def encode_high(data, columns, security_level):
"""Converts the input string to high level code words.
Including the length indicator and the error correction words, but without
padding.
"""
# Encode data to code words
data_words = list(compact(data))
data_count = len(data_words)
# Get the padding to align data to column count
ec_count = 2**(security_level + 1)
padding_words = get_padding(data_count, ec_count, columns)
padding_count = len(padding_words)
# Check the generated bar code's size is within specification parameters
validate_barcode_size(data_count, ec_count, padding_count, columns)
# Length includes the data CWs, padding CWs and the specifier itself
length = data_count + padding_count + 1
# Join encoded data with the length specifier and padding
extendend_words = [length] + data_words + padding_words
# Calculate error correction words
ec_words = compute_error_correction_code_words(extendend_words,
security_level)
return extendend_words + ec_words
def do_compact(str):
return list(compact(to_bytes(str)))