-
Notifications
You must be signed in to change notification settings - Fork 0
/
ohm.js
5834 lines (4910 loc) · 552 KB
/
ohm.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.ohm = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var ohm = require('..');
module.exports = ohm.makeRecipe(function() {
return new this.newGrammar("BuiltInRules")
.define("alnum", [], this.alt(this.app("letter"), this.app("digit")), "an alpha-numeric character")
.define("letter", [], this.alt(this.app("lower"), this.app("upper"), this.app("unicodeLtmo")), "a letter")
.define("digit", [], this.range("0", "9"), "a digit")
.define("hexDigit", [], this.alt(this.app("digit"), this.range("a", "f"), this.range("A", "F")), "a hexadecimal digit")
.define("ListOf", ["elem", "sep"], this.alt(this.app("NonemptyListOf", [this.param(0), this.param(1)]), this.app("EmptyListOf", [this.param(0), this.param(1)])))
.define("NonemptyListOf", ["elem", "sep"], this.seq(this.param(0), this.star(this.seq(this.param(1), this.param(0)))))
.define("EmptyListOf", ["elem", "sep"], this.seq())
.define("listOf", ["elem", "sep"], this.alt(this.app("nonemptyListOf", [this.param(0), this.param(1)]), this.app("emptyListOf", [this.param(0), this.param(1)])))
.define("nonemptyListOf", ["elem", "sep"], this.seq(this.param(0), this.star(this.seq(this.param(1), this.param(0)))))
.define("emptyListOf", ["elem", "sep"], this.seq())
.build();
});
},{"..":40}],2:[function(require,module,exports){
var ohm = require('..');
module.exports = ohm.makeRecipe(function() {
return new this.newGrammar("Ohm")
.withDefaultStartRule('Grammars')
.define("Grammars", [], this.star(this.app("Grammar")))
.define("Grammar", [], this.seq(this.app("ident"), this.opt(this.app("SuperGrammar")), this.prim("{"), this.star(this.app("Rule")), this.prim("}")))
.define("SuperGrammar", [], this.seq(this.prim("<:"), this.app("ident")))
.define("Rule_define", [], this.seq(this.app("ident"), this.opt(this.app("Formals")), this.opt(this.app("ruleDescr")), this.prim("="), this.app("Alt")))
.define("Rule_override", [], this.seq(this.app("ident"), this.opt(this.app("Formals")), this.prim(":="), this.app("Alt")))
.define("Rule_extend", [], this.seq(this.app("ident"), this.opt(this.app("Formals")), this.prim("+="), this.app("Alt")))
.define("Rule", [], this.alt(this.app("Rule_define"), this.app("Rule_override"), this.app("Rule_extend")))
.define("Formals", [], this.seq(this.prim("<"), this.app("ListOf", [this.app("ident"), this.prim(",")]), this.prim(">")))
.define("Params", [], this.seq(this.prim("<"), this.app("ListOf", [this.app("Seq"), this.prim(",")]), this.prim(">")))
.define("Alt", [], this.seq(this.app("Term"), this.star(this.seq(this.prim("|"), this.app("Term")))))
.define("Term_inline", [], this.seq(this.app("Seq"), this.app("caseName")))
.define("Term", [], this.alt(this.app("Term_inline"), this.app("Seq")))
.define("Seq", [], this.star(this.app("Iter")))
.define("Iter_star", [], this.seq(this.app("Pred"), this.prim("*")))
.define("Iter_plus", [], this.seq(this.app("Pred"), this.prim("+")))
.define("Iter_opt", [], this.seq(this.app("Pred"), this.prim("?")))
