User:Rical/Central modules

This draft page and its talk must be in a better place, where you can copy it (in one or some pages).

This task T135845, seems enough advanced to share it.
That means enough defined, explicit and debug to permit at any developer to take a part of it and to work on it in coordination with others.
Then we can/must choose how to cooperate.
That means we can/must choose pages to discuss our works and changes.
This process also is a long term task for many central modules.
As a first step, on 2016-06-02, the initial developper creates this draft page to begin this process, and leave to others to take their parts of it.
At time, the initial developer Rical works on MW TestsCases .
Any developer can already #Convert a module as centralisable.

Some related pages: Draft documentation: Central modules.; Central libraries: Module:Central.; Simple examples of uses: Module:Central/Documentation; Full example: Victor_Hugo .

Task: Convert any module as central or centralisable

Scribunto permit to convert any module as central, or even centralisable before an efficient central repository exists.

That permits to use central modules in many languages, in many projects, even in many small wikis without enought helpers.

That provides an easier and more efficient peer review.
That enhanses the mean abilities of modules for a same global effort.
That reduces the duplication of effort for a same result.
That increases the mean availability of coders and helpers.

A central module can help users and helpers, in their own languages and the wiki languages, by errors, warnings, categories, reports and tests.

Example: display a category in the helper language and link to the category in wiki language.
Example: for each project and each language, choose detailed categories names or only categories "users modules errors" and "internal modules errors".

A central module must be very stable, understandable and strong against small usual misuses.

For that it permits managements of arguments, wikidata, errors, messages and modules versions.

The draft proposition for this task:task T135845 is in fr.wikisource Central modules.

What is a central module?

From actual live developments we can at least say:

It is able to use translations, in some or many languages, of its arguments names, catégories names, and errors messages that it produces.

Translations are in a /I18N submodule to not disturb it, except for minimal internal translations.

It is able to automaticly use any available translated languages.

It is able to use the local wiki language and the user language at the same time.

It can use a version management ability, at local and at central repository.

It can work at local like at central repository, for local tests without disturb central version, or for uses waiting central availability.

It is stable and contains necessary MW tests cases.

It is protected against too easy edit for a better stability.

If sought, it is able to help readers, helpers and developers in doc, edit and tests mode, showing internal documentation, reports and tests of complex basic functions.

These abilities come from one or some scribunto libraries, depending of the complexity of the module an its submomules.

Its uses of central libraries must be very simple in any simple or complex modules.

Functions verify parameters types and replace missing parameters by default values.

Functions are strong enough to accept little calling faults when non ambiguous.

How to support central modules?

Like modules in talk pages? And like phab tasks? And sharing tasks?

Use a common sharing page: Talk:Central modules?

How to name a Lua developer? Developer? Coder? Lua coder?

Use the versions management, in tests places or in final places.

The rights of Global interface editors could give global ability.

To ask in Requests for other global permissions could give global ability.

The rights of Interface editors could give global ability only from local login.

Waiting an efficient central repository, some bots could repeat validated centralisable modules in some places where active coders experiment them.

Easier, faster and stable development

Keep in one module the example of central module, and its libraries until they will be stable:

to easy change groups of functions in libraries, or in object,
to easy coordinate changes in several parts of the code,
to easy install and update all central libraries in a new place where use the code or where change it.

In development phase, to show the abilities of central modules, keep some languages, errors, messages, categories...

Alias of functions insure the continuity of service across change in sub-module, then in calling module, then in sub-module to delete the alias.

function tools.maini18n_lang_v_t(i18n, txt) -- Deprecated name of the function
	return tools.form_i18n_counts(i18n, txt) -- Better name or change in 
end -- Count available translations and languages

In development phase, when many functions or even some libraries are not well defined, put them in the same module and re-distribute functions and parameters.

function centre.init(frame, args_known, mode_name, options_for_modes, itemid) -- In an easier function, group some others, before change in calling module.
	tools.init_tools(frame, options_for_modes)
	centre.bindlibraries() -- Install central libraries, waiting true central libraries.
	centre.bindmodules(p)
	tools.get_arg_mode(mode_name, source_key, try_lang, args_source)
end

To try evolutions in a module or restructuration of some ones, use the versions management.

p.versions = { -- Modules dependencies. Dependencias del módulo. Dépendances du module.
	versionName = "Central", versionNumber = "1.03", versionDate = "2016-02-21 23:53",
	sought = "Central01,Central 2,mathroman", -- Sought module and submodules versions
	known = " Central01,Central 2 * mathroman,mathroman3 ", -- Known module and submodules versions
}

Short story of development

The previous templates was based on the oldest LISP programmation langage style.
On 2012-04-16, Mediawiki offered Lua in Scribunto . This language is very simple to use, but very complete, all in objects, with the "meta" table to replace the words "inherited" or "class" (even sub-threads out of Mediawiki).
Of course then, many users began to convert each old templates in new Lua modules which was simple due to the already existing LISP-like templates.
But the previous French Template:Author was already a complex template, needing 6 sub-templates, see "liés".
On 2013-01-18, i18n tables was used to translate errors.
On 2013-01-25, in the Module:Author, the generic management of arguments, and the table to group their definitions, came from its large number of arguments, see "args_known".
On 2013-03-12, the Module:ControlArgs groups complex translations and management of arguments to support other modules to become centralisable.
On 2015-02-25, the Module:Author3 include the versions management for a better stability.
On 2016-01-30, the Module:Central convert modules in libraries.
On 2016-05-20, task T135845: a task propose to "Convert any module as centralizable".

State of development

In phase of development, some errors are needed to show them in some reports and to choose their better places.

Do not correct these errors, or even activate some ones.

Central translatable libraries are: centre and tools.

Each translatable library contains internal translations in english, french and spanish.

The library mathroman is a very small exemple of translatable library, only detects errors and has no mode nor options.

The centre library binds modules in sought versions management and easy translates parametrable strings.

The tools library support simple to complex modules.

