Module:Redirect: Difference between revisions
Content added Content deleted
Enwikipedia>Wnt (should have read my own error) |
Enwikipedia>Wnt (OK, there was more than one error ... time to sort back through again :() |
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local rname=args[1] or pargs[1] or "" |
local rname=args[1] or pargs[1] or "" |
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if redirect=="" then return "" end |
if redirect=="" then return "" end |
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local rpage=mw.title.new( |
local rpage=mw.title.new(rname) |
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local err="" |
local err="" |
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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 |
Revision as of 15:18, 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