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diff --git a/indexlib/path.h b/indexlib/path.h
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+++ b/indexlib/path.h
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+#ifndef LPC_PATH_H1118420718_INCLUDE_GUARD_
+#define LPC_PATH_H1118420718_INCLUDE_GUARD_
+/* This file is part of indexlib.
+ * Copyright (C) 2005 Luís Pedro Coelho <luis@luispedro.org>
+ *
+ * Indexlib is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation and available as file
+ * GPL_V2 which is distributed along with indexlib.
+ * 
+ * Indexlib is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA
+ * 
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of this program with any edition of
+ * the Qt library by Trolltech AS, Norway (or with modified versions
+ * of Qt that use the same license as Qt), and distribute linked
+ * combinations including the two.  You must obey the GNU General
+ * Public License in all respects for all of the code used other than
+ * Qt.  If you modify this file, you may extend this exception to
+ * your version of the file, but you are not obligated to do so.  If
+ * you do not wish to do so, delete this exception statement from
+ * your version.
+ */
+
+#include <string>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+/**
+ * Returns whether \param p is the name of a directory
+ */
+inline
+bool isdir( const char* p ) {
+	struct stat st;
+	if ( stat( p, &st ) != 0 ) return false;
+	return st.st_mode & S_IFDIR;
+}
+
+inline
+bool isdir( std::string p ) { return isdir( p.c_str() ); }
+
+namespace indexlib { namespace detail {
+/**
+ * Wrapper around mkdir which handles trailing slashes.
+ */
+inline 
+bool mkdir_trailing( std::string p ) {
+	while ( p.size() > 1 && p[ p.size() - 1 ] == '/' ) p.resize( p.size() - 1 );
+	if ( p.empty() ) return false;
+	return ::mkdir( p.c_str(), 0755 ) == 0;
+
+}
+
+}}
+/**
+ * If \param base is the basename of an index and \param ext the filename,
+ * then this returns strcat( basename, ext ) but it's smart enough to
+ * handle the case where basename is a directory differently.
+ */
+inline
+std::string path_concat( std::string base, std::string ext ) {
+	if ( isdir( base ) ) {
+		base += "/index";
+	}
+	return base + '.' + ext;
+}
+
+
+
+#endif /* LPC_PATH_H1118420718_INCLUDE_GUARD_ */