It seems, it's only used on en: in a template called BASICNAME ( http://en.wikivoyage.org/wiki/Template:BASICPAGENAME )
They started to find a replacement.
Dieskussion is here: http://en.wikivoyage.org/wiki/Wikivoyage:Travellers%27_pub#String_function_not_available_after_migration
2012/10/25 Stefan Fussan
<derfussi@gmail.com>
Going to check it.
Stefan2012/10/24 Erik Moeller
<erik@wikimedia.org>
Dear Wikivoyagers,
the Wikivoyage sites currently have string functions for templates
enabled. This adds the {{#len:}}, {{#pos:}}, {{#rpos:}}, {{#rsub:}},
{{#count:}}, {{#replace:}}, {{#explode:}}, and {{#urldecode:}} parser
functions to MediaWiki markup. These string functions can't be
supported on Wikimedia Foundation sites, and templates using them will
break after the migration.
Wikimedia Foundation is currently implementing Lua as a scripting
language for templates which should offer a better approach in the
long run. You can read more about this here:
https://www.mediawiki.org/wiki/Lua_scripting
Your help would be appreciated eliminating any existing dependencies
on these functions. Wikipedians may also be able to help with
conversion to templates not dependent on those functions, and it's
worth looking on en.wikipedia.org for templates with the same name or
purpose.
Thanks,
Erik
--
Erik Möller
VP of Engineering and Product Development, Wikimedia Foundation
Support Free Knowledge: https://wikimediafoundation.org/wiki/Donate
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