### Find all emoji in a string

Source: https://github.com/sigpwned/emoji4j/blob/main/README.md

This example demonstrates how to use GraphemeMatcher to find all emoji within a given text string.

```java
GraphemeMatcher m=new GraphemeMatcher(text);
while(m.find()) {
    System.out.println("Found grapheme "+m.grapheme().getName());
}
```

--------------------------------

### Find only emoji (as opposed to all image graphemes)

Source: https://github.com/sigpwned/emoji4j/blob/main/README.md

This example shows how to filter the found graphemes to include only those of type EMOJI, excluding other image graphemes.

```java
GraphemeMatcher m=new GraphemeMatcher(text);
while(m.find()) {
    if(m.grapheme().getType() == Grapheme.Type.EMOJI) {
        System.out.println("Found emoji "+m.grapheme().getName());
    }
}
```

--------------------------------

### Replace all emoji with their names

Source: https://github.com/sigpwned/emoji4j/blob/main/README.md

This snippet shows how to replace all detected emoji in a string with their corresponding names using a lambda expression.

```java
text = new GraphemeMatcher(text).replaceAll(mr -> mr.grapheme().getName());
```

--------------------------------

### Is string all emojis?

Source: https://github.com/sigpwned/emoji4j/wiki/Cookbook

Checks if a string consists entirely of emoji characters.

```Java
/**
 * @param input The string to test
 * @return {@code true} if the given string is made up entirely of graphemes, or {@code false} otherwise.
 *         The empty string is considered to be all emoji.
 */
public static boolean isStringAllEmoji(String input) {
  AtomicBoolean result = new AtomicBoolean(input.isEmpty());
  newGraphemeMatcher(input).results().forEachOrdered(new Consumer<GraphemeMatchResult>() {
    private boolean onto = true;
    private int lastEnd = 0;

    @Override
    public void accept(GraphemeMatchResult m) {
      if (m.start() != lastEnd)
        onto = false;
      lastEnd = m.end();
      result.set(onto && lastEnd == input.length());
    }
  });
  return result.get();
}

// isStringAllEmoji("")              → true
// isStringAllEmoji("👩👩🏼👩🏽👩🏾👩🏿")      → true
// isStringAllEmoji("👩 👩🏼 👩🏽 👩🏾 👩🏿")  → false
// isStringAllEmoji("Hello, world!") → false
```

--------------------------------

### Count emoji in string

Source: https://github.com/sigpwned/emoji4j/wiki/Cookbook

Counts the number of emoji characters in a given string.

```Java
/**
 * @param input The string to count
 * @return The number of emoji in the given string
 */
public static long countEmoji(String input) {
  return newGraphemeMatcher(input).results().count();
}

// countEmoji("alpha bravo charlie")      → 0L
// countEmoji("alpha 🙂 bravo 🙂 charlie") → 2L
```