Lua word search

How would I go about doing a multiple pattern search in Lua? (I have Lpeg set up).

For example, say I'm receiving strings in a row, I'm processing one at a time, captalizing them and calling them msg. Now I want to get msg and check if it has any of the following patterns: MUFFIN MOOPHIN MUPHEN M0FF1N for a start. How can I check if msg has any of those (doesn't matter if it's more than one) whithout having to write a huge if(or or or or)?

One thing you could do is make a table of words you want to look for, then use gmatch to iterate each word in the string and check if it's in that table.

#!/usr/bin/env lua

function matchAny(str, pats)
    for w in str:gmatch('%S+') do
        if pats[w] then
            return true
        end
    end
    return false
end

pats = {
    ['MUFFIN']  = true,
    ['MOOPHIN'] = true,
    ['MUPHEN']  = true,
    ['M0FF1N']  = true,
}

print(matchAny("I want a MUFFIN", pats)) -- true
print(matchAny("I want more MUFFINs", pats)) -- false