Source: <a href="http://www.techotopia.com/index.php/Ruby_Ranges#Ruby_Range_Intervals">Ruby Ranges - Techotopia</a> [techotopia.com] <snip> Ruby Ranges can also be used as conditional expressions in looping conditions. The range start value represents the start of the loop, which runs until the range end marker is detected.
while input = gets puts input + " triggered" if input =~ /start/ .. input =~ /end/ end
</snip> output (test performed within an IRB session): <pre> test ready go do it start start triggered fun fun fun fun fun fun triggered rest rest triggered that's enough that's enough triggered stop stop triggered end end triggered sigh hello? ^CIRB::Abort: abort then interrupt!! </pre> Note: This syntax also works:
while input = gets puts input + " triggered" if input[/start/] .. input[/end/] end