.define("Iter", [], this.alt(this.app("Iter_star"), this.app("Iter_plus"), this.app("Iter_opt"), this.app("Pred")))
.define("Pred_not", [], this.seq(this.prim("~"), this.app("Lex")))
.define("Pred_lookahead", [], this.seq(this.prim("&"), this.app("Lex")))
.define("Pred", [], this.alt(this.app("Pred_not"), this.app("Pred_lookahead"), this.app("Lex")))
.define("Lex_lex", [], this.seq(this.prim("#"), this.app("Base")))
.define("Lex", [], this.alt(this.app("Lex_lex"), this.app("Base")))
.define("Base_application", [], this.seq(this.app("ident"), this.opt(this.app("Params")), this.not(this.alt(this.seq(this.opt(this.app("ruleDescr")), this.prim("=")), this.prim(":="), this.prim("+=")))))
.define("Base_range", [], this.seq(this.app("Prim"), this.prim(".."), this.app("Prim")))
.define("Base_prim", [], this.app("Prim"))
.define("Base_paren", [], this.seq(this.prim("("), this.app("Alt"), this.prim(")")))
.define("Base_arr", [], this.seq(this.prim("["), this.app("Alt"), this.prim("]")))
.define("Base_str", [], this.seq(this.prim("``"), this.app("Alt"), this.prim("''")))
.define("Base_obj", [], this.seq(this.prim("{"), this.opt(this.prim("...")), this.prim("}")))
.define("Base_objWithProps", [], this.seq(this.prim("{"), this.app("Props"), this.opt(this.seq(this.prim(","), this.prim("..."))), this.prim("}")))
.define("Base", [], this.alt(this.app("Base_application"), this.app("Base_range"), this.app("Base_prim"), this.app("Base_paren"), this.app("Base_arr"), this.app("Base_str"), this.app("Base_obj"), this.app("Base_objWithProps")))
.define("Prim", [], this.alt(this.app("keyword"), this.app("string"), this.app("number")))
.define("Props", [], this.seq(this.app("Prop"), this.star(this.seq(this.prim(","), this.app("Prop")))))
.define("Prop", [], this.seq(this.alt(this.app("name"), this.app("string")), this.prim(":"), this.app("Alt")))
.define("ruleDescr", [], this.seq(this.prim("("), this.app("ruleDescrText"), this.prim(")")), "a rule description")
.define("ruleDescrText", [], this.star(this.seq(this.not(this.prim(")")), this.app("any"))))
.define("caseName", [], this.seq(this.prim("--"), this.star(this.seq(this.not(this.prim("\n")), this.app("space"))), this.app("name"), this.star(this.seq(this.not(this.prim("\n")), this.app("space"))), this.alt(this.prim("\n"), this.la(this.prim("}")))))
.define("name", [], this.seq(this.app("nameFirst"), this.star(this.app("nameRest"))), "a name")
.define("nameFirst", [], this.alt(this.prim("_"), this.app("letter")))
.define("nameRest", [], this.alt(this.prim("_"), this.app("alnum")))
.define("ident", [], this.seq(this.not(this.app("keyword")), this.app("name")), "an identifier")
.define("keyword_null", [], this.seq(this.prim("null"), this.not(this.app("nameRest"))))
.define("keyword_true", [], this.seq(this.prim("true"), this.not(this.app("nameRest"))))
.define("keyword_false", [], this.seq(this.prim("false"), this.not(this.app("nameRest"))))
.define("keyword", [], this.alt(this.app("keyword_null"), this.app("keyword_true"), this.app("keyword_false")))
.define("string", [], this.seq(this.prim("\""), this.star(this.app("strChar")), this.prim("\"")))
.define("strChar", [], this.alt(this.app("escapeChar"), this.seq(this.not(this.prim("\\")), this.not(this.prim("\"")), this.not(this.prim("\n")), this.app("any"))))
.define("escapeChar_backslash", [], this.prim("\\\\"))
.define("escapeChar_doubleQuote", [], this.prim("\\\""))
.define("escapeChar_singleQuote", [], this.prim("\\'"))
.define("escapeChar_backspace", [], this.prim("\\b"))
.define("escapeChar_lineFeed", [], this.prim("\\n"))
.define("escapeChar_carriageReturn", [], this.prim("\\r"))
.define("escapeChar_tab", [], this.prim("\\t"))
.define("escapeChar_unicodeEscape", [], this.seq(this.prim("\\u"), this.app("hexDigit"), this.app("hexDigit"), this.app("hexDigit"), this.app("hexDigit")))
.define("escapeChar_hexEscape", [], this.seq(this.prim("\\x"), this.app("hexDigit"), this.app("hexDigit")))
.define("escapeChar", [], this.alt(this.app("escapeChar_backslash"), this.app("escapeChar_doubleQuote"), this.app("escapeChar_singleQuote"), this.app("escapeChar_backspace"), this.app("escapeChar_lineFeed"), this.app("escapeChar_carriageReturn"), this.app("escapeChar_tab"), this.app("escapeChar_unicodeEscape"), this.app("escapeChar_hexEscape")), "an escape sequence")
