Skip to content
Permalink
Newer
Older
100644 2104 lines (1931 sloc) 66.8 KB
Sep 5, 2014
1
;(function($B){
2
3
var bltns = $B.InjectBuiltins()
4
eval(bltns)
Sep 5, 2014
5
Mar 23, 2018
6
if(!String.prototype.trim){
Mar 19, 2018
7
// Polyfill for older browsers
8
// The code does not use a regex to make it a bit faster.
9
// Implementation taken from a comment by Timo on the blog:
10
// http://blog.stevenlevithan.com/archives/faster-trim-javascript
11
String.prototype.trim = function () {
12
var c
13
for(var i = 0; i < this.length; i++){
14
c = this.charCodeAt(i)
15
if([32, 10, 13, 9, 12, 11, 160, 5760, 6158, 8192, 8193, 8194,
16
8195, 8196, 8197, 8198, 8199, 8200, 8201, 8202, 8232,
17
8233, 8239, 8287, 12288, 65279].indexOf(c) > -1){
18
continue
19
}else{break}
20
}
21
for(var j = this.length - 1; j >= i; j--){
22
c = this.charCodeAt(j)
Mar 23, 2018
23
if([32, 10, 13, 9, 12, 11, 160, 5760, 6158, 8192, 8193, 8194,
Mar 19, 2018
24
8195, 8196, 8197, 8198, 8199, 8200, 8201, 8202, 8232,
25
8233, 8239, 8287, 12288, 65279].indexOf(c) > -1){
26
continue
27
}else{break}
28
}
29
return this.substring(i, j + 1);
30
}
Mar 23, 2018
32
if(!String.prototype.trimLeft) {
33
// Convenience method for browsers which do not have a native trimLeft
34
// (which is a nonstandard extension in Firefox and Chrome)
Mar 19, 2018
35
String.prototype.trimLeft = function () {
36
var c
37
for(var i = 0; i < this.length; i++){
38
c = this.charCodeAt(i)
Mar 23, 2018
39
if([32, 10, 13, 9, 12, 11, 160, 5760, 6158, 8192, 8193, 8194,
Mar 19, 2018
40
8195, 8196, 8197, 8198, 8199, 8200, 8201, 8202, 8232,
41
8233, 8239, 8287, 12288, 65279].indexOf(c) > -1){
42
continue
43
}else{break}
44
}
45
return this.substring(i)
Mar 23, 2018
48
if(!String.prototype.trimRight) {
Mar 19, 2018
49
String.prototype.trimRight = function () {
50
// Convenience method for browsers which do not have a native trimRight
51
// (which is a nonstandard extension in Firefox and Chrome)
52
var c
53
for(var j = this.length - 1; j >= 0; j--){
54
c = this.charCodeAt(j)
55
if([32, 10, 13, 9, 12, 11, 160, 5760, 6158, 8192, 8193, 8194,
56
8195, 8196, 8197, 8198, 8199, 8200, 8201, 8202, 8232,
57
8233, 8239, 8287, 12288, 65279].indexOf(c) > -1){
58
continue
59
}else{break}
60
}
61
return this.substring(0, j + 1)
Sep 5, 2014
66
str
Feb 10, 2018
67
var str = {
Mar 19, 2018
68
__class__: _b_.type,
69
__dir__: object.__dir__,
70
$infos: {
71
__module__: "builtins",
72
__name__: "str"
73
},
str
Feb 10, 2018
74
$is_class: true,
Mar 19, 2018
75
$native: true
Sep 5, 2014
76
}
77
Mar 19, 2018
79
if($.start === null || $.start === _b_.None){$.start = 0}
80
else if($.start < 0){
81
$.start += $.self.length
82
$.start = Math.max(0, $.start)
83
}
84
if($.end === null || $.end === _b_.None){$.end = $.self.length}
85
else if($.end < 0){
86
$.end += $.self.length
87
$.end = Math.max(0, $.end)
88
}
Mar 19, 2018
90
if(! isinstance($.start, _b_.int) || ! isinstance($.end, _b_.int)){
91
throw _b_.TypeError.$factory("slice indices must be integers " +
92
"or None or have an __index__ method")
93
}
97
function reverse(s){
98
// Reverse a string
Mar 19, 2018
99
return s.split("").reverse().join("")
100
}
101
102
function check_str(obj){
Mar 19, 2018
103
if(! _b_.isinstance(obj, str)){
Mar 21, 2018
104
throw _b_.TypeError.$factory("can't convert '" +
105
$B.class_name(obj) + "' object to str implicitly")
Mar 19, 2018
106
}
str
Feb 10, 2018
109
str.__add__ = function(self,other){
Mar 19, 2018
110
if(!(typeof other === "string")){
111
try{return getattr(other, "__radd__")(self)}
112
catch(err){
113
throw _b_.TypeError.$factory("Can't convert " +
114
$B.class_name(other) + " to str implicitly")}
Sep 5, 2014
115
}
Mar 19, 2018
116
return self + other
Sep 5, 2014
117
}
118
Mar 19, 2018
119
str.__contains__ = function(self, item){
120
if(!(typeof item == "string")){
121
throw _b_.TypeError.$factory("'in <string>' requires " +
122
"string as left operand, not " + item.__class__)
123
}
Sep 5, 2014
124
var nbcar = item.length
Mar 19, 2018
125
if(nbcar == 0) {return true} // a string contains the empty string
126
if(self.length == 0){return nbcar == 0}
127
for(var i = 0, len = self.length; i < len; i++){
128
if(self.substr(i, nbcar) == item){return true}
Sep 5, 2014
129
}
130
return false
131
}
132
str
Feb 10, 2018
133
str.__delitem__ = function(){
134
throw _b_.TypeError.$factory("'str' object doesn't support item deletion")
Sep 5, 2014
135
}
136
Mar 19, 2018
137
// __dir__must be assigned explicitely because attribute resolution for
138
// builtin classes doesn't use __mro__
str
Feb 10, 2018
139
str.__dir__ = object.__dir__
str
Feb 10, 2018
141
str.__eq__ = function(self,other){
Mar 19, 2018
142
if(other === undefined){ // compare object "self" to class "str"
143
return self === str
Sep 5, 2014
144
}
Mar 23, 2018
145
if(_b_.isinstance(other, _b_.str)){
146
return other.valueOf() == self.valueOf()
147
}
148
return _b_.NotImplemented
Sep 5, 2014
149
}
150
151
function preformat(self, fmt){
str
Feb 10, 2018
152
if(fmt.empty){return _b_.str.$factory(self)}
Mar 19, 2018
153
if(fmt.type && fmt.type != "s"){
154
throw _b_.ValueError.$factory("Unknown format code '" + fmt.type +
155
"' for object of type 'str'")
157
return self
158
}
159
str
Feb 10, 2018
160
str.__format__ = function(self, format_spec) {
161
var fmt = new $B.parse_format_spec(format_spec)
Mar 19, 2018
162
if(fmt.sign !== undefined){
163
throw _b_.ValueError.$factory(
164
"Sign not allowed in string format specifier")
166
// For strings, alignment default to left
Mar 19, 2018
167
fmt.align = fmt.align || "<"
168
return $B.format_width(preformat(self, fmt), fmt)
Sep 5, 2014
169
}
170
str
Feb 10, 2018
171
str.__getitem__ = function(self,arg){
Mar 19, 2018
172
if(isinstance(arg, _b_.int)){
Sep 5, 2014
173
var pos = arg
Mar 19, 2018
174
if(arg < 0) {pos += self.length}
175
if(pos >= 0 && pos < self.length){return self.charAt(pos)}
176
throw _b_.IndexError.$factory("string index out of range")
177
}
178
if(isinstance(arg, slice)) {
179
var s = _b_.slice.$conv_for_seq(arg, self.length),
180
start = s.start,
181
stop = s.stop,
182
step = s.step
183
var res = "",
Mar 19, 2018
184
i = null
Mar 19, 2018
185
if(step > 0){
186
if(stop <= start){return ""}
187
for(var i = start; i < stop; i += step){res += self.charAt(i)}
Mar 23, 2018
188
}else{
Mar 19, 2018
189
if(stop >= start){return ''}
190
for(var i = start; i > stop; i += step){res += self.charAt(i)}
Sep 5, 2014
192
return res
193
}
194
if(isinstance(arg, _b_.bool)){return self.__getitem__(_b_.int.$factory(arg))}
Mar 19, 2018
195
throw _b_.TypeError.$factory("string indices must be integers")
Sep 5, 2014
196
}
197
198
var prefix = 2,
199
suffix = 3,
200
mask = (2 ** 32 - 1)
201
function fnv(p){
202
if(p.length == 0){
203
return 0
204
}
Sep 5, 2014
205
206
var x = prefix
207
x = (x ^ (p.charCodeAt(0) << 7)) & mask
208
for(var i = 0, len = p.length; i < len; i++){
209
x = ((1000003 * x) ^ p.charCodeAt(i)) & mask
210
}
211
x = (x ^ p.length) & mask
212
x = (x ^ suffix) & mask
Sep 5, 2014
213
214
if(x == -1){
215
x = -2
216
}
217
return x
218
}
220
str.__hash__ = function(self) {
221
return fnv(self)
Sep 5, 2014
222
}
223
Mar 19, 2018
224
str.__init__ = function(self, arg){
Sep 5, 2014
225
self.valueOf = function(){return arg}
226
self.toString = function(){return arg}
Sep 5, 2014
228
}
229
Mar 19, 2018
230
var $str_iterator = $B.$iterator_class("str_iterator")
str
Feb 10, 2018
231
