Replacing xml tag value by regex [duplicate]

Question

I have xml like this and i want to replace carrot tag value by something else i use this expression (<.[^(><.)]+>) but it doesn't work properly what should i change to manage getting value and replacing it with new value?:

<Monkey xmlns="http://urlhere.com/monkeynamespace">
 <foodType>
  <vegtables>
   <carrots>1</carrots>
  </vegtables>
 <foodType>   
</Monkey>

TH̘Ë͖́̉ ͠P̯͍̭O̚N̐Y̡ H̸̡̪̯ͨ͊̽̅̾̎Ȩ̬̩̾͛ͪ̈́̀́͘ ̶̧̨̱̹̭̯ͧ̾ͬC̷̙̲̝͖ͭ̏ͥͮ͟Oͮ͏̮̪̝͍M̲̖͊̒ͪͩͬ̚̚͜Ȇ̴̟̟͙̞ͩ͌͝S̨̥̫͎̭ͯ̿̔̀ͅ — Tom Lord
– Tom Lord, Commented Oct 4, 2017 at 10:52
i want to make it in nifi replaceText processor and it doesn't support xpath i, i use java — Sagitarius
– Sagitarius, Commented Oct 4, 2017 at 11:01
Don't parse XML using regex; use a real XML parser. See How to retrieve element value of XML using Java? or How to read XML using XPath in Java — kjhughes
– kjhughes, Commented Oct 4, 2017 at 15:53

The fourth bird · Accepted Answer · 2017-10-04 11:03:51Z

9

You could use a positive lookahead and a positive lookbehind

Example:

(?<=<carrots>).*(?=<\/carrots>)

Demo

answered Oct 4, 2017 at 11:03

The fourth bird

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3 Comments

koo9 Over a year ago

this will fail if there is another </carrots> down the string

himawan_r Over a year ago

need to add another handle, if there is multiple carrots on the string

The fourth bird Over a year ago

That is correct. In that case you should make it lazy using .*?

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