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➜ MUSHclient
➜ Lua
➜ Problem with loadstring and serializing tables
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Problem with loadstring and serializing tables
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It is now over 60 days since the last post. This thread is closed.
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| Posted by
| Mentallaxative
(3 posts) Bio
|
| Date
| Sun 23 Dec 2007 03:25 PM (UTC) |
| Message
| Hi there,
I'm trying to make a Lua plugin that counts the number of different animals I hunt on the mud I play. There are well over 100 of them so I thought I would try placing them all into a table.
I've run into a problem with loading the serialized table back during OnPluginInstall.
I get the error:
Description: [string "Plugin"]:147: [string "{..."]:1: unexpected symbol near '{'
stack traceback:
[C]: in function 'assert'
[string "Plugin"]:147: in function <[string "Plugin"]:145>
Called by: Function/Sub: OnPluginInstall called by Plugin Hunt_Counts
Reason: Executing plugin Hunt_Counts sub OnPluginInstall
The two functions in question are:
function OnPluginInstall ()
hunt={}
assert (loadstring (GetVariable ("hunt") or "")) ()
end -- OnPluginInstall
function OnPluginSaveState ()
require "serialize"
SetVariable ("hunt", serialize.save_simple (hunt))
end -- OnPluginSaveState
The { in [string "{..."] is referring to the serialized variable, which is something like
{
["Yellow Alligator"] = 1,
}
which I found out using GetPluginVariable. | | Top |
|
| Posted by
| Nick Gammon
Australia (23,165 posts) Bio
Forum Administrator |
| Date
| Reply #1 on Sun 23 Dec 2007 07:23 PM (UTC) |
| Message
| The serialize.save_simple does not save a variable name, as it doesn't know it (you are passing a table address, not a variable name).
Thus you need to put it back at one end or the other. One way would be:
SetVariable ("hunt", "hunt = " .. serialize.save_simple (hunt))
Or, when you load it back:
assert (loadstring ("hunt = " .. GetVariable ("hunt") or " {}")) ()
(But don't do both). |
- Nick Gammon
www.gammon.com.au, www.mushclient.com | | Top |
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