Module:Redirect: Difference between revisions
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meta>Darklama m multiline comment syntax is ignored by syntaxhighlight extension |
meta>Mr. Stradivarius m Protected Module:Redirect: used in MediaWiki:Protectedpagetext ([Edit=Block all non-admin users] (indefinite) [Move=Block all non-admin users] (indefinite)) |
(No difference)
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Revision as of 16:43, 15 July 2013
Documentation for this module may be created at Module:Redirect/doc
-- Given a single page name determines what page it redirects to and returns the target page name, or the
-- passed page name when not a redirect. The passed page name can be given as plain text or as a page link.
-- Returns page name as plain text, or when the bracket parameter is given, as a page link. Returns an
-- error message when page does not exist or the redirect target cannot be determined for some reason.
-- Thus these are roughly the same:
-- [[{{#invoke:redirect|main|redirect-page-name}}]] and {{#invoke:redirect|main|redirect-page-name|bracket=yes}}
p={}
function p.main(frame)
local args, pargs = frame.args, (frame:getParent() or {}).args or {}
local rname, bracket = args[1] or pargs[1], args.bracket or pargs.bracket
if not rname or not mw.ustring.match(rname, "%S") then return "" end
bracket = bracket and "[[%s]]" or "%s"
rname = mw.ustring.match(rname,"%[%[(.+)%]%]") or rname
local rpage, err = mw.title.new(rname)
-- avoid expensive operation when nothing to do
if not rpage then
err = "File not found (mw.title.new failed)"
elseif rpage.id == 0 then
err = "File not found (id=0):"
elseif not rpage.isRedirect then
return mw.ustring.format(bracket, rname) -- not a redirect so use passed page name (for some general-purpose template use)
else
local redirect = mw.ustring.match( rpage:getContent() or "", "^#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s*%[%[(.-)%]%]" )
if redirect then
return mw.ustring.format(bracket, redirect)
end
err = "failed to understand"
end
return '<span style="text-color:red;">[[Module:redirect]] error: ' .. err .. ' - [[' .. rname .. ']]</span>'
end
return p