How to print all expressions that match a regular expression

[Ben Finney]

Roy Smith <roy at panix.com> writes:

>  "hzhuo1 at gmail.com" <hzhuo1 at gmail.com> wrote:
> > What I need is that given a particular regular expression, output
> > all the matches.
[…]

> Please enumerate all the strings which match ".*". Use additional
> sheets of paper if needed.

+1 QOTW

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 \     “Are you pondering what I'm pondering?” “I think so, ... Brain, |
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Ben Finney