-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathpeg.html
More file actions
705 lines (606 loc) · 17.4 KB
/
peg.html
File metadata and controls
705 lines (606 loc) · 17.4 KB
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
<html>
<body>
<script src = './devserver.js'></script>
<script>
function run(){
var LOG = 0
// GRAMMAR
var defGrammar = {
Start :o=>o.zeroOrMore(o=>o.ws && o.do('\n')) && o.zeroOrMore(o=>o.Attribute || o.Statement || o.CommentLine),
IdChain :o=>o.fold(o=>o.NotKeyword && o.Id && o.zeroOrMore(o=>o.do('.') && o.Id)),
PrefId :o=>o.empty(o=>o.zeroOrOne(o=>o.do('!')||o.do('-')||o.do('+')) && o.ws && o.IdChain, 1),
Number :o=>(o.zeroOrOne(o=>o.do('-')) && o.oneOrMore(o=>o.do('0', '9')) && o.zeroOrOne(o=>o.do('.') && o.oneOrMore(o=>o.do('0', '9')))),
Boolean :o=>o.do('true') || o.do('false'),
ElseLine :o=>o.do('else:') && o.ws && o.BlockExpression,
DoLine :o=>o.do('do:') && o.ws && o.BlockExpression,
DoBlock :o=>o.do('do') && o.ws && o.eat('\n') && o.zeroOrMore(o=>o.ws && o.do('\n')) && o.Statements && o.ws && o.do('end'),
Statements :o=>o.zeroOrMore(o=>o.not(o=>o.eat('end') || o.eat('else')) && o.zeroOrMore(o=>o.ws && o.do('\n')) && (o.Statement || o.CommentLine)),
Comment :o=>o.do('#') && o.zeroOrMore(o=>o.inv('\n')),
CommentLine :o=>o.ws && o.eat('\n') || o.do('#') && o.zeroOrMore(o=>o.inv('\n')) && o.eat('\n'),
Arrow :o=>o.ws && o.Expression && o.ws && o.do('->') && o.zeroOrMore(o=>o.ws && o.do('\n') && o.ws) && (o.BlockExpression),
BlockExpression :o=>o.ws && (o.CallNoParen || o.Expression),
Statement :o=>o.ws && o.group(o=>o.CallNoParen || o.Arrow || o.Expression || o.Comment) && o.zeroOrMore(o=>o.ws && o.Comment) && o.ws && o.eat('\n'),
Attribute :o=>o.do('@') && o.Id && o.rws && o.Expression && o.oneOrMore(o=>o.ws && o.eat('\n')),
Expression :o=>o.Assign || o.Logic || o.Math || o.ExprItem,
ExprItem :o=>o.fold(o=>o.CallParen || o.If || o.List || o.Map || o.String || o.Atom || o.AttribRef || o.Number|| o.Boolean || o.PrefId),
List :o=>o.do('[') && o.ws && o.zeroOrOne(o=>o.Expression) && o.zeroOrMore(o=>o.ws && o.do(',') && o.ws && o.Expression) && o.ws && o.do(']'),
IdElem :o=>o.Id && o.do(':') && o.ws && o.Expression,
ExprElem :o=>o.Expression && o.ws && o.do('=>') && o.ws && o.Expression,
Map :o=>o.do('%{') && o.ws && o.zeroOrOne(o=>o.IdElem || o.ExprElem) && o.zeroOrMore(o=>o.ws && o.do(',') && o.ws && (o.IdElem || o.ExprElem)) && o.ws && o.do('}'),
Label :o=>o.NotKeyword && o.Id && o.do(':'),
Atom :o=>o.do(':') && o.Id,
AttribRef :o=>o.do('@') && o.Id,
ParenArg :o=>o.NotKeyword && o.zeroOrOne(o=>o.Label && o.ws) && (o.Expression || o.DoLine),
CallParen :o=>o.IdChain && o.ws && o.do('(') && o.ws && o.zeroOrOne(o=>o.ParenArg) && o.zeroOrMore(o=>o.ws && o.do(',') && o.ws && o.ParenArg) && o.ws && o.do(')') && o.zeroOrOne(o=>o.ws && (o.DoLine || o.DoBlock )),
NoParenArg :o=>o.zeroOrOne(o=>o.Label && o.ws) && (o.Expression || o.DoLine || o.DoBlock),
CallNoParen :o=>o.IdChain && o.rws && o.NoParenArg && o.zeroOrMore(o=>( o.group(o=>o.ws && o.do(',') && o.ws)) && o.NoParenArg) && o.zeroOrOne(o=>o.ws && o.DoBlock ),
