Module:Hatnote: Difference between revisions
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Content added Content deleted
(change the rellink class to the new "hatnote" class, and update the comments) |
(don't categorise talk namespaces) |
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-- use its blacklist. |
-- use its blacklist. |
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errorCategoryLink = mCategoryHandler.main{ |
errorCategoryLink = mCategoryHandler.main{ |
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talk = '', -- Don't categorise talk namespaces. |
|||
other = errorCategoryLink, |
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nocat = demo |
nocat = demo |
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} |
} |
Revision as of 16:13, May 3, 2014
Documentation for this module may be created at Module:Hatnote/doc
--------------------------------------------------------------------------------
-- Module:Hatnote --
-- --
-- This module produces hatnote links and links to related articles. It --
-- implements the {{hatnote}} and {{format hatnote link}} meta-templates, and --
-- includes helper functions for other Lua hatnote modules. --
--------------------------------------------------------------------------------
local libraryUtil = require('libraryUtil')
local checkType = libraryUtil.checkType
local mArguments -- lazily initialise [[Module:Arguments]]
local yesno -- lazily initialise [[Module:Yesno]]
local mCategoryHandler -- lazily initialise [[Module:Category handler]]
local p = {}
--------------------------------------------------------------------------------
-- Helper functions
--------------------------------------------------------------------------------
local function getArgs(frame)
-- Fetches the arguments from the parent frame. Whitespace is trimmed and
-- blanks are removed.
mArguments = require('Module:Arguments')
return mArguments.getArgs(frame, {parentOnly = true})
end
local function removeInitialColon(s)
-- Removes the initial colon from a string, if present.
return s:match('^:?(.*)')
end
function p.findNamespaceId(link, removeColon)
-- Finds the namespace id (namespace number) of a link or a pagename. This
-- function will not work if the link is enclosed in double brackets. Colons
-- are trimmed from the start of the link by default. To skip colon
-- trimming, set the removeColon parameter to true.
checkType('findNamespaceId', 1, link, 'string')
checkType('findNamespaceId', 2, removeColon, 'boolean', true)
if removeColon ~= false then
link = removeInitialColon(link)
end
local namespace = link:match('^(.-):')
if namespace then
local nsTable = mw.site.namespaces[namespace]
if nsTable then
return nsTable.id
end
end
return 0
end
function p.formatPages(...)
-- Formats a list of pages using formatLink and returns it as an array. Nil
-- values are not allowed.
local pages = {...}
local ret = {}
for i, page in ipairs(pages) do
ret[i] = p._formatLink(page)
end
return ret
end
function p.formatPageTables(...)
-- Takes a list of page/display tables and returns it as a list of
-- formatted links. Nil values are not allowed.
local pages = {...}
local links = {}
for i, t in ipairs(pages) do
checkType('formatPageTables', i, t, 'table')
local link = t[1]
local display = t[2]
links[i] = p._formatLink(link, display)
end
return links
end
function p.makeWikitextError(msg, demo)
-- Formats an error message to be returned to wikitext. If demo is not nil
-- or false, no error category is added.
checkType('makeWikitextError', 1, msg, 'string')
yesno = require('Module:Yesno')
mCategoryHandler = require('Module:Category handler')
local errorCategory = 'Hatnote templates with errors'
local errorCategoryLink = string.format(
'[[%s:%s]]',
mw.site.namespaces[14].name,
errorCategory
)
-- Feed the category link through [[Module:Category handler]] so we can
-- use its blacklist.
errorCategoryLink = mCategoryHandler.main{
talk = '', -- Don't categorise talk namespaces.
other = errorCategoryLink,
nocat = demo
}
errorCategoryLink = errorCategoryLink or ''
return string.format(
'<strong class="error">Error: %s.</strong>%s',
msg,
errorCategoryLink
)
end
--------------------------------------------------------------------------------
-- Format link
--
-- Makes a wikilink from the given link and display values. Links are escaped
-- with colons if necessary, and links to sections are detected and displayed
-- with " § " as a separator rather than the standard MediaWiki "#". Used in
-- the {{format hatnote link}} template.
--------------------------------------------------------------------------------
function p.formatLink(frame)
local args = getArgs(frame)
local link = args[1]
local display = args[2]
if not link then
return p.makeWikitextError('no link specified')
end
return p._formatLink(link, display)
end
function p._formatLink(link, display)
-- Find whether we need to use the colon trick or not. We need to use the
-- colon trick for categories and files, as otherwise category links
-- categorise the page and file links display the file.
checkType('_formatLink', 1, link, 'string')
checkType('_formatLink', 2, display, 'string', true)
link = removeInitialColon(link)
local namespace = p.findNamespaceId(link, false)
local colon
if namespace == 6 or namespace == 14 then
colon = ':'
else
colon = ''
end
-- Find the display value.
if not display then
local page, section = link:match('^(.-)#(.*)$')
if page then
display = page .. ' § ' .. section
end
end
-- Assemble the link.
if display then
return string.format('[[%s%s|%s]]', colon, link, display)
else
return string.format('[[%s%s]]', colon, link)
end
end
--------------------------------------------------------------------------------
-- Hatnote
--
-- Produces standard hatnote text. Implements the {{hatnote}} template.
--------------------------------------------------------------------------------
function p.hatnote(frame)
local args = getArgs(frame)
local s = args[1]
local options = {}
if not s then
return p.makeWikitextError('no text specified')
end
options.extraclasses = args.extraclasses
options.selfref = args.selfref
return p._hatnote(s, options)
end
function p._hatnote(s, options)
checkType('_hatnote', 1, s, 'string')
checkType('_hatnote', 2, options, 'table', true)
local classes = {'hatnote'}
local extraclasses = options.extraclasses
local selfref = options.selfref
if type(extraclasses) == 'string' then
classes[#classes + 1] = extraclasses
end
if selfref then
classes[#classes + 1] = 'selfref'
end
return string.format(
'<div class="%s">%s</div>',
table.concat(classes, ' '),
s
)
end
return p