js/src/v8/earley-boyer.js

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     1 // This file is automatically generated by scheme2js, except for the
     2 // benchmark harness code at the beginning and end of the file.
     4 var EarleyBoyer = new BenchmarkSuite('EarleyBoyer', 666463, [
     5   new Benchmark("Earley", function () { BgL_earleyzd2benchmarkzd2(); }),
     6   new Benchmark("Boyer", function () { BgL_nboyerzd2benchmarkzd2(); })
     7 ]);
    10 /************* GENERATED FILE - DO NOT EDIT *************/
    11 /************* GENERATED FILE - DO NOT EDIT *************/
    12 /************* GENERATED FILE - DO NOT EDIT *************/
    13 /************* GENERATED FILE - DO NOT EDIT *************/
    14 /************* GENERATED FILE - DO NOT EDIT *************/
    15 /************* GENERATED FILE - DO NOT EDIT *************/
    16 /************* GENERATED FILE - DO NOT EDIT *************/
    17 /************* GENERATED FILE - DO NOT EDIT *************/
    18 /*
    19  * To use write/prints/... the default-output port has to be set first.
    20  * Simply setting SC_DEFAULT_OUT and SC_ERROR_OUT to the desired values
    21  * should do the trick.
    22  * In the following example the std-out and error-port are redirected to
    23  * a DIV.
    24 function initRuntime() {
    25     function escapeHTML(s) {
    26 	var tmp = s;
    27 	tmp = tmp.replace(/&/g, "&amp;");
    28 	tmp = tmp.replace(/</g, "&lt;");
    29 	tmp = tmp.replace(/>/g, "&gt;");
    30 	tmp = tmp.replace(/ /g, "&nbsp;");
    31 	tmp = tmp.replace(/\n/g, "<br />");
    32 	tmp = tmp.replace(/\t/g, "&nbsp;&nbsp;&nbsp;&nbsp");
    33 	return tmp;
    35     }
    37     document.write("<div id='stdout'></div>");
    38     SC_DEFAULT_OUT = new sc_GenericOutputPort(
    39 	function(s) {
    40 	    var stdout = document.getElementById('stdout');
    41 	    stdout.innerHTML = stdout.innerHTML + escapeHTML(s);
    42 	});
    43     SC_ERROR_OUT = SC_DEFAULT_OUT;
    44 }
    45 */
    48 function sc_print_debug() {
    49     sc_print.apply(null, arguments);
    50 }
    51 /*** META ((export *js*)) */
    52 var sc_JS_GLOBALS = this;
    54 var __sc_LINE=-1;
    55 var __sc_FILE="";
    57 /*** META ((export #t)) */
    58 function sc_alert() {
    59    var len = arguments.length;
    60    var s = "";
    61    var i;
    63    for( i = 0; i < len; i++ ) {
    64        s += sc_toDisplayString(arguments[ i ]);
    65    }
    67    return alert( s );
    68 }
    70 /*** META ((export #t)) */
    71 function sc_typeof( x ) {
    72    return typeof x;
    73 }
    75 /*** META ((export #t)) */
    76 function sc_error() {
    77     var a = [sc_jsstring2symbol("*error*")];
    78     for (var i = 0; i < arguments.length; i++) {
    79 	a[i+1] = arguments[i];
    80     }
    81     throw a;
    82 }
    84 /*** META ((export #t)
    85            (peephole (prefix "throw ")))
    86 */
    87 function sc_raise(obj) {
    88     throw obj;
    89 }
    91 /*** META ((export with-handler-lambda)) */
    92 function sc_withHandlerLambda(handler, body) {
    93     try {
    94 	return body();
    95     } catch(e) {
    96 	if (!e._internalException)
    97 	    return handler(e);
    98 	else
    99 	    throw e;
   100     }
   101 }
   103 var sc_properties = new Object();
   105 /*** META ((export #t)) */
   106 function sc_putpropBang(sym, key, val) {
   107     var ht = sc_properties[sym];
   108     if (!ht) {
   109 	ht = new Object();
   110 	sc_properties[sym] = ht;
   111     }
   112     ht[key] = val;
   113 }
   115 /*** META ((export #t)) */
   116 function sc_getprop(sym, key) {
   117     var ht = sc_properties[sym];
   118     if (ht) {
   119 	if (key in ht)
   120 	    return ht[key];
   121 	else
   122 	    return false;
   123     } else
   124 	return false;
   125 }
   127 /*** META ((export #t)) */
   128 function sc_rempropBang(sym, key) {
   129     var ht = sc_properties[sym];
   130     if (ht)
   131 	delete ht[key];
   132 }
   134 /*** META ((export #t)) */
   135 function sc_any2String(o) {
   136     return jsstring2string(sc_toDisplayString(o));
   137 }
   139 /*** META ((export #t)
   140            (peephole (infix 2 2 "==="))
   141            (type bool))
   142 */
   143 function sc_isEqv(o1, o2) {
   144     return (o1 === o2);
   145 }
   147 /*** META ((export #t)
   148            (peephole (infix 2 2 "==="))
   149            (type bool))
   150 */
   151 function sc_isEq(o1, o2) {
   152     return (o1 === o2);
   153 }
   155 /*** META ((export #t)
   156            (type bool))
   157 */
   158 function sc_isNumber(n) {
   159     return (typeof n === "number");
   160 }
   162 /*** META ((export #t)
   163            (type bool))
   164 */
   165 function sc_isComplex(n) {
   166     return sc_isNumber(n);
   167 }
   169 /*** META ((export #t)
   170            (type bool))
   171 */
   172 function sc_isReal(n) {
   173     return sc_isNumber(n);
   174 }
   176 /*** META ((export #t)
   177            (type bool))
   178 */
   179 function sc_isRational(n) {
   180     return sc_isReal(n);
   181 }
   183 /*** META ((export #t)
   184            (type bool))
   185 */
   186 function sc_isInteger(n) {
   187     return (parseInt(n) === n);
   188 }
   190 /*** META ((export #t)
   191            (type bool)
   192            (peephole (postfix ", false")))
   193 */
   194 // we don't have exact numbers...
   195 function sc_isExact(n) {
   196     return false;
   197 }
   199 /*** META ((export #t)
   200            (peephole (postfix ", true"))
   201 	   (type bool))
   202 */
   203 function sc_isInexact(n) {
   204     return true;
   205 }
   207 /*** META ((export = =fx =fl)
   208            (type bool)
   209            (peephole (infix 2 2 "===")))
   210 */
   211 function sc_equal(x) {
   212     for (var i = 1; i < arguments.length; i++)
   213 	if (x !== arguments[i])
   214 	    return false;
   215     return true;
   216 }
   218 /*** META ((export < <fx <fl)
   219            (type bool)
   220            (peephole (infix 2 2 "<")))
   221 */
   222 function sc_less(x) {
   223     for (var i = 1; i < arguments.length; i++) {
   224 	if (x >= arguments[i])
   225 	    return false;
   226 	x = arguments[i];
   227     }
   228     return true;
   229 }
   231 /*** META ((export > >fx >fl)
   232            (type bool)
   233            (peephole (infix 2 2 ">")))
   234 */
   235 function sc_greater(x, y) {
   236     for (var i = 1; i < arguments.length; i++) {
   237 	if (x <= arguments[i])
   238 	    return false;
   239 	x = arguments[i];
   240     }
   241     return true;
   242 }
   244 /*** META ((export <= <=fx <=fl)
   245            (type bool)
   246            (peephole (infix 2 2 "<=")))
   247 */
   248 function sc_lessEqual(x, y) {
   249     for (var i = 1; i < arguments.length; i++) {
   250 	if (x > arguments[i])
   251 	    return false;
   252 	x = arguments[i];
   253     }
   254     return true;
   255 }
   257 /*** META ((export >= >=fl >=fx)
   258            (type bool)
   259            (peephole (infix 2 2 ">=")))
   260 */
   261 function sc_greaterEqual(x, y) {
   262     for (var i = 1; i < arguments.length; i++) {
   263 	if (x < arguments[i])
   264 	    return false;
   265 	x = arguments[i];
   266     }
   267     return true;
   268 }
   270 /*** META ((export #t)
   271            (type bool)
   272            (peephole (postfix "=== 0")))
   273 */
   274 function sc_isZero(x) {
   275     return (x === 0);
   276 }
   278 /*** META ((export #t)
   279            (type bool)
   280            (peephole (postfix "> 0")))
   281 */
   282 function sc_isPositive(x) {
   283     return (x > 0);
   284 }
   286 /*** META ((export #t)
   287            (type bool)
   288            (peephole (postfix "< 0")))
   289 */
   290 function sc_isNegative(x) {
   291     return (x < 0);
   292 }
   294 /*** META ((export #t)
   295            (type bool)
   296            (peephole (postfix "%2===1")))
   297 */
   298 function sc_isOdd(x) {
   299     return (x % 2 === 1);
   300 }
   302 /*** META ((export #t)
   303            (type bool)
   304            (peephole (postfix "%2===0")))
   305 */
   306 function sc_isEven(x) {
   307     return (x % 2 === 0);
   308 }
   310 /*** META ((export #t)) */
   311 var sc_max = Math.max;
   312 /*** META ((export #t)) */
   313 var sc_min = Math.min;
   315 /*** META ((export + +fx +fl)
   316            (peephole (infix 0 #f "+" "0")))
   317 */
   318 function sc_plus() {
   319     var sum = 0;
   320     for (var i = 0; i < arguments.length; i++)
   321 	sum += arguments[i];
   322     return sum;
   323 }
   325 /*** META ((export * *fx *fl)
   326            (peephole (infix 0 #f "*" "1")))
   327 */
   328 function sc_multi() {
   329     var product = 1;
   330     for (var i = 0; i < arguments.length; i++)
   331 	product *= arguments[i];
   332     return product;
   333 }
   335 /*** META ((export - -fx -fl)
   336            (peephole (minus)))
   337 */
   338 function sc_minus(x) {
   339     if (arguments.length === 1)
   340 	return -x;
   341     else {
   342 	var res = x;
   343 	for (var i = 1; i < arguments.length; i++)
   344 	    res -= arguments[i];
   345 	return res;
   346     }
   347 }
   349 /*** META ((export / /fl)
   350            (peephole (div)))
   351 */
   352 function sc_div(x) {
   353     if (arguments.length === 1)
   354 	return 1/x;
   355     else {
   356 	var res = x;
   357 	for (var i = 1; i < arguments.length; i++)
   358 	    res /= arguments[i];
   359 	return res;
   360     }
   361 }
   363 /*** META ((export #t)) */
   364 var sc_abs = Math.abs;
   366 /*** META ((export quotient /fx)
   367            (peephole (hole 2 "parseInt(" x "/" y ")")))
   368 */
   369 function sc_quotient(x, y) {
   370     return parseInt(x / y);
   371 }
   373 /*** META ((export #t)
   374            (peephole (infix 2 2 "%")))
   375 */
   376 function sc_remainder(x, y) {
   377     return x % y;
   378 }
   380 /*** META ((export #t)
   381            (peephole (modulo)))
   382 */
   383 function sc_modulo(x, y) {
   384     var remainder = x % y;
   385     // if they don't have the same sign
   386     if ((remainder * y) < 0)
   387 	return remainder + y;
   388     else
   389 	return remainder;
   390 }
   392 function sc_euclid_gcd(a, b) {
   393     var temp;
   394     if (a === 0) return b;
   395     if (b === 0) return a;
   396     if (a < 0) {a = -a;};
   397     if (b < 0) {b = -b;};
   398     if (b > a) {temp = a; a = b; b = temp;};
   399     while (true) {
   400 	a %= b;
   401 	if(a === 0) {return b;};
   402 	b %= a;
   403 	if(b === 0) {return a;};
   404     };
   405     return b;
   406 }
   408 /*** META ((export #t)) */
   409 function sc_gcd() {
   410     var gcd = 0;
   411     for (var i = 0; i < arguments.length; i++)
   412 	gcd = sc_euclid_gcd(gcd, arguments[i]);
   413     return gcd;
   414 }
   416 /*** META ((export #t)) */
   417 function sc_lcm() {
   418     var lcm = 1;
   419     for (var i = 0; i < arguments.length; i++) {
   420 	var f = Math.round(arguments[i] / sc_euclid_gcd(arguments[i], lcm));
   421 	lcm *= Math.abs(f);
   422     }
   423     return lcm;
   424 }
   426 // LIMITATION: numerator and denominator don't make sense in floating point world.
   427 //var SC_MAX_DECIMALS = 1000000
   428 //
   429 // function sc_numerator(x) {
   430 //     var rounded = Math.round(x * SC_MAX_DECIMALS);
   431 //     return Math.round(rounded / sc_euclid_gcd(rounded, SC_MAX_DECIMALS));
   432 // }
   434 // function sc_denominator(x) {
   435 //     var rounded = Math.round(x * SC_MAX_DECIMALS);
   436 //     return Math.round(SC_MAX_DECIMALS / sc_euclid_gcd(rounded, SC_MAX_DECIMALS));
   437 // }
   439 /*** META ((export #t)) */
   440 var sc_floor = Math.floor;
   441 /*** META ((export #t)) */
   442 var sc_ceiling = Math.ceil;
   443 /*** META ((export #t)) */
   444 var sc_truncate = parseInt;
   445 /*** META ((export #t)) */
   446 var sc_round = Math.round;
   448 // LIMITATION: sc_rationalize doesn't make sense in a floating point world.
   450 /*** META ((export #t)) */
   451 var sc_exp = Math.exp;
   452 /*** META ((export #t)) */
   453 var sc_log = Math.log;
   454 /*** META ((export #t)) */
   455 var sc_sin = Math.sin;
   456 /*** META ((export #t)) */
   457 var sc_cos = Math.cos;
   458 /*** META ((export #t)) */
   459 var sc_tan = Math.tan;
   460 /*** META ((export #t)) */
   461 var sc_asin = Math.asin;
   462 /*** META ((export #t)) */
   463 var sc_acos = Math.acos;
   464 /*** META ((export #t)) */
   465 var sc_atan = Math.atan;
   467 /*** META ((export #t)) */
   468 var sc_sqrt = Math.sqrt;
   469 /*** META ((export #t)) */
   470 var sc_expt = Math.pow;
   472 // LIMITATION: we don't have complex numbers.
   473 // LIMITATION: the following functions are hence not implemented.
   474 // LIMITATION: make-rectangular, make-polar, real-part, imag-part, magnitude, angle
   475 // LIMITATION: 2 argument atan
   477 /*** META ((export #t)
   478            (peephole (id)))
   479 */
   480 function sc_exact2inexact(x) {
   481     return x;
   482 }
   484 /*** META ((export #t)
   485            (peephole (id)))
   486 */
   487 function sc_inexact2exact(x) {
   488     return x;
   489 }
   491 function sc_number2jsstring(x, radix) {
   492     if (radix)
   493 	return x.toString(radix);
   494     else
   495 	return x.toString();
   496 }
   498 function sc_jsstring2number(s, radix) {
   499     if (s === "") return false;
   501     if (radix) {
   502 	var t = parseInt(s, radix);
   503 	if (!t && t !== 0) return false;
   504 	// verify that each char is in range. (parseInt ignores leading
   505 	// white and trailing chars)
   506 	var allowedChars = "01234567890abcdefghijklmnopqrstuvwxyz".substring(0, radix+1);
   507 	if ((new RegExp("^["+allowedChars+"]*$", "i")).test(s))
   508 	    return t;
   509 	else return false;
   510     } else {
   511 	var t = +s; // does not ignore trailing chars.
   512 	if (!t && t !== 0) return false;
   513 	// simply verify that first char is not whitespace.
   514 	var c = s.charAt(0);
   515 	// if +c is 0, but the char is not "0", then we have a whitespace.
