nannified

4 files changed, 375 insertions, 375 deletions

diff --git a/Demo/pdist/RCSProxy.py b/Demo/pdist/RCSProxy.py
index e29090c12a..7212ca6224 100755
--- a/Demo/pdist/RCSProxy.py
+++ b/Demo/pdist/RCSProxy.py
@@ -31,147 +31,147 @@ import rcslib
 class DirSupport:
 
     def __init__(self):
-	self._dirstack = []
+        self._dirstack = []
 
     def __del__(self):
-	self._close()
+        self._close()
 
     def _close(self):
-	while self._dirstack:
-	    self.back()
+        while self._dirstack:
+            self.back()
 
     def pwd(self):
-	return os.getcwd()
+        return os.getcwd()
 
     def cd(self, name):
-	save = os.getcwd()
-	os.chdir(name)
-	self._dirstack.append(save)
+        save = os.getcwd()
+        os.chdir(name)
+        self._dirstack.append(save)
 
     def back(self):
-	if not self._dirstack:
-	    raise os.error, "empty directory stack"
-	dir = self._dirstack[-1]
-	os.chdir(dir)
-	del self._dirstack[-1]
+        if not self._dirstack:
+            raise os.error, "empty directory stack"
+        dir = self._dirstack[-1]
+        os.chdir(dir)
+        del self._dirstack[-1]
 
     def listsubdirs(self, pat = None):
-	files = os.listdir(os.curdir)
-	files = filter(os.path.isdir, files)
-	return self._filter(files, pat)
+        files = os.listdir(os.curdir)
+        files = filter(os.path.isdir, files)
+        return self._filter(files, pat)
 
     def isdir(self, name):
-	return os.path.isdir(name)
+        return os.path.isdir(name)
 
     def mkdir(self, name):
-	os.mkdir(name, 0777)
+        os.mkdir(name, 0777)
 
     def rmdir(self, name):
-	os.rmdir(name)
+        os.rmdir(name)
 
 
 class RCSProxyLocal(rcslib.RCS, DirSupport):
 
     def __init__(self):
-	rcslib.RCS.__init__(self)
-	DirSupport.__init__(self)
+        rcslib.RCS.__init__(self)
+        DirSupport.__init__(self)
 
     def __del__(self):
-	DirSupport.__del__(self)
-	rcslib.RCS.__del__(self)
+        DirSupport.__del__(self)
+        rcslib.RCS.__del__(self)
 
     def sumlist(self, list = None):
-	return self._list(self.sum, list)
+        return self._list(self.sum, list)
 
     def sumdict(self, list = None):
-	return self._dict(self.sum, list)
+        return self._dict(self.sum, list)
 
     def sum(self, name_rev):
-	f = self._open(name_rev)
-	BUFFERSIZE = 1024*8
-	sum = md5.new()
-	while 1:
-	    buffer = f.read(BUFFERSIZE)
-	    if not buffer:
-		break
-	    sum.update(buffer)
-	self._closepipe(f)
-	return sum.digest()
+        f = self._open(name_rev)
+        BUFFERSIZE = 1024*8
+        sum = md5.new()
+        while 1:
+            buffer = f.read(BUFFERSIZE)
+            if not buffer:
+                break
+            sum.update(buffer)
+        self._closepipe(f)
+        return sum.digest()
 
     def get(self, name_rev):
-	f = self._open(name_rev)
-	data = f.read()
-	self._closepipe(f)
-	return data
+        f = self._open(name_rev)
+        data = f.read()
+        self._closepipe(f)
+        return data
 
     def put(self, name_rev, data, message=None):
-	name, rev = self._unmangle(name_rev)
-	f = open(name, 'w')
-	f.write(data)
-	f.close()
-	self.checkin(name_rev, message)
-	self._remove(name)
+        name, rev = self._unmangle(name_rev)
+        f = open(name, 'w')
+        f.write(data)
+        f.close()
+        self.checkin(name_rev, message)
+        self._remove(name)
 
     def _list(self, function, list = None):
-	"""INTERNAL: apply FUNCTION to all files in LIST.
+        """INTERNAL: apply FUNCTION to all files in LIST.
 
