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+// file : cutl/fs/path.txx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009 Code Synthesis Tools CC
+// license : MIT; see accompanying LICENSE file
+
+namespace cutl
+{
+ namespace fs
+ {
+ template <typename C>
+ basic_path<C> basic_path<C>::
+ leaf () const
+ {
+ size_type n (path_.size ()), i (n);
+
+ for (; i > 0; --i)
+ {
+ if (path_[i - 1] == '/' || path_[i - 1] == '\\')
+ break;
+ }
+
+ return i != 0 ? basic_path (path_.c_str () + i, n - i) : *this;
+ }
+
+ template <typename C>
+ basic_path<C> basic_path<C>::
+ directory () const
+ {
+ size_type i (path_.size ());
+
+ for (; i > 0; --i)
+ {
+ if (path_[i - 1] == '/' || path_[i - 1] == '\\')
+ break;
+ }
+
+ return i != 0 ? basic_path (path_.c_str (), i - 1) : *this;
+ }
+
+ template <typename C>
+ basic_path<C> basic_path<C>::
+ base () const
+ {
+ size_type i (path_.size ());
+
+ for (; i > 0; --i)
+ {
+ if (path_[i - 1] == '.')
+ break;
+
+ if (path_[i - 1] == '/' || path_[i - 1] == '\\')
+ {
+ i = 0;
+ break;
+ }
+ }
+
+ // Weed out paths like ".txt" and "/.txt"
+ //
+ if (i > 1 && path_[i - 2] != '/' && path_[i - 2] != '\\')
+ {
+ return basic_path (path_.c_str (), i - 1);
+ }
+ else
+ return *this;
+ }
+
+ template <typename C>
+ basic_path<C> basic_path<C>::
+ operator/ (basic_path<C> const& r)
+ {
+ if (r.path_.empty ())
+ throw invalid_path ();
+
+ basic_path<C> x (*this);
+ x.path_ += '/';
+ x.path_ += r.path_;
+ return x;
+ }
+
+ template <typename C>
+ void basic_path<C>::
+ init (bool internal)
+ {
+ if (!internal && path_.empty ())
+ throw invalid_path ();
+
+ // Strip trailing slashes. This way empty string represents
+ // root directory.
+ //
+ size_type n (path_.size ());
+ for (; n > 0 && (path_[n - 1] == '/' || path_[n - 1] == '\\'); --n) ;
+ path_.resize (n);
+ }
+ }
+}