[Jonesy96]

The only way to do it would be to have lots of formats to my best knowledge.

E.g.:

Code:

format(string,sizeof(string),"ItemData("idx[%d]", item_idx);
format(string,sizeof(string),"%sName[%s]", string, Item[item_idx][Name]);
format(string,sizeof(string),"%sInfo[%s]", string, Item[item_idx][Info]);
//and so on...