1 files changed, 0 insertions, 140 deletions
diff --git a/Mac/Lib/dbmac.py b/Mac/Lib/dbmac.py
deleted file mode 100644
index 0588dbd..0000000
--- a/Mac/Lib/dbmac.py
+++ /dev/null
@@ -1,140 +0,0 @@
-"""A slow but simple dbm clone for the Mac.
-
-For database spam, spam.dir contains the index (a text file),
-spam.bak *may* contain a backup of the index (also a text file),
-while spam.dat contains the data (a binary file).
-
-XXX TO DO:
-
-- reclaim free space (currently, space once occupied by deleted or expanded
-items is never reused)
-
-- support concurrent access (currently, if two processes take turns making
-updates, they can mess up the index)
-
-- support efficient access to large databases (currently, the whole index
-is read when the database is opened, and some updates rewrite the whole index)
-
-- support opening for read-only (flag = 'm')
-
-"""
-
-_os = __import__('os')
-import __builtin__
-
-_open = __builtin__.open
-
-_BLOCKSIZE = 512
-
-class _Database:
-
-	def __init__(self, file):
-		self._dirfile = file + '.dir'
-		self._datfile = file + '.dat'
-		self._bakfile = file + '.bak'
-		# Mod by Jack: create data file if needed
-		try:
-			f = _open(self._datfile, 'r')
-		except IOError:
-			f = _open(self._datfile, 'w')
-		f.close()
-		self._update()
-	
-	def _update(self):
-		self._index = {}
-		try:
-			f = _open(self._dirfile)
-		except IOError:
-			pass
-		else:
-			while 1:
-				line = f.readline()
-				if not line: break
-				key, (pos, siz) = eval(line)
-				self._index[key] = (pos, siz)
-			f.close()
-
-	def _commit(self):
-		try: _os.unlink(self._bakfile)
-		except _os.error: pass
-		try: _os.rename(self._dirfile, self._bakfile)
-		except _os.error: pass
-		f = _open(self._dirfile, 'w')
-		for key, (pos, siz) in self._index.items():
-			f.write("%s, (%s, %s)\n" % (`key`, `pos`, `siz`))
-		f.close()
-	
-	def __getitem__(self, key):
-		pos, siz = self._index[key]	# may raise KeyError
-		f = _open(self._datfile, 'rb')
-		f.seek(pos)
-		dat = f.read(siz)
-		f.close()
-		return dat
-	
-	def _addval(self, val):
-		f = _open(self._datfile, 'rb+')
-		f.seek(0, 2)
-		pos = f.tell()
-## Does not work under MW compiler
-##		pos = ((pos + _BLOCKSIZE - 1) / _BLOCKSIZE) * _BLOCKSIZE
-##		f.seek(pos)
-		npos = ((pos + _BLOCKSIZE - 1) / _BLOCKSIZE) * _BLOCKSIZE
-		f.write('\0'*(npos-pos))
-		pos = npos
-		
-		f.write(val)
-		f.close()
-		return (pos, len(val))
-	
-	def _setval(self, pos, val):
-		f = _open(self._datfile, 'rb+')
-		f.seek(pos)
-		f.write(val)
-		f.close()
-		return pos, (val)
-	
-	def _addkey(self, key, (pos, siz)):
-		self._index[key] = (pos, siz)
-		f = _open(self._dirfile, 'a')
-		f.write("%s, (%s, %s)\n" % (`key`, `pos`, `siz`))
-		f.close()
-	
-	def __setitem__(self, key, val):
-		if not type(key) == type('') == type(val):
-			raise TypeError, "dbmac keys and values must be strings"
-		if not self._index.has_key(key):
-			(pos, siz) = self._addval(val)
-			self._addkey(key, (pos, siz))
-		else:
-			pos, siz = self._index[key]
-			oldblocks = (siz + _BLOCKSIZE - 1) / _BLOCKSIZE
-			newblocks = (len(val) + _BLOCKSIZE - 1) / _BLOCKSIZE
-			if newblocks <= oldblocks:
-				pos, siz = self._setval(pos, val)
-				self._index[key] = pos, siz
-			else:
-				pos, siz = self._addval(val)
-				self._index[key] = pos, siz
-			self._addkey(key, (pos, siz))
-	
-	def __delitem__(self, key):
-		del self._index[key]
-		self._commit()
-	
-	def keys(self):
-		return self._index.keys()
-	
-	def has_key(self, key):
-		return self._index.has_key(key)
-	
-	def __len__(self):
-		return len(self._index)
-	
-	def close(self):
-		self._index = self._datfile = self._dirfile = self._bakfile = None
-
-
-def open(file, flag = None, mode = None):
-	# flag, mode arguments are currently ignored
-	return _Database(file)