From: Nathaniel Madura <nmadura@...>
Date: 2010-04-23T00:46:09+09:00
Subject: Reprocess Escape Sequences

I am getting a string that has escape sequences in it, and I would like
to print it to the screen after reprocessing the escape sequences. Maybe
I have missed something obvious but I haven't seen anything in the docs
that suggest how to do this. To replicate the behaviour I create a
string in irb like so:

$ irb
>> str = 'some \n\r string \t with \r escape \n sequences'
=> "some \\n\\r string \\t with \\r escape \\n sequences"
>> eval "puts str"
some \n\r string \t with \r escape \n sequences
=> nil
>> puts "%s" % str
some \n\r string \t with \r escape \n sequences
=> nil

I recognize that I can simply do a gsub:

>> puts str.gsub(/\\n/, "\n")
some
\r string \t with \r escape
 sequences
=> nil

but that would mean I would have to pattern match all sequences, and it
seems like there should be a better way

Any suggestions?
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