fs/Path: move definitions to struct PathTraits

src/fs/Traits.hxx

@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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.
+ */
+
+#ifndef MPD_FS_TRAITS_HXX
+#define MPD_FS_TRAITS_HXX
+
+#include "check.h"
+#include "Compiler.h"
+
+#ifdef WIN32
+#include <glib.h>
+#endif
+
+#include <assert.h>
+
+class Error;
+
+/**
+ * This class describes the nature of a filesystem path.
+ */
+struct PathTraits {
+	typedef char value_type;
+	typedef char *pointer;
+	typedef const char *const_pointer;
+
+#ifdef WIN32
+	static constexpr value_type SEPARATOR_FS = '\\';
+	static constexpr char SEPARATOR_UTF8 = '/';
+#else
+	static constexpr value_type SEPARATOR_FS = '/';
+	static constexpr char SEPARATOR_UTF8 = '/';
+#endif
+
+	static constexpr bool IsSeparatorFS(value_type ch) {
+		return
+#ifdef WIN32
+			ch == '/' ||
+#endif
+			ch == SEPARATOR_FS;
+	}
+
+	static constexpr bool IsSeparatorUTF8(char ch) {
+		return
+#ifdef WIN32
+			ch == '/' ||
+#endif
+			ch == SEPARATOR_UTF8;
+	}
+
+	gcc_pure
+	static bool IsAbsoluteFS(const_pointer p) {
+		assert(p != nullptr);
+
+#ifdef WIN32
+		return g_path_is_absolute(p);
+#else
+		return IsSeparatorFS(*p);
+#endif
+	}
+
+	gcc_pure
+	static bool IsAbsoluteUTF8(const char *p) {
+		assert(p != nullptr);
+
+#ifdef WIN32
+		return g_path_is_absolute(p);
+#else
+		return IsSeparatorUTF8(*p);
+#endif
+	}
+};
+
+#endif