bug#41006: 26.3; regular expressions documentation

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
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[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

  > It doesn't follow that general use of regexps to
  > search/match ("how") can't usefully be introduced
  > before the full "what".

In an introductory manual, or introductory chapters at the beginning,
we sometimes do that.  However, in a reference manual, that would
make it hard for the reader to find the whole of any topic.

-- 
Dr Richard Stallman
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)