module Mail::Parsers::ContentTypeParser
Constants
- ContentTypeStruct
Attributes
_eof_actions[RW]
_index_offsets[RW]
_indicies[RW]
_key_spans[RW]
_trans_actions[RW]
_trans_keys[RW]
_trans_targs[RW]
en_comment_tail[RW]
en_main[RW]
error[RW]
first_final[RW]
start[RW]
Public Class Methods
parse(data)
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# File lib/mail/parsers/content_type_parser.rb, line 689 def self.parse(data) data = data.dup.force_encoding(Encoding::ASCII_8BIT) if data.respond_to?(:force_encoding) return ContentTypeStruct.new("text", "plain", []) if Mail::Utilities.blank?(data) content_type = ContentTypeStruct.new(nil, nil, []) # Parser state main_type_s = sub_type_s = param_attr_s = param_attr = nil qstr_s = qstr = param_val_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 main_type_s = p end when 2 begin content_type.main_type = chars(data, main_type_s, p - 1).downcase end when 3 begin sub_type_s = p end when 19 begin content_type.sub_type = chars(data, sub_type_s, p - 1).downcase end when 4 begin param_attr_s = p end when 6 begin param_attr = chars(data, param_attr_s, p - 1) end when 9 begin qstr_s = p end when 11 begin qstr = chars(data, qstr_s, p - 1) end when 7 begin param_val_s = p end when 21 begin if param_attr.nil? raise Mail::Field::ParseError.new(Mail::ContentTypeElement, data, "no attribute for value") end # Use quoted s value if one exists, otherwise use parameter value value = qstr || chars(data, param_val_s, p - 1) content_type.parameters << {param_attr => value} param_attr = nil qstr = nil end when 12 begin end when 15 begin end when 5 begin begin stack[top] = cs top += 1 cs = 35 _goto_level = _again next end end when 18 begin begin top -= 1 cs = stack[top] _goto_level = _again next end end when 20 begin content_type.sub_type = chars(data, sub_type_s, p - 1).downcase end begin begin stack[top] = cs top += 1 cs = 35 _goto_level = _again next end end when 10 begin qstr_s = p end begin qstr = chars(data, qstr_s, p - 1) end when 8 begin param_val_s = p end begin begin stack[top] = cs top += 1 cs = 35 _goto_level = _again next end end when 25 begin if param_attr.nil? raise Mail::Field::ParseError.new(Mail::ContentTypeElement, data, "no attribute for value") end # Use quoted s value if one exists, otherwise use parameter value value = qstr || chars(data, param_val_s, p - 1) content_type.parameters << {param_attr => value} param_attr = nil qstr = nil end begin begin stack[top] = cs top += 1 cs = 35 _goto_level = _again next end end when 13 begin end begin param_attr_s = p end when 23 begin end begin if param_attr.nil? raise Mail::Field::ParseError.new(Mail::ContentTypeElement, data, "no attribute for value") end # Use quoted s value if one exists, otherwise use parameter value value = qstr || chars(data, param_val_s, p - 1) content_type.parameters << {param_attr => value} param_attr = nil qstr = nil end when 14 begin end begin begin stack[top] = cs top += 1 cs = 35 _goto_level = _again next end end when 16 begin end begin begin stack[top] = cs top += 1 cs = 35 _goto_level = _again next end end when 17 begin end begin begin top -= 1 cs = stack[top] _goto_level = _again next end end when 22 begin begin stack[top] = cs top += 1 cs = 35 _goto_level = _again next end end begin if param_attr.nil? raise Mail::Field::ParseError.new(Mail::ContentTypeElement, data, "no attribute for value") end # Use quoted s value if one exists, otherwise use parameter value value = qstr || chars(data, param_val_s, p - 1) content_type.parameters << {param_attr => value} param_attr = nil qstr = nil end when 24 begin end begin begin stack[top] = cs top += 1 cs = 35 _goto_level = _again next end end begin if param_attr.nil? raise Mail::Field::ParseError.new(Mail::ContentTypeElement, data, "no attribute for value") end # Use quoted s value if one exists, otherwise use parameter value value = qstr || chars(data, param_val_s, p - 1) content_type.parameters << {param_attr => value} param_attr = nil qstr = nil 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 19 begin content_type.sub_type = chars(data, sub_type_s, p - 1).downcase end when 21 begin if param_attr.nil? raise Mail::Field::ParseError.new(Mail::ContentTypeElement, data, "no attribute for value") end # Use quoted s value if one exists, otherwise use parameter value value = qstr || chars(data, param_val_s, p - 1) content_type.parameters << {param_attr => value} param_attr = nil qstr = nil end when 12 begin end when 23 begin end begin if param_attr.nil? raise Mail::Field::ParseError.new(Mail::ContentTypeElement, data, "no attribute for value") end # Use quoted s value if one exists, otherwise use parameter value value = qstr || chars(data, param_val_s, p - 1) content_type.parameters << {param_attr => value} param_attr = nil qstr = nil end end end end if _goto_level <= _out break end end end if p != eof || cs < 47 raise Mail::Field::IncompleteParseError.new(Mail::ContentTypeElement, data, p) end content_type end