On 10/09/2012 06:52 PM, Andrew Fitzgerald wrote:
I'm not sure if this is by design, but it seems when using a tag extension
inside of a template, the tag extension is not passed the correct frame
information about the template when using subst: or Parser::preprocess

For example:  The contents of Template:Test are:

<SomeTagExtension>
{{{1}}}
</SomeTagExtension>

When using  {{subst:Test|Hello World}}  You get

<SomeTagExtension>
{{{1}}}
</SomeTagExtension>

Even if SomeTagExtension is correctly using $parser->recursiveTagParse.

It seems the $frame value does not contain the template variables when
using subst or preprocess.  The frame object type is PPFrame_DOM instead of
PPTemplateFrame_DOM.

Am I doing something wrong, is this by design, or is it a bug?

Thanks
Andrew
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Extension tags are intentionally shielded from the parser and the preprocessor. The lack of PSTs in extension tags is a long-standing bug: < https://bugzilla.wikimedia.org/show_bug.cgi?id=2700>.

—Victor.

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