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Posted to jira@arrow.apache.org by "Uwe Korn (Jira)" <ji...@apache.org> on 2020/06/30 12:56:00 UTC
[jira] [Commented] (ARROW-9268) [C++] Add is{alnum,alpha,...}
kernels for strings
[ https://issues.apache.org/jira/browse/ARROW-9268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17148639#comment-17148639 ]
Uwe Korn commented on ARROW-9268:
---------------------------------
Started to build the foundation for str->bool in https://github.com/apache/arrow/pull/7593.
> [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
> Priority: Major
>
> 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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