solution/m1-010

projects/010-hexadecimal-and-decimal-digits/python/main.py

@@ -0,0 +1,49 @@
+import sys
+
+def hex2int(hexadecimal_digit):     
+    if len(hexadecimal_digit)==1:
+
+        hexadecimal_digit=ord(hexadecimal_digit)
+
+        if hexadecimal_digit>47 and hexadecimal_digit<58:
+            integer=int(chr(hexadecimal_digit))
+            return integer
+
+        elif hexadecimal_digit>64 and hexadecimal_digit<71:
+            integer=(hexadecimal_digit-65)+10
+            return integer
+
+        elif hexadecimal_digit>96 and hexadecimal_digit<103:
+            integer=(hexadecimal_digit-97)+10
+            return integer
+
+        else:
+            sys.exit("The parameter’s value is outside the expected range.")             
+    else:
+        sys.exit("The parameter’s value is outside the expected range.") 
+
+
+def int2hex(integer):
+    if integer.isdigit():
+
+        integer=int(integer)
+        if integer>-1 and integer<10:
+            hexadecimal_digit=integer
+            return hexadecimal_digit
+
+        if integer>9 and integer<16:
+            hexadecimal_digit=chr((integer-10)+65)
+            return hexadecimal_digit
+        else:
+            sys.exit("The parameter’s value is outside the expected range.")
+    else:
+        sys.exit("The parameter’s value is outside the expected range.")
+
+
+hexadecimal_digit=input("Enter a single hexadecimal digit to convert to a base 10 integer: ")
+result_hex2int=hex2int(hexadecimal_digit)
+print(f"{hexadecimal_digit} = {result_hex2int} (base 10 integer)")
+
+integer=input("Enter an integer between 0 and 15 to convert to a single hexadecimal digit: ")
+result_int2hex=int2hex(integer)
+print(f"{integer} = {result_int2hex} (base hexadecimal)")