27 Mar
2007
27 Mar
'07
1:33 a.m.
George Currie wrote:
Well, I'm surprised you haven't just rolled
your own ;) Simple editors
are not very difficult to write, I'm sure you can find various
libraries/routines to do most of the grunt work for you and you could be
the first person in 15 years to roll a new DOS text editor :)
Writing a basic editor is easy -- speed and a functional undo,
unfortunately, are not, and take some planning. DOS memory is segmented
so you can't just insert characters and move memory down/up one byte at
a time (and speed would be an issue with large files anyway). Nor can
you go super-crazy with your data structure, because you'll sacrifice
speed. Every year I sit down ready to write my own editor, and I
usually give up after 3 minutes of trying to figure out the best
compromise between my time, speed, and a functional undo. (Hence the
research and article I posted.)
On a more serious note, have you checked out the
Borland Editor
Toolbox? IIRC it let you roll an editor similar in features to their
Yep; full example editor is 170KB and has no undo, but maybe I missed a
source directive somewhere in building the example project. I'll take
another look at it.
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/