str.__iter__ = function(self){
Mar 19, 2018
232
var items = self.split("") // list of all characters in string
233
return $B.$iterator(items, $str_iterator)
Sep 5, 2014
234
}
235
str
Feb 10, 2018
236
str.__len__ = function(self){return self.length}
Sep 5, 2014
237
238
// Start of section for legacy formatting (with %)
239
Mar 19, 2018
240
var kwarg_key = new RegExp("([^\\)]*)\\)")
241
242
var NotANumber = function() {
Mar 19, 2018
243
this.name = "NotANumber"
244
}
245
Mar 19, 2018
246
var number_check = function(s){
247
if(! isinstance(s, [_b_.int, _b_.float])){
248
throw new NotANumber()
249
}
250
}
251
Mar 19, 2018
252
var get_char_array = function(size, char){
Mar 23, 2018
253
if(size <= 0){return ""}
254
return new Array(size + 1).join(char)
255
}
256
Mar 19, 2018
257
var format_padding = function(s, flags, minus_one){
258
var padding = flags.padding
Mar 23, 2018
259
if(! padding){ // undefined
260
return s
261
}
262
s = s.toString()
263
padding = parseInt(padding, 10)
Mar 23, 2018
264
if(minus_one){ // numeric formatting where sign goes in front of padding
265
padding -= 1
266
}
Mar 19, 2018
267
if(! flags.left){
268
return get_char_array(padding - s.length, flags.pad_char) + s
Mar 19, 2018
269
}else{
270
// left adjusted
271
return s + get_char_array(padding - s.length, flags.pad_char)
272
}
273
}
274
Mar 19, 2018
275
var format_int_precision = function(val, flags){
276
var precision = flags.precision
Mar 19, 2018
277
if(!precision){
278
return val.toString()
279
}
280
precision = parseInt(precision, 10)
Mar 19, 2018
282
if(val.__class__ === $B.long_int){
283
s = $B.long_int.to_base(val, 10)
284
}else{
285
s = val.toString()
Mar 19, 2018
287
if(s[0] === "-"){
288
return "-" + get_char_array(precision - s.length + 1, "0") + s.slice(1)
Mar 19, 2018
290
return get_char_array(precision - s.length, "0") + s
291
}
292
Mar 19, 2018
293
var format_float_precision = function(val, upper, flags, modifier){
294
var precision = flags.precision
295
// val is a float
Mar 19, 2018
296
if(isFinite(val)){
297
return modifier(val, precision, flags, upper)
Mar 19, 2018
299
if(val === Infinity){
300
val = "inf"
301
}else if(val === -Infinity){
302
val = "-inf"
303
}else{
304
val = "nan"
Mar 19, 2018
306
if(upper){
307
return val.toUpperCase()
308
}
309
return val
311
}
312
Mar 19, 2018
313
var format_sign = function(val, flags){
314
if(flags.sign){
315
if(val >= 0){
316
return "+"
Sep 5, 2014
317
}
Mar 19, 2018
318
}else if (flags.space){
319
if(val >= 0){
320
return " "
321
}
322
}
323
return ""
324
}
Sep 5, 2014
325
326
var str_format = function(val, flags) {
327
// string format supports left and right padding
328
flags.pad_char = " " // even if 0 padding is defined, don't use it
str
Feb 10, 2018
329
return format_padding(str.$factory(val), flags)
Sep 5, 2014
331
332
var num_format = function(val, flags) {
333
number_check(val)
Mar 19, 2018
334
if(val.__class__ === $B.long_int){
335
val = $B.long_int.to_base(val, 10)
336
}else{
337
val = parseInt(val)
340
var s = format_int_precision(val, flags)
Mar 19, 2018
341
if(flags.pad_char === "0"){
342
if(val < 0){
343
s = s.substring(1)
Mar 19, 2018
344
return "-" + format_padding(s, flags, true)
345
}
346
var sign = format_sign(val, flags)
Mar 19, 2018
347
if(sign !== ""){
348
return sign + format_padding(s, flags, true)
349
}
350
}
352
return format_padding(format_sign(val, flags) + s, flags)
353
}
Sep 5, 2014
354
355
var repr_format = function(val, flags) {
356
flags.pad_char = " " // even if 0 padding is defined, don't use it
357
return format_padding(repr(val), flags)
358
}
Sep 5, 2014
359
360
var ascii_format = function(val, flags) {
361
flags.pad_char = " " // even if 0 padding is defined, don't use it
362
return format_padding(ascii(val), flags)
363
}
Sep 5, 2014
364
365
// converts val to float and sets precision if missing
Mar 19, 2018
366
var _float_helper = function(val, flags){
367
number_check(val)
Mar 19, 2018
368
if(! flags.precision){
369
if(! flags.decimal_point){
370
flags.precision = 6
Mar 19, 2018
371
}else{
372
flags.precision = 0
373
}
Mar 19, 2018
374
}else{
375
flags.precision = parseInt(flags.precision, 10)
376
validate_precision(flags.precision)
377
}
378
return parseFloat(val)
379
}
Sep 5, 2014
380
381
// used to capture and remove trailing zeroes
Mar 19, 2018
382
var trailing_zeros = /(.*?)(0+)([eE].*)/,
383
leading_zeros = /\.(0*)/,
384
trailing_dot = /\.$/
Sep 5, 2014
385
386
var validate_precision = function(precision) {
387
// force precision to limits of javascript
Mar 19, 2018
388
if(precision > 20){precision = 20}
389
}
390
391
// gG
Mar 19, 2018
392
var floating_point_format = function(val, upper, flags){
393
val = _float_helper(val, flags),
394
v = val.toString(),
395
v_len = v.length,
396
dot_idx = v.indexOf('.')
397
if(dot_idx < 0){dot_idx = v_len}
398
if(val < 1 && val > -1){
399
var zeros = leading_zeros.exec(v),
400
numzeros
401
if(zeros){
402
numzeros = zeros[1].length
Mar 19, 2018
403
}else{
404
numzeros = 0
405
}
Mar 19, 2018
406
if(numzeros >= 4){
407
val = format_sign(val, flags) + format_float_precision(val, upper,
408
flags, _floating_g_exp_helper)
409
if(!flags.alternate){
410
var trl = trailing_zeros.exec(val)
Mar 19, 2018
411
if(trl){
412
val = trl[1].replace(trailing_dot, "") + trl[3] // remove trailing
Mar 19, 2018
414
}else{
415
if(flags.precision <= 1){
416
val = val[0] + "." + val.substring(1)
418
}
419
return format_padding(val, flags)
420
}
421
flags.precision = (flags.precision || 0) + numzeros
Mar 19, 2018
422
return format_padding(format_sign(val, flags) +
423
format_float_precision(val, upper, flags,
424
function(val, precision) {
425
return val.toFixed(min(precision, v_len - dot_idx) +
426
numzeros)
427
}),
428
flags
429
)
430
}
431
432
if(dot_idx > flags.precision){
433
val = format_sign(val, flags) + format_float_precision(val, upper,
434
flags, _floating_g_exp_helper)
435
if(! flags.alternate){
436
var trl = trailing_zeros.exec(val)
Mar 19, 2018
437
if(trl){
438
val = trl[1].replace(trailing_dot, "") + trl[3] // remove trailing
Mar 19, 2018
440
}else{
441
if(flags.precision <= 1){
442
val = val[0] + "." + val.substring(1)
443
}
444
}
445
return format_padding(val, flags)
446
}
Mar 19, 2018
447
return format_padding(format_sign(val, flags) +
448
format_float_precision(val, upper, flags,
449
function(val, precision) {
450
if(!flags.decimal_point){
451
precision = min(v_len - 1, 6)
452
}else if (precision > v_len){
453
if(! flags.alternate){
454
precision = v_len
455
}
Sep 5, 2014
456
}
Mar 19, 2018
457
if(precision < dot_idx){
458
precision = dot_idx
459
}
460
return val.toFixed(precision - dot_idx)
461
}),
462
flags
463
)
Sep 5, 2014
465
Mar 19, 2018
466
var _floating_g_exp_helper = function(val, precision, flags, upper){
467
if(precision){--precision}
468
val = val.toExponential(precision)
469
// pad exponent to two digits
Mar 19, 2018
470
var e_idx = val.lastIndexOf("e")
471
if(e_idx > val.length - 4){
472
val = val.substring(0, e_idx + 2) + "0" + val.substring(e_idx + 2)
Mar 19, 2018
474
if(upper){return val.toUpperCase()}
475
return val
476
}
477
478
// fF
479
var floating_point_decimal_format = function(val, upper, flags) {
480
val = _float_helper(val, flags)
Mar 19, 2018
481
return format_padding(format_sign(val, flags) +
482
format_float_precision(val, upper, flags,
483
function(val, precision, flags) {
484
val = val.toFixed(precision)
485
if(precision === 0 && flags.alternate){
486
val += '.'
