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_actions ⇒ Object

Returns the value of attribute _eof_actions.



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

def _eof_actions
  @_eof_actions
end

._index_offsets ⇒ Object

Returns the value of attribute _index_offsets.



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

def _index_offsets
  @_index_offsets
end

._indicies ⇒ Object

Returns the value of attribute _indicies.



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

def _indicies
  @_indicies
end

._key_spans ⇒ Object

Returns the value of attribute _key_spans.



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

def _key_spans
  @_key_spans
end

._trans_actions ⇒ Object

Returns the value of attribute _trans_actions.



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

def _trans_actions
  @_trans_actions
end

._trans_keys ⇒ Object

Returns the value of attribute _trans_keys.



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

def _trans_keys
  @_trans_keys
end

._trans_targs ⇒ Object

Returns the value of attribute _trans_targs.



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

def _trans_targs
  @_trans_targs
end

.en_comment_tail ⇒ Object

Returns the value of attribute en_comment_tail.



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

def en_comment_tail
  @en_comment_tail
end

.en_main ⇒ Object

Returns the value of attribute en_main.



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

def en_main
  @en_main
end

.error ⇒ Object

Returns the value of attribute error.



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

def error
  @error
end

.first_final ⇒ Object

Returns the value of attribute first_final.



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

def first_final
  @first_final
end

.start ⇒ Object

Returns the value of attribute start.



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

def start
  @start
end

Class Method Details

.parse(data) ⇒ Object 



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# 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