Their supports are to translate, collect, manage and display views.

Translate is for arguments names from template, for images and texts on page and for categories and errors.

Waiting final true libraries, for local or central developments, the libraries and their translations can come from Module:Central and Module:Central/I18N.

Where to place the i18n translations out of the final libraries to not disturb it when translations change?

Proposition: put the centre library in Module:Library/centre/I18N.

The arguments management collects and keeps strings to translate and their parameters. Later also display lists of translated strings in right places (warning, errors, categories, categorize).

Manage arguments means also coming from wikidata, help for better argument name orthograph, auto correction of arguments names when non ambiguous, alias arguments names, verify if value is in the parametrable list of values, needed but absent, warning when twice defined, arguments descriptions.

The versions management require() adequate versions of submodules to test, following known and sought versions, like Module:Vers2.4.

This versions management reports versions used, errors, missing or replaced by normal ones... then helpers can better select and understand what happens.

Any helper of main module can select versions of its submodules from internal arguments or from template arguments.

Central libraries permit to easy generates categories, single or in group, translatable dropboxs, tables views, tests views...

Unavailable or sought abilities

on 2016-05-20

Central libraries are NOT stable and need to contain necessary MW tests cases.
For MW tests cases, we can also display the results in tableviews, like for many other tests.
Auto correction of arguments names when they are non ambiguous (see available levenstein).
Waiting the tasks debug, config arguments simulate informations depending of blocking tasks.
In the list of available languages, when it is large, we could display first a list of "near languages", like tools_near_languages = "fr,es,it", defined in i18n translations for each language. Others are in alphabetic order of languages codes. See tools.maini18n_languages_list() which returns "This module can translate 171 texts in 3 languages: English(en=English), español(es=Spanish), français(fr=French),".
For MW tests cases of the logic of centre.bindmodules(), replace existing modules by a simulation of package.loaded.
Make a testviewer based on MW tests cases.
Main options for dropbox (title, content, image) also could be in the style options.
Tests of multiple values arguments must be explicit.

States table of known tasks

* = ( detected state )
Used colors: , Resolved = task already completed , args = task replaced by arguments or by the module , other = other tasks

Number	Status	Title
Important	-	-
T53660	Open	Detect the edit state to adapt help messages to user errors
T68051	args	Give at modules the user language to display errors and categories names for him - ( detected state )
T119978	Invalid	Get the own module name and last record date-time from each module
T85419	Open	User groups should be exposed to Scribunto
T122752	get corrected Resolved	#invoke do not record the main module in package.loaded - ( detected state )
T67507	Closed	It should be possible to get entity id from page title. See EntityIdLookup::getEntityIdForTitle.
T123196	Resolved	Access to item from talk page
T133498	Open	Any title in wikibase can give its item id to modules - ( detected state )
Central	-	-
T121470	Open	Central Global Repository for Templates, Lua modules, and Gadgets
T135845	Open	Convert any module as central or centralisable
T52329	Stalled	We need a common repository for Scribunto modules and templates
T41610	Resolved	Scribunto should support global module invocations
Marginal	-	-
T63958	Open	Use existing $dateFormats to format dates on Wikidata
T85412	Open	The formatPropertyValues needs an option to format data from date-time, angle or geographic coordinates
T75460	Resolved	[Story] Make Lua functions default to the user's language on multilingual wikis

Mediawiki recursive TestsCases

TestsCases mathroman: int2roman(2013) = MMXIII, roman2int(MMXVI) = 2016,
- TestsCases , recursive level = 1 n/N = 13/13 , group = mathroman_groups_1
n/N = 1/13, countonly=13, sub_count=0, name = mathroman_groups_1_int2roman_1( , i = -11 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 2/13, countonly=14, sub_count=0, name = mathroman_groups_1_int2roman_2( , i = 0 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 3/13, countonly=15, sub_count=0, name = mathroman_groups_1_int2roman_3( , i = 12 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 4/13, countonly=16, sub_count=0, name = mathroman_groups_1_int2roman_4( , i = 17 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 5/13, countonly=17, sub_count=0, name = mathroman_groups_1_int2roman_5( , i = 18 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 6/13, countonly=18, sub_count=0, name = mathroman_groups_1_int2roman_6( , i = 19 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 7/13, countonly=19, sub_count=0, name = mathroman_groups_1_int2roman_7( , i = 111 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 8/13, countonly=20, sub_count=0, name = mathroman_groups_1_int2roman_8( , i = 444 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 9/13, countonly=21, sub_count=0, name = mathroman_groups_1_int2roman_9( , i = 555 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 10/13, countonly=22, sub_count=0, name = mathroman_groups_1_int2roman_10( , i = 777 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 11/13, countonly=23, sub_count=0, name = mathroman_groups_1_int2roman_11( , i = 1111 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 12/13, countonly=24, sub_count=0, name = mathroman_groups_1_int2roman_12( , i = 4999 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 13/13, countonly=25, sub_count=0, name = mathroman_groups_1_int2roman_13( , i = 5000 ), , testcode = nil , argserrs = mathroman_null_value_err-0
- TestsCases , recursive level = 1 n/N = 8/32 , group = mathroman_groups_14
n/N = 1/32, countonly=32, sub_count=0, name = mathroman_groups_14_roman2int_1( , rm = -X ), , testcode = nil , argserrs =
n/N = 2/32, countonly=33, sub_count=0, name = mathroman_groups_14_roman2int_2( , rm = 0 ), , testcode = nil , argserrs =
n/N = 3/32, countonly=34, sub_count=0, name = mathroman_groups_14_roman2int_3( , rm = ), , testcode = nil , argserrs =
n/N = 4/32, countonly=35, sub_count=0, name = mathroman_groups_14_roman2int_4( , rm = MCXI ), , testcode = nil , argserrs =
n/N = 5/32, countonly=36, sub_count=0, name = mathroman_groups_14_roman2int_5( , rm = XIJ ), , testcode = nil , argserrs =
n/N = 6/32, countonly=37, sub_count=0, name = mathroman_groups_14_roman2int_6( , rm = XJI ), , testcode = nil , argserrs =
n/N = 7/32, countonly=38, sub_count=0, name = mathroman_groups_14_roman2int_7( , rm = XIA ), , testcode = nil , argserrs =
n/N = 8/32, countonly=39, sub_count=0, name = mathroman_groups_14_roman2int_8( , rm = VLD ), , testcode = nil , argserrs =
n/N = 9/32, countonly=40, sub_count=0, name = mathroman_groups_14_roman2int_9( , rm = IXC ), , testcode = nil , argserrs =
n/N = 10/32, countonly=41, sub_count=0, name = mathroman_groups_14_roman2int_10( , rm = MMMMCMXCIX ), , testcode = nil , argserrs =
n/N = 11/32, countonly=42, sub_count=0, name = mathroman_groups_14_roman2int_11( , rm = MMMMM ), , testcode = nil , argserrs =
n/N = 12/32, countonly=43, sub_count=0, name = mathroman_groups_14_roman2int_12( , rm = MMMMMYJXC ), , testcode = nil , argserrs =
- TestsCases , recursive level = 2 n/N = 8/8 , group = mathroman_groups_14_roman_group_13
n/N = 1/8, countonly=8, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_1( , i = 1 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 2/8, countonly=9, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_2( , i = 3 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 3/8, countonly=10, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_3( , i = 6 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 4/8, countonly=11, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_4( , rm = IV ), , testcode = nil , argserrs =
n/N = 5/8, countonly=12, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_5( , rm = V ), , testcode = nil , argserrs =
n/N = 6/8, countonly=13, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_6( , rm = III ), , testcode = nil , argserrs =
n/N = 7/8, countonly=14, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_7( , rm = VI ), , testcode = nil , argserrs =
n/N = 8/8, countonly=15, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_8( , rm = I ), , testcode = nil , argserrs =
- TestsCases , recursive level = 1 n/N = 4/4 , group = mathroman_tests_recursive_9
n/N = 1/4, countonly=4, sub_count=0, name = mathroman_tests_recursive_9_roman2int_1( , rm = XIJ ), , testcode = nil , argserrs =
n/N = 3/4, countonly=6, sub_count=0, name = mathroman_tests_recursive_9_roman2int_3( , rm = MCXI ), , testcode = nil , argserrs =

