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ian@bickiia.earlhall.earlham.edu writes: > > It does seem like a virtual machine could be a better way to support > language-neutral scripting, though. Not to imply JVM or something, > but a simple (non-optimized) virtual machine designed for untyped > dynamically-bound languages (which describes scripting languages > fairly well). Is anyone still trying to allow RScheme to be > interchanged with Guile (as it has underlying bytecodes)? > I've heard that SCM, the interpreter Guile is derived from, beats all bytecode-based implementations on speed. I find this a bit surprising since a byte-compiler could optimize the code in various ways, but tests seem to show it's true. Making an adequately performing translator isn't the issue really; the hard part is making different languages play nice together. It's getting to the point where I am starting to doubt this is truly possible for the full set of today's popular scripting languages. > lindex done with strings will be linear time, though. This is > probably much worse than having a linear time lappend. > Tcl people lived with it for years... - Maciej