diff -r 4f9079dd4b65 -r 20141b967c0b doc/api/source/vmm.rst
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+:mod:`VirtualMailManager` ---  Initialization code and some functions
+=====================================================================
+
+.. module:: VirtualMailManager
+  :synopsis: Initialization code and some functions
+
+.. moduleauthor:: Pascal Volk <neverseen@users.sourceforge.net>
+
+.. toctree::
+   :maxdepth: 2
+
+When the VirtualMailManager module, or one of its sub modules, is imported,
+the following actions will be performed:
+
+  - :func:`locale.setlocale` (with :const:`locale.LC_ALL`) is called, to set
+    :const:`ENCODING`
+  - :func:`gettext.install` is called, to have 18N support.
+
+Constants and data
+------------------
+
+.. data:: ENCODING
+
+  The systems current character encoding, e.g. ``'UTF-8'`` or
+  ``'ANSI_X3.4-1968'`` (aka ASCII).
+
+
+Functions
+---------
+
+.. function:: ace2idna(domainname)
+
+  Converts the idn domain name *domainname* into punycode.
+
+  :param domainname: the domain-ace representation (``xn--…``)
+  :type domainname: str
+  :rtype: unicode
+
+.. function:: check_domainname(domainname)
+
+  Returns the validated domain name *domainname*.
+
+  It also converts the name of the domain from IDN to ASCII, if necessary.
+
+  :param domainname: the name of the domain
+  :type domainname: :obj:`basestring`
+  :rtype: str
+  :raise VirtualMailManager.errors.VMMError: if the domain name is
+    too long or doesn't look like a valid domain name (label.label.label).
+
+.. function:: check_localpart(localpart)
+
+  Returns the validated local-part *localpart* of an e-mail address.
+
+  :param localpart: The local-part of an e-mail address.
+  :type localpart: str
+  :rtype: str
+  :raise VirtualMailManager.errors.VMMError: if the local-part is too
+    long or contains invalid characters.
+
+.. function:: exec_ok(binary)
+
+  Checks if the *binary* exists and if it is executable.
+
+  :param binary: path to the binary
+  :type binary: str
+  :rtype: str
+  :raise VirtualMailManager.errors.VMMError: if *binary* isn't a file
+    or is not executable.
+
+.. function:: expand_path(path)
+
+  Expands paths, starting with ``.`` or ``~``, to an absolute path.
+
+  :param path: Path to a file or directory
+  :type path: str
+  :rtype: str
+
+.. function:: get_unicode(string)
+
+  Converts `string` to `unicode`, if necessary.
+
+  :param string: The string taht should be converted
+  :type string: str
+  :rtype: unicode
+
+.. function:: idn2ascii(domainname)
+
+  Converts the idn domain name *domainname* into punycode.
+
+  :param domainname: the unicode representation of the domain name
+  :type domainname: unicode
+  :rtype: str
+
+.. function:: is_dir(path)
+
+  Checks if *path* is a directory.
+
+  :param path: Path to a directory
+  :type path: str
+  :rtype: str
+  :raise VirtualMailManager.errors.VMMError: if *path* is not a directory.
+
+
+Examples
+--------
+
+  >>> from VirtualMailManager import *
+  >>> ace2idna('xn--pypal-4ve.tld')
+  u'p\u0430ypal.tld'
+  >>> idn2ascii(u'öko.de')
+  'xn--ko-eka.de'
+  >>> check_domainname(u'pаypal.tld')
+  'xn--pypal-4ve.tld'
+  >>> check_localpart('john.doe')
+  'john.doe'
+  >>> exec_ok('usr/bin/vim')
+  Traceback (most recent call last):
+    File "<stdin>", line 1, in <module>
+    File "./VirtualMailManager/__init__.py", line 93, in exec_ok
+      NO_SUCH_BINARY)
+  VirtualMailManager.errors.VMMError: 'usr/bin/vim' is not a file
+  >>> exec_ok('/usr/bin/vim')
+  '/usr/bin/vim'
+  >>> expand_path('.')
+  '/home/user/hg/vmm'
+  >>> get_unicode('hello world')
+  u'hello world'
+  >>> is_dir('~/hg')
+  '/home/user/hg'
+  >>> 
+