.define("number", [], this.seq(this.opt(this.prim("-")), this.plus(this.app("digit"))), "a number")
.extend("space", [], this.alt(this.app("comment"), this.range("\u0000", " ")))
.define("comment_singleLine", [], this.seq(this.prim("//"), this.star(this.seq(this.not(this.prim("\n")), this.app("any"))), this.prim("\n")))
.define("comment_multiLine", [], this.seq(this.prim("/*"), this.star(this.seq(this.not(this.prim("*/")), this.app("any"))), this.prim("*/")))
.define("comment", [], this.alt(this.app("comment_singleLine"), this.app("comment_multiLine")))
.build();
});
},{"..":40}],3:[function(require,module,exports){
var ohm = require('..');
module.exports = ohm.makeRecipe(function() {
return new this.newGrammar("OperationsAndAttributes")
.withDefaultStartRule('NameNoFormals')
.define("NameNoFormals", [], this.app("name"))
.define("NameAndFormals", [], this.seq(this.app("name"), this.opt(this.app("Formals"))))
.define("Formals", [], this.seq(this.prim("("), this.app("ListOf", [this.app("name"), this.prim(",")]), this.prim(")")))
.define("name", [], this.seq(this.app("nameFirst"), this.star(this.app("nameRest"))), "a name")
.define("nameFirst", [], this.alt(this.prim("_"), this.app("letter")))
.define("nameRest", [], this.alt(this.prim("_"), this.app("alnum")))
.build();
});
},{"..":40}],4:[function(require,module,exports){
'use strict';
module.exports = require('./is-implemented')() ? Symbol : require('./polyfill');
},{"./is-implemented":5,"./polyfill":20}],5:[function(require,module,exports){
'use strict';
module.exports = function () {
var symbol;
if (typeof Symbol !== 'function') return false;
symbol = Symbol('test symbol');
try { String(symbol); } catch (e) { return false; }
if (typeof Symbol.iterator === 'symbol') return true;
// Return 'true' for polyfills
if (typeof Symbol.isConcatSpreadable !== 'object') return false;
if (typeof Symbol.iterator !== 'object') return false;
if (typeof Symbol.toPrimitive !== 'object') return false;
if (typeof Symbol.toStringTag !== 'object') return false;
if (typeof Symbol.unscopables !== 'object') return false;
return true;
};
},{}],6:[function(require,module,exports){
'use strict';
module.exports = function (x) {
return (x && ((typeof x === 'symbol') || (x['@@toStringTag'] === 'Symbol'))) || false;
};
},{}],7:[function(require,module,exports){
'use strict';
var assign = require('es5-ext/object/assign')
, normalizeOpts = require('es5-ext/object/normalize-options')
, isCallable = require('es5-ext/object/is-callable')
, contains = require('es5-ext/string/#/contains')
, d;
d = module.exports = function (dscr, value/*, options*/) {
var c, e, w, options, desc;
if ((arguments.length < 2) || (typeof dscr !== 'string')) {
options = value;
value = dscr;
dscr = null;
} else {
options = arguments[2];
}
if (dscr == null) {
c = w = true;
e = false;
} else {
c = contains.call(dscr, 'c');
e = contains.call(dscr, 'e');
w = contains.call(dscr, 'w');
}
desc = { value: value, configurable: c, enumerable: e, writable: w };
return !options ? desc : assign(normalizeOpts(options), desc);
};
d.gs = function (dscr, get, set/*, options*/) {
var c, e, options, desc;
if (typeof dscr !== 'string') {
options = set;
set = get;
get = dscr;
dscr = null;
} else {
options = arguments[3];
}
if (get == null) {
get = undefined;
} else if (!isCallable(get)) {
options = get;
get = set = undefined;
} else if (set == null) {
set = undefined;
} else if (!isCallable(set)) {
options = set;
set = undefined;
}
if (dscr == null) {
c = true;
e = false;
} else {
c = contains.call(dscr, 'c');
e = contains.call(dscr, 'e');
}
desc = { get: get, set: set, configurable: c, enumerable: e };
return !options ? desc : assign(normalizeOpts(options), desc);
};
},{"es5-ext/object/assign":8,"es5-ext/object/is-callable":11,"es5-ext/object/normalize-options":15,"es5-ext/string/#/contains":17}],8:[function(require,module,exports){
'use strict';
module.exports = require('./is-implemented')()
? Object.assign
: require('./shim');