-	Return a list of the results.
+        Return a list of the results.
 
-	The list defaults to all files in the directory if None.
+        The list defaults to all files in the directory if None.
 
-	"""
-	if list is None:
-	    list = self.listfiles()
-	res = []
-	for name in list:
-	    try:
-		res.append((name, function(name)))
-	    except (os.error, IOError):
-		res.append((name, None))
-	return res
+        """
+        if list is None:
+            list = self.listfiles()
+        res = []
+        for name in list:
+            try:
+                res.append((name, function(name)))
+            except (os.error, IOError):
+                res.append((name, None))
+        return res
 
     def _dict(self, function, list = None):
-	"""INTERNAL: apply FUNCTION to all files in LIST.
+        """INTERNAL: apply FUNCTION to all files in LIST.
 
-	Return a dictionary mapping files to results.
+        Return a dictionary mapping files to results.
 
-	The list defaults to all files in the directory if None.
+        The list defaults to all files in the directory if None.
 
-	"""
-	if list is None:
-	    list = self.listfiles()
-	dict = {}
-	for name in list:
-	    try:
-		dict[name] = function(name)
-	    except (os.error, IOError):
-		pass
-	return dict
+        """
+        if list is None:
+            list = self.listfiles()
+        dict = {}
+        for name in list:
+            try:
+                dict[name] = function(name)
+            except (os.error, IOError):
+                pass
+        return dict
 
 
 class RCSProxyServer(RCSProxyLocal, server.SecureServer):
 
     def __init__(self, address, verbose = server.VERBOSE):
-	RCSProxyLocal.__init__(self)
-	server.SecureServer.__init__(self, address, verbose)
+        RCSProxyLocal.__init__(self)
+        server.SecureServer.__init__(self, address, verbose)
 
     def _close(self):
-	server.SecureServer._close(self)
-	RCSProxyLocal._close(self)
+        server.SecureServer._close(self)
+        RCSProxyLocal._close(self)
 
     def _serve(self):
-	server.SecureServer._serve(self)
-	# Retreat into start directory
-	while self._dirstack: self.back()
+        server.SecureServer._serve(self)
+        # Retreat into start directory
+        while self._dirstack: self.back()
 
 
 def test_server():
     import string
     import sys
     if sys.argv[1:]:
-	port = string.atoi(sys.argv[1])
+        port = string.atoi(sys.argv[1])
     else:
-	port = 4127
+        port = 4127
     proxy = RCSProxyServer(('', port))
     proxy._serverloop()
 
@@ -179,19 +179,19 @@ def test_server():
 def test():
     import sys
     if not sys.argv[1:] or sys.argv[1] and sys.argv[1][0] in '0123456789':
-	test_server()
-	sys.exit(0)
+        test_server()
+        sys.exit(0)
     proxy = RCSProxyLocal()
     what = sys.argv[1]
     if hasattr(proxy, what):
-	attr = getattr(proxy, what)
-	if callable(attr):
-	    print apply(attr, tuple(sys.argv[2:]))
-	else:
-	    print `attr`
+        attr = getattr(proxy, what)
+        if callable(attr):
+            print apply(attr, tuple(sys.argv[2:]))
+        else:
+            print `attr`
     else:
-	print "%s: no such attribute" % what
-	sys.exit(2)
+        print "%s: no such attribute" % what
+        sys.exit(2)
 
 
 if __name__ == '__main__':
diff --git a/Demo/pdist/makechangelog.py b/Demo/pdist/makechangelog.py
index 5a0cf7991c..b26f30b3a0 100755
--- a/Demo/pdist/makechangelog.py
+++ b/Demo/pdist/makechangelog.py
@@ -15,25 +15,25 @@ def main():
     opts, args = getopt.getopt(args, 'p:')
     prefix = ''
     for o, a in opts:
-	if p == '-p': prefix = a
+        if p == '-p': prefix = a
 
