Question with string.find

[Rdenzaci]

I'm using string.find to find operators in a string, here is what I have:

[lua]errlist = {"/+",
"//",
"/-",
"/*",
"*/",
"*-",
"**",
"*+",
"-*",
"-/",
"+*",
"+/"}

function errorcheck(str)
for k, v in pairs(errlist) do
if(string.find(str, v)) then
string = "ERROR"
end
end
end
[/lua]

But when I only put in a + or - and no other operator, it still changes the text to ERROR, which is not what I want, I only want the ones in the table to be changed to error. One guess is that the * are acting as wildcards and I don't know how to make it where that won't happen anymore, because I don't want it to. Any clues on how to fix this?

[JetBoom]

string.find(str, v, 1, true) to not use regular expressions.

[Rdenzaci]

Thanks JetBoom that worked.