},{"./is-implemented":9,"./shim":10}],9:[function(require,module,exports){
'use strict';
module.exports = function () {
var assign = Object.assign, obj;
if (typeof assign !== 'function') return false;
obj = { foo: 'raz' };
assign(obj, { bar: 'dwa' }, { trzy: 'trzy' });
return (obj.foo + obj.bar + obj.trzy) === 'razdwatrzy';
};
},{}],10:[function(require,module,exports){
'use strict';
var keys = require('../keys')
, value = require('../valid-value')
, max = Math.max;
module.exports = function (dest, src/*, …srcn*/) {
var error, i, l = max(arguments.length, 2), assign;
dest = Object(value(dest));
assign = function (key) {
try { dest[key] = src[key]; } catch (e) {
if (!error) error = e;
}
};
for (i = 1; i < l; ++i) {
src = arguments[i];
keys(src).forEach(assign);
}
if (error !== undefined) throw error;
return dest;
};
},{"../keys":12,"../valid-value":16}],11:[function(require,module,exports){
// Deprecated
'use strict';
module.exports = function (obj) { return typeof obj === 'function'; };
},{}],12:[function(require,module,exports){
'use strict';
module.exports = require('./is-implemented')()
? Object.keys
: require('./shim');
},{"./is-implemented":13,"./shim":14}],13:[function(require,module,exports){
'use strict';
module.exports = function () {
try {
Object.keys('primitive');
return true;
} catch (e) { return false; }
};
},{}],14:[function(require,module,exports){
'use strict';
var keys = Object.keys;
module.exports = function (object) {
return keys(object == null ? object : Object(object));
};
},{}],15:[function(require,module,exports){
'use strict';
var forEach = Array.prototype.forEach, create = Object.create;
var process = function (src, obj) {
var key;
for (key in src) obj[key] = src[key];
};
module.exports = function (options/*, …options*/) {
var result = create(null);
forEach.call(arguments, function (options) {
if (options == null) return;
process(Object(options), result);
});
return result;
};
},{}],16:[function(require,module,exports){
'use strict';
module.exports = function (value) {
if (value == null) throw new TypeError("Cannot use null or undefined");
return value;
};
},{}],17:[function(require,module,exports){
'use strict';
module.exports = require('./is-implemented')()
? String.prototype.contains
: require('./shim');
},{"./is-implemented":18,"./shim":19}],18:[function(require,module,exports){
'use strict';
var str = 'razdwatrzy';
module.exports = function () {
if (typeof str.contains !== 'function') return false;
return ((str.contains('dwa') === true) && (str.contains('foo') === false));
};
},{}],19:[function(require,module,exports){
'use strict';
var indexOf = String.prototype.indexOf;
module.exports = function (searchString/*, position*/) {
return indexOf.call(this, searchString, arguments[1]) > -1;
};
},{}],20:[function(require,module,exports){
'use strict';
var d = require('d')
, validateSymbol = require('./validate-symbol')
, create = Object.create, defineProperties = Object.defineProperties
, defineProperty = Object.defineProperty, objPrototype = Object.prototype
, Symbol, HiddenSymbol, globalSymbols = create(null);
var generateName = (function () {
var created = create(null);
return function (desc) {
var postfix = 0, name;
while (created[desc + (postfix || '')]) ++postfix;
desc += (postfix || '');
created[desc] = true;
name = '@@' + desc;
defineProperty(objPrototype, name, d.gs(null, function (value) {
defineProperty(this, name, d(value));
}));
return name;
};
}());
HiddenSymbol = function Symbol(description) {
if (this instanceof HiddenSymbol) throw new TypeError('TypeError: Symbol is not a constructor');
return Symbol(description);
};
module.exports = Symbol = function Symbol(description) {
var symbol;
if (this instanceof Symbol) throw new TypeError('TypeError: Symbol is not a constructor');
symbol = create(HiddenSymbol.prototype);
description = (description === undefined ? '' : String(description));
return defineProperties(symbol, {
__description__: d('', description),
__name__: d('', generateName(description))
});
};
defineProperties(Symbol, {
for: d(function (key) {
if (globalSymbols[key]) return globalSymbols[key];
return (globalSymbols[key] = Symbol(String(key)));