     f = sys.stdin
     allrevs = []
     while 1:
-	file = getnextfile(f)
-	if not file: break
-	revs = []
-	while 1:
-	    rev = getnextrev(f, file)
-	    if not rev:
-		break
-	    revs.append(rev)
-	if revs:
-	    allrevs[len(allrevs):] = revs
+        file = getnextfile(f)
+        if not file: break
+        revs = []
+        while 1:
+            rev = getnextrev(f, file)
+            if not rev:
+                break
+            revs.append(rev)
+        if revs:
+            allrevs[len(allrevs):] = revs
     allrevs.sort()
     allrevs.reverse()
     for rev in allrevs:
-	formatrev(rev, prefix)
+        formatrev(rev, prefix)
 
 parsedateprog = regex.compile(
     '^date: \([0-9]+\)/\([0-9]+\)/\([0-9]+\) ' +
@@ -48,46 +48,46 @@ authormap = {
 def formatrev(rev, prefix):
     dateline, file, revline, log = rev
     if parsedateprog.match(dateline) >= 0:
-	fields = parsedateprog.group(1, 2, 3, 4, 5, 6)
-	author = parsedateprog.group(7)
-	if authormap.has_key(author): author = authormap[author]
-	tfields = map(string.atoi, fields) + [0, 0, 0]
-	tfields[5] = tfields[5] - time.timezone
-	t = time.mktime(tuple(tfields))
-	print time.ctime(t), '', author
-	words = string.split(log)
-	words[:0] = ['*', prefix + file + ':']
-	maxcol = 72-8
-	col = maxcol
-	for word in words:
-	    if col > 0 and col + len(word) >= maxcol:
-		print
-		print '\t' + word,
-		col = -1
-	    else:
-		print word,
-	    col = col + 1 + len(word)
-	print
-	print
+        fields = parsedateprog.group(1, 2, 3, 4, 5, 6)
+        author = parsedateprog.group(7)
+        if authormap.has_key(author): author = authormap[author]
+        tfields = map(string.atoi, fields) + [0, 0, 0]
+        tfields[5] = tfields[5] - time.timezone
+        t = time.mktime(tuple(tfields))
+        print time.ctime(t), '', author
+        words = string.split(log)
+        words[:0] = ['*', prefix + file + ':']
+        maxcol = 72-8
+        col = maxcol
+        for word in words:
+            if col > 0 and col + len(word) >= maxcol:
+                print
+                print '\t' + word,
+                col = -1
+            else:
+                print word,
+            col = col + 1 + len(word)
+        print
+        print
 
 startprog = regex.compile("^Working file: \(.*\)$")
 
 def getnextfile(f):
     while 1:
-	line = f.readline()
-	if not line: return None
-	if startprog.match(line) >= 0:
-	    file = startprog.group(1)
-	    # Skip until first revision
-	    while 1:
-		line = f.readline()
-		if not line: return None
-		if line[:10] == '='*10: return None
-		if line[:10] == '-'*10: break
-##		print "Skipped", line,
-	    return file
-##	else:
-##	    print "Ignored", line,
+        line = f.readline()
+        if not line: return None
+        if startprog.match(line) >= 0:
+            file = startprog.group(1)
+            # Skip until first revision
+            while 1:
+                line = f.readline()
+                if not line: return None
+                if line[:10] == '='*10: return None
+                if line[:10] == '-'*10: break
+##              print "Skipped", line,
+            return file
+##      else:
+##          print "Ignored", line,
 
