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https://issues.apache.org/jira/browse/AVRO-3897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17782086#comment-17782086
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ASF subversion and git services commented on AVRO-3897:
-------------------------------------------------------

Commit f9c5a2fb946e1bc867e60fbd9152d78dbfd235e4 in avro's branch 
refs/heads/branch-1.11 from Kousuke Saruta
[ https://gitbox.apache.org/repos/asf?p=avro.git;h=f9c5a2fb9 ]

AVRO-3897: [Rust] Disallow invalid namespace in fully qualified name for Rust 
SDK (#2570)

* AVRO-3897: [Rust] Disallow invalid namespace in fully qualified name for Rust 
SDK

* AVRO-3897: [Rust] Cleanup the test code

Signed-off-by: Martin Tzvetanov Grigorov <mgrigo...@apache.org>

* AVRO-3897: [Rust] Add a test case showing that name[space]s could be only 
underscores

Signed-off-by: Martin Tzvetanov Grigorov <mgrigo...@apache.org>

---------

Signed-off-by: Martin Tzvetanov Grigorov <mgrigo...@apache.org>
Co-authored-by: Martin Tzvetanov Grigorov <mgrigo...@apache.org>
(cherry picked from commit e8f48a98bcd3b2c3772a604847ce57eb9903a72c)


> Disallow invalid namespace in fully qualified name for Rust SDK
> ---------------------------------------------------------------
>
>                 Key: AVRO-3897
>                 URL: https://issues.apache.org/jira/browse/AVRO-3897
>             Project: Apache Avro
>          Issue Type: Bug
>          Components: rust
>            Reporter: Kousuke Saruta
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Currently, the Rust SDK allows the following fully qualified names with 
> Name::new.
> {code}
> Name::new("ns.0.record1")
> Name::new("ns..record1")
> {code}
> But they should be disallowed according to the specification.
> https://avro.apache.org/docs/1.11.1/specification/#names
> {code}
> The name portion of the fullname of named types, record field names, and enum 
> symbols must:
> start with [A-Za-z_]
> subsequently contain only [A-Za-z0-9_]
> {code}
> {code}
> The null namespace may not be used in a dot-separated sequence of names. So 
> the grammar for a namespace is:
>   <empty> | <name>[(<dot><name>)*]
> {code}



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