如何使用 xquery 从文本中删除表情符号

Question

I have a $text = "Hello üäö$"

I wanted to remove just emoji's from the text using xquery . How can i do that?

expected result: "Hello üäö$"

i tried to use:

replace($text, '[^\x00-\xFFFF]', '')

but didn't work.

Thanks in advance:)

Answer 1

To replace emoji, you can make use of XPath's support for Character Class Escapes , specifically Category Escapes, to match named Unicode blocks:

replace("Hello 😀😃😄 üäö$", "\p{IsEmoticons}+", "")

This returns the expected result:

Hello  üäö$