The concept of the folding editor was originally implemented as part of
the Transputer development system at INMOS Ltd., Bristol, UK.

The editor was a part of the TDS D700, and was written in Occam.
It first ran on a 68000 based Sage/Stride development system, and
later was Transputer resident on the PC development system.

It was rewritten from scratch in Turbo Pascal by Martin Green while at
Ferranti Ltd, Cheadle Heath, Stockport, England, and used the same key
mappings and editor functions as the TDS editor.

It was then converted from Turbo Pascal by p2c and ported by
Charlie Lawrence, while at Eastman Kodak Co. He added lex/yacc based
keyfiles, and did the considerable work needed to get it running in C.

Email: lawrence@lawrence.kodak.com

This version (1.5) was modified by Michael Haardt and Wolfgang Stumvoll
of the RWTH in Aachen, Germany, from the C/Unix port of v1.31.

They have basically turned Origami into an Emacs-lookalike editor, with
a screen display very like MicroEMACS, and a new (compiled) keybinding/macro
language (OCL) similar to GNU Emacs' Emacs Lisp. Some bugs have been
fixed, and a few other changes made, such as dBase mode being replaced
by roff mode, and fewer termcap capabilites are needed. Some extra
Emacs functions have been implemented (eg. goto-matching-fence,
fill-paragraph) using OCL - there is even a Towers of Hanoi macro
supplied!

A User Guide and man page are also supplied with the source.

Email: u31b3hs@cip-s02.informatik.rwth-aachen.de