module ActionMailer::MailHelper

def attachments

Access the message attachments list. 
def attachments
  mailer.attachments
end

def block_format(text)

wrapped at 72 columns.
Take the text and format it, indented two spaces for each line, and 
def block_format(text)
  formatted = text.split(/\n\r?\n/).collect { |paragraph|
    format_paragraph(paragraph)
  }.join("\n\n")
  # Make list points stand on their own line
  formatted.gsub!(/[ ]*([*]+) ([^*]*)/) { |s| "  #{$1} #{$2.strip}\n" }
  formatted.gsub!(/[ ]*([#]+) ([^#]*)/) { |s| "  #{$1} #{$2.strip}\n" }
  formatted
end

def format_paragraph(text, len = 72, indent = 2)

# => " Here is a sample text with\n more than 40 characters"
format_paragraph(my_text, 25, 4)

my_text = 'Here is a sample text with more than 40 characters'

Returns +text+ wrapped at +len+ columns and indented +indent+ spaces. 
def format_paragraph(text, len = 72, indent = 2)
  sentences = [[]]
  text.split.each do |word|
    if sentences.first.present? && (sentences.last + [word]).join(' ').length > len
      sentences << [word]
    else
      sentences.last << word
    end
  end
  indentation = " " * indent
  sentences.map! { |sentence|
    "#{indentation}#{sentence.join(' ')}"
  }.join "\n"
end

def mailer

Access the mailer instance. 
def mailer
  @_controller
end

def message

Access the message instance. 
def message
  @_message
end