   516 	if (+c === 0 && c !== "0") return false;
   517 	return t;
   518     }
   519 }
   521 /*** META ((export #t)
   522            (type bool)
   523            (peephole (not)))
   524 */
   525 function sc_not(b) {
   526     return b === false;
   527 }
   529 /*** META ((export #t)
   530            (type bool))
   531 */
   532 function sc_isBoolean(b) {
   533     return (b === true) || (b === false);
   534 }
   536 function sc_Pair(car, cdr) {
   537     this.car = car;
   538     this.cdr = cdr;
   539 }
   541 sc_Pair.prototype.toString = function() {
   542     return sc_toDisplayString(this);
   543 };
   544 sc_Pair.prototype.sc_toWriteOrDisplayString = function(writeOrDisplay) {
   545     var current = this;
   547     var res = "(";
   549     while(true) {
   550 	res += writeOrDisplay(current.car);
   551 	if (sc_isPair(current.cdr)) {
   552 	    res += " ";
   553 	    current = current.cdr;
   554 	} else if (current.cdr !== null) {
   555 	    res += " . " + writeOrDisplay(current.cdr);
   556 	    break;
   557 	} else // current.cdr == null
   558 	    break;
   559     }
   561     res += ")";
   563     return res;
   564 };
   565 sc_Pair.prototype.sc_toDisplayString = function() {
   566     return this.sc_toWriteOrDisplayString(sc_toDisplayString);
   567 };
   568 sc_Pair.prototype.sc_toWriteString = function() {
   569     return this.sc_toWriteOrDisplayString(sc_toWriteString);
   570 };
   571 // sc_Pair.prototype.sc_toWriteCircleString in IO.js
   573 /*** META ((export #t)
   574            (type bool)
   575            (peephole (postfix " instanceof sc_Pair")))
   576 */
   577 function sc_isPair(p) {
   578     return (p instanceof sc_Pair);
   579 }
   581 function sc_isPairEqual(p1, p2, comp) {
   582     return (comp(p1.car, p2.car) && comp(p1.cdr, p2.cdr));
   583 }
   585 /*** META ((export #t)
   586            (peephole (hole 2 "new sc_Pair(" car ", " cdr ")")))
   587 */
   588 function sc_cons(car, cdr) {
   589     return new sc_Pair(car, cdr);
   590 }
   592 /*** META ((export cons*)) */
   593 function sc_consStar() {
   594     var res = arguments[arguments.length - 1];
   595     for (var i = arguments.length-2; i >= 0; i--)
   596 	res = new sc_Pair(arguments[i], res);
   597     return res;
   598 }
   600 /*** META ((export #t)
   601            (peephole (postfix ".car")))
   602 */
   603 function sc_car(p) {
   604     return p.car;
   605 }
   607 /*** META ((export #t)
   608            (peephole (postfix ".cdr")))
   609 */
   610 function sc_cdr(p) {
   611     return p.cdr;
   612 }
   614 /*** META ((export #t)
   615            (peephole (hole 2 p ".car = " val)))
   616 */
   617 function sc_setCarBang(p, val) {
   618     p.car = val;
   619 }
   621 /*** META ((export #t)
   622            (peephole (hole 2 p ".cdr = " val)))
   623 */
   624 function sc_setCdrBang(p, val) {
   625     p.cdr = val;
   626 }
   628 /*** META ((export #t)
   629            (peephole (postfix ".car.car")))
   630 */
   631 function sc_caar(p) { return p.car.car; }
   632 /*** META ((export #t)
   633            (peephole (postfix ".cdr.car")))
   634 */
   635 function sc_cadr(p) { return p.cdr.car; }
   636 /*** META ((export #t)
   637            (peephole (postfix ".car.cdr")))
   638 */
   639 function sc_cdar(p) { return p.car.cdr; }
   640 /*** META ((export #t)
   641            (peephole (postfix ".cdr.cdr")))
   642 */
   643 function sc_cddr(p) { return p.cdr.cdr; }
   644 /*** META ((export #t)
   645            (peephole (postfix ".car.car.car")))
   646 */
   647 function sc_caaar(p) { return p.car.car.car; }
   648 /*** META ((export #t)
   649            (peephole (postfix ".car.cdr.car")))
   650 */
   651 function sc_cadar(p) { return p.car.cdr.car; }
   652 /*** META ((export #t)
   653            (peephole (postfix ".cdr.car.car")))
   654 */
   655 function sc_caadr(p) { return p.cdr.car.car; }
   656 /*** META ((export #t)
   657            (peephole (postfix ".cdr.cdr.car")))
   658 */
   659 function sc_caddr(p) { return p.cdr.cdr.car; }
   660 /*** META ((export #t)
   661            (peephole (postfix ".car.car.cdr")))
   662 */
   663 function sc_cdaar(p) { return p.car.car.cdr; }
   664 /*** META ((export #t)
   665            (peephole (postfix ".cdr.car.cdr")))
   666 */
   667 function sc_cdadr(p) { return p.cdr.car.cdr; }
   668 /*** META ((export #t)
   669            (peephole (postfix ".car.cdr.cdr")))
   670 */
   671 function sc_cddar(p) { return p.car.cdr.cdr; }
   672 /*** META ((export #t)
   673            (peephole (postfix ".cdr.cdr.cdr")))
   674 */
   675 function sc_cdddr(p) { return p.cdr.cdr.cdr; }
   676 /*** META ((export #t)
   677            (peephole (postfix ".car.car.car.car")))
   678 */
   679 function sc_caaaar(p) { return p.car.car.car.car; }
   680 /*** META ((export #t)
   681            (peephole (postfix ".car.cdr.car.car")))
   682 */
   683 function sc_caadar(p) { return p.car.cdr.car.car; }
   684 /*** META ((export #t)
   685            (peephole (postfix ".cdr.car.car.car")))
   686 */
   687 function sc_caaadr(p) { return p.cdr.car.car.car; }
   688 /*** META ((export #t)
   689            (peephole (postfix ".cdr.cdr.car.car")))
   690 */
   691 function sc_caaddr(p) { return p.cdr.cdr.car.car; }
   692 /*** META ((export #t)
   693            (peephole (postfix ".car.car.car.cdr")))
   694 */
   695 function sc_cdaaar(p) { return p.car.car.car.cdr; }
   696 /*** META ((export #t)
   697            (peephole (postfix ".car.cdr.car.cdr")))
   698 */
   699 function sc_cdadar(p) { return p.car.cdr.car.cdr; }
   700 /*** META ((export #t)
   701            (peephole (postfix ".cdr.car.car.cdr")))
   702 */
   703 function sc_cdaadr(p) { return p.cdr.car.car.cdr; }
   704 /*** META ((export #t)
   705            (peephole (postfix ".cdr.cdr.car.cdr")))
   706 */
   707 function sc_cdaddr(p) { return p.cdr.cdr.car.cdr; }
   708 /*** META ((export #t)
   709            (peephole (postfix ".car.car.cdr.car")))
   710 */
   711 function sc_cadaar(p) { return p.car.car.cdr.car; }
   712 /*** META ((export #t)
   713            (peephole (postfix ".car.cdr.cdr.car")))
   714 */
   715 function sc_caddar(p) { return p.car.cdr.cdr.car; }
   716 /*** META ((export #t)
   717            (peephole (postfix ".cdr.car.cdr.car")))
   718 */
   719 function sc_cadadr(p) { return p.cdr.car.cdr.car; }
   720 /*** META ((export #t)
   721            (peephole (postfix ".cdr.cdr.cdr.car")))
   722 */
   723 function sc_cadddr(p) { return p.cdr.cdr.cdr.car; }
   724 /*** META ((export #t)
   725            (peephole (postfix ".car.car.cdr.cdr")))
   726 */
   727 function sc_cddaar(p) { return p.car.car.cdr.cdr; }
   728 /*** META ((export #t)
   729            (peephole (postfix ".car.cdr.cdr.cdr")))
   730 */
   731 function sc_cdddar(p) { return p.car.cdr.cdr.cdr; }
   732 /*** META ((export #t)
   733            (peephole (postfix ".cdr.car.cdr.cdr")))
   734 */
   735 function sc_cddadr(p) { return p.cdr.car.cdr.cdr; }
   736 /*** META ((export #t)
   737            (peephole (postfix ".cdr.cdr.cdr.cdr")))
   738 */
   739 function sc_cddddr(p) { return p.cdr.cdr.cdr.cdr; }
   741 /*** META ((export #t)) */
   742 function sc_lastPair(l) {
   743     if (!sc_isPair(l)) sc_error("sc_lastPair: pair expected");
   744     var res = l;
   745     var cdr = l.cdr;
   746     while (sc_isPair(cdr)) {
   747 	res = cdr;
   748 	cdr = res.cdr;
   749     }
   750     return res;
   751 }
   753 /*** META ((export #t)
   754            (type bool)
   755            (peephole (postfix " === null")))
   756 */
   757 function sc_isNull(o) {
   758     return (o === null);
   759 }
   761 /*** META ((export #t)
   762            (type bool))
   763 */
   764 function sc_isList(o) {
   765     var rabbit;
   766     var turtle;
   768     var rabbit = o;
   769     var turtle = o;
   770     while (true) {
   771 	if (rabbit === null ||
   772 	    (rabbit instanceof sc_Pair && rabbit.cdr === null))
   773 	    return true;  // end of list
   774 	else if ((rabbit instanceof sc_Pair) &&
   775 		 (rabbit.cdr instanceof sc_Pair)) {
   776 	    rabbit = rabbit.cdr.cdr;
   777 	    turtle = turtle.cdr;
   778 	    if (rabbit === turtle) return false; // cycle
   779 	} else
   780 	    return false; // not pair
   781     }
   782 }
   784 /*** META ((export #t)) */
   785 function sc_list() {
   786     var res = null;
   787     var a = arguments;
   788     for (var i = a.length-1; i >= 0; i--)
   789 	res = new sc_Pair(a[i], res);
   790     return res;
   791 }
   793 /*** META ((export #t)) */
   794 function sc_iota(num, init) {
   795    var res = null;
   796    if (!init) init = 0;
   797    for (var i = num - 1; i >= 0; i--)
   798       res = new sc_Pair(i + init, res);
   799    return res;
   800 }
   802 /*** META ((export #t)) */
   803 function sc_makeList(nbEls, fill) {
   804     var res = null;
   805     for (var i = 0; i < nbEls; i++)
   806 	res = new sc_Pair(fill, res);
   807     return res;
   808 }
   810 /*** META ((export #t)) */
   811 function sc_length(l) {
   812     var res = 0;
   813     while (l !== null) {
   814 	res++;
   815 	l = l.cdr;
   816     }
   817     return res;
   818 }
   820 /*** META ((export #t)) */
   821 function sc_remq(o, l) {
   822     var dummy = { cdr : null };
   823     var tail = dummy;
   824     while (l !== null) {
   825 	if (l.car !== o) {
   826 	    tail.cdr = sc_cons(l.car, null);
   827 	    tail = tail.cdr;
   828 	}
   829 	l = l.cdr;
   830     }
   831     return dummy.cdr;
   832 }
   834 /*** META ((export #t)) */
   835 function sc_remqBang(o, l) {
   836     var dummy = { cdr : null };
   837     var tail = dummy;
   838     var needsAssig = true;
   839     while (l !== null) {
   840 	if (l.car === o) {
   841 	    needsAssig = true;
   842 	} else {
   843 	    if (needsAssig) {
   844 		tail.cdr = l;
   845 		needsAssig = false;
   846 	    }
   847 	    tail = l;
   848 	}
   849 	l = l.cdr;
   850     }
   851     tail.cdr = null;
   852     return dummy.cdr;
   853 }
   855 /*** META ((export #t)) */
   856 function sc_delete(o, l) {
   857     var dummy = { cdr : null };
   858     var tail = dummy;
   859     while (l !== null) {
   860 	if (!sc_isEqual(l.car, o)) {
   861 	    tail.cdr = sc_cons(l.car, null);
   862 	    tail = tail.cdr;
   863 	}
   864 	l = l.cdr;
   865     }
   866     return dummy.cdr;
   867 }
   869 /*** META ((export #t)) */
   870 function sc_deleteBang(o, l) {
   871     var dummy = { cdr : null };
   872     var tail = dummy;
   873     var needsAssig = true;
   874     while (l !== null) {
   875 	if (sc_isEqual(l.car, o)) {
   876 	    needsAssig = true;
   877 	} else {
   878 	    if (needsAssig) {
   879 		tail.cdr = l;
   880 		needsAssig = false;
   881 	    }
   882 	    tail = l;
   883 	}
   884 	l = l.cdr;
   885     }
   886     tail.cdr = null;
   887     return dummy.cdr;
   888 }
   890 function sc_reverseAppendBang(l1, l2) {
   891     var res = l2;
   892     while (l1 !== null) {
   893 	var tmp = res;
   894 	res = l1;
   895 	l1 = l1.cdr;
   896 	res.cdr = tmp;
   897     }
   898     return res;
   899 }
   901 function sc_dualAppend(l1, l2) {
   902     if (l1 === null) return l2;
   903     if (l2 === null) return l1;
   904     var rev = sc_reverse(l1);
   905     return sc_reverseAppendBang(rev, l2);
   906 }
   908 /*** META ((export #t)) */
   909 function sc_append() {
   910     if (arguments.length === 0)
   911 	return null;
   912     var res = arguments[arguments.length - 1];
   913     for (var i = arguments.length - 2; i >= 0; i--)
   914 	res = sc_dualAppend(arguments[i], res);
   915     return res;
   916 }
   918 function sc_dualAppendBang(l1, l2) {
   919     if (l1 === null) return l2;
   920     if (l2 === null) return l1;
   921     var tmp = l1;
   922     while (tmp.cdr !== null) tmp=tmp.cdr;
   923     tmp.cdr = l2;
   924     return l1;
   925 }
   927 /*** META ((export #t)) */
   928 function sc_appendBang() {
   929     var res = null;
   930     for (var i = 0; i < arguments.length; i++)
   931 	res = sc_dualAppendBang(res, arguments[i]);
   932     return res;
   933 }
   935 /*** META ((export #t)) */
   936 function sc_reverse(l1) {
   937     var res = null;
   938     while (l1 !== null) {
   939 	res = sc_cons(l1.car, res);
   940 	l1 = l1.cdr;
   941     }
   942     return res;
   943 }
   945 /*** META ((export #t)) */
   946 function sc_reverseBang(l) {
   947     return sc_reverseAppendBang(l, null);
   948 }
   950 /*** META ((export #t)) */
   951 function sc_listTail(l, k) {
   952     var res = l;
   953     for (var i = 0; i < k; i++) {
   954 	res = res.cdr;
   955     }
   956     return res;
   957 }
   959 /*** META ((export #t)) */
   960 function sc_listRef(l, k) {
   961     return sc_listTail(l, k).car;
   962 }
   964 /* // unoptimized generic versions
   965 function sc_memX(o, l, comp) {
   966     while (l != null) {
   967 	if (comp(l.car, o))
   968 	    return l;
   969 	l = l.cdr;
   970     }
   971     return false;
   972 }
   973 function sc_memq(o, l) { return sc_memX(o, l, sc_isEq); }
   974 function sc_memv(o, l) { return sc_memX(o, l, sc_isEqv); }
   975 function sc_member(o, l) { return sc_memX(o, l, sc_isEqual); }
   976 */
   978 /* optimized versions */
   979 /*** META ((export #t)) */
   980 function sc_memq(o, l) {
   981     while (l !== null) {
   982 	if (l.car === o)
   983 	    return l;
   984 	l = l.cdr;
   985     }
   986     return false;
   987 }
   988 /*** META ((export #t)) */
   989 function sc_memv(o, l) {
   990     while (l !== null) {
   991 	if (l.car === o)
   992 	    return l;
   993 	l = l.cdr;
   994     }
   995     return false;
   996 }
   997 /*** META ((export #t)) */
   998 function sc_member(o, l) {
   999     while (l !== null) {
  1000 	if (sc_isEqual(l.car,o))
  1001 	    return l;
  1002 	l = l.cdr;
  1004     return false;
  1007 /* // generic unoptimized versions
  1008 function sc_assX(o, al, comp) {
  1009     while (al != null) {
  1010 	if (comp(al.car.car, o))
  1011 	    return al.car;
  1012 	al = al.cdr;
  1014     return false;
  1016 function sc_assq(o, al) { return sc_assX(o, al, sc_isEq); }
  1017 function sc_assv(o, al) { return sc_assX(o, al, sc_isEqv); }
  1018 function sc_assoc(o, al) { return sc_assX(o, al, sc_isEqual); }
  1019 */
  1020 // optimized versions
  1021 /*** META ((export #t)) */
  1022 function sc_assq(o, al) {
  1023     while (al !== null) {
  1024 	if (al.car.car === o)
  1025 	    return al.car;
  1026 	al = al.cdr;
  1028     return false;
  1030 /*** META ((export #t)) */
  1031 function sc_assv(o, al) {
  1032     while (al !== null) {
  1033 	if (al.car.car === o)
  1034 	    return al.car;
  1035 	al = al.cdr;
  1037     return false;
  1039 /*** META ((export #t)) */
  1040 function sc_assoc(o, al) {
  1041     while (al !== null) {
  1042 	if (sc_isEqual(al.car.car, o))
  1043 	    return al.car;
  1044 	al = al.cdr;
  1046     return false;
  1049 /* can be used for mutable strings and characters */
  1050 function sc_isCharStringEqual(cs1, cs2) { return cs1.val === cs2.val; }
  1051 function sc_isCharStringLess(cs1, cs2) { return cs1.val < cs2.val; }
  1052 function sc_isCharStringGreater(cs1, cs2) { return cs1.val > cs2.val; }
  1053 function sc_isCharStringLessEqual(cs1, cs2) { return cs1.val <= cs2.val; }
  1054 function sc_isCharStringGreaterEqual(cs1, cs2) { return cs1.val >= cs2.val; }
  1055 function sc_isCharStringCIEqual(cs1, cs2)
  1056     { return cs1.val.toLowerCase() === cs2.val.toLowerCase(); }
  1057 function sc_isCharStringCILess(cs1, cs2)
  1058     { return cs1.val.toLowerCase() < cs2.val.toLowerCase(); }
  1059 function sc_isCharStringCIGreater(cs1, cs2)
  1060     { return cs1.val.toLowerCase() > cs2.val.toLowerCase(); }
  1061 function sc_isCharStringCILessEqual(cs1, cs2)
  1062     { return cs1.val.toLowerCase() <= cs2.val.toLowerCase(); }
  1063 function sc_isCharStringCIGreaterEqual(cs1, cs2)
  1064     { return cs1.val.toLowerCase() >= cs2.val.toLowerCase(); }
  1069 function sc_Char(c) {
  1070     var cached = sc_Char.lazy[c];
  1071     if (cached)
  1072 	return cached;
  1073     this.val = c;
  1074     sc_Char.lazy[c] = this;
  1075     // add return, so FF does not complain.
  1076     return undefined;
  1078 sc_Char.lazy = new Object();
  1079 // thanks to Eric
  1080 sc_Char.char2readable = {
  1081     "\000": "#\\null",
  1082     "\007": "#\\bell",
  1083     "\010": "#\\backspace",
  1084     "\011": "#\\tab",
  1085     "\012": "#\\newline",
  1086     "\014": "#\\page",
  1087     "\015": "#\\return",
  1088     "\033": "#\\escape",
  1089     "\040": "#\\space",
  1090     "\177": "#\\delete",
  1092   /* poeticless names */
  1093     "\001": "#\\soh",
  1094     "\002": "#\\stx",
  1095     "\003": "#\\etx",
  1096     "\004": "#\\eot",
  1097     "\005": "#\\enq",
  1098     "\006": "#\\ack",
  1100     "\013": "#\\vt",
  1101     "\016": "#\\so",
  1102     "\017": "#\\si",
  1104     "\020": "#\\dle",
  1105     "\021": "#\\dc1",
  1106     "\022": "#\\dc2",
  1107     "\023": "#\\dc3",
  1108     "\024": "#\\dc4",
  1109     "\025": "#\\nak",
  1110     "\026": "#\\syn",
  1111     "\027": "#\\etb",
  1113     "\030": "#\\can",
  1114     "\031": "#\\em",
  1115     "\032": "#\\sub",
  1116     "\033": "#\\esc",
  1117     "\034": "#\\fs",
  1118     "\035": "#\\gs",
  1119     "\036": "#\\rs",
  1120     "\037": "#\\us"};
  1122 sc_Char.readable2char = {
  1123     "null": "\000",
  1124     "bell": "\007",
  1125     "backspace": "\010",
  1126     "tab": "\011",
  1127     "newline": "\012",
  1128     "page": "\014",
  1129     "return": "\015",
  1130     "escape": "\033",
  1131     "space": "\040",
  1132     "delete": "\000",
  1133     "soh": "\001",
  1134     "stx": "\002",
  1135     "etx": "\003",
  1136     "eot": "\004",
  1137     "enq": "\005",
  1138     "ack": "\006",
  1139     "bel": "\007",
  1140     "bs": "\010",
  1141     "ht": "\011",
  1142     "nl": "\012",
  1143     "vt": "\013",
  1144     "np": "\014",
  1145     "cr": "\015",
  1146     "so": "\016",
  1147     "si": "\017",
  1148     "dle": "\020",
  1149     "dc1": "\021",
  1150     "dc2": "\022",
  1151     "dc3": "\023",
  1152     "dc4": "\024",
  1153     "nak": "\025",
  1154     "syn": "\026",
  1155     "etb": "\027",
  1156     "can": "\030",
  1157     "em": "\031",
  1158     "sub": "\032",
  1159     "esc": "\033",
  1160     "fs": "\034",
  1161     "gs": "\035",
  1162     "rs": "\036",
  1163     "us": "\037",
  1164     "sp": "\040",
  1165     "del": "\177"};
  1167 sc_Char.prototype.toString = function() {
  1168     return this.val;
  1169 };
  1170 // sc_toDisplayString == toString
  1171 sc_Char.prototype.sc_toWriteString = function() {
  1172     var entry = sc_Char.char2readable[this.val];
  1173     if (entry)
  1174 	return entry;
  1175     else
  1176 	return "#\\" + this.val;
  1177 };
  1179 /*** META ((export #t)
  1180            (type bool)
  1181            (peephole (postfix "instanceof sc_Char")))
  1182 */
  1183 function sc_isChar(c) {
  1184     return (c instanceof sc_Char);
  1187 /*** META ((export char=?)
  1188            (type bool)
  1189            (peephole (hole 2 c1 ".val === " c2 ".val")))
  1190 */
  1191 var sc_isCharEqual = sc_isCharStringEqual;
  1192 /*** META ((export char<?)
  1193            (type bool)
  1194            (peephole (hole 2 c1 ".val < " c2 ".val")))
  1195 */
  1196 var sc_isCharLess = sc_isCharStringLess;
  1197 /*** META ((export char>?)
  1198            (type bool)
  1199            (peephole (hole 2 c1 ".val > " c2 ".val")))
  1200 */
  1201 var sc_isCharGreater = sc_isCharStringGreater;
  1202 /*** META ((export char<=?)
  1203            (type bool)
  1204            (peephole (hole 2 c1 ".val <= " c2 ".val")))
  1205 */
  1206 var sc_isCharLessEqual = sc_isCharStringLessEqual;
  1207 /*** META ((export char>=?)
  1208            (type bool)
  1209            (peephole (hole 2 c1 ".val >= " c2 ".val")))
  1210 */
  1211 var sc_isCharGreaterEqual = sc_isCharStringGreaterEqual;
  1212 /*** META ((export char-ci=?)
  1213            (type bool)
  1214            (peephole (hole 2 c1 ".val.toLowerCase() === " c2 ".val.toLowerCase()")))
  1215 */
  1216 var sc_isCharCIEqual = sc_isCharStringCIEqual;
  1217 /*** META ((export char-ci<?)
  1218            (type bool)
  1219            (peephole (hole 2 c1 ".val.toLowerCase() < " c2 ".val.toLowerCase()")))
  1220 */
  1221 var sc_isCharCILess = sc_isCharStringCILess;
  1222 /*** META ((export char-ci>?)
  1223            (type bool)
  1224            (peephole (hole 2 c1 ".val.toLowerCase() > " c2 ".val.toLowerCase()")))
  1225 */
  1226 var sc_isCharCIGreater = sc_isCharStringCIGreater;
  1227 /*** META ((export char-ci<=?)
  1228            (type bool)
  1229            (peephole (hole 2 c1 ".val.toLowerCase() <= " c2 ".val.toLowerCase()")))
  1230 */
  1231 var sc_isCharCILessEqual = sc_isCharStringCILessEqual;
  1232 /*** META ((export char-ci>=?)