487
}
488
return val
489
}),
490
flags
491
)
492
}
493
494
var _floating_exp_helper = function(val, precision, flags, upper) {
495
val = val.toExponential(precision)
496
// pad exponent to two digits
Mar 19, 2018
497
var e_idx = val.lastIndexOf("e")
Mar 23, 2018
498
if(e_idx > val.length - 4){
Mar 19, 2018
499
val = val.substring(0, e_idx + 2) + "0" + val.substring(e_idx + 2)
Mar 19, 2018
501
if(upper){return val.toUpperCase()}
502
return val
503
}
504
505
// eE
Mar 19, 2018
506
var floating_point_exponential_format = function(val, upper, flags){
507
val = _float_helper(val, flags)
Mar 19, 2018
509
return format_padding(format_sign(val, flags) +
510
format_float_precision(val, upper, flags, _floating_exp_helper), flags)
511
}
512
Mar 19, 2018
513
var signed_hex_format = function(val, upper, flags){
515
number_check(val)
Mar 23, 2018
517
if(val.__class__ === $B.long_int){
Mar 19, 2018
518
ret = $B.long_int.to_base(val, 16)
519
}else{
520
ret = parseInt(val)
521
ret = ret.toString(16)
522
}
523
ret = format_int_precision(ret, flags)
Mar 19, 2018
524
if(upper){ret = ret.toUpperCase()}
Mar 23, 2018
525
if(flags.pad_char === "0"){
Mar 19, 2018
526
if(val < 0){
527
ret = ret.substring(1)
Mar 19, 2018
528
ret = "-" + format_padding(ret, flags, true)
529
}
530
var sign = format_sign(val, flags)
Mar 19, 2018
531
if(sign !== ""){
532
ret = sign + format_padding(ret, flags, true)
Sep 5, 2014
533
}
Mar 19, 2018
536
if(flags.alternate){
537
if(ret.charAt(0) === "-"){
538
if(upper){ret = "-0X" + ret.slice(1)}
539
else{ret = "-0x" + ret.slice(1)}
540
}else{
541
if(upper){ret = "0X" + ret}
542
else{ret = "0x" + ret}
543
}
544
}
545
return format_padding(format_sign(val, flags) + ret, flags)
546
}
Sep 5, 2014
547
548
var octal_format = function(val, flags) {
549
number_check(val)
Mar 19, 2018
552
if(val.__class__ === $B.long_int){
553
ret = $B.long_int.to_base(8)
554
}else{
555
ret = parseInt(val)
556
ret = ret.toString(8)
559
ret = format_int_precision(ret, flags)
Mar 19, 2018
561
if(flags.pad_char === "0"){
562
if(val < 0){
563
ret = ret.substring(1)
Mar 19, 2018
564
ret = "-" + format_padding(ret, flags, true)
565
}
566
var sign = format_sign(val, flags)
Mar 19, 2018
567
if(sign !== ""){
568
ret = sign + format_padding(ret, flags, true)
569
}
Sep 5, 2014
570
}
Mar 19, 2018
572
if(flags.alternate){
573
if(ret.charAt(0) === "-"){ret = "-0o" + ret.slice(1)}
574
else{ret = "0o" + ret}
Sep 5, 2014
575
}
576
return format_padding(ret, flags)
577
}
578
Mar 19, 2018
579
var single_char_format = function(val, flags){
580
if(isinstance(val, str) && val.length == 1) return val
581
try{
582
val = _b_.int.$factory(val) // yes, floats are valid (they are cast to int)
Mar 19, 2018
583
}catch (err){
584
throw _b_.TypeError.$factory("%c requires int or char")
585
}
586
return format_padding(chr(val), flags)
587
}
588
Mar 19, 2018
589
var num_flag = function(c, flags){
590
if(c === "0" && ! flags.padding && ! flags.decimal_point && ! flags.left){
591
flags.pad_char = "0"
592
return
593
}
Mar 19, 2018
594
if(!flags.decimal_point){
595
flags.padding = (flags.padding || "") + c
Mar 19, 2018
596
}else{
597
flags.precision = (flags.precision || "") + c
598
}
599
}
600
601
var decimal_point_flag = function(val, flags) {
Mar 23, 2018
602
if(flags.decimal_point){
603
// can only have one decimal point
604
throw new UnsupportedChar()
605
}
606
flags.decimal_point = true
607
}
608
Mar 19, 2018
609
var neg_flag = function(val, flags){
610
flags.pad_char = " " // overrides '0' flag
611
flags.left = true
612
}
613
Mar 19, 2018
614
var space_flag = function(val, flags){
615
flags.space = true
616
}
617
Mar 19, 2018
618
var sign_flag = function(val, flags){
619
flags.sign = true
620
}
621
Mar 19, 2018
622
var alternate_flag = function(val, flags){
623
flags.alternate = true
624
}
625
626
var char_mapping = {
Mar 19, 2018
627
"s": str_format,
628
"d": num_format,
629
"i": num_format,
630
"u": num_format,
631
"o": octal_format,
632
"r": repr_format,
633
"a": ascii_format,
634
"g": function(val, flags){
635
return floating_point_format(val, false, flags)
636
},
637
"G": function(val, flags){return floating_point_format(val, true, flags)},
638
"f": function(val, flags){
639
return floating_point_decimal_format(val, false, flags)
640
},
641
"F": function(val, flags){
642
return floating_point_decimal_format(val, true, flags)
643
},
644
"e": function(val, flags){
645
return floating_point_exponential_format(val, false, flags)
646
},
647
"E": function(val, flags){
648
return floating_point_exponential_format(val, true, flags)
649
},
650
"x": function(val, flags){return signed_hex_format(val, false, flags)},
651
"X": function(val, flags){return signed_hex_format(val, true, flags)},
652
"c": single_char_format,
653
"0": function(val, flags){return num_flag("0", flags)},
654
"1": function(val, flags){return num_flag("1", flags)},
655
"2": function(val, flags){return num_flag("2", flags)},
656
"3": function(val, flags){return num_flag("3", flags)},
657
"4": function(val, flags){return num_flag("4", flags)},
658
"5": function(val, flags){return num_flag("5", flags)},
659
"6": function(val, flags){return num_flag("6", flags)},
660
"7": function(val, flags){return num_flag("7", flags)},
661
"8": function(val, flags){return num_flag("8", flags)},
662
"9": function(val, flags){return num_flag("9", flags)},
663
"-": neg_flag,
664
" ": space_flag,
665
"+": sign_flag,
666
".": decimal_point_flag,
667
"#": alternate_flag
668
}
669
670
// exception thrown when an unsupported char is encountered in legacy format
Mar 19, 2018
671
var UnsupportedChar = function(){
672
this.name = "UnsupportedChar"
673
}
674
str
Feb 10, 2018
675
str.__mod__ = function(self, args) {
677
var length = self.length,
Mar 19, 2018
678
pos = 0 | 0,
679
argpos = null,
680
getitem
Mar 19, 2018
681
if(_b_.isinstance(args, _b_.tuple)){
682
argpos = 0 | 0
Mar 19, 2018
684
getitem = _b_.getattr(args, "__getitem__", _b_.None)
685
}
686
var ret = ''
687
var $get_kwarg_string = function(s) {
688
// returns [self, newpos]
689
++pos
690
var rslt = kwarg_key.exec(s.substring(newpos))
Mar 19, 2018
691
if(! rslt){
692
throw _b_.ValueError.$factory("incomplete format key")
693
}
694
var key = rslt[1]
695
newpos += rslt[0].length
Mar 23, 2018
696
try{
697
var self = getitem(key)
Mar 19, 2018
698
}catch(err){
699
if(err.name === "KeyError"){
700
throw err
701
}
702
throw _b_.TypeError.$factory("format requires a mapping")
704
return get_string_value(s, self)
705
}
706
707
var $get_arg_string = function(s) {
708
// returns [self, newpos]
709
var self
711
// non-tuple args
Mar 19, 2018
712
if(argpos === null){
713
// args is the value
Mar 19, 2018
715
}else{
716
self = args[argpos++]
Mar 19, 2018
717
if(self === undefined){
718
throw _b_.TypeError.$factory(
719
"not enough arguments for format string")
Sep 5, 2014
720
}
721
}
722
return get_string_value(s, self)
724
var get_string_value = function(s, self) {
725
// todo: get flags, type
726
// todo: string value based on flags, type, value
Mar 19, 2018
727
var flags = {"pad_char": " "}
728
do{
729
var func = char_mapping[s[newpos]]
Mar 23, 2018
730
try{
Mar 19, 2018
731
if(func === undefined){
732
throw new UnsupportedChar()
Mar 19, 2018
733
}else{
734
var ret = func(self, flags)
Mar 19, 2018
735
if(ret !== undefined){
736
return ret
737
}
738
++newpos
739
}
Mar 19, 2018
740
}catch (err){
741
if(err.name == "UnsupportedChar"){
742
invalid_char = s[newpos]
Mar 19, 2018
743
if(invalid_char === undefined){
744
throw _b_.ValueError.$factory("incomplete format")
Mar 19, 2018
746
throw _b_.ValueError.$factory(
747
"unsupported format character '" + invalid_char +
748
"' (0x" + invalid_char.charCodeAt(0).toString(16) +
749
") at index " + newpos)
750
}else if(err.name === "NotANumber"){
751
var try_char = s[newpos],
752
cls = self.__class__
753
if(!cls){
754
if(typeof(self) === "string"){
755
cls = "str"
756
}else{
757
cls = typeof(self)
Mar 19, 2018
759
}else{
Mar 19, 2018
762
throw _b_.TypeError.$factory("%" + try_char +
763
" format: a number is required, not " + cls)
764
}else{
765
throw err
766
}
Sep 5, 2014
767
}
Mar 19, 2018
768
}while (true)
Sep 5, 2014
769
}
770
var nbph = 0 // number of placeholders
Mar 19, 2018
771
do{
772
var newpos = self.indexOf("%", pos)
773
if(newpos < 0){
774
ret += self.substring(pos)
775
break
776
}
777
ret += self.substring(pos, newpos)
778
++newpos
Mar 19, 2018
779
if(newpos < length){
780
if(self[newpos] === "%"){
781
ret += "%"
782
}else{
Mar 19, 2018
784
if(self[newpos] === "("){
785
++newpos
786
ret += $get_kwarg_string(self)
Mar 23, 2018
787
}else{
788
ret += $get_arg_string(self)
789
}
790
}
Mar 19, 2018
791
}else{
792
// % at end of string
793
throw _b_.ValueError.$factory("incomplete format")
794
}
795
pos = newpos + 1
Mar 19, 2018
796
}while(pos < length)
797
798
if(argpos !== null){
799
if(args.length > argpos){
800
throw _b_.TypeError.$factory(
801
"not enough arguments for format string")
802
}else if(args.length < argpos){
803
throw _b_.TypeError.$factory(
804
"not all arguments converted during string formatting")
Mar 19, 2018
806
}else if(nbph == 0){
807
throw _b_.TypeError.$factory(
808
"not all arguments converted during string formatting")
Sep 5, 2014
812
str
Feb 10, 2018
813
str.__mro__ = [object]
Sep 5, 2014
814
str
Feb 10, 2018
815
str.__mul__ = function(){
Mar 19, 2018
816
var $ = $B.args("__mul__", 2, {self: null, other: null},
817
["self", "other"], arguments, {}, null, null)
818
if(! isinstance($.other, _b_.int)){throw _b_.TypeError.$factory(
819
"Can't multiply sequence by non-int of type '" +
Mar 19, 2018
821
var $res = ""
822
for(var i = 0; i< $.other; i++){$res += $.self.valueOf()}
Sep 5, 2014
823
return $res
824
}
825
Mar 19, 2018
826
str.__ne__ = function(self,other){return other !== self.valueOf()}
Sep 5, 2014
827
str
Feb 10, 2018
828
str.__repr__ = function(self){
830
// escape the escape char
831
res = self.replace(/\\/g, "\\\\")
832
// special cases
833
res = res.replace(new RegExp("\u0007", "g"), "\\x07").
834
replace(new RegExp("\b", "g"), "\\x08").
835
replace(new RegExp("\f", "g"), "\\x0c").
836
replace(new RegExp("\n", "g"), "\\n").
837
replace(new RegExp("\r", "g"), "\\r").
