Module:Ns has subpages: Difference between revisions

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Module>Mr. Stradivarius
m (Protected Module:Ns has subpages: High-risk Lua module ([Edit=Allow only template editors and admins] (indefinite) [Move=Allow only template editors and admins] (indefinite)))
m (1 revision imported)
Line 1: Line 1:
-- This module implements [[Template:Ns has subpages]].
{{<includeonly>safesubst:</includeonly>#invoke:Ns has subpages|main}}<noinclude>
-- While the template is fairly simple, this information is made available to
{{documentation}}
-- Lua directly, so using a module means that we don't have to update the
<!-- Categories go on the /doc subpage and interwikis go on Wikidata. -->
-- template as new namespaces are added.
</noinclude>
 
local p = {}
 
function p._main(ns, frame)
-- Get the current namespace if we were not passed one.
if not ns then
ns = mw.title.getCurrentTitle().namespace
end
 
-- Look up the namespace table from mw.site.namespaces. This should work
-- for a majority of cases.
local nsTable = mw.site.namespaces[ns]
 
-- Try using string matching to get the namespace from page names.
-- Do a quick and dirty bad title check to try and make sure we do the same
-- thing as {{NAMESPACE}} in most cases.
if not nsTable and type(ns) == 'string' and not ns:find('[<>|%[%]{}]') then
local nsStripped = ns:gsub('^[_%s]*:', '')
nsStripped = nsStripped:gsub(':.*$', '')
nsTable = mw.site.namespaces[nsStripped]
end
 
-- If we still have no match then try the {{NAMESPACE}} parser function,
-- which should catch the remainder of cases. Don't use a mw.title object,
-- as this would increment the expensive function count for each new page
-- tested.
if not nsTable then
frame = frame or mw.getCurrentFrame()
local nsProcessed = frame:callParserFunction('NAMESPACE', ns)
nsTable = nsProcessed and mw.site.namespaces[nsProcessed]
end
return nsTable and nsTable.hasSubpages
end
 
function p.main(frame)
local ns = frame:getParent().args[1]
if ns then
ns = ns:match('^%s*(.-)%s*$') -- trim whitespace
ns = tonumber(ns) or ns
end
local hasSubpages = p._main(ns, frame)
return hasSubpages and 'yes' or ''
end
 
return p

Revision as of 11:00, 4 September 2019

Script error: No such module "Ns has subpages".

Module documentation[create]
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