[209] | 1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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[85] | 2 | * |
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[209] | 3 | * This file is a part of LEMON, a generic C++ optimization library. |
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[85] | 4 | * |
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| 5 | * Copyright (C) 2003-2008 |
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| 6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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| 8 | * |
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| 9 | * Permission to use, modify and distribute this software is granted |
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| 10 | * provided that this copyright notice appears in all copies. For |
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| 11 | * precise terms see the accompanying LICENSE file. |
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| 12 | * |
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| 13 | * This software is provided "AS IS" with no warranty of any kind, |
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| 14 | * express or implied, and with no claim as to its suitability for any |
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| 15 | * purpose. |
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| 16 | * |
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| 17 | */ |
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| 18 | |
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| 19 | #include <lemon/arg_parser.h> |
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| 20 | |
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| 21 | namespace lemon { |
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| 22 | |
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| 23 | void ArgParser::_showHelp(void *p) |
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| 24 | { |
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| 25 | (static_cast<ArgParser*>(p))->showHelp(); |
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| 26 | exit(1); |
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| 27 | } |
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| 28 | |
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| 29 | ArgParser::ArgParser(int argc, const char **argv) :_argc(argc), _argv(argv), |
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| 30 | _command_name(argv[0]) { |
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| 31 | funcOption("-help","Print a short help message",_showHelp,this); |
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| 32 | synonym("help","-help"); |
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| 33 | synonym("h","-help"); |
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| 34 | |
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| 35 | } |
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| 36 | |
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| 37 | ArgParser::~ArgParser() |
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| 38 | { |
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| 39 | for(Opts::iterator i=_opts.begin();i!=_opts.end();++i) |
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| 40 | if(i->second.self_delete) |
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[209] | 41 | switch(i->second.type) { |
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| 42 | case BOOL: |
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| 43 | delete i->second.bool_p; |
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| 44 | break; |
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| 45 | case STRING: |
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| 46 | delete i->second.string_p; |
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| 47 | break; |
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| 48 | case DOUBLE: |
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| 49 | delete i->second.double_p; |
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| 50 | break; |
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| 51 | case INTEGER: |
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| 52 | delete i->second.int_p; |
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| 53 | break; |
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| 54 | case UNKNOWN: |
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| 55 | break; |
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| 56 | case FUNC: |
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| 57 | break; |
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| 58 | } |
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[85] | 59 | } |
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[209] | 60 | |
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[85] | 61 | |
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| 62 | ArgParser &ArgParser::intOption(const std::string &name, |
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[209] | 63 | const std::string &help, |
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| 64 | int value, bool obl) |
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[85] | 65 | { |
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| 66 | ParData p; |
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| 67 | p.int_p=new int(value); |
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| 68 | p.self_delete=true; |
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| 69 | p.help=help; |
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| 70 | p.type=INTEGER; |
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| 71 | p.mandatory=obl; |
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| 72 | _opts[name]=p; |
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| 73 | return *this; |
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| 74 | } |
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| 75 | |
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| 76 | ArgParser &ArgParser::doubleOption(const std::string &name, |
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[209] | 77 | const std::string &help, |
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| 78 | double value, bool obl) |
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[85] | 79 | { |
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| 80 | ParData p; |
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| 81 | p.double_p=new double(value); |
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| 82 | p.self_delete=true; |
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| 83 | p.help=help; |
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| 84 | p.type=DOUBLE; |
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| 85 | p.mandatory=obl; |
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| 86 | _opts[name]=p; |
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| 87 | return *this; |
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| 88 | } |
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| 89 | |
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| 90 | ArgParser &ArgParser::boolOption(const std::string &name, |
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[209] | 91 | const std::string &help, |
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| 92 | bool value, bool obl) |
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[85] | 93 | { |
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| 94 | ParData p; |
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| 95 | p.bool_p=new bool(value); |
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| 96 | p.self_delete=true; |
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| 97 | p.help=help; |
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| 98 | p.type=BOOL; |
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| 99 | p.mandatory=obl; |
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| 100 | _opts[name]=p; |
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| 101 | return *this; |
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| 102 | } |
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| 103 | |
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| 104 | ArgParser &ArgParser::stringOption(const std::string &name, |
