anchor.diff:  |=================
   
   
  -=== _Snip_ filter
  +=== Snip filter
   
   A _Snip_ filter receives XML documents, generates document fragments pointed by an XPath criteria from them,
   and passes the resulted document fragments as independent documents to sinks it has.
  
positive.code: |uri|The namespace name (URI) mapped from the prefix. | Yes
  |=================
  
  
  === _Transform_ filter
  
  A _Transform_ filter receives XML documents, and apply transformation by an XSLT stylesheet,
  generates output XML documents one per one input document and pass them to sinks it has.
  
negative.code: |=================
  | Element | Description | Required
  |param|A key-value pair of stylesheet parameter. As of now, only string parameter values are supported.| No
  |depends|Resources depended by this filter additionally. The resources are used only to decide whether the corresponding output files are up to date. +
  The way to configure this element is the same as that to configure one that appears in _Chionographis_ driver. So please see the _Chionographis_ driver's explanation for details.| No
  |transform|A _Transform_ sink. .4+| No; at least one sink required
  |all|An _All_ sink.
  |snip|A _Snip_ sink.
  