  1233            (type bool)
  1234            (peephole (hole 2 c1 ".val.toLowerCase() >= " c2 ".val.toLowerCase()")))
  1235 */
  1236 var sc_isCharCIGreaterEqual = sc_isCharStringCIGreaterEqual;
  1238 var SC_NUMBER_CLASS = "0123456789";
  1239 var SC_WHITESPACE_CLASS = ' \r\n\t\f';
  1240 var SC_LOWER_CLASS = 'abcdefghijklmnopqrstuvwxyz';
  1241 var SC_UPPER_CLASS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
  1243 function sc_isCharOfClass(c, cl) { return (cl.indexOf(c) != -1); }
  1244 /*** META ((export #t)
  1245            (type bool))
  1246 */
  1247 function sc_isCharAlphabetic(c)
  1248     { return sc_isCharOfClass(c.val, SC_LOWER_CLASS) ||
  1249 	  sc_isCharOfClass(c.val, SC_UPPER_CLASS); }
  1250 /*** META ((export #t)
  1251            (type bool)
  1252            (peephole (hole 1 "SC_NUMBER_CLASS.indexOf(" c ".val) != -1")))
  1253 */
  1254 function sc_isCharNumeric(c)
  1255     { return sc_isCharOfClass(c.val, SC_NUMBER_CLASS); }
  1256 /*** META ((export #t)
  1257            (type bool))
  1258 */
  1259 function sc_isCharWhitespace(c) {
  1260     var tmp = c.val;
  1261     return tmp === " " || tmp === "\r" || tmp === "\n" || tmp === "\t" || tmp === "\f";
  1263 /*** META ((export #t)
  1264            (type bool)
  1265            (peephole (hole 1 "SC_UPPER_CLASS.indexOf(" c ".val) != -1")))
  1266 */
  1267 function sc_isCharUpperCase(c)
  1268     { return sc_isCharOfClass(c.val, SC_UPPER_CLASS); }
  1269 /*** META ((export #t)
  1270            (type bool)
  1271            (peephole (hole 1 "SC_LOWER_CLASS.indexOf(" c ".val) != -1")))
  1272 */
  1273 function sc_isCharLowerCase(c)
  1274     { return sc_isCharOfClass(c.val, SC_LOWER_CLASS); }
  1276 /*** META ((export #t)
  1277            (peephole (postfix ".val.charCodeAt(0)")))
  1278 */
  1279 function sc_char2integer(c)
  1280     { return c.val.charCodeAt(0); }
  1281 /*** META ((export #t)
  1282            (peephole (hole 1 "new sc_Char(String.fromCharCode(" n "))")))
  1283 */
  1284 function sc_integer2char(n)
  1285     { return new sc_Char(String.fromCharCode(n)); }
  1287 /*** META ((export #t)
  1288            (peephole (hole 1 "new sc_Char(" c ".val.toUpperCase())")))
  1289 */
  1290 function sc_charUpcase(c)
  1291     { return new sc_Char(c.val.toUpperCase()); }
  1292 /*** META ((export #t)
  1293            (peephole (hole 1 "new sc_Char(" c ".val.toLowerCase())")))
  1294 */
  1295 function sc_charDowncase(c)
  1296     { return new sc_Char(c.val.toLowerCase()); }
  1298 function sc_makeJSStringOfLength(k, c) {
  1299     var fill;
  1300     if (c === undefined)
  1301 	fill = " ";
  1302     else
  1303 	fill = c;
  1304     var res = "";
  1305     var len = 1;
  1306     // every round doubles the size of fill.
  1307     while (k >= len) {
  1308 	if (k & len)
  1309 	    res = res.concat(fill);
  1310 	fill = fill.concat(fill);
  1311 	len *= 2;
  1313     return res;
  1316 function sc_makejsString(k, c) {
  1317     var fill;
  1318     if (c)
  1319 	fill = c.val;
  1320     else
  1321 	fill = " ";
  1322     return sc_makeJSStringOfLength(k, fill);
  1325 function sc_jsstring2list(s) {
  1326     var res = null;
  1327     for (var i = s.length - 1; i >= 0; i--)
  1328 	res = sc_cons(new sc_Char(s.charAt(i)), res);
  1329     return res;
  1332 function sc_list2jsstring(l) {
  1333     var a = new Array();
  1334     while(l !== null) {
  1335 	a.push(l.car.val);
  1336 	l = l.cdr;
  1338     return "".concat.apply("", a);
  1341 var sc_Vector = Array;
  1343 sc_Vector.prototype.sc_toWriteOrDisplayString = function(writeOrDisplay) {
  1344     if (this.length === 0) return "#()";
  1346     var res = "#(" + writeOrDisplay(this[0]);
  1347     for (var i = 1; i < this.length; i++)
  1348 	res += " " + writeOrDisplay(this[i]);
  1349     res += ")";
  1350     return res;
  1351 };
  1352 sc_Vector.prototype.sc_toDisplayString = function() {
  1353     return this.sc_toWriteOrDisplayString(sc_toDisplayString);
  1354 };
  1355 sc_Vector.prototype.sc_toWriteString = function() {
  1356     return this.sc_toWriteOrDisplayString(sc_toWriteString);
  1357 };
  1359 /*** META ((export vector? array?)
  1360            (type bool)
  1361            (peephole (postfix " instanceof sc_Vector")))
  1362 */
  1363 function sc_isVector(v) {
  1364     return (v instanceof sc_Vector);
  1367 // only applies to vectors
  1368 function sc_isVectorEqual(v1, v2, comp) {
  1369     if (v1.length !== v2.length) return false;
  1370     for (var i = 0; i < v1.length; i++)
  1371 	if (!comp(v1[i], v2[i])) return false;
  1372     return true;
  1375 /*** META ((export make-vector make-array)) */
  1376 function sc_makeVector(size, fill) {
  1377     var a = new sc_Vector(size);
  1378     if (fill !== undefined)
  1379 	sc_vectorFillBang(a, fill);
  1380     return a;
  1383 /*** META ((export vector array)
  1384            (peephole (vector)))
  1385 */
  1386 function sc_vector() {
  1387     var a = new sc_Vector();
  1388     for (var i = 0; i < arguments.length; i++)
  1389 	a.push(arguments[i]);
  1390     return a;
  1393 /*** META ((export vector-length array-length)
  1394            (peephole (postfix ".length")))
  1395 */
  1396 function sc_vectorLength(v) {
  1397     return v.length;
  1400 /*** META ((export vector-ref array-ref)
  1401            (peephole (hole 2 v "[" pos "]")))
  1402 */
  1403 function sc_vectorRef(v, pos) {
  1404     return v[pos];
  1407 /*** META ((export vector-set! array-set!)
  1408            (peephole (hole 3 v "[" pos "] = " val)))
  1409 */
  1410 function sc_vectorSetBang(v, pos, val) {
  1411     v[pos] = val;
  1414 /*** META ((export vector->list array->list)) */
  1415 function sc_vector2list(a) {
  1416     var res = null;
  1417     for (var i = a.length-1; i >= 0; i--)
  1418 	res = sc_cons(a[i], res);
  1419     return res;
  1422 /*** META ((export list->vector list->array)) */
  1423 function sc_list2vector(l) {
  1424     var a = new sc_Vector();
  1425     while(l !== null) {
  1426 	a.push(l.car);
  1427 	l = l.cdr;
  1429     return a;
  1432 /*** META ((export vector-fill! array-fill!)) */
  1433 function sc_vectorFillBang(a, fill) {
  1434     for (var i = 0; i < a.length; i++)
  1435 	a[i] = fill;
  1439 /*** META ((export #t)) */
  1440 function sc_copyVector(a, len) {
  1441     if (len <= a.length)
  1442 	return a.slice(0, len);
  1443     else {
  1444 	var tmp = a.concat();
  1445 	tmp.length = len;
  1446 	return tmp;
  1450 /*** META ((export #t)
  1451            (peephole (hole 3 a ".slice(" start "," end ")")))
  1452 */
  1453 function sc_vectorCopy(a, start, end) {
  1454     return a.slice(start, end);
  1457 /*** META ((export #t)) */
  1458 function sc_vectorCopyBang(target, tstart, source, sstart, send) {
  1459     if (!sstart) sstart = 0;
  1460     if (!send) send = source.length;
  1462     // if target == source we don't want to overwrite not yet copied elements.
  1463     if (tstart <= sstart) {
  1464 	for (var i = tstart, j = sstart; j < send; i++, j++) {
  1465 	    target[i] = source[j];
  1467     } else {
  1468 	var diff = send - sstart;
  1469 	for (var i = tstart + diff - 1, j = send - 1;
  1470 	     j >= sstart;
  1471 	     i--, j--) {
  1472 	    target[i] = source[j];
  1475     return target;
  1478 /*** META ((export #t)
  1479            (type bool)
  1480            (peephole (hole 1 "typeof " o " === 'function'")))
  1481 */
  1482 function sc_isProcedure(o) {
  1483     return (typeof o === "function");
  1486 /*** META ((export #t)) */
  1487 function sc_apply(proc) {
  1488     var args = new Array();
  1489     // first part of arguments are not in list-form.
  1490     for (var i = 1; i < arguments.length - 1; i++)
  1491 	args.push(arguments[i]);
  1492     var l = arguments[arguments.length - 1];
  1493     while (l !== null) {
  1494 	args.push(l.car);
  1495 	l = l.cdr;
  1497     return proc.apply(null, args);
  1500 /*** META ((export #t)) */
  1501 function sc_map(proc, l1) {
  1502     if (l1 === undefined)
  1503 	return null;
  1504     // else
  1505     var nbApplyArgs = arguments.length - 1;
  1506     var applyArgs = new Array(nbApplyArgs);
  1507     var revres = null;
  1508     while (l1 !== null) {
  1509 	for (var i = 0; i < nbApplyArgs; i++) {
  1510 	    applyArgs[i] = arguments[i + 1].car;
  1511 	    arguments[i + 1] = arguments[i + 1].cdr;
  1513 	revres = sc_cons(proc.apply(null, applyArgs), revres);
  1515     return sc_reverseAppendBang(revres, null);
  1518 /*** META ((export #t)) */
  1519 function sc_mapBang(proc, l1) {
  1520     if (l1 === undefined)
  1521 	return null;
  1522     // else
  1523     var l1_orig = l1;
  1524     var nbApplyArgs = arguments.length - 1;
  1525     var applyArgs = new Array(nbApplyArgs);
  1526     while (l1 !== null) {
  1527 	var tmp = l1;
  1528 	for (var i = 0; i < nbApplyArgs; i++) {
  1529 	    applyArgs[i] = arguments[i + 1].car;
  1530 	    arguments[i + 1] = arguments[i + 1].cdr;
  1532 	tmp.car = proc.apply(null, applyArgs);
  1534     return l1_orig;
  1537 /*** META ((export #t)) */
  1538 function sc_forEach(proc, l1) {
  1539     if (l1 === undefined)
  1540 	return undefined;
  1541     // else
  1542     var nbApplyArgs = arguments.length - 1;
  1543     var applyArgs = new Array(nbApplyArgs);
  1544     while (l1 !== null) {
  1545 	for (var i = 0; i < nbApplyArgs; i++) {
  1546 	    applyArgs[i] = arguments[i + 1].car;
  1547 	    arguments[i + 1] = arguments[i + 1].cdr;
  1549 	proc.apply(null, applyArgs);
  1551     // add return so FF does not complain.
  1552     return undefined;
  1555 /*** META ((export #t)) */
  1556 function sc_filter(proc, l1) {
  1557     var dummy = { cdr : null };
  1558     var tail = dummy;
  1559     while (l1 !== null) {
  1560 	if (proc(l1.car) !== false) {
  1561 	    tail.cdr = sc_cons(l1.car, null);
  1562 	    tail = tail.cdr;
  1564 	l1 = l1.cdr;
  1566     return dummy.cdr;
  1569 /*** META ((export #t)) */
  1570 function sc_filterBang(proc, l1) {
  1571     var head = sc_cons("dummy", l1);
  1572     var it = head;
  1573     var next = l1;
  1574     while (next !== null) {
  1575         if (proc(next.car) !== false) {
  1576 	    it.cdr = next
  1577 	    it = next;
  1579 	next = next.cdr;
  1581     it.cdr = null;
  1582     return head.cdr;
  1585 function sc_filterMap1(proc, l1) {
  1586     var revres = null;
  1587     while (l1 !== null) {
  1588         var tmp = proc(l1.car)
  1589         if (tmp !== false) revres = sc_cons(tmp, revres);
  1590         l1 = l1.cdr;
  1592     return sc_reverseAppendBang(revres, null);
  1594 function sc_filterMap2(proc, l1, l2) {
  1595     var revres = null;
  1596     while (l1 !== null) {
  1597         var tmp = proc(l1.car, l2.car);
  1598         if(tmp !== false) revres = sc_cons(tmp, revres);
  1599 	l1 = l1.cdr;
  1600 	l2 = l2.cdr
  1602     return sc_reverseAppendBang(revres, null);
  1605 /*** META ((export #t)) */
  1606 function sc_filterMap(proc, l1, l2, l3) {
  1607     if (l2 === undefined)
  1608 	return sc_filterMap1(proc, l1);
  1609     else if (l3 === undefined)
  1610 	return sc_filterMap2(proc, l1, l2);
  1611     // else
  1612     var nbApplyArgs = arguments.length - 1;
  1613     var applyArgs = new Array(nbApplyArgs);
  1614     var revres = null;
  1615     while (l1 !== null) {
  1616 	for (var i = 0; i < nbApplyArgs; i++) {
  1617 	    applyArgs[i] = arguments[i + 1].car;
  1618 	    arguments[i + 1] = arguments[i + 1].cdr;
  1620 	var tmp = proc.apply(null, applyArgs);
  1621 	if(tmp !== false) revres = sc_cons(tmp, revres);
  1623     return sc_reverseAppendBang(revres, null);
  1626 /*** META ((export #t)) */
  1627 function sc_any(proc, l) {
  1628     var revres = null;
  1629     while (l !== null) {
  1630         var tmp = proc(l.car);
  1631         if(tmp !== false) return tmp;
  1632 	l = l.cdr;
  1634     return false;
  1637 /*** META ((export any?)
  1638            (peephole (hole 2 "sc_any(" proc "," l ") !== false")))
  1639 */
  1640 function sc_anyPred(proc, l) {
  1641     return sc_any(proc, l)!== false;
  1644 /*** META ((export #t)) */
  1645 function sc_every(proc, l) {
  1646     var revres = null;
  1647     var tmp = true;
  1648     while (l !== null) {
  1649         tmp = proc(l.car);
  1650         if (tmp === false) return false;
  1651 	l = l.cdr;
  1653     return tmp;
  1656 /*** META ((export every?)
  1657            (peephole (hole 2 "sc_every(" proc "," l ") !== false")))
  1658 */
  1659 function sc_everyPred(proc, l) {
  1660     var tmp = sc_every(proc, l);
  1661     if (tmp !== false) return true;
  1662     return false;
  1665 /*** META ((export #t)
  1666            (peephole (postfix "()")))
  1667 */
  1668 function sc_force(o) {
  1669     return o();
  1672 /*** META ((export #t)) */
  1673 function sc_makePromise(proc) {
  1674     var isResultReady = false;
  1675     var result = undefined;
  1676     return function() {
  1677 	if (!isResultReady) {
  1678 	    var tmp = proc();
  1679 	    if (!isResultReady) {
  1680 		isResultReady = true;
  1681 		result = tmp;
  1684 	return result;
  1685     };
  1688 function sc_Values(values) {
  1689     this.values = values;
  1692 /*** META ((export #t)
  1693            (peephole (values)))
  1694 */
  1695 function sc_values() {
  1696     if (arguments.length === 1)
  1697 	return arguments[0];
  1698     else
  1699 	return new sc_Values(arguments);
  1702 /*** META ((export #t)) */
  1703 function sc_callWithValues(producer, consumer) {
  1704     var produced = producer();
  1705     if (produced instanceof sc_Values)
  1706 	return consumer.apply(null, produced.values);
  1707     else
  1708 	return consumer(produced);
  1711 /*** META ((export #t)) */
  1712 function sc_dynamicWind(before, thunk, after) {
  1713     before();
  1714     try {
  1715 	var res = thunk();
  1716 	return res;
  1717     } finally {
  1718 	after();
  1723 // TODO: eval/scheme-report-environment/null-environment/interaction-environment
  1725 // LIMITATION: 'load' doesn't exist without files.
  1726 // LIMITATION: transcript-on/transcript-off doesn't exist without files.
  1729 function sc_Struct(name) {
  1730     this.name = name;
  1732 sc_Struct.prototype.sc_toDisplayString = function() {
  1733     return "#<struct" + sc_hash(this) + ">";
  1734 };
  1735 sc_Struct.prototype.sc_toWriteString = sc_Struct.prototype.sc_toDisplayString;
  1737 /*** META ((export #t)
  1738            (peephole (hole 1 "new sc_Struct(" name ")")))
  1739 */
  1740 function sc_makeStruct(name) {
  1741     return new sc_Struct(name);
  1744 /*** META ((export #t)
  1745            (type bool)
  1746            (peephole (postfix " instanceof sc_Struct")))
  1747 */
  1748 function sc_isStruct(o) {
  1749     return (o instanceof sc_Struct);
  1752 /*** META ((export #t)
  1753            (type bool)
  1754            (peephole (hole 2 "(" 1 " instanceof sc_Struct) && ( " 1 ".name === " 0 ")")))
  1755 */
  1756 function sc_isStructNamed(name, s) {
  1757     return ((s instanceof sc_Struct) && (s.name === name));
  1760 /*** META ((export struct-field)
  1761            (peephole (hole 3 0 "[" 2 "]")))
  1762 */
  1763 function sc_getStructField(s, name, field) {
  1764     return s[field];
  1767 /*** META ((export struct-field-set!)
  1768            (peephole (hole 4 0 "[" 2 "] = " 3)))
  1769 */
  1770 function sc_setStructFieldBang(s, name, field, val) {
  1771     s[field] = val;
  1774 /*** META ((export #t)
  1775            (peephole (prefix "~")))
  1776 */
  1777 function sc_bitNot(x) {
  1778     return ~x;
  1781 /*** META ((export #t)
  1782            (peephole (infix 2 2 "&")))
  1783 */
  1784 function sc_bitAnd(x, y) {
  1785     return x & y;
  1788 /*** META ((export #t)
  1789            (peephole (infix 2 2 "|")))
  1790 */
  1791 function sc_bitOr(x, y) {
  1792     return x | y;
  1795 /*** META ((export #t)
  1796            (peephole (infix 2 2 "^")))
  1797 */
  1798 function sc_bitXor(x, y) {
  1799     return x ^ y;
  1802 /*** META ((export #t)
  1803            (peephole (infix 2 2 "<<")))
  1804 */
  1805 function sc_bitLsh(x, y) {
  1806     return x << y;
  1809 /*** META ((export #t)
  1810            (peephole (infix 2 2 ">>")))
  1811 */
  1812 function sc_bitRsh(x, y) {
  1813     return x >> y;
  1816 /*** META ((export #t)
  1817            (peephole (infix 2 2 ">>>")))
  1818 */
  1819 function sc_bitUrsh(x, y) {
  1820     return x >>> y;
  1823 /*** META ((export js-field js-property)
  1824            (peephole (hole 2 o "[" field "]")))
  1825 */
  1826 function sc_jsField(o, field) {
  1827     return o[field];
  1830 /*** META ((export js-field-set! js-property-set!)
  1831            (peephole (hole 3 o "[" field "] = " val)))
  1832 */
  1833 function sc_setJsFieldBang(o, field, val) {
  1834     return o[field] = val;
  1837 /*** META ((export js-field-delete! js-property-delete!)
  1838            (peephole (hole 2 "delete" o "[" field "]")))
  1839 */
  1840 function sc_deleteJsFieldBang(o, field) {
  1841     delete o[field];
  1844 /*** META ((export #t)
  1845            (peephole (jsCall)))
  1846 */
  1847 function sc_jsCall(o, fun) {
  1848     var args = new Array();
  1849     for (var i = 2; i < arguments.length; i++)
  1850 	args[i-2] = arguments[i];
  1851     return fun.apply(o, args);
  1854 /*** META ((export #t)
  1855            (peephole (jsMethodCall)))
  1856 */
  1857 function sc_jsMethodCall(o, field) {
  1858     var args = new Array();
  1859     for (var i = 2; i < arguments.length; i++)
  1860 	args[i-2] = arguments[i];
  1861     return o[field].apply(o, args);
  1864 /*** META ((export new js-new)
  1865            (peephole (jsNew)))
  1866 */
  1867 function sc_jsNew(c) {
  1868     var evalStr = "new c(";
  1869     evalStr +=arguments.length > 1? "arguments[1]": "";
  1870     for (var i = 2; i < arguments.length; i++)
  1871 	evalStr += ", arguments[" + i + "]";
  1872     evalStr +=")";
  1873     return eval(evalStr);
  1876 // ======================== RegExp ====================
  1877 /*** META ((export #t)) */
  1878 function sc_pregexp(re) {
  1879     return new RegExp(sc_string2jsstring(re));
  1882 /*** META ((export #t)) */
  1883 function sc_pregexpMatch(re, s) {
  1884     var reg = (re instanceof RegExp) ? re : sc_pregexp(re);
  1885     var tmp = reg.exec(sc_string2jsstring(s));
  1887     if (tmp == null) return false;
  1889     var res = null;
  1890     for (var i = tmp.length-1; i >= 0; i--) {
  1891 	if (tmp[i] !== null) {
  1892 	    res = sc_cons(sc_jsstring2string(tmp[i]), res);
  1893 	} else {
  1894 	    res = sc_cons(false, res);
  1897     return res;
  1900 /*** META ((export #t)) */
  1901 function sc_pregexpReplace(re, s1, s2) {
  1902    var reg;
  1903    var jss1 = sc_string2jsstring(s1);
  1904    var jss2 = sc_string2jsstring(s2);
  1906    if (re instanceof RegExp) {
  1907        if (re.global)
  1908 	   reg = re;
  1909        else
  1910 	   reg = new RegExp(re.source);
  1911    } else {
  1912        reg = new RegExp(sc_string2jsstring(re));
  1915    return jss1.replace(reg, jss2);
  1918 /*** META ((export pregexp-replace*)) */
  1919 function sc_pregexpReplaceAll(re, s1, s2) {
  1920    var reg;
  1921    var jss1 = sc_string2jsstring(s1);
  1922    var jss2 = sc_string2jsstring(s2);
  1924    if (re instanceof RegExp) {
  1925       if (re.global)
  1926 	  reg = re;
  1927       else
  1928 	  reg = new RegExp(re.source, "g");
  1929    } else {
  1930        reg = new RegExp(sc_string2jsstring(re), "g");
  1933    return jss1.replace(reg, jss2);
  1936 /*** META ((export #t)) */
  1937 function sc_pregexpSplit(re, s) {
  1938    var reg = ((re instanceof RegExp) ?
