Eric S Fraga writes: > It's in CTAN, the official (?) LaTeX repository.
I just saw it now there. CTAN is an infinite bazaar :-) By the way, in CTAN there is also the /TeX for the Impatient/ book (I love that title), which is a very good manual for programming at low level in TeX/plainTeX: https://www.ctan.org/pkg/impatient (it's more concise than Knuth's /TeX book/, which I bought on paper a long time ago, for 'historical' reasons...) Best regards, Juan Manuel
