[MacRuby-devel] PBI - translate TextEdit to MacRuby

[Rich Morin]

A friend of mine asked:

> What word processor do you use on the Mac? I'd like to
> find an open-source, lightweight rich text editor (not
> OpenOffice... too big).  Any suggestions?

His question made me think of a nifty project.  TextEdit
is one of the canonical example programs in the Mac OS X
Developer Tools.  It's not all that big, really:

$ cd /Developer/Examples/AppKit/TextEdit/

$ wc -l *.h
       5 Controller.h
     124 Document.h
      26 DocumentController.h
      11 DocumentPropertiesPanelController.h
      23 DocumentWindowController.h
      49 EncodingManager.h
      11 LinePanelController.h
      23 MultiplePageView.h
     100 Preferences.h
      11 PrintPanelAccessoryController.h
      14 ScalingScrollView.h
      16 TextEditErrors.h
     413 total

$ wc -l *.m
     140 Controller.m
    1110 Document.m
     269 DocumentController.m
     133 DocumentPropertiesPanelController.m
     702 DocumentWindowController.m
       5 Edit_main.m
     344 EncodingManager.m
     162 LinePanelController.m
     209 MultiplePageView.m
     418 Preferences.m
      87 PrintPanelAccessoryController.m
     201 ScalingScrollView.m
    3780 total

The usual claim is that Ruby is several times smaller than C, C++,
etc.  Let's assume that a factor of four is typical.  This would
let TextEdit be recapitulated in 1000 LOC of Ruby.  It would run
about as fast (most of the work is done in the Apple frameworks)
and it would be easily extensible in Ruby.  In fact, it could use
user- or site-specific "libraries" stored in initialization files.

Does anyone else find this notion interesting?

-r
-- 
http://www.cfcl.com/rdm            Rich Morin
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