--- /dev/null
+/* $Id$
+
+This file is part of libmspfs
+Copyright © 2006-2008 Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#ifndef MSP_FS_PATH_H_
+#define MSP_FS_PATH_H_
+
+#include <ostream>
+#include <string>
+
+namespace Msp {
+namespace FS {
+
+enum
+{
+#ifdef WIN32
+ DIRSEP = '\\'
+#else
+ DIRSEP = '/'
+#endif
+};
+
+/**
+Stores a filesystem path. Paths are always stored in a normalized form; there
+are never any "." or ".." components in the middle of the path, and relative
+paths always begin with a single "." component or a sequence ".." components.
+*/
+class Path
+{
+public:
+ class Iterator
+ {
+ friend class Path;
+
+ private:
+ const Path &path;
+ std::string::size_type start,end;
+
+ Iterator(const Path &);
+ public:
+ Iterator &operator++();
+ Iterator &operator--();
+ std::string operator*() const;
+ bool operator==(const Iterator &i) const { return (start==i.start && end==i.end); }
+ bool operator!=(const Iterator &i) const { return !(*this==i); }
+ };
+
+private:
+ std::string path;
+
+public:
+ Path();
+ Path(const std::string &);
+ Path(const char *);
+
+ const std::string &str() const { return path; }
+
+ /// Returns the number of components in the path.
+ unsigned size() const;
+
+ bool empty() const { return path.empty(); }
+
+ /// Determines whether the path starts from the root directory
+ bool is_absolute() const;
+
+ /// Extracts a range of components from the path.
+ Path subpath(unsigned start, unsigned count = static_cast<unsigned>(-1)) const;
+
+ /// Concatenates this path with another one, with usual filesystem semantics
+ Path operator/(const Path &p) const;
+ Path &operator/=(const Path &);
+
+ /**
+ Extracts a single component from the path. Negative indices count from the
+ end of the path.
+ */
+ std::string operator[](int) const;
+
+ bool operator==(const Path &) const;
+ Iterator begin() const;
+ Iterator end() const;
+private:
+ void init(const std::string &);
+ void add_component(const std::string &);
+};
+
+inline std::ostream &operator<<(std::ostream &o, const Path &p) { o<<p.str(); return o; }
+
+} // namespace FS
+} // namespace Msp
+
+#endif