Module:Redirect - Revision history

Maxisnt: 1 revision imported

2025-11-15T17:10:29Z

1 revision imported

← Older revision		Revision as of 17:10, 15 November 2025
(No difference)

Maxisnt: 1 revision imported

2025-10-30T13:38:50Z

1 revision imported

← Older revision		Revision as of 13:38, 30 October 2025
Line 17:		Line 17:
	-- redirect.		-- redirect.
	function p.getTargetFromText(text)		function p.getTargetFromText(text)
	~~local target =~~ string.match(		return string.match(
	text,		text,
	"^%s#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s:?%s*%[%[([^%[%]\|]-)%]%]"		"^%s#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s:?%s*%[%[([^%[%]\|]-)%]%]"
Line 24:		Line 24:
	"^%s#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s:?%s*%[%[([^%[%]\|]-)\|[^%[%]]-%]%]"		"^%s#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s:?%s*%[%[([^%[%]\|]-)\|[^%[%]]-%]%]"
	)		)
	~~return target and mw.uri.decode(target, 'PATH')~~
	end		end

Line 44:		Line 43:
	), 2)		), 2)
	end		end
	if not titleObj then		if not titleObj or not titleObj.isRedirect then
	return nil		return nil
	end		end
	local ~~targetTitle~~ = titleObj~~.redirectTarget~~
	if targetTitle then		-- Find the target by using string matching on the page content.
	if fulltext then		local target = p.getTargetFromText(titleObj:getContent() or "")
	return targetTitle.~~fullText~~		if target then
			local targetTitle = getTitle(target)
			if targetTitle then
			if fulltext then
			return targetTitle.fullText
			else
			return targetTitle.prefixedText
			end
	else		else
	return ~~targetTitle.prefixedText~~		return nil
	end		end
	else		else
	~~return nil~~		-- The page is a redirect, but matching failed. This indicates a bug in
			-- the redirect matching pattern, so throw an error.
			error(string.format(
			'could not parse redirect on page "%s"',
			fulltext and titleObj.fullText or titleObj.prefixedText
			))
	end		end
	end		end
Line 63:		Line 74:
	-- target page name, or the passed page name when not a redirect. The passed		-- 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.		-- 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		-- 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		-- page link. Returns an error message when page does not exist or the redirect

Wikipedia>Johnuniq: restore p.getTargetFromText which is used by Module:RfD which is causing "Lua error in Module:RfD at line 87: attempt to call upvalue 'getTargetFromText' (a nil value)"

2021-09-10T07:46:37Z

restore p.getTargetFromText which is used by Module:RfD which is causing "Lua error in Module:RfD at line 87: attempt to call upvalue 'getTargetFromText' (a nil value)"

← Older revision		Revision as of 07:46, 10 September 2021
Line 17:		Line 17:
	-- redirect.		-- redirect.
	function p.getTargetFromText(text)		function p.getTargetFromText(text)
	~~return~~ string.match(		local target = string.match(
	text,		text,
	"^%s#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s:?%s*%[%[([^%[%]\|]-)%]%]"		"^%s#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s:?%s*%[%[([^%[%]\|]-)%]%]"
Line 24:		Line 24:
	"^%s#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s:?%s*%[%[([^%[%]\|]-)\|[^%[%]]-%]%]"		"^%s#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s:?%s*%[%[([^%[%]\|]-)\|[^%[%]]-%]%]"
	)		)
			return target and mw.uri.decode(target, 'PATH')
	end		end

