class HTML::Pipeline::EmailReplyFilter
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.
Constants
- EMAIL_FRAGMENT_HEADER
- EMAIL_HEADER_END
- EMAIL_HIDDEN_HEADER
- EMAIL_QUOTED_HEADER
- EMAIL_SIGNATURE_HEADER
Public Instance Methods
Scans an email body to determine which bits are quoted and which should be hidden. EmailReplyParser is used to split the comment into an Array of quoted or unquoted Blocks. Now, we loop through them and attempt to add <div> tags around them so we can hide the hidden blocks, and style the quoted blocks differently. Since multiple blocks may be hidden, be sure to keep the “email-hidden-reply” <div>s around “email-quoted-reply” <div> tags. Call this on each comment of a visible thread in the order that they are displayed. Note: all comments are processed so we can maintain a Set of SHAs of paragraphs. Only plaintext comments skip the markdown step.
Returns the email comment HTML as a String
# File lib/html/pipeline/email_reply_filter.rb, line 43 def call found_hidden = nil paragraphs = EmailReplyParser.read(text.dup).fragments.map do |fragment| pieces = [escape_html(fragment.to_s.strip).gsub(/^\s*(>|>)/, '')] if fragment.quoted? pieces.unshift EMAIL_QUOTED_HEADER pieces << EMAIL_HEADER_END elsif fragment.signature? pieces.unshift EMAIL_SIGNATURE_HEADER pieces << EMAIL_HEADER_END else pieces.unshift EMAIL_FRAGMENT_HEADER pieces << EMAIL_HEADER_END end if fragment.hidden? && !found_hidden found_hidden = true pieces.unshift EMAIL_HIDDEN_HEADER end pieces.join end paragraphs << EMAIL_HEADER_END if found_hidden paragraphs.join("\n") end