-
Notifications
You must be signed in to change notification settings - Fork 0
/
Directory.cpp
67 lines (56 loc) · 1.45 KB
/
Directory.cpp
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
#include "Directory.h"
//removes ./ from the front if it's there
Directory comparable(const Directory &directory)
{
if(directory.substr(0, 2) != "./")
return directory;
else
return directory.substr(2, directory.length()-2);
}
//returns the leading directory if present
Directory leadingDir(const Directory &directory)
{
size_t pos = directory.find_first_of('/');
if(pos == std::string::npos)
return "";
else
return directory.substr(0, pos+1);
}
Directory stripLeadingDir(const Directory &directory)
{
size_t pos = directory.find_first_of('/');
if(pos == std::string::npos)
return "";
else
{
pos++;
return directory.substr(pos, directory.length()-pos);
}
}
std::deque<Directory> dirDeque(const Directory &directory)
{
Directory pwd = comparable(directory);
std::deque<std::string> dDeque;
while(pwd.size())
{
dDeque.push_back(leadingDir(pwd));
pwd = stripLeadingDir(pwd);
}
return dDeque;
}
std::string pathBetween(const Directory &sourceDir, const Directory &targetDir)
{
std::deque<std::string> sourceDeque = dirDeque(sourceDir),
targetDeque = dirDeque(targetDir);
while(sourceDeque.size() > 0 && targetDeque.size() > 0 && sourceDeque[0] == targetDeque[0])
{
sourceDeque.pop_front();
targetDeque.pop_front();
}
std::string sourceToTarget = "";
for(size_t s=0; s<sourceDeque.size(); s++)
sourceToTarget += "../";
for(size_t t=0; t<targetDeque.size(); t++)
sourceToTarget += targetDeque[t];
return sourceToTarget;
}