command specific command completion

[dalehenrich]

From Marten Feldtmann:

I go to the tODE shell and enter "cls create MyFirstClass Object MSKGrummel-Core` and the first class is defined. Here one point would be really nice:

• I do not want to type the whole stuff - If I enter "Ob" I would like to have autocomplection on the shell and if I enter "MSKG" I would also like to have autocompletion - like in a bash.

of course, the context has to be taken into account that we're on a command that is expecting a class name ... etc.