4 ms·

OT: I'd be interested to know where folding editors first originated? We have org-mode now of course. My first encounter was 28 years ago now - December 1989

OT: I'd be interested to know where folding editors first originated? We have org-mode now of course. My first encounter was 28 years ago now - December 1989 - an in-house editor called Teddy written by "Burkhard" that we had running on Vax - for Parasolid development in Cambridge, UK - think it dated from 1987 or earlier.

delhanty 9y ago
Then I remember David Lavender joining Parasolid in 1992 - not liking Teddy that much - a little bit of elisp later he had folds working in Emacs. * So folds in Emacs date from at least 1992. * It could occasionally create corrupt folded files though, which was annoying if he checked them in to the SCM.
- qualitytime 9y ago
  Yes, 1992, by a classmate friend of mine Jamie Lokier! https://www.emacswiki.org/emacs/folding.el https://www.emacswiki.org/emacs/folding.el
pm215 9y ago
https://en.m.wikipedia.org/wiki/Transputer https://en.m.wikipedia.org/wiki/Transputer says that the Inmos D700 Transputer Development System had a folding editor. That would have been in the early 1980s I think?
simmons 9y ago
I haven't used org-mode, so I may be a bit unclear on exactly what is meant by folding editors. However, if we're talking about collapsing sections of text, I wonder if the oN-Line System (NLS) would qualify, as shown in Douglas Engelbart's 1968 "The Mother of All Demos" [1]. [1] https://www.youtube.com/watch?v=yJDv-zdhzMY&t=5m48s https://www.youtube.com/watch?v=yJDv-zdhzMY&t=5m48s
jessegrosjean 9y ago
I'm think Engelbart's "Mother of all demos" included folding headings. https://en.wikipedia.org/wiki/The_Mother_of_All_Demos https://en.wikipedia.org/wiki/The_Mother_of_All_Demos I think the first "popular" ones were made by Dave Winer (http://davewiner.com http://davewiner.com). Here's a list of some (http://outliners.scripting.com http://outliners.scripting.com)
cschmidt 9y ago
Dave Winer's http://outliners.scripting.com/ http://outliners.scripting.com/ site has some interesting history. You can download the old programs there. I remember using MORE on the Mac in the late '80s.
Someone 9y ago
Wikipedia claims IBM’s SPF in 1974 (https://en.wikipedia.org/wiki/Code_folding#History https://en.wikipedia.org/wiki/Code_folding#History), using indentation to identify blocks (one may call that cheating, as folding would break down if the code wasn’t indented consistently, but for 1974, I wouldn’t hold it against them)

delhanty 9y ago

Then I remember David Lavender joining Parasolid in 1992 - not liking Teddy that much - a little bit of elisp later he had folds working in Emacs. * So folds in Emacs date from at least 1992. * It could occasionally create corrupt folded files though, which was annoying if he checked them in to the SCM.

qualitytime 9y ago
Yes, 1992, by a classmate friend of mine Jamie Lokier! https://www.emacswiki.org/emacs/folding.el https://www.emacswiki.org/emacs/folding.el

pm215 9y ago

https://en.m.wikipedia.org/wiki/Transputer https://en.m.wikipedia.org/wiki/Transputer says that the Inmos D700 Transputer Development System had a folding editor. That would have been in the early 1980s I think?

simmons 9y ago

I haven't used org-mode, so I may be a bit unclear on exactly what is meant by folding editors. However, if we're talking about collapsing sections of text, I wonder if the oN-Line System (NLS) would qualify, as shown in Douglas Engelbart's 1968 "The Mother of All Demos" [1]. [1] https://www.youtube.com/watch?v=yJDv-zdhzMY&t=5m48s https://www.youtube.com/watch?v=yJDv-zdhzMY&t=5m48s

jessegrosjean 9y ago

I'm think Engelbart's "Mother of all demos" included folding headings. https://en.wikipedia.org/wiki/The_Mother_of_All_Demos https://en.wikipedia.org/wiki/The_Mother_of_All_Demos I think the first "popular" ones were made by Dave Winer (http://davewiner.com http://davewiner.com). Here's a list of some (http://outliners.scripting.com http://outliners.scripting.com)

cschmidt 9y ago

Dave Winer's http://outliners.scripting.com/ http://outliners.scripting.com/ site has some interesting history. You can download the old programs there. I remember using MORE on the Mac in the late '80s.

Someone 9y ago

Wikipedia claims IBM’s SPF in 1974 (https://en.wikipedia.org/wiki/Code_folding#History https://en.wikipedia.org/wiki/Code_folding#History), using indentation to identify blocks (one may call that cheating, as folding would break down if the code wasn’t indented consistently, but for 1974, I wouldn’t hold it against them)