live lua demo - ideas for extending

[David Manura <dm.lua@...>]

Here's some ideas for extending the online Lua demo (
http://www.lua.org/cgi-bin/demo ).  Make it an AJAX-like application so that it
mimics the Lua command interpreter.  Maybe add IntelliSense and syntax
highlighting as well.  Virtualize the I/O layer: replace fopen/fread/fwrite C
library calls in the Lua VM with functions that access a virtual file system in
memory (rather than simply removing the I/O functions as done in the current
sandbox).  Allow a certain set of known URLs (e.g. code on the lua-users wiki)
to be appended to package.path so that modules can be retrieved over the
Internet via "require" and run in the sandbox.  This shouldn't be particularly
difficult, though I don't feel like doing this myself, but if anyone else wants
to pick up the idea, I think it would be a useful project.