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Java regex for highlighting XML tags, but not for tag content

I have the following Java code:

str = str.replaceAll("<.*?>.*?</.*?>|<.*?/>", "");

This turns the line like this:

 How now <fizz>brown</fizz> cow.

IN:

 How now cow.

However, I want it to simply separate the <fizz> and </fizz> tags or just standalone </fizz > tags and leave the content of the element separately. So, a regex that would turn this into:

 How now brown cow.

Or using a more complex string that turns:

 How <buzz>now <fizz>brown</fizz><yoda/></buzz> cow.

IN:

 How now brown cow.

I tried this:

 str = str.replaceAll("<.*?></.*?>|<.*?/>", "");

And it does not work at all. Any ideas? Thanks in advance!

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6 answers
 "How now <fizz>brown</fizz> cow.".replaceAll("<[^>]+>", "")
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You were almost there;)

Try the following:

 str = str.replaceAll("<.*?>", "")
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You can also try:

 str = str.replaceAll("<.*?>", "");

Please see the example below for a better understanding:

 public class StringUtils { public static void main(String[] args) { System.out.println(StringUtils.replaceAll("How now <fizz>brown</fizz> cow.")); System.out.println(StringUtils.replaceAll("How <buzz>now <fizz>brown</fizz><yoda/></buzz> cow.")); } public static String replaceAll(String strInput) { return strInput.replaceAll("<.*?>", ""); } }

Output:

 How now brown cow. How now brown cow.
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As long as there are other correct answers, none of them give any explanation.

The reason your regular expression <.*?>.*?</.*?>|<.*?/> Does not work is because it will select any tags , as well as everything inside them . You can see that in action on debuggex .

The reason your second attempt <.*?></.*?>|<.*?/> Does not work is because it will select from the beginning of the tag to the first closing tag after the tag . This is a sip of sorts, but you can better understand what is going on in this example .

The regular expression you need is much simpler: <.*?> . It simply selects each tag, ignoring open / close. Visualization .

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It is not elegant, but easy to follow. The code below removes the start and end XML tags if they are present in the string together

<url>"www.xml.com"<\url>, <body>"This is xml"<\body>

Regular expression:

 to_replace='<\w*>|<\/\w*>',value=""
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If you want to parse the XML log file so that you can use the regular expressions {java}, <[^<]+< This way you get <name>DEV</name> . Print as name> DEV. You should just play with REGEX.

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