Line data Source code
1 : // Copyright (c) 2006-2022 Made to Order Software Corp. All Rights Reserved
2 : //
3 : // https://snapwebsites.org/project/advgetopt
4 : // contact@m2osw.com
5 : //
6 : // This program is free software; you can redistribute it and/or modify
7 : // it under the terms of the GNU General Public License as published by
8 : // the Free Software Foundation; either version 2 of the License, or
9 : // (at your option) any later version.
10 : //
11 : // This program is distributed in the hope that it will be useful,
12 : // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 : // GNU General Public License for more details.
15 : //
16 : // You should have received a copy of the GNU General Public License along
17 : // with this program; if not, write to the Free Software Foundation, Inc.,
18 : // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 : #pragma once
20 :
21 : /** \file
22 : * \brief Definitions of the advanced getopt class.
23 : *
24 : * The advgetopt library offers an advanced way to manage your command
25 : * line tools options on the command line, in environment variables, and
26 : * in configuration files.
27 : */
28 :
29 : // advgetopt lib
30 : //
31 : #include "advgetopt/option_info.h"
32 : #include "advgetopt/options.h"
33 : #include "advgetopt/validator.h"
34 : #include "advgetopt/variables.h"
35 :
36 :
37 : // C++ lib
38 : //
39 : #include <limits>
40 : #include <map>
41 : #include <memory>
42 : #include <ostream>
43 : #include <vector>
44 :
45 :
46 :
47 : namespace advgetopt
48 : {
49 :
50 :
51 : constexpr char const CONFIGURATION_SECTIONS[] = "configuration_sections";
52 :
53 :
54 : constexpr flag_t SYSTEM_OPTION_NONE = 0x0000;
55 :
56 : // system commands
57 : constexpr flag_t SYSTEM_OPTION_HELP = 0x0001;
58 : constexpr flag_t SYSTEM_OPTION_VERSION = 0x0002;
59 : constexpr flag_t SYSTEM_OPTION_COPYRIGHT = 0x0004;
60 : constexpr flag_t SYSTEM_OPTION_LICENSE = 0x0008;
61 : constexpr flag_t SYSTEM_OPTION_BUILD_DATE = 0x0010;
62 : constexpr flag_t SYSTEM_OPTION_ENVIRONMENT_VARIABLE_NAME = 0x0020;
63 : constexpr flag_t SYSTEM_OPTION_CONFIGURATION_FILENAMES = 0x0040;
64 : constexpr flag_t SYSTEM_OPTION_PATH_TO_OPTION_DEFINITIONS = 0x0080;
65 : constexpr flag_t SYSTEM_OPTION_SHOW_OPTION_SOURCES = 0x0100;
66 :
67 : // system options
68 : constexpr flag_t SYSTEM_OPTION_CONFIG_DIR = 0x1000;
69 :
70 : constexpr flag_t SYSTEM_OPTION_COMMANDS_MASK = 0x0FFF;
71 : constexpr flag_t SYSTEM_OPTION_OPTIONS_MASK = 0xF000;
72 :
73 :
74 :
75 319 : class getopt
76 : {
77 : public:
78 : typedef std::shared_ptr<getopt> pointer_t;
79 :
80 : getopt(options_environment const & opts);
81 : getopt(options_environment const & opts
82 : , int argc
83 : , char * argv[]);
84 :
85 : options_environment const &
86 : get_options_environment() const;
87 : bool has_flag(flag_t flag) const;
88 : void reset();
89 :
90 : void parse_options_info(
91 : option const * opts
92 : , bool ignore_duplicates = false);
93 : void parse_options_from_file(
94 : std::string const & filename
95 : , int min_section
96 : , int max_section);
97 : void add_option(option_info::pointer_t opt, bool ignore_duplicates = false);
98 : void link_aliases();
99 : void set_short_name(
100 : std::string const & name
101 : , short_name_t short_name);
102 :
103 : void finish_parsing(int argc, char * argv[]);
104 :
105 : void parse_program_name(char * argv[]);
106 :
107 : void parse_configuration_files(
108 : int argc = 0
109 : , char * argv[] = nullptr);
110 : void process_configuration_file(std::string const & filename);
111 :
112 : std::string get_environment_variable() const;
113 : static string_list_t split_environment(std::string const & environment);
114 : void parse_environment_variable();
115 :
116 : void parse_string(
117 : std::string const & str
118 : , option_source_t source = option_source_t::SOURCE_DIRECT
119 : , bool only_environment_variable = false);
120 : void parse_arguments(
121 : int argc
122 : , char * argv[]
123 : , option_source_t source = option_source_t::SOURCE_DIRECT
