Una Merge does real-time merging and has per user undo. And it can do
lots of stuff that seems darcs-like, though I don't know enough about
darcs to say for sure (e.g. moving a user's own edits after other
edits).
http://www.n-brain.net/una_merge.html
Regards,
John A. De Goes
N-Brain, Inc.
The Evolution of Collaboration
http://www.n-brain.net | 877-376-2724 x 101
On May 8, 2009, at 1:35 PM, Jeremy Shaw wrote:
At Fri, 8 May 2009 17:33:25 +0200,
Peter Verswyvelen wrote:
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If you work with a text editor like Microsoft Visual Studio (maybe
also
Eclipse, don't know), each text editor has its own undo/redo history.
However, when you perform refactoring - like renaming a function -
this
becomes an undo/redo on multiple files together, so in a sense
these changes
are part of a global history.
If you read this paper, you will find an undo system for a
colloborative editor complete with a theory that looks like a
primitive version of darcs patch theory (complete with the dreaded
merge bug of darcs 1):
Undoing actions in collaborative work: Framework and experience by
Prakash and Knister
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.48.6443&rep=rep1&type=pdf
You will probably find these papers informative as well:
Recognizing creative needs in user interface design by Terry and
Mynatt
http://www.cc.gatech.edu/fce/ecl/projects/openEnded/pubs/creativeInterfaces-creativecog2002.pdf
A Selective Undo Mechanism for Graphical User Interfaces Based On
Command Objects (1994) by Thomas Berlage
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.31.755
Flexible Conflict Detection and Management In Collaborative
Applications (1997) by Keith Edwards
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.5439
Undo Any Operation at Any Time in Group Editors (2000) by Chengzheng
Sun
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.32.6266
And, of course, you can use citeseer to find more papers that
reference those.
- jeremy
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