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AccountUtl – Library module with functions about user accounts.

Functions for templates

All these functions expect just one parameter, which submits a presumable account name for analysis.

If not given, it will be derived from page title in user space and user talk space.

The is… return

“not empty” if that condition is met
empty, if the condition is not fulfilled

isAnon

Is username an anonymous account, matching either IP or temporary scheme?

isIP

Is this a valid IP, as IPv4 and formatted as submitted by Wiki software?

isTemp

Is this a temporary account as created by Wiki software?

isUser

Is this any valid account?

isValid

Is this name valid for registration?

scope

Type of a presumed account name

R – registration
I – IP
T – temporary
empty – invalid

signer

account name

empty – invalid

failsafe

The Failsafe interface is heading for version management of globally distributed Lua modules. It enables modules equipped with this interface to

ensure, that a library module required by a template or another module available as local copy does support certain functionality, or complain if not.
administrate global updating and linking of module codes via Wikidata.

The Failsafe interface is present both at template level and for direct Lua access.

The functions in detail are (not all supported yet completely by every library):

Parameter
Value	Result	current
nothing `false`	local version ID	»2026-04-15«
Minimal version	version ID required at least date in ISO format It will be compared whether the current local implementation matches this version or later. empty, if minimal version not achieved	2001-01-01 → »2026-04-15« 2099-01-01 → »«
`wikidata`	version ID of global upstream version ID at Wikidata local, if not found there	»2026-04-15«
`item`	ID of the Wikidata item empty if not defined	`Q139309150`
`~`	Corresponding version ID locally and registered at Wikidata empty, if up to date version ID at Wikidata, if not equal	»«
`@`	Is the current (module) page linked correctly with Wikidata item? empty, if linked to the item which is supposed Iitem ID, if not
The return value is in template programming empty or under Lua `false`, otherwis a non-empty string as described.

Examples (test page)

A test page illustrates practical use.

Functions for Lua modules (API)

All functions described above can be used by other modules:

local lucky, AccountUtl = pcall( require, "Module:AccountUtl" )
if type( AccountUtl ) == "table" then
    AccountUtl = AccountUtl()
else
    -- error case; AccountUtl contains error message
    return "<span class=\"error\">" .. AccountUtl .. "</span>"
end

Subsequently there are available:

with optional parameter exactly as for templates
returning true or false for is…
returning string or false for s…

AccountUtl.isAnon( ask )

AccountUtl.isIP( ask )

AccountUtl.isTemp( ask )

AccountUtl.isUser( ask )

AccountUtl.isValid( ask )

AccountUtl.scope( ask )

AccountUtl.signer( ask )

AccountUtl.failsafe( atleast )

Versioning interface

atleast
optional
nil or minimum version or wikidata or ~ for synchronisation

returns: Version ID as string or false

Usage

General library; no limitations.

Dependencies

No modules.