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
|
/*!********************************************************************
Audacity: A Digital Audio Editor
@file UrlDecode.cpp
@brief Define a function to decode an URL encode string.
Dmitry Vedenko
**********************************************************************/
#include "UrlDecode.h"
#include "HexHelpers.h"
namespace audacity
{
std::string UrlDecode (const std::string& url)
{
std::string result;
const size_t length = url.length ();
for (auto it = url.begin (), end = url.end (); it != end; ++it)
{
const char c = *it;
if (c != '%')
{
result.push_back (c);
}
else
{
if (++it == url.end ())
break; // Malformed input string
const char c1 = *it;
if (++it == url.end ())
break; // Malformed input string
const char c2 = *it;
result.push_back (HexCharToNum (c1) << 4 | HexCharToNum (c2));
}
}
return result;
}
}
|
