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Dear ODD aficionados,

Text & Markup:
For one project we mark up names of <persName xml:id="p1">person</persName>s and places and time. Below the text proper we create link groups that record where a person was at a certain time in a certain place.
<linkGrp>
        <link targets="#person #p1"/>
        <link targets="#place #Z10001980"/>
        <link targets="#time #d383873384226"/>
</linkGrp>
   
    Problem:
    In DTD times the ID-IDREF(S) mechanism allowed us to verify if there was indeed a ID for each IDREF. Now the datatype of TARGETS is set to data.pointer which in turn is "anyURI" (that is also why all targets start with a "#" I guess).  How can I verify the URI is there? Is this possible at all?
    Question:
    What do I have to write in my ODD to get a schema that checks if the URIs referenced in TARGETS do indeed appear in the text above?
   
    Thanks for helping
   
    marcus
   

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Dr. Marcus Bingenheimer 馬德偉
Director, Library and Information Center 圖書資訊館館長
Dharma Drum Buddhist College 法鼓佛教研修學院 (DDBC)
No. 2-6 Xishihu, Jinshan 20842, Taipei County, Taiwan, R.O.C.
台灣,20842台北縣金山鄉西勢湖2-6號 Tel: +886-2-2498-7171 # 2381
http://buddhistinformatics.ddbc.edu.tw/~mb/