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"""Notebook related utilities

Authors:

* Brian Granger

"""

#-----------------------------------------------------------------------------

# Copyright (C) 2011 The IPython Development Team

#

# Distributed under the terms of the BSD License. The full license is in

# the file COPYING, distributed as part of this software.

#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------

# Imports

#-----------------------------------------------------------------------------

def url_path_join(*pieces):

"""Join components of url into a relative url

Use to prevent double slash when joining subpath. This will leave the

initial and final / in place

"""

initial = pieces[0].startswith('/')

final = pieces[-1].endswith('/')

striped = [s.strip('/') for s in pieces]

result = '/'.join(s for s in striped if s)

if initial: result = '/' + result

if final: result = result + '/'

if result == '//': result = '/'

return result