  1939 	      re :
  1940 	      new RegExp(sc_string2jsstring(re)));
  1941    var jss = sc_string2jsstring(s);
  1942    var tmp = jss.split(reg);
  1944    if (tmp == null) return false;
  1946    return sc_vector2list(tmp);
  1950 /* =========================================================================== */
  1951 /* Other library stuff */
  1952 /* =========================================================================== */
  1954 /*** META ((export #t)
  1955            (peephole (hole 1 "Math.floor(Math.random()*" 'n ")")))
  1956 */
  1957 function sc_random(n) {
  1958     return Math.floor(Math.random()*n);
  1961 /*** META ((export current-date)
  1962            (peephole (hole 0 "new Date()")))
  1963 */
  1964 function sc_currentDate() {
  1965    return new Date();
  1968 function sc_Hashtable() {
  1970 sc_Hashtable.prototype.toString = function() {
  1971     return "#{%hashtable}";
  1972 };
  1973 // sc_toWriteString == sc_toDisplayString == toString
  1975 function sc_HashtableElement(key, val) {
  1976     this.key = key;
  1977     this.val = val;
  1980 /*** META ((export #t)
  1981            (peephole (hole 0 "new sc_Hashtable()")))
  1982 */
  1983 function sc_makeHashtable() {
  1984     return new sc_Hashtable();
  1987 /*** META ((export #t)) */
  1988 function sc_hashtablePutBang(ht, key, val) {
  1989     var hash = sc_hash(key);
  1990     ht[hash] = new sc_HashtableElement(key, val);
  1993 /*** META ((export #t)) */
  1994 function sc_hashtableGet(ht, key) {
  1995     var hash = sc_hash(key);
  1996     if (hash in ht)
  1997 	return ht[hash].val;
  1998     else
  1999 	return false;
  2002 /*** META ((export #t)) */
  2003 function sc_hashtableForEach(ht, f) {
  2004     for (var v in ht) {
  2005 	if (ht[v] instanceof sc_HashtableElement)
  2006 	    f(ht[v].key, ht[v].val);
  2010 /*** META ((export hashtable-contains?)
  2011            (peephole (hole 2 "sc_hash(" 1 ") in " 0)))
  2012 */
  2013 function sc_hashtableContains(ht, key) {
  2014     var hash = sc_hash(key);
  2015     if (hash in ht)
  2016 	return true;
  2017     else
  2018 	return false;
  2021 var SC_HASH_COUNTER = 0;
  2023 function sc_hash(o) {
  2024     if (o === null)
  2025 	return "null";
  2026     else if (o === undefined)
  2027 	return "undefined";
  2028     else if (o === true)
  2029 	return "true";
  2030     else if (o === false)
  2031 	return "false";
  2032     else if (typeof o === "number")
  2033 	return "num-" + o;
  2034     else if (typeof o === "string")
  2035 	return "jsstr-" + o;
  2036     else if (o.sc_getHash)
  2037 	return o.sc_getHash();
  2038     else
  2039 	return sc_counterHash.call(o);
  2041 function sc_counterHash() {
  2042     if (!this.sc_hash) {
  2043 	this.sc_hash = "hash-" + SC_HASH_COUNTER;
  2044 	SC_HASH_COUNTER++;
  2046     return this.sc_hash;
  2049 function sc_Trampoline(args, maxTailCalls) {
  2050     this['__trampoline return__'] = true;
  2051     this.args = args;
  2052     this.MAX_TAIL_CALLs = maxTailCalls;
  2054 // TODO: call/cc stuff
  2055 sc_Trampoline.prototype.restart = function() {
  2056     var o = this;
  2057     while (true) {
  2058 	// set both globals.
  2059 	SC_TAIL_OBJECT.calls = o.MAX_TAIL_CALLs-1;
  2060 	var fun = o.args.callee;
  2061 	var res = fun.apply(SC_TAIL_OBJECT, o.args);
  2062 	if (res instanceof sc_Trampoline)
  2063 	    o = res;
  2064 	else
  2065 	    return res;
  2069 /*** META ((export bind-exit-lambda)) */
  2070 function sc_bindExitLambda(proc) {
  2071     var escape_obj = new sc_BindExitException();
  2072     var escape = function(res) {
  2073 	escape_obj.res = res;
  2074 	throw escape_obj;
  2075     };
  2076     try {
  2077 	return proc(escape);
  2078     } catch(e) {
  2079 	if (e === escape_obj) {
  2080 	    return e.res;
  2082 	throw e;
  2085 function sc_BindExitException() {
  2086     this._internalException = true;
  2089 var SC_SCM2JS_GLOBALS = new Object();
  2091 // default tail-call depth.
  2092 // normally the program should set it again. but just in case...
  2093 var SC_TAIL_OBJECT = new Object();
  2094 SC_SCM2JS_GLOBALS.TAIL_OBJECT = SC_TAIL_OBJECT;
  2095 // ======================== I/O =======================
  2097 /*------------------------------------------------------------------*/
  2099 function sc_EOF() {
  2101 var SC_EOF_OBJECT = new sc_EOF();
  2103 function sc_Port() {
  2106 /* --------------- Input ports -------------------------------------*/
  2108 function sc_InputPort() {
  2110 sc_InputPort.prototype = new sc_Port();
  2112 sc_InputPort.prototype.peekChar = function() {
  2113     if (!("peeked" in this))
  2114 	this.peeked = this.getNextChar();
  2115     return this.peeked;
  2117 sc_InputPort.prototype.readChar = function() {
  2118     var tmp = this.peekChar();
  2119     delete this.peeked;
  2120     return tmp;
  2122 sc_InputPort.prototype.isCharReady = function() {
  2123     return true;
  2125 sc_InputPort.prototype.close = function() {
  2126     // do nothing
  2129 /* .............. String port ..........................*/
  2130 function sc_ErrorInputPort() {
  2131 };
  2132 sc_ErrorInputPort.prototype = new sc_InputPort();
  2133 sc_ErrorInputPort.prototype.getNextChar = function() {
  2134     throw "can't read from error-port.";
  2135 };
  2136 sc_ErrorInputPort.prototype.isCharReady = function() {
  2137     return false;
  2138 };
  2141 /* .............. String port ..........................*/
  2143 function sc_StringInputPort(jsStr) {
  2144     // we are going to do some charAts on the str.
  2145     // instead of recreating all the time a String-object, we
  2146     // create one in the beginning. (not sure, if this is really an optim)
  2147     this.str = new String(jsStr);
  2148     this.pos = 0;
  2150 sc_StringInputPort.prototype = new sc_InputPort();
  2151 sc_StringInputPort.prototype.getNextChar = function() {
  2152     if (this.pos >= this.str.length)
  2153 	return SC_EOF_OBJECT;
  2154     return this.str.charAt(this.pos++);
  2155 };
  2157 /* ------------- Read and other lib-funs  -------------------------------*/
  2158 function sc_Token(type, val, pos) {
  2159     this.type = type;
  2160     this.val = val;
  2161     this.pos = pos;
  2163 sc_Token.EOF = 0/*EOF*/;
  2164 sc_Token.OPEN_PAR = 1/*OPEN_PAR*/;
  2165 sc_Token.CLOSE_PAR = 2/*CLOSE_PAR*/;
  2166 sc_Token.OPEN_BRACE = 3/*OPEN_BRACE*/;
  2167 sc_Token.CLOSE_BRACE = 4/*CLOSE_BRACE*/;
  2168 sc_Token.OPEN_BRACKET = 5/*OPEN_BRACKET*/;
  2169 sc_Token.CLOSE_BRACKET = 6/*CLOSE_BRACKET*/;
  2170 sc_Token.WHITESPACE = 7/*WHITESPACE*/;
  2171 sc_Token.QUOTE = 8/*QUOTE*/;
  2172 sc_Token.ID = 9/*ID*/;
  2173 sc_Token.DOT = 10/*DOT*/;
  2174 sc_Token.STRING = 11/*STRING*/;
  2175 sc_Token.NUMBER = 12/*NUMBER*/;
  2176 sc_Token.ERROR = 13/*ERROR*/;
  2177 sc_Token.VECTOR_BEGIN = 14/*VECTOR_BEGIN*/;
  2178 sc_Token.TRUE = 15/*TRUE*/;
  2179 sc_Token.FALSE = 16/*FALSE*/;
  2180 sc_Token.UNSPECIFIED = 17/*UNSPECIFIED*/;
  2181 sc_Token.REFERENCE = 18/*REFERENCE*/;
  2182 sc_Token.STORE = 19/*STORE*/;
  2183 sc_Token.CHAR = 20/*CHAR*/;
  2185 var SC_ID_CLASS = SC_LOWER_CLASS + SC_UPPER_CLASS + "!$%*+-./:<=>?@^_~";
  2186 function sc_Tokenizer(port) {
  2187     this.port = port;
  2189 sc_Tokenizer.prototype.peekToken = function() {
  2190     if (this.peeked)
  2191 	return this.peeked;
  2192     var newToken = this.nextToken();
  2193     this.peeked = newToken;
  2194     return newToken;
  2195 };
  2196 sc_Tokenizer.prototype.readToken = function() {
  2197     var tmp = this.peekToken();
  2198     delete this.peeked;
  2199     return tmp;
  2200 };
  2201 sc_Tokenizer.prototype.nextToken = function() {
  2202     var port = this.port;
  2204     function isNumberChar(c) {
  2205 	return (c >= "0" && c <= "9");
  2206     };
  2207     function isIdOrNumberChar(c) {
  2208 	return SC_ID_CLASS.indexOf(c) != -1 || // ID-char
  2209 	    (c >= "0" && c <= "9");
  2211     function isWhitespace(c) {
  2212 	return c === " " || c === "\r" || c === "\n" || c === "\t" || c === "\f";
  2213     };
  2214     function isWhitespaceOrEOF(c) {
  2215 	return isWhitespace(c) || c === SC_EOF_OBJECT;
  2216     };
  2218     function readString() {
  2219 	res = "";
  2220 	while (true) {
  2221 	    var c = port.readChar();
  2222 	    switch (c) {
  2223 	    case '"':
  2224 		return new sc_Token(11/*STRING*/, res);
  2225 	    case "\\":
  2226 		var tmp = port.readChar();
  2227 		switch (tmp) {
  2228 		case '0': res += "\0"; break;
  2229 		case 'a': res += "\a"; break;
  2230 		case 'b': res += "\b"; break;
  2231 		case 'f': res += "\f"; break;
  2232 		case 'n': res += "\n"; break;
  2233 		case 'r': res += "\r"; break;
  2234 		case 't': res += "\t"; break;
  2235 		case 'v': res += "\v"; break;
  2236 		case '"': res += '"'; break;
  2237 		case '\\': res += '\\'; break;
  2238 		case 'x':
  2239 		    /* hexa-number */
  2240 		    var nb = 0;
  2241 		    while (true) {
  2242 			var hexC = port.peekChar();
  2243 			if (hexC >= '0' && hexC <= '9') {
  2244 			    port.readChar();
  2245 			    nb = nb * 16 + hexC.charCodeAt(0) - '0'.charCodeAt(0);
  2246 			} else if (hexC >= 'a' && hexC <= 'f') {
  2247 			    port.readChar();
  2248 			    nb = nb * 16 + hexC.charCodeAt(0) - 'a'.charCodeAt(0);
  2249 			} else if (hexC >= 'A' && hexC <= 'F') {
  2250 			    port.readChar();
  2251 			    nb = nb * 16 + hexC.charCodeAt(0) - 'A'.charCodeAt(0);
  2252 			} else {
  2253 			    // next char isn't part of hex.
  2254 			    res += String.fromCharCode(nb);
  2255 			    break;
  2258 		    break;
  2259 		default:
  2260 		    if (tmp === SC_EOF_OBJECT) {
  2261 			return new sc_Token(13/*ERROR*/, "unclosed string-literal" + res);
  2263 		    res += tmp;
  2265 		break;
  2266 	    default:
  2267 		if (c === SC_EOF_OBJECT) {
  2268 		    return new sc_Token(13/*ERROR*/, "unclosed string-literal" + res);
  2270 		res += c;
  2273     };
  2274     function readIdOrNumber(firstChar) {
  2275 	var res = firstChar;
  2276 	while (isIdOrNumberChar(port.peekChar()))
  2277 	    res += port.readChar();
  2278 	if (isNaN(res))
  2279 	    return new sc_Token(9/*ID*/, res);
  2280 	else
  2281 	    return new sc_Token(12/*NUMBER*/, res - 0);
  2282     };
  2284     function skipWhitespaceAndComments() {
  2285 	var done = false;
  2286 	while (!done) {
  2287 	    done = true;
  2288 	    while (isWhitespace(port.peekChar()))
  2289 		port.readChar();
  2290 	    if (port.peekChar() === ';') {
  2291 		port.readChar();
  2292 		done = false;
  2293 		while (true) {
  2294 		    curChar = port.readChar();
  2295 		    if (curChar === SC_EOF_OBJECT ||
  2296 			curChar === '\n')
  2297 			break;
  2301     };
  2303     function readDot() {
  2304 	if (isWhitespace(port.peekChar()))
  2305 	    return new sc_Token(10/*DOT*/);
  2306 	else
  2307 	    return readIdOrNumber(".");
  2308     };
  2310     function readSharp() {
  2311 	var c = port.readChar();
  2312 	if (isWhitespace(c))
  2313 	    return new sc_Token(13/*ERROR*/, "bad #-pattern0.");
  2315 	// reference
  2316 	if (isNumberChar(c)) {
  2317 	    var nb = c - 0;
  2318 	    while (isNumberChar(port.peekChar()))
  2319 		nb = nb*10 + (port.readChar() - 0);
  2320 	    switch (port.readChar()) {
  2321 	    case '#':
  2322 		return new sc_Token(18/*REFERENCE*/, nb);
  2323 	    case '=':
  2324 		return new sc_Token(19/*STORE*/, nb);
  2325 	    default:
  2326 		return new sc_Token(13/*ERROR*/, "bad #-pattern1." + nb);
  2330 	if (c === "(")
  2331 	    return new sc_Token(14/*VECTOR_BEGIN*/);
  2333 	if (c === "\\") { // character
  2334 	    var tmp = ""
  2335 	    while (!isWhitespaceOrEOF(port.peekChar()))
  2336 		tmp += port.readChar();
  2337 	    switch (tmp.length) {
  2338 	    case 0: // it's escaping a whitespace char:
  2339 		if (sc_isEOFObject(port.peekChar))
  2340 		    return new sc_Token(13/*ERROR*/, "bad #-pattern2.");
  2341 		else
  2342 		    return new sc_Token(20/*CHAR*/, port.readChar());
  2343 	    case 1:
  2344 		return new sc_Token(20/*CHAR*/, tmp);
  2345 	    default:
  2346 		var entry = sc_Char.readable2char[tmp.toLowerCase()];
  2347 		if (entry)
  2348 		    return new sc_Token(20/*CHAR*/, entry);
  2349 		else
  2350 		    return new sc_Token(13/*ERROR*/, "unknown character description: #\\" + tmp);
  2354 	// some constants (#t, #f, #unspecified)
  2355 	var res;
  2356 	var needing;
  2357 	switch (c) {
  2358 	case 't': res = new sc_Token(15/*TRUE*/, true); needing = ""; break;
  2359 	case 'f': res = new sc_Token(16/*FALSE*/, false); needing = ""; break;
  2360 	case 'u': res = new sc_Token(17/*UNSPECIFIED*/, undefined); needing = "nspecified"; break;
  2361 	default:
  2362 	    return new sc_Token(13/*ERROR*/, "bad #-pattern3: " + c);
  2364 	while(true) {
  2365 	    c = port.peekChar();
  2366 	    if ((isWhitespaceOrEOF(c) || c === ')') &&
  2367 		needing == "")
  2368 		return res;
  2369 	    else if (isWhitespace(c) || needing == "")
  2370 		return new sc_Token(13/*ERROR*/, "bad #-pattern4 " + c + " " + needing);
  2371 	    else if (needing.charAt(0) == c) {
  2372 		port.readChar(); // consume
  2373 		needing = needing.slice(1);
  2374 	    } else
  2375 		return new sc_Token(13/*ERROR*/, "bad #-pattern5");
  2378     };
  2380     skipWhitespaceAndComments();
  2381     var curChar = port.readChar();
  2382     if (curChar === SC_EOF_OBJECT)
  2383 	return new sc_Token(0/*EOF*/, curChar);
  2384     switch (curChar)
  2386     case " ":
  2387     case "\n":
  2388     case "\t":
  2389 	return readWhitespace();
  2390     case "(":
  2391 	return new sc_Token(1/*OPEN_PAR*/);
  2392     case ")":
  2393 	return new sc_Token(2/*CLOSE_PAR*/);
  2394     case "{":
  2395 	return new sc_Token(3/*OPEN_BRACE*/);
  2396     case "}":
  2397 	return new sc_Token(4/*CLOSE_BRACE*/);
  2398     case "[":
  2399 	return new sc_Token(5/*OPEN_BRACKET*/);
  2400     case "]":
  2401 	return new sc_Token(6/*CLOSE_BRACKET*/);
  2402     case "'":
  2403 	return new sc_Token(8/*QUOTE*/);
  2404     case "#":
  2405 	return readSharp();
  2406     case ".":
  2407 	return readDot();
  2408     case '"':
  2409 	return readString();
  2410     default:
  2411 	if (isIdOrNumberChar(curChar))
  2412 	    return readIdOrNumber(curChar);
  2413 	throw "unexpected character: " + curChar;
  2415 };
  2417 function sc_Reader(tokenizer) {
  2418     this.tokenizer = tokenizer;
  2419     this.backref = new Array();
  2421 sc_Reader.prototype.read = function() {
  2422     function readList(listBeginType) {
  2423 	function matchesPeer(open, close) {
  2424 	    return open === 1/*OPEN_PAR*/ && close === 2/*CLOSE_PAR*/
  2425 	    	|| open === 3/*OPEN_BRACE*/ && close === 4/*CLOSE_BRACE*/
  2426 		|| open === 5/*OPEN_BRACKET*/ && close === 6/*CLOSE_BRACKET*/;
  2427 	};
  2428 	var res = null;
  2430 	while (true) {
  2431 	    var token = tokenizer.peekToken();
  2433 	    switch (token.type) {
  2434 	    case 2/*CLOSE_PAR*/:
  2435 	    case 4/*CLOSE_BRACE*/:
  2436 	    case 6/*CLOSE_BRACKET*/:
  2437 		if (matchesPeer(listBeginType, token.type)) {
  2438 		    tokenizer.readToken(); // consume token
  2439 		    return sc_reverseBang(res);
  2440 		} else
  2441 		    throw "closing par doesn't match: " + listBeginType
  2442 			+ " " + listEndType;
  2444 	    case 0/*EOF*/:
  2445 		throw "unexpected end of file";
  2447 	    case 10/*DOT*/:
  2448 		tokenizer.readToken(); // consume token
  2449 		var cdr = this.read();
  2450 		var par = tokenizer.readToken();
  2451 		if (!matchesPeer(listBeginType, par.type))
  2452 		    throw "closing par doesn't match: " + listBeginType
  2453 			+ " " + par.type;
  2454 		else
  2455 		    return sc_reverseAppendBang(res, cdr);
  2458 	    default:
  2459 		res = sc_cons(this.read(), res);
  2462     };
  2463     function readQuote() {
  2464 	return sc_cons("quote", sc_cons(this.read(), null));
  2465     };
  2466     function readVector() {
  2467 	// opening-parenthesis is already consumed
  2468 	var a = new Array();
  2469 	while (true) {
  2470 	    var token = tokenizer.peekToken();
  2471 	    switch (token.type) {
  2472 	    case 2/*CLOSE_PAR*/:
  2473 		tokenizer.readToken();
  2474 		return a;
  2476 	    default:
  2477 		a.push(this.read());
  2480     };
  2482     function storeRefence(nb) {
  2483 	var tmp = this.read();
  2484 	this.backref[nb] = tmp;
  2485 	return tmp;
  2486     };
  2488     function readReference(nb) {
  2489 	if (nb in this.backref)
  2490 	    return this.backref[nb];
  2491 	else
  2492 	    throw "bad reference: " + nb;
  2493     };
  2495     var tokenizer = this.tokenizer;
  2497     var token = tokenizer.readToken();
  2499     // handle error
  2500     if (token.type === 13/*ERROR*/)
  2501 	throw token.val;
  2503     switch (token.type) {
  2504     case 1/*OPEN_PAR*/:
  2505     case 3/*OPEN_BRACE*/:
  2506     case 5/*OPEN_BRACKET*/:
  2507 	return readList.call(this, token.type);
  2508     case 8/*QUOTE*/:
  2509 	return readQuote.call(this);
  2510     case 11/*STRING*/:
  2511 	return sc_jsstring2string(token.val);
  2512     case 20/*CHAR*/:
  2513 	return new sc_Char(token.val);
  2514     case 14/*VECTOR_BEGIN*/:
  2515 	return readVector.call(this);
  2516     case 18/*REFERENCE*/:
  2517 	return readReference.call(this, token.val);
  2518     case 19/*STORE*/:
  2519 	return storeRefence.call(this, token.val);
  2520     case 9/*ID*/:
  2521 	return sc_jsstring2symbol(token.val);
  2522     case 0/*EOF*/:
  2523     case 12/*NUMBER*/:
  2524     case 15/*TRUE*/:
  2525     case 16/*FALSE*/:
  2526     case 17/*UNSPECIFIED*/:
  2527 	return token.val;
  2528     default:
  2529 	throw "unexpected token " + token.type + " " + token.val;
  2531 };
  2533 /*** META ((export #t)) */
  2534 function sc_read(port) {
  2535     if (port === undefined) // we assume the port hasn't been given.
