[jokosher-devel] New undo syntax

[Laszlo Pandy <laszlok2 gmail com>]

In order to properly fix the undo stack vulnerability, the undo string 
inside a function's docstring needs a new syntax. I have decided that to 
make it easy to parse, the variables that need to be passed will be 
separated by commas. Also the function name must come first and it 
should be separated from the parameters by a colon like so:

Move: temp, temp2

When inside a docstring with the "undo : " in front so we can locate it, 
it looks like this:

"""
   undo : Move: temp, temp2
"""

Personally I don't like the colons performing two different things on 
the name line - it looks weird and is less clear. Here are some 
suggestions that I think would look better:

undo ~ Move: temp, temp2
undo @ Move: temp, temp2
undo >> Move: temp, temp2

This is mostly an aesthetic thing, so if you don't care then just ignore 
it and I will decide.

Laszlo