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Posted to dev@tika.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/03/03 11:36:18 UTC

[jira] [Commented] (TIKA-1841) Different XML output structure for PPT and PPTX

    [ https://issues.apache.org/jira/browse/TIKA-1841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15177637#comment-15177637 ] 

ASF GitHub Bot commented on TIKA-1841:
--------------------------------------

GitHub user zetisam opened a pull request:

    https://github.com/apache/tika/pull/86

    fix for TIKA-1841 contributed by zetisam

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/zetisam/tika TIKA-1841

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/tika/pull/86.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #86
    
----
commit ea82d8538dbd7a1f68d4d290ad0c115f62b29c76
Author: Sam Heijens <sa...@zeticon.com>
Date:   2016-02-15T15:09:51Z

    fix for TIKA-1841 contributed by zetisam

----


> Different XML output structure for PPT and PPTX
> -----------------------------------------------
>
>                 Key: TIKA-1841
>                 URL: https://issues.apache.org/jira/browse/TIKA-1841
>             Project: Tika
>          Issue Type: Improvement
>          Components: parser
>    Affects Versions: 1.11
>            Reporter: Sam H
>
> Issue is slightly related to TIKA-1840
> I've noticed that the XML structure of Powerpoint (PPT) and PPTX files is different. 
> The structure for PPTX seems as follows:
> {code}
> <div class="slide-content"></div>
> <div class="slide-master-content" />
> <div class="slide-notes"></div> //optional
> <div class="slide-comment"></div> //optional
> ...
> <div class="slide-content"></div>
> <div class="slide-master-content" />
> <div class="slide-notes"></div> //optional
> <div class="slide-comment"></div> //optional
> {code}
> Note that there's no parent slide element to indicate the start and end of each slide.
> For powerpoint the structure is as follows:
> {code}
> <div class="slideShow">
>   <div class="slide">
>     <div class="slide-master-content"></div>
>     <div class="slide-content"></div>
>     <div class="slide-notes"></div> //added in TIKA-1840
>     <div class="slide-comment"></div> 
>   </div>
>   ...
>   <div class="slide">
>     <div class="slide-master-content"></div>
>     <div class="slide-content"></div>
>     <div class="slide-notes"></div> //added in TIKA-1840
>     <div class="slide-comment"></div>
>   </div>
> </div>
> <div class="slide-notes">
> {code}
> In my application, I'm using XPath to get the desired information . As the XML structure is different, I have to differentiate my XPath queries whether the file is PPT (old) or PPTX (new). It would be nice for Tika to return the same XML for both.
> I would propose changing the XML structure to this:
> {code}
> <div class="slideShow">
>   <div class="slide">
>     <div class="slide-master-content"></div>
>     <div class="slide-content"></div>
>     <div class="slide-notes"></div> //added in TIKA-1840
>     <div class="slide-comment"></div> 
>   </div>
>   ...
>   <div class="slide">
>     <div class="slide-master-content"></div>
>     <div class="slide-content"></div>
>     <div class="slide-notes"></div> //added in TIKA-1840
>     <div class="slide-comment"></div>
>   </div>
> </div>
> {code}
> So, essentially, like the current PPT output, but without the list of notes at the end (as this is also omitted for PPTX).
> On the one hand this generalizes PPT(X) handling, on the other it can break existing (external) functionality relying on a specific XML output format.
> I don't know if this is something the project wants fixed or not. If so, I'm willing to donate my time.



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