  2536 	port = SC_DEFAULT_IN; // THREAD: shared var...
  2537     var reader = new sc_Reader(new sc_Tokenizer(port));
  2538     return reader.read();
  2540 /*** META ((export #t)) */
  2541 function sc_readChar(port) {
  2542     if (port === undefined) // we assume the port hasn't been given.
  2543 	port = SC_DEFAULT_IN; // THREAD: shared var...
  2544     var t = port.readChar();
  2545     return t === SC_EOF_OBJECT? t: new sc_Char(t);
  2547 /*** META ((export #t)) */
  2548 function sc_peekChar(port) {
  2549     if (port === undefined) // we assume the port hasn't been given.
  2550 	port = SC_DEFAULT_IN; // THREAD: shared var...
  2551     var t = port.peekChar();
  2552     return t === SC_EOF_OBJECT? t: new sc_Char(t);
  2554 /*** META ((export #t)
  2555            (type bool))
  2556 */
  2557 function sc_isCharReady(port) {
  2558     if (port === undefined) // we assume the port hasn't been given.
  2559 	port = SC_DEFAULT_IN; // THREAD: shared var...
  2560     return port.isCharReady();
  2562 /*** META ((export #t)
  2563            (peephole (postfix ".close()")))
  2564 */
  2565 function sc_closeInputPort(p) {
  2566     return p.close();
  2569 /*** META ((export #t)
  2570            (type bool)
  2571            (peephole (postfix " instanceof sc_InputPort")))
  2572 */
  2573 function sc_isInputPort(o) {
  2574     return (o instanceof sc_InputPort);
  2577 /*** META ((export eof-object?)
  2578            (type bool)
  2579            (peephole (postfix " === SC_EOF_OBJECT")))
  2580 */
  2581 function sc_isEOFObject(o) {
  2582     return o === SC_EOF_OBJECT;
  2585 /*** META ((export #t)
  2586            (peephole (hole 0 "SC_DEFAULT_IN")))
  2587 */
  2588 function sc_currentInputPort() {
  2589     return SC_DEFAULT_IN;
  2592 /* ------------ file operations are not supported -----------*/
  2593 /*** META ((export #t)) */
  2594 function sc_callWithInputFile(s, proc) {
  2595     throw "can't open " + s;
  2598 /*** META ((export #t)) */
  2599 function sc_callWithOutputFile(s, proc) {
  2600     throw "can't open " + s;
  2603 /*** META ((export #t)) */
  2604 function sc_withInputFromFile(s, thunk) {
  2605     throw "can't open " + s;
  2608 /*** META ((export #t)) */
  2609 function sc_withOutputToFile(s, thunk) {
  2610     throw "can't open " + s;
  2613 /*** META ((export #t)) */
  2614 function sc_openInputFile(s) {
  2615     throw "can't open " + s;
  2618 /*** META ((export #t)) */
  2619 function sc_openOutputFile(s) {
  2620     throw "can't open " + s;
  2623 /* ----------------------------------------------------------------------------*/
  2624 /*** META ((export #t)) */
  2625 function sc_basename(p) {
  2626    var i = p.lastIndexOf('/');
  2628    if(i >= 0)
  2629       return p.substring(i + 1, p.length);
  2630    else
  2631       return '';
  2634 /*** META ((export #t)) */
  2635 function sc_dirname(p) {
  2636    var i = p.lastIndexOf('/');
  2638    if(i >= 0)
  2639       return p.substring(0, i);
  2640    else
  2641       return '';
  2644 /* ----------------------------------------------------------------------------*/
  2646 /*** META ((export #t)) */
  2647 function sc_withInputFromPort(p, thunk) {
  2648     try {
  2649 	var tmp = SC_DEFAULT_IN; // THREAD: shared var.
  2650 	SC_DEFAULT_IN = p;
  2651 	return thunk();
  2652     } finally {
  2653 	SC_DEFAULT_IN = tmp;
  2657 /*** META ((export #t)) */
  2658 function sc_withInputFromString(s, thunk) {
  2659     return sc_withInputFromPort(new sc_StringInputPort(sc_string2jsstring(s)), thunk);
  2662 /*** META ((export #t)) */
  2663 function sc_withOutputToPort(p, thunk) {
  2664     try {
  2665 	var tmp = SC_DEFAULT_OUT; // THREAD: shared var.
  2666 	SC_DEFAULT_OUT = p;
  2667 	return thunk();
  2668     } finally {
  2669 	SC_DEFAULT_OUT = tmp;
  2673 /*** META ((export #t)) */
  2674 function sc_withOutputToString(thunk) {
  2675     var p = new sc_StringOutputPort();
  2676     sc_withOutputToPort(p, thunk);
  2677     return p.close();
  2680 /*** META ((export #t)) */
  2681 function sc_withOutputToProcedure(proc, thunk) {
  2682     var t = function(s) { proc(sc_jsstring2string(s)); };
  2683     return sc_withOutputToPort(new sc_GenericOutputPort(t), thunk);
  2686 /*** META ((export #t)
  2687            (peephole (hole 0 "new sc_StringOutputPort()")))
  2688 */
  2689 function sc_openOutputString() {
  2690     return new sc_StringOutputPort();
  2693 /*** META ((export #t)) */
  2694 function sc_openInputString(str) {
  2695     return new sc_StringInputPort(sc_string2jsstring(str));
  2698 /* ----------------------------------------------------------------------------*/
  2700 function sc_OutputPort() {
  2702 sc_OutputPort.prototype = new sc_Port();
  2703 sc_OutputPort.prototype.appendJSString = function(obj) {
  2704     /* do nothing */
  2706 sc_OutputPort.prototype.close = function() {
  2707     /* do nothing */
  2710 function sc_StringOutputPort() {
  2711     this.res = "";
  2713 sc_StringOutputPort.prototype = new sc_OutputPort();
  2714 sc_StringOutputPort.prototype.appendJSString = function(s) {
  2715     this.res += s;
  2717 sc_StringOutputPort.prototype.close = function() {
  2718     return sc_jsstring2string(this.res);
  2721 /*** META ((export #t)) */
  2722 function sc_getOutputString(sp) {
  2723     return sc_jsstring2string(sp.res);
  2727 function sc_ErrorOutputPort() {
  2729 sc_ErrorOutputPort.prototype = new sc_OutputPort();
  2730 sc_ErrorOutputPort.prototype.appendJSString = function(s) {
  2731     throw "don't write on ErrorPort!";
  2733 sc_ErrorOutputPort.prototype.close = function() {
  2734     /* do nothing */
  2737 function sc_GenericOutputPort(appendJSString, close) {
  2738     this.appendJSString = appendJSString;
  2739     if (close)
  2740 	this.close = close;
  2742 sc_GenericOutputPort.prototype = new sc_OutputPort();
  2744 /*** META ((export #t)
  2745            (type bool)
  2746            (peephole (postfix " instanceof sc_OutputPort")))
  2747 */
  2748 function sc_isOutputPort(o) {
  2749     return (o instanceof sc_OutputPort);
  2752 /*** META ((export #t)
  2753            (peephole (postfix ".close()")))
  2754 */
  2755 function sc_closeOutputPort(p) {
  2756     return p.close();
  2759 /* ------------------ write ---------------------------------------------------*/
  2761 /*** META ((export #t)) */
  2762 function sc_write(o, p) {
  2763     if (p === undefined) // we assume not given
  2764 	p = SC_DEFAULT_OUT;
  2765     p.appendJSString(sc_toWriteString(o));
  2768 function sc_toWriteString(o) {
  2769     if (o === null)
  2770 	return "()";
  2771     else if (o === true)
  2772 	return "#t";
  2773     else if (o === false)
  2774 	return "#f";
  2775     else if (o === undefined)
  2776 	return "#unspecified";
  2777     else if (typeof o === 'function')
  2778 	return "#<procedure " + sc_hash(o) + ">";
  2779     else if (o.sc_toWriteString)
  2780 	return o.sc_toWriteString();
  2781     else
  2782 	return o.toString();
  2785 function sc_escapeWriteString(s) {
  2786     var res = "";
  2787     var j = 0;
  2788     for (i = 0; i < s.length; i++) {
  2789 	switch (s.charAt(i)) {
  2790 	case "\0": res += s.substring(j, i) + "\\0"; j = i + 1; break;
  2791 	case "\b": res += s.substring(j, i) + "\\b"; j = i + 1; break;
  2792 	case "\f": res += s.substring(j, i) + "\\f"; j = i + 1; break;
  2793 	case "\n": res += s.substring(j, i) + "\\n"; j = i + 1; break;
  2794 	case "\r": res += s.substring(j, i) + "\\r"; j = i + 1; break;
  2795 	case "\t": res += s.substring(j, i) + "\\t"; j = i + 1; break;
  2796 	case "\v": res += s.substring(j, i) + "\\v"; j = i + 1; break;
  2797 	case '"': res += s.substring(j, i) + '\\"'; j = i + 1; break;
  2798 	case "\\": res += s.substring(j, i) + "\\\\"; j = i + 1; break;
  2799 	default:
  2800 	    var c = s.charAt(i);
  2801 	    if ("\a" !== "a" && c == "\a") {
  2802 		res += s.substring(j, i) + "\\a"; j = i + 1; continue;
  2804 	    if ("\v" !== "v" && c == "\v") {
  2805 		res += s.substring(j, i) + "\\v"; j = i + 1; continue;
  2807 	    //if (s.charAt(i) < ' ' || s.charCodeAt(i) > 127) {
  2808 	    // CARE: Manuel is this OK with HOP?
  2809 	    if (s.charAt(i) < ' ') {
  2810 		/* non printable character and special chars */
  2811 		res += s.substring(j, i) + "\\x" + s.charCodeAt(i).toString(16);
  2812 		j = i + 1;
  2814 	    // else just let i increase...
  2817     res += s.substring(j, i);
  2818     return res;
  2821 /* ------------------ display ---------------------------------------------------*/
  2823 /*** META ((export #t)) */
  2824 function sc_display(o, p) {
  2825     if (p === undefined) // we assume not given
  2826 	p = SC_DEFAULT_OUT;
  2827     p.appendJSString(sc_toDisplayString(o));
  2830 function sc_toDisplayString(o) {
  2831     if (o === null)
  2832 	return "()";
  2833     else if (o === true)
  2834 	return "#t";
  2835     else if (o === false)
  2836 	return "#f";
  2837     else if (o === undefined)
  2838 	return "#unspecified";
  2839     else if (typeof o === 'function')
  2840 	return "#<procedure " + sc_hash(o) + ">";
  2841     else if (o.sc_toDisplayString)
  2842 	return o.sc_toDisplayString();
  2843     else
  2844 	return o.toString();
  2847 /* ------------------ newline ---------------------------------------------------*/
  2849 /*** META ((export #t)) */
  2850 function sc_newline(p) {
  2851     if (p === undefined) // we assume not given
  2852 	p = SC_DEFAULT_OUT;
  2853     p.appendJSString("\n");
  2856 /* ------------------ write-char ---------------------------------------------------*/
  2858 /*** META ((export #t)) */
  2859 function sc_writeChar(c, p) {
  2860     if (p === undefined) // we assume not given
  2861 	p = SC_DEFAULT_OUT;
  2862     p.appendJSString(c.val);
  2865 /* ------------------ write-circle ---------------------------------------------------*/
  2867 /*** META ((export #t)) */
  2868 function sc_writeCircle(o, p) {
  2869     if (p === undefined) // we assume not given
  2870 	p = SC_DEFAULT_OUT;
  2871     p.appendJSString(sc_toWriteCircleString(o));
  2874 function sc_toWriteCircleString(o) {
  2875     var symb = sc_gensym("writeCircle");
  2876     var nbPointer = new Object();
  2877     nbPointer.nb = 0;
  2878     sc_prepWriteCircle(o, symb, nbPointer);
  2879     return sc_genToWriteCircleString(o, symb);
  2882 function sc_prepWriteCircle(o, symb, nbPointer) {
  2883     // TODO sc_Struct
  2884     if (o instanceof sc_Pair ||
  2885 	o instanceof sc_Vector) {
  2886 	if (o[symb] !== undefined) {
  2887 	    // not the first visit.
  2888 	    o[symb]++;
  2889 	    // unless there is already a number, assign one.
  2890 	    if (!o[symb + "nb"]) o[symb + "nb"] = nbPointer.nb++;
  2891 	    return;
  2893 	o[symb] = 0;
  2894 	if (o instanceof sc_Pair) {
  2895 	    sc_prepWriteCircle(o.car, symb, nbPointer);
  2896 	    sc_prepWriteCircle(o.cdr, symb, nbPointer);
  2897 	} else {
  2898 	    for (var i = 0; i < o.length; i++)
  2899 		sc_prepWriteCircle(o[i], symb, nbPointer);
  2904 function sc_genToWriteCircleString(o, symb) {
  2905     if (!(o instanceof sc_Pair ||
  2906 	  o instanceof sc_Vector))
  2907 	return sc_toWriteString(o);
  2908     return o.sc_toWriteCircleString(symb);
  2910 sc_Pair.prototype.sc_toWriteCircleString = function(symb, inList) {
  2911     if (this[symb + "use"]) { // use-flag is set. Just use it.
  2912 	var nb = this[symb + "nb"];
  2913 	if (this[symb]-- === 0) { // if we are the last use. remove all fields.
  2914 	    delete this[symb];
  2915 	    delete this[symb + "nb"];
  2916 	    delete this[symb + "use"];
  2918 	if (inList)
  2919 	    return '. #' + nb + '#';
  2920 	else
  2921 	    return '#' + nb + '#';
  2923     if (this[symb]-- === 0) { // if we are the last use. remove all fields.
  2924 	delete this[symb];
  2925 	delete this[symb + "nb"];
  2926 	delete this[symb + "use"];
  2929     var res = "";
  2931     if (this[symb] !== undefined) { // implies > 0
  2932 	this[symb + "use"] = true;
  2933 	if (inList)
  2934 	    res += '. #' + this[symb + "nb"] + '=';
  2935 	else
  2936 	    res += '#' + this[symb + "nb"] + '=';
  2937 	inList = false;
  2940     if (!inList)
  2941 	res += "(";
  2943     // print car
  2944     res += sc_genToWriteCircleString(this.car, symb);
  2946     if (sc_isPair(this.cdr)) {
  2947 	res += " " + this.cdr.sc_toWriteCircleString(symb, true);
  2948     } else if (this.cdr !== null) {
  2949 	res += " . " + sc_genToWriteCircleString(this.cdr, symb);
  2951     if (!inList)
  2952 	res += ")";
  2953     return res;
  2954 };
  2955 sc_Vector.prototype.sc_toWriteCircleString = function(symb) {
  2956     if (this[symb + "use"]) { // use-flag is set. Just use it.
  2957 	var nb = this[symb + "nb"];
  2958 	if (this[symb]-- === 0) { // if we are the last use. remove all fields.
  2959 	    delete this[symb];
  2960 	    delete this[symb + "nb"];
  2961 	    delete this[symb + "use"];
  2963 	return '#' + nb + '#';
  2965     if (this[symb]-- === 0) { // if we are the last use. remove all fields.
