HTML::Pipeline.require_dependency('escape_utils', 'EmailReplyFilter') HTML::Pipeline.require_dependency('email_reply_parser', 'EmailReplyFilter') module HTML class Pipeline # HTML Filter that converts email reply text into an HTML DocumentFragment. # It must be used as the first filter in a pipeline. # # Context options: # None # # This filter does not write any additional information to the context hash. class EmailReplyFilter < TextFilter include EscapeUtils EMAIL_HIDDEN_HEADER = %(