Ángel
@angel@triptico.com
Ángel » 2022-11-17@angel@triptico.com
An interesting article on them by Getty Ritter:
https://what.happens.when.computer/2016-08-30/structural-res/
The original Rob Pike paper (PDF):
http://doc.cat-v.org/bell_labs/structural_regexps/se.pdf
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