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https://issues.apache.org/jira/browse/AVRO-956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13151355#comment-13151355
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Thiruvalluvan M. G. commented on AVRO-956:
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If there are no objections, I'll commit this soon.
                
> Remove dependency on Flex/Bison
> -------------------------------
>
>                 Key: AVRO-956
>                 URL: https://issues.apache.org/jira/browse/AVRO-956
>             Project: Avro
>          Issue Type: Improvement
>          Components: c++
>    Affects Versions: 1.6.1
>            Reporter: Thiruvalluvan M. G.
>            Assignee: Thiruvalluvan M. G.
>             Fix For: 1.7.0
>
>         Attachments: AVRO-956-2.patch, AVRO-956.patch
>
>
> The current schema parser uses Flex/Bison. Making Flex/Bison work with CMake 
> seems difficult. Moreover trying to parse Json directly into in-memory schema 
> object appears hard. The code is not friendly for extensions to implement new 
> features such as namespace, documentation comments etc.
> We already have a Json parser in Avro C++ codebase, but is hidden inside the 
> JsonCodec. Bringing it out and implementing a schema parser on top of that 
> (similar to the Java and C# implementations) would fix the problem. The 
> forthcoming patch does just that.

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