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4b8c6eaf8b
*this* set of patches is Ka-Ping's final sweep: The attached patches update the standard library so that all modules have docstrings beginning with one-line summaries. A new docstring was added to formatter. The docstring for os.py was updated to mention nt, os2, ce in addition to posix, dos, mac.
95 lines
3.0 KiB
Python
95 lines
3.0 KiB
Python
"""Macintosh-specific module for conversion between pathnames and URLs.
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Do not import directly; use urllib instead."""
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import string
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import urllib
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import os
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def url2pathname(pathname):
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"Convert /-delimited pathname to mac pathname"
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#
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# XXXX The .. handling should be fixed...
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#
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tp = urllib.splittype(pathname)[0]
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if tp and tp <> 'file':
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raise RuntimeError, 'Cannot convert non-local URL to pathname'
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# Turn starting /// into /, an empty hostname means current host
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if pathname[:3] == '///':
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pathname = pathname[2:]
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elif pathname[:2] == '//':
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raise RuntimeError, 'Cannot convert non-local URL to pathname'
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components = string.split(pathname, '/')
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# Remove . and embedded ..
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i = 0
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while i < len(components):
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if components[i] == '.':
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del components[i]
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elif components[i] == '..' and i > 0 and \
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components[i-1] not in ('', '..'):
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del components[i-1:i+1]
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i = i-1
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elif components[i] == '' and i > 0 and components[i-1] <> '':
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del components[i]
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else:
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i = i+1
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if not components[0]:
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# Absolute unix path, don't start with colon
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rv = string.join(components[1:], ':')
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else:
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# relative unix path, start with colon. First replace
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# leading .. by empty strings (giving ::file)
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i = 0
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while i < len(components) and components[i] == '..':
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components[i] = ''
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i = i + 1
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rv = ':' + string.join(components, ':')
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# and finally unquote slashes and other funny characters
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return urllib.unquote(rv)
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def pathname2url(pathname):
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"convert mac pathname to /-delimited pathname"
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if '/' in pathname:
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raise RuntimeError, "Cannot convert pathname containing slashes"
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components = string.split(pathname, ':')
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# Remove empty first and/or last component
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if components[0] == '':
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del components[0]
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if components[-1] == '':
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del components[-1]
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# Replace empty string ('::') by .. (will result in '/../' later)
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for i in range(len(components)):
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if components[i] == '':
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components[i] = '..'
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# Truncate names longer than 31 bytes
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components = map(_pncomp2url, components)
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if os.path.isabs(pathname):
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return '/' + string.join(components, '/')
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else:
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return string.join(components, '/')
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def _pncomp2url(component):
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component = urllib.quote(component[:31], safe='') # We want to quote slashes
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return component
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def test():
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for url in ["index.html",
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"bar/index.html",
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"/foo/bar/index.html",
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"/foo/bar/",
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"/"]:
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print `url`, '->', `url2pathname(url)`
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for path in ["drive:",
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"drive:dir:",
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"drive:dir:file",
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"drive:file",
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"file",
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":file",
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":dir:",
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":dir:file"]:
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print `path`, '->', `pathname2url(path)`
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if __name__ == '__main__':
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test()
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