gistfile1.txt

require 'sender'

# For fun, trying to define my own string interpolator so that any symbol in a string (optionally end-delimited with a colon if not at a word boundary) gets substituted for its eval'd value.

# Here's what I have so far. No workie, due to context issue with "eval" call. Help?

class String
  def i
    self.gsub(/:([\w_]+)/){|match| __sender__.eval $1}
  end
end

t = 4
abba = 6
system = "systema"

puts "this is a :t of the :abba :system.".i