838
replace(new RegExp("\t", "g"), "\\t")
Mar 27, 2019
839
840
res = res.replace(combining_re, "\u200B$1")
Mar 19, 2018
841
if(res.search('"') == -1 && res.search("'") == -1){
842
return "'" + res + "'"
843
}else if(self.search('"') == -1){
844
return '"' + res + '"'
845
}
846
var qesc = new RegExp("'", "g") // to escape single quote
847
res = "'" + res.replace(qesc, "\\'") + "'"
Sep 5, 2014
848
return res
849
}
850
Mar 19, 2018
851
str.__setitem__ = function(self, attr, value){
852
throw _b_.TypeError.$factory(
853
"'str' object does not support item assignment")
Sep 5, 2014
854
}
Mar 27, 2019
855
var combining = []
856
for(var cp = 0x300; cp <= 0x36F; cp++){
857
combining.push(String.fromCharCode(cp))
858
}
859
var combining_re = new RegExp("(" + combining.join("|") + ")")
str
Feb 10, 2018
861
str.__str__ = function(self){
Mar 27, 2019
862
return self.replace(combining_re, "\u200B$1")
Sep 5, 2014
863
}
Mar 19, 2018
864
str.toString = function(){return "string!"}
Sep 5, 2014
865
866
// generate comparison methods
867
var $comp_func = function(self,other){
868
if(typeof other !== "string"){return _b_.NotImplemented}
Sep 5, 2014
869
return self > other
870
}
Mar 19, 2018
871
$comp_func += "" // source code
872
var $comps = {">": "gt", ">=": "ge", "<": "lt", "<=": "le"}
Sep 5, 2014
873
for(var $op in $comps){
Mar 19, 2018
874
eval("str.__" + $comps[$op] + '__ = ' + $comp_func.replace(/>/gm,$op))
Sep 5, 2014
875
}
876
877
// add "reflected" methods
str
Feb 10, 2018
878
$B.make_rmethods(str)
Sep 5, 2014
879
880
// unsupported operations
Mar 19, 2018
881
var $notimplemented = function(self, other){
882
throw NotImplementedError.$factory(
883
"OPERATOR not implemented for class str")
Sep 5, 2014
884
}
885
886
// Copy static methods from unicode
887
var from_unicode = [
888
"title",
889
"capitalize",
890
"casefold",
891
"islower",
892
"isupper",
893
"istitle",
894
"isspace",
895
"isalpha",
896
"isalnum",
897
"isdecimal",
898
"isdigit",
899
"isnumeric",
900
"isidentifier",
901
"isprintable",
902
"lower",
903
"swapcase",
904
"upper"
905
]
906
// uses the object unicode, defined in unicode.min.js
Mar 19, 2018
907
from_unicode.forEach(function(name){
str
Feb 10, 2018
908
str[name] = unicode[name]
Mar 19, 2018
909
})
Sep 5, 2014
910
Mar 19, 2018
911
str.center = function(){
912
var $ = $B.args("center", 3, {self: null, width: null, fillchar: null},
913
["self", "width", "fillchar"],
914
arguments, {fillchar:" "}, null, null),
915
self = $.self
Mar 19, 2018
917
if($.width <= self.length) {return self}
Mar 19, 2018
919
var pad = parseInt(($.width - self.length) / 2),
920
res = $.fillchar.repeat(pad)
Sep 5, 2014
921
res += self + res
Mar 19, 2018
922
if(res.length < $.width){res += $.fillchar}
Sep 5, 2014
923
return res
924
}
925
str
Feb 10, 2018
926
str.count = function(){
Mar 19, 2018
927
var $ = $B.args("count", 4, {self:null, sub:null, start:null, stop:null},
928
["self", "sub", "start", "stop"], arguments, {start:null, stop:null},
Mar 19, 2018
930
if(!(typeof $.sub == "string")){throw _b_.TypeError.$factory(
931
"Can't convert '" + $B.class_name($.sub) +
Mar 19, 2018
932
"' object to str implicitly")}
Mar 19, 2018
934
if($.start !== null){
Mar 19, 2018
936
if($.stop !== null){_slice = _b_.slice.$factory($.start, $.stop)}
937
else{_slice = _b_.slice.$factory($.start, $.self.length)}
str
Feb 10, 2018
938
substr = str.__getitem__.apply(null, [$.self].concat(_slice))
Mar 19, 2018
940
if($.self.length + $.sub.length == 0){return 1}
Mar 19, 2018
942
if($.sub.length == 0){
943
if($.start == $.self.length){return 1}
944
else if(substr.length == 0){return 0}
945
return substr.length + 1
Mar 19, 2018
947
var n = 0,
948
pos = 0
949
while(pos < substr.length){
950
pos = substr.indexOf($.sub, pos)
951
if(pos >= 0){n++; pos += $.sub.length}
952
else{break}
Sep 5, 2014
953
}
954
return n
955
}
956
957
str.encode = function(){
958
var $ = $B.args("encode", 3, {self: null, encoding: null, errors: null},
959
["self", "encoding", "errors"], arguments,
960
{encoding: "utf-8", errors: "strict"}, null, null)
961
if($.encoding == "rot13" || $.encoding == "rot_13"){
962
// Special case : returns a string
Mar 19, 2018
963
var res = ""
964
for(var i = 0, len = $.self.length; i < len ; i++){
965
var char = $.self.charAt(i)
Mar 19, 2018
966
if(("a" <= char && char <= "m") || ("A" <= char && char <= "M")){
967
res += String.fromCharCode(String.charCodeAt(char) + 13)
968
}else if(("m" < char && char <= "z") ||
969
("M" < char && char <= "Z")){
970
res += String.fromCharCode(String.charCodeAt(char) - 13)
971
}else{res += char}
972
}
973
return res
974
}
975
return _b_.bytes.__new__(_b_.bytes, $.self, $.encoding, $.errors)
Sep 5, 2014
976
}
977
str
Feb 10, 2018
978
str.endswith = function(){
979
// Return True if the string ends with the specified suffix, otherwise
980
// return False. suffix can also be a tuple of suffixes to look for.
981
// With optional start, test beginning at that position. With optional
Sep 5, 2014
982
// end, stop comparing at that position.
Mar 19, 2018
983
var $ = $B.args("endswith", 4,
984
{self:null, suffix:null, start:null, end:null},
Mar 19, 2018
985
["self", "suffix", "start", "end"],
986
arguments, {start: 0, end: null}, null, null)
Sep 20, 2015
987
988
normalize_start_end($)
989
990
var suffixes = $.suffix
Mar 19, 2018
991
if(! isinstance(suffixes,_b_.tuple)){suffixes = [suffixes]}
Mar 19, 2018
993
var s = $.self.substring($.start, $.end)
994
for(var i = 0, len = suffixes.length; i < len; i++){
995
var suffix = suffixes[i]
Mar 19, 2018
996
if(! _b_.isinstance(suffix, str)){throw _b_.TypeError.$factory(
Sep 20, 2015
997
"endswith first arg must be str or a tuple of str, not int")}
Mar 19, 2018
998
if(suffix.length <= s.length &&
999
s.substr(s.length - suffix.length) == suffix){return true}
Sep 5, 2014
1000
}
1001
return false
1002
}
1003
str
Feb 10, 2018
1004
str.expandtabs = function(self, tabsize) {
Mar 19, 2018
1005
var $ = $B.args("expandtabs", 2, {self: null, tabsize: null},
1006
["self", "tabsize"], arguments, {tabsize: 8}, null, null)
1007
var s = $B.$GetInt($.tabsize),
1008
col = 0,
1009
pos = 0,
1010
res = ""
1011
if(s == 1){return self.replace(/\t/g," ")}
1012
while(pos < self.length){
1013
var car = self.charAt(pos)
1014
switch(car){
Mar 19, 2018
1015
case "\t":
Mar 21, 2018
1016
while(col % s > 0){res += " "; col++}
Mar 19, 2018
1018
case "\r":
1019
case "\n":
1020
res += car
1021
col = 0
1022
break
1023
default:
1024
res += car
1025
col++
1026
break
1027
}
1028
pos++
1029
}
Sep 5, 2014
1032
}
1033
str
Feb 10, 2018
1034
str.find = function(){
1035
// Return the lowest index in the string where substring sub is found,
1036
// such that sub is contained in the slice s[start:end]. Optional
1037
// arguments start and end are interpreted as in slice notation.
Sep 5, 2014
1038
// Return -1 if sub is not found.
Mar 19, 2018
1039
var $ = $B.args("str.find", 4,
Mar 19, 2018
1040
{self: null, sub: null, start: null, end: null},
1041
["self", "sub", "start", "end"],
1042
arguments, {start: 0, end: null}, null, null)
1043
check_str($.sub)
Mar 19, 2018
1046
if(!isinstance($.start, _b_.int)||!isinstance($.end, _b_.int)){
1047
throw _b_.TypeError.$factory("slice indices must be " +
1048
"integers or None or have an __index__ method")}
1049
var s = $.self.substring($.start, $.end)
Mar 19, 2018
1051
if($.sub.length == 0 && $.start == $.self.length){return $.self.length}
1052
if(s.length + $.sub.length == 0){return -1}
Mar 19, 2018
1054
var last_search = s.length - $.sub.length
1055
for(var i = 0; i <= last_search; i++){
1056
if(s.substr(i, $.sub.length) == $.sub){return $.start + i}
Sep 5, 2014
1057
}
Sep 5, 2014
1059
}
1060
1061
// Next function used by method .format()
1062
1063
$B.parse_format = function(fmt_string){
Sep 5, 2014
1064
1065
// Parse a "format string", as described in the Python documentation
1066
// Return a format object. For the format string
1067
// a.x[z]!r:...
1068
// the object has attributes :
1069
// - name : "a"
1070
// - name_ext : [".x", "[z]"]
1071
// - conv : r
1072
// - spec : rest of string after :
Sep 5, 2014
1073
Mar 19, 2018
1074
var elts = fmt_string.split(":"),
1075
name,
1076
conv,
1077
spec,
Mar 19, 2018
1078
name_ext = []
Mar 19, 2018
1079
if(elts.length == 1){
1080
// No : in the string : it only contains a name
1081
name = fmt_string
1082
}else{
1083
// name is before the first ":"
1084
// spec (the format specification) is after
1085
name = elts[0]
Mar 19, 2018
1086
spec = elts.splice(1).join(":")
Mar 19, 2018
1089
var elts = name.split("!")