Tasks to open?

T00000: Add module and library types in scribunto ?
T00001: Sorted tableview do not sort date-time, in template and in module.
T00002: In a dropbox after \n* the content is after the box. Better define the case. Insert "\n------" before correct that. Try that out of fr.wikisource, in test2 or mediawiki...
T00003: bindI18N() after bindmodules to protect sought translatios against un-sought ones.
T00011: Sorted tableview do not sort date-time
T00012: In a dropbox after \n* the content is not inside the box. Better define the case. Insert "\n------" before to correct that.
T00013: Insert and mask structured datas and errors in resulting wikitext for bots. In xml or json or template style.
T00014: Display changes in test_init() arguments, in a dropbox.
T00015: Convert some groups of functions as new objects types: tableview with its headers and options, luatable() and its luatablecount(), dropbox() and dropdownfunc() and their options, get{} output from centre.get_module_and_time() for modules and libraries.

Blocked tasks

task T41610: Scribunto should support global module invocations

task T127354: Consider helping some smaller Wikipedias' communities

task T122086: RFC: Sharing templates and modules between wikis - poor man's version (investigation)

task T89598: Convert Template:Authority_control to Lua and use Wikidata

Blocking tasks

Some blocking tasks are detected by the module itself.

Mediawiki recursive TestsCases

TestsCases mathroman: int2roman(2013) = MMXIII, roman2int(MMXVI) = 2016,
- TestsCases , recursive level = 1 n/N = 13/13 , group = mathroman_groups_1
n/N = 1/13, countonly=13, sub_count=0, name = mathroman_groups_1_int2roman_1( , i = -11 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 2/13, countonly=14, sub_count=0, name = mathroman_groups_1_int2roman_2( , i = 0 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 3/13, countonly=15, sub_count=0, name = mathroman_groups_1_int2roman_3( , i = 12 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 4/13, countonly=16, sub_count=0, name = mathroman_groups_1_int2roman_4( , i = 17 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 5/13, countonly=17, sub_count=0, name = mathroman_groups_1_int2roman_5( , i = 18 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 6/13, countonly=18, sub_count=0, name = mathroman_groups_1_int2roman_6( , i = 19 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 7/13, countonly=19, sub_count=0, name = mathroman_groups_1_int2roman_7( , i = 111 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 8/13, countonly=20, sub_count=0, name = mathroman_groups_1_int2roman_8( , i = 444 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 9/13, countonly=21, sub_count=0, name = mathroman_groups_1_int2roman_9( , i = 555 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 10/13, countonly=22, sub_count=0, name = mathroman_groups_1_int2roman_10( , i = 777 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 11/13, countonly=23, sub_count=0, name = mathroman_groups_1_int2roman_11( , i = 1111 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 12/13, countonly=24, sub_count=0, name = mathroman_groups_1_int2roman_12( , i = 4999 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 13/13, countonly=25, sub_count=0, name = mathroman_groups_1_int2roman_13( , i = 5000 ), , testcode = nil , argserrs = mathroman_null_value_err-0
- TestsCases , recursive level = 1 n/N = 8/32 , group = mathroman_groups_14
n/N = 1/32, countonly=32, sub_count=0, name = mathroman_groups_14_roman2int_1( , rm = -X ), , testcode = nil , argserrs =
n/N = 2/32, countonly=33, sub_count=0, name = mathroman_groups_14_roman2int_2( , rm = 0 ), , testcode = nil , argserrs =
n/N = 3/32, countonly=34, sub_count=0, name = mathroman_groups_14_roman2int_3( , rm = ), , testcode = nil , argserrs =
n/N = 4/32, countonly=35, sub_count=0, name = mathroman_groups_14_roman2int_4( , rm = MCXI ), , testcode = nil , argserrs =
n/N = 5/32, countonly=36, sub_count=0, name = mathroman_groups_14_roman2int_5( , rm = XIJ ), , testcode = nil , argserrs =
n/N = 6/32, countonly=37, sub_count=0, name = mathroman_groups_14_roman2int_6( , rm = XJI ), , testcode = nil , argserrs =
n/N = 7/32, countonly=38, sub_count=0, name = mathroman_groups_14_roman2int_7( , rm = XIA ), , testcode = nil , argserrs =
n/N = 8/32, countonly=39, sub_count=0, name = mathroman_groups_14_roman2int_8( , rm = VLD ), , testcode = nil , argserrs =
n/N = 9/32, countonly=40, sub_count=0, name = mathroman_groups_14_roman2int_9( , rm = IXC ), , testcode = nil , argserrs =
n/N = 10/32, countonly=41, sub_count=0, name = mathroman_groups_14_roman2int_10( , rm = MMMMCMXCIX ), , testcode = nil , argserrs =
n/N = 11/32, countonly=42, sub_count=0, name = mathroman_groups_14_roman2int_11( , rm = MMMMM ), , testcode = nil , argserrs =
n/N = 12/32, countonly=43, sub_count=0, name = mathroman_groups_14_roman2int_12( , rm = MMMMMYJXC ), , testcode = nil , argserrs =
- TestsCases , recursive level = 2 n/N = 8/8 , group = mathroman_groups_14_roman_group_13
n/N = 1/8, countonly=8, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_1( , i = 1 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 2/8, countonly=9, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_2( , i = 3 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 3/8, countonly=10, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_3( , i = 6 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 4/8, countonly=11, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_4( , rm = IV ), , testcode = nil , argserrs =
