JezK
Edit File: content_transfer_encoding_parser.rl
# frozen_string_literal: true require 'mail/utilities' require 'mail/parser_tools' %%{ machine content_transfer_encoding; alphtype int; action encoding_s { encoding_s = p } action encoding_e { content_transfer_encoding.encoding = chars(data, encoding_s, p-1).downcase } # No-op actions action comment_e { } action comment_s { } action phrase_e { } action phrase_s { } action qstr_e { } action qstr_s { } action param_attr_e { } action param_attr_s { } action param_val_e { } action param_val_s { } action main_type_e { } action main_type_s { } action sub_type_e { } action sub_type_s { } include rfc2045_content_transfer_encoding "rfc2045_content_transfer_encoding.rl"; main := content_transfer_encoding; }%% module Mail::Parsers module ContentTransferEncodingParser extend Mail::ParserTools ContentTransferEncodingStruct = Struct.new(:encoding, :error) %%write data noprefix; 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 = [] %%write init; %%write exec; if p != eof || cs < %%{ write first_final; }%% raise Mail::Field::IncompleteParseError.new(Mail::ContentTransferEncodingElement, data, p) end content_transfer_encoding end end end