I was just wondering if someone might be able to explain string lists and how they work for zMud. as well as the %eval() commands, and the whole additem, delitem, etc and so forth. I have always been wondering that, I learned a ton of the functions on my own, but I have never really been able to easily understand the way zMud help files explain things. Anyone have any idea on how to help me with this little issue?

A string list variable is a list of strings separated by a | delimiter. When you use #ADDITEM on a variable, it tacks a string onto the end of the list, but only if it's not already on the list. When you use #DELITEM on a variable, it removes the string from the list, no matter where it is in the ordering. The %additem function is useful for adding multiple copies of a string, and it returns the newly updated string list as it's return value. %delitem has similar functionality.



The %eval function is just for forcing expansion of some expression. There are places in zScript where something like '@myvar - 20' would be treated as a literal string and just echo whatever's in @myvar and then ' - 20' behind it. You can put this inside a %eval call to subtract 20 from @myvar and return a numerical result.

Zarquan just made my head explode. But it somehow made sense. Can you give a realworld example of how this would be used though? Just so that I can truly wrap my head around the idea of -using- stringlists and such.

Afflictions variable is now "stupidity|prone|dementia"

Checks 'afflictions' stringlist and cures stupidity if 'stupidity' is in the variable.

Afflictions variable is now "stupidity"

Afflictions variable is now empty.

Here's a very simple example of a good way to use a stringlist:



Easy way to send a message to all the people on a list.