Property talk:P1406

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script directionality
direction that a writing system goes in

Description	Directionality of writing system
Represents	script directionality (Q12055124)
Data type	Item
Domain	According to this template: writing systems (alphabets, abugidas, etc.) According to statements in the property: notation (Q2001982) When possible, data should only be stored as statements
Allowed values	According to this template: items with subclass of (P279) => script directionality (Q17321709) - one of this list - such as : left-to-right (Q17321844), right-to-left (Q7333457), bi-directional text (Q856986), mirror writing (Q835937), vertical or horizontal (Q889482), top-to-bottom (Q17321917), bottom-to-top (Q17322076), ambigram (Q221552), boustrophedon (Q194233)... According to statements in the property: left-to-right (Q17321844), right-to-left (Q7333457), bi-directional text (Q856986), mirror writing (Q835937), vertical or horizontal (Q889482), top-to-bottom (Q17321917), bottom-to-top (Q17322076), ambigram (Q221552), boustrophedon (Q194233), left-to-right and top-down (Q68108898), vertical left-to-right (Q105395085), vertical right-to-left (Q105395084) or spiral writing (Q99518851) When possible, data should only be stored as statements
Example	Osmanya (Q1377866) → left-to-right (Q17321844) Latin script (Q8229) → left-to-right (Q17321844)
Source	http://www.w3.org/International/questions/qa-scripts http://www.ontopia.net/i18n/directions.jsp http://www.omniglot.com/writing/direction.htm
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P1406 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 389 Main statement 363 93.3% of uses Qualifier 26 6.7% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

One of left-to-right (Q17321844), right-to-left (Q7333457), bi-directional text (Q856986), mirror writing (Q835937), vertical or horizontal (Q889482), top-to-bottom (Q17321917), bottom-to-top (Q17322076), ambigram (Q221552), boustrophedon (Q194233), left-to-right and top-down (Q68108898), vertical left-to-right (Q105395085), vertical right-to-left (Q105395084), spiral writing (Q99518851): value must be one of the specified items. Please expand list if needed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1406#One of, values statistics, SPARQL

Type “notation (Q2001982)”: item must contain property “instance of (P31)” with classes “notation (Q2001982)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1406#Type Q2001982, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1406#Entity types

Scope is as main value (Q54828448), as qualifier (Q54828449): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1406#Scope, SPARQL

This property is being used by: ca:Plantilla:Infotaula sistema d'escriptura ast:Plantía:Ficha de sistema d'escritura es:Plantilla:Ficha de sistema de escritura ru:Шаблон:Письменность uz:Andoza:Yozuv bilgiqutisi ga:Teimpléad:WD Bosca Sonraí Córais Scríbhneoireachta Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Wikimedia projects

Should we expand the domain to include Wikipedia language edition (Q10876391)? --Infovarius (talk) 08:41, 10 January 2016 (UTC)

The question to ask might be if we can derive this from another property or not. If there a few items where we can't, should we list these rather as exceptions.
--- Jura 09:35, 10 January 2016 (UTC)

No please, absolutely not. The items about Wikimedia projects should just specify what language they are in, and that's it. If you need to figure out what directionality they use, you should query the item on a project to find out what language it is in, then query the language to find out what script it uses. Putting this (and related) property in the items for Wikimedia projects is a completely backwards approach. Jon Harald Søby (talk) 20:41, 10 January 2016 (UTC)

I added an introduction at Wikidata:Database_reports/WMF_projects. Don't hesitate to correct/improve/expand it.
--- Jura 10:42, 11 January 2016 (UTC)

Request one-of constraint (Q21510859) extension

I request that the one-of constraint (Q21510859) list for this script directionality (P1406) be extended with two new script directionality (Q12055124) items:

vertical right-to-left (Q105395084) (applicable for sinograms (Q8201), Han)

vertical left-to-right (Q105395085) (applicable for Mongolian (Q1055705))

These are more specific than top-to-bottom (Q17321917); talk, which does not specify column direction (rtl, ltr?).

Existing top-to-bottom (Q17321917) does not need change (though items might be edited into a different value, as noted applicable). -DePiep (talk) 20:11, 8 February 2021 (UTC)