求一正则表达式

求一正则表达式,字符内容是这样的
[code="java"]String s = "

";[/code]
需要匹配所有的有style标签,但是不匹配img标签里面的style标签。应该如何写呢?
[code="java"]
Pattern pattern = Pattern.compile("?");
Matcher matcher = pattern.matcher(s);
while(matcher.find()){
    }

[/code]

(?! .*?最小贪婪匹配
[code="java"]
String s = "

";
Pattern pattern = Pattern.compile("(?!");
Matcher m = pattern.matcher(s);
while(m.find()){
System.out.println(m.group());
}

[/code]