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# AVCaption.TextCombine

The caption’s supported rendering policy options.

```
enum TextCombine
```

## Overview

Text combine is a special rendering policy that combines multiple characters into one unit and presents it in upright position in a vertical text flow. This presentation achieves a horizontal-in-vertical layout (or Tate-Chu-Yoko layout), which lets the caption render a horizontal text string in vertical text.

## Topics

### Text combine options

[`AVCaption.TextCombine.all`](/documentation/AVFoundation/AVCaption/TextCombine/all)

An option that combines all of the characters.

[`AVCaption.TextCombine.none`](/documentation/AVFoundation/AVCaption/TextCombine/none)

An option that doesn’t combine text upright.

[`AVCaption.TextCombine.oneDigit`](/documentation/AVFoundation/AVCaption/TextCombine/oneDigit)

An option that makes one digit upright.

[`AVCaption.TextCombine.twoDigits`](/documentation/AVFoundation/AVCaption/TextCombine/twoDigits)

An option that combines two consecutive digits.

[`AVCaption.TextCombine.threeDigits`](/documentation/AVFoundation/AVCaption/TextCombine/threeDigits)

An option that combines three consecutive digits.

[`AVCaption.TextCombine.fourDigits`](/documentation/AVFoundation/AVCaption/TextCombine/fourDigits)

An option that combines four consecutive digits.


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