CODEWITHSUNDEEP
lua
Ron
Ron

Reputation: 175

Lua string inside variable reference

Is there any way to "concatenate" variable references with strings?:

fat_greek_wedding = 0;
nationality = "greek";

"fat_" .. nationality .. "_wedding" = 1; -- fat_greek_wedding == 1

Or perhaps something like:

fat_greek_wedding = 0;
nationality = "greek";

fat_(nationality)_wedding = 1; -- fat_greek_wedding == 1

FYI I am writing code for Unified Remote, which uses Lua: https://github.com/unifiedremote/Docs

Upvotes: 3

Views: 2321

Answers (2)

Vlad
Vlad

Reputation: 5867

Global variables, or fields of structures - are just elements of some table, and variable's name is a text key in that table.

If that fat_greek_wedding is a global variable, you can access it like this:

fat_greek_wedding = 0;
nationality = "greek";

_G["fat_" .. nationality .. "_wedding"] = 1;

Here you explicitly access global environment, altering/creating element by the name that was constructed in run time. Effectively it is the same as running fat_greek_wedding=1

Upvotes: 7

R. Gadeev
R. Gadeev

Reputation: 188

Try this:

loadstring("fat_"..nationality.."_wedding = 1")()

Upvotes: -2

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