1090
if(elts.length > 1){
1091
name = elts[0]
1092
conv = elts[1] // conversion flag
Sep 5, 2014
1094
Mar 19, 2018
1095
if(name !== undefined){
1096
// "name' may be a subscription or attribute
1097
// Put these "extensions" in the list "name_ext"
1098
function name_repl(match){
1099
name_ext.push(match)
Mar 19, 2018
1100
return ""
1101
}
1102
var name_ext_re = /\.[_a-zA-Z][_a-zA-Z0-9]*|\[[_a-zA-Z][_a-zA-Z0-9]*\]|\[[0-9]+\]/g
1103
name = name.replace(name_ext_re, name_repl)
1104
}
Sep 5, 2014
1105
1106
return {name: name, name_ext: name_ext,
1107
conv: conv, spec: spec || "", string: fmt_string}
Sep 5, 2014
1109
1110
$B.split_format = function(self){
1111
// Parse self to detect formatting instructions
1112
// Create a list "parts" made of sections of the string :
1113
// - elements of even rank are literal text
1114
// - elements of odd rank are "format objects", built from the
1115
// format strings in self (of the form {...})
Mar 19, 2018
1116
var pos = 0,
1117
_len = self.length,
Mar 19, 2018
1119
text = "",
1120
parts = [],
1121
rank = 0
1122
while(pos < _len){
1123
car = self.charAt(pos)
Mar 21, 2018
1124
if(car == "{" && self.charAt(pos + 1) == "{"){
1125
// replace {{ by literal {
Mar 19, 2018
1126
text += "{"
1127
pos += 2
1128
}else if(car == "}" && self.charAt(pos + 1) == "}"){
1129
// replace }} by literal }
Mar 19, 2018
1130
text += "}"
1131
pos += 2
1132
}else if(car == "{"){
1133
// Start of a format string
1135
// Store current literal text
1136
parts.push(text)
1137
1138
// Search the end of the format string, ie the } closing the
1139
// opening {. Since the string can contain other pairs {} for
1140
// nested formatting, an integer nb is incremented for each { and
1141
// decremented for each } ; the end of the format string is
Mar 19, 2018
1142
// reached when nb == 0
1143
var end = pos + 1,
1144
nb = 1
1145
while(end < _len){
1146
if(self.charAt(end) == "{"){nb++; end++}
1147
else if(self.charAt(end) == "}"){
1148
nb--; end++
1149
if(nb == 0){
1150
// End of format string
Mar 19, 2018
1151
var fmt_string = self.substring(pos + 1, end - 1)
1152
1153
// Create a format object, by function parse_format
1154
var fmt_obj = $B.parse_format(fmt_string)
1155
fmt_obj.raw_name = fmt_obj.name
1156
fmt_obj.raw_spec = fmt_obj.spec
1157
1158
// If no name is explicitely provided, use the rank
1159
if(!fmt_obj.name){
Mar 19, 2018
1160
fmt_obj.name = rank + ""
Sep 5, 2014
1163
Mar 19, 2018
1164
if(fmt_obj.spec !== undefined){
1165
// "spec" may contain "nested replacement fields"
1166
// Replace empty fields by the rank in positional
1167
// arguments
1168
function replace_nested(name, key){
1169
if(key == ""){
1170
// Use implicit rank
1171
return "{" + rank++ + "}"
1175
fmt_obj.spec = fmt_obj.spec.replace(/\{(.*?)\}/g,
1176
replace_nested)
1177
}
1179
// Store format object in list "parts"
1180
parts.push(fmt_obj)
Mar 19, 2018
1181
text = ""
1182
break
1183
}
1184
}else{end++}
Sep 5, 2014
1185
}
Mar 19, 2018
1186
if(nb > 0){throw ValueError.$factory("wrong format " + self)}
Mar 19, 2018
1188
}else{text += car; pos++}
Sep 5, 2014
1189
}
1190
if(text){parts.push(text)}
1191
return parts
1192
}
1193
1194
str.format = function(self) {
1195
var $ = $B.args("format", 1, {self: null}, ["self"],
1196
arguments, {}, "$args", "$kw")
1197
1198
var parts = $B.split_format($.self)
1199
1200
// Apply formatting to the values passed to format()
Mar 19, 2018
1201
var res = "",
1202
fmt
Mar 19, 2018
1204
for(var i = 0; i < parts.length; i++){
1205
// Literal text is added unchanged
Mar 19, 2018
1206
if(typeof parts[i] == "string"){res += parts[i]; continue}
1208
// Format objects
1209
fmt = parts[i]
1210
1211
if(fmt.spec !== undefined){
1212
// "spec" may contain "nested replacement fields"
1213
// In this case, evaluate them using the positional
1214
// or keyword arguments passed to format()
1215
function replace_nested(name, key){
1216
if(/\d+/.exec(key)){
1217
// If key is numeric, search in positional
1218
// arguments
1219
return _b_.tuple.__getitem__($.$args,
1220
parseInt(key))
1221
}else{
1222
// Else try in keyword arguments
1223
return _b_.dict.__getitem__($.$kw, key)
1224
}
1225
}
1226
fmt.spec = fmt.spec.replace(/\{(.*?)\}/g,
1227
replace_nested)
1228
}
Mar 21, 2018
1229
if(fmt.name.charAt(0).search(/\d/) > -1){
1230
// Numerical reference : use positional arguments
1231
var pos = parseInt(fmt.name),
Feb 11, 2018
1232
value = _b_.tuple.__getitem__($.$args, pos)
1233
}else{
1234
// Use keyword arguments
Feb 11, 2018
1235
var value = _b_.dict.__getitem__($.$kw, fmt.name)
1236
}
1237
// If name has extensions (attributes or subscriptions)
Mar 19, 2018
1238
for(var j = 0; j < fmt.name_ext.length; j++){
1239
var ext = fmt.name_ext[j]
Mar 19, 2018
1240
if(ext.charAt(0) == "."){
1241
// Attribute
1242
value = _b_.getattr(value, ext.substr(1))
1243
}else{
1244
// Subscription
Mar 19, 2018
1245
var key = ext.substr(1, ext.length - 2)
1246
// An index made of digits is transformed into an integer
Mar 19, 2018
1247
if(key.charAt(0).search(/\d/) > -1){key = parseInt(key)}
1248
value = _b_.getattr(value, "__getitem__")(key)
Feb 12, 2018
1251
1252
// If the conversion flag is set, first call a function to convert
1253
// the value
Mar 19, 2018
1254
if(fmt.conv == "a"){value = _b_.ascii(value)}
1255
else if(fmt.conv == "r"){value = _b_.repr(value)}
1256
else if(fmt.conv == "s"){value = _b_.str.$factory(value)}
1258
// Call attribute __format__ to perform the actual formatting
1259
if(value.$is_class || value.$factory){
1260
// For classes, don't use the class __format__ method
1261
res += value.__class__.__format__(value, fmt.spec)
Mar 19, 2018
1263
res += _b_.getattr(value, "__format__")(fmt.spec)
Sep 5, 2014
1265
}
Sep 5, 2014
1267
}
1268
str
Feb 10, 2018
1269
str.format_map = function(self) {
Mar 19, 2018
1270
throw NotImplementedError.$factory(
1271
"function format_map not implemented yet")
Sep 5, 2014
1272
}
1273
str
Feb 10, 2018
1274
str.index = function(self){
Sep 5, 2014
1275
// Like find(), but raise ValueError when the substring is not found.
str
Feb 10, 2018
1276
var res = str.find.apply(null,arguments)
Mar 19, 2018
1277
if(res === -1){throw _b_.ValueError.$factory("substring not found")}
Sep 5, 2014
1278
return res
1279
}
1280
str
Feb 10, 2018
1281
str.join = function(){
Mar 19, 2018
1282
var $ = $B.args("join", 2, {self: null, iterable: null},
Mar 19, 2018
1283
["self", "iterable"], arguments, {}, null, null)
Mar 19, 2018
1285
var iterable = _b_.iter($.iterable),
Mar 19, 2018
1286
res = [],
Sep 5, 2014
1288
while(1){
1289
try{
1290
var obj2 = _b_.next(iterable)
Mar 19, 2018
1291
if(! isinstance(obj2, str)){throw _b_.TypeError.$factory(
1292
"sequence item " + count + ": expected str instance, " +
1293
$B.class_name(obj2) + " found")}
1294
res.push(obj2)
Sep 5, 2014
1295
}catch(err){
1296
if(_b_.isinstance(err, _b_.StopIteration)){
1297
break
1298
}
Sep 5, 2014
1299
else{throw err}
1300
}
1301
}
1302
return res.join($.self)
Sep 5, 2014
1303
}
1304
str
Feb 10, 2018
1305
str.ljust = function(self) {
Mar 19, 2018
1306
var $ = $B.args("ljust", 3, {self: null, width: null, fillchar:null},
1307
["self", "width", "fillchar"],
1308
arguments, {fillchar: " "}, null, null)
Mar 19, 2018
1310
if($.width <= self.length){return self}
1311
return self + $.fillchar.repeat($.width - self.length)
Sep 5, 2014
1312
}
1313
str
Feb 10, 2018
1314
str.lstrip = function(self,x){
Mar 19, 2018
1315
var $ = $B.args("lstrip", 2, {self: null, chars: null}, ["self", "chars"],
1316
arguments, {chars:_b_.None}, null, null)
1317
if($.chars === _b_.None){return $.self.trimLeft()}
1318
for(var i = 0; i < $.self.length; i++){
1319
if($.chars.indexOf($.self.charAt(i)) === -1){
1320
return $.self.substring(i)
Mar 19, 2018
1323
return ""
Sep 5, 2014
1324
}
1325
1326
// note, maketrans should be a static function.
str
Feb 10, 2018
1327
str.maketrans = function() {
Mar 19, 2018
1328
var $ = $B.args("maketrans", 3, {x: null, y: null, z: null},
1329
["x", "y", "z"], arguments, {y: null, z: null}, null, null)
Mar 19, 2018
1331
var _t = _b_.dict.$factory()
Mar 19, 2018
1333
if($.y === null && $.z === null){
1334
// If there is only one argument, it must be a dictionary mapping
1335
// Unicode ordinals (integers) or characters (strings of length 1) to
1336
// Unicode ordinals, strings (of arbitrary lengths) or None. Character
1337
// keys will then be converted to ordinals.
