Added hexdump class

2023-03-29 21:05:13 -07:00
parent dbddf120fa
commit 8f30f2b39b
1 changed files with 35 additions and 0 deletions
@@ -0,0 +1,35 @@
+class Hexdumper:
+    def naive_hexdump(s):
+        b = 0
+        for c in s:
+            print(f"{ord(c):<0x}")
+            b += 1
+            if b >= 15:
+                print("\n")
+    def read_chunk(byte_array, chunk_size=16):
+        for i in range(0, len(byte_array), chunk_size):
+            yield byte_array[i:i + chunk_size]
+    def hexdump(s):
+        b = 0
+        bytes = s.encode("UTF-8")
+        for linebytes in Hexdumper.read_chunk(bytes):
+            # Print byte offset (column 1)
+            print(f"{b:>08x} ", end='')
+            # Print hex bytes (column 2)
+            for c in linebytes:
+                print(f"{c:0x} ", end='')
+                b += 1
+            # Add padding to get to column 3 if we haven't printed 16 hex bytes
+            if b % 16 != 0:
+                print(" " * (48-((b % 16)*3)), end='')
+            # Print characters (column 4)
+            for c in linebytes:
+                if c > 32 and c <= 127:
+                    print(f"{chr(c)}", end='')
+                else:
+                    print("?", end='')
+            print("")
+
+if __name__ == "__main__":
+    Hexdumper.hexdump("🐶🐮✅🌭🐱🐶🐮✅🌭🌭🌭🌭")
+    Hexdumper.hexdump("abcdef[]093840.: )@#u,p03UX)")