[lucy-issues] [jira] [Commented] (LUCY-239) Simplify JSON Parser Y File

["Logan Bell (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCY-239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13414579#comment-13414579 ] 

Logan Bell commented on LUCY-239:
---------------------------------

Greets,

Our JSON parser is powered by the Lemon parser generator[1], with the grammar
file in core/Lucy/Util/Json/JsonParser.y.  As formal grammars are the topic of
this week's book club, I thought it might be a good time to hack on it a bit.

Right now, the grammar is slightly more complex than it needs to be.  This
block is unnecessary:

    /* Structural characters. */
    begin_array     ::= LEFT_SQUARE_BRACKET.
    end_array       ::= RIGHT_SQUARE_BRACKET.
    begin_object    ::= LEFT_CURLY_BRACKET.
    end_object      ::= RIGHT_CURLY_BRACKET.
    name_separator  ::= COLON.
    value_separator ::= COMMA.

All we have to do is replace all instances in the file of the non-terminals on
the left with the corresponding terminals on the right and that block can be
deleted.

Have we got a volunteer willing to take this task on?

Marvin Humphrey

                
> Simplify JSON Parser Y File
> ---------------------------
>
>                 Key: LUCY-239
>                 URL: https://issues.apache.org/jira/browse/LUCY-239
>             Project: Lucy
>          Issue Type: Improvement
>    Affects Versions: 0.3.3, 0.4.0
>            Reporter: Logan Bell
>            Assignee: Logan Bell
>            Priority: Trivial
>


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