Libosmium  2.15.4
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 (https://osmcode.org/libosmium).
7 
8 Copyright 2013-2019 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  inline 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  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 std::size_t pos = data.find_first_of('=');
112  if (pos == std::string::npos) {
113  m_options[data] = "true";
114  } else {
115  const 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  bool empty() const noexcept {
154  return m_options.empty();
155  }
156 
160  std::size_t size() const noexcept {
161  return m_options.size();
162  }
163 
167  iterator begin() noexcept {
168  return m_options.begin();
169  }
170 
174  iterator end() noexcept {
175  return m_options.end();
176  }
177 
181  const_iterator begin() const noexcept {
182  return m_options.cbegin();
183  }
184 
188  const_iterator end() const noexcept {
189  return m_options.cend();
190  }
191 
195  const_iterator cbegin() const noexcept {
196  return m_options.cbegin();
197  }
198 
202  const_iterator cend() const noexcept {
203  return m_options.cend();
204  }
205 
206  }; // class Options
207 
208  } // namespace util
209 
210 } // namespace osmium
211 
212 #endif // OSMIUM_UTIL_OPTIONS_HPP
osmium::util::Options::size
std::size_t size() const noexcept
Definition: options.hpp:160
osmium::util::Options::set
void set(const std::string &key, const char *value)
Definition: options.hpp:94
osmium::util::Options
Definition: options.hpp:58
osmium::util::Options::begin
iterator begin() noexcept
Definition: options.hpp:167
osmium::util::Options::Options
Options()=default
osmium::util::Options::begin
const_iterator begin() const noexcept
Definition: options.hpp:181
osmium::util::Options::value_type
option_map::value_type value_type
Definition: options.hpp:67
osmium::util::Options::set
void set(const std::string &key, bool value)
Definition: options.hpp:101
osmium::util::Options::get
std::string get(const std::string &key, const std::string &default_value="") const noexcept
Definition: options.hpp:124
osmium::util::Options::Options
Options(const std::initializer_list< value_type > &values)
Definition: options.hpp:80
osmium::util::Options::is_true
bool is_true(const std::string &key) const noexcept
Definition: options.hpp:136
osmium
Namespace for everything in the Osmium library.
Definition: assembler.hpp:53
osmium::util::Options::is_not_false
bool is_not_false(const std::string &key) const noexcept
Definition: options.hpp:145
osmium::util::Options::set
void set(const std::string &data)
Definition: options.hpp:110
osmium::util::Options::cend
const_iterator cend() const noexcept
Definition: options.hpp:202
osmium::util::Options::m_options
option_map m_options
Definition: options.hpp:61
osmium::util::Options::end
iterator end() noexcept
Definition: options.hpp:174
osmium::util::Options::const_iterator
option_map::const_iterator const_iterator
Definition: options.hpp:66
osmium::util::Options::empty
bool empty() const noexcept
Definition: options.hpp:153
osmium::util::Options::option_map
std::map< std::string, std::string > option_map
Definition: options.hpp:60
osmium::util::Options::end
const_iterator end() const noexcept
Definition: options.hpp:188
osmium::util::Options::set
void set(const std::string &key, const std::string &value)
Definition: options.hpp:87
osmium::util::Options::iterator
option_map::iterator iterator
Definition: options.hpp:65
osmium::util::Options::cbegin
const_iterator cbegin() const noexcept
Definition: options.hpp:195