  2966 	delete this[symb];
  2967 	delete this[symb + "nb"];
  2968 	delete this[symb + "use"];
  2971     var res = "";
  2972     if (this[symb] !== undefined) { // implies > 0
  2973 	this[symb + "use"] = true;
  2974 	res += '#' + this[symb + "nb"] + '=';
  2976     res += "#(";
  2977     for (var i = 0; i < this.length; i++) {
  2978 	res += sc_genToWriteCircleString(this[i], symb);
  2979 	if (i < this.length - 1) res += " ";
  2981     res += ")";
  2982     return res;
  2983 };
  2986 /* ------------------ print ---------------------------------------------------*/
  2988 /*** META ((export #t)) */
  2989 function sc_print(s) {
  2990     if (arguments.length === 1) {
  2991 	sc_display(s);
  2992 	sc_newline();
  2994     else {
  2995 	for (var i = 0; i < arguments.length; i++)
  2996 	    sc_display(arguments[i]);
  2997 	sc_newline();
  3001 /* ------------------ format ---------------------------------------------------*/
  3002 /*** META ((export #t)) */
  3003 function sc_format(s, args) {
  3004    var len = s.length;
  3005    var p = new sc_StringOutputPort();
  3006    var i = 0, j = 1;
  3008    while( i < len ) {
  3009       var i2 = s.indexOf("~", i);
  3011       if (i2 == -1) {
  3012 	  p.appendJSString( s.substring( i, len ) );
  3013 	  return p.close();
  3014       } else {
  3015 	 if (i2 > i) {
  3016 	    if (i2 == (len - 1)) {
  3017 		p.appendJSString(s.substring(i, len));
  3018 		return p.close();
  3019 	    } else {
  3020 	       p.appendJSString(s.substring(i, i2));
  3021 	       i = i2;
  3025 	 switch(s.charCodeAt(i2 + 1)) {
  3026 	    case 65:
  3027 	    case 97:
  3028 	       // a
  3029 	       sc_display(arguments[j], p);
  3030 	       i += 2; j++;
  3031 	       break;
  3033 	    case 83:
  3034 	    case 115:
  3035 	       // s
  3036 	       sc_write(arguments[j], p);
  3037 	       i += 2; j++;
  3038 	       break;
  3040 	    case 86:
  3041 	    case 118:
  3042 	       // v
  3043 	       sc_display(arguments[j], p);
  3044 	       p.appendJSString("\n");
  3045 	       i += 2; j++;
  3046 	       break;
  3048 	    case 67:
  3049 	    case 99:
  3050 	       // c
  3051 	       p.appendJSString(String.fromCharCode(arguments[j]));
  3052 	       i += 2; j++;
  3053 	       break;
  3055 	    case 88:
  3056 	    case 120:
  3057 	       // x
  3058 	       p.appendJSString(arguments[j].toString(6));
  3059 	       i += 2; j++;
  3060 	       break;
  3062 	    case 79:
  3063 	    case 111:
  3064 	       // o
  3065 	       p.appendJSString(arguments[j].toString(8));
  3066 	       i += 2; j++;
  3067 	       break;
  3069 	    case 66:
  3070 	    case 98:
  3071 	       // b
  3072 	       p.appendJSString(arguments[j].toString(2));
  3073 	       i += 2; j++;
  3074 	       break;
  3076 	    case 37:
  3077 	    case 110:
  3078 	       // %, n
  3079 	       p.appendJSString("\n");
  3080 	       i += 2; break;
  3082 	    case 114:
  3083 	       // r
  3084 	       p.appendJSString("\r");
  3085 	       i += 2; break;
  3087 	    case 126:
  3088 	       // ~
  3089 	       p.appendJSString("~");
  3090 	       i += 2; break;
  3092 	    default:
  3093 	       sc_error( "format: illegal ~"
  3094 			 + String.fromCharCode(s.charCodeAt(i2 + 1))
  3095 			 + " sequence" );
  3096 	       return "";
  3101    return p.close();
  3104 /* ------------------ global ports ---------------------------------------------------*/
  3106 var SC_DEFAULT_IN = new sc_ErrorInputPort();
  3107 var SC_DEFAULT_OUT = new sc_ErrorOutputPort();
  3108 var SC_ERROR_OUT = new sc_ErrorOutputPort();
  3110 var sc_SYMBOL_PREFIX = "\u1E9C";
  3111 var sc_KEYWORD_PREFIX = "\u1E9D";
  3113 /*** META ((export #t)
  3114            (peephole (id))) */
  3115 function sc_jsstring2string(s) {
  3116     return s;
  3119 /*** META ((export #t)
  3120            (peephole (prefix "'\\u1E9C' +")))
  3121 */
  3122 function sc_jsstring2symbol(s) {
  3123     return sc_SYMBOL_PREFIX + s;
  3126 /*** META ((export #t)
  3127            (peephole (id)))
  3128 */
  3129 function sc_string2jsstring(s) {
  3130     return s;
  3133 /*** META ((export #t)
  3134            (peephole (symbol2jsstring_immutable)))
  3135 */
  3136 function sc_symbol2jsstring(s) {
  3137     return s.slice(1);
  3140 /*** META ((export #t)
  3141            (peephole (postfix ".slice(1)")))
  3142 */
  3143 function sc_keyword2jsstring(k) {
  3144     return k.slice(1);
  3147 /*** META ((export #t)
  3148            (peephole (prefix "'\\u1E9D' +")))
  3149 */
  3150 function sc_jsstring2keyword(s) {
  3151     return sc_KEYWORD_PREFIX + s;
  3154 /*** META ((export #t)
  3155            (type bool))
  3156 */
  3157 function sc_isKeyword(s) {
  3158     return (typeof s === "string") &&
  3159 	(s.charAt(0) === sc_KEYWORD_PREFIX);
  3163 /*** META ((export #t)) */
  3164 var sc_gensym = function() {
  3165     var counter = 1000;
  3166     return function(sym) {
  3167 	counter++;
  3168 	if (!sym) sym = sc_SYMBOL_PREFIX;
  3169 	return sym + "s" + counter + "~" + "^sC-GeNsYm ";
  3170     };
  3171 }();
  3174 /*** META ((export #t)
  3175            (type bool))
  3176 */
  3177 function sc_isEqual(o1, o2) {
  3178     return ((o1 === o2) ||
  3179 	    (sc_isPair(o1) && sc_isPair(o2)
  3180 	     && sc_isPairEqual(o1, o2, sc_isEqual)) ||
  3181 	    (sc_isVector(o1) && sc_isVector(o2)
  3182 	     && sc_isVectorEqual(o1, o2, sc_isEqual)));
  3185 /*** META ((export number->symbol integer->symbol)) */
  3186 function sc_number2symbol(x, radix) {
  3187     return sc_SYMBOL_PREFIX + sc_number2jsstring(x, radix);
  3190 /*** META ((export number->string integer->string)) */
  3191 var sc_number2string = sc_number2jsstring;
  3193 /*** META ((export #t)) */
  3194 function sc_symbol2number(s, radix) {
  3195     return sc_jsstring2number(s.slice(1), radix);
  3198 /*** META ((export #t)) */
  3199 var sc_string2number = sc_jsstring2number;
  3201 /*** META ((export #t)
  3202            (peephole (prefix "+" s)))
  3203            ;; peephole will only apply if no radix is given.
  3204 */
  3205 function sc_string2integer(s, radix) {
  3206     if (!radix) return +s;
  3207     return parseInt(s, radix);
  3210 /*** META ((export #t)
  3211            (peephole (prefix "+")))
  3212 */
  3213 function sc_string2real(s) {
  3214     return +s;
  3218 /*** META ((export #t)
  3219            (type bool))
  3220 */
  3221 function sc_isSymbol(s) {
  3222     return (typeof s === "string") &&
  3223 	(s.charAt(0) === sc_SYMBOL_PREFIX);
  3226 /*** META ((export #t)
  3227            (peephole (symbol2string_immutable)))
  3228 */
  3229 function sc_symbol2string(s) {
  3230     return s.slice(1);
  3233 /*** META ((export #t)
  3234            (peephole (prefix "'\\u1E9C' +")))
  3235 */
  3236 function sc_string2symbol(s) {
  3237     return sc_SYMBOL_PREFIX + s;
  3240 /*** META ((export symbol-append)
  3241            (peephole (symbolAppend_immutable)))
  3242 */
  3243 function sc_symbolAppend() {
  3244     var res = sc_SYMBOL_PREFIX;
  3245     for (var i = 0; i < arguments.length; i++)
  3246 	res += arguments[i].slice(1);
  3247     return res;
  3250 /*** META ((export #t)
  3251            (peephole (postfix ".val")))
  3252 */
  3253 function sc_char2string(c) { return c.val; }
  3255 /*** META ((export #t)
  3256            (peephole (hole 1 "'\\u1E9C' + " c ".val")))
  3257 */
  3258 function sc_char2symbol(c) { return sc_SYMBOL_PREFIX + c.val; }
  3260 /*** META ((export #t)
  3261            (type bool))
  3262 */
  3263 function sc_isString(s) {
  3264     return (typeof s === "string") &&
  3265 	(s.charAt(0) !== sc_SYMBOL_PREFIX);
  3268 /*** META ((export #t)) */
  3269 var sc_makeString = sc_makejsString;
  3272 /*** META ((export #t)) */
  3273 function sc_string() {
  3274     for (var i = 0; i < arguments.length; i++)
  3275 	arguments[i] = arguments[i].val;
  3276     return "".concat.apply("", arguments);
  3279 /*** META ((export #t)
  3280            (peephole (postfix ".length")))
  3281 */
  3282 function sc_stringLength(s) { return s.length; }
  3284 /*** META ((export #t)) */
  3285 function sc_stringRef(s, k) {
  3286     return new sc_Char(s.charAt(k));
  3289 /* there's no stringSet in the immutable version
  3290 function sc_stringSet(s, k, c)
  3291 */
  3294 /*** META ((export string=?)
  3295 	   (type bool)
  3296            (peephole (hole 2 str1 " === " str2)))
  3297 */
  3298 function sc_isStringEqual(s1, s2) {
  3299     return s1 === s2;
  3301 /*** META ((export string<?)
  3302 	   (type bool)
  3303            (peephole (hole 2 str1 " < " str2)))
  3304 */
  3305 function sc_isStringLess(s1, s2) {
  3306     return s1 < s2;
  3308 /*** META ((export string>?)
  3309 	   (type bool)
  3310            (peephole (hole 2 str1 " > " str2)))
  3311 */
  3312 function sc_isStringGreater(s1, s2) {
  3313     return s1 > s2;
  3315 /*** META ((export string<=?)
  3316 	   (type bool)
  3317            (peephole (hole 2 str1 " <= " str2)))
  3318 */
  3319 function sc_isStringLessEqual(s1, s2) {
  3320     return s1 <= s2;
  3322 /*** META ((export string>=?)
  3323 	   (type bool)
  3324            (peephole (hole 2 str1 " >= " str2)))
  3325 */
  3326 function sc_isStringGreaterEqual(s1, s2) {
  3327     return s1 >= s2;
  3329 /*** META ((export string-ci=?)
  3330 	   (type bool)
  3331            (peephole (hole 2 str1 ".toLowerCase() === " str2 ".toLowerCase()")))
  3332 */
  3333 function sc_isStringCIEqual(s1, s2) {
  3334     return s1.toLowerCase() === s2.toLowerCase();
  3336 /*** META ((export string-ci<?)
  3337 	   (type bool)
  3338            (peephole (hole 2 str1 ".toLowerCase() < " str2 ".toLowerCase()")))
  3339 */
  3340 function sc_isStringCILess(s1, s2) {
  3341     return s1.toLowerCase() < s2.toLowerCase();
  3343 /*** META ((export string-ci>?)
  3344 	   (type bool)
  3345            (peephole (hole 2 str1 ".toLowerCase() > " str2 ".toLowerCase()")))
  3346 */
  3347 function sc_isStringCIGreater(s1, s2) {
  3348     return s1.toLowerCase() > s2.toLowerCase();
  3350 /*** META ((export string-ci<=?)
  3351 	   (type bool)
  3352            (peephole (hole 2 str1 ".toLowerCase() <= " str2 ".toLowerCase()")))
  3353 */
  3354 function sc_isStringCILessEqual(s1, s2) {
  3355     return s1.toLowerCase() <= s2.toLowerCase();
  3357 /*** META ((export string-ci>=?)
  3358 	   (type bool)
  3359            (peephole (hole 2 str1 ".toLowerCase() >= " str2 ".toLowerCase()")))
  3360 */
  3361 function sc_isStringCIGreaterEqual(s1, s2) {
  3362     return s1.toLowerCase() >= s2.toLowerCase();
  3365 /*** META ((export #t)
  3366            (peephole (hole 3 s ".substring(" start ", " end ")")))
  3367 */
  3368 function sc_substring(s, start, end) {
  3369     return s.substring(start, end);
  3372 /*** META ((export #t))
  3373 */
  3374 function sc_isSubstring_at(s1, s2, i) {
  3375     return s2 == s1.substring(i, i+ s2.length);
  3378 /*** META ((export #t)
  3379            (peephole (infix 0 #f "+" "''")))
  3380 */
  3381 function sc_stringAppend() {
  3382     return "".concat.apply("", arguments);
  3385 /*** META ((export #t)) */
  3386 var sc_string2list = sc_jsstring2list;
  3388 /*** META ((export #t)) */
  3389 var sc_list2string = sc_list2jsstring;
  3391 /*** META ((export #t)
  3392            (peephole (id)))
  3393 */
  3394 function sc_stringCopy(s) {
  3395     return s;
  3398 /* there's no string-fill in the immutable version
  3399 function sc_stringFill(s, c)
  3400 */
  3402 /*** META ((export #t)
  3403            (peephole (postfix ".slice(1)")))
  3404 */
  3405 function sc_keyword2string(o) {
  3406     return o.slice(1);
  3409 /*** META ((export #t)
  3410            (peephole (prefix "'\\u1E9D' +")))
  3411 */
  3412 function sc_string2keyword(o) {
  3413     return sc_KEYWORD_PREFIX + o;
  3416 String.prototype.sc_toDisplayString = function() {
  3417     if (this.charAt(0) === sc_SYMBOL_PREFIX)
  3418 	// TODO: care for symbols with spaces (escape-chars symbols).
  3419 	return this.slice(1);
  3420     else if (this.charAt(0) === sc_KEYWORD_PREFIX)
  3421 	return ":" + this.slice(1);
  3422     else
  3423 	return this.toString();
  3424 };
  3426 String.prototype.sc_toWriteString = function() {
  3427     if (this.charAt(0) === sc_SYMBOL_PREFIX)
  3428 	// TODO: care for symbols with spaces (escape-chars symbols).
  3429 	return this.slice(1);
  3430     else if (this.charAt(0) === sc_KEYWORD_PREFIX)
  3431 	return ":" + this.slice(1);
  3432     else
  3433 	return '"' + sc_escapeWriteString(this) + '"';
  3434 };
  3435 /* Exported Variables */
  3436 var BgL_testzd2boyerzd2;
  3437 var BgL_nboyerzd2benchmarkzd2;
  3438 var BgL_setupzd2boyerzd2;
  3439 /* End Exports */
  3441 var translate_term_nboyer;
  3442 var translate_args_nboyer;
  3443 var untranslate_term_nboyer;
  3444 var BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer;
  3445 var BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer;
  3446 var translate_alist_nboyer;
  3447 var apply_subst_nboyer;
  3448 var apply_subst_lst_nboyer;
  3449 var tautologyp_nboyer;
  3450 var if_constructor_nboyer;
  3451 var rewrite_count_nboyer;
  3452 var rewrite_nboyer;
  3453 var rewrite_args_nboyer;
  3454 var unify_subst_nboyer;
  3455 var one_way_unify1_nboyer;
  3456 var false_term_nboyer;
  3457 var true_term_nboyer;
  3458 var trans_of_implies1_nboyer;
  3459 var is_term_equal_nboyer;
  3460 var is_term_member_nboyer;
  3461 var const_nboyer;
  3462 var sc_const_3_nboyer;
  3463 var sc_const_4_nboyer;
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  3467     (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)))))))))));
  3468     BgL_nboyerzd2benchmarkzd2 = function() {
  3469         var args = null;
  3470         for (var sc_tmp = arguments.length - 1; sc_tmp >= 0; sc_tmp--) {
  3471             args = sc_cons(arguments[sc_tmp], args);
  3473         var n;
  3474         return ((n = ((args === null)?(0):(args.car))), (BgL_setupzd2boyerzd2()), (BgL_runzd2benchmarkzd2(("nboyer"+(sc_number2string(n))), (1), function() {
  3475             return (BgL_testzd2boyerzd2(n));
  3476         }, function(rewrites) {
  3477             if ((sc_isNumber(rewrites)))
  3478                 switch (n) {
  3479                 case (0):
  3480                     return (rewrites===(95024));
  3481                     break;
  3482                 case (1):
  3483                     return (rewrites===(591777));
  3484                     break;
  3485                 case (2):
  3486                     return (rewrites===(1813975));
  3487                     break;
  3488                 case (3):
  3489                     return (rewrites===(5375678));
  3490                     break;
  3491                 case (4):
  3492                     return (rewrites===(16445406));
  3493                     break;
  3494                 case (5):
  3495                     return (rewrites===(51507739));
  3496                     break;
  3497                 default:
  3498                     return true;
  3499                     break;
  3501             else
  3502                 return false;
  3503         })));
  3504     };
  3505     BgL_setupzd2boyerzd2 = function() {
  3506         return true;
  3507     };
  3508     BgL_testzd2boyerzd2 = function() {
  3509         return true;
  3510     };
  3511     translate_term_nboyer = function(term) {
  3512         var lst;
  3513         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))))))))));
  3514     };
  3515     translate_args_nboyer = function(lst) {
  3516         var sc_lst_5;
  3517         var term;
  3518         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))))))))));
  3519     };
  3520     untranslate_term_nboyer = function(term) {
  3521         var optrOpnd;
  3522         var tail1131;
  3523         var L1127;
  3524         var falseHead1130;
  3525         var symbol_record;
  3526         if (!(term instanceof sc_Pair))
  3527             return term;
  3528         else
  3530                 (falseHead1130 = (new sc_Pair(null, null)));
  3531                 (L1127 = (term.cdr));
  3532                 (tail1131 = falseHead1130);
  3533                 while (!(L1127 === null)) {
  3535                         (tail1131.cdr = (new sc_Pair((untranslate_term_nboyer((L1127.car))), null)));
  3536                         (tail1131 = (tail1131.cdr));
  3537                         (L1127 = (L1127.cdr));
  3540                 (optrOpnd = (falseHead1130.cdr));
  3541                 return (new sc_Pair(((symbol_record = (term.car)), (symbol_record[(0)])), optrOpnd));
  3543     };
  3544     BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer = function(sym) {
  3545         var r;
  3546         var x;
  3547         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)));
  3548     };
  3549     (BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer = null);
  3550     translate_alist_nboyer = function(alist) {
  3551         var sc_alist_6;
  3552         var term;
  3553         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))))))))));
  3554     };
  3555     apply_subst_nboyer = function(alist, term) {
  3556         var lst;
  3557         var temp_temp;
  3558         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))))))))));
  3559     };
  3560     apply_subst_lst_nboyer = function(alist, lst) {
  3561         var sc_lst_7;
  3562         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))))))))));
  3563     };
  3564     tautologyp_nboyer = function(sc_x_11, true_lst, false_lst) {
  3565         var tmp1125;
  3566         var x;
  3567         var tmp1126;
  3568         var sc_x_8;
  3569         var sc_tmp1125_9;
  3570         var sc_tmp1126_10;
  3571         var sc_x_11;
  3572         var true_lst;
  3573         var false_lst;
  3574         while (true) {
  3575             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))
  3576                 return true;
  3577             else
  3578                 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))
  3579                     return false;
  3580                 else
  3581                     if (!(sc_x_11 instanceof sc_Pair))
  3582                         return false;
  3583                     else
  3584                         if (((sc_x_11.car)===if_constructor_nboyer))
  3585                             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))
  3586                                 (sc_x_11 = (sc_x_11.cdr.cdr.car));
  3587                             else
  3588                                 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))
  3589                                     (sc_x_11 = (sc_x_11.cdr.cdr.cdr.car));
  3590                                 else
  3591                                     if (((tautologyp_nboyer((sc_x_11.cdr.cdr.car), (new sc_Pair((sc_x_11.cdr.car), true_lst)), false_lst))!== false))
  3593                                             (false_lst = (new sc_Pair((sc_x_11.cdr.car), false_lst)));
  3594                                             (sc_x_11 = (sc_x_11.cdr.cdr.cdr.car));
  3596                                     else
  3597                                         return false;
  3598                         else
  3599                             return false;
  3601     };
  3602     (if_constructor_nboyer = "\u1E9C*");
  3603     (rewrite_count_nboyer = (0));
  3604     rewrite_nboyer = function(term) {
  3605         var term2;
  3606         var sc_term_12;
  3607         var lst;
  3608         var symbol_record;
  3609         var sc_lst_13;
  3611             (++rewrite_count_nboyer);
  3612             if (!(term instanceof sc_Pair))
  3613                 return term;
  3614             else
  3616                     (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))))))))));
  3617                     (lst = ((symbol_record = (term.car)), (symbol_record[(1)])));
  3618                     while (true) {
  3619                         if ((lst === null))
  3620                             return sc_term_12;
  3621                         else
  3622                             if ((((term2 = ((lst.car).cdr.car)), (unify_subst_nboyer = null), (one_way_unify1_nboyer(sc_term_12, term2)))!== false))
  3623                                 return (rewrite_nboyer((apply_subst_nboyer(unify_subst_nboyer, ((lst.car).cdr.cdr.car)))));
  3624                             else
  3625                                 (lst = (lst.cdr));
  3629     };
  3630     rewrite_args_nboyer = function(lst) {
  3631         var sc_lst_14;
  3632         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))))))))));
  3633     };
  3634     (unify_subst_nboyer = "\u1E9C*");
  3635     one_way_unify1_nboyer = function(term1, term2) {
  3636         var lst1;
  3637         var lst2;
  3638         var temp_temp;
  3639         if (!(term2 instanceof sc_Pair))
  3641                 (temp_temp = (sc_assq(term2, unify_subst_nboyer)));
  3642                 if ((temp_temp!== false))
  3643                     return (is_term_equal_nboyer(term1, (temp_temp.cdr)));
  3644                 else
  3645                     if ((sc_isNumber(term2)))
  3646                         return (sc_isEqual(term1, term2));
  3647                     else
  3649                             (unify_subst_nboyer = (new sc_Pair((new sc_Pair(term2, term1)), unify_subst_nboyer)));
  3650                             return true;
  3653         else
  3654             if (!(term1 instanceof sc_Pair))
  3655                 return false;
  3656             else
  3657                 if (((term1.car)===(term2.car)))
  3659                         (lst1 = (term1.cdr));
  3660                         (lst2 = (term2.cdr));
  3661                         while (true) {
  3662                             if ((lst1 === null))
  3663                                 return (lst2 === null);
  3664                             else
  3665                                 if ((lst2 === null))
  3666                                     return false;
  3667                                 else
  3668                                     if (((one_way_unify1_nboyer((lst1.car), (lst2.car)))!== false))
  3670                                             (lst1 = (lst1.cdr));
  3671                                             (lst2 = (lst2.cdr));
  3673                                     else
  3674                                         return false;
  3677                 else
  3678                     return false;
  3679     };
  3680     (false_term_nboyer = "\u1E9C*");
  3681     (true_term_nboyer = "\u1E9C*");
  3682     trans_of_implies1_nboyer = function(n) {
  3683         var sc_n_15;
  3684         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)))))))))));
  3685     };
  3686     is_term_equal_nboyer = function(x, y) {
  3687         var lst1;
  3688         var lst2;
  3689         var r2;
  3690         var r1;
  3691         if ((x instanceof sc_Pair))
  3692             if ((y instanceof sc_Pair))
  3693                 if ((((r1 = (x.car)), (r2 = (y.car)), (r1===r2))!== false))
  3695                         (lst1 = (x.cdr));
  3696                         (lst2 = (y.cdr));
  3697                         while (true) {
  3698                             if ((lst1 === null))
  3699                                 return (lst2 === null);
  3700                             else
  3701                                 if ((lst2 === null))
  3702                                     return false;
  3703                                 else
  3704                                     if (((is_term_equal_nboyer((lst1.car), (lst2.car)))!== false))
  3706                                             (lst1 = (lst1.cdr));
  3707                                             (lst2 = (lst2.cdr));
  3709                                     else
  3710                                         return false;
  3713                 else
  3714                     return false;
  3715             else
  3716                 return false;
  3717         else
  3718             return (sc_isEqual(x, y));
  3719     };
  3720     is_term_member_nboyer = function(x, lst) {
  3721         var x;
  3722         var lst;
  3723         while (true) {
  3724             if ((lst === null))
  3725                 return false;
  3726             else
  3727                 if (((is_term_equal_nboyer(x, (lst.car)))!== false))
  3728                     return true;
  3729                 else
  3730                     (lst = (lst.cdr));
  3732     };
  3733     BgL_setupzd2boyerzd2 = function() {
