String concatenation + "any character"

[ScripterQQ 89]

I was thinking, instead of writing something like

if UnitBuff("player","Seal of Light")
or UnitBuff("player","Seal of Wisdom")
and so on..

Is it possible to do something like

if UnitBuff("player","Seal of"*) ?

I did some google search and the "." is used to match any character (like when comparing some strings), but I don't see it working with string concatenation

For example, in my case I should write something like

if UnitBuff("player","Seal of"...)

because ".." separates text from variables, and "." should be the "any character", but clearly this isn't the right way to do what I want to do.

Any idea? Thanks!

[Matenia 628]

UnitBuff doesn't allow for regex afaik. Just iterate all buffs and use string.match or w/e the Lua function is on each name to do a partial match. 
In Lua ".." concatenates 2 strings. If you want to use a "." in regex without it representing any character, you can escape it using "\"

[ScripterQQ 89]

Oh okay no problem. I will do the string.match, I just wanted to make the code more compact and easier, but I guess I have no choice!
Thanks for the help as always @Matenia ?