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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
*
* Copyright (c) 1998-2002
* John Maddock
*
* Use, modification and distribution are subject to the
* Boost Software License, Version 1.0. (See accompanying file
* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*
*/
/*
* LOCATION: see http://www.boost.org for most recent version.
* FILE regex_match_example.cpp
* VERSION see <boost/version.hpp>
* DESCRIPTION: ftp based regex_match example.
*/
#include <boost/regex.hpp>
#include <cstdlib>
#include <stdlib.h>
#include <string>
#include <iostream>
using namespace std;
using namespace boost;
regex expression("^([0-9]+)(\\-| |$)(.*)$");
// process_ftp:
// on success returns the ftp response code, and fills
// msg with the ftp response message.
int process_ftp(const char* response, std::string* msg)
{
cmatch what;
if(regex_match(response, what, expression))
{
// what[0] contains the whole string
// what[1] contains the response code
// what[2] contains the separator character
// what[3] contains the text message.
if(msg)
msg->assign(what[3].first, what[3].second);
return ::atoi(what[1].first);
}
// failure did not match
if(msg)
msg->erase();
return -1;
}
#if defined(BOOST_MSVC) || (defined(BOOST_BORLANDC) && (BOOST_BORLANDC == 0x550))
//
// problem with std::getline under MSVC6sp3
istream& getline(istream& is, std::string& s)
{
s.erase();
char c = static_cast<char>(is.get());
while(c != '\n')
{
s.append(1, c);
c = static_cast<char>(is.get());
}
return is;
}
#endif
int main(int argc, const char*[])
{
std::string in, out;
do
{
if(argc == 1)
{
cout << "enter test string" << endl;
getline(cin, in);
if(in == "quit")
break;
}
else
in = "100 this is an ftp message text";
int result;
result = process_ftp(in.c_str(), &out);
if(result != -1)
{
cout << "Match found:" << endl;
cout << "Response code: " << result << endl;
cout << "Message text: " << out << endl;
}
else
{
cout << "Match not found" << endl;
}
cout << endl;
} while(argc == 1);
return 0;
}
|
