twitter_sentiment_analysis_emmys2022_preprocess_emoji.py

def handle_emojis(tweet):
    # Smile -- :), : ), :-), (:, ( :, (-:, :')
    tweet = re.sub(r'(:\s?\)|:-\)|\(\s?:|\(-:|:\'\))', ' EMO_POS ', tweet)
    # Laugh -- :D, : D, :-D, xD, x-D, XD, X-D
    tweet = re.sub(r'(:\s?D|:-D|x-?D|X-?D)', ' EMO_POS ', tweet)
    # Love -- <3, :*
    tweet = re.sub(r'(<3|:\*)', ' EMO_POS ', tweet)
    # Wink -- ;-), ;), ;-D, ;D, (;,  (-;
    tweet = re.sub(r'(;-?\)|;-?D|\(-?;)|😉', ' EMO_POS ', tweet)
    # Sad -- :-(, : (, :(, ):, )-:
    tweet = re.sub(r'(:\s?\(|:-\(|\)\s?:|\)-:)', ' EMO_NEG ', tweet)
    # Cry -- :,(, :'(, :"(
    tweet = re.sub(r'(:,\(|:\'\(|:"\()', ' EMO_NEG ', tweet)

    return tweet


def remove_emoji(string):
    emoji_pattern = re.compile("["
                           u"\U0001F600-\U0001F64F" # emoticons
                           u"\U0001F300-\U0001F5FF" # symbols & pictographs
                           u"\U0001F680-\U0001F6FF" # transport & map symbols
                           u"\U0001F1E0-\U0001F1FF" # flags (iOS)
                           u"\U00002500-\U00002BEF"  # chinese char
                           u"\U00002702-\U000027B0"
                           u"\U00002702-\U000027B0"
                           u"\U000024C2-\U0001F251"
                           u"\U0001f926-\U0001f937"
                           u"\U00010000-\U0010ffff"
                           u"\u2640-\u2642"
                           u"\u2600-\u2B55"
                           u"\u200d"
                           u"\u23cf"
                           u"\u23e9"
                           u"\u231a"
                           u"\ufe0f"  # dingbats
                           u"\u3030"
                           "]+", flags=re.UNICODE)
    
    return emoji_pattern.sub(r'', string)