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➜ MUSHclient
➜ Lua
➜ Useful calculator Alias
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| Posted by
| Nick Gammon
Australia (23,173 posts) Bio
Forum Administrator |
| Date
| Reply #30 on Wed 25 Aug 2010 05:32 AM (UTC) Amended on Wed 25 Aug 2010 05:33 AM (UTC) by Nick Gammon
|
| Message
|
David Haley said:
Just wait until people want to assign results to temporary variables... ;)
Well, you can't for a couple of reasons.
First there is a return statement, so if you try something like this:
You get this:
[string "Alias: "]:2: [string "return a=5"]:1: '<eof>' expected near '='
Second, because of the setfenv it is effectively sandboxed from the main script space, so you wouldn't be able to affect it anyway.
So my comment to that is, if you want to assign stuff, use Ctrl+I to do immediate evaluations of scripts.
But if you just want to evaluate an expression and print the result in a single, smooth, action, use the calculator. |
- Nick Gammon
www.gammon.com.au, www.mushclient.com | | Top |
|
| Posted by
| Twisol
USA (2,257 posts) Bio
|
| Date
| Reply #31 on Wed 25 Aug 2010 05:45 AM (UTC) Amended on Wed 25 Aug 2010 05:46 AM (UTC) by Twisol
|
| Message
| Assuming you have access to newproxy and the debug table - which the plugin-ified alias doesn't - you can get the environment of a newproxy() userdata, which is the global environment.
debug.getfenv(newproxy(false))
It's an interesting little jailbreak. |
'Soludra' on Achaea
Blog: http://jonathan.com/
GitHub: http://github.com/Twisol | | Top |
|
| Posted by
| David Haley
USA (3,881 posts) Bio
|
| Date
| Reply #32 on Wed 25 Aug 2010 02:12 PM (UTC) Amended on Wed 25 Aug 2010 02:30 PM (UTC) by David Haley
|
| Message
| | I know you can't assign to temporaries using the current system... that's why it was meant to be a joke based on what could be called feature creep on a simple math calculator. :-) |
David Haley aka Ksilyan
Head Programmer,
Legends of the Darkstone
http://david.the-haleys.org | | Top |
|
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