 def getnextrev(f, file):
     # This is called when we are positioned just after a '---' separator
@@ -95,14 +95,14 @@ def getnextrev(f, file):
     dateline = f.readline()
     log = ''
     while 1:
-	line = f.readline()
-	if not line: break
-	if line[:10] == '='*10:
-	    # Ignore the *last* log entry for each file since it
-	    # is the revision since which we are logging.
-	    return None
-	if line[:10] == '-'*10: break
-	log = log + line
+        line = f.readline()
+        if not line: break
+        if line[:10] == '='*10:
+            # Ignore the *last* log entry for each file since it
+            # is the revision since which we are logging.
+            return None
+        if line[:10] == '-'*10: break
+        log = log + line
     return dateline, file, revline, log
 
 if __name__ == '__main__':
diff --git a/Demo/pdist/rcsclient.py b/Demo/pdist/rcsclient.py
index 20dffeca23..5d88a57981 100755
--- a/Demo/pdist/rcsclient.py
+++ b/Demo/pdist/rcsclient.py
@@ -22,8 +22,8 @@ import client
 
 class RCSProxyClient(client.SecureClient):
 	
-    def __init__(self, address, verbose = client.VERBOSE):
-	client.SecureClient.__init__(self, address, verbose)
+	def __init__(self, address, verbose = client.VERBOSE):
+		client.SecureClient.__init__(self, address, verbose)
 
 
 def openrcsclient(opts = []):
diff --git a/Demo/pdist/rcslib.py b/Demo/pdist/rcslib.py
index 55d764d298..223ddca98e 100755
--- a/Demo/pdist/rcslib.py
+++ b/Demo/pdist/rcslib.py
@@ -36,304 +36,304 @@ class RCS:
     okchars = string.letters + string.digits + '-_=+.'
 
     def __init__(self):
-	"""Constructor."""
-	pass
+        """Constructor."""
+        pass
 
     def __del__(self):
-	"""Destructor."""
-	pass
+        """Destructor."""
+        pass
 
     # --- Informational methods about a single file/revision ---
 
     def log(self, name_rev, otherflags = ''):
-	"""Return the full log text for NAME_REV as a string.
+        """Return the full log text for NAME_REV as a string.
 
-	Optional OTHERFLAGS are passed to rlog.
+        Optional OTHERFLAGS are passed to rlog.
 
-	"""
-	f = self._open(name_rev, 'rlog ' + otherflags)
-	data = f.read()
-	status = self._closepipe(f)
-	if status:
-	    data = data + "%s: %s" % status
-	elif data[-1] == '\n':
-	    data = data[:-1]
-	return data
+        """
+        f = self._open(name_rev, 'rlog ' + otherflags)
+        data = f.read()
+        status = self._closepipe(f)
+        if status:
+            data = data + "%s: %s" % status
+        elif data[-1] == '\n':
+            data = data[:-1]
+        return data
 
     def head(self, name_rev):
-	"""Return the head revision for NAME_REV"""
-	dict = self.info(name_rev)
-	return dict['head']
+        """Return the head revision for NAME_REV"""
+        dict = self.info(name_rev)
+        return dict['head']
 
     def info(self, name_rev):
-	"""Return a dictionary of info (from rlog -h) for NAME_REV
-
-	The dictionary's keys are the keywords that rlog prints
-	(e.g. 'head' and its values are the corresponding data
-	(e.g. '1.3').
-
-	XXX symbolic names and locks are not returned
-
-	"""
-	f = self._open(name_rev, 'rlog -h')
-	dict = {}
-	while 1:
-	    line = f.readline()
-	    if not line: break
-	    if line[0] == '\t':
-		# XXX could be a lock or symbolic name
-		# Anything else?
-		continue 
-	    i = string.find(line, ':')
-	    if i > 0:
-		key, value = line[:i], string.strip(line[i+1:])
-		dict[key] = value
-	status = self._closepipe(f)
-	if status:
-	    raise IOError, status
-	return dict
+        """Return a dictionary of info (from rlog -h) for NAME_REV
+
+        The dictionary's keys are the keywords that rlog prints
+        (e.g. 'head' and its values are the corresponding data
+        (e.g. '1.3').
+
+        XXX symbolic names and locks are not returned
+
+        """
+        f = self._open(name_rev, 'rlog -h')
+        dict = {}
+        while 1:
+            line = f.readline()
+            if not line: break
+            if line[0] == '\t':
+                # XXX could be a lock or symbolic name
+                # Anything else?
+                continue 
+            i = string.find(line, ':')
+            if i > 0:
+                key, value = line[:i], string.strip(line[i+1:])
+                dict[key] = value
+        status = self._closepipe(f)
+        if status:
+            raise IOError, status
+        return dict
 