n/N = 5/8, countonly=12, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_5( , rm = V ), , testcode = nil , argserrs =
n/N = 6/8, countonly=13, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_6( , rm = III ), , testcode = nil , argserrs =
n/N = 7/8, countonly=14, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_7( , rm = VI ), , testcode = nil , argserrs =
n/N = 8/8, countonly=15, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_8( , rm = I ), , testcode = nil , argserrs =
- TestsCases , recursive level = 1 n/N = 4/4 , group = mathroman_tests_recursive_9
n/N = 1/4, countonly=4, sub_count=0, name = mathroman_tests_recursive_9_roman2int_1( , rm = XIJ ), , testcode = nil , argserrs =
n/N = 3/4, countonly=6, sub_count=0, name = mathroman_tests_recursive_9_roman2int_3( , rm = MCXI ), , testcode = nil , argserrs =

Important support tasks

task T53660: Detect the edit state to adapt help messages to user errors.

To show edit or test mode only in edit state.

task T68051: Get the user language to help admins to maintain a module or a template

Permit to use the same module in many languages in many projects. This enlarge the use of modules in many more small wikis. This also enhanse the mean abilities of modules for a same global effort.
Help helpers, from large wikis in their own langages, to help small wikis in other languages. Example: display a category in the helper language and link to the category in wiki language.

task T119978: Get the own module name and last record date-time from each module

This task is necessary to reduce human errors:
to rightly collect /I18N translations,
and for a more confident versions management.
search this task id below for details.

task T122752: #invoke seems do not record the module

This task is a true bug which impacts the versions management.
But the centre library correct it for the main module. Other modules come by require() and are not impacted.
In most other uses, this bug has no impact.

See

tools.task_T122752_get_state() -- Detect T122752 : #invoke seems do not record the module
tools.task_T122752_correct_once() -- Debug T122752 : #invoke seems do not record the module

Central repository tasks

These tasks impact the final stage of true central usage.
But the full development of central libraries is possible without central repository.
And the use of central libraries is possible in any local wiki with exactly the same modules, and only new i18n tranlations.

task T121470: Central Global Repository for Templates, Lua modules, and Gadgets

task T52329: We need a common repository for Scribunto modules and templates

task T41610: Scribunto should support global module invocations

Marginal tasks

These tasks are interesting to optimize somefunctions but have no link to any central aspects.

task T48160: Lua: Allow using labels in mw.wikibase.entity.formatPropertyValues

task T63958: Use existing $dateFormats to format dates on Wikidata

task T85412: The formatPropertyValues needs an option to format data from date-time, angle or geographic coordinates

task T75460: [Story] Make Luafunctions default to the user's language on multilingual wikis

task T85419: User groups should be exposed to Scribunto ( This permit to adapt errors and warning for administrators or modules coders )

Documentations examples

{{{1}}}

, label = Nelson Mandela , , birthyear = 1918 , deathyear = 2013 , int2roman = nil , roman2int = nil , int2roman = nil
This module can translate 208 sentences in 3 languages: English(en=English), español(es=Spanish), français(fr=French),

{{#invoke:Central|doc|tools_tasks_table_report_title}} ?

States table of known tasks

* = ( detected state )
Used colors: , Resolved = task already completed , args = task replaced by arguments or by the module , other = other tasks

Number	Status	Title
Important	-	-
T53660	Open	Detect the edit state to adapt help messages to user errors
T68051	args	Give at modules the user language to display errors and categories names for him - ( detected state )
T119978	Invalid	Get the own module name and last record date-time from each module
T85419	Open	User groups should be exposed to Scribunto
T122752	get corrected Resolved	#invoke do not record the main module in package.loaded - ( detected state )
T67507	Closed	It should be possible to get entity id from page title. See EntityIdLookup::getEntityIdForTitle.
T123196	Resolved	Access to item from talk page
T133498	Open	Any title in wikibase can give its item id to modules - ( detected state )
Central	-	-
T121470	Open	Central Global Repository for Templates, Lua modules, and Gadgets
T135845	Open	Convert any module as central or centralisable
T52329	Stalled	We need a common repository for Scribunto modules and templates
T41610	Resolved	Scribunto should support global module invocations
Marginal	-	-
T63958	Open	Use existing $dateFormats to format dates on Wikidata
T85412	Open	The formatPropertyValues needs an option to format data from date-time, angle or geographic coordinates
T75460	Resolved	[Story] Make Lua functions default to the user's language on multilingual wikis

