v.0.2.1 is_letter_assigned_right

app/utils/utils.py

@@ -1,11 +1,63 @@
 import time
 
 
+def show_byte_matrix(char, matrix):
+	print(f'byte_matrix: char({char})')
+	matrix_str = [f'0x{byte:02X}' for byte in matrix]
+	[print(f'{matrix_str[idx]} {number_to_bitarray_msb(byte)}') for idx, byte in enumerate(matrix)]
+
+
 def number_to_bitarray_msb(number):
 	"""Convert 8-bit number to bit array (MSB first)"""
 	return [(number >> i) & 1 for i in range(7, -1, -1)]
 
 
+def is_letter_assigned_right(char, letter) -> bool:
+	"""Prüfe ob das Zeichen auch komplett nach rechts gezogen ist
+
+	Args:
+			letter (_type_): Array[0..nBytes]
+
+	Returns:
+			bool: _description_
+	"""
+
+	def isLetterRight(letter):
+		def isByteRight(byte):
+			return True if 1 & byte == 1 else False
+
+		for byte in letter:
+			if isByteRight(byte):
+				return True
+
+		return False
+
+	def shiftLetterRight(letter):
+		def shift(letter):
+			return [byte >> 1 for byte in letter]
+
+		shifted = letter
+		for i in range(8):  # max 1 Bit's
+			shifted = shift(shifted)
+			if isLetterRight(shifted):
+				break
+
+		return shifted
+
+	if isLetterRight(letter):
+		return True
+
+	# letter is not right shifted
+	shifted = shiftLetterRight(letter)
+
+	print('origin:')
+	show_byte_matrix(char, letter)
+	print('shifted')
+	show_byte_matrix(char, shifted)
+
+	return False
+
+
 def get_datetime_string(format='full'):
 	"""
 	Return date/time as string with different formats