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# BEDirectionalTextRange

Modifications to text length based on its offset.

```
struct BEDirectionalTextRange
```

## Overview

This class encapsulates instructions that modify a text selection. In a given instance, the sign of [`length`](/documentation/BrowserEngineKit/BEDirectionalTextRange/length) determines the selection direction from its [`offset`](/documentation/BrowserEngineKit/BEDirectionalTextRange/offset). Positive length indicates moving the selection forward in the string, whereas a negative  [`length`](/documentation/BrowserEngineKit/BEDirectionalTextRange/length) moves the selection backward in the string. For example, applying a directional text range of `{ -6, -2 }` to the selection “world” in the string “Hello world” results in the selection, “Hel”.

## Topics

### Creating a directional text range

[`init()`](/documentation/BrowserEngineKit/BEDirectionalTextRange/init())

Creates an empty directional text range.

[`init(offset:length:)`](/documentation/BrowserEngineKit/BEDirectionalTextRange/init(offset:length:))

Creates a range for a text selection that also specifies a direction.

### Measuring text range

[`length`](/documentation/BrowserEngineKit/BEDirectionalTextRange/length)

The number of characters included in the directional text range.

[`offset`](/documentation/BrowserEngineKit/BEDirectionalTextRange/offset)

The starting position of the directional text range within the text.


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