Mar 19, 2018
1338
if(! _b_.isinstance($.x, _b_.dict)){
1339
throw _b_.TypeError.$factory(
1340
"maketrans only argument must be a dict")
Feb 11, 2018
1342
var items = _b_.list.$factory(_b_.dict.items($.x))
Mar 19, 2018
1343
for(var i = 0, len = items.length; i < len; i++){
1344
var k = items[i][0],
1345
v = items[i][1]
1346
if(! _b_.isinstance(k, _b_.int)){
1347
if(_b_.isinstance(k, _b_.str) && k.length == 1){
1348
k = _b_.ord(k)
1349
}else{throw _b_.TypeError.$factory("dictionary key " + k +
1350
" is not int or 1-char string")}
1351
}
Mar 19, 2018
1352
if(v !== _b_.None && ! _b_.isinstance(v, [_b_.int, _b_.str])){
1353
throw _b_.TypeError.$factory("dictionary value " + v +
1354
" is not None, integer or string")
1355
}
1356
_b_.dict.$setitem(_t, k, v)
1357
}
1358
return _t
1359
}else{
1360
// If there are two arguments, they must be strings of equal length,
1361
// and in the resulting dictionary, each character in x will be mapped
1362
// to the character at the same position in y
Mar 19, 2018
1363
if(! (_b_.isinstance($.x, _b_.str) && _b_.isinstance($.y, _b_.str))){
1364
throw _b_.TypeError.$factory("maketrans arguments must be strings")
Mar 19, 2018
1365
}else if($.x.length !== $.y.length){
1366
throw _b_.TypeError.$factory(
1367
"maketrans arguments must be strings or same length")
1368
}else{
1369
var toNone = {}
Mar 19, 2018
1370
if($.z !== null){
1371
// If there is a third argument, it must be a string, whose
1372
// characters will be mapped to None in the result
Mar 19, 2018
1373
if(! _b_.isinstance($.z, _b_.str)){
1374
throw _b_.TypeError.$factory(
1375
"maketrans third argument must be a string")
Mar 19, 2018
1377
for(var i = 0, len = $.z.length; i < len; i++){
1378
toNone[_b_.ord($.z.charAt(i))] = true
1379
}
Mar 19, 2018
1381
for(var i = 0, len = $.x.length; i < len; i++){
1382
var key = _b_.ord($.x.charAt(i)),
1383
value = $.y.charAt(i)
1384
_b_.dict.$setitem(_t, key, value)
1385
}
1386
for(var k in toNone){
1387
_b_.dict.$setitem(_t, parseInt(k), _b_.None)
1388
}
1389
return _t
1390
}
1391
}
Sep 5, 2014
1392
}
1393
str
Feb 10, 2018
1394
str.partition = function() {
Mar 19, 2018
1395
var $ = $B.args("partition", 2, {self: null, sep: null}, ["self", "sep"],
1396
arguments, {}, null, null)
Mar 19, 2018
1397
if($.sep == ""){throw _b_.ValueError.$factory("empty separator")}
Mar 19, 2018
1398
check_str($.sep)
1399
var i = $.self.indexOf($.sep)
Mar 23, 2018
1400
if(i == -1){return _b_.tuple.$factory([$.self, "", ""])}
Mar 19, 2018
1401
return _b_.tuple.$factory([$.self.substring(0, i), $.sep,
1402
$.self.substring(i + $.sep.length)])
1403
}
1404
1405
function $re_escape(str){
1406
var specials = "[.*+?|()$^"
1407
for(var i = 0, len = specials.length; i < len; i++){
1408
var re = new RegExp("\\"+specials.charAt(i), "g")
1409
str = str.replace(re, "\\"+specials.charAt(i))
1410
}
1411
return str
Sep 5, 2014
1412
}
1413
str
Feb 10, 2018
1414
str.replace = function(self, old, _new, count) {
1415
// Replaces occurrences of 'old' by '_new'. Count references
1416
// the number of times to replace. In CPython, negative or undefined
1417
// values of count means replace all.
Mar 19, 2018
1418
var $ = $B.args("replace", 4,
1419
{self: null, old: null, $$new: null, count: null},
1420
["self", "old", "$$new", "count"],
1421
arguments, {count: -1}, null, null),
1422
count = $.count,
1423
self = $.self,
1424
old = $.old,
1425
_new = $.$$new
1426
// Validate type of old
1427
check_str(old)
1428
check_str(_new)
1429
// Validate instance type of 'count'
Mar 23, 2018
1430
if(! isinstance(count,[_b_.int, _b_.float])){
1431
throw _b_.TypeError.$factory("'" + $B.class_name(count) +
Mar 19, 2018
1432
"' object cannot be interpreted as an integer")
1433
}else if(isinstance(count, _b_.float)){
1434
throw _b_.TypeError.$factory("integer argument expected, got float")
1435
}
1436
if(count == 0){return self}
1437
if(count.__class__ == $B.long_int){count = parseInt(count.value)}
1438
if(old == ""){
1439
if(_new == ""){return self}
1440
if(self == ""){return _new}
1441
var elts = self.split("")
1442
if(count > -1 && elts.length >= count){
1443
var rest = elts.slice(count).join("")
1444
return _new + elts.slice(0, count).join(_new) + rest
1445
}else{return _new + elts.join(_new) + _new}
Mar 19, 2018
1447
var elts = str.split(self, old, count)
Sep 5, 2014
1448
}
Mar 19, 2018
1450
var res = self,
1451
pos = -1
1452
if(old.length == 0){
Mar 19, 2018
1454
for(var i = 0; i < elts.length; i++){
1455
res += elts[i] + _new
Mar 19, 2018
1457
return res + rest
Mar 19, 2018
1460
if(count < 0){count = res.length}
1461
while(count > 0){
1462
pos = res.indexOf(old, pos)
1463
if(pos < 0){break}
1464
res = res.substr(0, pos) + _new + res.substr(pos + old.length)
1465
pos = pos + _new.length
1466
count--
Mar 19, 2018
1468
return res
Sep 5, 2014
1469
}
1470
str
Feb 10, 2018
1471
str.rfind = function(self){
1472
// Return the highest index in the string where substring sub is found,
1473
// such that sub is contained within s[start:end]. Optional arguments
Sep 5, 2014
1474
// start and end are interpreted as in slice notation. Return -1 on failure.
Mar 19, 2018
1475
var $ = $B.args("rfind", 4,
Mar 19, 2018
1476
{self: null, sub: null, start: null, end: null},
1477
["self", "sub", "start", "end"],
1478
arguments, {start: 0, end: null}, null, null)
Sep 5, 2014
1479
1482
check_str($.sub)
Mar 19, 2018
1484
if($.sub.length == 0){
1485
if($.start > $.self.length){return -1}
1486
else{return $.self.length}
1487
}
1488
var sublen = $.sub.length
Mar 19, 2018
1490
for(var i = $.end - sublen; i >= $.start; i--){
1491
if($.self.substr(i, sublen) == $.sub){return i}
Sep 5, 2014
1494
}
1495
str
Feb 10, 2018
1496
str.rindex = function(){
Sep 5, 2014
1497
// Like rfind() but raises ValueError when the substring sub is not found
Mar 19, 2018
1498
var res = str.rfind.apply(null, arguments)
1499
if(res == -1){throw _b_.ValueError.$factory("substring not found")}
Sep 5, 2014
1500
return res
1501
}
1502
str
Feb 10, 2018
1503
str.rjust = function(self) {
Mar 19, 2018
1504
var $ = $B.args("rjust",3,
1505
{self: null, width: null, fillchar: null},
1506
["self", "width", "fillchar"],
1507
arguments, {fillchar: " "}, null, null)
Sep 5, 2014
1508
Mar 19, 2018
1509
if($.width <= self.length){return self}
Sep 5, 2014
1510
1511
return $.fillchar.repeat($.width - self.length) + self
Sep 5, 2014
1512
}
1513
str
Feb 10, 2018
1514
str.rpartition = function(self,sep) {
Mar 19, 2018
1515
var $ = $B.args("rpartition", 2, {self: null, sep: null}, ["self", "sep"],
1516
arguments, {}, null, null)
1517
check_str($.sep)
1518
var self = reverse($.self),
1519
sep = reverse($.sep)
Mar 19, 2018
1520
var items = str.partition(self, sep).reverse()
1521
for(var i = 0; i < items.length; i++){
1522
items[i] = items[i].split("").reverse().join("")
1523
}
1524
return items
Sep 5, 2014
1525
}
1526
str
Feb 10, 2018
1527
str.rsplit = function(self) {
Mar 19, 2018
1528
var $ = $B.args("rsplit", 3, {self: null, sep: null, maxsplit: null},
1529
["self", "sep", "maxsplit"], arguments,
1530
{sep: _b_.None, maxsplit: -1}, null, null),
1531
sep = $.sep
1532
1533
// Use split on the reverse of the string and of separator
1534
var rev_str = reverse($.self),
1535
rev_sep = sep === _b_.None ? sep : reverse($.sep),
str
Feb 10, 2018
1536
rev_res = str.split(rev_str, rev_sep, $.maxsplit)
1538
// Reverse the list, then each string inside the list
1539
rev_res.reverse()
Mar 19, 2018
1540
for(var i = 0; i < rev_res.length; i++){
1541
rev_res[i] = reverse(rev_res[i])
Sep 5, 2014
1544
}
1545
Mar 19, 2018
1546
str.rstrip = function(self, x){
1547
var $ = $B.args("rstrip", 2, {self: null, chars: null}, ["self", "chars"],
Mar 19, 2018
1548
arguments, {chars: _b_.None}, null, null)
1549
if($.chars === _b_.None){return $.self.trimRight()}
Mar 21, 2018
1550
for(var j = $.self.length - 1; j >= 0; j--){
Mar 19, 2018
1551
if($.chars.indexOf($.self.charAt(j)) == -1){
1552
return $.self.substring(0, j + 1)
Mar 19, 2018
1555
return ""
Sep 5, 2014
1556
}
1557
str
Feb 10, 2018
1558
str.split = function(){
Mar 19, 2018
1559
var $ = $B.args("split", 3, {self: null, sep: null, maxsplit: null},
1560
["self", "sep", "maxsplit"], arguments,
1561
{sep: _b_.None, maxsplit: -1}, null, null),
1562
sep = $.sep,
1563
maxsplit = $.maxsplit,
1564
self = $.self,
1565
pos = 0
1566
if(maxsplit.__class__ === $B.long_int){maxsplit = parseInt(maxsplit.value)}
1567
if(sep == ""){throw _b_.ValueError.$factory("empty separator")}
1568
if(sep === _b_.None){
Sep 5, 2014
1569
var res = []
Mar 19, 2018
1570
while(pos < self.length && self.charAt(pos).search(/\s/) > -1){pos++}
1571
if(pos === self.length - 1){return [self]}
1572
var name = ""
Sep 5, 2014
1573
while(1){
Mar 19, 2018
1574
if(self.charAt(pos).search(/\s/) == -1){
1575
if(name == ""){name = self.charAt(pos)}
1576
else{name += self.charAt(pos)}
Sep 5, 2014
1577
}else{
Mar 19, 2018
1578
if(name !== ""){
Sep 5, 2014
1579
res.push(name)
Mar 19, 2018
1580
if(maxsplit !== -1 && res.length == maxsplit + 1){
Sep 5, 2014
1581
res.pop()
Mar 19, 2018
1582
res.push(name + self.substr(pos))
Sep 5, 2014
1583
return res
1584
}
Mar 19, 2018
1585
name = ""
Sep 5, 2014
1586
}
1587
}
1588
pos++
Mar 19, 2018
1589
if(pos > self.length - 1){
Sep 5, 2014
1590
if(name){res.push(name)}
1591
break
1592
}
1593
}
1594
return res
1595
}else{
Mar 19, 2018
1596
var res = [],
1597
s = "",
1598
seplen = sep.length
1599
if(maxsplit == 0){return [self]}
1600
while(pos < self.length){
1601
if(self.substr(pos, seplen) == sep){
Mar 19, 2018
1604
if(maxsplit > -1 && res.length >= maxsplit){
1605
res.push(self.substr(pos))
1606
return res
1607
}
Mar 19, 2018
1608
s = ""
1609
}else{
1610
s += self.charAt(pos)
1611
pos++
Sep 5, 2014
1612
}
1613
}
Sep 5, 2014
1616
}
1617
}
1618
str
Feb 10, 2018
1619
str.splitlines = function(self){
Mar 19, 2018
1620
var $ = $B.args("splitlines", 2, {self: null, keepends: null},
Mar 19, 2018
1621
["self", "keepends"], arguments, {keepends: false}, null, null)
1622
if(! _b_.isinstance($.keepends, [_b_.bool, _b_.int])){
1623
throw _b_.TypeError.$factory("integer argument expected, got " +
1624
$B.get_class($.keepends).__name)
1625
}
1626
var keepends = _b_.int.$factory($.keepends)
1627
// Remove trailing line breaks
1628
if(keepends){
1629
var res = [],
Mar 19, 2018
1630
start = pos,
1631
pos = 0,
1632
self = $.self
1633
while(pos < self.length){
1634
if(self.substr(pos, 2) == "\r\n"){
1635
res.push(self.substring(start, pos + 2))
1636
start = pos + 2
1637
pos = start
Mar 19, 2018
1638
}else if(self.charAt(pos) == "\r" || self.charAt(pos) == "\n"){
1639
res.push(self.substring(start, pos + 1))
1640
start = pos + 1
1641
pos = start
1642
}else{pos++}
1643
}
1644
var rest = self.substr(start)
1645
if(rest){res.push(rest)}
1646
return res
1647
}else{
Mar 19, 2018
1648
var self = $.self.replace(/[\r\n]$/, "")
1649
return self.split(/\n|\r\n|\r/)
1650
}
1651
}
Sep 5, 2014
1652
str
Feb 10, 2018
1653
str.startswith = function(){
1654
// Return True if string starts with the prefix, otherwise return False.
