze3treesz31 = function(parse, nt, i, j) {
+        var BgL_sc_derivzd2treesza2_132z70;
+        var states;
+        var toks;
+        var names;
+        var steps;
+        var enders;
+        var nts;
+        return ((nts = (parse[(0)])), (enders = (parse[(2)])), (steps = (parse[(4)])), (names = (parse[(5)])), (toks = (parse[(6)])), (states = (parse[(7)])), (BgL_sc_derivzd2treesza2_132z70 = (parse[(9)])), (BgL_sc_derivzd2treesza2_132z70(nt, i, j, nts, enders, steps, names, toks, states)));
+    };
+    BgL_parsezd2ze3nbzd2treesze3 = function(parse, nt, i, j) {
+        var BgL_sc_nbzd2derivzd2treesza2_133za2;
+        var states;
+        var toks;
+        var steps;
+        var enders;
+        var nts;
+        return ((nts = (parse[(0)])), (enders = (parse[(2)])), (steps = (parse[(4)])), (toks = (parse[(6)])), (states = (parse[(7)])), (BgL_sc_nbzd2derivzd2treesza2_133za2 = (parse[(10)])), (BgL_sc_nbzd2derivzd2treesza2_133za2(nt, i, j, nts, enders, steps, toks, states)));
+    };
+    test = function(k) {
+        var x;
+        var p;
+        return ((p = (BgL_makezd2parserzd2(const_earley, function(l) {
+            var sc_x_134;
+            var tail1134;
+            var L1130;
+            var falseHead1133;
+            {
+                (falseHead1133 = (new sc_Pair(null, null)));
+                (tail1134 = falseHead1133);
+                (L1130 = l);
+                while (!(L1130 === null)) {
+                    {
+                        (tail1134.cdr = (new sc_Pair(((sc_x_134 = (L1130.car)), (sc_list(sc_x_134, sc_x_134))), null)));
+                        (tail1134 = (tail1134.cdr));
+                        (L1130 = (L1130.cdr));
+                    }
+                }
+                return (falseHead1133.cdr);
+            }
+        }))), (x = (p((sc_vector2list((sc_makeVector(k, "\u1E9Ca"))))))), (sc_length((BgL_parsezd2ze3treesz31(x, "\u1E9Cs", (0), k)))));
+    };
+    BgL_earleyzd2benchmarkzd2 = function() {
+        var args = null;
+        for (var sc_tmp = arguments.length - 1; sc_tmp >= 0; sc_tmp--) {
+            args = sc_cons(arguments[sc_tmp], args);
+        }
+        var k;
+        return ((k = ((args === null)?(7):(args.car))), (BgL_runzd2benchmarkzd2("earley", (1), function() {
+            return (test(k));
+        }, function(result) {
+            return ((sc_display(result)), (sc_newline()), result == 132);
+        })));
+    };
+}
+
+
+/************* END OF GENERATED CODE *************/
+// Invoke this function to run a benchmark.
+// The first argument is a string identifying the benchmark.
+// The second argument is the number of times to run the benchmark.
+// The third argument is a function that runs the benchmark.
+// The fourth argument is a unary function that warns if the result
+// returned by the benchmark is incorrect.
+//
+// Example:
+// RunBenchmark("new Array()",
+//              1,
+//              function () { new Array(1000000); }
+//              function (v) {
+//                return (v instanceof Array) && (v.length == 1000000);
+//              });
+
+SC_DEFAULT_OUT = new sc_GenericOutputPort(function(s) {});
+SC_ERROR_OUT = SC_DEFAULT_OUT;
+
+function RunBenchmark(name, count, run, warn) {
+  for (var n = 0; n < count; ++n) {
+    result = run();
+    if (!warn(result)) {
+      throw new Error("Earley or Boyer did incorrect number of rewrites");
+    }
+  }
+}
+
+var BgL_runzd2benchmarkzd2 = RunBenchmark;