[jira] [Resolved] (MIME4J-116) Avoid duplicate parsing of header fields

["Oleg Kalnichevski (JIRA)" <mi...@james.apache.org>]

     [ https://issues.apache.org/jira/browse/MIME4J-116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oleg Kalnichevski resolved MIME4J-116.
--------------------------------------

    Resolution: Fixed

Fixed in SVN trunk. Please review.

Oleg

> Avoid duplicate parsing of header fields
> ----------------------------------------
>
>                 Key: MIME4J-116
>                 URL: https://issues.apache.org/jira/browse/MIME4J-116
>             Project: JAMES Mime4j
>          Issue Type: Improvement
>    Affects Versions: 0.6
>            Reporter: Markus Wiederkehr
>             Fix For: 0.7
>
>
> Currently some header fields are parsed twice when building a DOM. Once by DefaultBodyDescriptor or MaximalBodyDescriptor and a second time by MessageBuilder using Field.parse().
> Also different parsers are used in both stages. The body descriptors use handcrafted parsers whereas Field.parse uses JavaCC generated parsers. The handcrafted version does not seem to handle comments in a header correctly.
> The situation should be improved by parsing a header field only once and passing that already parsed field to a content handler. Also only one sort of field parser should be used; either handcrafted or generated. My personal opinion is that it might be easier for a handcrafted parser to be more tolerant against malformed header fields.

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