> Basically I just want a language to allow users to write macros, > interact with application objects, set property values, sequence > operations, supporting loops and branch logic and so forth. > > Something along the lines of a drawing program that allowed uers to > write and/or download scripts to perform batches of arbitrary > (parameterized) operations. > > e.g.scripts along the lines of: > > function drawfan(x,y,r) > i=45 > while (i<90) > if i.isEven() > color=red; > else > color=blue; > PublishedInterface.Drawline(x,y, x+r*sin(i), y+r*cos(i),color) > i++ > end while > > I want the 'worst case' a malicious script to be able to accompish to be > a program crash or hang.
The you migth want to think about not criplling the language, but the library - I'm not sure what has to be done to do that, but maybe these lines of thought help more - the "usual" thing for restricted execution was to provide it inside a otherwise fully working interpreter (like ZOPE). But I might be mistaken. Diez -- http://mail.python.org/mailman/listinfo/python-list