ElseBlock: o=>o.do('do') && o.ws && o.eat('\n') &&
o.Statements &&
o.ws && o.do('else') && o.ws && o.eat('\n') &&
o.Statements &&
o.ws && o.do('end'),
If: o=>o.do('if') && o.rws && o.Expression && (o.group(o=>o.do(',') && o.ws && o.DoLine && o.zeroOrOne(o=>o.ws && o.do(',') && o.ws && o.ElseLine))) || (o.rws && (o.ElseBlock || o.DoBlock)),
Assign :o=>o.NotKeyword && o.IdChain && o.ws && o.group(o=>o.do('+=')||o.do('-=')||o.do('/=')||o.do('*=')||o.do('=')) && o.ws && o.BlockExpression,
Logic :o=>o.foldTwo(o=>o.Or),
Or :o=>o.fold(o=>o.And && o.zeroOrMore(o=>o.ws && o.do('||') && o.ws && o.And)),
And :o=>o.fold(o=>o.Cmp && o.zeroOrMore(o=>o.ws && o.do('&&') && o.ws && o.Cmp)),
Cmp :o=>o.fold(o=>o.LogicS && o.zeroOrOne(o=>o.ws && (o.do('<=') || o.do('<') || o.do('>=') || o.do('>') || o.do('!=') || o.do('==')) && o.ws && o.LogicS)),
LogicS :o=>o.fold(o=>o.ExprItem || o.do('(') && o.ws && o.Expression && o.ws && o.do(')')),
Math :o=>o.foldTwo(o=>o.Sum),
Sum :o=>o.fold(o=>o.Prod && o.zeroOrMore(o=>o.ws && (o.do('+') || o.do('-')) && o.ws && o.Prod)),
Prod :o=>o.fold(o=>o.MathS && o.zeroOrMore(o=>o.ws && (o.do('*') || o.do('/')) && o.ws && o.MathS)),
MathS :o=>o.fold(o=>o.ExprItem || o.do('(') && o.ws && o.Expression && o.ws && o.do(')')),
// optimized out:
//Id :o=>o.not(o=>o.do('do') || o.do('end') || o.do('if')) && (o.do('a', 'z') || o.do('A', 'Z') || o.do('_')) && o.zeroOrMore(o=>o.do('a', 'z') || o.do('A', 'Z') || o.do('0', '9') || o.do('_')),
//String :o=>o.do('"') && o.zeroOrMore(o=>o.inv('"')) && o.do('"'),
// optimized getters
_ws :function() {
var o = this
var input = o.input
while(o.pos < input.length){
var ch = input.charCodeAt(o.pos)
if(ch !== 32 && ch !== 9) break
o.pos++
}
return true
},
_rws :function() {
var o = this
var input = o.input
var pos = o.pos
while(o.pos < input.length){
var ch = input.charCodeAt(o.pos)
if(ch !== 32 && ch !== 9) break
o.pos++
}
return pos !== o.pos
},
_NotKeyword : function(){
var o = this
var input = o.input
var pos = o.pos
var c1 = input.charCodeAt(o.pos)
var c2 = input.charCodeAt(o.pos+1)
var c3 = input.charCodeAt(o.pos+2)
var c4 = input.charCodeAt(o.pos+3)
var c5 = input.charCodeAt(o.pos+4)
if(c1 == 100 && c2 == 111) return false // do
if(c1 == 105 && c2 == 102) return false //if
if(c1 == 101 && c2 == 110 && c3 == 100) return false // end
if(c1 == 101 && c2 == 108 && c3 == 115 && c4 == 101) return false // else
//if(c1 == 101 && c2 == 108 && c3 == 115 && c4 == 101) return false // catch
//if(c1 == 101 && c2 == 108 && c3 == 115 && c4 == 101) return false // rescue
//if(c1 == 101 && c2 == 110 && c3 == 100) return false // true
//if(c1 == 101 && c2 == 110 && c3 == 100) return false // false
return true
},
_Id :function() {
var o = this
var input = o.input
var pos = o.pos
var c1 = input.charCodeAt(o.pos)
if(c1 >= 65 && c1 <=90 || c1 >= 97 && c1 <= 122 || c1 == 95){
while(o.pos < input.length){
c1 = input.charCodeAt(++o.pos)
if(!(c1 >=48 && c1 <= 57 || c1 >= 65 && c1 <=90 || c1 >= 97 && c1 <= 122 || c1 == 95)){
// make a node and add it.
