allowed characters fo string.match

[IIYAMA]

local reactionCharacters = {"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", 
 "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"} 
  
local reactionSpecialCharacters = { 
    "!","@","~","&","#","$","%","*","?","+","-","_" 
    --[[,"^",,"`" 
    ,"(",")",,,"=","{","}","[","]",";",":","'",'"',"|","<",",",">",".","/",]] 
} 

local function playerChat(message, messageType) 
    if messageType == 0 then --Global (main) chat 
        if newReaction then 
            if string.match(message,newReaction) then 
                outputChatBox("Good result.") 
                cancelEvent() 
            end 
        end 
    end 
end 
addEventHandler("onPlayerChat", root, playerChat) 

I am trying to make a reaction system.

But with some characters math.match don't work.

Does anybody knows which ones don't work?

Thank you very much.

[botder]

That happens because e.g. "%" is a part of a pattern

http://lua-users.org/wiki/PatternsTutorial

[IIYAMA]

It is only that character which causes this problem?

[botder]

http://wiki.roblox.com/index.php?title=String_pattern

Check that page out

[IIYAMA]

That are a lot of characters.

Is there a way to disable the function of the special characters while comparing?

[botder]

You can escape the special characters with a "%" prefix (e.g. "%%s", "%%", "%.")

[IIYAMA]

I understand now what you mean.

Except how do I know which characters do I have to ignore?

string.gsub is also using these special characters, so I can't replace them using that.