Module:URL

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The module “URL” contains (specify) available calls that make so and such.

Usage[επεξεργασία κώδικα]

{{#invoke:URL|function_name|…}}

Parameters[επεξεργασία κώδικα]

The text below assumes that functions are declared as

function p.function_name( frame )
  • Positional parameters – the value of frame.args[1] is passed after function name and vertical bar, the value of frame.args[2] is passed after the value of frame.args[1] and vertical bar, and so on.
  • Named parameters (specify them) – the same name=value syntax as in MediaWiki templates, are accessible inside the function as frame.args["name"].

Examples[επεξεργασία κώδικα]

Περαιτέρω πληροφορίες: Module:URL/testcases

example.org

--
-- This module implements {{URL}}

local p = {}
 
local function trim(s)
	return (mw.ustring.gsub(s, "^%s*(.-)%s*$", "%1"))
end

local 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 '')

			-- 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")
		else -- URL is badly-formed, so just display whatever was passed in
			text = url
		end
	end

	return mw.ustring.format('<span class="url">[%s %s]</span>', url, text)
end

local function extractUrl(args)
	for name, val in pairs(args) do
		local url = name .. "=" .. val;
		url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?):(/?)([^/])', 'http%1://%3')
		local uri = safeUri(url);
		if uri and uri.host then
			return url
		end
	end
end

function p.url(frame)
	local templateArgs = frame.args
	local parentArgs = frame:getParent().args
	local url = templateArgs[1] or parentArgs[1] or ''
	local text = templateArgs[2] or parentArgs[2]
	if not text then
		url = url or extractUrl(templateArgs) or extractUrl(parentArgs);
	end
	text = text or ''
	return p._url(url, text)
end

return p