author | Christian Urban <christian dot urban at kcl dot ac dot uk> |
Tue, 20 Sep 2016 12:13:11 +0100 | |
changeset 420 | 25bc57b32efa |
parent 411 | 1aec0e1fda86 |
child 474 | 4bdf0dedd708 |
permissions | -rw-r--r-- |
# example provided by Daniel Baldwin nums = (1..1000) #iterate through the nums 1-100 nums.each do |i| start_time = Time.now string = "a" * i re_str = "a?" * i + "+" + "a" * i #create a new regular expression based on current value of i re = Regexp.new(re_str) re.match(string) #if re.match(string) # puts "matched string a * #{i} with regex #{re}" #else # puts "unmatched string a * #{i} with regex #{re}" #end puts "#{i} %.5f" % (Time.now - start_time) end