From: Logan Capaldo <logancapaldo@...>
Date: 2006-07-29T08:50:57+09:00
Subject: Re: Finding "\" in a string


On Jul 28, 2006, at 7:25 PM, Paul Battley wrote:

> On 29/07/06, Logan Capaldo <logancapaldo@gmail.com> wrote:
>> This is why when I need to gsub backslashes I use a block:
>>
>> gsub(%r{\}) { '\\' }
>
> That's much easier, but significantly slower:
>
> s = "\\foo" * 1000000
>
> t0 = Time.now
> s.gsub("\\", "\\\\\\")
> p(Time.now - t0) # 1.394492
>
> t0 = Time.now
> s.gsub("\\"){ "\\\\" }
> p(Time.now - t0) # 2.863728
>
> If you are dealing with very long strings, it's probably worth the
> effort of ciphering the backslashes.
>
> Paul.
>

I'm sure it is. I'll learn how to decipher backslashes in gsub when I  
come across those strings <g>