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Diffstat (limited to 'freebase/api/mqlkey.py')
| -rwxr-xr-x | freebase/api/mqlkey.py | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/freebase/api/mqlkey.py b/freebase/api/mqlkey.py deleted file mode 100755 index 98b7d83..0000000 --- a/freebase/api/mqlkey.py +++ /dev/null @@ -1,129 +0,0 @@ -# ======================================================================== -# Copyright (c) 2007, Metaweb Technologies, Inc. -# All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above -# copyright notice, this list of conditions and the following -# disclaimer in the documentation and/or other materials provided -# with the distribution. -# -# THIS SOFTWARE IS PROVIDED BY METAWEB TECHNOLOGIES AND CONTRIBUTORS -# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS -# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL METAWEB -# TECHNOLOGIES OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, -# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN -# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -# POSSIBILITY OF SUCH DAMAGE. -# ======================================================================== - -import string -import re - -def quotekey(ustr): - """ - quote a unicode string to turn it into a valid namespace key - - """ - valid_always = string.ascii_letters + string.digits - valid_interior_only = valid_always + '_-' - - if isinstance(ustr, str): - s = unicode(ustr,'utf-8') - elif isinstance(ustr, unicode): - s = ustr - else: - raise ValueError, 'quotekey() expects utf-8 string or unicode' - - output = [] - if s[0] in valid_always: - output.append(s[0]) - else: - output.append('$%04X' % ord(s[0])) - - for c in s[1:-1]: - if c in valid_interior_only: - output.append(c) - else: - output.append('$%04X' % ord(c)) - - if len(s) > 1: - if s[-1] in valid_always: - output.append(s[-1]) - else: - output.append('$%04X' % ord(s[-1])) - - return str(''.join(output)) - - -def unquotekey(key, encoding=None): - """ - unquote a namespace key and turn it into a unicode string - """ - - valid_always = string.ascii_letters + string.digits - - output = [] - i = 0 - while i < len(key): - if key[i] in valid_always: - output.append(key[i]) - i += 1 - elif key[i] in '_-' and i != 0 and i != len(key): - output.append(key[i]) - i += 1 - elif key[i] == '$' and i+4 < len(key): - # may raise ValueError if there are invalid characters - output.append(unichr(int(key[i+1:i+5],16))) - i += 5 - else: - raise ValueError, "unquote key saw invalid character '%s' at position %d" % (key[i], i) - - ustr = u''.join(output) - - if encoding is None: - return ustr - - return ustr.encode(encoding) - - - -def id_to_urlid(id): - """ - convert a mql id to an id suitable for embedding in a url path. - """ - - # XXX shouldn't be in metaweb.api! - from mw.formats.http import urlencode_pathseg - - segs = id.split('/') - - assert isinstance(id, str) and id != '', 'bad id "%s"' % id - - if id[0] == '~': - assert len(segs) == 1 - # assume valid, should check - return id - - if id[0] == '#': - assert len(segs) == 1 - # assume valid, should check - return '%23' + id[1:] - - if id[0] != '/': - raise ValueError, 'unknown id format %s' % id - - # ok, we have a slash-path - # requote components as keys and rejoin. - # urlids do not have leading slashes!!! - return '/'.join(urlencode_pathseg(unquotekey(seg)) for seg in segs[1:]) - |