Module:Get short description/sandbox

 require('strict')

 --[[--------------------------< P A T T E R N S _ T >----------------------------------------------------------

 a sequence of patterns to match canonical template name and its redirects by transclusion counts as of 2024年08月15日:
 	'Short description',														-- 6,090,442 (canonical form)
 	'Short Description',														-- 124
 	'Des',																		-- 20
 	'Shortdesc',																-- 10
 	'Short desc',																-- 8
 	'Shortdescription',															-- 6

 ]]

 localpatterns_t={
 '[Ss]hort [Dd]escription',
 '[Dd]es',
 '[Ss]hort *desc',
 '[Ss]hortdescription',
 }


 --[[-----------------------------< G E T C O N T E N T >-------------------------------------------------------

 fetch the article's raw wikitext
 ]]

 localfunctiongetContent(title)
 localsuccess,titleObj=pcall(mw.title.new,title)-- get a title object for title
 ifnotsuccessthenreturnnilend-- return nil if sommat went wron
 returntitleObj:getContent()-- return wikitext else
 end


 --[[-----------------------------< M A I N >-------------------------------------------------------------------
 ]]

 localfunctionmain(frame,title)-- do we really need <title> here?
 localtitle=frame.args[1]
 localwikitext=getContent(title)
 ifwikitext==nilthenreturn""end-- sommat went wrong, abandon

 for_,patterninipairs(patterns_t)do-- for each pattern in the sequence of redirect patterns
 localdescription=wikitext:match('{{%s*'..pattern..'%s*|%s*([^|}]+)%s*');-- try to find a match
 ifdescriptionthen
 returndescription;-- found one, stop looking and done
 end
 end
 end


 --[[-----------------------------< E X P O R T S >-------------------------------------------------------------
 ]]

 return{
 main=main,
 }