}),
keyFor: d(function (s) {
var key;
validateSymbol(s);
for (key in globalSymbols) if (globalSymbols[key] === s) return key;
}),
hasInstance: d('', Symbol('hasInstance')),
isConcatSpreadable: d('', Symbol('isConcatSpreadable')),
iterator: d('', Symbol('iterator')),
match: d('', Symbol('match')),
replace: d('', Symbol('replace')),
search: d('', Symbol('search')),
species: d('', Symbol('species')),
split: d('', Symbol('split')),
toPrimitive: d('', Symbol('toPrimitive')),
toStringTag: d('', Symbol('toStringTag')),
unscopables: d('', Symbol('unscopables'))
});
defineProperties(HiddenSymbol.prototype, {
constructor: d(Symbol),
toString: d('', function () { return this.__name__; })
});
defineProperties(Symbol.prototype, {
toString: d(function () { return 'Symbol (' + validateSymbol(this).__description__ + ')'; }),
valueOf: d(function () { return validateSymbol(this); })
});
defineProperty(Symbol.prototype, Symbol.toPrimitive, d('',
function () { return validateSymbol(this); }));
defineProperty(Symbol.prototype, Symbol.toStringTag, d('c', 'Symbol'));
defineProperty(HiddenSymbol.prototype, Symbol.toPrimitive,
d('c', Symbol.prototype[Symbol.toPrimitive]));
defineProperty(HiddenSymbol.prototype, Symbol.toStringTag,
d('c', Symbol.prototype[Symbol.toStringTag]));
},{"./validate-symbol":21,"d":7}],21:[function(require,module,exports){
'use strict';
var isSymbol = require('./is-symbol');
module.exports = function (value) {
if (!isSymbol(value)) throw new TypeError(value + " is not a symbol");
return value;
};
},{"./is-symbol":6}],22:[function(require,module,exports){
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
ctor.prototype = Object.create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
});
};
} else {
// old school shim for old browsers
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
var TempCtor = function () {}
TempCtor.prototype = superCtor.prototype
ctor.prototype = new TempCtor()
ctor.prototype.constructor = ctor
}
}
},{}],23:[function(require,module,exports){
/**
* Determine if an object is Buffer
*
* Author: Feross Aboukhadijeh <[email protected]> <http://feross.org>
* License: MIT
*
* `npm install is-buffer`
*/
module.exports = function (obj) {
return !!(
obj != null &&
obj.constructor &&
typeof obj.constructor.isBuffer === 'function' &&
obj.constructor.isBuffer(obj)
)
}
},{}],24:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
module.exports = extend;
function extend(origin, add) {
// Don't do anything if add isn't an object
if (!add || typeof add !== 'object') return origin;
var keys = Object.keys(add);
var i = keys.length;
while (i--) {
origin[keys[i]] = add[keys[i]];
}
return origin;
}
},{}],25:[function(require,module,exports){
'use strict';
// --------------------------------------------------------------------
// Imports
// --------------------------------------------------------------------
var GrammarDecl = require('./GrammarDecl');
var pexprs = require('./pexprs');
// --------------------------------------------------------------------
// Private stuff
// --------------------------------------------------------------------
function Builder() {}
Builder.prototype = {
newGrammar: function(name) {
return new GrammarDecl(name);
},
prim: function(x) {
return new pexprs.Prim(x);
},
range: function(from, to) {
return new pexprs.Range(from, to);
},
param: function(index) {
return new pexprs.Param(index);
},
alt: function(/* term1, term1, ... */) {
var terms = [];
for (var idx = 0; idx < arguments.length; idx++) {
var arg = arguments[idx];
if (arg instanceof pexprs.Alt) {
terms = terms.concat(arg.terms);
} else {
terms.push(arg);
}
}
return terms.length === 1 ? terms[0] : new pexprs.Alt(terms);
},
seq: function(/* factor1, factor2, ... */) {
var factors = [];
for (var idx = 0; idx < arguments.length; idx++) {
var arg = arguments[idx];
if (arg instanceof pexprs.Seq) {
factors = factors.concat(arg.factors);
} else {
factors.push(arg);
}
}
return factors.length === 1 ? factors[0] : new pexprs.Seq(factors);
},
star: function(expr) {
return new pexprs.Star(expr);
},
plus: function(expr) {
return new pexprs.Plus(expr);
},
opt: function(expr) {
