File: dir_nav_extensions.cpp

package info (click to toggle)
mldemos 0.5.1-3
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 32,224 kB
  • ctags: 46,525
  • sloc: cpp: 306,887; ansic: 167,718; ml: 126; sh: 109; makefile: 2
file content (87 lines) | stat: -rw-r--r-- 2,243 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
// Copyright (C) 2009  Davis E. King (davis@dlib.net)
// License: Boost Software License   See LICENSE.txt for the full license.
#ifndef DLIB_DIR_NAV_EXTENSIONs_CPP_
#define DLIB_DIR_NAV_EXTENSIONs_CPP_

#include "dir_nav_extensions.h"

namespace dlib
{

// ----------------------------------------------------------------------------------------

    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
        )
        {
            if (max_depth > 0)
            {
                top_of_tree.get_dirs(temp);
                const unsigned long start = result.size();
                result.insert(result.end(), temp.begin(), temp.end());
                const unsigned long end = start + temp.size();

                for (unsigned long i = start; i < end; ++i)
                {
                    get_all_sub_dirs(result[i], max_depth-1, result, temp);
                }
            }
        }
    }

// ----------------------------------------------------------------------------------------

    bool file_exists (
        const std::string& filename
    )
    {
        try
        {
            dlib::file temp(filename);
            return true;
        }
        catch (file::file_not_found&)
        {
            return false;
        }
    }

// ----------------------------------------------------------------------------------------

    directory get_parent_directory (
        const directory& dir
    )
    {
        return dir.get_parent();
    }

// ----------------------------------------------------------------------------------------

    directory get_parent_directory (
        const file& f
    )
    {
        if (f.full_name().size() == 0)
            return directory();

        std::string::size_type pos = f.full_name().find_last_of("\\/");
        
        if (pos == std::string::npos)
            return directory();

        return directory(f.full_name().substr(0,pos));
    }

// ----------------------------------------------------------------------------------------

}

#endif // DLIB_DIR_NAV_EXTENSIONs_CPP_