Module:Reply to

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This module's documentation page can be edited at Module:Reply to/doc.

This module is used by {{Reply to}} to trigger a notification to one or several registered user(s) you are replying to in a discussion.

Usage from wikitext

This module cannot be used directly from wikitext. Please use the {{Reply to}} template instead.

Usage within templates

{{#invoke:Reply to|replyto|<noinclude>example=example name</noinclude>|max=maximum number of names}}
  • The example parameter sets the name that will show when the template page is viewed. This parameter should be surrounded by <noinclude></noinclude> so that it is not transcluded with the parent template, and the parent template will show an error message if no names are specified.
  • The max parameter sets the maximum number of names that the template will accept. If not specified, it defaults to 50 (which is the maximum number that Echo currently supports). If this number of names is exceeded, the parent template will return an error message.


This module and documentation was copied from Module:Reply to on the English Wikipedia.

local p = {}

local function makeError(msg)
	msg ='Error in [[Template:Reply to]]: ' .. msg
	return mw.text.tag('strong', {['class']='error'}, msg)

function p.replyto(frame)
	local origArgs = frame:getParent().args
	local args = {}
	local maxArg = 1
	local usernames = 0
	for k, v in pairs(origArgs) do
		if type(k) == 'number' then
			if mw.ustring.match(v,'%S') then
				if k > maxArg then maxArg = k end
				usernames = usernames + 1
				local title =
				if not title then return makeError('Input contains forbidden characters.') end
				args[k] = title.rootText
		elseif v == '' and k:sub(0,5) == 'label' then
			args[k] = '&#x200B;'
			args[k] = v

	if usernames > (tonumber(frame.args.max) or 50) then
		return makeError(string.format(
			'More than %s names specified.',
			tostring(frame.args.max or 50)
		if usernames < 1 then
			if frame.args.example then args[1] = frame.args.example else return makeError('Username not given.') end
		args['label1'] = args['label1'] or args['label']
		local isfirst = true
		local outStr = args['prefix'] or '@'
		for i = 1, maxArg do
			if args[i] then
				if isfirst then
					isfirst = false
					if ( (usernames > 2) or ((usernames == 2) and (args['c'] == '')) ) then outStr = outStr..', ' end
					if i == maxArg then outStr = outStr..' '..(args['c'] or 'and') .. ' ' end
				outStr = string.format(
					args['label'..tostring(i)] or args[i]
		outStr = outStr..(args['p'] or ':')
		return mw.text.tag('span', {['class']='template-ping'}, outStr)

return p