hexdump: skip lines if the content is the same

over/misc.py

@@ -110,7 +110,7 @@ def debugger():
 
 # --------------------------------------------------
 
-def hexdump(data, indent=0, width=16, show_header=True, show_offsets=True, show_ascii=True, use_colors=True, initial_offset=0, output=sys.stdout):
+def hexdump(data, indent=0, width=16, show_header=True, show_offsets=True, show_ascii=True, use_colors=True, initial_offset=0, output=sys.stdout, skip_same=True):
 	"""
 	Writes a hex dump of `data` to `output`.
 	
@@ -120,6 +120,7 @@ def hexdump(data, indent=0, width=16, show_header=True, show_offsets=True, show_
 	If `show_ascii` is True, each line is suffixed with its ASCII representation. Unprintable characters
 	are replaced with a dot.
 	The `output` must implement a .write(str x) method. If `output` is None, the string is returned instead.
+	If `skip_same` is True, lines with identical content are abbreviated (omitted).
 	
 	@while creating a hex dump
 	"""
@@ -153,13 +154,10 @@ def hexdump(data, indent=0, width=16, show_header=True, show_offsets=True, show_
 		
 		output_io.write(" ".join(line) + "\n")
 	
+	skip_cnt = 0
+	last_hex_bytes = None
+	
 	while data[ptr:]:
-		if indent:
-			output_io.write(" " * indent)
-		
-		if show_offsets:
-			output_io.write(format_str %(initial_offset + ptr))
-		
 		hex_bytes = []
 		ascii_bytes = []
 		
@@ -175,6 +173,29 @@ def hexdump(data, indent=0, width=16, show_header=True, show_offsets=True, show_
 			elif i == len(data):
 				hex_bytes.extend(["  "] * (width - local_i))
 		
+		ptr += width
+		
+		# the rest is just rendering
+		if skip_same:
+			if hex_bytes == last_hex_bytes:
+				skip_cnt += 1
+			else:
+				if skip_cnt:
+					output_io.write("(skipped %d lines, %d B)\n" %(skip_cnt, skip_cnt * width))
+				
+				skip_cnt = 0
+			
+			last_hex_bytes = hex_bytes
+			
+			if skip_cnt:
+				continue
+		
+		if indent:
+			output_io.write(" " * indent)
+		
+		if show_offsets:
+			output_io.write(format_str %(initial_offset + ptr))
+		
 		if use_colors: output_io.write(text.render("<W>"))
 		output_io.write(" ".join(hex_bytes))
 		if use_colors: output_io.write(text.render("<.>"))
@@ -185,8 +206,9 @@ def hexdump(data, indent=0, width=16, show_header=True, show_offsets=True, show_
 			output_io.write(text.render("<.>|") if use_colors else "|")
 		
 		output_io.write("\n")
-		
-		ptr += width
+	
+	if skip_cnt:
+		output_io.write("(skipped %d lines, %d B)\n" %(skip_cnt, skip_cnt * width))
 	
 	if not output:
 		output_io.seek(0)

over/version.py

@@ -4,5 +4,5 @@
 major = 2 # VERSION_MAJOR_IDENTIFIER
 minor = 1 # VERSION_MINOR_IDENTIFIER
 # VERSION_LAST_MM 2.1
-patch = 0 # VERSION_PATCH_IDENTIFIER
-str = "2.1.0" # VERSION_STRING_IDENTIFIER
+patch = 1 # VERSION_PATCH_IDENTIFIER
+str = "2.1.1" # VERSION_STRING_IDENTIFIER