Module:Redirect: Difference between revisions

    From Nonbinary Wiki
    m (hardcoding test)
    m (Another unlikely test)
    Line 9: Line 9:
       local rname=args[1] or pargs[1] or ""
       local rname=args[1] or pargs[1] or ""
       if redirect=="" then return "" end
       if redirect=="" then return "" end
       local rpage=mw.title.new("Wikipedia:AFC")
       local rpage=mw.title.new(rname)
       local err=""
       local err=""
      if rpage then -- avoid possibly expensive FileExists if we don't have anything
    --  if rpage then -- avoid possibly expensive FileExists if we don't have anything
           if rpage.id ~= 0 then
           if rpage.id ~= 0 then
             if rpage.fileExists then
             if rpage.fileExists then
    Line 22: Line 22:
           else err="File not found (id=0): "
           else err="File not found (id=0): "
           end
           end
      else err="File not found (mw.title.new failed)"
    --  else err="File not found (mw.title.new failed)"
      end
    --  end
       return [=[<span style="text-color:red;">[[Module:redirect]] error: ]=] .. err .. [=[ - [[]=] .. rname .. [=[]]</span>]=]
       return [=[<span style="text-color:red;">[[Module:redirect]] error: ]=] .. err .. [=[ - [[]=] .. rname .. [=[]]</span>]=]
    end
    end


    return p
    return p

    Revision as of 15:11, 18 March 2013

    Documentation for this module may be created at Module:Redirect/doc

     ---- This module accepts the name of a single page.  It determines if the page is a redirect; if so it looks up the page, extracts the target, and returns the target name as text.  Its usage is {{#invoke:redirect|main|redirect-page-name}}.  The template neither takes nor gives square brackets, so to show the result as a link use [[{{#invoke:redirect|main|redirect-page-name}}]].  An error is produced if the redirect does not exist, but for versatility no error is given if the file is not a redirect (returns the original text) or if the file name is blank (returns blank).
    
    p={}
    
    function p.main(frame)
       args=frame.args
       parent=frame.getParent(frame)
       if parent then pargs = parent.args else pargs={} end
       local rname=args[1] or pargs[1] or ""
       if redirect=="" then return "" end
       local rpage=mw.title.new(rname)
       local err=""
    --   if rpage then -- avoid possibly expensive FileExists if we don't have anything
          if rpage.id ~= 0 then
             if rpage.fileExists then
                if rpage.isRedirect then
                   return (mw.ustring.find(rpage.getContent,"REDIRECT(.-)%[%[(.-)%]%]") or [=[<span style="text-color:red;">[[Module:redirect]] error: failed to understand - [[]=] .. rname .. [=[]]</span]=])
                else return rname -- not a redirect so leave the original text (for some general-purpose template use)
                end
             else err="File does not exist: "
             end
          else err="File not found (id=0): "
          end
    --   else err="File not found (mw.title.new failed)"
     --  end
       return [=[<span style="text-color:red;">[[Module:redirect]] error: ]=] .. err .. [=[ - [[]=] .. rname .. [=[]]</span>]=]
    end
    
    return p