* misc/offsets.py (added):

Add a script to calculate list of offsets based on AccurateRip's
	  online database, according to popularity.

ChangeLog

@@ -1,3 +1,9 @@
+2010-03-14  Thomas Vander Stichele  <thomas at apestaart dot org>
+
+	* misc/offsets.py (added):
+	  Add a script to calculate list of offsets based on AccurateRip's
+	  online database, according to popularity.
+
 2010-02-28  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* morituri/common/encode.py:

misc/offsets.py

@@ -0,0 +1,71 @@
+# -*- Mode: Python -*-
+# vi:si:et:sw=4:sts=4:ts=4
+
+# show all possible offsets, in order of popularity, from a download of
+# http://www.accuraterip.com/driveoffsets.htm
+
+import sys
+
+import BeautifulSoup
+
+handle = open(sys.argv[1])
+
+doc = handle.read()
+
+soup = BeautifulSoup.BeautifulSoup(doc)
+
+offsets = {} # offset -> total count
+
+rows = soup.findAll('tr')
+for row in rows:
+    columns = row.findAll('td')
+    if len(columns) == 4:
+        first, second, third, fourth = columns
+        name = first.find(text=True)
+        offset = second.find(text=True)
+        count = third.find(text=True)
+
+        # only use sensible offsets
+        try:
+            int(offset)
+        except:
+            continue
+
+        if offset not in offsets.keys():
+            offsets[offset] = 0
+        # first line is text, so int will fail with ValueError
+        # purged entries will have None as count, so TypeError
+        try:
+            offsets[offset] += int(count)
+        except (ValueError, TypeError):
+            pass
+
+# now sort offsets by count
+counts = []
+for offset, count in offsets.items():
+    counts.append((count, offset))
+
+counts.sort()
+counts.reverse()
+
+offsets = []
+for count, offset in counts:
+    offsets.append(offset)
+
+# now format it for code inclusion
+lines = []
+line = 'OFFSETS = "'
+
+for offset in offsets:
+    line += offset + ", "
+    if len(line) > 60:
+        line += "\" + \\"
+        lines.append(line)
+        line = '          "'
+
+# get last line too, trimming the comma and adding the quote
+if len(line) > 11:
+    line = line[:-2] + '"'
+    lines.append(line)
+
+print "\n".join(lines)