On 19/03/2020 13:18, Martin Gregorie wrote:
> So, can any of you do better, i.e. write a regex that CAN validate the
> syntax of an e-mail address in terms of its structure and the set of
> permitted characters on the username and domain parts (the permitted
> character sets are not the same).
No. That's why I don't bother with regex, ever.

Its far faster for me to write a series of tests in 'C' then try and
work out what random gobbledygook will do the job in regex.

Regex is for nerds to impress other people with. Its not a smart way to
program.

Same as SQL. By the time you have taken a day to write the SQL query
that does everything you want, only to realise it takes 50 minutes to
complete, you could have written most of  it in C and got it down to 3
seconds...

--
“Those who can make you believe absurdities, can make you commit
atrocities.”

― Voltaire, Questions sur les Miracles à M. Claparede, Professeur de
Théologie à Genève, par un Proposant: Ou Extrait de Diverses Lettres de
M. de Voltaire

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