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# CTCharacterCollection

Constants that specify character collections.

```
enum CTCharacterCollection
```

## Topics

### Constants

[`CTCharacterCollection.identityMapping`](/documentation/CoreText/CTCharacterCollection/identityMapping)

The character identifier is equal to the glyph index.

[`CTCharacterCollection.adobeCNS1`](/documentation/CoreText/CTCharacterCollection/adobeCNS1)

The Adobe-CNS1 mapping.

[`CTCharacterCollection.adobeGB1`](/documentation/CoreText/CTCharacterCollection/adobeGB1)

The Adobe-GB1 mapping.

[`CTCharacterCollection.adobeJapan1`](/documentation/CoreText/CTCharacterCollection/adobeJapan1)

The Adobe-Japan1 mapping.

[`CTCharacterCollection.adobeJapan2`](/documentation/CoreText/CTCharacterCollection/adobeJapan2)

The Adobe-Japan2 mapping.

[`CTCharacterCollection.adobeKorea1`](/documentation/CoreText/CTCharacterCollection/adobeKorea1)

The Adobe-Korea1 mapping.

### Deprecated

[`kCTIdentityMappingCharacterCollection`](/documentation/CoreText/CTCharacterCollection/kCTIdentityMappingCharacterCollection)

The character identifier is equal to the glyph index.

[`kCTAdobeCNS1CharacterCollection`](/documentation/CoreText/CTCharacterCollection/kCTAdobeCNS1CharacterCollection)

The Adobe-CNS1 mapping.

[`kCTAdobeGB1CharacterCollection`](/documentation/CoreText/CTCharacterCollection/kCTAdobeGB1CharacterCollection)

The Adobe-GB1 mapping.

[`kCTAdobeJapan1CharacterCollection`](/documentation/CoreText/CTCharacterCollection/kCTAdobeJapan1CharacterCollection)

The Adobe-Japan1 mapping.

[`kCTAdobeJapan2CharacterCollection`](/documentation/CoreText/CTCharacterCollection/kCTAdobeJapan2CharacterCollection)

The Adobe-Japan2 mapping.

[`kCTAdobeKorea1CharacterCollection`](/documentation/CoreText/CTCharacterCollection/kCTAdobeKorea1CharacterCollection)

The Adobe-Korea1 mapping.


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