Difference between revisions of "Module:Hatnote"

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Module:Wd>Mr. Stradivarius
(parse pages for section-only links as nil - this prevents section-only links that have an italicized page parameter from having empty <i></i> tags)
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<includeonly>{{#invoke:Hatnote|hatnote}}</includeonly><noinclude>
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--                              Module:Hatnote                               --
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{{documentation}}
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--                                                                            --
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<!-- Categories go on the /doc subpage, and interwikis go on Wikidata. -->
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-- This module produces hatnote links and links to related articles. It      --
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</noinclude>
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-- implements the {{hatnote}} and {{format link}} meta-templates and includes --
 
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-- helper functions for other Lua hatnote modules.                            --
 
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--------------------------------------------------------------------------------
 
−
 
 
−
local libraryUtil = require('libraryUtil')
 
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local checkType = libraryUtil.checkType
 
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local checkTypeForNamedArg = libraryUtil.checkTypeForNamedArg
 
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local mArguments -- lazily initialise [[Module:Arguments]]
 
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local yesno -- lazily initialise [[Module:Yesno]]
 
−
 
 
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local p = {}
 
−
 
 
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--------------------------------------------------------------------------------
 
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-- Helper functions
 
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--------------------------------------------------------------------------------
 
−
 
 
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local function getArgs(frame)
 
−
-- Fetches the arguments from the parent frame. Whitespace is trimmed and
 
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-- blanks are removed.
 
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mArguments = require('Module:Arguments')
 
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return mArguments.getArgs(frame, {parentOnly = true})
 
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end
 
−
 
 
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local function removeInitialColon(s)
 
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-- Removes the initial colon from a string, if present.
 
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return s:match('^:?(.*)')
 
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end
 
−
 
 
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function p.findNamespaceId(link, removeColon)
 
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-- Finds the namespace id (namespace number) of a link or a pagename. This
 
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-- function will not work if the link is enclosed in double brackets. Colons
 
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-- are trimmed from the start of the link by default. To skip colon
 
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-- trimming, set the removeColon parameter to false.
 
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checkType('findNamespaceId', 1, link, 'string')
 
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checkType('findNamespaceId', 2, removeColon, 'boolean', true)
 
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if removeColon ~= false then
 
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link = removeInitialColon(link)
 
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end
 
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local namespace = link:match('^(.-):')
 
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if namespace then
 
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local nsTable = mw.site.namespaces[namespace]
 
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if nsTable then
 
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return nsTable.id
 
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end
 
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end
 
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return 0
 
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end
 
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function p.formatPages(...)
 
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-- Formats a list of pages using formatLink and returns it as an array. Nil
 
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-- values are not allowed.
 
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local pages = {...}
 
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local ret = {}
 
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for i, page in ipairs(pages) do
 
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ret[i] = p._formatLink{link = page}
 
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end
 
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return ret
 
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end
 
−
 
 
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function p.formatPageTables(...)
 
−
-- Takes a list of page/display tables and returns it as a list of
 
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-- formatted links. Nil values are not allowed.
 
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local pages = {...}
 
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local links = {}
 
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for i, t in ipairs(pages) do
 
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checkType('formatPageTables', i, t, 'table')
 
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local link = t[1]
 
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local display = t[2]
 
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links[i] = p._formatLink{link = link, display = display}
 
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end
 
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return links
 
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end
 
−
 
 
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function p.makeWikitextError(msg, helpLink, addTrackingCategory, title)
 
−
-- Formats an error message to be returned to wikitext. If
 
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-- addTrackingCategory is not false after being returned from
 
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-- [[Module:Yesno]], and if we are not on a talk page, a tracking category
 
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-- is added.
 
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checkType('makeWikitextError', 1, msg, 'string')
 
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checkType('makeWikitextError', 2, helpLink, 'string', true)
 
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yesno = require('Module:Yesno')
 
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title = title or mw.title.getCurrentTitle()
 
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-- Make the help link text.
 
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local helpText
 
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if helpLink then
 
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helpText = ' ([[' .. helpLink .. '|help]])'
 
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else
 
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helpText = ''
 
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end
 
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-- Make the category text.
 
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local category
 
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if not title.isTalkPage -- Don't categorise talk pages
 
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and title.namespace ~= 2 -- Don't categorise userspace
 
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and yesno(addTrackingCategory) ~= false -- Allow opting out
 
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then
 
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category = 'Hatnote templates with errors'
 
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category = string.format(
 
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'[[%s:%s]]',
 
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mw.site.namespaces[14].name,
 
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category
 
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)
 
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else
 
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category = ''
 
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end
 
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return string.format(
 
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'<strong class="error">Error: %s%s.</strong>%s',
 
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msg,
 
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helpText,
 
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category
 
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)
 
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end
 
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function p.disambiguate(page, disambiguator)
 
−
-- Formats a page title with a disambiguation parenthetical,
 
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-- i.e. "Example" → "Example (disambiguation)".
 
