From: Bertram Scharpf <lists@...>
Date: 2009-01-20T13:03:36+09:00
Subject: Re: Gsub!("\n","\n")

Hi,

Am Dienstag, 20. Jan 2009, 09:19:02 +0900 schrieb Simon Tan:
> Hi all, I'm not sure why but I assumed gsub! would allow me to replace
> \n with line feeds or \r for carriage returns.

  str.gsub! "\\n", "\n"
  str.gsub! "\\r", "\r"

This is a security risk:

  eval %Q("#{str}")

Maybe this does:

  str = "hello\\nbye"
  str.gsub! /\\(\w)/ do |m| eval '"\\' + $1 + '"' end

Okay, \ escaping is a weird matter.

You know that gsub! returns nil in case nothing was changed?

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de