1//
2// Automated Testing Framework (atf)
3//
4// Copyright (c) 2007 The NetBSD Foundation, Inc.
5// All rights reserved.
6//
7// Redistribution and use in source and binary forms, with or without
8// modification, are permitted provided that the following conditions
9// are met:
10// 1. Redistributions of source code must retain the above copyright
11//    notice, this list of conditions and the following disclaimer.
12// 2. Redistributions in binary form must reproduce the above copyright
13//    notice, this list of conditions and the following disclaimer in the
14//    documentation and/or other materials provided with the distribution.
15//
16// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
17// CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20// IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
21// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27// IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28//
29
30#include <stdexcept>
31
32#include "expand.hpp"
33#include "text.hpp"
34
35namespace impl = tools::expand;
36#define IMPL_NAME "tools::expand"
37
38// ------------------------------------------------------------------------
39// Auxiliary functions.
40// ------------------------------------------------------------------------
41
42namespace {
43
44std::string
45glob_to_regex(const std::string& glob)
46{
47    std::string regex;
48    regex.reserve(glob.length() * 2);
49
50    regex += '^';
51    for (std::string::const_iterator iter = glob.begin(); iter != glob.end();
52         iter++) {
53        switch (*iter) {
54        case '*': regex += ".*"; break;
55        case '?': regex += "."; break;
56        default: regex += *iter;
57        }
58    }
59    regex += '$';
60
61    return regex;
62}
63
64} // anonymous namespace
65
66// ------------------------------------------------------------------------
67// Free functions.
68// ------------------------------------------------------------------------
69
70bool
71impl::is_glob(const std::string& glob)
72{
73    // NOTE: Keep this in sync with glob_to_regex!
74    return glob.find_first_of("*?") != std::string::npos;
75}
76
77bool
78impl::matches_glob(const std::string& glob, const std::string& candidate)
79{
80    return tools::text::match(candidate, glob_to_regex(glob));
81}
82