Module:URL
 | This Lua module is used on 238,000+ pages. To avoid large-scale disruption and unnecessary server load, any changes to this module should first be tested in its /sandbox or /testcases subpages. The tested changes can then be added to this page in one single edit. Please consider discussing any changes on the talk page before implementing them. |
This module implements {{URL}}. Please see the template page for documentation.
--
-- This module implements {{URL}}
--
-- See unit tests at [[Module:URL/tests]]
local p = {}
function trim(s)
return (mw.ustring.gsub(s, "^%s*(.-)%s*$", "%1"))
end
function safeUri(s)
local success, uri = pcall(function()
return mw.uri.new(s)
end)
if success then
return uri
end
end
function p._url(url, text)
url = trim(url or '')
text = trim(text or '')
if url == '' then
if text == '' then
return mw.getCurrentFrame():expandTemplate{ title = 'tlx', args = { 'URL', "''example.com''", "''optional display text''" } }
else
return text
end
end
-- If the URL contains any unencoded spaces, encode them, because MediaWiki will otherwise interpret a space as the end of the URL.
url = mw.ustring.gsub(url, '%s', function(s) return mw.uri.encode(s, 'PATH') end)
-- If there is an empty query string or fragment id, remove it as it will cause mw.uri.new to throw an error
url = mw.ustring.gsub(url, '#$', '')
url = mw.ustring.gsub(url, '%?$', '')
-- If it's an HTTP[S] URL without the double slash, fix it.
url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?):(/?)([^/])', 'http%1://%3')
-- Handle URLs from Wikidata of the format http://
url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?)://', 'http%1://')
local uri = safeUri(url)
-- Handle URL's without a protocol and URL's that are protocol-relative,
-- e.g. www.example.com/foo or www.example.com:8080/foo, and //www.example.com/foo
if uri and (not uri.protocol or (uri.protocol and not uri.host)) and url:sub(1, 2) ~= '//' then
url = 'http://' .. url
uri = safeUri(url)
end
if text == '' then
if uri then
if uri.path == '/' then uri.path = '' end
local port = ''
if uri.port then port = ':' .. uri.port end
text = mw.ustring.lower(uri.host or '') .. port .. (uri.relativePath or '')
else -- URL is badly-formed, so just display whatever was passed in
text = url
end
end
-- Add <wbr> before _/.-# sequences
text = mw.ustring.gsub(text,"(/+)","<wbr/>%1") -- This entry MUST be the first. "<wbr/>" has a "/" in it, you know.
text = mw.ustring.gsub(text,"(%.+)","<wbr/>%1")
-- text = mw.ustring.gsub(text,"(%-+)","<wbr/>%1") -- DISABLED for now
text = mw.ustring.gsub(text,"(%#+)","<wbr/>%1")
text = mw.ustring.gsub(text,"(_+)","<wbr/>%1")
return mw.ustring.format('<span class="url">[%s %s]</span>', url, text)
end
function p.url(frame)
local templateArgs = frame.args
local url = templateArgs[1] or ''
local text = templateArgs[2] or ''
return p._url(url, text)
end
return p
