Mercurial > cpython-lru_cache-weakref

annotate Lib/nturl2path.py @ 25838:8540887bcec6 2.2

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Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents 4d33acbdc508
children de0c2fea65c2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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b6f52c1ef6da More trivial comment -> docstring transformations by Ka-Ping Yee,
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1 """Convert a NT pathname to a file URL and vice versa."""
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2
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3 def url2pathname(url):
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4 r"""Convert a URL to a DOS path.
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5
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6 ///C|/foo/bar/spam.foo
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7
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8 becomes
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9
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10 C:\foo\bar\spam.foo
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11 """
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12 import string, urllib
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13 if not '|' in url:
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14 # No drive specifier, just convert slashes
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15 if url[:4] == '////':
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16 # path is something like ////host/path/on/remote/host
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17 # convert this to \\host\path\on\remote\host
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18 # (notice halving of slashes at the start of the path)
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19 url = url[2:]
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20 components = url.split('/')
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21 # make sure not to convert quoted slashes :-)
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22 return urllib.unquote('\\'.join(components))
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23 comp = url.split('|')
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24 if len(comp) != 2 or comp[0][-1] not in string.ascii_letters:
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25 error = 'Bad URL: ' + url
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26 raise IOError, error
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27 drive = comp[0][-1].upper()
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28 components = comp[1].split('/')
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29 path = drive + ':'
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30 for comp in components:
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31 if comp:
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32 path = path + '\\' + urllib.unquote(comp)
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33 return path
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34
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35 def pathname2url(p):
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36 r"""Convert a DOS path name to a file url.
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37
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38 C:\foo\bar\spam.foo
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39
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40 becomes
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41
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42 ///C|/foo/bar/spam.foo
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43 """
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44
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45 import urllib
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46 if not ':' in p:
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47 # No drive specifier, just convert slashes and quote the name
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48 if p[:2] == '\\\\':
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49 # path is something like \\host\path\on\remote\host
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50 # convert this to ////host/path/on/remote/host
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51 # (notice doubling of slashes at the start of the path)
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52 p = '\\\\' + p
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53 components = p.split('\\')
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54 return urllib.quote('/'.join(components))
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55 comp = p.split(':')
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56 if len(comp) != 2 or len(comp[0]) > 1:
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57 error = 'Bad path: ' + p
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58 raise IOError, error
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59
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60 drive = urllib.quote(comp[0].upper())
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61 components = comp[1].split('\\')
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62 path = '///' + drive + '|'
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63 for comp in components:
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64 if comp:
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65 path = path + '/' + urllib.quote(comp)
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66 return path