From: Eric Armstrong <Eric.Armstrong@...>
Date: 2006-07-29T08:51:57+09:00
Subject: Re: Finding "\" in a string

Logan Capaldo wrote:
> 
> when I need to gsub backslashes I use a block:
> 
> gsub(%r{\}) { '\\' }
> 
That's odd. I would have expected that to work,
since the value of the block is the value of
the string.

But %r{\} produces:
   "unterminated string meets end of file"

And { '\\' } inserts a single backslash.

Paul's version worked:
   gsub("\\"){ "\\\\" }

As did this:
   gsub(%r{\\}) { '\\\\' }

Thanks for all the choices! I'm picking the
version with the simplest syntax I'm likely
to recall:
   gsub("\\") { '\\\\' }

It may be slower, but it's readable.

Thanks again, guys. There is no way on earth
I would found the solution. Heck, even now
that I see it, I don't really understand it.
(I'm hoping that Paul's in-depth explanation
will make more sense after I've read it 5 or
6 times.)
:_)