How to read topic title via GUID in DITA-OT plugin XSL

Question

Hi, 
 I need to customize one of our DITA-OT plugins available on our Tridion server. The DITA being processed includes an xref with a topic GUID as href value. Give this GUID I need to retrieve the topic's title from the server. 
 Can anyone point me in the right direction to start this customization? I can get a topic title via ISHRemote but don't know how to do so via XSL. 
 Any advice appreciated, 
 Regards, 
 Ann

Raf Snijders · Answer

Hi Ann, As you are in the DITA-OT plugins you do have all the files available on the file system. So in XSL you should be able to open the file (as referenced in the href attribute of the xref element) and retrieve the title from that document. Please have a look at the xsl function called 'document()'. See https://docs.microsoft.com/en-us/previous-versions/dotnet/netframework-4.0/ms256465(v=vs.100) as a possible reference. So providing the correct path in the document() function will allow you to query for this information from the referenced file. DITA-OT has other samples about this in the pre-process plugins as they replace the xref texts with the titles of the linked element as well. So you can search and take inspiration from the OOTB DITA-OT plugins as well. eg. the file topicpullImpl.xsl of the preprocess plugin it has samples on how the DITA-OT process is doing this. Kind Regards, 
 Raf

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How to read topic title via GUID in DITA-OT plugin XSL

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