[
https://issues.apache.org/jira/browse/HBASE-18075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16018592#comment-16018592
]
Josh Elser commented on HBASE-18075:
------------------------------------
bq. I suppose I should look at patch...
Haha :)
bq. Is IsAlphabetic in regex same as
I would assume that isAlphabetic *should* preclude all of these, but I haven't
dug into the implementation. It's definitely not straightforward to interpret
from the code itself (there's some fun bitshifting going on). Most of these
points are just garbage unprintable characters, but zookeeper does saw some
(7F-9F) "don't display well or are confusing".
I'll whip up a quick test and remove if the explicit checks are unnecessary.
That's the easiest way forward.
> Support namespaces and tables with non-latin alphabetical characters
> --------------------------------------------------------------------
>
> Key: HBASE-18075
> URL: https://issues.apache.org/jira/browse/HBASE-18075
> Project: HBase
> Issue Type: Improvement
> Components: Client
> Reporter: Josh Elser
> Assignee: Josh Elser
> Fix For: 2.0.0
>
> Attachments: HBASE-18075.001.patch, HBASE-18075.002.patch
>
>
> On the heels of HBASE-18067, it would be nice to support namespaces and
> tables with names that fall outside of Latin alphabetical characters and
> numbers.
> Our current regex for allowable characters is approximately
> {{\[a-zA-Z0-9\]+}}.
> It would be nice to replace {{a-zA-Z}} with Java's {{\p\{IsAlphabetic\}}}
> which will naturally restrict the unicode character space down to just those
> that are part of the alphabet for each script (e.g. latin, cyrillic, greek).
> Technically, our possible scope of allowable characters is, best as I can
> tell, only limited by the limitations of ZooKeeper itself
> https://zookeeper.apache.org/doc/r3.4.10/zookeeperProgrammers.html#ch_zkDataModel
> (as both table and namespace are created as znodes).
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
