Carbon ATSUI text APIs

E736599

Apple developer technology Carbon API text layout and rendering API

Carbon ATSUI text APIs were Apple’s legacy Mac OS X text layout and rendering interfaces designed to support advanced typography during the transition from classic Mac OS to modern OS X technologies.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
Apple Type Services for Unicode Imaging	2
Carbon ATSUI text APIs canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T8471717 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Carbon ATSUI text APIs
Context triple: [Mac OS X transition technologies, includes, Carbon ATSUI text APIs]

A. Uniscribe
Uniscribe is a Windows text layout and shaping engine that provides complex script support, including advanced rendering and typographic features for scripts such as Arabic.
B. Core Text
Core Text is a macOS text layout and font-handling framework that provides low-level, high-performance text rendering and typographic capabilities for Cocoa applications.
C. Unicode text processing algorithms
Unicode text processing algorithms are standardized procedures that define how Unicode text is compared, sorted, segmented, normalized, and otherwise manipulated consistently across different systems and languages.
D. OpenType font technology
OpenType font technology is a scalable, cross-platform font format developed by Microsoft and Adobe that supports advanced typographic features such as ligatures, contextual substitutions, and complex script shaping.
E. Unicode ICU
Unicode ICU (International Components for Unicode) is a widely used open-source library that provides robust, cross-platform support for Unicode text handling, internationalization, and localization in software applications.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Carbon ATSUI text APIs
Target entity description: Carbon ATSUI text APIs were Apple’s legacy Mac OS X text layout and rendering interfaces designed to support advanced typography during the transition from classic Mac OS to modern OS X technologies.

A. Uniscribe
Uniscribe is a Windows text layout and shaping engine that provides complex script support, including advanced rendering and typographic features for scripts such as Arabic.
B. Core Text
Core Text is a macOS text layout and font-handling framework that provides low-level, high-performance text rendering and typographic capabilities for Cocoa applications.
C. Unicode text processing algorithms
Unicode text processing algorithms are standardized procedures that define how Unicode text is compared, sorted, segmented, normalized, and otherwise manipulated consistently across different systems and languages.
D. OpenType font technology
OpenType font technology is a scalable, cross-platform font format developed by Microsoft and Adobe that supports advanced typographic features such as ligatures, contextual substitutions, and complex script shaping.
E. Unicode ICU
Unicode ICU (International Components for Unicode) is a widely used open-source library that provides robust, cross-platform support for Unicode text handling, internationalization, and localization in software applications.
F. None of above. chosen

Statements (45)

Predicate	Object
instanceOf	Apple developer technology ⓘ Carbon API ⓘ text layout and rendering API ⓘ
abbreviation	ATSUI ⓘ
APIStyle	procedural API ⓘ
basedOn	Apple Type Services for Unicode Imaging ⓘ linked to: Carbon ATSUI text APIs
category	Mac OS X graphics and text technologies ⓘ
designedFor	transition from classic Mac OS to Mac OS X ⓘ
developer	Apple Inc. ⓘ
documentationType	Apple Developer Documentation ⓘ
era	early Mac OS X era ⓘ
operatingSystem	Mac OS X ⓘ linked to: macOS classic Mac OS ⓘ linked to: Classic Mac OS
partOf	Carbon framework ⓘ
primaryUse	text layout ⓘ text rendering ⓘ
programmingLanguage	C ⓘ
provides	font metrics access ⓘ glyph layout control ⓘ low-level text shaping ⓘ
relatedTo	Core Graphics ⓘ linked to: Quartz 2D Quartz 2D ⓘ QuickDraw ⓘ linked to: Carbon QuickDraw APIs
replacedBy	Cocoa text system ⓘ linked to: Core Text Core Text ⓘ
status	deprecated ⓘ
supports	AAT (Apple Advanced Typography) features ⓘ OpenType layout features ⓘ Unicode text ⓘ advanced typography ⓘ bidirectional text ⓘ complex text layout ⓘ font features ⓘ glyph substitution ⓘ international text rendering ⓘ kerning ⓘ ligatures ⓘ vertical text layout ⓘ
targetPlatform	Mac OS X ⓘ linked to: macOS PowerPC Macintosh ⓘ linked to: Power Macintosh early Intel-based Mac computers ⓘ
usedBy	Carbon applications ⓘ
usedFor	desktop publishing applications ⓘ rendering localized user interfaces ⓘ word processing applications ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Mac OS X transition technologies → includes → Carbon ATSUI text APIs ⓘ

ATSUI → fullName → Apple Type Services for Unicode Imaging ⓘ

linked to: Carbon ATSUI text APIs

Carbon ATSUI text APIs → basedOn → Apple Type Services for Unicode Imaging ⓘ