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[homepage.git] / blog / archive / 2017 / 02 / index.html

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@@ -21,6 +21,47 @@
 
     <h3>Entries from February 2017.</h3>
     
+    <div class="entry">
+      <div class="title">
+        <a href="http://people.skolelinux.org/pere/blog/Detect_OOXML_files_with_undefined_behaviour_.html">Detect OOXML files with undefined behaviour?</a>
+      </div>
+      <div class="date">
+        21st February 2017
+      </div>
+      <div class="body">
+        <p>I just noticed
+<a href="http://www.arkivrad.no/aktuelt/riksarkivarens-forskrift-pa-horing">the
+new Norwegian proposal for archiving rules in the goverment</a> list
+<a href="http://www.ecma-international.org/publications/standards/Ecma-376.htm">ECMA-376</a>
+/ ISO/IEC 29500 (aka OOXML) as valid formats to put in long term
+storage.  Luckily such files will only be accepted based on
+pre-approval from the National Archive.  Allowing OOXML files to be
+used for long term storage might seem like a good idea as long as we
+forget that there are plenty of ways for a "valid" OOXML document to
+have content with no defined interpretation in the standard, which
+lead to a question and an idea.</p>
+
+<p>Is there any tool to detect if a OOXML document depend on such
+undefined behaviour?  It would be useful for the National Archive (and
+anyone else interested in verifying that a document is well defined)
+to have such tool available when considering to approve the use of
+OOXML.  I'm aware of the
+<a href="https://github.com/arlm/officeotron/">officeotron OOXML
+validator</a>, but do not know how complete it is nor if it will
+report use of undefined behaviour.  Are there other similar tools
+available?  Please send me an email if you know of any such tool.</p>
+
+      </div>
+      <div class="tags">
+        
+        
+        Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>.
+        
+        
+      </div>
+    </div>
+    <div class="padding"></div>
+    
     <div class="entry">
       <div class="title">
         <a href="http://people.skolelinux.org/pere/blog/Ruling_ignored_our_objections_to_the_seizure_of_popcorn_time_no___domstolkontroll_.html">Ruling ignored our objections to the seizure of popcorn-time.no (#domstolkontroll)</a>
@@ -167,7 +208,7 @@ on both sides.</p>
 
 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 
-<li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (2)</a></li>
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 
 </ul></li>
 
@@ -447,7 +488,7 @@ on both sides.</p>
 
  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 
- <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (340)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (341)</a></li>
 
  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 
@@ -483,7 +524,7 @@ on both sides.</p>
 
  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (287)</a></li>
 
- <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (186)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (187)</a></li>
 
  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (28)</a></li>
 
@@ -515,7 +556,7 @@ on both sides.</p>
 
  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 
- <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (50)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (51)</a></li>
 
  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (5)</a></li>