Maarten Breddels created ARROW-9268:
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Summary: [C++] Add is{alnum,alpha,...} kernels for strings
Key: ARROW-9268
URL: https://issues.apache.org/jira/browse/ARROW-9268
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Maarten Breddels
Assignee: Maarten Breddels
A good list of kernels to have would str->bool kernels, similar to:
[https://docs.python.org/3/library/stdtypes.html#str.isalnum] and friends.
I think all but `isidentifier` make sense to have. The semantics of the Python
functions seem quite reasonable to have in Arrow, but maybe others can provide
feedback if this is a complete/reasonable list to have or not.
I am not sure if we need more (or less) functions, or if we want more atomic
functions, e.g. test for membership in Unicode categories.
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