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From "Chris A. Mattmann (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TIKA-1841) Different XML output structure for PPT and PPTX
Date Mon, 15 Aug 2016 03:35:22 GMT

    [ https://issues.apache.org/jira/browse/TIKA-1841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15420584#comment-15420584
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Chris A. Mattmann commented on TIKA-1841:
-----------------------------------------

ping [~zetisam] - please see my comments on your PR on Github. If you can please update and
bring up to date with the branch we can probably merge it.

> 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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