     # --- Methods that change files ---
 
     def lock(self, name_rev):
-	"""Set an rcs lock on NAME_REV."""
-	name, rev = self.checkfile(name_rev)
-	cmd = "rcs -l%s %s" % (rev, name)
-	return self._system(cmd)
+        """Set an rcs lock on NAME_REV."""
+        name, rev = self.checkfile(name_rev)
+        cmd = "rcs -l%s %s" % (rev, name)
+        return self._system(cmd)
 
     def unlock(self, name_rev):
-	"""Clear an rcs lock on NAME_REV."""
-	name, rev = self.checkfile(name_rev)
-	cmd = "rcs -u%s %s" % (rev, name)
-	return self._system(cmd)
+        """Clear an rcs lock on NAME_REV."""
+        name, rev = self.checkfile(name_rev)
+        cmd = "rcs -u%s %s" % (rev, name)
+        return self._system(cmd)
 
     def checkout(self, name_rev, withlock=0, otherflags=""):
-	"""Check out NAME_REV to its work file.
+        """Check out NAME_REV to its work file.
 
-	If optional WITHLOCK is set, check out locked, else unlocked.
+        If optional WITHLOCK is set, check out locked, else unlocked.
 
-	The optional OTHERFLAGS is passed to co without
-	interpretation.
+        The optional OTHERFLAGS is passed to co without
+        interpretation.
 
-	Any output from co goes to directly to stdout.
+        Any output from co goes to directly to stdout.
 
-	"""
-	name, rev = self.checkfile(name_rev)
-	if withlock: lockflag = "-l"
-	else: lockflag = "-u"
-	cmd = 'co %s%s %s %s' % (lockflag, rev, otherflags, name)
-	return self._system(cmd)
+        """
+        name, rev = self.checkfile(name_rev)
+        if withlock: lockflag = "-l"
+        else: lockflag = "-u"
+        cmd = 'co %s%s %s %s' % (lockflag, rev, otherflags, name)
+        return self._system(cmd)
 
     def checkin(self, name_rev, message=None, otherflags=""):
-	"""Check in NAME_REV from its work file.
-
-	The optional MESSAGE argument becomes the checkin message
-	(default "<none>" if None); or the file description if this is
-	a new file.
-
-	The optional OTHERFLAGS argument is passed to ci without
-	interpretation.
-
-	Any output from ci goes to directly to stdout.
-
-	"""
-	name, rev = self._unmangle(name_rev)
-	new = not self.isvalid(name)
-	if not message: message = "<none>"
-	if message and message[-1] != '\n':
-	    message = message + '\n'
-	lockflag = "-u"
-	textfile = None
-	try:
-	    if new:
-		textfile = tempfile.mktemp()
-		f = open(textfile, 'w')
-		f.write(message)
-		f.close()
-		cmd = 'ci %s%s -t%s %s %s' % \
-		      (lockflag, rev, textfile, otherflags, name)
-	    else:
-		message = regsub.gsub('\([\\"$`]\)', '\\\\\\1', message)
-		cmd = 'ci %s%s -m"%s" %s %s' % \
-		      (lockflag, rev, message, otherflags, name)
-	    return self._system(cmd)
-	finally:
-	    if textfile: self._remove(textfile)
+        """Check in NAME_REV from its work file.
+
+        The optional MESSAGE argument becomes the checkin message
+        (default "<none>" if None); or the file description if this is
+        a new file.
+
+        The optional OTHERFLAGS argument is passed to ci without
+        interpretation.
+
+        Any output from ci goes to directly to stdout.
+
+        """
+        name, rev = self._unmangle(name_rev)
+        new = not self.isvalid(name)
+        if not message: message = "<none>"
+        if message and message[-1] != '\n':
+            message = message + '\n'
+        lockflag = "-u"
+        textfile = None
+        try:
+            if new:
+                textfile = tempfile.mktemp()
+                f = open(textfile, 'w')
+                f.write(message)
+                f.close()
+                cmd = 'ci %s%s -t%s %s %s' % \
+                      (lockflag, rev, textfile, otherflags, name)
+            else:
+                message = regsub.gsub('\([\\"$`]\)', '\\\\\\1', message)
+                cmd = 'ci %s%s -m"%s" %s %s' % \
+                      (lockflag, rev, message, otherflags, name)
+            return self._system(cmd)
+        finally:
+            if textfile: self._remove(textfile)
 
