anchor.diff:  
   |Other _MatchingTask_'s nested elements|Please consult Ant's document.|No
   |=================
  +
  +[NOTE]
  +Multithread-safety of Ant's _XMLCatalog_ is not documented explicitly.
  +In this regard, _Chinographis_ driver synchronizes accesses to _XMLCatalogs_ added directly to it.
   
   ===== Meta element's attributes
   
  
positive.code: |Other _MatchingTask_'s attributes|Please consult Ant's document.|No
  |=================
  
  ==== Nested elements
  
  [options="header", cols="1,3,1"]
  
negative.code: |force|Whether this filter proceed to process even if existing output files seem new enough. The descendants (sinks, sinks' sinks, and so on) can not override this to +no+.| No; defaults to +no+
  
  |cache|Whether this driver uses a document cache shared in Chionographis library for +<xsl:include>+, +<xsl:import>+, XPath +document()+ functions, and external entities referred by documents above.  +
  When set to +yes+ explicitly, use of _XMLCatalog_ (see <<actors.chionographis.children, "Nested element" section of the task driver>>) will be invalidated.| No; defaults to +no+ if an _XMLCatalog_ is added to the task driver, +yes+ otherwise
  
  |=================
  
  ==== Nested elements
  