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/*
Copyright (C) 2007 Tim Mayberry
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef PBD_SEARCH_PATH_INCLUDED
#define PBD_SEARCH_PATH_INCLUDED
#include <string>
#include <vector>
#include "pbd/filesystem.h"
namespace PBD {
using std::string;
using std::vector;
/**
* @class The SearchPath class is a helper class for getting a
* vector of paths contained in a search path string where a
* "search path string" contains absolute directory paths
* separated by a colon(:) or a semi-colon(;) on windows.
*
* The SearchPath class does not test whether the paths exist
* or are directories. It is basically just a container.
*/
class SearchPath : public vector<sys::path>
{
public:
/**
* Create an empty SearchPath.
*/
SearchPath ();
/**
* Initialize SearchPath from a string where the string contains
* one or more absolute paths to directories which are delimited
* by a path separation character. The path delimeter is a
* colon(:) on unix and a semi-colon(;) on windows.
*
* Each path contained in the search path may or may not resolve to
* an existing directory in the filesystem.
*
* @param search_path A path string.
*/
SearchPath (const string& search_path);
/**
* Initialize SearchPath from a sys::path.
*
* @param directory_path A directory path.
*/
SearchPath (const sys::path& directory_path);
/**
* Initialize SearchPath from a vector of paths that may or may
* not exist.
*
* @param path A path.
*/
SearchPath (const vector<sys::path>& paths);
/**
* @return a search path string.
*
* The string that is returned contains the platform specific
* path separator.
*/
const string to_string () const;
/**
* Add all the directories in path to this.
*/
SearchPath& operator+= (const SearchPath& spath);
/**
* Add another directory path to the search path.
*/
SearchPath& operator+= (const sys::path& directory_path);
/**
* Concatenate another SearchPath onto this.
*/
SearchPath& operator+ (const SearchPath& other);
/**
* Add another path to the search path.
*/
SearchPath& operator+ (const sys::path& directory_path);
/**
* Add a sub-directory to each path in the search path.
* @param subdir The directory name, it should not contain
* any path separating tokens.
*/
SearchPath& add_subdirectory_to_paths (const string& subdir);
protected:
void add_directory (const sys::path& directory_path);
void add_directories (const vector<sys::path>& paths);
};
} // namespace PBD
#endif
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