Brad Gilbert say my Effective Perl post about script runs (a stable feature in v5.32) and offered this Raku version on Twitter: # Perl 5: /(*script_run:(\d+))/ / \d+ <?{ [eq] […]
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Custom operators for Knuth’s Arrow
The Wikipedia page for Knuth’s up arrow notation makes some claims about superscripts: But many environments — such as programming languages and plain-text e-mail — do not support superscript typesetting.
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