Module: Mail::Parsers::ContentTransferEncodingParser

Extended by:
Mail::ParserTools
Defined in:
lib/mail/parsers/content_transfer_encoding_parser.rb

Defined Under Namespace

Classes: ContentTransferEncodingStruct

Class Attribute Summary collapse

Class Method Summary collapse

Methods included from Mail::ParserTools

chars

Class Attribute Details

._eof_actionsObject

Returns the value of attribute _eof_actions


301
302
303
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 301

def _eof_actions
  @_eof_actions
end

._index_offsetsObject

Returns the value of attribute _index_offsets


42
43
44
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 42

def _index_offsets
  @_index_offsets
end

._indiciesObject

Returns the value of attribute _indicies


53
54
55
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 53

def _indicies
  @_indicies
end

._key_spansObject

Returns the value of attribute _key_spans


31
32
33
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 31

def _key_spans
  @_key_spans
end

._trans_actionsObject

Returns the value of attribute _trans_actions


287
288
289
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 287

def _trans_actions
  @_trans_actions
end

._trans_keysObject

Returns the value of attribute _trans_keys


13
14
15
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 13

def _trans_keys
  @_trans_keys
end

._trans_targsObject

Returns the value of attribute _trans_targs


273
274
275
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 273

def _trans_targs
  @_trans_targs
end

.en_comment_tailObject

Returns the value of attribute en_comment_tail


325
326
327
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 325

def en_comment_tail
  @en_comment_tail
end

.en_mainObject

Returns the value of attribute en_main


329
330
331
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 329

def en_main
  @en_main
end

.errorObject

Returns the value of attribute error


320
321
322
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 320

def error
  @error
end

.first_finalObject

Returns the value of attribute first_final


316
317
318
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 316

def first_final
  @first_final
end

.startObject

Returns the value of attribute start


312
313
314
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 312

def start
  @start
end

Class Method Details

.parse(data) ⇒ Object


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
# File 'lib/mail/parsers/content_transfer_encoding_parser.rb', line 333

def self.parse(data)
  data = data.dup.force_encoding(Encoding::ASCII_8BIT) if data.respond_to?(:force_encoding)

  content_transfer_encoding = ContentTransferEncodingStruct.new("")
  return content_transfer_encoding if Mail::Utilities.blank?(data)

  # Parser state
  encoding_s = nil

  # 5.1 Variables Used by Ragel
  p = 0
  eof = pe = data.length
  stack = []

  begin
    p ||= 0
    pe ||= data.length
    cs = start
    top = 0
  end

  begin
    testEof = false
    _slen, _trans, _keys, _inds, _acts, _nacts = nil
    _goto_level = 0
    _resume = 10
    _eof_trans = 15
    _again = 20
    _test_eof = 30
    _out = 40
    while true
      if _goto_level <= 0
        if p == pe
          _goto_level = _test_eof
          next
        end
        if cs == 0
          _goto_level = _out
          next
        end
      end
      if _goto_level <= _resume
        _keys = cs << 1
        _inds = _index_offsets[cs]
        _slen = _key_spans[cs]
        _wide = data[p].ord
        _trans = if (_slen > 0 &&
                     _trans_keys[_keys] <= _wide &&
                     _wide <= _trans_keys[_keys + 1])
                   _indicies[_inds + _wide - _trans_keys[_keys]]
                 else
                   _indicies[_inds + _slen]
                 end
        cs = _trans_targs[_trans]
        if _trans_actions[_trans] != 0
          case _trans_actions[_trans]
          when 1
            begin
              encoding_s = p
            end
          when 10
            begin
              content_transfer_encoding.encoding = chars(data, encoding_s, p - 1).downcase
            end
          when 3
            begin
            end
          when 6
            begin
            end
          when 2
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 9
                _goto_level = _again
                next
              end
            end
          when 9
            begin
              begin
                top -= 1
                cs = stack[top]
                _goto_level = _again
                next
              end
            end
          when 11
            begin
              content_transfer_encoding.encoding = chars(data, encoding_s, p - 1).downcase
            end
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 9
                _goto_level = _again
                next
              end
            end
          when 4
            begin
            end
            begin
              encoding_s = p
            end
          when 5
            begin
            end
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 9
                _goto_level = _again
                next
              end
            end
          when 7
            begin
            end
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 9
                _goto_level = _again
                next
              end
            end
          when 8
            begin
            end
            begin
              begin
                top -= 1
                cs = stack[top]
                _goto_level = _again
                next
              end
            end
          end
        end
      end
      if _goto_level <= _again
        if cs == 0
          _goto_level = _out
          next
        end
        p += 1
        if p != pe
          _goto_level = _resume
          next
        end
      end
      if _goto_level <= _test_eof
        if p == eof
          case _eof_actions[cs]
          when 10
            begin
              content_transfer_encoding.encoding = chars(data, encoding_s, p - 1).downcase
            end
          when 3
            begin
            end
          end
        end
      end
      if _goto_level <= _out
        break
      end
    end
  end

  if p != eof || cs < 21
    raise Mail::Field::IncompleteParseError.new(Mail::ContentTransferEncodingElement, data, p)
  end

  content_transfer_encoding
end