return new pexprs.Opt(expr);
},
not: function(expr) {
return new pexprs.Not(expr);
},
la: function(expr) {
return new pexprs.Lookahead(expr);
},
lex: function(expr) {
return new pexprs.Lex(expr);
},
arr: function(expr) {
return new pexprs.Arr(expr);
},
str: function(expr) {
return new pexprs.Str(expr);
},
obj: function(properties, isLenient) {
return new pexprs.Obj(properties, !!isLenient);
},
app: function(ruleName, optParams) {
return new pexprs.Apply(ruleName, optParams);
}
};
// --------------------------------------------------------------------
// Exports
// --------------------------------------------------------------------
module.exports = Builder;
},{"./GrammarDecl":28,"./pexprs":55}],26:[function(require,module,exports){
'use strict';
// --------------------------------------------------------------------
// Private stuff
// --------------------------------------------------------------------
/*
`Failure`s represent expressions that weren't matched while parsing. They are used to generate
error messages automatically. The interface of `Failure`s includes the collowing methods:
- getText() : String
- getType() : String (one of {"description", "string", "code"})
- isDescription() : bool
- isStringTerminal() : bool
- isCode() : bool
- isFluffy() : bool
- makeFluffy() : void
- subsumes(Failure) : bool
*/
function isValidType(type) {
return type === 'description' || type === 'string' || type === 'code';
}
function Failure(text, type) {
if (!isValidType(type)) {
throw new Error('invalid Failure type: ' + type);
}
this.text = text;
this.type = type;
this.fluffy = false;
}
Failure.prototype.getText = function() {
return this.text;
};
Failure.prototype.getType = function() {
return this.type;
};
Failure.prototype.isDescription = function() {
return this.type === 'description';
};
Failure.prototype.isStringTerminal = function() {
return this.type === 'string';
};
Failure.prototype.isCode = function() {
return this.type === 'code';
};
Failure.prototype.isFluffy = function() {
return this.fluffy;
};
Failure.prototype.makeFluffy = function() {
this.fluffy = true;
};
Failure.prototype.subsumes = function(that) {
return this.getText() === that.getText() &&
this.type === that.type &&
(!this.isFluffy() || this.isFluffy() && that.isFluffy());
};
Failure.prototype.toString = function() {
return this.type === 'string' ?
JSON.stringify(this.getText()) :
this.getText();
};
// --------------------------------------------------------------------
// Exports
// --------------------------------------------------------------------
module.exports = Failure;
},{}],27:[function(require,module,exports){
'use strict';
// --------------------------------------------------------------------
// Imports
// --------------------------------------------------------------------
var InputStream = require('./InputStream');
var MatchResult = require('./MatchResult');
var Semantics = require('./Semantics');
var State = require('./State');
var common = require('./common');
var errors = require('./errors');
var pexprs = require('./pexprs');
// --------------------------------------------------------------------
// Private stuff
// --------------------------------------------------------------------
function Grammar(
name,
superGrammar,
ruleBodies,
ruleFormals,
ruleDescriptions,
optDefaultStartRule) {
this.name = name;
this.superGrammar = superGrammar;
this.ruleBodies = ruleBodies;
this.ruleFormals = ruleFormals;
this.ruleDescriptions = ruleDescriptions;
if (optDefaultStartRule) {
if (!(optDefaultStartRule in ruleBodies)) {
throw new Error("Invalid start rule: '" + optDefaultStartRule +
"' is not a rule in grammar '" + name + "'");
}
this.defaultStartRule = optDefaultStartRule;
}
this.constructors = this.ctors = this.createConstructors();
}
Grammar.prototype = {
construct: function(ruleName, children) {
var body = this.ruleBodies[ruleName];
if (!body) {
throw errors.undeclaredRule(ruleName, this.name);
}
var ans = this._constructByMatching(ruleName, children);
if (!ans) {
throw errors.invalidConstructorCall(this, ruleName, children);
}
return ans;
},
// Try to match `ctorArgs` with the body of the rule given by `ruleName`.
