Matecat\EmojiParser\Emoji

Complexity

Total Complexity

10

Size/Duplication

Total Lines	59
Duplicated Lines	0 %

Importance

Changes	2
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	generateReverseMap()	0	5	2
A	toEmoji()	0	11	3
A	generateMap()	0	3	2
A	toEntity()	0	11	3

<?php

namespace Matecat\EmojiParser;

class Emoji {

    private static $chmap            = [];
    private static $inverse_char_map = [];

    /**
     * Generate the char map
     */
    private static function generateMap() {
        if ( empty( self::$chmap ) ) {
            self::$chmap = include_once 'chmap.php';
        }
    }

    /**
     * Generate the inverse char map
     */
    private static function generateReverseMap() {
        self::generateMap();

        if ( empty( self::$inverse_char_map ) ) {
            self::$inverse_char_map = array_flip( self::$chmap );
        }
    }

    /**
     * @param $str
     *
     * @return string
     */
    public static function toEntity( $str ) {
        self::generateMap();
        $letters = preg_split( '//u', $str, null, PREG_SPLIT_NO_EMPTY );

        foreach ( $letters as $letter ) {
            if ( isset ( self::$chmap[ $letter ] ) ) {
                $str = str_replace( $letter, self::$chmap[ $letter ], $str );
            }
        }

        return $str;
    }

    /**
     * @param $str
     *
     * @return string
     */
    public static function toEmoji( $str ) {
        self::generateReverseMap();
        preg_match_all( '/&#[0-9a-fA-F]+;/', $str, $emoji_entity_list, PREG_PATTERN_ORDER );

        foreach ( $emoji_entity_list[ 0 ] as $emoji_entity ) {
            if ( array_key_exists( $emoji_entity, self::$inverse_char_map ) ) {
                $str = str_replace( $emoji_entity, self::$inverse_char_map[ $emoji_entity ], $str );
            }
        }

        return $str;
    }

}