     # --- Exported support methods ---
 
     def listfiles(self, pat = None):
-	"""Return a list of all version files matching optional PATTERN."""
-	files = os.listdir(os.curdir)
-	files = filter(self._isrcs, files)
-	if os.path.isdir('RCS'):
-	    files2 = os.listdir('RCS')
-	    files2 = filter(self._isrcs, files2)
-	    files = files + files2
-	files = map(self.realname, files)
-	return self._filter(files, pat)
+        """Return a list of all version files matching optional PATTERN."""
+        files = os.listdir(os.curdir)
+        files = filter(self._isrcs, files)
+        if os.path.isdir('RCS'):
+            files2 = os.listdir('RCS')
+            files2 = filter(self._isrcs, files2)
+            files = files + files2
+        files = map(self.realname, files)
+        return self._filter(files, pat)
 
     def isvalid(self, name):
-	"""Test whether NAME has a version file associated."""
-	namev = self.rcsname(name)
-	return (os.path.isfile(namev) or
-		os.path.isfile(os.path.join('RCS', namev)))
+        """Test whether NAME has a version file associated."""
+        namev = self.rcsname(name)
+        return (os.path.isfile(namev) or
+                os.path.isfile(os.path.join('RCS', namev)))
 
     def rcsname(self, name):
-	"""Return the pathname of the version file for NAME.
-
-	The argument can be a work file name or a version file name.
-	If the version file does not exist, the name of the version
-	file that would be created by "ci" is returned.
-
-	"""
-	if self._isrcs(name): namev = name
-	else: namev = name + ',v'
-	if os.path.isfile(namev): return namev
-	namev = os.path.join('RCS', os.path.basename(namev))
-	if os.path.isfile(namev): return namev
-	if os.path.isdir('RCS'):
-	    return os.path.join('RCS', namev)
-	else:
-	    return namev
+        """Return the pathname of the version file for NAME.
+
+        The argument can be a work file name or a version file name.
+        If the version file does not exist, the name of the version
+        file that would be created by "ci" is returned.
+
+        """
+        if self._isrcs(name): namev = name
+        else: namev = name + ',v'
+        if os.path.isfile(namev): return namev
+        namev = os.path.join('RCS', os.path.basename(namev))
+        if os.path.isfile(namev): return namev
+        if os.path.isdir('RCS'):
+            return os.path.join('RCS', namev)
+        else:
+            return namev
 
     def realname(self, namev):
-	"""Return the pathname of the work file for NAME.
+        """Return the pathname of the work file for NAME.
 
-	The argument can be a work file name or a version file name.
-	If the work file does not exist, the name of the work file
-	that would be created by "co" is returned.
+        The argument can be a work file name or a version file name.
+        If the work file does not exist, the name of the work file
+        that would be created by "co" is returned.
 