// Return the resulting CST node if it succeeds, otherwise return null.
_constructByMatching: function(ruleName, ctorArgs) {
// If there is a single string argument, attempt to match that directly. Otherwise,
// match against the array of arguments.
var input = ctorArgs;
if (input.length === 1 && typeof input[0] === 'string') {
input = input[0];
}
var state = new State(this, InputStream.newFor(input), ruleName, {matchNodes: true});
if (!state.eval(new pexprs.Apply(ruleName))) {
return null;
}
return state.bindings[0];
},
createConstructors: function() {
var self = this;
var constructors = {};
function makeConstructor(ruleName) {
return function(/* val1, val2, ... */) {
return self.construct(ruleName, Array.prototype.slice.call(arguments));
};
}
for (var ruleName in this.ruleBodies) {
// We want *all* properties, not just own properties, because of
// supergrammars.
constructors[ruleName] = makeConstructor(ruleName);
}
return constructors;
},
// Return true if the grammar is a built-in grammar, otherwise false.
// NOTE: This might give an unexpected result if called before BuiltInRules is defined!
isBuiltIn: function() {
return this === Grammar.ProtoBuiltInRules || this === Grammar.BuiltInRules;
},
match: function(obj, optStartRule) {
var startRule = optStartRule || this.defaultStartRule;
if (!startRule) {
throw new Error('Missing start rule argument -- the grammar has no default start rule.');
}
var state = this._match(obj, startRule, {});
return MatchResult.newFor(state);
},
_match: function(obj, startRule, opts) {
if (!(startRule in this.ruleBodies)) {
throw errors.undeclaredRule(startRule, this.name);
}
var inputStream = InputStream.newFor(typeof obj === 'string' ? obj : [obj]);
var state = new State(this, inputStream, startRule, opts);
state.eval(new pexprs.Apply(startRule));
return state;
},
trace: function(obj, optStartRule) {
var startRule = optStartRule || this.defaultStartRule;
if (!startRule) {
throw new Error('Missing start rule argument -- the grammar has no default start rule.');
}
var state = this._match(obj, startRule, {trace: true});
var rootTrace = state.trace[0];
rootTrace.state = state;
rootTrace.result = MatchResult.newFor(state);
return rootTrace;
},
semantics: function() {
return Semantics.createSemantics(this);
},
extendSemantics: function(superSemantics) {
return Semantics.createSemantics(this, superSemantics._getSemantics());
},
// Check that every key in `actionDict` corresponds to a semantic action, and that it maps to
// a function of the correct arity. If not, throw an exception.
_checkTopDownActionDict: function(what, name, actionDict) {
function isSpecialAction(a) {
return a === '_iter' || a === '_terminal' || a === '_nonterminal' || a === '_default';
}
var problems = [];
for (var k in actionDict) {
var v = actionDict[k];
if (!isSpecialAction(k) && !(k in this.ruleBodies)) {
problems.push("'" + k + "' is not a valid semantic action for '" + this.name + "'");
} else if (typeof v !== 'function') {
problems.push(
"'" + k + "' must be a function in an action dictionary for '" + this.name + "'");
} else {
var actual = v.length;
var expected = this._topDownActionArity(k);
if (actual !== expected) {
problems.push(
"Semantic action '" + k + "' has the wrong arity: " +
'expected ' + expected + ', got ' + actual);
}
}
}
if (problems.length > 0) {
var prettyProblems = problems.map(function(problem) { return '- ' + problem; });
var error = new Error(
"Found errors in the action dictionary of the '" + name + "' " + what + ':\n' +
prettyProblems.join('\n'));
error.problems = problems;
throw error;
}
},
// Return the expected arity for a semantic action named `actionName`, which
// is either a rule name or a special action name like '_nonterminal'.
