Pack('m') and Windows files

Ruby
1

Hi all,

first post here, hope to ask things the right way :slight_smile:

I’m using Ruby from RubyInstaller, 1.9.1-p243. I’m trying to send a .txt
file (which notepad++ says it’s Dos/Windows with ANSI encoding) via
email using something like:
content = File.read(filename)
enccont = [content].pack(‘m’)

Then inserting enccont inside a heredoc containing the whole mail to
send, like:
message =<<EOMESS
…
#{enccont}
…
EOMESS

The results are that I receive a mail that lacks of the ‘end of lines’,
in which place there are little squares (one per each line, to be fair).
Also, filetype is Unix (and not Dos/Windows).

I tried previously to substitute \n with \r\n:
content = File.read(filename).gsub(/\n/, ‘\r\n’)

but the results are worse than before (\r\n appears also in the
attachment).

I would like to obtain the same file also via email. Is that possible?
Is there someone which has some ideas on how to achieve that?

Thanks, regards,

2

The results are that I receive a mail that lacks of the ‘end of lines’,
in which place there are little squares (one per each line, to be fair).
Also, filetype is Unix (and not Dos/Windows).

I tried previously to substitute \n with \r\n:
content = File.read(filename).gsub(/\n/, ‘\r\n’)

Make sure you’re using double-quotes for “\r\n” and not single-quotes.

Aaron out.

3

Emiliano wrote:

The results are that I receive a mail that lacks of the ‘end of lines’,
in which place there are little squares (one per each line, to be fair).
Also, filetype is Unix (and not Dos/Windows).

I tried previously to substitute \n with \r\n:
content = File.read(filename).gsub(/\n/, ‘\r\n’)

To which I responded:

Make sure you’re using double-quotes for “\r\n” and not single-quotes.

I suppose I should have elaborated:

irb(main):001:0> ‘\n’
=> “\n”
irb(main):002:0> “\n”
=> “\n”

Notice how encapsulating the backslash within single quotes results in
the string “\n”? Backslashes inside single-quoted strings escape the
backslash itself, and also single quotes, but not \r\n CR+LF escape
sequences:

irb(main):001:0> ‘This is a backslash: \’
=> “This is a backslash: \”
irb(main):002:0> “This is a backslash: \”
=> “This is a backslash: \”
irb(main):003:0> 'This is a single-quote: ‘’
=> “This is a single-quote: '”
irb(main):004:0> ‘But other escape sequences do not work: \r\n\t\b’
=> “But other escape sequences do not work: \r\n\t\b”
irb(main):005:0> “They do within double quotes: \r\n\t\b”
=> “They do within double quotes: \r\n\t\b”

Aaron out.

4

Aaron D. Gifford wrote:

To which I responded:

Make sure you’re using double-quotes for “\r\n” and not single-quotes.

I suppose I should have elaborated:

To be honest, you put me on the right way with the first message indeed,
but thank you very much for the clear elaboration.

Obviously, the problem is solved. Thanks again.