if(!o.ast.n) o.ast.n = []
o.ast.n.push({
type:'Id',
value:input.slice(pos, o.pos),
start:pos+ o.delta, end:o.pos+ o.delta
})
if(LOG) _='Id:[' + input.slice(pos, o.pos) + ']' + input.slice(o.pos + 1)
break
}
}
}
return pos !== o.pos
},
_String :function() {
var o = this
var input = o.input
var pos = o.pos
var ch = input.charCodeAt(o.pos)
var ast = {type:'String', start:pos + o.delta}
var last = pos+1
if(ch == 34){
while(o.pos < input.length){
ch = input.charCodeAt(++o.pos)
if(ch === 35 && input.charCodeAt(o.pos+1) === 123){ // interpolate strings
// lets find the end
for(var j = o.pos+2; j < input.length; j++){
if(input.charCodeAt(j) === 125){
break
}
}
var subparser = new this.constructor(input.slice(o.pos+2, j), 'Expression', o.pos+2)
if(!ast.n) ast.n = []
// push last string
if(last !== o.pos) ast.n.push({
type:'String',
value: input.slice(last, o.pos)
})
ast.n.push(subparser.ast.n[0])
last = j+1
//var subparser = Object.create(this)
//subparser.parse()
//this.parse()
//var oldast = this.ast
//var memoize =
//this.input =
//this.pos = 0
// parse the string interp
//this.Start
}
if(ch === 34){
if(o.pos !== last && last !== pos+1){
if(last !== o.pos) ast.n.push({
type:'String',
value: input.slice(last, o.pos)
})
}
o.pos++
if(!o.ast.n) o.ast.n = []
ast.value = input.slice(pos, o.pos)
o.ast.n.push(ast)
if(LOG) _='String:[' + input.slice(pos, o.pos) + ']' + input.slice(o.pos + 1)
return true
}
}
}
return false
}
}
// Input form
var inputSource = document.getElementById('file').childNodes[1].nodeValue
function makeParser(rules) {
function Parser(input, name = 'Start', delta = 0){
this.memoize = {}
this.input = input
this.pos = 0
this.delta = delta
this.last = 0
var ast = this.ast = {n:[]}
this.fail = []
this.stack = []
this[name]
}
var proto = Parser.prototype
proto.do = function(a, b, eat, inv) {
var o = this
var input = o.input
if(o.pos > input.length) return false
if(typeof b === 'string') { // range
var c = input.charCodeAt(o.pos)
var cin = c >= a.charCodeAt(0) && c <= b.charCodeAt(0)
if(inv && !cin || !inv && cin) {
if(!eat) o.ast.value += input.charAt(o.pos)
if(LOG) _='[' + input.charAt(o.pos) + ']' + input.slice(o.pos + 1)
o.pos++
return true
}
if(LOG) _='!' + input.charAt(o.pos) + '!' + input.slice(o.pos + 1)
return false
}
var s = ''
for(var i = 0, pos = o.pos;i < a.length;i++,pos++){ // string match
s += input.charAt(pos)
var cin = input.charCodeAt(pos) !== a.charCodeAt(i)
if(inv && !cin || !inv && cin) {
if(LOG) _='!' + s + '!' + '('+a+')'+input.slice(o.pos + s.length)
return false
}
}
if(LOG) _='[' + s + ']' + input.slice(o.pos + s.length)
if(!eat) o.ast.value += s
if(pos > o.last) o.last = pos
o.pos = pos
return true
}
proto.__defineSetter__('trace', function(value){
console.log('TRACE',value)
//debugger
})
proto.eat = function(a, b) {
return this.do(a, b, true)
}
proto.inv = function(a, b) {
return this.do(a, b, false, true)
}
proto.fold = function(fn) {
var o = this
if(fn(o)) {
if(o.ast.n.length < 2) return 0
return true
}
return false
}
proto.foldTwo = function(fn) {
var o = this
if(fn(o)) {
var len = o.ast.n.length
if(len < 2){
if(len === 1){
var n2 = o.ast.n[0].n
if(!n2 || n2.length < 2) return false
}
return 0
}
return true
}
return false
}
proto.empty = function(fn) {
var o = this
if(fn(o)) {
if(o.ast.value.length == 0) return 0
return true
}
return false
}
proto.zeroOrMore = function(fn) { //zero or more
var o = this
while(1){
var pos = o.pos
