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action=raw&templates=expand should return the source code of a page, with templates within the page expanded. However, if these templates contains extension tag that contains template parameters as value, these parameters are not expanded.

For instance, take extension RawFile (http://www.mediawiki.org/wiki/Extension:RawFile). This extension introduce a tag <file>:

  <file name="myfile" tag="pre">download</file>
  <pre>some text</pre>

When parsed, this tag generates HTML that allows downloading easily the content of the <pre> block.

Now lets create a template {{download}}:

  <file name="{{{name}}}" tag="source">download</file>
  {{{content}}}

If I create a page with as content:

  {{download|name=myfile|content=<pre>
  some text
  </pre>

Then downloading that page with ?action=raw&templates=expand would produce:

  <file name="{{{name}}}" tag="source">download</file>
  <pre>
  some text
  </pre>

When I would in fact expect:

  <file name="myfile" tag="source">download</file>
  <pre>
  some text
  </pre>

The strange thing is that the non-replacement only occurs if the tag is indeed a registered tag. If the tag is not known, then all template parameters are replace as in regular wikitext.


I think this the same problem that requires tag parser hook to call $parser->recursiveTagParse( $text, $frame ) to have template parameters expanded. I would recommend to expand recursively as well with option templates=expand, or at least foresee another option (like templates=recurse or template=expandrecurse) that would do the same.