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Uh... the "original source code" for ex visual mode was distributed in the original BSD drop in 1978. The AT&T tree didn't get it for a few years at least. Th

by ajross 3y ago

Uh... the "original source code" for ex visual mode was distributed in the original BSD drop in 1978. The AT&T tree didn't get it for a few years at least. This is a significantly evolved version. The Berkeley copyrights are 1981, so it's probably from 4BSD.

hovav 3y ago
Indeed, the History of Documented Unix Facilities [https://github.com/dspinellis/unix-history-man https://github.com/dspinellis/unix-history-man] says a vi(1) man page first appeared in 2BSD, and vi is implemented (as part of ex, with a 1979 copyright) in 2BSD src/ex, with the main routines at src/ex/ex_vmain.c: https://github.com/dspinellis/unix-history-repo/blob/BSD-2-Snapshot-Development/src/ex/ex_vmain.c https://github.com/dspinellis/unix-history-repo/blob/BSD-2-S...