_topDownActionArity: function(actionName) {
if (actionName === '_iter' || actionName === '_nonterminal' || actionName === '_default') {
return 1;
} else if (actionName === '_terminal') {
return 0;
}
return this.ruleBodies[actionName].getArity();
},
_inheritsFrom: function(grammar) {
var g = this.superGrammar;
while (g) {
if (g === grammar) {
return true;
}
g = g.superGrammar;
}
return false;
},
toRecipe: function(optVarName) {
if (this.isBuiltIn()) {
throw new Error(
'Why would anyone want to generate a recipe for the ' + this.name + ' grammar?!?!');
}
var sb = new common.StringBuffer();
if (optVarName) {
sb.append('var ' + optVarName + ' = ');
}
sb.append('(function() {\n');
// Include the supergrammar in the recipe if it's not a built-in grammar.
var superGrammarDecl = '';
if (!this.superGrammar.isBuiltIn()) {
sb.append(this.superGrammar.toRecipe('buildSuperGrammar'));
superGrammarDecl = ' .withSuperGrammar(buildSuperGrammar.call(this))\n';
}
sb.append(' return new this.newGrammar(' + JSON.stringify(this.name) + ')\n');
sb.append(superGrammarDecl);
if (this.defaultStartRule) {
sb.append(" .withDefaultStartRule('" + this.defaultStartRule + "')\n");
}
var self = this;
Object.keys(this.ruleBodies).forEach(function(ruleName) {
var body = self.ruleBodies[ruleName];
sb.append(' .');
if (self.superGrammar.ruleBodies[ruleName]) {
sb.append(body instanceof pexprs.Extend ? 'extend' : 'override');
} else {
sb.append('define');
}
var formals = self.ruleFormals[ruleName];
var formalsString = '[' + formals.map(JSON.stringify).join(', ') + ']';
sb.append('(' + JSON.stringify(ruleName) + ', ' + formalsString + ', ');
body.outputRecipe(sb, formals);
if (!self.superGrammar.ruleBodies[ruleName] && self.ruleDescriptions[ruleName]) {
sb.append(', ' + JSON.stringify(self.ruleDescriptions[ruleName]));
}
sb.append(')\n');
});
sb.append(' .build();\n});\n');
return sb.contents();
},
// TODO: Come up with better names for these methods.
// TODO: Write the analog of these methods for inherited attributes.
toOperationActionDictionaryTemplate: function() {
return this._toOperationOrAttributeActionDictionaryTemplate();
},
toAttributeActionDictionaryTemplate: function() {
return this._toOperationOrAttributeActionDictionaryTemplate();
},
_toOperationOrAttributeActionDictionaryTemplate: function() {
// TODO: add the super-grammar's templates at the right place, e.g., a case for AddExpr_plus
// should appear next to other cases of AddExpr.
var sb = new common.StringBuffer();
sb.append('{');
var first = true;
for (var ruleName in this.ruleBodies) {
var body = this.ruleBodies[ruleName];
if (first) {
first = false;
} else {
sb.append(',');
}
sb.append('\n');
sb.append(' ');
this.addSemanticActionTemplate(ruleName, body, sb);
}
sb.append('\n}');
return sb.contents();
},
addSemanticActionTemplate: function(ruleName, body, sb) {
sb.append(ruleName);
sb.append(': function(');
var arity = this._topDownActionArity(ruleName);
sb.append(common.repeat('_', arity).join(', '));
sb.append(') {\n');
sb.append(' }');
}
};
// The following grammar contains a few rules that couldn't be written in "userland".
// At the bottom of src/main.js, we create a sub-grammar of this grammar that's called
// `BuiltInRules`. That grammar contains several convenience rules, e.g., `letter` and
// `digit`, and is implicitly the super-grammar of any grammar whose super-grammar
// isn't specified.
Grammar.ProtoBuiltInRules = new Grammar(
'ProtoBuiltInRules', // name
undefined, // supergrammar
// rule bodies
{
any: pexprs.any,
end: pexprs.end,
lower: new pexprs.UnicodeChar('Ll'),
// The following rule is invoked implicitly by syntactic rules to skip spaces.
spaces: new pexprs.Star(new pexprs.Apply('space')),
// The `space` rule must be defined here because it's referenced by `spaces`.
space: new pexprs.Range('\x00', ' '),
// The union of Lt (titlecase), Lm (modifier), and Lo (other), i.e. any letter not
// in Ll or Lu.
unicodeLtmo: new pexprs.UnicodeChar('Ltmo'),
upper: new pexprs.UnicodeChar('Lu'),
Boolean: new pexprs.TypeCheck('boolean'),
Number: new pexprs.TypeCheck('number'),
String: new pexprs.TypeCheck('string')
},
// rule formal arguments
{