From: Simon Tan <simon1tan@...>
Date: 2009-01-20T10:16:39+09:00
Subject: Re: Gsub!("\n","\n")

haha actually, the other way around :)  I have a string(I believe...I'm 
using Hpricot to retreive web pages and it likes to add slashes to 
everything). For example, I want to change "Hello, \nWorld" by changing 
\n into a newline.  So the output should be like:
Hello
World


I did try your suggestion, but I get "Hello\\nWorld".  Will keep playing 
with the slashes.

Rob Biedenharn wrote:
> On Jan 19, 2009, at 7:19 PM, Simon Tan wrote:
> 
>> -- 
> Are you trying to turn this:
> 
> Hello,
> World
> 
> Into something like:
> 
> Hello,\nWorld
> 
> If so, you need to change "\n" (1 character string) into "\\\\n" (3
> character string, two escaped backslashs and the letter 'n').  The
> replacement string will undergo two different interpretations: as a
> string literal "\\\\n" becomes \\n which when interpreted as a
> replacement for a regexp undergoes another round (so that things like
> \1 and \2 can reference groups in the regexp) and becomes \n
> 
> Yes, this is tricky, but it's because there are two levels of escaping
> going on and both use the backslash.
> 
> -Rob
> 
> Rob Biedenharn    http://agileconsultingllc.com
> Rob@AgileConsultingLLC.com

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