[Zope3-checkins] CVS: Packages/ZConfig - url.py:1.1.2.3

[Fred L. Drake, Jr.]

Update of /cvs-repository/Packages/ZConfig
In directory cvs.zope.org:/tmp/cvs-serv2641

Modified Files:
      Tag: zconfig-schema-devel-branch
	url.py 
Log Message:
Several more fixes for the URL helper functions, with improved tests.

=== Packages/ZConfig/url.py 1.1.2.2 => 1.1.2.3 ===
--- Packages/ZConfig/url.py:1.1.2.2	Thu Jan  2 09:49:23 2003
+++ Packages/ZConfig/url.py	Thu Jan  2 10:42:54 2003
@@ -4,7 +4,7 @@
 import urlparse as _urlparse
 
 from urllib import splittype as _splittype
-from urlparse import urlunsplit
+from urlparse import urlunsplit  # part of public API
 
 
 def urldefrag(url):
@@ -24,7 +24,9 @@
     baseparts = urlsplit(base)
     relparts = urlsplit(relurl, "zconfig")
     if relparts[2]:
-        d = _posixpath.dirname(baseparts[2]) + '/'
+        d = _posixpath.dirname(baseparts[2])
+        if d:
+            d += "/"
         path = _posixpath.normpath(_posixpath.join(d, relparts[2]))
     else:
         path = baseparts[2]
@@ -39,24 +41,32 @@
 
 
 def urlsplit(url, scheme=''):
-    parts = _urlparse.urlsplit(url)
-    scheme = parts[0] or scheme
+    stated_scheme = _splittype(url)[0]
+    scheme = stated_scheme or scheme
+    parts = _urlparse.urlsplit(url, scheme=scheme)
     if scheme == "zconfig":
         path = parts[2]
-        if not path:
-            raise ValueError("zconfig URIs require a non-empty path component")
-        if parts[0] and '..' in path.split('/'):
-            raise ValueError("zconfig URIs cannot include '..' references: "
-                             + `url`)
+        if stated_scheme:
+            # These constraints only apply to absolute zconfig: URLs
+            if not path:
+                # Require a non-empty path; empty path is ok for
+                # relative URL ("#frag").
+                raise ValueError(
+                    "zconfig URIs require a non-empty path component")
+            if '..' in path.split('/'):
+                raise ValueError(
+                    "zconfig URIs cannot include '..' references: " + `url`)
         # Split the fragment ourselves since the urlparse module
         # doesn't know about the zconfig: scheme.
         if '#' in path:
             path, fragment = path.split('#', 1)
             parts = "zconfig", '', path, '', fragment
-        if path[0] == '/':
+        if path[:1] == '/':
             raise ValueError(
                 "path component of zconfig: URIs may not start with '/'")
         if '?' in path:
             raise ValueError("zconfig: URIs may not contain queries: "
                              + `url`)
+##         import sys
+##         print >>sys.__stderr__, "%r -> %r" % (url, parts)
     return parts