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https://issues.apache.org/jira/browse/AVRO-268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12795193#action_12795193
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Matt Massie commented on AVRO-268:
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I should also mention that a few unit tests are *removed* with this patch as
well. Tests with trailing character that used to fail now succeed with the new
parser.
For example, the following JSON used to fail to parse
{code}
{ "key": "value" } foo bar baz
{code}
while now, the new parser will return immediately when it hits the last '}'
ignoring the trailing junk characters.
> 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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