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// Copyright (C) 2009 Davis E. King ([email protected])
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_DIR_NAV_EXTENSIONs_H_
#define DLIB_DIR_NAV_EXTENSIONs_H_
#include <string>
#include <vector>
#include <algorithm>
#include "dir_nav_extensions_abstract.h"
#include "../dir_nav.h"
#include "../string.h"
namespace dlib
{
// ----------------------------------------------------------------------------------------
bool file_exists (
const std::string& filename
);
// ----------------------------------------------------------------------------------------
namespace implementation_details
{
void get_all_sub_dirs (
const directory& top_of_tree,
unsigned long max_depth,
std::vector<directory>& result,
std::vector<directory>& temp
);
}
// ----------------------------------------------------------------------------------------
template <typename T>
const std::vector<file> get_files_in_directory_tree (
const directory& top_of_tree,
const T& add_file,
unsigned long max_depth = 30
)
{
std::vector<file> result, temp;
std::vector<directory> dirs, dirs_temp;
dirs.push_back(top_of_tree);
// get all the directories in the tree first
implementation_details::get_all_sub_dirs(top_of_tree, max_depth, dirs, dirs_temp);
// now just loop over all the directories and pick out the files we want to keep
for (unsigned long d = 0; d < dirs.size(); ++d)
{
dirs[d].get_files(temp);
// pick out the members of temp that we should keep
for (unsigned long i = 0; i < temp.size(); ++i)
{
if (add_file(temp[i]))
result.push_back(temp[i]);
}
}
return result;
}
// ----------------------------------------------------------------------------------------
class match_ending
{
public:
match_ending (
const std::string& ending_
) : ending(ending_) {}
bool operator() (
const file& f
) const
{
// if the ending is bigger than f's name then it obviously doesn't match
if (ending.size() > f.name().size())
return false;
// now check if the actual characters that make up the end of the file name
// matches what is in ending.
return std::equal(ending.begin(), ending.end(), f.name().end()-ending.size());
}
private:
std::string ending;
};
// ----------------------------------------------------------------------------------------
class match_endings
{
public:
match_endings (
const std::string& endings_
)
{
const std::vector<std::string>& s = split(endings_);
for (unsigned long i = 0; i < s.size(); ++i)
{
endings.push_back(match_ending(s[i]));
}
}
bool operator() (
const file& f
) const
{
for (unsigned long i = 0; i < endings.size(); ++i)
{
if (endings[i](f))
return true;
}
return false;
}
private:
std::vector<match_ending> endings;
};
// ----------------------------------------------------------------------------------------
class match_all
{
public:
bool operator() (
const file&
) const { return true; }
};
// ----------------------------------------------------------------------------------------
directory get_parent_directory (
const directory& dir
);
// ----------------------------------------------------------------------------------------
directory get_parent_directory (
const file& f
);
// ----------------------------------------------------------------------------------------
std::string select_oldest_file (
const std::string& filename1,
const std::string& filename2
);
// ----------------------------------------------------------------------------------------
std::string select_newest_file (
const std::string& filename1,
const std::string& filename2
);
// ----------------------------------------------------------------------------------------
}
#ifdef NO_MAKEFILE
#include "dir_nav_extensions.cpp"
#endif
#endif // DLIB_DIR_NAV_EXTENSIONs_H_
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