WoW API / Lua - Math.Random(#,#) - lua

Question

Always feel like I'm making something far more complicated than it has to be. I'm currently playing around with the WoW addon, Tongues, in hope of make a custom dialect filter - which is quite easy of course, very noob-friendly. At this point, there is one thing I want to accomplish-- something of which feels to have the implications far beyond this -- that is just novelty, but before I give up completely (lots of hours trying different things with no headway) I was hoping someone could come by, get a cheap laugh and perhaps help me fix this if they understand my point. And who knows, posting this new helpless questions might bump me up to being able to finally upvote!
Tongues.Affect["Drunk"] = {
["substitute"] = {
[1] = merge({
{ ["([%a]+)(%A*)$"] = "%1 ...hic!"},
Tongues.Affect["Slur"]["substitute"][1]
});
};
["frequency"] = 100;
};
What this does is simply add on the "...hic!" to sendchatmessage(); I believe it is. The frequency part seems completely broken and only the GUI slider in the game matters for that. What I was hoping to accomplish was to repurpose this and make the "...hic!" an actual randomized word. Since the mod itself handles the chance that it happens, I figured all that is needed left is to replace the string with a function=X. It's, of course, intensely way over my head, but despite checking the Lua of several mods, nothing feels like "it will fit."
The best I could come up with,
Tongues.Affect["TESTAFFECT"] = {
["substitute"] = {
[1] = merge({
{ ["([%a]+)(%A*)$"] = function(b)
local rand = Math.Random(1,2)
if (rand == 1) then
b = "test1"
return b
elseif (rand == 2) then
b = "test2"
return b
end
end
Leaves a gloriously useless message in the error mod BugSack - of course my attempt is wrong, but there's no way to know how!
I'm assuming this is enough information - as I said, very user friendly mod without any need to understand how it really works (Although I'd love to ready study it after this "project")
Anyone? Regardless, thank you for your time in simply even reading this far.
Update: Downvotes, okay! That's cool too. A little unpredictable, but sure. The error is as follows
15x Tongues\Core\dialects.lua:172: attempt to index field 'Affect' (a nil value)
Tongues\Core\dialects.lua:172: in main chunk
Locals:
175 in dialects.lua is
Tongues.Affect["Wordcut"]["substitute"][1],
Which has nothing to do with what I'm trying to accomplish, and works just fine.

Answer 1

Sorry that my question was an inconvenience. I asked to the best of my ability and the best of my ability to articulate the question proved to be less then stellar. The example codes I had provided were the only way I could articulate showing what I was trying to do.
I was misinterpreting the error frame and discovered that behind the useless stack that calls an error where there is, in fact, none, is a stack that calls the error in syntax at the time that broke it.
I'm sharing my results, regardless if the community finds this useless. I learned a tremendous amount from this personally, which is the only incentive in that I asked for help.
Tongues.Affect["TEST"] = {
["substitute"] = {
[1] = {
["([%a]+)"] = function(a)
return a
end;
["(%A*)$"] = function(a,b)
local rand = math.random(1,2)
if (rand == 1) then
b = "test1"
return b
end;
if (rand == 2) then
b = "test2"
return b
end;
end;
};
};
};
Hope it helps someone out there - as expected, I made it more complicated than it had to be. Simply "jiggling" the symbols is all that was needed.