From: Leslie Viljoen <leslieviljoen@...>
Date: 2006-10-03T06:59:53+09:00
Subject: Email embedding

Hello!

Seeing the XML-like format one of the quiz posters used for sending in
his program, I wrote two programs that can embed and extract multiple
files from an email. I'll include the programs in their own format so
you can understand ;-)

Someone may have already done something like this, but if not, here you go.

I know of one problem - the uncruncher adds a blank line at the end of
the files it extracts, so someone might want to fix that.

<code>
<CRUNCHFILE: email_crunch.rb>
#/usr/bin/env ruby

# email_crunch
# usage: email_crunch.rb *.rb > crunchfile.txt

puts "<code>"
ARGV.each do |f|
  next if FileTest.directory?(f)

  puts "<CRUNCHFILE: #{f}>"
  puts File.new(f).read
  puts "</CRUNCHFILE: #{f}>"
end
puts "</code>"

</CRUNCHFILE: email_crunch.rb>
<CRUNCHFILE: email_uncrunch.rb>
#/usr/bin/env ruby

# email_uncrunch
# usage: cat crunch_file | email_uncrunch.rb
# or   : email_uncrunch.rb crunch_file

require 'breakpoint'

if ARGV.length != 0
  text = File.new(ARGV[0]).read
else
  text = $stdin.read
end

text =~ /<code>(.*)<\/code>/m
code = $1

filename = ""
f = nil

code.each_line do |line|
  line.chomp!
  if line =~ /^<CRUNCHFILE: (.+?)>$/
    filename = $1
    puts "Creating #{filename}"
    f = File.new(filename, "w")
  elsif !filename.empty?
    if line == "</CRUNCHFILE: #{filename}>"
      f.close
      filename = ""
    else
      f.puts(line)
    end
  end
end

</CRUNCHFILE: email_uncrunch.rb>
</code>


- Les