Module net.fellbaum.jemoji

Package net.fellbaum.jemoji.internal

Class EmojiUtils

java.lang.Object

net.fellbaum.jemoji.internal.EmojiUtils

public final class EmojiUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final char	EMOJI_VARIATION_CHARACTER
static final char	TEXT_VARIATION_CHARACTER

Method Summary

Modifier and Type	Method	Description
static String	addColonToAlias(String alias)
static boolean	checkIfCodepointIsInvalidEmojiStarter(int currentCodepoint)	Checks if the codepoint is a valid starter character for any EmojiType.
static Optional<List<Emoji>>	findEmojiByEitherAlias(Map<CodepointSequence,List<Emoji>> map, String alias)
static @Nullable NonUniqueEmojiFoundResult	findNonUniqueEmoji(int[] textCodePointsArray, int textIndex, long textCodePointsLength)	Finds a unique emoji starting at the position textIndex in the textCodePointsArray.
static @Nullable UniqueEmojiFoundResult	findUniqueEmoji(int[] textCodePointsArray, int textIndex, long textCodePointsLength, EmojiType type)	Finds a unique emoji starting at the position textIndex in the textCodePointsArray.
static int	getCodePointCount(String string)
static boolean	isStringNullOrEmpty(@Nullable String string)
static String	removeColonFromAlias(String alias)
static int[]	stringToCodePoints(String text)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

TEXT_VARIATION_CHARACTER

public static final char TEXT_VARIATION_CHARACTER

See Also:

• Constant Field Values

EMOJI_VARIATION_CHARACTER

public static final char EMOJI_VARIATION_CHARACTER

See Also:

• Constant Field Values

Method Details

getCodePointCount

public static int getCodePointCount(String string)

isStringNullOrEmpty

public static boolean isStringNullOrEmpty(@Nullable String string)

removeColonFromAlias

public static String removeColonFromAlias(String alias)

addColonToAlias

public static String addColonToAlias(String alias)

findEmojiByEitherAlias

public static Optional<List<Emoji>> findEmojiByEitherAlias(Map<CodepointSequence,List<Emoji>> map,
 String alias)

stringToCodePoints

public static int[] stringToCodePoints(String text)

findUniqueEmoji

public static @Nullable UniqueEmojiFoundResult findUniqueEmoji(int[] textCodePointsArray,
 int textIndex,
 long textCodePointsLength,
 EmojiType type)

Finds a unique emoji starting at the position textIndex in the textCodePointsArray.

Parameters:

textCodePointsArray - The textCodePointsArray to check if it contains an emoji.

textIndex - The current text index.

textCodePointsLength - The length of the textCodePointsArray.

type - The EmojiType to check the codepoint against.

Returns:

The found emoji, otherwise null.

findNonUniqueEmoji

public static @Nullable NonUniqueEmojiFoundResult findNonUniqueEmoji(int[] textCodePointsArray,
 int textIndex,
 long textCodePointsLength)

Finds a unique emoji starting at the position textIndex in the textCodePointsArray.

Parameters:

textCodePointsArray - The textCodePointsArray to check if it contains an emoji.

textIndex - The current text index.

textCodePointsLength - The length of the textCodePointsArray.

Returns:

The found emoji, otherwise null.

checkIfCodepointIsInvalidEmojiStarter

public static boolean checkIfCodepointIsInvalidEmojiStarter(int currentCodepoint)

Checks if the codepoint is a valid starter character for any EmojiType. This avoids running unnecessary for loops which take ~1ms longer.

Parameters:

currentCodepoint - The codepoint to check.

Returns:

Whether the codepoint is a valid starter.