From: Bill Kelly <billk@...>
Date: 2005-01-20T03:11:46+09:00
Subject: gsub and \\\\

Hi,

I'm probably being dense, but - 

>> "ab\\cd".gsub(/\\/, "\\\\")
=> "ab\\cd"

I expected the above to produce "ab\\\\cd"

If i add a character in between the \\\\, then
I do get two backslashes in the result:

>> "ab\\cd".gsub(/\\/, "\\a\\")
=> "ab\\a\\cd"

If I add a third backslash in the replacement string,
then I get two in the result:

>> "ab\\cd".gsub(/\\/, "\\\\\\")
=> "ab\\\\cd"


Is this the expected behavior?  If so, what's the
principle I need to know to understand it?  :)

(ruby 1.8.2 (2004-07-29) [i386-mswin32] and
 ruby 1.8.2 (2004-11-06) [i686-linux])


Thanks,

Regards,

Bill