1655
// prefix can also be a tuple of prefixes to look for. With optional
1656
// start, test string beginning at that position. With optional end,
Sep 5, 2014
1657
// stop comparing string at that position.
Mar 19, 2018
1658
var $ = $B.args("startswith", 4,
1659
{self: null, prefix: null, start: null, end: null},
1660
["self", "prefix", "start", "end"],
1661
arguments, {start: 0, end: null}, null, null)
Sep 5, 2014
1662
1663
normalize_start_end($)
1664
1665
var prefixes = $.prefix
Mar 19, 2018
1666
if(! isinstance(prefixes, _b_.tuple)){prefixes = [prefixes]}
Mar 19, 2018
1668
var s = $.self.substring($.start, $.end)
1669
for(var i = 0, len = prefixes.length; i < len; i++){
1670
var prefix = prefixes[i]
Mar 19, 2018
1671
if(! _b_.isinstance(prefix, str)){throw _b_.TypeError.$factory(
1672
"endswith first arg must be str or a tuple of str, not int")}
Mar 19, 2018
1673
if(s.substr(0, prefix.length) == prefix){return true}
Sep 5, 2014
1674
}
1675
return false
1676
Sep 5, 2014
1677
}
1678
str
Feb 10, 2018
1679
str.strip = function(){
Mar 19, 2018
1680
var $ = $B.args("strip", 2, {self: null, chars: null}, ["self", "chars"],
1681
arguments, {chars: _b_.None}, null, null)
1682
if($.chars === _b_.None){return $.self.trim()}
1683
for(var i = 0; i < $.self.length; i++){
1684
if($.chars.indexOf($.self.charAt(i)) == -1){
1685
break
Mar 19, 2018
1688
for(var j = $.self.length - 1; j >= i; j--){
1689
if($.chars.indexOf($.self.charAt(j)) == -1){
1690
break
Mar 19, 2018
1693
return $.self.substring(i, j + 1)
Sep 5, 2014
1694
}
1695
1696
str.translate = function(self, table){
Mar 19, 2018
1697
var res = [],
1698
getitem = $B.$getattr(table, "__getitem__")
1699
for(var i = 0, len = self.length; i < len; i++){
1700
try{
1701
var repl = getitem(self.charCodeAt(i))
1702
if(repl !== _b_.None){
1703
res.push(repl)
1704
}
1705
}catch(err){
1706
res.push(self.charAt(i))
1707
}
Sep 5, 2014
1708
}
Mar 19, 2018
1709
return res.join("")
Sep 5, 2014
1710
}
1711
Mar 19, 2018
1712
str.zfill = function(self, width){
Mar 19, 2018
1713
var $ = $B.args("zfill", 2, {self: null, width: null},
Mar 19, 2018
1714
["self", "width"], arguments, {}, null, null)
1715
if($.width <= self.length){return self}
Mar 19, 2018
1717
case "+":
1718
case "-":
1719
return self.charAt(0) +
1720
"0".repeat($.width - self.length) + self.substr(1)
Mar 19, 2018
1722
return "0".repeat(width - self.length) + self
Sep 5, 2014
1724
}
1725
1726
str.$factory = function(arg, encoding, errors){
Mar 19, 2018
1727
if(arg === undefined){console.log("undef"); return "<undefined>"}
1728
switch(typeof arg) {
Mar 19, 2018
1729
case "string":
Mar 27, 2019
1730
return str.__str__(arg)
Mar 19, 2018
1731
case "number":
1732
if(isFinite(arg)){return arg.toString()}
1735
if(arg.$is_class || arg.$factory){
1736
// arg is a class
1737
// In this case, str() doesn't use the attribute __str__ of the
1738
// class or its subclasses, but the attribute __str__ of the
1739
// class metaclass (usually "type") or its subclasses (usually
1740
// "object")
1741
// The metaclass is the attribute __class__ of the class dictionary
Mar 19, 2018
1742
var func = $B.$getattr(arg.__class__, "__str__")
1744
}
1745
if(arg.__class__ && arg.__class__ === _b_.bytes &&
1746
encoding !== undefined){
1747
// str(bytes, encoding, errors) is equal to
1748
// bytes.decode(encoding, errors)
1749
// Arguments may be passed as keywords (cf. issue #1060)
1750
var $ = $B.args("str", 3, {arg: null, encoding: null, errors: null},
1751
["arg", "encoding", "errors"], arguments,
1752
{encoding: "utf-8", errors: "strict"}, null, null)
1753
return _b_.bytes.decode(arg, $.encoding, $.errors)
1755
var f = $B.$getattr(arg, "__str__", null)
1756
if(f === null ||
1757
// if not better than object.__str__, try __repr__
1758
(arg.__class__ && arg.__class__ !== _b_.object &&
1759
f.$infos && f.$infos.__func__ === _b_.object.__str__)){
1760
var f = $B.$getattr(arg, "__repr__")
1761
}
Sep 5, 2014
1762
}
1763
catch(err){
1764
console.log("no __str__ for", arg)
Mar 19, 2018
1765
console.log("err ", err)
1766
if($B.debug > 1){console.log(err)}
1767
console.log("Warning - no method __str__ or __repr__, " +
1768
"default to toString", arg)
1769
return arg.toString()
Sep 5, 2014
1770
}
Sep 5, 2014
1772
}
str
Feb 10, 2018
1773
1774
str.__new__ = function(cls){
Mar 19, 2018
1775
if(cls === undefined){
1776
throw _b_.TypeError.$factory("str.__new__(): not enough arguments")
Sep 5, 2014
1777
}
Mar 19, 2018
1778
return {__class__: cls}
Sep 5, 2014
1779
}
1780
str
Feb 10, 2018
1781
$B.set_func_names(str, "builtins")
Sep 5, 2014
1783
// dictionary and factory for subclasses of string
str
Feb 10, 2018
1784
var StringSubclass = $B.StringSubclass = {
Mar 19, 2018
1785
__class__: _b_.type,
str
Feb 10, 2018
1786
__mro__: [object],
1787
$infos: {
1788
__module__: "builtins",
1789
__name__: "str"
1790
},
str
Feb 10, 2018
1791
$is_class: true
Sep 5, 2014
1792
}
1793
str
Feb 10, 2018
1794
// the methods in subclass apply the methods in str to the
Sep 5, 2014
1795
// result of instance.valueOf(), which is a Javascript string
str
Feb 10, 2018
1796
for(var $attr in str){
Mar 19, 2018
1797
if(typeof str[$attr] == "function"){
Mar 19, 2018
1798
StringSubclass[$attr] = (function(attr){
Sep 5, 2014
1799
return function(){
Mar 19, 2018
1800
var args = [],
1801
pos = 0
1802
if(arguments.length > 0){
1803
var args = [arguments[0].valueOf()],
1804
pos = 1
1805
for(var i = 1, len = arguments.length; i < len; i++){
1806
args[pos++] = arguments[i]
Sep 5, 2014
1807
}
1808
}
Mar 19, 2018
1809
return str[attr].apply(null, args)
Sep 5, 2014
1810
}
1811
})($attr)
1812
}
1813
}
str
Feb 10, 2018
1814
StringSubclass.__new__ = function(cls){
Sep 5, 2014
1817
str
Feb 10, 2018
1818
$B.set_func_names(StringSubclass, "builtins")
Sep 5, 2014
1820
_b_.str = str
1821
1822
// Function to parse the 2nd argument of format()
1823
$B.parse_format_spec = function(spec){
Mar 19, 2018
1824
if(spec == ""){this.empty = true}
1825
else{
Mar 19, 2018
1826
var pos = 0,
1827
aligns = "<>=^",
1828
digits = "0123456789",
1829
types = "bcdeEfFgGnosxX%",
1830
align_pos = aligns.indexOf(spec.charAt(0))
Mar 19, 2018
1831
if(align_pos != -1){
1832
if(spec.charAt(1) && aligns.indexOf(spec.charAt(1)) != -1){
1833
// If the second char is also an alignment specifier, the
1834
// first char is the fill value
1835
this.fill = spec.charAt(0)
1836
this.align = spec.charAt(1)
1837
pos = 2
1838
}else{
1839
// The first character defines alignment : fill defaults to ' '
Mar 19, 2018
1840
this.align = aligns[align_pos]
1841
this.fill = " "
1842
pos++
1843
}
1844
}else{
1845
align_pos = aligns.indexOf(spec.charAt(1))
Mar 19, 2018
1846
if(spec.charAt(1) && align_pos != -1){
1847
// The second character defines alignment : fill is the first one
Mar 19, 2018
1848
this.align = aligns[align_pos]
1849
this.fill = spec.charAt(0)
1850
pos = 2
1851
}
1852
}
1853
var car = spec.charAt(pos)
Mar 19, 2018
1854
if(car == "+" || car == "-" || car == " "){
1855
this.sign = car
1856
pos++
1857
