Hi Athanasius,

You're absolutely right of course. My intention was to warn that, if only exact matches are desired, "ABC DEF GHI"=~/\bDEF\b/ ("DEF" being a "substring" of "ABC DEF GHI") would give a false positive. But by omitting a discussion of \b, my node became inaccurate, so thank you for the reply :-)

Thanks,
-- Hauke D