Mediawiki recursive TestsCases

TestsCases mathroman: int2roman(2013) = MMXIII, roman2int(MMXVI) = 2016,
- TestsCases , recursive level = 1 n/N = 13/13 , group = mathroman_groups_1
n/N = 1/13, countonly=13, sub_count=0, name = mathroman_groups_1_int2roman_1( , i = -11 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 2/13, countonly=14, sub_count=0, name = mathroman_groups_1_int2roman_2( , i = 0 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 3/13, countonly=15, sub_count=0, name = mathroman_groups_1_int2roman_3( , i = 12 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 4/13, countonly=16, sub_count=0, name = mathroman_groups_1_int2roman_4( , i = 17 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 5/13, countonly=17, sub_count=0, name = mathroman_groups_1_int2roman_5( , i = 18 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 6/13, countonly=18, sub_count=0, name = mathroman_groups_1_int2roman_6( , i = 19 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 7/13, countonly=19, sub_count=0, name = mathroman_groups_1_int2roman_7( , i = 111 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 8/13, countonly=20, sub_count=0, name = mathroman_groups_1_int2roman_8( , i = 444 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 9/13, countonly=21, sub_count=0, name = mathroman_groups_1_int2roman_9( , i = 555 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 10/13, countonly=22, sub_count=0, name = mathroman_groups_1_int2roman_10( , i = 777 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 11/13, countonly=23, sub_count=0, name = mathroman_groups_1_int2roman_11( , i = 1111 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 12/13, countonly=24, sub_count=0, name = mathroman_groups_1_int2roman_12( , i = 4999 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 13/13, countonly=25, sub_count=0, name = mathroman_groups_1_int2roman_13( , i = 5000 ), , testcode = nil , argserrs = mathroman_null_value_err-0
- TestsCases , recursive level = 1 n/N = 8/32 , group = mathroman_groups_14
n/N = 1/32, countonly=32, sub_count=0, name = mathroman_groups_14_roman2int_1( , rm = -X ), , testcode = nil , argserrs =
n/N = 2/32, countonly=33, sub_count=0, name = mathroman_groups_14_roman2int_2( , rm = 0 ), , testcode = nil , argserrs =
n/N = 3/32, countonly=34, sub_count=0, name = mathroman_groups_14_roman2int_3( , rm = ), , testcode = nil , argserrs =
n/N = 4/32, countonly=35, sub_count=0, name = mathroman_groups_14_roman2int_4( , rm = MCXI ), , testcode = nil , argserrs =
n/N = 5/32, countonly=36, sub_count=0, name = mathroman_groups_14_roman2int_5( , rm = XIJ ), , testcode = nil , argserrs =
n/N = 6/32, countonly=37, sub_count=0, name = mathroman_groups_14_roman2int_6( , rm = XJI ), , testcode = nil , argserrs =
n/N = 7/32, countonly=38, sub_count=0, name = mathroman_groups_14_roman2int_7( , rm = XIA ), , testcode = nil , argserrs =
n/N = 8/32, countonly=39, sub_count=0, name = mathroman_groups_14_roman2int_8( , rm = VLD ), , testcode = nil , argserrs =
n/N = 9/32, countonly=40, sub_count=0, name = mathroman_groups_14_roman2int_9( , rm = IXC ), , testcode = nil , argserrs =
n/N = 10/32, countonly=41, sub_count=0, name = mathroman_groups_14_roman2int_10( , rm = MMMMCMXCIX ), , testcode = nil , argserrs =
n/N = 11/32, countonly=42, sub_count=0, name = mathroman_groups_14_roman2int_11( , rm = MMMMM ), , testcode = nil , argserrs =
n/N = 12/32, countonly=43, sub_count=0, name = mathroman_groups_14_roman2int_12( , rm = MMMMMYJXC ), , testcode = nil , argserrs =
- TestsCases , recursive level = 2 n/N = 8/8 , group = mathroman_groups_14_roman_group_13
n/N = 1/8, countonly=8, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_1( , i = 1 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 2/8, countonly=9, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_2( , i = 3 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 3/8, countonly=10, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_3( , i = 6 ), , testcode = nil , argserrs = mathroman_null_value_err-0
n/N = 4/8, countonly=11, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_4( , rm = IV ), , testcode = nil , argserrs =
n/N = 5/8, countonly=12, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_5( , rm = V ), , testcode = nil , argserrs =
n/N = 6/8, countonly=13, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_6( , rm = III ), , testcode = nil , argserrs =
n/N = 7/8, countonly=14, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_7( , rm = VI ), , testcode = nil , argserrs =
n/N = 8/8, countonly=15, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_8( , rm = I ), , testcode = nil , argserrs =
- TestsCases , recursive level = 1 n/N = 4/4 , group = mathroman_tests_recursive_9
n/N = 1/4, countonly=4, sub_count=0, name = mathroman_tests_recursive_9_roman2int_1( , rm = XIJ ), , testcode = nil , argserrs =
n/N = 3/4, countonly=6, sub_count=0, name = mathroman_tests_recursive_9_roman2int_3( , rm = MCXI ), , testcode = nil , argserrs =

Test of Wikidata arbitrary access

Wikidata for another Title: Q535, Victor Hugo ( 1802 - 1885 ) ⦁ Datas from Wikidata , 376 properties.
Sought properties: , sitelink = nil , label = Victor Hugo , deathyear = 1885 , country = France , description = nil , birthyear = 1802 , itemid2 = Q535 , itemid = Q535
Wikidata for another Title: Q8023, Nelson Mandela ( 1918 - 2013 ) ⦁ Datas from Wikidata , 245 properties.
Sought properties: , sitelink = nil , label = Nelson Mandela , deathyear = 2013 , country = South Africa , description = nil , birthyear = 1918 , itemid2 = Q8023 , itemid = Q8023

