@stdlib/string/tools/grapheme-cluster-break/README.md

String manipulation functions.

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# grapheme

> Grapheme cluster break tooling.

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## Usage

```javascript
var grapheme = require( '@stdlib/string/tools/grapheme-cluster-break' );
```

#### grapheme

A collection of functions for performing grapheme cluster break operations.

* * *

### Methods

#### grapheme.breakProperty( code )

Returns the grapheme break property from the [Unicode Standard][unicode-grapheme-break-property].

```javascript
var out = grapheme.breakProperty( 0x008f );
// returns 2

out = grapheme.breakProperty( 0x111C2 );
// returns 12

out = grapheme.breakProperty( 0x1F3FC );
// returns 3
```

#### grapheme.emojiProperty( code )

Returns the emoji property from the [Unicode Standard][unicode-emoji-property].

```javascript
var out = grapheme.emojiProperty( 0x23EC );
// returns 101

out = grapheme.emojiProperty( 0x1FFFE );
// returns 11
```

#### grapheme.breakType( breaks, emoji )

Returns the break type between grapheme breaking classes according to _UAX #29 3.1.1 Grapheme Cluster Boundary Rules_ on extended grapheme clusters.

```javascript
var out = grapheme.breakType( [ 11, 3, 11 ], [ 11, 11, 11 ] );
// returns 1
```

* * *

### Properties

#### grapheme.constants

An object mapping break type names to integer values.

```javascript
var out = grapheme.constants;
// returns {...}
```

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## Examples

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```javascript
var grapheme = require( '@stdlib/string/tools/grapheme-cluster-break' );

var out = grapheme.breakProperty( 0x008f );
// returns 2

out = grapheme.emojiProperty( 0x23EC );
// returns 101

out = grapheme.breakType( [ 11, 3, 11 ], [ 11, 11, 11 ] );
// returns 1

out = grapheme.constants;
// returns {...}
```

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[unicode-grapheme-break-property]: https://www.unicode.org/Public/13.0.0/ucd/auxiliary/GraphemeBreakProperty.txt

[unicode-emoji-property]: https://www.unicode.org/Public/13.0.0/ucd/emoji/emoji-data.txt

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