What am I missing?

#WORLD4CH'S POST FORMATTING GUIDE
[b] bold example
[u] underline example
[i] italic example
[o] overline example
[s] strikethrough example
[m] courier text example
[code] preserves syntax for code and colors text
For green text in code put a word in quotes "example"
for red put a # before the word #example
[spoiler] for spoilers example
[sup] makes text progressively smaller higher on the line ^{example example}
[sub] makes text progressively smaller lower on the line _{example example}
[sup] and [sub] can be used for nesting too
[aa] For SJIS art. example
For ASCII art use [m] tag.
To quote put "> " on a new line, ignore the quotations but do keep the space.everything typed on that line will be quoted
example
To multiquote put a space after the '>'s below"
>first line[o]
other
lines
then
>[/o]
It becomes;
first line
then
other
lines
then

To do epic quotes add a space after the '>'s below:
>I'm[o]
>a[o]
>expert[o]
>quote[o]
[/o]lol[/o]lol[/o]lol[/o]
It becomes:
I'm
a
epic
quote
lollollol

[#] Ignores all BBcode tags inside it
[rem] hides all text inside it
[br] gives you a line break. Don't close this tag

>>3
Epic Win!!!
  var CPP_KEYWORDS = "abstract bool break case catch char class const " +
    "const_cast continue default delete deprecated dllexport dllimport do " +
    "double dynamic_cast else enum explicit extern false float for friend " +
    "goto if inline int long mutable naked namespace new noinline noreturn " +
    "nothrow novtable operator private property protected public register " +
    "reinterpret_cast return selectany short signed sizeof static " +
    "static_cast struct switch template this thread throw true try typedef " +
    "typeid typename union unsigned using declaration, directive uuid " +
    "virtual void volatile while typeof";
  var CSHARP_KEYWORDS = "as base by byte checked decimal delegate descending " +
    "event finally fixed foreach from group implicit in interface internal " +
    "into is lock null object out override orderby params readonly ref sbyte " +
    "sealed stackalloc string select uint ulong unchecked unsafe ushort var";
  var JAVA_KEYWORDS = "package synchronized boolean implements import throws " +
    "instanceof transient extends final strictfp native super";
  var JSCRIPT_KEYWORDS = "debugger export function with NaN Infinity";
  var PERL_KEYWORDS = "require sub unless until use elsif BEGIN END";
  var PYTHON_KEYWORDS = "and assert def del elif except exec global lambda " +
    "not or pass print raise yield False True None";
  var RUBY_KEYWORDS = "then end begin rescue ensure module when undef next " +
    "redo retry alias defined";
  var SH_KEYWORDS = "done fi";
  var LISP_KEYWORDS = "defun";
I hacked this from 4chan last year. Have fun, it is the list of words that appear in either blue (lowercase) or purple (uppercase).
Also this:
    var preceders = [
        "!", "!=", "!==", "#", "%", "%=", "&", "&&", "&&=",
        "&=", "(", "*", "*=", /* "+", */ "+=", ",", /* "-", */ "-=",
        "->", /*".", "..", "...", handled below */ "/", "/=", ":", "::", ";",
        "<", "<<", "<<=", "<=", "=", "==", "===", ">",
        ">=", ">>", ">>=", ">>>", ">>>=", "?", "@", "[",
        "^", "^=", "^^", "^^=", "{", "|", "|=", "||",
        "||=", "~", "break", "case", "continue", "delete",
        "do", "else", "finally", "instanceof",
        "return", "throw", "try", "typeof"
        ];
    var pattern = '(?:' +
      '(?:(?:^|[^0-9\.])\\.{1,3})|' +  // a dot that's not part of a number
      '(?:(?:^|[^\\+])\\+)|' +  // allow + but not ++
      '(?:(?:^|[^\\-])-)'  // allow - but not --