Mediawiki recursive TestsCases

TestsCases mathroman: int2roman(2013) = MMXIII, roman2int(MMXVI) = 2016,

TestsCases , recursive level = 1 n/N = 13/13 , group = mathroman_groups_1

n/N = 1/13, countonly=13, sub_count=0, name = mathroman_groups_1_int2roman_1( , i = -11 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 2/13, countonly=14, sub_count=0, name = mathroman_groups_1_int2roman_2( , i = 0 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 3/13, countonly=15, sub_count=0, name = mathroman_groups_1_int2roman_3( , i = 12 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 4/13, countonly=16, sub_count=0, name = mathroman_groups_1_int2roman_4( , i = 17 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 5/13, countonly=17, sub_count=0, name = mathroman_groups_1_int2roman_5( , i = 18 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 6/13, countonly=18, sub_count=0, name = mathroman_groups_1_int2roman_6( , i = 19 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 7/13, countonly=19, sub_count=0, name = mathroman_groups_1_int2roman_7( , i = 111 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 8/13, countonly=20, sub_count=0, name = mathroman_groups_1_int2roman_8( , i = 444 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 9/13, countonly=21, sub_count=0, name = mathroman_groups_1_int2roman_9( , i = 555 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 10/13, countonly=22, sub_count=0, name = mathroman_groups_1_int2roman_10( , i = 777 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 11/13, countonly=23, sub_count=0, name = mathroman_groups_1_int2roman_11( , i = 1111 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 12/13, countonly=24, sub_count=0, name = mathroman_groups_1_int2roman_12( , i = 4999 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 13/13, countonly=25, sub_count=0, name = mathroman_groups_1_int2roman_13( , i = 5000 ), , testcode = nil , argserrs = mathroman_null_value_err-0

TestsCases , recursive level = 1 n/N = 8/32 , group = mathroman_groups_14

n/N = 1/32, countonly=32, sub_count=0, name = mathroman_groups_14_roman2int_1( , rm = -X ), , testcode = nil , argserrs =

n/N = 2/32, countonly=33, sub_count=0, name = mathroman_groups_14_roman2int_2( , rm = 0 ), , testcode = nil , argserrs =

n/N = 3/32, countonly=34, sub_count=0, name = mathroman_groups_14_roman2int_3( , rm = ), , testcode = nil , argserrs =

n/N = 4/32, countonly=35, sub_count=0, name = mathroman_groups_14_roman2int_4( , rm = MCXI ), , testcode = nil , argserrs =

n/N = 5/32, countonly=36, sub_count=0, name = mathroman_groups_14_roman2int_5( , rm = XIJ ), , testcode = nil , argserrs =

n/N = 6/32, countonly=37, sub_count=0, name = mathroman_groups_14_roman2int_6( , rm = XJI ), , testcode = nil , argserrs =

n/N = 7/32, countonly=38, sub_count=0, name = mathroman_groups_14_roman2int_7( , rm = XIA ), , testcode = nil , argserrs =

n/N = 8/32, countonly=39, sub_count=0, name = mathroman_groups_14_roman2int_8( , rm = VLD ), , testcode = nil , argserrs =

n/N = 9/32, countonly=40, sub_count=0, name = mathroman_groups_14_roman2int_9( , rm = IXC ), , testcode = nil , argserrs =

n/N = 10/32, countonly=41, sub_count=0, name = mathroman_groups_14_roman2int_10( , rm = MMMMCMXCIX ), , testcode = nil , argserrs =

n/N = 11/32, countonly=42, sub_count=0, name = mathroman_groups_14_roman2int_11( , rm = MMMMM ), , testcode = nil , argserrs =

n/N = 12/32, countonly=43, sub_count=0, name = mathroman_groups_14_roman2int_12( , rm = MMMMMYJXC ), , testcode = nil , argserrs =

TestsCases , recursive level = 2 n/N = 8/8 , group = mathroman_groups_14_roman_group_13

n/N = 1/8, countonly=8, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_1( , i = 1 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 2/8, countonly=9, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_2( , i = 3 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 3/8, countonly=10, sub_count=0, name = mathroman_groups_14_roman_group_13_int2roman_3( , i = 6 ), , testcode = nil , argserrs = mathroman_null_value_err-0

n/N = 4/8, countonly=11, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_4( , rm = IV ), , testcode = nil , argserrs =

n/N = 5/8, countonly=12, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_5( , rm = V ), , testcode = nil , argserrs =

n/N = 6/8, countonly=13, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_6( , rm = III ), , testcode = nil , argserrs =

n/N = 7/8, countonly=14, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_7( , rm = VI ), , testcode = nil , argserrs =

n/N = 8/8, countonly=15, sub_count=0, name = mathroman_groups_14_roman_group_13_roman2int_8( , rm = I ), , testcode = nil , argserrs =

TestsCases , recursive level = 1 n/N = 4/4 , group = mathroman_tests_recursive_9

n/N = 1/4, countonly=4, sub_count=0, name = mathroman_tests_recursive_9_roman2int_1( , rm = XIJ ), , testcode = nil , argserrs =

n/N = 3/4, countonly=6, sub_count=0, name = mathroman_tests_recursive_9_roman2int_3( , rm = MCXI ), , testcode = nil , argserrs =

Convert a module as centralisable

Translate arguments, errors, categories...

