[jira] Updated: (AVRO-268) Replace lemon-generated JSON parser with simpler recursive descent parser

["Matt Massie (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-268?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Massie updated AVRO-268:
-----------------------------

    Status: Patch Available  (was: Open)

> Replace lemon-generated JSON parser with simpler recursive descent parser
> -------------------------------------------------------------------------
>
>                 Key: AVRO-268
>                 URL: https://issues.apache.org/jira/browse/AVRO-268
>             Project: Avro
>          Issue Type: Improvement
>          Components: c
>            Reporter: Matt Massie
>            Assignee: Matt Massie
>             Fix For: 1.3.0
>
>         Attachments: AVRO-268.patch
>
>
> This is a drop-in replacement for the current JSON parser which is based on lemon (a LALR parser generator).
> This parser 
> * reads and returns a single JSON_value and its nested children (using recursive descent parsing)
> * allows you to process JSON from streams in addition to static memory buffers
> * correctly processes unicode \u escaping including surrogates
> * distinguishes between integer and real number representations 
> * provides information about the line and character in JSON that failed to parse
> * is much simpler to understand and maintain (less lines of code and source files)
> * is written to allow error recovery to be added later
> This patch also adds more unit tests.

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