From: joemac <joemacbusiness@...>
Date: 2010-02-23T03:45:17+09:00
Subject: Re: How do I use a variable in a regexp search string?

On Jan 29, 7:38 pm, Harry Kakueki <list.p...@gmail.com> wrote:
> > I dont know how to use avariablein a regex searchstring.
> > ruby seems to only handle hardcoded serachstring in
> > regex's.   How do you do this.   My code is below.
>
> Does this help?
>
> str = "abcdef"
> searchstring = "cd"
> p str =~ /#{searchstring}/
>
> Harry

Hi Folks,

Thanks for all the helpful info.
It was the #{} syntax that i was missing.
This also works for the "filename as a varible" situation
when parsing lots of files:

filenames = ["input1", "input2", "input3"]

for fname in filenames
   infile = File.open("#{fname}")
   while line = infile.gets()
      puts line
   end
   puts "================== end file ==================="
end


Very helpfull!

Thanks, --JM