124 : , bool only_environment_variable = false);
125 :
126 : flag_t process_system_options(std::basic_ostream<char> & out);
127 :
128 : option_info::map_by_name_t const &
129 : get_options() const;
130 : option_info::pointer_t get_option(std::string const & name, bool exact_option = false) const;
131 : option_info::pointer_t get_option(short_name_t name, bool exact_option = false) const;
132 : bool is_defined(std::string const & name) const;
133 : std::size_t size(std::string const & name) const;
134 : bool has_default(std::string const & name) const;
135 : std::string get_default(std::string const & name) const;
136 : long get_long(
137 : std::string const & name
138 : , int idx = 0
139 : , long min = std::numeric_limits<long>::min()
140 : , long max = std::numeric_limits<long>::max()) const;
141 : double get_double(
142 : std::string const & name
143 : , int idx = 0
144 : , double min = std::numeric_limits<double>::min()
145 : , double max = std::numeric_limits<double>::max()) const;
146 : std::string get_string(
147 : std::string const & name
148 : , int idx = 0
149 : , bool raw = false) const;
150 : std::string operator [] (std::string const & name) const;
151 : option_info_ref operator [] (std::string const & name);
152 :
153 : std::string get_program_name() const;
154 : std::string get_program_fullname() const;
155 : std::string get_project_name() const;
156 : std::string get_group_name() const;
157 : std::string get_environment_variable_name() const;
158 : size_t get_configuration_filename_size() const;
159 : std::string get_configuration_filename(int idx) const;
160 : string_list_t get_configuration_filenames(
161 : bool exists
162 : , bool writable
163 : , int argc = 0
164 : , char * argv[] = nullptr) const;
165 :
166 : group_description const *
167 : find_group(flag_t group) const;
168 : std::string usage(flag_t show = GETOPT_FLAG_SHOW_MOST) const;
169 : std::string process_help_string(char const * help) const;
170 : static std::string breakup_line(
171 : std::string line
172 : , size_t const option_width
173 : , size_t const line_width);
174 : static std::string format_usage_string(
175 : std::string const & argument
176 : , std::string const & help
177 : , size_t const option_width
178 : , size_t const line_width);
179 : static size_t get_line_width();
180 : static std::string sanitizer_details();
181 :
182 : variables::pointer_t get_variables() const;
183 :
184 : private:
185 : void initialize_parser(options_environment const & opt_env);
186 : void parse_options_from_group_names();
187 : void parse_options_from_file();
188 : void show_option_sources(std::basic_ostream<char> & out);
189 : option_info::pointer_t get_alias_destination(option_info::pointer_t opt) const;
190 : void define_environment_variable_data();
191 : void is_parsed() const;
192 : static string_list_t find_config_dir(int argc, char * argv[]);
193 :
194 : void add_options(
195 : option_info::pointer_t opt
196 : , int & i
197 : , int argc
198 : , char ** argv
199 : , option_source_t source = option_source_t::SOURCE_DIRECT);
200 : void add_option_from_string(
201 : option_info::pointer_t opt
202 : , std::string const & value
203 : , std::string const & filename
204 : , option_source_t source = option_source_t::SOURCE_DIRECT);
205 :
206 : std::string f_program_fullname = std::string();
207 : std::string f_program_name = std::string();
208 :
209 : options_environment f_options_environment = options_environment();
210 : option_info::map_by_name_t f_options_by_name = option_info::map_by_name_t();
211 : option_info::map_by_short_name_t f_options_by_short_name = option_info::map_by_short_name_t();
212 : option_info::pointer_t f_default_option = option_info::pointer_t();
213 : std::string f_environment_variable = std::string();
214 : variables::pointer_t f_variables = variables::pointer_t();
215 : bool f_parsed = false;
216 : };
217 :
218 :
219 :
220 :
221 : } // namespace advgetopt
222 : // vim: ts=4 sw=4 et
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