Shoutbox

I had a go at it, but my mind isn't working very well today so the following is most likely highly inefficient.

code:

---

function OnEvent_ChatWndSendMessage(pChatWnd, sMessage){
     return punctuate(sMessage);
}

function punctuate(s)
{
    var sentences = s.split(" ");
    for (var i = 0; i < sentences.length; i++)
    {
        if (i == sentences.length - 1 && isin(sentences[i].charAt(sentences[i].length - 1), "abcdefghijklmnopqrstuvwxyz0123456789"))
            sentences[i] =  sentences[i] + ".";
        if (i == 0)
            sentences[i] = sentences[i].charAt(0).toUpperCase() + sentences[i].substr(1);
        else
            if (isin(sentences[i-1].charAt(sentences[i-1].length - 1), ".?!"))
                sentences[i] = sentences[i].charAt(0).toUpperCase() + sentences[i].substr(1);
    }
    return sentences.join(" ");
}

function isin(needle, haystack)
{
    for (var i = 0; i < haystack.length; i++)
        if (haystack.charAt( i ) == needle)
            return true;
    return false;
}

---

If it's easier to read/copy/paste I pastebinned it:

http://pastebin.ca/75734