1. EU script
- Posted by Chris Bensler <bensler at telus.net> Aug 12, 2001
- 482 views
Has anyone written an EU scripting engine? I didn't see it in the archives. I'm surprised in fact that there isn't one there already. It would solve quite a few problems. Like variable execution, dynamic includes, plugin applications. I have started on one, but I thought I would ask in case it's already out there somewhere and I overlooked it. Side note: What exactly is p-code? I know it's an intermediate language definition, to aid in speeding up the execution. But is there other reasons for using it? I'm already implementing p-code, but I just want to know if there's more I should be doing with it, So far, my script engine can process expressions. And I use the p-code, for the secondary, execution pass, and inlining literal expressions in the parser pass. What's the best way to handle routines? Should I inline them into the p-code? or should the p-code still call the routines? Or CAN I inline the routines? I can't wrap my brain around the concept of branching the p-code. Chris
2. Re: EU script
- Posted by Irv Mullins <irvm at ellijay.com> Aug 12, 2001
- 467 views
From: Chris Bensler <bensler at telus.net > Has anyone written an EU scripting engine? > I didn't see it in the archives. > I'm surprised in fact that there isn't one there already. > It would solve quite a few problems. > Like variable execution, dynamic includes, plugin applications. > > I have started on one, but I thought I would ask in case it's already out > there somewhere and I overlooked it. Chris: Have you thought about imbedding Lua? That's exactly what it was designed for, and Lua looks so much like euphoria it's spooky. Even down to the -- comments. Example follows: -------------------------------- -- 99 bottles of beer ~ Lua 4.0 -------------------------------- function bottle(n) if n==0 then return 'no more bottles' elseif n==1 then return '1 bottle' else return n..' bottles' end end n=99 while (n > 0) do print (bottle(n)..' of beer on the wall,') print (bottle(n)..' of beer.\nTake one down,\npass it around,') n = n - 1 print (bottle(n)..' of beer on the wall.\n') end Regards, Irv
3. Re: EU script
- Posted by Chris Bensler <bensler at telus.net> Aug 12, 2001
- 485 views
That does look very familiar, but my intention is to have a scripting engine that can execute any EU code file. including 'includes'... maybe, hmm, don't know yet.. So someone could effectively write a stand alone eu program and run it as a script. Chris > Have you thought about imbedding Lua? That's exactly what it was designed > for, > and Lua looks so much like euphoria it's spooky. Even down to the -- > comments. > Example follows: > > -------------------------------- > -- 99 bottles of beer ~ Lua 4.0 > -------------------------------- > function bottle(n) > if n==0 then return 'no more bottles' > elseif n==1 then return '1 bottle' > else return n..' bottles' > end > end > > n=99 > while (n > 0) do > print (bottle(n)..' of beer on the wall,') > print (bottle(n)..' of beer.\nTake one down,\npass it around,') > n = n - 1 > print (bottle(n)..' of beer on the wall.\n') > end > > Regards, > Irv >
4. Re: EU script
- Posted by Irv Mullins <irvm at ellijay.com> Aug 12, 2001
- 481 views
----- Original Message ----- From: Chris Bensler <bensler at telus.net> > That does look very familiar, but my intention is to have a scripting engine > that can execute any EU code file. > including 'includes'... maybe, hmm, don't know yet.. > So someone could effectively write a stand alone eu program and run it as a > script. Dave Cuny (I think) had a Euphoria interpreter written in Euphoria. Maybe it's still in the archives. I believe it was fairly slow, being an interpreter running in an interpreted language. Regards, Irv