From: Robert Klemme <shortcutter@...>
Date: 2012-10-16T16:50:36+09:00
Subject: Re: Drop 1st and last particular character

On Tue, Oct 16, 2012 at 9:38 AM, Hans Mackowiak <lists@ruby-forum.com> wrote:
> or both regexp combined:
> "#hit#here#".gsub(/(^#)|(\#$)/,'')  #=> "hit#here"

We can also combine by positively matching:

irb(main):001:0> s = "#hit#here#"
=> "#hit#here#"
irb(main):002:0> s = s[/^#?(.*?)#?\z/, 1]
=> "hit#here"

All possible combinations

irb(main):003:0> %w{hi#there #hi#there hi#there# #hi#there#}.each {|s|
p s[/^#?(.*?)#?\z/, 1]}
"hi#there"
"hi#there"
"hi#there"
"hi#there"
=> ["hi#there", "#hi#there", "hi#there#", "#hi#there#"]

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/