if(!fn(o)){
o.pos = pos
break
}
}
return true
}
proto.oneOrMore = function(fn) { //one or more
var o = this
var c = 0
while(1){
var pos = o.pos
if(!fn(o)){
o.pos = pos
break
}
c++
}
return c !== 0
}
proto.zeroOrOne = function(fn) { //one or more
var o = this
var pos = o.pos
if(!fn(o)){
o.pos = pos
}
return true
}
proto.not = function(fn, b) {
var o = this
var pos = o.pos, ret = fn(o)
o.pos = pos
return !ret
}
proto.and = function(fn, b) {
var pos = o.pos, ret = fn(o)
o.pos = pos
return ret
}
proto.group = function(fn) {
var o = this
var pos = o.pos, ret = fn(o)
if(!ret) o.pos = pos
return ret
}
function makeGetter(key){
return function getter() {
var o = this
var pos = o.pos
var rule = rules[key]
var parent = o.ast
// lets check our memoize fn
// if we do the same item at the same spot, return it
o.stack.push(key)
var memo = o.memoize[pos+ this.delta]
var mine = memo && memo[key]
var ret
if(!mine){
mine = o.ast = {type:key, value:'', start:pos+ this.delta}
//if(debug) console.log('No memo', o.input.slice(o.pos, o.pos + 50).replace(/\n/g,'\\n'))
ret = rule(o)
}
else{
//if(debug) console.log('Memo', key)
o.pos = mine.end
ret = true
}
o.ast = parent
if(ret === true) {
var memo = o.memoize[mine.start] || (o.memoize[mine.start] = {})
memo[key] = mine
mine.end = o.pos
if(!parent.n) parent.n = []
parent.n.push(mine)
parent[key] = mine
o.stack.pop()
return true
}
else if(ret === 0) {
var sub = mine.n[0]
if(sub){
if(!parent.n) parent.n = []
parent.n.push(mine.n[0])
}
o.stack.pop()
return true
}
o.fail.push(o.stack.join('/'))
o.stack.pop()
o.pos = pos
return false
}
}
for(var key in rules){
if(key.charAt(0) === '_'){
proto.__defineGetter__(key.slice(1), rules[key])
}
else{
proto.__defineGetter__(key, makeGetter(key))
}
}
return Parser
}
Error.stackTraceLimit=150
window.__defineSetter__('_', function(arg){
var stack = new Error().stack || ''
// lets collect the stack
var st = stack.split('\n')
var str = ''
for(var i = 0; i < st.length; i++){
var m = st[i].match(/at (\w+)/)
if(m){
if(defGrammar[m[1]]){
str = m[1] + '>' + str
}
}
}
console.log(str + ': '+arg.replace(/\n/g, '\\n'))
})
var Parser = makeParser(defGrammar)
var dt = Date.now()
var bench = false
if(bench){
var dt = Date.now()
for(var i = 0; i <100; i++){
var parser = new Parser(inputSource)
}
console.log("Performance per parse: "+((Date.now()-dt)/100)+"ms")
}
var parser = new Parser(inputSource)
var ast = parser.ast
/*
var serializeAST = {
indentChar:' ',
indent:'',
'Name': function(node){
return node.value
},
'String': function(node){
return node.value
},
'Say': function(node){
var ret = 'say'
var n = node.n
for(var i = 0; i < n.length; i++){
var arg = n[i]
ret += ' ' + this[arg.type](arg)
}
return ret
},
'Statement' : function(node){
var arg = node.n[0]
return this[arg.type](arg)
},
'Block': function(node){
var indent = this.indent
this.indent += this.indentChar
var ret ='do\n'
var n = node.n
for(var i = 0; i < n.length; i++){
var stmt = n[i]
ret += this.indent + this[stmt.type](stmt) + '\n'
}
this.indent = indent
ret += indent + 'end\n'
return ret
},
'Dialog':function(node){
return 'Dialog ' + this.Name(node.Name) + ' ' + this.Block(node.Block)
}
}*/
var out = ''
function dumpAst(node, d){
out += '<span>'+Array(d).join('   ') + node.type + ':' + node.value+'</span><br/>'
if(node.n) for(let i = 0;i < node.n.length;i++){
dumpAst(node.n[i], d + 1)
}
}
out += '<span>---- AST -----</span><br/>'
dumpAst(ast, 0)
