Hi,
FWIW, these "strange characters" are placeholders that MediaWiki inserts
into the text instead of "special" content (such as <nowiki>, <math> and
other tag-based functions). MW inserts these markers early on in the
parsing process (in a phase called "stripping"), and most extension
parser functions will only get to see the markers and not the original
text. At the very end of parsing, MW will replace the markers with the
desired content ("unstripping"). Normally, you get to see the markers
when they have been stored accidentally in SMW. Another possible cause
is that extensions are using their own parsers internally in an
incomplete or buggy way (the markers left over by one parser instance
cannot be unstripped by another parser instance -- they are only
meaningful in the context of a single parsing process). This might occur
during embedding.
I hope this can get you started (since you post to the developer list, I
assume you want to dig into the code yourself to find out what's going
on; debugging interactions of many extensions can require some original
research).
Good luck,
Markus
On 08.10.2014 08:20, planetenxin wrote:
> Hi,
>
> embedded {{Special:RunQuery/Map_query}} creates strange characters like
>
> UNIQ225794f6d43c6688-h-0--QINU
>
> before headings or with {{#tree:}} parser function from
> Extension:TreeAndMenu. I'd guess that there are also other cases where
> this happens.
>
> Example: http://scratchpad.referata.com/wiki/Test_TreeAndQuery
>
> Any ideas?
>
> /Alexander
>
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