Prevent replacement of { and } in chat.format

[zford]

This is a refinement of the combination of these two pull requests. It performs the same functionality, but doesn't require gross regex to pull off.

#284
#285

[snowleo]

Please explain (?<='[{}]{0,99})([{}])''('*)(?=[{}]') what do you expect it to do

[khobbits]

I was thinking something like this instead:

            format = Util.replaceFormat(format);
            format = format.replace("'", "''");
            format = format.replace("{DISPLAYNAME}", "%1$s");
            format = format.replace("{GROUP}", "{0}");
            format = format.replace("{MESSAGE}", "%2$s");
            format = format.replace("{WORLDNAME}", "{1}");
            format = format.replace("{SHORTWORLDNAME}", "{2}");
            format = format.replaceAll("\\{(\\D*?)\\}", "'\\{$1\\}'");
            format = "§r".concat(format);
            mFormat = new MessageFormat(format);

[zford]

Your code doesn't handle edge case of unmatched braces.

My code produces extra quotes when you have two braces next to each other.

ie

{}} produces '{''}''}' when it should be '{}}'. That regex removes those extra braces.