ereg_replace aka regexp in jsp

[Carsten Rasmussen]

Can somebody tell me how to do a textreplacement with some kind of command.

String str = "This is a dummy string";
// then replace dummy with <b>dummy</b> and print the string
out.print (str);

In php we do rex like this:

$link = "http://coderanch.com";
echo ereg_replace("(http\:\/\/([A-Z0-9a-z]+)\.[A-Za-z]{2,5})", "<a >\\1</a>", $link);

Can it be done in JAVA Servlet or JSP.
And now we are at it is there command in jsp to strip HTML code.

Please help me.

[Sebastian Janisch]

how about

str = str.replace("dummy", "<b>dummy</b>")

[Carsten Rasmussen]

Its more like a regexp im looking for.

[Sebastian Janisch]

Just saw that this is a jsp related questions.

Check how this tag library works:

<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

http://www.j2ee.me/products/jsp/jstl/1.1/docs/tlddocs/fn/tld-summary.html

[Sebastian Janisch]

Carsten Rasmussen wrote:Its more like a regexp im looking for.

Why would you engage the heavy regex engine if a simple replace does just fine ?

[Bear Bibeault]

You have done a poor job at explaining what it is you are looking for. Perhaps another post clearly explaining what you are after would be useful?

[Carsten Rasmussen]

There it is. is that good enough. ???

[Carsten Rasmussen]

I googled and googled and more google then i came to this solution:

String mess = "test http://coderanch.com test";

// this is how i stripped html tags.
mess = mess.replaceAll("\\<.*?>", ""); 

// make links out of http://???.???
Pattern p = Pattern.compile("http.*\\.[A-Za-z]{2,6}");
Matcher m = p.matcher(mess);
while ( m.find() )
String link = mess.substring(m.start(),m.end());
{ mess = mess.replace(link, "<a target='_blank'    rel="nofollow">" + link + "</a>"); }

// Write the data
out.println (mess);

Gat it working from 2 or 3 examples put together and it does work ( very proved ) did the regexp by myself.
Still open for better solutions.

??? Something wrong with code block

[Carsten Rasmussen]

May i change the link regexp to:

String regexp = "(http\\:\\/\\/[[:alnum:][:punct:]^\\S]+)";
Pattern p = Pattern.compile(regexp); 
Matcher m = p.matcher(msg); 
while ( m.find() ) 
{   
      String link = msg.substring(m.start(),m.end()); 
      msg = msg.replace(link, "<a  target=_blank rel="nofollow">" + link + "</a>");  
} 

That wil make http://blablabla untill space to a link.