Libosmium  2.12.2
Fast and flexible C++ library for working with OpenStreetMap data
options.hpp
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1 #ifndef OSMIUM_UTIL_OPTIONS_HPP
2 #define OSMIUM_UTIL_OPTIONS_HPP
3 
4 /*
5 
6 This file is part of Osmium (http://osmcode.org/libosmium).
7 
8 Copyright 2013-2017 Jochen Topf <jochen@topf.org> and others (see README).
9 
10 Boost Software License - Version 1.0 - August 17th, 2003
11 
12 Permission is hereby granted, free of charge, to any person or organization
13 obtaining a copy of the software and accompanying documentation covered by
14 this license (the "Software") to use, reproduce, display, distribute,
15 execute, and transmit the Software, and to prepare derivative works of the
16 Software, and to permit third-parties to whom the Software is furnished to
17 do so, all subject to the following:
18 
19 The copyright notices in the Software and this entire statement, including
20 the above license grant, this restriction and the following disclaimer,
21 must be included in all copies of the Software, in whole or in part, and
22 all derivative works of the Software, unless such copies or derivative
23 works are solely in the form of machine-executable object code generated by
24 a source language processor.
25 
26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
29 SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
30 FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
31 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
32 DEALINGS IN THE SOFTWARE.
33 
34 */
35 
36 #include <cstddef>
37 #include <initializer_list>
38 #include <map>
39 #include <string>
40 #include <utility>
41 
42 namespace osmium {
43 
44  namespace util {
45 
58  class Options {
59 
60  using option_map = std::map<std::string, std::string>;
62 
63  public:
64 
65  using iterator = option_map::iterator;
66  using const_iterator = option_map::const_iterator;
67  using value_type = option_map::value_type;
68 
72  Options() = default;
73 
80  explicit Options(const std::initializer_list<value_type>& values) :
81  m_options(values) {
82  }
83 
87  void set(const std::string& key, const std::string& value) {
88  m_options[key] = value;
89  }
90 
94  void set(const std::string& key, const char* value) {
95  m_options[key] = value;
96  }
97 
101  void set(const std::string& key, bool value) {
102  m_options[key] = value ? "true" : "false";
103  }
104 
110  void set(const std::string& data) {
111  const size_t pos = data.find_first_of('=');
112  if (pos == std::string::npos) {
113  m_options[data] = "true";
114  } else {
115  std::string value = data.substr(pos+1);
116  set(data.substr(0, pos), value);
117  }
118  }
119 
124  std::string get(const std::string& key, const std::string& default_value="") const noexcept {
125  const auto it = m_options.find(key);
126  if (it == m_options.end()) {
127  return default_value;
128  }
129  return it->second;
130  }
131 
136  bool is_true(const std::string& key) const noexcept {
137  const std::string value = get(key);
138  return (value == "true" || value == "yes");
139  }
140 
145  bool is_not_false(const std::string& key) const noexcept {
146  const std::string value = get(key);
147  return !(value == "false" || value == "no");
148  }
149 
153  size_t size() const noexcept {
154  return m_options.size();
155  }
156 
160  iterator begin() noexcept {
161  return m_options.begin();
162  }
163 
167  iterator end() noexcept {
168  return m_options.end();
169  }
170 
174  const_iterator begin() const noexcept {
175  return m_options.cbegin();
176  }
177 
181  const_iterator end() const noexcept {
182  return m_options.cend();
183  }
184 
188  const_iterator cbegin() const noexcept {
189  return m_options.cbegin();
190  }
191 
195  const_iterator cend() const noexcept {
196  return m_options.cend();
197  }
198 
199  }; // class Options
200 
201  } // namespace util
202 
203 } // namespace osmium
204 
205 #endif // OSMIUM_UTIL_OPTIONS_HPP
bool is_not_false(const std::string &key) const noexcept
Definition: options.hpp:145
const_iterator cbegin() const noexcept
Definition: options.hpp:188
std::map< std::string, std::string > option_map
Definition: options.hpp:60
iterator end() noexcept
Definition: options.hpp:167
option_map::value_type value_type
Definition: options.hpp:67
option_map m_options
Definition: options.hpp:61
Options(const std::initializer_list< value_type > &values)
Definition: options.hpp:80
Definition: options.hpp:58
bool is_true(const std::string &key) const noexcept
Definition: options.hpp:136
Namespace for everything in the Osmium library.
Definition: assembler.hpp:63
option_map::const_iterator const_iterator
Definition: options.hpp:66
const_iterator begin() const noexcept
Definition: options.hpp:174
const_iterator cend() const noexcept
Definition: options.hpp:195
const_iterator end() const noexcept
Definition: options.hpp:181
size_t size() const noexcept
Definition: options.hpp:153
option_map::iterator iterator
Definition: options.hpp:65
iterator begin() noexcept
Definition: options.hpp:160