Module:Redirect: Difference between revisions
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meta>Jackmcbarn handle redirects that pipe their link |
m 1 revision imported |
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-- redirect. | -- redirect. | ||
function p.getTargetFromText(text) | function p.getTargetFromText(text) | ||
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 | ||
-- Gets the target of a redirect. If the page specified is not a redirect, | -- Gets the target of a redirect. If the page specified is not a redirect, | ||
-- returns nil. | -- returns nil. | ||
function p.getTarget(page) | function p.getTarget(page, fulltext) | ||
-- Get the title object. Both page names and title objects are allowed | -- Get the title object. Both page names and title objects are allowed | ||
-- as input. | -- as input. | ||
Line 43: | Line 44: | ||
), 2) | ), 2) | ||
end | end | ||
if not titleObj | if not titleObj then | ||
return nil | return nil | ||
end | end | ||
local targetTitle = titleObj.redirectTarget | |||
if targetTitle then | |||
local | if fulltext then | ||
if | return targetTitle.fullText | ||
else | |||
return targetTitle.prefixedText | return targetTitle.prefixedText | ||
end | end | ||
else | else | ||
return nil | |||
end | end | ||
end | end | ||
Line 70: | 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 | ||
-- target cannot be determined for some reason. | -- target cannot be determined for some reason. | ||
--]] | --]] | ||
function p.luaMain(rname, bracket) | function p.luaMain(rname, bracket, fulltext) | ||
if type(rname) ~= "string" or not rname:find("%S") then | if type(rname) ~= "string" or not rname:find("%S") then | ||
return nil | return nil | ||
Line 81: | Line 74: | ||
bracket = bracket and "[[%s]]" or "%s" | bracket = bracket and "[[%s]]" or "%s" | ||
rname = rname:match("%[%[(.+)%]%]") or rname | rname = rname:match("%[%[(.+)%]%]") or rname | ||
local target = p.getTarget(rname) | local target = p.getTarget(rname, fulltext) | ||
local ret = target or rname | local ret = target or rname | ||
ret = getTitle(ret) | ret = getTitle(ret) | ||
if ret then | if ret then | ||
ret = ret.prefixedText | if fulltext then | ||
ret = ret.fullText | |||
else | |||
ret = ret.prefixedText | |||
end | |||
return bracket:format(ret) | return bracket:format(ret) | ||
else | else | ||
Line 95: | Line 92: | ||
function p.main(frame) | function p.main(frame) | ||
local args = require('Module:Arguments').getArgs(frame, {frameOnly = true}) | local args = require('Module:Arguments').getArgs(frame, {frameOnly = true}) | ||
return p.luaMain(args[1], args.bracket) or '' | return p.luaMain(args[1], args.bracket, args.fulltext) or '' | ||
end | end | ||
Latest revision as of 20:03, 28 November 2023
Documentation for this module may be created at Module:Redirect/doc
-- 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)
local target = 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*%[%[([^%[%]|]-)|[^%[%]]-%]%]"
)
return target and mw.uri.decode(target, 'PATH')
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 then
return nil
end
local targetTitle = titleObj.redirectTarget
if targetTitle then
if fulltext then
return targetTitle.fullText
else
return targetTitle.prefixedText
end
else
return nil
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