How Would I Use String:Find() To Accomplish This?

I'm making chat commands, and I'm trying to print text that is between two double quotes, as shown in the script below.

admins = {
    ["alienantics"] = true;
};

game.Players.PlayerAdded:connect(function(player)
    if admins[player.Name] then
        player.Chatted:connect(function(msg)
            if msg:sub(1, 7) == "-print " then -- player would type in something like -print "this is text"
                local text_marker = '"';
                local start, finish = msg:find(text_marker);

                print(msg:sub(start + 1));
            end
        end)
    end
end)

Now, if I wrote that code correctly it should print something along the lines of...

this is text"

But you may notice that the last double quote is printed, which I do not want. I'm not sure exactly how to go about solving this. As much as I love programming, logical thinking and breaking things down still proves difficult for me at times.

The problem here is that the find function only finds the first occurrence of a pattern in a string. In your case, you have two occurrences of the quotation marks, so only the first one is indexed.

I would recommend not using quotation marks as your starting and stopping point at all actually. There are a few situations I could think of where the results would not match the intended message. For instance, what if there were quotation marks inside of the starting and stopping quotations? The text -print "He said "hey" to me" would result in the output He said .

To fix this, you could use the function string.sub to indicate the starting and stopping point of a string. Your resulting code would be as follows:

admins = {
    ["alienantics"] = true;
};

game.Players.PlayerAdded:connect(function(player)
    if admins[player.Name] then
        player.Chatted:connect(function(msg)
            if msg:sub(1, 7) == "-print " then -- player would type in something like -print "this is text"
                print(string.sub(msg, 9, -2));
            end
        end)
    end
end)

The line print(string.sub(msg, 9, -2)) extracts a part of the string from the 9th character to the -2nd character. The negative indices -2 counts from the end of the string (index -1 refers to the last character in a string, -2 to the previous one, and so on). This will allow anyone typing a message to use quotation marks inside of their message without the output returning a sliced version of the text.

If I helped in any way, please give thanks by upvoting my answer. If you have any further questions, feel free to comment below.