Libosmium  2.11.1
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(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  data.erase(pos);
117  set(data, value);
118  }
119  }
120 
125  std::string get(const std::string& key, const std::string& default_value="") const noexcept {
126  const auto it = m_options.find(key);
127  if (it == m_options.end()) {
128  return default_value;
129  }
130  return it->second;
131  }
132 
137  bool is_true(const std::string& key) const noexcept {
138  const std::string value = get(key);
139  return (value == "true" || value == "yes");
140  }
141 
146  bool is_not_false(const std::string& key) const noexcept {
147  const std::string value = get(key);
148  return !(value == "false" || value == "no");
149  }
150 
154  size_t size() const noexcept {
155  return m_options.size();
156  }
157 
161  iterator begin() noexcept {
162  return m_options.begin();
163  }
164 
168  iterator end() noexcept {
169  return m_options.end();
170  }
171 
175  const_iterator begin() const noexcept {
176  return m_options.cbegin();
177  }
178 
182  const_iterator end() const noexcept {
183  return m_options.cend();
184  }
185 
189  const_iterator cbegin() const noexcept {
190  return m_options.cbegin();
191  }
192 
196  const_iterator cend() const noexcept {
197  return m_options.cend();
198  }
199 
200  }; // class Options
201 
202  } // namespace util
203 
204 } // namespace osmium
205 
206 #endif // OSMIUM_UTIL_OPTIONS_HPP
bool is_not_false(const std::string &key) const noexcept
Definition: options.hpp:146
const_iterator cbegin() const noexcept
Definition: options.hpp:189
std::map< std::string, std::string > option_map
Definition: options.hpp:60
iterator end() noexcept
Definition: options.hpp:168
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:137
Namespace for everything in the Osmium library.
Definition: assembler.hpp:73
option_map::const_iterator const_iterator
Definition: options.hpp:66
const_iterator begin() const noexcept
Definition: options.hpp:175
const_iterator cend() const noexcept
Definition: options.hpp:196
const_iterator end() const noexcept
Definition: options.hpp:182
size_t size() const noexcept
Definition: options.hpp:154
option_map::iterator iterator
Definition: options.hpp:65
iterator begin() noexcept
Definition: options.hpp:161