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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
// Copyright (C) 2011-2015 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <iostream>
#include <algorithm>
#include <string>
#include <ctype.h>
#include <util/filename.h>
using namespace std;
namespace isc {
namespace util {
// Split string into components. Any backslashes are assumed to have
// been replaced by forward slashes.
void
Filename::split(const string& full_name, string& directory,
string& name, string& extension) const
{
directory = name = extension = "";
if (!full_name.empty()) {
bool dir_present = false;
// Find the directory.
size_t last_slash = full_name.find_last_of('/');
if (last_slash != string::npos) {
// Found the last slash, so extract directory component and
// set where the scan for the last_dot should terminate.
directory = full_name.substr(0, last_slash + 1);
if (last_slash == full_name.size()) {
// The entire string was a directory, so exit not and don't
// do any more searching.
return;
}
// Found a directory so note the fact.
dir_present = true;
}
// Now search backwards for the last ".".
size_t last_dot = full_name.find_last_of('.');
if ((last_dot == string::npos) ||
(dir_present && (last_dot < last_slash))) {
// Last "." either not found or it occurs to the left of the last
// slash if a directory was present (so it is part of a directory
// name). In this case, the remainder of the string after the slash
// is the name part.
name = full_name.substr(last_slash + 1);
return;
}
// Did find a valid dot, so it and everything to the right is the
// extension...
extension = full_name.substr(last_dot);
// ... and the name of the file is everything in between.
if ((last_dot - last_slash) > 1) {
name = full_name.substr(last_slash + 1, last_dot - last_slash - 1);
}
}
}
// Expand the stored filename with the default.
string
Filename::expandWithDefault(const string& defname) const {
string def_directory("");
string def_name("");
string def_extension("");
// Normalize the input string.
string copy_defname = isc::util::str::trim(defname);
#ifdef WIN32
isc::util::str::normalizeSlash(copy_defname);
#endif
// Split into the components
split(copy_defname, def_directory, def_name, def_extension);
// Now construct the result.
string retstring =
(directory_.empty() ? def_directory : directory_) +
(name_.empty() ? def_name : name_) +
(extension_.empty() ? def_extension : extension_);
return (retstring);
}
// Use the stored name as default for a given name
string
Filename::useAsDefault(const string& name) const {
string name_directory("");
string name_name("");
string name_extension("");
// Normalize the input string.
string copy_name = isc::util::str::trim(name);
#ifdef WIN32
isc::util::str::normalizeSlash(copy_name);
#endif
// Split into the components
split(copy_name, name_directory, name_name, name_extension);
// Now construct the result.
string retstring =
(name_directory.empty() ? directory_ : name_directory) +
(name_name.empty() ? name_ : name_name) +
(name_extension.empty() ? extension_ : name_extension);
return (retstring);
}
void
Filename::setDirectory(const std::string& new_directory) {
std::string directory(new_directory);
if (directory.length() > 0) {
// append '/' if necessary
size_t sep = directory.rfind('/');
if (sep == std::string::npos || sep < directory.size() - 1) {
directory += "/";
}
}
// and regenerate the full name
std::string full_name = directory + name_ + extension_;
directory_.swap(directory);
full_name_.swap(full_name);
}
} // namespace log
} // namespace isc
|
