ngrieb
Way Too Much Ubuntu

The only scripts I have written so far for blender are very simple ..... as I am learning them too ......
what you are asking for is beyond what I have done so far - but its got me looking into being able
to control vertices and bisect between them ..... this seems very similar to the split edge loop command.

Will see if I can find the code for it ....... someone else should already have written this ......

I found this LINK ..... which is interesting but not sure if it will have in it what you need VIDEO RELATED TO THIS

and a link to the CROUCH scripts

I managed to get TUX part rigged ..... the Link is here