−
checkType('disambiguate', 1, page, 'string')
 
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checkType('disambiguate', 2, disambiguator, 'string', true)
 
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disambiguator = disambiguator or 'disambiguation'
 
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return string.format('%s (%s)', page, disambiguator)
 
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end
 
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--------------------------------------------------------------------------------
 
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-- Format link
 
−
--
 
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-- Makes a wikilink from the given link and display values. Links are escaped
 
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-- with colons if necessary, and links to sections are detected and displayed
 
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-- with " § " as a separator rather than the standard MediaWiki "#". Used in
 
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-- the {{format link}} template.
 
−
--------------------------------------------------------------------------------
 
−
 
 
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function p.formatLink(frame)
 
−
-- The formatLink export function, for use in templates.
 
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yesno = require('Module:Yesno')
 
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local args = getArgs(frame)
 
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local link = args[1]
 
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if not link then
 
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return p.makeWikitextError(
 
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'no link specified',
 
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'Template:Format link#Errors',
 
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args.category
 
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)
 
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end
 
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return p._formatLink{
 
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link = link,
 
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display = args[2],
 
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italicizePage = yesno(args.italicizepage),
 
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italicizeSection = yesno(args.italicizesection),
 
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}
 
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end
 
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local function italicize(s)
 
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-- Italicize a string.
 
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return '<i>' .. s .. '</i>'
 
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end
 
−
 
 
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local function maybeItalicize(s, shouldItalicize)
 
−
-- italicize s if s is a string and the shouldItalicize parameter is true.
 
−
if s and shouldItalicize then
 
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return italicize(s)
 
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else
 
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return s
 
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end
 
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end
 
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local function parseLink(link)
 
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-- Parse a link and return a table with the link's components.
 
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-- These components are:
 
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-- - link: the link, stripped of any initial colon (always present)
 
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-- - page: the page name (always present)
 
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-- - section: the page name (may be nil)
 
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-- - display: the display text, if manually entered after a pipe (may be nil)
 
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link = removeInitialColon(link)
 
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-- Find whether a faux display value has been added with the {{!}} magic
 
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-- word.
 
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local prePipe, display = link:match('^(.-)|(.*)$')
 
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link = prePipe or link
 
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-- Find the page, if it exists.
 
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-- For links like [[#Bar]], the page will be nil.
 
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local preHash, postHash = link:match('^(.-)#(.*)$')
 
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local page
 
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if not preHash then
 
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-- We have a link like [[Foo]].
 
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page = link
 
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elseif preHash ~= '' then
 
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-- We have a link like [[Foo#Bar]].
 
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page = preHash
 
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end
 
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-- Find the section, if it exists.
 
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local section
 
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if postHash and postHash ~= '' then
 
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section = postHash
 
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end
 
−
 
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return {
 
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link = link,
 
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page = page,
 
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section = section,
 
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display = display,
 
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}
 
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end
 
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function p._formatLink(options)
 
−
-- The formatLink export function, for use in modules.
 
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checkType('_formatLink', 1, options, 'table')
 
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checkTypeForNamedArg('_formatLink', 'link', options.link, 'string', false)
 
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checkTypeForNamedArg(
 
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'_formatLink',
 
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'display',
 
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options.display,
 
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'string',
 
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true
 
−
)
 
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checkTypeForNamedArg(
 
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'_formatLink',
 
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'italicizePage',
 
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options.italicizePage,
 
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'boolean',
 
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true
 
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)
 
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checkTypeForNamedArg(
 
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'_formatLink',
 
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'italicizeSection',
 
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options.italicizeSection,
 
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'boolean',
 
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true
 
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)
 
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local parsed = parseLink(options.link)
 
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local display = options.display or parsed.display
 
−
 
−
-- Deal with the case where we don't have to pipe the link
 
−
if not display and not parsed.section and not options.italicizePage then
 
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return string.format('[[:%s]]', parsed.link)
 
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end
 
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-- Find the display text for piped links
 
−
if not display then
 
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local page = maybeItalicize(parsed.page, options.italicizePage)
 
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local section = maybeItalicize(parsed.section, options.italicizeSection)
 
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if not page then
 
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display = string.format('§&nbsp;%s', section)
 
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elseif section then
 
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display = string.format('%s §&nbsp;%s', page, section)
 
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else
 
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display = page
 
−
end
 
−
end
 
−
 
−
return string.format('[[:%s|%s]]', parsed.link, display)
 
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end
 
−
 
 
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--------------------------------------------------------------------------------
 
−
-- 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',
 
−
'Template:Hatnote#Errors',
 
−
args.category
 
−
)
 
−
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)
 
−
options = options or {}
 
−
local classes = {'hatnote', 'navigation-not-searchable'}
 
−
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 role="note" class="%s">%s</div>',
 
−
table.concat(classes, ' '),
 
−
s
 
−
)
 
−
end
 
−
 
 
−
return p
 

Latest revision as of 13:00, 25 March 2021

Lua error: Internal error: The interpreter exited with status 127.

Retrieved from "https://wikidot.com.au/index.php?title=Module:Hatnote&oldid=1340"