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diff --git a/subversion/include/mod_dav_svn.h b/subversion/include/mod_dav_svn.h
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+/**
+ * @copyright
+ * ====================================================================
+ *    Licensed to the Apache Software Foundation (ASF) under one
+ *    or more contributor license agreements.  See the NOTICE file
+ *    distributed with this work for additional information
+ *    regarding copyright ownership.  The ASF licenses this file
+ *    to you under the Apache License, Version 2.0 (the
+ *    "License"); you may not use this file except in compliance
+ *    with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing,
+ *    software distributed under the License is distributed on an
+ *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *    KIND, either express or implied.  See the License for the
+ *    specific language governing permissions and limitations
+ *    under the License.
+ * ====================================================================
+ * @endcopyright
+ *
+ * @file mod_dav_svn.h
+ * @brief Subversion's backend for Apache's mod_dav module
+ */
+
+
+#ifndef MOD_DAV_SVN_H
+#define MOD_DAV_SVN_H
+
+#include <httpd.h>
+#include <mod_dav.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/**
+   Given an apache request @a r, a @a uri, and a @a root_path to the svn
+   location block, process @a uri and return many things, allocated in
+   @a r->pool:
+
+   - @a cleaned_uri:    The uri with duplicate and trailing slashes removed.
+
+   - @a trailing_slash: Whether the uri had a trailing slash on it.
+
+   Three special substrings of the uri are returned for convenience:
+
+   - @a repos_basename: The single path component that is the directory
+                      which contains the repository.  (Don't confuse
+                      this with the "repository name" as optionally
+                      defined via the SVNReposName directive!)
+
+   - @a relative_path:  The remaining imaginary path components.
+
+   - @a repos_path:     The actual path within the repository filesystem, or
+                      NULL if no part of the uri refers to a path in
+                      the repository (e.g. "!svn/vcc/default" or
+                      "!svn/bln/25").
+
+
+   For example, consider the uri
+
+       /svn/repos/proj1/!svn/blah/13//A/B/alpha
+
+   In the SVNPath case, this function would receive a @a root_path of
+   '/svn/repos/proj1', and in the SVNParentPath case would receive a
+   @a root_path of '/svn/repos'.  But either way, we would get back:
+
+     - @a cleaned_uri:    /svn/repos/proj1/!svn/blah/13/A/B/alpha
+     - @a repos_basename: proj1
+     - @a relative_path:  /!svn/blah/13/A/B/alpha
+     - @a repos_path:     A/B/alpha
+     - @a trailing_slash: FALSE
+*/
+AP_MODULE_DECLARE(dav_error *) dav_svn_split_uri(request_rec *r,
+                                                 const char *uri,
+                                                 const char *root_path,
+                                                 const char **cleaned_uri,
+                                                 int *trailing_slash,
+                                                 const char **repos_basename,
+                                                 const char **relative_path,
+                                                 const char **repos_path);
+
+
+/**
+ * Given an apache request @a r and a @a root_path to the svn location
+ * block, set @a *repos_path to the path of the repository on disk.  */
+AP_MODULE_DECLARE(dav_error *) dav_svn_get_repos_path(request_rec *r,
+                                                      const char *root_path,
+                                                      const char **repos_path);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* MOD_DAV_SVN_H */