Translate arguments names (and their descriptions), errors, categories, title...

p.i18n.en = { -- English
	mode 						= "mode", -- All arguments must be translated in all languages to operate.
	mode_descr					= "Type of use of the module or template: read, edit, doc, test.", -- Describe the argument for documentation.
	options 					= "options",
	options_descr				= "Options to form the module or model result.",
	firstname					= 'firstname', -- Other argument and description
	firstname_descr				= "First name. Please specify to correct the sort key.",
	mathroman_J_before_end_err	= "character J before the end", -- Example of error.
	mathroman_dig2romtest_title = "Test from digital to roman numbers", -- Example of title of a group of tests.
	tools_language_cat			= 'Speaking %1', -- Example of category.
	tools_date_to_part_call_cat	= "Module with internal error", -- Several errors are grouped in a same category, defined at translation level.
	tools_needed_to_verify		= "(required, to be checked)", -- In the list of arguments, an argument is needed
}

Define arguments

All arguments must be translated in all languages to operate.

p.args_known = { -- Table of the definitions of all known arguments at module level.
	birthyear =		{typ = "dat", need = 0, keyword = "birthyear", prop = "P569", format = "year"},
	firstname =		{typ = "dat", need = 0, keyword = "firstname"},
}

Initialize a module

p.options_for_modes = { -- default options
	read	= " noerr ",
	doc		= " noerr nobox nocat ",
	edit	= " : catview docview docdef docline docsrc docdata ",
	tests	= " : catview docview docdef docline docsrc docdata tests ",
	-- Option nocat means "Do not categorize and do not show categories."
}

function p.read(frame) -- Forms the text to read by users.
	local res = ""
	centre.init(frame, p.args_known, "read", p.options_for_modes)
	tools.args_final = p.interact_args_final(tools.args_import) -- Interactions between arguments
	res = res .. p.form_result() -- forms the resulting wikitext
	return res
end -- function p.read(frame)

Minimal centalisable module

A module without interface can form translated errors or categories in any function, without any p.interface(frame) functions.

It can also use translated arguments and/or form report to display later if sought.

The centre library and the mathroman library are in this case.

Any module using central library can contain, or none, internal translations in english and some other languages.

Minimal example:

p.i18n.en = { -- Define translations of arguments names, categories names, and errors messages to produce.
	birthyear = "birthyear", -- example
	centre_luatable_counts = "%1 variables, %2 functions, %3 sub-tables", -- example
} -- p.i18n.en

p.args_known = { -- Define all known arguments at the main module level.
	birthyear = {typ = "dat", need = 0, list = 2, keyword = "birthyear", prop = "P569", format = "year"},
} -- p.args_known

p.options_for_modes = { -- default options
	read	= " noerr ",
}

function p.read(frame) -- Forms the text to read for users.
	local res = ""
	centre.init(frame, p.args_known, "read", p.options_for_modes) -- Default init from the centre library.
	res = res .. "Hello world !" -- Forms the resulting wikitext
	return res
end -- function p.read(frame)

Modes and options

Really used options come from p.options_for_modes and from options arguments.

Modes are composed of options to choose what and how to display. Default modes:

p.options_for_modes = { -- default options
	read	= " noerr ",
	doc		= " noerr nobox nocat ",
	edit	= " : catview docview docdef docline docsrc docdata ",
	tests	= " : catview docview docdef docline docsrc docdata tests ",
	-- Option nocat means "Do not categorize and do not show categories."
}

function p.read(frame) -- Normal use for simple readers of pages
	local res = ""
	centre.init(frame, p.args_known, "read", p.options_for_modes) -- Default init from the centre library.
	res = res .. try.form_result() -- Forms the resulting wikitext
end

function p.doc(frame) -- To include some pieces of documentations directly from the module in its template or module documentation page.
	centre.init(frame, p.args_known, "doc", p.options_for_modes) -- Default init from the centre library.
	res = res .. tools.dropdownfunc(select, "tools_similar_args_test_title", tools.similar_args_test)
end

function p.edit(frame) -- To support the user to modify arguments in case of errors. To light support of helpers in their own laguages.
	centre.init(frame, p.args_known, "edit", p.options_for_modes) -- Default init from the centre library.
	res = res .. formDocBox() -- A panel to help users when they dit the use of a template or module.
	-- With a dropbox for helpers, displaying availables languages, versions used, number of admins in a wiki...
	res = res .. try.form_result() -- Forms the resulting wikitext
end

function p.tests(frame) -- The most extended support for helpers.
	centre.init(frame, p.args_known, "tests", p.options_for_modes) -- Default init from the centre library.
	res = res .. formDocBox() -- A panel to help users when they dit the use of a template or module.
	-- With a dropbox for helpers, displaying availables languages, versions used, number of admins in a wiki...
	res = res .. try.form_result() -- Forms the resulting wikitext
	res = res .. try.testsview("allwaysview")
end

p.options_for_modes = { -- default options					for anyother mode
	read	= " noerr ",
	doc		= " noerr nobox nocat ",
	edit	= " : catview docview docdef docline docsrc docdata ",
	tests	= " : catview docview docdef docline docsrc docdata tests ",
	anyother = " noerr other noother ", -- Other mode, to manage in code.
}

Versions management

Each centralisable main module can start with a definition of alternative versions of its sub-modules.

Then its versions management is available.

p.versions = { -- Modules dependencies. Dependencias del módulo. Dépendances du module.
	versionName = "Main", versionNumber = "1.03", versionDate = "2016-04-27 23:23",
	sought = "Main, Box 2, Item.3", -- Sought module and submodules versions
	known = " Main,Main2 * Box,Box 2 * Item,Item.2,Item.3 ", -- Known module and submodules versions
}

Template or invoke arguments can replace soughtversions and knownversions to try them without record, or in a test template.

In known versions, the first of each group of versions is the normal one and can replace any other if not available.

The versions management require() adequate versions of submodules to test, following known and sought versions, like Module:Vers2.4.

This versions management reports versions: used, errors, missing or replaced by normal ones... then helpers can better select and understand what happens.

Any helper of main module can select versions of its submodules from internal arguments or from template arguments.

When the developer copies or rename this file in a new version, he can forget to adapt that definition and then disturb the versions management.

To reduce this risk, each module need to know its own name.

To document the version date-time, we need that for each module or sub-module.