document.body.innerHTML = out
// lets modify the name of the dialog:
//ast.Dialog.Name.value = 'myDialog'
/*
document.body.innerHTML += '<span>----- Reserialized -----<br/>'+ serializeAST.Dialog(ast.Dialog).replace(/\n/g,'<br/>').replace(/ /g,' ')+'</span>'
*/
}
document.addEventListener('DOMContentLoaded', run)
</script>
<div id='file2'>
<!--
-->
</div>
<div id='file'>
<!--
"hi#{test.test1}ho"
%{map:key, map=>key}
if x, do: say "hi", else: "ho"
import "main"
import "helpers"
# Settings
@delay 1
@typing_indicator 1
# Common Entities
@yes learn(input: "yes|yep|sure", label: "Yes", return: :yes)
@no learn(input: "no|nope|nah", label: "No", return: :no)
# Common Dialogs
dialog main do
location = ask "Please share your location", expecting: :location
think 1.5
laugh = ask "Did you laugh?", quick_replies: ["Yes", "No"], help_dialog: oops
sleep 2 * 2
image "https://www.domain.com/image.jpg"
location [4.893414, 52.364909]
end
dialog button do
buttons "What do you want to do next?" do
"Open CNN" ->
open "http://cnn.com"
"Postback hi" ->
postback "hi"
end
end
# special for of blocks with only one statement. shows that blocks are just last parameter to functions in Elixir
dialog shortblock, do: say "hello"
dialog express do
foo = 1
remember foo
forget foo
end
dialog logic do
say "Let try out some logical thinking"
say "156 + 234 ="
say 156 + 234
say "12 > 2 ?"
say 12 > 2
a = 1
b = "1"
c = 1.0
d = "one"
if a == b do
say "1 is '1'"
else
say "1 is not '1'"
end
if a == c do
say "1 is 1.0"
else
say "1 is not 1.0"
end
if a != d do
say "1 is not one"
else
say "1 is one"
end
if a == c || a == d do
say "Either 1 is 1.0 OR 1 is one"
end
if a == c && a == d do
say "1 is 1.0 AND 1 is one"
else
say "Nope (1 is 1.0) AND (1 is one) are not both true"
end
# you can nest if else blocks for more fine grained "thinking"
if a == c do
say "1 is 1.0"
if a == d do
say "1 is one"
else
say "but 1 is not one"
end
else
say "but 1 is not 1.0"
end
say "finished"
end
dialog trigger: "stop|quit|end|finish" do
say "Ok I'll shut up now. Activate me again by saying 'hi'."
stop = true
end
dialog trigger: "hi|hey" do
say "Hi there"
stop = false
end
dialog trigger: "restart|again" do
restart = ask "Do you want to restart from the beginning?", expecting: [@yes, @no]
if restart == :yes do
invoke main
end
end
dialog trigger: "help" do
say "Some common interactions are:"
say "'stop' to stop, 'hi' to reactivate, 'restart' to start again"
end
dialog trigger: "French|Dutch|German" do
say "Sorry I only speak English"
end
# Validation
@postcode learn(input: "^\d{5}(?:[-\s]\d{4})?$")
dialog validate_postcode do
say "Sorry, that doesn't look like a postcode. Should be something like 10001"
end
# Built in special cases
dialog __returning__ do
random do
say "Where were we..."
say "Back the to subject..."
say "Shall we..."
say "Ok..."
say "So..."
end
end
dialog __unknown_location__ do
say "Thanks for your location. Will keep it in mind next time I visit."
end
dialog __unknown__ do
random do
say "Sorry I don't understand"
say "Sorry I am just a chatbot"
end
say "Type 'help' to get help on my capabilities "
end
@thumb_up 369239263222822
dialog(attachment: :image) do
if attachment.metadata.sticker_id do
if attachment.metadata.sticker_id == @thumb_up do
say "👍"
else
say "Cool sticker!"
end
else
say "Thanks for the photo!"
end
end
dialog __timeout__ do
emit "bye bye #{user.user_id}" # emits to a backchannel
end
-->
</div>
</body>
</html>