-	"""
-	if self._isrcs(namev): name = namev[:-2]
-	else: name = namev
-	if os.path.isfile(name): return name
-	name = os.path.basename(name)
-	return name
+        """
+        if self._isrcs(namev): name = namev[:-2]
+        else: name = namev
+        if os.path.isfile(name): return name
+        name = os.path.basename(name)
+        return name
 
     def islocked(self, name_rev):
-	"""Test whether FILE (which must have a version file) is locked.
-
-	XXX This does not tell you which revision number is locked and
-	ignores any revision you may pass in (by virtue of using rlog
-	-L -R).
-
-	"""
-	f = self._open(name_rev, 'rlog -L -R')
-	line = f.readline()
-	status = self._closepipe(f)
-	if status:
-	    raise IOError, status
-	if not line: return None
-	if line[-1] == '\n':
-	    line = line[:-1]
-	return self.realname(name_rev) == self.realname(line)
+        """Test whether FILE (which must have a version file) is locked.
+
+        XXX This does not tell you which revision number is locked and
+        ignores any revision you may pass in (by virtue of using rlog
+        -L -R).
+
+        """
+        f = self._open(name_rev, 'rlog -L -R')
+        line = f.readline()
+        status = self._closepipe(f)
+        if status:
+            raise IOError, status
+        if not line: return None
+        if line[-1] == '\n':
+            line = line[:-1]
+        return self.realname(name_rev) == self.realname(line)
 
     def checkfile(self, name_rev):
-	"""Normalize NAME_REV into a (NAME, REV) tuple.
+        """Normalize NAME_REV into a (NAME, REV) tuple.
 
-	Raise an exception if there is no corresponding version file.
+        Raise an exception if there is no corresponding version file.
 
-	"""
-	name, rev = self._unmangle(name_rev)
-	if not self.isvalid(name):
-	    raise os.error, 'not an rcs file %s' % `name`
-	return name, rev
+        """
+        name, rev = self._unmangle(name_rev)
+        if not self.isvalid(name):
+            raise os.error, 'not an rcs file %s' % `name`
+        return name, rev
 
     # --- Internal methods ---
 
     def _open(self, name_rev, cmd = 'co -p', rflag = '-r'):
-	"""INTERNAL: open a read pipe to NAME_REV using optional COMMAND.
+        """INTERNAL: open a read pipe to NAME_REV using optional COMMAND.
 
-	Optional FLAG is used to indicate the revision (default -r).
+        Optional FLAG is used to indicate the revision (default -r).
 
-	Default COMMAND is "co -p".
+        Default COMMAND is "co -p".
 
-	Return a file object connected by a pipe to the command's
-	output.
+        Return a file object connected by a pipe to the command's
+        output.
 
-	"""
-	name, rev = self.checkfile(name_rev)
-	namev = self.rcsname(name)
-	if rev:
-	    cmd = cmd + ' ' + rflag + rev
-	return os.popen("%s %s" % (cmd, `namev`))
+        """
+        name, rev = self.checkfile(name_rev)
+        namev = self.rcsname(name)
+        if rev:
+            cmd = cmd + ' ' + rflag + rev
+        return os.popen("%s %s" % (cmd, `namev`))
 
     def _unmangle(self, name_rev):
-	"""INTERNAL: Normalize NAME_REV argument to (NAME, REV) tuple.
+        """INTERNAL: Normalize NAME_REV argument to (NAME, REV) tuple.
 
-	Raise an exception if NAME contains invalid characters.
+        Raise an exception if NAME contains invalid characters.
 
-	A NAME_REV argument is either NAME string (implying REV='') or
-	a tuple of the form (NAME, REV).
+        A NAME_REV argument is either NAME string (implying REV='') or
+        a tuple of the form (NAME, REV).
 