  3734         var symbol_record;
  3735         var value;
  3736         var BgL_sc_symbolzd2record_16zd2;
  3737         var sym;
  3738         var sc_sym_17;
  3739         var term;
  3740         var lst;
  3741         var sc_term_18;
  3742         var sc_term_19;
  3744             (BgL_sc_za2symbolzd2recordszd2alistza2_2z00_nboyer = null);
  3745             (if_constructor_nboyer = (BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer("\u1E9Cif")));
  3746             (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))))))));
  3747             (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))))))));
  3748             (lst = sc_const_3_nboyer);
  3749             while (!(lst === null)) {
  3751                     (term = (lst.car));
  3752                     if (((term instanceof sc_Pair)&&(((term.car)==="\u1E9Cequal")&&((term.cdr.car) instanceof sc_Pair))))
  3754                             (sc_sym_17 = ((term.cdr.car).car));
  3755                             (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)])))));
  3756                             (symbol_record = (BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer(sc_sym_17)));
  3757                             (symbol_record[(1)] = value);
  3759                     else
  3760                         (sc_error("ADD-LEMMA did not like term:  ", term));
  3761                     (lst = (lst.cdr));
  3764             return true;
  3766     };
  3767     BgL_testzd2boyerzd2 = function(n) {
  3768         var optrOpnd;
  3769         var term;
  3770         var sc_n_20;
  3771         var answer;
  3772         var sc_term_21;
  3773         var sc_term_22;
  3775             (rewrite_count_nboyer = (0));
  3776             (term = sc_const_4_nboyer);
  3777             (sc_n_20 = n);
  3778             while (!(sc_n_20=== 0)) {
  3780                     (term = (sc_list("\u1E9Cor", term, (new sc_Pair("\u1E9Cf",null)))));
  3781                     (--sc_n_20);
  3784             (sc_term_22 = term);
  3785             if (!(sc_term_22 instanceof sc_Pair))
  3786                 (optrOpnd = sc_term_22);
  3787             else
  3788                 (optrOpnd = (new sc_Pair((BgL_sc_symbolzd2ze3symbolzd2record_1ze3_nboyer((sc_term_22.car))), (translate_args_nboyer((sc_term_22.cdr))))));
  3789             (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)));
  3790             (answer = (tautologyp_nboyer((rewrite_nboyer(sc_term_21)), null, null)));
  3791             (sc_write(rewrite_count_nboyer));
  3792             (sc_display(" rewrites"));
  3793             (sc_newline());
  3794             if ((answer!== false))
  3795                 return rewrite_count_nboyer;
  3796             else
  3797                 return false;
  3799     };
  3801 /* Exported Variables */
  3802 var BgL_parsezd2ze3nbzd2treesze3;
  3803 var BgL_earleyzd2benchmarkzd2;
  3804 var BgL_parsezd2ze3parsedzf3zc2;
  3805 var test;
  3806 var BgL_parsezd2ze3treesz31;
  3807 var BgL_makezd2parserzd2;
  3808 /* End Exports */
  3810 var const_earley;
  3812     (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)));
  3813     BgL_makezd2parserzd2 = function(grammar, lexer) {
  3814         var i;
  3815         var parser_descr;
  3816         var def_loop;
  3817         var nb_nts;
  3818         var names;
  3819         var steps;
  3820         var predictors;
  3821         var enders;
  3822         var starters;
  3823         var nts;
  3824         var sc_names_1;
  3825         var sc_steps_2;
  3826         var sc_predictors_3;
  3827         var sc_enders_4;
  3828         var sc_starters_5;
  3829         var nb_confs;
  3830         var BgL_sc_defzd2loop_6zd2;
  3831         var BgL_sc_nbzd2nts_7zd2;
  3832         var sc_nts_8;
  3833         var BgL_sc_defzd2loop_9zd2;
  3834         var ind;
  3836             ind = function(nt, sc_nts_10) {
  3837                 var i;
  3839                     (i = ((sc_nts_10.length)-(1)));
  3840                     while (true) {
  3841                         if ((i>=(0)))
  3842                             if ((sc_isEqual((sc_nts_10[i]), nt)))
  3843                                 return i;
  3844                             else
  3845                                 (--i);
  3846                         else
  3847                             return false;
  3850             };
  3851             (sc_nts_8 = ((BgL_sc_defzd2loop_9zd2 = function(defs, sc_nts_11) {
  3852                 var rule_loop;
  3853                 var head;
  3854                 var def;
  3855                 return ((defs instanceof sc_Pair)?((def = (defs.car)), (head = (def.car)), (rule_loop = function(rules, sc_nts_12) {
  3856                     var nt;
  3857                     var l;
  3858                     var sc_nts_13;
  3859                     var rule;
  3860                     if ((rules instanceof sc_Pair))
  3862                             (rule = (rules.car));
  3863                             (l = rule);
  3864                             (sc_nts_13 = sc_nts_12);
  3865                             while ((l instanceof sc_Pair)) {
  3867                                     (nt = (l.car));
  3868                                     (l = (l.cdr));
  3869                                     (sc_nts_13 = (((sc_member(nt, sc_nts_13))!== false)?sc_nts_13:(new sc_Pair(nt, sc_nts_13))));
  3872                             return (rule_loop((rules.cdr), sc_nts_13));
  3874                     else
  3875                         return (BgL_sc_defzd2loop_9zd2((defs.cdr), sc_nts_12));
  3876                 }), (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)))));
  3877             }), (BgL_sc_defzd2loop_9zd2(grammar, null))));
  3878             (BgL_sc_nbzd2nts_7zd2 = (sc_nts_8.length));
  3879             (nb_confs = (((BgL_sc_defzd2loop_6zd2 = function(defs, BgL_sc_nbzd2confs_14zd2) {
  3880                 var rule_loop;
  3881                 var def;
  3882                 return ((defs instanceof sc_Pair)?((def = (defs.car)), (rule_loop = function(rules, BgL_sc_nbzd2confs_15zd2) {
  3883                     var l;
  3884                     var BgL_sc_nbzd2confs_16zd2;
  3885                     var rule;
  3886                     if ((rules instanceof sc_Pair))
  3888                             (rule = (rules.car));
  3889                             (l = rule);
  3890                             (BgL_sc_nbzd2confs_16zd2 = BgL_sc_nbzd2confs_15zd2);
  3891                             while ((l instanceof sc_Pair)) {
  3893                                     (l = (l.cdr));
  3894                                     (++BgL_sc_nbzd2confs_16zd2);
  3897                             return (rule_loop((rules.cdr), (BgL_sc_nbzd2confs_16zd2+(1))));
  3899                     else
  3900                         return (BgL_sc_defzd2loop_6zd2((defs.cdr), BgL_sc_nbzd2confs_15zd2));
  3901                 }), (rule_loop((def.cdr), BgL_sc_nbzd2confs_14zd2))):BgL_sc_nbzd2confs_14zd2);
  3902             }), (BgL_sc_defzd2loop_6zd2(grammar, (0))))+BgL_sc_nbzd2nts_7zd2));
  3903             (sc_starters_5 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
  3904             (sc_enders_4 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
  3905             (sc_predictors_3 = (sc_makeVector(BgL_sc_nbzd2nts_7zd2, null)));
  3906             (sc_steps_2 = (sc_makeVector(nb_confs, false)));
  3907             (sc_names_1 = (sc_makeVector(nb_confs, false)));
  3908             (nts = sc_nts_8);
  3909             (starters = sc_starters_5);
  3910             (enders = sc_enders_4);
  3911             (predictors = sc_predictors_3);
  3912             (steps = sc_steps_2);
  3913             (names = sc_names_1);
  3914             (nb_nts = (sc_nts_8.length));
  3915             (i = (nb_nts-(1)));
  3916             while ((i>=(0))) {
  3918                     (sc_steps_2[i] = (i-nb_nts));
  3919                     (sc_names_1[i] = (sc_list((sc_nts_8[i]), (0))));
  3920                     (sc_enders_4[i] = (sc_list(i)));
  3921                     (--i);
  3924             def_loop = function(defs, conf) {
  3925                 var rule_loop;
  3926                 var head;
  3927                 var def;
  3928                 return ((defs instanceof sc_Pair)?((def = (defs.car)), (head = (def.car)), (rule_loop = function(rules, conf, rule_num) {
  3929                     var i;
  3930                     var sc_i_17;
  3931                     var nt;
  3932                     var l;
  3933                     var sc_conf_18;
  3934                     var sc_i_19;
  3935                     var rule;
  3936                     if ((rules instanceof sc_Pair))
  3938                             (rule = (rules.car));
  3939                             (names[conf] = (sc_list(head, rule_num)));
  3940                             (sc_i_19 = (ind(head, nts)));
  3941                             (starters[sc_i_19] = (new sc_Pair(conf, (starters[sc_i_19]))));
  3942                             (l = rule);
  3943                             (sc_conf_18 = conf);
  3944                             while ((l instanceof sc_Pair)) {
  3946                                     (nt = (l.car));
  3947                                     (steps[sc_conf_18] = (ind(nt, nts)));
  3948                                     (sc_i_17 = (ind(nt, nts)));
  3949                                     (predictors[sc_i_17] = (new sc_Pair(sc_conf_18, (predictors[sc_i_17]))));
  3950                                     (l = (l.cdr));
  3951                                     (++sc_conf_18);
  3954                             (steps[sc_conf_18] = ((ind(head, nts))-nb_nts));
  3955                             (i = (ind(head, nts)));
  3956                             (enders[i] = (new sc_Pair(sc_conf_18, (enders[i]))));
  3957                             return (rule_loop((rules.cdr), (sc_conf_18+(1)), (rule_num+(1))));
  3959                     else
  3960                         return (def_loop((defs.cdr), conf));
  3961                 }), (rule_loop((def.cdr), conf, (1)))):undefined);
  3962             };
  3963             (def_loop(grammar, (sc_nts_8.length)));
  3964             (parser_descr = [lexer, sc_nts_8, sc_starters_5, sc_enders_4, sc_predictors_3, sc_steps_2, sc_names_1]);
  3965             return function(input) {
  3966                 var optrOpnd;
  3967                 var sc_optrOpnd_20;
  3968                 var sc_optrOpnd_21;
  3969                 var sc_optrOpnd_22;
  3970                 var loop1;
  3971                 var BgL_sc_stateza2_23za2;
  3972                 var toks;
  3973                 var BgL_sc_nbzd2nts_24zd2;
  3974                 var sc_steps_25;
  3975                 var sc_enders_26;
  3976                 var state_num;
  3977                 var BgL_sc_statesza2_27za2;
  3978                 var states;
  3979                 var i;
  3980                 var conf;
  3981                 var l;
  3982                 var tok_nts;
  3983                 var sc_i_28;
  3984                 var sc_i_29;
  3985                 var l1;
  3986                 var l2;
  3987                 var tok;
  3988                 var tail1129;
  3989                 var L1125;
  3990                 var goal_enders;
  3991                 var BgL_sc_statesza2_30za2;
  3992                 var BgL_sc_nbzd2nts_31zd2;
  3993                 var BgL_sc_nbzd2confs_32zd2;
  3994                 var nb_toks;
  3995                 var goal_starters;
  3996                 var sc_states_33;
  3997                 var BgL_sc_nbzd2confs_34zd2;
  3998                 var BgL_sc_nbzd2toks_35zd2;
  3999                 var sc_toks_36;
  4000                 var falseHead1128;
  4001                 var sc_names_37;
  4002                 var sc_steps_38;
  4003                 var sc_predictors_39;
  4004                 var sc_enders_40;
  4005                 var sc_starters_41;
  4006                 var sc_nts_42;
  4007                 var lexer;
  4008                 var sc_ind_43;
  4009                 var make_states;
  4010                 var BgL_sc_confzd2setzd2getza2_44za2;
  4011                 var conf_set_merge_new_bang;
  4012                 var conf_set_adjoin;
  4013                 var BgL_sc_confzd2setzd2adjoinza2_45za2;
  4014                 var BgL_sc_confzd2setzd2adjoinza2za2_46z00;
  4015                 var conf_set_union;
  4016                 var forw;
  4017                 var is_parsed;
  4018                 var deriv_trees;
  4019                 var BgL_sc_derivzd2treesza2_47z70;
  4020                 var nb_deriv_trees;
  4021                 var BgL_sc_nbzd2derivzd2treesza2_48za2;
  4023                     sc_ind_43 = function(nt, sc_nts_49) {
  4024                         var i;
  4026                             (i = ((sc_nts_49.length)-(1)));
  4027                             while (true) {
  4028                                 if ((i>=(0)))
  4029                                     if ((sc_isEqual((sc_nts_49[i]), nt)))
  4030                                         return i;
  4031                                     else
  4032                                         (--i);
  4033                                 else
  4034                                     return false;
  4037                     };
  4038                     make_states = function(BgL_sc_nbzd2toks_50zd2, BgL_sc_nbzd2confs_51zd2) {
  4039                         var v;
  4040                         var i;
  4041                         var sc_states_52;
  4043                             (sc_states_52 = (sc_makeVector((BgL_sc_nbzd2toks_50zd2+(1)), false)));
  4044                             (i = BgL_sc_nbzd2toks_50zd2);
  4045                             while ((i>=(0))) {
  4047                                     (v = (sc_makeVector((BgL_sc_nbzd2confs_51zd2+(1)), false)));
  4048                                     (v[(0)] = (-1));
  4049                                     (sc_states_52[i] = v);
  4050                                     (--i);
  4053                             return sc_states_52;
  4055                     };
  4056                     BgL_sc_confzd2setzd2getza2_44za2 = function(state, BgL_sc_statezd2num_53zd2, sc_conf_54) {
  4057                         var conf_set;
  4058                         var BgL_sc_confzd2set_55zd2;
  4059                         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)));
  4060                     };
  4061                     conf_set_merge_new_bang = function(conf_set) {
  4062                         return ((conf_set[((conf_set[(1)])+(5))] = (conf_set[(4)])), (conf_set[(1)] = (conf_set[(3)])), (conf_set[(3)] = (-1)), (conf_set[(4)] = (-1)));
  4063                     };
  4064                     conf_set_adjoin = function(state, conf_set, sc_conf_56, i) {
  4065                         var tail;
  4066                         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));
  4067                     };
  4068                     BgL_sc_confzd2setzd2adjoinza2_45za2 = function(sc_states_57, BgL_sc_statezd2num_58zd2, l, i) {
  4069                         var conf_set;
  4070                         var sc_conf_59;
  4071                         var l1;
  4072                         var state;
  4074                             (state = (sc_states_57[BgL_sc_statezd2num_58zd2]));
  4075                             (l1 = l);
  4076                             while ((l1 instanceof sc_Pair)) {
  4078                                     (sc_conf_59 = (l1.car));
  4079                                     (conf_set = (BgL_sc_confzd2setzd2getza2_44za2(state, BgL_sc_statezd2num_58zd2, sc_conf_59)));
  4080                                     if (((conf_set[(i+(5))])=== false))
  4082                                             (conf_set_adjoin(state, conf_set, sc_conf_59, i));
  4083                                             (l1 = (l1.cdr));
  4085                                     else
  4086                                         (l1 = (l1.cdr));
  4089                             return undefined;
  4091                     };
  4092                     BgL_sc_confzd2setzd2adjoinza2za2_46z00 = function(sc_states_60, BgL_sc_statesza2_61za2, BgL_sc_statezd2num_62zd2, sc_conf_63, i) {
  4093                         var BgL_sc_confzd2setza2_64z70;
  4094                         var BgL_sc_stateza2_65za2;
  4095                         var conf_set;
  4096                         var state;
  4097                         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));
  4098                     };
  4099                     conf_set_union = function(state, conf_set, sc_conf_66, other_set) {
  4100                         var i;
  4102                             (i = (other_set[(2)]));
  4103                             while ((i>=(0))) {
  4104                                 if (((conf_set[(i+(5))])=== false))
  4106                                         (conf_set_adjoin(state, conf_set, sc_conf_66, i));
  4107                                         (i = (other_set[(i+(5))]));
  4109                                 else
  4110                                     (i = (other_set[(i+(5))]));
  4112                             return undefined;
  4114                     };
  4115                     forw = function(sc_states_67, BgL_sc_statezd2num_68zd2, sc_starters_69, sc_enders_70, sc_predictors_71, sc_steps_72, sc_nts_73) {
  4116                         var next_set;
  4117                         var next;
  4118                         var conf_set;
  4119                         var ender;
  4120                         var l;
  4121                         var starter_set;
  4122                         var starter;
  4123                         var sc_l_74;
  4124                         var sc_loop1_75;
  4125                         var head;
  4126                         var BgL_sc_confzd2set_76zd2;
  4127                         var BgL_sc_statezd2num_77zd2;
  4128                         var state;
  4129                         var sc_states_78;
  4130                         var preds;
  4131                         var BgL_sc_confzd2set_79zd2;
  4132                         var step;
  4133                         var sc_conf_80;
  4134                         var BgL_sc_nbzd2nts_81zd2;
  4135                         var sc_state_82;
  4137                             (sc_state_82 = (sc_states_67[BgL_sc_statezd2num_68zd2]));
  4138                             (BgL_sc_nbzd2nts_81zd2 = (sc_nts_73.length));
  4139                             while (true) {
  4141                                     (sc_conf_80 = (sc_state_82[(0)]));
  4142                                     if ((sc_conf_80>=(0)))
  4144                                             (step = (sc_steps_72[sc_conf_80]));
  4145                                             (BgL_sc_confzd2set_79zd2 = (sc_state_82[(sc_conf_80+(1))]));
  4146                                             (head = (BgL_sc_confzd2set_79zd2[(4)]));
  4147                                             (sc_state_82[(0)] = (BgL_sc_confzd2set_79zd2[(0)]));
  4148                                             (conf_set_merge_new_bang(BgL_sc_confzd2set_79zd2));
  4149                                             if ((step>=(0)))
  4151                                                     (sc_l_74 = (sc_starters_69[step]));
  4152                                                     while ((sc_l_74 instanceof sc_Pair)) {
  4154                                                             (starter = (sc_l_74.car));
  4155                                                             (starter_set = (BgL_sc_confzd2setzd2getza2_44za2(sc_state_82, BgL_sc_statezd2num_68zd2, starter)));
  4156                                                             if (((starter_set[(BgL_sc_statezd2num_68zd2+(5))])=== false))
  4158                                                                     (conf_set_adjoin(sc_state_82, starter_set, starter, BgL_sc_statezd2num_68zd2));
  4159                                                                     (sc_l_74 = (sc_l_74.cdr));
  4161                                                             else
  4162                                                                 (sc_l_74 = (sc_l_74.cdr));
  4165                                                     (l = (sc_enders_70[step]));
  4166                                                     while ((l instanceof sc_Pair)) {
  4168                                                             (ender = (l.car));
  4169                                                             if ((((conf_set = (sc_state_82[(ender+(1))])), ((conf_set!== false)?(conf_set[(BgL_sc_statezd2num_68zd2+(5))]):false))!== false))
  4171                                                                     (next = (sc_conf_80+(1)));
  4172                                                                     (next_set = (BgL_sc_confzd2setzd2getza2_44za2(sc_state_82, BgL_sc_statezd2num_68zd2, next)));
  4173                                                                     (conf_set_union(sc_state_82, next_set, next, BgL_sc_confzd2set_79zd2));
  4174                                                                     (l = (l.cdr));
  4176                                                             else
  4177                                                                 (l = (l.cdr));
  4181                                             else
  4183                                                     (preds = (sc_predictors_71[(step+BgL_sc_nbzd2nts_81zd2)]));
  4184                                                     (sc_states_78 = sc_states_67);
  4185                                                     (state = sc_state_82);
  4186                                                     (BgL_sc_statezd2num_77zd2 = BgL_sc_statezd2num_68zd2);
  4187                                                     (BgL_sc_confzd2set_76zd2 = BgL_sc_confzd2set_79zd2);
  4188                                                     sc_loop1_75 = function(l) {
  4189                                                         var sc_state_83;
  4190                                                         var BgL_sc_nextzd2set_84zd2;
  4191                                                         var sc_next_85;
  4192                                                         var pred_set;
  4193                                                         var i;
  4194                                                         var pred;
  4195                                                         if ((l instanceof sc_Pair))
  4197                                                                 (pred = (l.car));
  4198                                                                 (i = head);
  4199                                                                 while ((i>=(0))) {
  4201                                                                         (pred_set = ((sc_state_83 = (sc_states_78[i])), (sc_state_83[(pred+(1))])));
  4202                                                                         if ((pred_set!== false))
  4204                                                                                 (sc_next_85 = (pred+(1)));
  4205                                                                                 (BgL_sc_nextzd2set_84zd2 = (BgL_sc_confzd2setzd2getza2_44za2(state, BgL_sc_statezd2num_77zd2, sc_next_85)));
  4206                                                                                 (conf_set_union(state, BgL_sc_nextzd2set_84zd2, sc_next_85, pred_set));
  4208                                                                         (i = (BgL_sc_confzd2set_76zd2[(i+(5))]));
  4211                                                                 return (sc_loop1_75((l.cdr)));
  4213                                                         else
  4214                                                             return undefined;
  4215                                                     };
  4216                                                     (sc_loop1_75(preds));
  4219                                     else
  4220                                         return undefined;
  4224                     };
  4225                     is_parsed = function(nt, i, j, sc_nts_86, sc_enders_87, sc_states_88) {
  4226                         var conf_set;
  4227                         var state;
  4228                         var sc_conf_89;
  4229                         var l;
  4230                         var BgL_sc_ntza2_90za2;