Line 43:		Line 44:
	), 2)		), 2)
	end		end
	if not titleObj ~~or not titleObj.isRedirect~~ then		if not titleObj then
	return nil		return nil
	end		end
			local targetTitle = titleObj.redirectTarget
	~~-- Find the target by using string matching on the page content.~~		if targetTitle then
	local ~~target~~ = p.~~getTargetFromText(titleObj:getContent() or "")~~		if fulltext then
	if ~~target~~ then		return targetTitle.fullText
	~~local targetTitle = getTitle(target)~~
	if ~~targetTitle~~ then
	~~if fulltext then~~
	return targetTitle.fullText
	~~else~~
	~~return targetTitle.prefixedText~~
	~~end~~
	else		else
	return ~~nil~~		return targetTitle.prefixedText
	end		end
	else		else
	~~-- The page is a redirect, but matching failed. This indicates a bug in~~		return nil
	~~-- the redirect matching pattern, so throw an error.~~
	~~error(string.format(~~
	~~'could not parse redirect on page "%s"',~~
	~~fulltext and titleObj.fullText or titleObj.prefixedText~~
	))
	end		end
	end		end
Line 74:		Line 63:
	-- target page name, or the passed page name when not a redirect. The passed		-- 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.		-- 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		-- 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		-- page link. Returns an error message when page does not exist or the redirect

Templatewiki>MacFan4000: 1 revision imported: Basic templates

2018-02-01T14:30:00Z

1 revision imported: Basic templates

New page

-- This module provides functions for getting the target of a redirect page.

local p = {}

-- Gets a mw.title object, using pcall to avoid generating script errors if we
-- are over the expensive function count limit (among other possible causes).
local function getTitle(...)
local success, titleObj = pcall(mw.title.new, ...)
if success then
return titleObj
else
return nil
end
end

-- Gets the name of a page that a redirect leads to, or nil if it isn't a
-- redirect.
function p.getTargetFromText(text)
return string.match(
text,
"^%s*#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s*:?%s*%[%[([^%[%]|]-)%]%]"
) or string.match(
text,
"^%s*#[Rr][Ee][Dd][Ii][Rr][Ee][Cc][Tt]%s*:?%s*%[%[([^%[%]|]-)|[^%[%]]-%]%]"
)
end

-- Gets the target of a redirect. If the page specified is not a redirect,
-- returns nil.
function p.getTarget(page, fulltext)
-- Get the title object. Both page names and title objects are allowed
-- as input.
local titleObj
if type(page) == 'string' or type(page) == 'number' then
titleObj = getTitle(page)
elseif type(page) == 'table' and type(page.getContent) == 'function' then
titleObj = page
else
error(string.format(
"bad argument #1 to 'getTarget'"
.. " (string, number, or title object expected, got %s)",
type(page)
), 2)
end
if not titleObj or not titleObj.isRedirect then
return nil
end

-- Find the target by using string matching on the page content.
local target = p.getTargetFromText(titleObj:getContent() or "")
if target then
local targetTitle = getTitle(target)
if targetTitle then
if fulltext then
return targetTitle.fullText
else
return targetTitle.prefixedText
end
else
return nil
end
else
-- The page is a redirect, but matching failed. This indicates a bug in
-- the redirect matching pattern, so throw an error.
error(string.format(
'could not parse redirect on page "%s"',
fulltext and titleObj.fullText or titleObj.prefixedText
))
end
end

--[[
-- 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.
--]]
function p.luaMain(rname, bracket, fulltext)
if type(rname) ~= "string" or not rname:find("%S") then
return nil
end
bracket = bracket and "[[%s]]" or "%s"
rname = rname:match("%[%[(.+)%]%]") or rname
local target = p.getTarget(rname, fulltext)
local ret = target or rname
ret = getTitle(ret)
if ret then
if fulltext then
ret = ret.fullText
else
ret = ret.prefixedText
end
return bracket:format(ret)
else
return nil
end
end

-- Provides access to the luaMain function from wikitext.
function p.main(frame)
local args = require('Module:Arguments').getArgs(frame, {frameOnly = true})
return p.luaMain(args[1], args.bracket, args.fulltext) or ''
end

-- Returns true if the specified page is a redirect, and false otherwise.
function p.luaIsRedirect(page)
local titleObj = getTitle(page)
if not titleObj then
return false
end
if titleObj.isRedirect then
return true
else
return false
end
end

-- Provides access to the luaIsRedirect function from wikitext, returning 'yes'
-- if the specified page is a redirect, and the blank string otherwise.
function p.isRedirect(frame)
local args = require('Module:Arguments').getArgs(frame, {frameOnly = true})
if p.luaIsRedirect(args[1]) then
return 'yes'
else
return ''
end
end

return p