From: matt@... (matt neuburg)
Date: 2008-05-04T00:35:17+09:00
Subject: Re: n00b string replace

<theistian@gmail.com> wrote:

> irb(main):003:0> sst = st.gsub(/'/,"\'")

You can really confuse the heck out of yourself this way. There are two
problems:

(1) Backslashes must be escaped in a double-quoted string.

(2) gsub has special behavior unlike anything else in Ruby: backslashes
are unescaped in the second parameter, regardless of the quoting.

So, if you want one backslash to be substituted, and if you insist on
double-quoting, you have to type *four* backslashes:

irb(main):003:0> puts "hello".gsub("e","\\\\")
h\llo

For the workaround, check this recent thread:

<http://groups.google.com/group/comp.lang.ruby/browse_thread/thread/d8f4
74e7f2959585/9cadabc099a27925?lnk=st&q=#9cadabc099a27925>

m.
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