-	"""
-	if type(name_rev) == type(''):
-	    name_rev = name, rev = name_rev, ''
-	else:
-	    name, rev = name_rev
-	for c in rev:
-	    if c not in self.okchars:
-		raise ValueError, "bad char in rev"
-	return name_rev
+        """
+        if type(name_rev) == type(''):
+            name_rev = name, rev = name_rev, ''
+        else:
+            name, rev = name_rev
+        for c in rev:
+            if c not in self.okchars:
+                raise ValueError, "bad char in rev"
+        return name_rev
 
     def _closepipe(self, f):
-	"""INTERNAL: Close PIPE and print its exit status if nonzero."""
-	sts = f.close()
-	if not sts: return None
-	detail, reason = divmod(sts, 256)
-	if reason == 0: return 'exit', detail	# Exit status
-	signal = reason&0x7F
-	if signal == 0x7F:
-	    code = 'stopped'
-	    signal = detail
-	else:
-	    code = 'killed'
-	if reason&0x80:
-	    code = code + '(coredump)'
-	return code, signal
+        """INTERNAL: Close PIPE and print its exit status if nonzero."""
+        sts = f.close()
+        if not sts: return None
+        detail, reason = divmod(sts, 256)
+        if reason == 0: return 'exit', detail   # Exit status
+        signal = reason&0x7F
+        if signal == 0x7F:
+            code = 'stopped'
+            signal = detail
+        else:
+            code = 'killed'
+        if reason&0x80:
+            code = code + '(coredump)'
+        return code, signal
  
     def _system(self, cmd):
-	"""INTERNAL: run COMMAND in a subshell.
+        """INTERNAL: run COMMAND in a subshell.
 
-	Standard input for the command is taken fron /dev/null.
+        Standard input for the command is taken fron /dev/null.
 
-	Raise IOError when the exit status is not zero.
+        Raise IOError when the exit status is not zero.
 
-	Return whatever the calling method should return; normally
-	None.
+        Return whatever the calling method should return; normally
+        None.
 
-	A derived class may override this method and redefine it to
-	capture stdout/stderr of the command and return it.
+        A derived class may override this method and redefine it to
+        capture stdout/stderr of the command and return it.
 
-	"""
-	cmd = cmd + " </dev/null"
-	sts = os.system(cmd)
-	if sts: raise IOError, "command exit status %d" % sts
+        """
+        cmd = cmd + " </dev/null"
+        sts = os.system(cmd)
+        if sts: raise IOError, "command exit status %d" % sts
 
     def _filter(self, files, pat = None):
-	"""INTERNAL: Return a sorted copy of the given list of FILES.
-
-	If a second PATTERN argument is given, only files matching it
-	are kept.  No check for valid filenames is made.
-	
-	"""
-	if pat:
-	    def keep(name, pat = pat):
-		return fnmatch.fnmatch(name, pat)
-	    files = filter(keep, files)
-	else:
-	    files = files[:]
-	files.sort()
-	return files
+        """INTERNAL: Return a sorted copy of the given list of FILES.
+
+        If a second PATTERN argument is given, only files matching it
+        are kept.  No check for valid filenames is made.
+        
+        """
+        if pat:
+            def keep(name, pat = pat):
+                return fnmatch.fnmatch(name, pat)
+            files = filter(keep, files)
+        else:
+            files = files[:]
+        files.sort()
+        return files
 
     def _remove(self, fn):
-	"""INTERNAL: remove FILE without complaints."""
-	try:
-	    os.unlink(fn)
-	except os.error:
-	    pass
+        """INTERNAL: remove FILE without complaints."""
+        try:
+            os.unlink(fn)
+        except os.error:
+            pass
 
     def _isrcs(self, name):
-	"""INTERNAL: Test whether NAME ends in ',v'."""
-	return name[-2:] == ',v'
+        """INTERNAL: Test whether NAME ends in ',v'."""
+        return name[-2:] == ',v'