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authorkientzle <kientzle@5914aa95-5b3a-0410-a3b5-7b719e7fe9b2>2008-03-18 18:24:32 +0000
committerkientzle <kientzle@5914aa95-5b3a-0410-a3b5-7b719e7fe9b2>2008-03-18 18:24:32 +0000
commita9aa9e93ab46f067bfe912aae3612a17f2743720 (patch)
treebed621f2d5dda9eace6fede1b083a3c09ad8e980 /freebase/api/mqlkey.py
parent1abc18880a041188e8259bc637c437a4d3780526 (diff)
Move the "freebase.api" module into a "freebase-api" directory so that
we can provide a couple of different parallel implementations. git-svn-id: http://freebase-python.googlecode.com/svn/trunk@34 5914aa95-5b3a-0410-a3b5-7b719e7fe9b2
Diffstat (limited to 'freebase/api/mqlkey.py')
-rwxr-xr-xfreebase/api/mqlkey.py129
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:])
-