car = spec.charAt(pos)
Mar 19, 2018
1859
if(car == "#"){this.alternate = true; pos++; car = spec.charAt(pos)}
1860
if(car == "0"){
Mar 19, 2018
1861
// sign-aware : equivalent to fill = 0 and align == "="
Mar 19, 2018
1862
this.fill = "0"
1863
if(align_pos == -1){
1864
this.align = "="
1865
}
Mar 19, 2018
1866
pos++
1867
car = spec.charAt(pos)
1868
}
Mar 19, 2018
1869
while(car && digits.indexOf(car) > -1){
1870
if(this.width === undefined){this.width = car}
1871
else{this.width += car}
1872
pos++
1873
car = spec.charAt(pos)
Mar 19, 2018
1875
if(this.width !== undefined){this.width = parseInt(this.width)}
1876
if(this.width === undefined && car == "{"){
1877
// Width is determined by a parameter
1878
var end_param_pos = spec.substr(pos).search("}")
1879
this.width = spec.substring(pos, end_param_pos)
1880
console.log("width", "[" + this.width + "]")
1881
pos += end_param_pos + 1
1882
}
Mar 19, 2018
1883
if(car == ","){this.comma = true; pos++; car = spec.charAt(pos)}
1884
if(car == "."){
1885
if(digits.indexOf(spec.charAt(pos + 1)) == -1){
1886
throw _b_.ValueError.$factory(
1887
"Missing precision in format spec")
Mar 19, 2018
1889
this.precision = spec.charAt(pos + 1)
1890
pos += 2
1891
car = spec.charAt(pos)
1892
while(car && digits.indexOf(car) > -1){
Mar 21, 2018
1893
this.precision += car
Mar 19, 2018
1894
pos++
1895
car = spec.charAt(pos)
1896
}
1897
this.precision = parseInt(this.precision)
1898
}
Mar 19, 2018
1899
if(car && types.indexOf(car) > -1){
1900
this.type = car
1901
pos++
1902
car = spec.charAt(pos)
1903
}
1904
if(pos !== spec.length){
1905
throw _b_.ValueError.$factory("Invalid format specifier: " + spec)
1909
this.toString = function(){
Mar 19, 2018
1910
return (this.fill === undefined ? "" : _b_.str.$factory(this.fill)) +
1911
(this.align || "") +
1912
(this.sign || "") +
1913
(this.alternate ? "#" : "") +
1914
(this.sign_aware ? "0" : "") +
1915
(this.width || "") +
1916
(this.comma ? "," : "") +
1917
(this.precision ? "." + this.precision : "") +
1918
(this.type || "")
1919
}
1920
}
1921
1922
$B.format_width = function(s, fmt){
Mar 19, 2018
1923
if(fmt.width && s.length < fmt.width){
1924
var fill = fmt.fill || " ",
1925
align = fmt.align || "<",
1926
missing = fmt.width - s.length
1927
switch(align){
Mar 19, 2018
1928
case "<":
1929
return s + fill.repeat(missing)
1930
case ">":
1931
return fill.repeat(missing) + s
1932
case "=":
1933
if("+-".indexOf(s.charAt(0)) > -1){
1934
return s.charAt(0) + fill.repeat(missing) + s.substr(1)
1935
}else{
Mar 19, 2018
1936
return fill.repeat(missing) + s
Mar 19, 2018
1938
case "^":
1939
var left = parseInt(missing / 2)
1940
return fill.repeat(left) + s + fill.repeat(missing - left)
1941
}
1942
}
1943
return s
1944
}
1945
1946
function fstring_expression(){
Mar 19, 2018
1947
this.type = "expression"
1948
this.expression = ""
1949
this.conversion = null
1950
this.fmt = null
1951
}
1952
1953
$B.parse_fstring = function(string){
1954
// Parse a f-string
1955
var elts = [],
1956
pos = 0,
Mar 19, 2018
1957
current = "",
1958
ctype = null,
1959
nb_braces = 0,
1960
car
1961
Mar 19, 2018
1962
while(pos < string.length){
1963
if(ctype === null){
1964
car = string.charAt(pos)
Mar 19, 2018
1965
if(car == "{"){
Mar 21, 2018
1966
if(string.charAt(pos + 1) == "{"){
Mar 19, 2018
1967
ctype = "string"
1968
current = "{"
1969
pos += 2
1970
}else{
Mar 19, 2018
1971
ctype = "expression"
1972
nb_braces = 1
1973
pos++
1974
}
Mar 19, 2018
1975
}else if(car == "}"){
Mar 21, 2018
1976
if(string.charAt(pos + 1) == car){
Mar 19, 2018
1977
ctype = "string"
1978
current = "}"
1979
pos += 2
1980
}else{
1981
throw Error(" f-string: single '}' is not allowed")
1982
}
1983
}else{
Mar 19, 2018
1984
ctype = "string"
1985
current = car
1986
pos++
Mar 19, 2018
1988
}else if(ctype == "string"){
1989
// end of string is the first single { or end of string
Mar 19, 2018
1990
var i = pos
1991
while(i < string.length){
1992
car = string.charAt(i)
Mar 19, 2018
1993
if(car == "{"){
Mar 21, 2018
1994
if(string.charAt(i + 1) == "{"){
Mar 19, 2018
1995
current += "{"
1996
i += 2
1997
}else{
1998
elts.push(current)
Mar 19, 2018
1999
ctype = "expression"
2000
pos = i + 1
2001
break
2002
}
Mar 19, 2018
2003
}else if(car == "}"){
2004
if(string.charAt(i + 1) == car){
2005
current += car
2006
i += 2
2007
}else{
2008
throw Error(" f-string: single '}' is not allowed")
2009
}
2010
}else{
2011
current += car
2012
i++
2013
}
2014
}
Mar 19, 2018
2015
pos = i + 1
2016
}else{
2017
// End of expression is the } matching the opening {
2018
// There may be nested braces
2019
var i = pos,
2020
nb_braces = 1,
2021
nb_paren = 0,
2022
current = new fstring_expression()
Mar 19, 2018
2023
while(i < string.length){
2024
car = string.charAt(i)
Mar 19, 2018
2025
if(car == "{" && nb_paren == 0){
2026
nb_braces++
2027
current.expression += car
2028
i++
Mar 19, 2018
2029
}else if(car == "}" && nb_paren == 0){
2030
nb_braces -= 1
Mar 19, 2018
2031
if(nb_braces == 0){
2032
// end of expression
2033
elts.push(current)
2034
ctype = null
Mar 19, 2018
2035
current = ""
2036
pos = i + 1
2039
current.expression += car
2040
i++
Mar 19, 2018
2041
}else if(car == "\\"){
2042
// backslash is not allowed in expressions
2043
throw Error("f-string expression part cannot include a" +
2044
" backslash")
Mar 19, 2018
2045
}else if(nb_paren == 0 && car == "!" && current.fmt === null &&
Mar 21, 2018
2046
":}".indexOf(string.charAt(i + 2)) > -1){
Mar 19, 2018
2047
if(current.expression.length == 0){
2048
throw Error("f-string: empty expression not allowed")
2049
}
Mar 19, 2018
2050
if("ars".indexOf(string.charAt(i + 1)) == -1){
2051
throw Error("f-string: invalid conversion character:" +
2052
" expected 's', 'r', or 'a'")
2053
}else{
Mar 19, 2018
2054
current.conversion = string.charAt(i + 1)
2055
i += 2
2056
}
Mar 19, 2018
2057
}else if(car == "("){
2058
nb_paren++
2059
current.expression += car
2060
i++
Mar 19, 2018
2061
}else if(car == ")"){
2062
nb_paren--
2063
current.expression += car
2064
i++
Mar 19, 2018
2065
}else if(car == '"'){
2066
// triple string ?
Mar 19, 2018
2067
if(string.substr(i, 3) == '"""'){
2068
var end = string.indexOf('"""', i + 3)
2069
if(end == -1){
2070
throw Error("f-string: unterminated string")
2071
}else{
2072
var trs = string.substring(i, end + 3)
2073
trs = trs.replace("\n", "\\n\\")
2074
current.expression += trs
Mar 19, 2018
2075
i = end + 3
2076
}
2077
}else{
Mar 19, 2018
2078
var end = string.indexOf('"', i + 1)
2079
if(end == -1){
2080
throw Error("f-string: unterminated string")
2081
}else{
2082
current.expression += string.substring(i, end + 1)
2083
i = end + 1
2084
}
2085
}
Mar 19, 2018
2086
}else if(nb_paren == 0 && car == ":"){
2087
current.fmt = true
2088
current.expression += car
2089
i++
2090
}else{
2091
current.expression += car
2092
i++
2093
}
2094
}
Mar 21, 2018
2095
if(nb_braces > 0){
2096
throw Error("f-string: expected '}'")
2097
}
2098
}
2099
}
Mar 19, 2018
2100
if(current.length > 0){elts.push(current)}
2101
return elts
2102
}
2103
Sep 5, 2014
2104
})(__BRYTHON__)