Module:Unsubst: Difference between revisions

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Module:Unsubst (view source)

Revision as of 07:45, 19 September 2021

1,885 bytes removed ,  19 September 2021
no edit summary
imported>Jeffersonkendric
(Created page with "local checkType = require('libraryUtil').checkType local p = {} local BODY_PARAM = '$B' local specialParams = { ['$params'] = 'parameter list', ['$aliases'] = 'parameter...")
imported>Jeffersonkendric
No edit summary
Line 1: Line 1:
local checkType = require('libraryUtil').checkType
local p = {}
local p = {}
local BODY_PARAM = '$B'


local specialParams = {
local specialParams = {
['$params'] = 'parameter list',
['$N'] = 'template name', -- Deprecated, but keeping until it is removed from transcluding templates
['$aliases'] = 'parameter aliases',
['$B'] = 'template content',
['$flags'] = 'flags',
['$B'] = 'template content'
}
}


function p.main(frame, body)
p[''] = function ( frame )
-- If we are substing, this function returns a template invocation, and if
if not frame:getParent() then
-- not, it returns the template body. The template body can be specified in
error( '{{#invoke:Unsubst|}} makes no sense without a parent frame' )
-- the body parameter, or in the template parameter defined in the
-- BODY_PARAM variable. This function can be called from Lua or from
-- #invoke.
 
-- Return the template body if we aren't substing.
if not mw.isSubsting() then
if body ~= nil then
return body
elseif frame.args[BODY_PARAM] ~= nil then
return frame.args[BODY_PARAM]
else
error(string.format(
"no template content specified (use parameter '%s' from #invoke)",
BODY_PARAM
), 2)
end
end
end
 
if not frame.args['$B'] then
-- Sanity check for the frame object.
error( '{{#invoke:Unsubst|}} requires parameter $B (template content)' )
if type(frame) ~= 'table'
or type(frame.getParent) ~= 'function'
or not frame:getParent()
then
error(
"argument #1 to 'main' must be a frame object with a parent " ..
"frame available",
2
)
end
end
 
-- Find the invocation name.
if mw.isSubsting() then
local mTemplateInvocation = require('Module:Template invocation')
---- substing
local name = mTemplateInvocation.name(frame:getParent():getTitle())
-- Combine passed args with passed defaults
 
local args = {}
-- Combine passed args with passed defaults
local args = {}
if string.find( ','..(frame.args['$flags'] or '')..',', ',%s*override%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
for k, v in pairs( frame.args ) do
if not specialParams[k] then
if not specialParams[k] then
Line 75: Line 29:
args[k] = v
args[k] = v
end
end
end


-- Trim parameters, if not specified otherwise
-- Build an equivalent template invocation
if not string.find( ','..(frame.args['$flags'] or '')..',', ',%s*keep%-whitespace%s*,' ) then
-- First, find the title to use
for k, v in pairs( args ) do args[k] = mw.ustring.match(v, '^%s*(.*)%s*$') or '' end
local titleobj = mw.title.new(frame:getParent():getTitle())
end
local title
 
if titleobj.namespace == 10 then -- NS_TEMPLATE
-- Pull information from parameter aliases
title = titleobj.text
local aliases = {}
elseif titleobj.namespace == 0 then -- NS_MAIN
if frame.args['$aliases'] then
title = ':' .. titleobj.text
local list = mw.text.split( frame.args['$aliases'], '%s*,%s*' )
else
for k, v in ipairs( list ) do
title = titleobj.prefixedText
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] or args[v] == '' ) then
args[v] = args[k]
end
end
args[k] = nil
end


-- Remove empty parameters, if specified
-- Build the invocation body with numbered args first, then named
if string.find( ','..(frame.args['$flags'] or '')..',', ',%s*remove%-empty%s*,' ) then
local ret = '{{' .. title
local tmp = 0
for k, v in ipairs( args ) do
for k, v in ipairs( args ) do
if v ~= '' or ( args[k+1] and args[k+1] ~= '' ) or ( args[k+2] and args[k+2] ~= '' ) then
if string.find( v, '=', 1, true ) then
tmp = k
-- likely something like 1=foo=bar, we need to do it as a named arg
else
break
break
end
end
ret = ret .. '|' .. v
args[k] = nil
end
end
for k, v in pairs( args ) do
for k, v in pairs( args ) do
if v == '' then
ret = ret .. '|' .. k .. '=' .. v
if not (type(k) == 'number' and k < tmp) then args[k] = nil end
end
end
end
return ret .. '}}'
else
---- Not substing
-- Just return the "body"
return frame.args['$B'] .. (frame.args['$N'] and frame:getParent():getTitle() == mw.title.getCurrentTitle().prefixedText and '[[Category:Calls to Module:Unsubst that use $N]]' or '')
end
end
-- Order parameters
if frame.args['$params'] then
local params, tmp = mw.text.split( frame.args['$params'], '%s*,%s*' ), {}
for k, v in ipairs(params) do
v = tonumber(mw.ustring.match(v, '^[1-9][0-9]*$')) or v
if args[v] then tmp[v], args[v] = args[v], nil end
end
for k, v in pairs(args) do tmp[k], args[k] = args[k], nil end
args = tmp
end
return mTemplateInvocation.invocation(name, args)
end
end
p[''] = p.main -- For backwards compatibility


return p
return p
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