Module:Bad title suggestion
This module is used in system messages. Changes to it can cause immediate changes to the Festipedia user interface. To avoid large-scale disruption, any changes should first be tested in this module's /sandbox or /testcases subpage, or in your own user space. The tested changes can then be added in one single edit to this module. Please discuss any changes on the talk page before implementing them. |
This module implements title suggestions for the "Bad title" interface message at MediaWiki:Title-invalid-characters. When the user asks for a page with invalid characters, this module checks for a page with the given title up to the first invalid character. If it exists, {{Did you mean box}} is displayed.
Usage[edit]
{{#invoke:Bad title suggestion|main|invalid_char|bad_title_encoded}}
In the case of MediaWiki:Title-invalid-characters, this is:
{{#invoke:Bad title suggestion|main|$1|$2}}
Examples[edit]
- Linda>:
{{#invoke:Bad title suggestion|main|>|Linda>}}
Did you mean: Linda? |
- Festipedia:The Den}}:
{{#invoke:Bad title suggestion|main|}|Festipedia: The Denp}}}}
Did you mean: Festipedia:The Den? |
- Main Page|title text!:
{{#invoke:Bad title suggestion|main|||Main Page|title text!}}
Did you mean: Main Page? |
- This page absolutely does not exist>:
{{#invoke:Bad title suggestion|main|>|This page absolutely does not exist>}}
(nothing displayed)
- Category:Carriages>:
{{#invoke:Bad title suggestion|main|>|Category:Carriages>}}
Did you mean: Category:Carriages? |
- <Foobar>:
{{#invoke:Bad title suggestion|main|<|#60;Foobar#62;}}
(nothing displayed)
require("strict")
local getArgs = require("Module:Arguments").getArgs
local p = {}
local function dedab(title)
return title:gsub(" ?%(.-%)","")
end
function p.main(frame)
local args = getArgs(frame)
-- The invalid character, e.g. ">" or "}"
local chr = args[1]
-- The escaped bad title, e.g. "Foobar>" or "Foobar|text"
local title = args[2]
-- A pipe (|) as the invalid character is a special case; it is not
-- escaped, so instead the module thinks it got two empty arguments
-- and the title as the third argument.
if chr == nil and title == nil then
chr = "|"
title = args[3]
end
if chr == nil or title == nil then
return ""
end
-- Determine the suggested title by taking a prefix of the bad title
-- up to the first invalid character. Only display the suggestion box
-- if the page exists.
local index = mw.ustring.find(title, mw.text.nowiki(chr), 1, true)
local truncate = ""
if index then
local page = mw.title.new(mw.ustring.sub(title, 1, index - 1))
if page and page.exists then
truncate = '<div class="mw-parser-output">' .. frame:expandTemplate{
title = "Did you mean box",
args = { page.fullText }
} .. '</div>'
end
end
return p._substitute(frame, title, chr)..truncate
end
function p._substitute(frame, title, chr)
-- Since the overrides page has a lower protection level than this one don't crash if it's invalid
local success, overrides = pcall(function() return mw.loadJsonData("Module:Bad title suggestion/override.json") end)
local spage
local substitute = ""
title = mw.text.decode(title):gsub("_", " ")
if success and overrides[title] then
spage = mw.title.new(overrides[title])
elseif success and overrides[title:lower()] then
spage = mw.title.new(overrides[title:lower()])
elseif success and overrides[dedab(title)] then
spage = mw.title.new(overrides[dedab(title)])
elseif not chr or chr == "[" or chr == "]" then
local replaced = title:gsub("%[","("):gsub("%]",")")
if replaced ~= title then
spage = mw.title.new(replaced)
end
end
if spage and spage.exists then
substitute = '<div class="mw-parser-output">' .. frame:expandTemplate{
title = "Did you mean box",
args = { spage.fullText }
} .. '</div>'
end
return substitute
end
function p.substitute(frame)
return p._substitute(frame, frame.args[1], nil)
end
return p