See the task task T119978: Get the own module name and last record date-time from each module

{{#invoke:Central | doc | dockey = tools_bindmodules_test_title | itemid = Q535 }}

Test for management of modules versions

tools.versions_management_test : The selector = Box3, Group, Item1 means: check these modules versions among those available.
loaded_vers : Table of all loaded modules, or simulation.
Simulate existing versions:

Sought versions	Used versions	ACTUAL: Errors in the active module
,Central,	,,	vers.request sought: Central in the main module: Central known: ,Central, loaded list: ,Central, comment:
Sought versions	Used versions	SIMULATION: Errors in the active module
,Box,	,Box,	normal modules sought: Box in the main module: Box known: ,Box, loaded list: ,Box, comment: normal module for Box, with alias like : `local Box = require("Box")`
,Box,	,Box, Box/I18N,	normal with /I18N sought: Box in the main module: Box known: ,Box, loaded list: ,Box, Box/I18N, comment: I18N translations for Box
,Box2,	,Box, Box/I18N, Box2, Box2/I18N,	normal replace known alternate sought: Box2 in the main module: Box2 ⦁ The module Box replaces the missing sub-module in the main module Box2. known: ,Box, Box2, loaded list: ,Box, Box/I18N, Box2, Box2/I18N, comment: alternate version module for Box
,Box,	,Box2, Box2/I18N, Box3, Box3/I18N,	missing actual module sought: Box in the main module: Box2 ⦁ The module Box misses in the main module Box2. ⦁ The module Box is unknown in the main module Box2. ⦁ The module Box2 replaces the missing sub-module in the main module Box2. ⦁ The module Box3 replaces the missing sub-module in the main module Box2. known: ,Box2, Box3, loaded list: ,Box2, Box2/I18N, Box3, Box3/I18N, comment: I18N translations without basic module. Form an alert.
,Group,	,Group, Group/I18N,	normal sub-module sought: Group in the main module: Box known: ,Group, loaded list: ,Group, Group/I18N, comment: normal module for Group
,Box, Group,	,Box,	unknown sought version sought: Box,Group in the main module: Box ⦁ The module Group misses in the main module Box. ⦁ The module Group is unknown in the main module Box. known: ,Box, loaded list: ,Box, comment: Mask this to test missing sought version
,Box, Group,	,Box,	sub-module not exists sought: Box,Group in the main module: Box known: ,Box * Group, loaded list: ,Box, comment: I18N translations for the normal module Group
,Box, Group2,	,Box, Box/I18N, Box2, Box2/I18N, Group, Group/I18N, Group2, Group2/I18N,	normal sub-module with normal /18N sought: Box,Group2 in the main module: Box3 ⦁ The module Box2 replaces the missing sub-module in the main module Box3. ⦁ The module Group replaces the missing sub-module in the main module Box3. known: ,Box, Box2 * Group, Group2, loaded list: ,Box, Box/I18N, Box2, Box2/I18N, Group, Group/I18N, Group2, Group2/I18N, comment: normal alternate sub-module Group for Group2
,Box, Group2,	,Box, Box/I18N, Box2, Box2/I18N, Group, Group/I18N, Group2, Group2/I18N,	unknown module for /18N sub-module sought: Box,Group2 in the main module: Box3 ⦁ The module Box2 replaces the missing sub-module in the main module Box3. ⦁ The module Group replaces the missing sub-module in the main module Box3. known: ,Box, Box2 * Group, Group2, loaded list: ,Box, Box/I18N, Box2, Box2/I18N, Group, Group/I18N, Group2, Group2/I18N, comment: normal alternate sub-module Group for Group2
,Box, Group2,	,Box/I18N, Box2, Box2/I18N, Group, Group/I18N, Group2, Group2/I18N,	missing module Box for /18N sub-module sought: Box,Group2 in the main module: Box3 ⦁ The module Box2 replaces the missing sub-module in the main module Box3. ⦁ The module Group replaces the missing sub-module in the main module Box3. known: ,Box, Box2 * Group, Group2, loaded list: ,Box/I18N, Box2, Box2/I18N, Group, Group/I18N, Group2, Group2/I18N, comment: normal alternate sub-module Group for Group2
,Box,	,Box,	not central module, without i18n sought: Box in the main module: Jocker known: ,Box, loaded list: ,Box, comment: Any module can have no i18n table.
,Jocker.2,	,,	unknown and not sought actual module sought: Jocker.2 in the main module: Jocker known: ,Jocker.2, loaded list: ,Box, comment: Any module can be outside of the central system.
Sought versions	Used versions	SIMULATION: Errors in the active module

The table below simulates loaded modules for behind tests cases.

Title	Version	Date	i18n	Translations / Languages
Box	Box	2015-12-02 02:02	table	normal module for Box, with alias like : `local Box = require("Box")`
Box/I18N	Box	2016-05-07 18:36	table	I18N translations for Box
Box3	Box2	2016-05-07 11:11	table	alternate version module for Box
Box2/I18N	Box2	2016-05-07 19:19	table	I18N translations without basic module. Form an alert.
Group	Box		table	normal module for Group
Group4	Box	2015-12-11 11:11	table	Mask this to test missing sought version
Group/I18N	Box	2016-05-07 22:2	table	I18N translations for the normal module Group
Group2	Box3	2016-05-07 05:05	table	normal alternate sub-module Group for Group2
Group2	Box3	2016-05-07 05:05	table	normal alternate sub-module Group for Group2
Group2	Box3	2016-05-07 05:05	table	normal alternate sub-module Group for Group2
Jocker	Jocker	2015-12-21 11:33	nil	Any module can have no i18n table.
Jocker	Jocker	2015-12-21 11:33	table	Any module can be outside of the central system.

, Number of versions simulated: = 12

Mediawiki recursive TestsCases

TestsCases mathroman: int2roman(2013) = MMXIII, roman2int(MMXVI) = 2016,

TestsCases , recursive level = 1 n/N = 13/13 , group = mathroman_groups_1