pitrou commented on PR #39264:
URL: https://github.com/apache/arrow/pull/39264#issuecomment-1881379139
Sorry for the delay here.
If we want these semantics, we should make sure that non-ASCII data works as
expected for utf8 strings:
```python
>>> "àà".replace("", "z")
'zàzàz'
```
I'm not sure the current code ensures this...
An alternative would be to simply return an error if the pattern is empty.
What do you think @wjones127 @jorisvandenbossche ?
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