After the first experimental code had been written in #UCSD_Pascal, the majority of #Lisa_OS was written in #Lisa_Pascal. The first versions of #Mac_OS and applications for Lisa OS were written in #Clascal, an early version of #Object_Pascal. The coevolution of #Pascal and Apple OSes is interesting.

before "object pascal" there was "clascal" but someone changed the name because they hate whimsy and despise fun and they probably stepped on a pun wrong once and tore their acl and i kinda just pity them in general

My “plang” Pascal front-end is now 13672 lines of ANSI C (sans tests) including optional support for Clascal.

A brief history of primary coding languages | Discussion

And it's intersting to read the assembly and Clascal - an object-oriented dialect of Pascal designed by Apple with Niklaus Wirth (creator of Pascal). Oh, those were the days!

info.computerhistory.org/apple-lisa-c...

OK, here's my Pascal front-end! There’s a separate branch for Clascal, of course, so it’s easy to see what it actually took to implement.

https://github.com/eschaton/plang

Significado de #clascal Es otra manera de llamar en México a una tortilla de maíz... clascal

Feed: "The Eclectic Light Company"
By: hoakley on Saturday, July 19, 2025

Meaning of #clascal It is another way of calling a corn tortilla in Mexico. .. clascal

Significado de #clascal É outra maneira de chamar uma tortilha de milho no México. .. clascal

Lisa Source Code: Understanding Clascal

Analysis of Lisa Clascal source-code