Mô đun:Unsubst-infobox

local p = {}

local specialParams = {
['$params'] = 'all parameters',
['$extra'] = 'extra parameters',
['$set1'] = 'parameter set 1',
['$set2'] = 'parameter set 2',
['$set3'] = 'parameter set 3',
['$aliases'] = 'parameter aliases',
['$indent'] = 'indent',
['$flags'] = 'flags',
['$B'] = 'template content'
}

p[] = function ( frame )
if not frame:getParent() then
error( ' makes no sense without a parent frame' )
end
if not frame.args['$B'] then
error( ' requires parameter $B (template content)' )
end
if not frame.args['$params'] then
error( ' requires parameter $params (parameter list)' )
end

if mw.isSubsting() then
---- substing
-- Combine passed args with passed defaults
local args = {}
if string.find( ','..(frame.args['$flags'] or )..',', ',%soverride%s,' ) then
for k, v in pairs( frame:getParent().args ) do
args[k] = v
end
for k, v in pairs( frame.args ) do
if not specialParams[k] then
if v == '__DATE__' then
v = mw.getContentLanguage():formatDate( 'F Y' )
end
args[k] = v
end
end
else
for k, v in pairs( frame.args ) do
if not specialParams[k] then
if v == '__DATE__' then
v = mw.getContentLanguage():formatDate( 'F Y' )
end
args[k] = v
end
end
for k, v in pairs( frame:getParent().args ) do
args[k] = v
end
end

-- Build an equivalent template invocation
-- First, find the title to use
local titleobj = mw.title.new(frame:getParent():getTitle())
local title
if titleobj.namespace == 10 then -- NS_TEMPLATE
title = titleobj.text
elseif titleobj.namespace == 0 then -- NS_MAIN
title = ':' .. titleobj.text
else
title = titleobj.prefixedText
end

-- Remove empty fields
for k, v in pairs( args ) do
if v == then args[k] = nil end
end

-- Pull information from parameter aliases
local aliases = {}
if frame.args['$aliases'] then
local list = mw.text.split( frame.args['$aliases'], '%s,%s' )
for k, v in ipairs( list ) do
local tmp = mw.text.split( v, '%s>%s' )
aliases[(tonumber(mw.ustring.match(tmp[1], '^[1-9][0-9]$'))) or tmp[1]] = ((tonumber(mw.ustring.match(tmp[2], '^[1-9][0-9]$'))) or tmp[2])
end
end
for k, v in pairs( aliases ) do
if args[k] and not args[v] then args[v], args[k] = args[k], nil end
end

-- Build the invocation body with numbered args first, then named
local ret = '{{' .. title
for k, v in ipairs( args ) do
if mw.ustring.find( v, '=', 1, true ) then
-- likely something like 1=foo=bar, we need to do it as a named arg
break
end
if not aliases[k] then
ret = ret .. '|' .. v
args[k] = nil
end
end

-- Pull lists from special parameters
local params = mw.text.split( frame.args['$params'], '%s,%s' )
for k, v in ipairs( params ) do
params[k] = (tonumber(mw.ustring.match(v, '^[1-9][0-9]$'))) or v
end
local sets, setparams, extra = {{}, {}, {}}, {}, {}
for k = 1, 3 do
local v = frame.args['$set' .. k]
if v then
setparams[k] = mw.text.split( v, '%s,%s' )
for x, y in ipairs( setparams[k] ) do
setparams[k][x] = (tonumber(mw.ustring.match(y, '^[1-9][0-9]$'))) or y
sets[k][setparams[k][x]] = true
end
end
end
if frame.args['$extra'] then
local tmp = mw.text.split( frame.args['$extra'], '%s,%s' )
for k, v in ipairs( tmp ) do extra[(tonumber(mw.ustring.match(v, '^[1-9][0-9]$'))) or v] = true end
end

-- Replace parameter list with short version if full version not necessary
local tmp = {}
for k, v in ipairs( sets ) do
if next(v) then -- if table v is not empty
for _, x in ipairs( params ) do
if args[x] and not v[x] then
tmp[k] = true
break
end
end
if not tmp[k] then params = setparams[k] end
end
end

-- Align parameters correctly and remove extra ones
local maxlength = 0
local discard = {}
for k, v in ipairs( params ) do
if (not extra[v]) or args[v] then
local tmp = mw.ustring.len( tostring( v ) )
if tmp > maxlength then maxlength = tmp end
else
table.insert( discard, 1, k )
end
end
for k, v in ipairs( discard ) do table.remove( params, v ) end
local indent = string.rep(' ', (tonumber(frame.args['$indent']) or 0))

local space, newline = ' ', '\n'
if not next(params) then space, newline = , end

for k, v in ipairs( params ) do
local tmp = space
if mw.ustring.match( mw.ustring.sub( ( args[v] or ) .. ' ', 1, 1 ), '[%:;]' ) then tmp = '\n' end
ret = ret .. newline .. indent .. '|' .. space .. v .. string.rep(' ', (maxlength - mw.ustring.len( v ))) .. space .. '=' .. tmp .. (args[v] or )
end

ret = ret .. newline .. '}}'

ret = mw.ustring.gsub(ret, '%s+\n', '\n')

return ret
else
-- Not substing
-- Just return the "body"
return frame.args['$B']
end
end

return p