Question

I have a textarea on a page which I use for receiving keywords from a user so that frequencies in text documents can be calculated.

At the moment however, if a user specifies keywords on different lines, e.g:

dale
farm
evictions

Only the server, carriage returns and line breaks are preserved. So for the three keywords above, my servlet receives:

dale
farm
evictions

What is the best way to get rid of the carriage returns and line breaks? Is it best to scan and replace them by a space which is the delimiter the page requests of the user?

Thanks

Mr Morgan.

        String s1 = "mr morgan\r\nis a fool"; 
        String s2 = s1.replaceAll("[\n\r]", " "); 
        System.out.println(s2); 

Seems to give me what I want. Thanks to the respondents.

Answer 1

What have you tried so far?

You have to explode() the text by newlines (\n):

$keywords = $_POST['keywords'];
$keywords = explode("\n", $keywords);
// $keywords is now an array

If the keywords are separated by a comma:

$keywords = $_POST['keywords'];
$keywords = explode(',', $keywords);
// $keywords is now an array

And for <meta name="keywords" /> you have to replace all newline characters by a comma

$keywords = $_POST['keywords'];
$keywords = str_replace("\n", ', ', $keywords);

Working example: http://codepad.org/r0tZtXwb