import argparse
import string

def extract_start_with(filename, prefix):
    """Extract words starting with the given prefix from a file."""
    words = []
    with open(filename, 'r') as f:
        for line in f:
            for word in line.split():
                cleaned_word = word.strip(string.punctuation).lower()
                if cleaned_word.startswith(prefix.lower()):
                    words.append(cleaned_word)
    return words

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Extract words starting with a given prefix")
    parser.add_argument("--file", default="k.txt", help="File to read from (default: k.txt)", dest='filename')
    parser.add_argument("--start-with", default="k", help="Prefix to filter words (default: k)", dest='start_with')
    parser.add_argument("--strip-duplicates", action=argparse.BooleanOptionalAction, dest='strip_duplicates', 
                        default=True, help="Handling duplicate words (default: Strip duplicates)")    
    parser.add_argument("--sort", action=argparse.BooleanOptionalAction, dest='sort', 
                        default=True, help="Handling sorting words (default: Sort)")    
    args = parser.parse_args()
    
    result = extract_start_with(args.filename, args.start_with)

    if args.strip_duplicates == True:
        result = list(dict.fromkeys(result))
    if args.sort == True:
        result.sort()

    print(*result, sep="\n")