  4232                             (BgL_sc_ntza2_90za2 = (sc_ind_43(nt, sc_nts_86)));
  4233                             if ((BgL_sc_ntza2_90za2!== false))
  4235                                     (sc_nts_86.length);
  4236                                     (l = (sc_enders_87[BgL_sc_ntza2_90za2]));
  4237                                     while (true) {
  4238                                         if ((l instanceof sc_Pair))
  4240                                                 (sc_conf_89 = (l.car));
  4241                                                 if ((((state = (sc_states_88[j])), (conf_set = (state[(sc_conf_89+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
  4242                                                     return true;
  4243                                                 else
  4244                                                     (l = (l.cdr));
  4246                                         else
  4247                                             return false;
  4250                             else
  4251                                 return false;
  4253                     };
  4254                     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) {
  4255                         var sc_loop1_98;
  4256                         var prev;
  4257                         var name;
  4258                         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) {
  4259                             var loop2;
  4260                             var ender_set;
  4261                             var state;
  4262                             var ender;
  4263                             var l1;
  4264                             var l2;
  4265                             while (true) {
  4266                                 if ((l1 instanceof sc_Pair))
  4268                                         (ender = (l1.car));
  4269                                         (ender_set = ((state = (sc_states_96[j])), (state[(ender+(1))])));
  4270                                         if ((ender_set!== false))
  4272                                                 loop2 = function(k, l2) {
  4273                                                     var loop3;
  4274                                                     var ender_trees;
  4275                                                     var prev_trees;
  4276                                                     var conf_set;
  4277                                                     var sc_state_99;
  4278                                                     var k;
  4279                                                     var l2;
  4280                                                     while (true) {
  4281                                                         if ((k>=(0)))
  4282                                                             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)))
  4284                                                                     (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)));
  4285                                                                     (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)));
  4286                                                                     loop3 = function(l3, l2) {
  4287                                                                         var l4;
  4288                                                                         var sc_l2_100;
  4289                                                                         var ender_tree;
  4290                                                                         if ((l3 instanceof sc_Pair))
  4292                                                                                 (ender_tree = (sc_list((l3.car))));
  4293                                                                                 (l4 = prev_trees);
  4294                                                                                 (sc_l2_100 = l2);
  4295                                                                                 while ((l4 instanceof sc_Pair)) {
  4297                                                                                         (sc_l2_100 = (new sc_Pair((sc_append((l4.car), ender_tree)), sc_l2_100)));
  4298                                                                                         (l4 = (l4.cdr));
  4301                                                                                 return (loop3((l3.cdr), sc_l2_100));
  4303                                                                         else
  4304                                                                             return (loop2((ender_set[(k+(5))]), l2));
  4305                                                                     };
  4306                                                                     return (loop3(ender_trees, l2));
  4308                                                             else
  4309                                                                 (k = (ender_set[(k+(5))]));
  4310                                                         else
  4311                                                             return (sc_loop1_98((l1.cdr), l2));
  4313                                                 };
  4314                                                 return (loop2((ender_set[(2)]), l2));
  4316                                         else
  4317                                             (l1 = (l1.cdr));
  4319                                 else
  4320                                     return l2;
  4322                         }), (sc_loop1_98((sc_enders_92[(sc_steps_93[prev])]), null)))));
  4323                     };
  4324                     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) {
  4325                         var conf_set;
  4326                         var state;
  4327                         var sc_conf_107;
  4328                         var l;
  4329                         var trees;
  4330                         var BgL_sc_nbzd2nts_108zd2;
  4331                         var BgL_sc_ntza2_109za2;
  4333                             (BgL_sc_ntza2_109za2 = (sc_ind_43(nt, sc_nts_101)));
  4334                             if ((BgL_sc_ntza2_109za2!== false))
  4336                                     (BgL_sc_nbzd2nts_108zd2 = (sc_nts_101.length));
  4337                                     (l = (sc_enders_102[BgL_sc_ntza2_109za2]));
  4338                                     (trees = null);
  4339                                     while ((l instanceof sc_Pair)) {
  4341                                             (sc_conf_107 = (l.car));
  4342                                             if ((((state = (sc_states_106[j])), (conf_set = (state[(sc_conf_107+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
  4344                                                     (l = (l.cdr));
  4345                                                     (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)));
  4347                                             else
  4348                                                 (l = (l.cdr));
  4351                                     return trees;
  4353                             else
  4354                                 return false;
  4356                     };
  4357                     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) {
  4358                         var sc_loop1_116;
  4359                         var tmp1124;
  4360                         var prev;
  4361                         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) {
  4362                             var nb_ender_trees;
  4363                             var nb_prev_trees;
  4364                             var conf_set;
  4365                             var state;
  4366                             var k;
  4367                             var n;
  4368                             var ender_set;
  4369                             var sc_state_117;
  4370                             var ender;
  4371                             var l;
  4372                             var sc_n_118;
  4373                             while (true) {
  4374                                 if ((l instanceof sc_Pair))
  4376                                         (ender = (l.car));
  4377                                         (ender_set = ((sc_state_117 = (sc_states_114[j])), (sc_state_117[(ender+(1))])));
  4378                                         if ((ender_set!== false))
  4380                                                 (k = (ender_set[(2)]));
  4381                                                 (n = sc_n_118);
  4382                                                 while ((k>=(0))) {
  4383                                                     if (((k>=i)&&(((state = (sc_states_114[k])), (conf_set = (state[(prev+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false)))
  4385                                                             (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)));
  4386                                                             (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)));
  4387                                                             (k = (ender_set[(k+(5))]));
  4388                                                             (n +=(nb_prev_trees*nb_ender_trees));
  4390                                                     else
  4391                                                         (k = (ender_set[(k+(5))]));
  4393                                                 return (sc_loop1_116((l.cdr), n));
  4395                                         else
  4396                                             (l = (l.cdr));
  4398                                 else
  4399                                     return sc_n_118;
  4401                         }), (sc_loop1_116((sc_enders_111[(sc_steps_112[prev])]), (0))))));
  4402                     };
  4403                     BgL_sc_nbzd2derivzd2treesza2_48za2 = function(nt, i, j, sc_nts_119, sc_enders_120, sc_steps_121, sc_toks_122, sc_states_123) {
  4404                         var conf_set;
  4405                         var state;
  4406                         var sc_conf_124;
  4407                         var l;
  4408                         var nb_trees;
  4409                         var BgL_sc_nbzd2nts_125zd2;
  4410                         var BgL_sc_ntza2_126za2;
  4412                             (BgL_sc_ntza2_126za2 = (sc_ind_43(nt, sc_nts_119)));
  4413                             if ((BgL_sc_ntza2_126za2!== false))
  4415                                     (BgL_sc_nbzd2nts_125zd2 = (sc_nts_119.length));
  4416                                     (l = (sc_enders_120[BgL_sc_ntza2_126za2]));
  4417                                     (nb_trees = (0));
  4418                                     while ((l instanceof sc_Pair)) {
  4420                                             (sc_conf_124 = (l.car));
  4421                                             if ((((state = (sc_states_123[j])), (conf_set = (state[(sc_conf_124+(1))])), ((conf_set!== false)?(conf_set[(i+(5))]):false))!== false))
  4423                                                     (l = (l.cdr));
  4424                                                     (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));
  4426                                             else
  4427                                                 (l = (l.cdr));
  4430                                     return nb_trees;
  4432                             else
  4433                                 return false;
  4435                     };
  4436                     (lexer = (parser_descr[(0)]));
  4437                     (sc_nts_42 = (parser_descr[(1)]));
  4438                     (sc_starters_41 = (parser_descr[(2)]));
  4439                     (sc_enders_40 = (parser_descr[(3)]));
  4440                     (sc_predictors_39 = (parser_descr[(4)]));
  4441                     (sc_steps_38 = (parser_descr[(5)]));
  4442                     (sc_names_37 = (parser_descr[(6)]));
  4443                     (falseHead1128 = (new sc_Pair(null, null)));
  4444                     (L1125 = (lexer(input)));
  4445                     (tail1129 = falseHead1128);
  4446                     while (!(L1125 === null)) {
  4448                             (tok = (L1125.car));
  4449                             (l1 = (tok.cdr));
  4450                             (l2 = null);
  4451                             while ((l1 instanceof sc_Pair)) {
  4453                                     (sc_i_29 = (sc_ind_43((l1.car), sc_nts_42)));
  4454                                     if ((sc_i_29!== false))
  4456                                             (l1 = (l1.cdr));
  4457                                             (l2 = (new sc_Pair(sc_i_29, l2)));
  4459                                     else
  4460                                         (l1 = (l1.cdr));
  4463                             (sc_optrOpnd_22 = (new sc_Pair((tok.car), (sc_reverse(l2)))));
  4464                             (sc_optrOpnd_21 = (new sc_Pair(sc_optrOpnd_22, null)));
  4465                             (tail1129.cdr = sc_optrOpnd_21);
  4466                             (tail1129 = (tail1129.cdr));
  4467                             (L1125 = (L1125.cdr));
  4470                     (sc_optrOpnd_20 = (falseHead1128.cdr));
  4471                     (sc_toks_36 = (sc_list2vector(sc_optrOpnd_20)));
  4472                     (BgL_sc_nbzd2toks_35zd2 = (sc_toks_36.length));
  4473                     (BgL_sc_nbzd2confs_34zd2 = (sc_steps_38.length));
  4474                     (sc_states_33 = (make_states(BgL_sc_nbzd2toks_35zd2, BgL_sc_nbzd2confs_34zd2)));
  4475                     (goal_starters = (sc_starters_41[(0)]));
  4476                     (BgL_sc_confzd2setzd2adjoinza2_45za2(sc_states_33, (0), goal_starters, (0)));
  4477                     (forw(sc_states_33, (0), sc_starters_41, sc_enders_40, sc_predictors_39, sc_steps_38, sc_nts_42));
  4478                     (sc_i_28 = (0));
  4479                     while ((sc_i_28<BgL_sc_nbzd2toks_35zd2)) {
  4481                             (tok_nts = ((sc_toks_36[sc_i_28]).cdr));
  4482                             (BgL_sc_confzd2setzd2adjoinza2_45za2(sc_states_33, (sc_i_28+(1)), tok_nts, sc_i_28));
  4483                             (forw(sc_states_33, (sc_i_28+(1)), sc_starters_41, sc_enders_40, sc_predictors_39, sc_steps_38, sc_nts_42));
  4484                             (++sc_i_28);
  4487                     (nb_toks = (sc_toks_36.length));
  4488                     (BgL_sc_nbzd2confs_32zd2 = (sc_steps_38.length));
  4489                     (BgL_sc_nbzd2nts_31zd2 = (sc_nts_42.length));
  4490                     (BgL_sc_statesza2_30za2 = (make_states(nb_toks, BgL_sc_nbzd2confs_32zd2)));
  4491                     (goal_enders = (sc_enders_40[(0)]));
  4492                     (l = goal_enders);
  4493                     while ((l instanceof sc_Pair)) {
  4495                             (conf = (l.car));
  4496                             (BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_33, BgL_sc_statesza2_30za2, nb_toks, conf, (0)));
  4497                             (l = (l.cdr));
  4500                     (i = nb_toks);
  4501                     while ((i>=(0))) {
  4503                             (states = sc_states_33);
  4504                             (BgL_sc_statesza2_27za2 = BgL_sc_statesza2_30za2);
  4505                             (state_num = i);
  4506                             (sc_enders_26 = sc_enders_40);
  4507                             (sc_steps_25 = sc_steps_38);
  4508                             (BgL_sc_nbzd2nts_24zd2 = BgL_sc_nbzd2nts_31zd2);
  4509                             (toks = sc_toks_36);
  4510                             (BgL_sc_stateza2_23za2 = (BgL_sc_statesza2_30za2[i]));
  4511                             loop1 = function() {
  4512                                 var sc_loop1_127;
  4513                                 var prev;
  4514                                 var BgL_sc_statesza2_128za2;
  4515                                 var sc_states_129;
  4516                                 var j;
  4517                                 var i;
  4518                                 var sc_i_130;
  4519                                 var head;
  4520                                 var conf_set;
  4521                                 var sc_conf_131;
  4523                                     (sc_conf_131 = (BgL_sc_stateza2_23za2[(0)]));
  4524                                     if ((sc_conf_131>=(0)))
  4526                                             (conf_set = (BgL_sc_stateza2_23za2[(sc_conf_131+(1))]));
  4527                                             (head = (conf_set[(4)]));
  4528                                             (BgL_sc_stateza2_23za2[(0)] = (conf_set[(0)]));
  4529                                             (conf_set_merge_new_bang(conf_set));
  4530                                             (sc_i_130 = head);
  4531                                             while ((sc_i_130>=(0))) {
  4533                                                     (i = sc_i_130);
  4534                                                     (j = state_num);
  4535                                                     (sc_states_129 = states);
  4536                                                     (BgL_sc_statesza2_128za2 = BgL_sc_statesza2_27za2);
  4537                                                     (prev = (sc_conf_131-(1)));
  4538                                                     if (((sc_conf_131>=BgL_sc_nbzd2nts_24zd2)&&((sc_steps_25[prev])>=(0))))
  4540                                                             sc_loop1_127 = function(l) {
  4541                                                                 var k;
  4542                                                                 var ender_set;
  4543                                                                 var state;
  4544                                                                 var ender;
  4545                                                                 var l;
  4546                                                                 while (true) {
  4547                                                                     if ((l instanceof sc_Pair))
  4549                                                                             (ender = (l.car));
  4550                                                                             (ender_set = ((state = (sc_states_129[j])), (state[(ender+(1))])));
  4551                                                                             if ((ender_set!== false))
  4553                                                                                     (k = (ender_set[(2)]));
  4554                                                                                     while ((k>=(0))) {
  4556                                                                                             if ((k>=i))
  4557                                                                                                 if (((BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_129, BgL_sc_statesza2_128za2, k, prev, i))!== false))
  4558                                                                                                     (BgL_sc_confzd2setzd2adjoinza2za2_46z00(sc_states_129, BgL_sc_statesza2_128za2, j, ender, k));
  4559                                                                                             (k = (ender_set[(k+(5))]));
  4562                                                                                     return (sc_loop1_127((l.cdr)));
  4564                                                                             else
  4565                                                                                 (l = (l.cdr));
  4567                                                                     else
  4568                                                                         return undefined;
  4570                                                             };
  4571                                                             (sc_loop1_127((sc_enders_26[(sc_steps_25[prev])])));
  4573                                                     (sc_i_130 = (conf_set[(sc_i_130+(5))]));
  4576                                             return (loop1());
  4578                                     else
  4579                                         return undefined;
  4581                             };
  4582                             (loop1());
  4583                             (--i);
  4586                     (optrOpnd = BgL_sc_statesza2_30za2);
  4587                     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];
  4589             };
  4591     };
  4592     BgL_parsezd2ze3parsedzf3zc2 = function(parse, nt, i, j) {
  4593         var is_parsed;
  4594         var states;
  4595         var enders;
  4596         var nts;
  4597         return ((nts = (parse[(0)])), (enders = (parse[(2)])), (states = (parse[(7)])), (is_parsed = (parse[(8)])), (is_parsed(nt, i, j, nts, enders, states)));
  4598     };
  4599     BgL_parsezd2ze3treesz31 = function(parse, nt, i, j) {
  4600         var BgL_sc_derivzd2treesza2_132z70;
  4601         var states;
  4602         var toks;
  4603         var names;
  4604         var steps;
  4605         var enders;
  4606         var nts;
  4607         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)));
  4608     };
  4609     BgL_parsezd2ze3nbzd2treesze3 = function(parse, nt, i, j) {
  4610         var BgL_sc_nbzd2derivzd2treesza2_133za2;
  4611         var states;
  4612         var toks;
  4613         var steps;
  4614         var enders;
  4615         var nts;
  4616         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)));
  4617     };
  4618     test = function(k) {
  4619         var x;
  4620         var p;
  4621         return ((p = (BgL_makezd2parserzd2(const_earley, function(l) {
  4622             var sc_x_134;
  4623             var tail1134;
  4624             var L1130;
  4625             var falseHead1133;
  4627                 (falseHead1133 = (new sc_Pair(null, null)));
  4628                 (tail1134 = falseHead1133);
  4629                 (L1130 = l);
  4630                 while (!(L1130 === null)) {
  4632                         (tail1134.cdr = (new sc_Pair(((sc_x_134 = (L1130.car)), (sc_list(sc_x_134, sc_x_134))), null)));
  4633                         (tail1134 = (tail1134.cdr));
  4634                         (L1130 = (L1130.cdr));
  4637                 return (falseHead1133.cdr);
  4639         }))), (x = (p((sc_vector2list((sc_makeVector(k, "\u1E9Ca"))))))), (sc_length((BgL_parsezd2ze3treesz31(x, "\u1E9Cs", (0), k)))));
  4640     };
  4641     BgL_earleyzd2benchmarkzd2 = function() {
  4642         var args = null;
  4643         for (var sc_tmp = arguments.length - 1; sc_tmp >= 0; sc_tmp--) {
  4644             args = sc_cons(arguments[sc_tmp], args);
  4646         var k;
  4647         return ((k = ((args === null)?(7):(args.car))), (BgL_runzd2benchmarkzd2("earley", (1), function() {
  4648             return (test(k));
  4649         }, function(result) {
  4650             return ((sc_display(result)), (sc_newline()), result == 132);
  4651         })));
  4652     };
  4656 /************* END OF GENERATED CODE *************/
  4657 // Invoke this function to run a benchmark.
  4658 // The first argument is a string identifying the benchmark.
  4659 // The second argument is the number of times to run the benchmark.
  4660 // The third argument is a function that runs the benchmark.
  4661 // The fourth argument is a unary function that warns if the result
  4662 // returned by the benchmark is incorrect.
  4663 //
  4664 // Example:
  4665 // RunBenchmark("new Array()",
  4666 //              1,
  4667 //              function () { new Array(1000000); }
  4668 //              function (v) {
  4669 //                return (v instanceof Array) && (v.length == 1000000);
  4670 //              });
  4672 SC_DEFAULT_OUT = new sc_GenericOutputPort(function(s) {});
  4673 SC_ERROR_OUT = SC_DEFAULT_OUT;
  4675 function RunBenchmark(name, count, run, warn) {
  4676   for (var n = 0; n < count; ++n) {
  4677     result = run();
  4678     if (!warn(result)) {
  4679       throw new Error("Earley or Boyer did incorrect number of rewrites");
  4684 var BgL_runzd2benchmarkzd2 = RunBenchmark;

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