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[209] | 105 | const std::string &help, |
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| 106 | std::string value, bool obl) |
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[85] | 107 | { |
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| 108 | ParData p; |
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| 109 | p.string_p=new std::string(value); |
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| 110 | p.self_delete=true; |
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| 111 | p.help=help; |
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| 112 | p.type=STRING; |
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| 113 | p.mandatory=obl; |
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| 114 | _opts[name]=p; |
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| 115 | return *this; |
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| 116 | } |
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| 117 | |
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| 118 | ArgParser &ArgParser::refOption(const std::string &name, |
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[209] | 119 | const std::string &help, |
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| 120 | int &ref, bool obl) |
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[85] | 121 | { |
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| 122 | ParData p; |
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| 123 | p.int_p=&ref; |
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| 124 | p.self_delete=false; |
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| 125 | p.help=help; |
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| 126 | p.type=INTEGER; |
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| 127 | p.mandatory=obl; |
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| 128 | _opts[name]=p; |
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| 129 | return *this; |
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| 130 | } |
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| 131 | |
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| 132 | ArgParser &ArgParser::refOption(const std::string &name, |
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| 133 | const std::string &help, |
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| 134 | double &ref, bool obl) |
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| 135 | { |
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| 136 | ParData p; |
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| 137 | p.double_p=&ref; |
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| 138 | p.self_delete=false; |
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| 139 | p.help=help; |
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| 140 | p.type=DOUBLE; |
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| 141 | p.mandatory=obl; |
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| 142 | _opts[name]=p; |
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| 143 | return *this; |
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| 144 | } |
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| 145 | |
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| 146 | ArgParser &ArgParser::refOption(const std::string &name, |
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| 147 | const std::string &help, |
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| 148 | bool &ref, bool obl) |
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| 149 | { |
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| 150 | ParData p; |
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| 151 | p.bool_p=&ref; |
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| 152 | p.self_delete=false; |
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| 153 | p.help=help; |
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| 154 | p.type=BOOL; |
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| 155 | p.mandatory=obl; |
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| 156 | _opts[name]=p; |
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| 157 | |
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| 158 | ref = false; |
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| 159 | |
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| 160 | return *this; |
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| 161 | } |
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| 162 | |
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| 163 | ArgParser &ArgParser::refOption(const std::string &name, |
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[209] | 164 | const std::string &help, |
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| 165 | std::string &ref, bool obl) |
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[85] | 166 | { |
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| 167 | ParData p; |
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| 168 | p.string_p=&ref; |
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| 169 | p.self_delete=false; |
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| 170 | p.help=help; |
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| 171 | p.type=STRING; |
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| 172 | p.mandatory=obl; |
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| 173 | _opts[name]=p; |
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| 174 | return *this; |
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| 175 | } |
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| 176 | |
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| 177 | ArgParser &ArgParser::funcOption(const std::string &name, |
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[209] | 178 | const std::string &help, |
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| 179 | void (*func)(void *),void *data) |
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[85] | 180 | { |
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| 181 | ParData p; |
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| 182 | p.func_p.p=func; |
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| 183 | p.func_p.data=data; |
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| 184 | p.self_delete=false; |
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| 185 | p.help=help; |
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| 186 | p.type=FUNC; |
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| 187 | p.mandatory=false; |
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| 188 | _opts[name]=p; |
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| 189 | return *this; |
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| 190 | } |
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| 191 | |
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| 192 | ArgParser &ArgParser::optionGroup(const std::string &group, |
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[209] | 193 | const std::string &opt) |
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[85] | 194 | { |
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| 195 | Opts::iterator i = _opts.find(opt); |
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| 196 | LEMON_ASSERT(i!=_opts.end(), "Unknown option: '"+opt+"'"); |
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[209] | 197 | LEMON_ASSERT(!(i->second.ingroup), |
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[85] | 198 | "Option already in option group: '"+opt+"'"); |
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| 199 | GroupData &g=_groups[group]; |
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| 200 | g.opts.push_back(opt); |
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| 201 | i->second.ingroup=true; |
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| 202 | return *this; |
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| 203 | } |
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| 204 | |
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| 205 | ArgParser &ArgParser::onlyOneGroup(const std::string &group) |
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| 206 | { |
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| 207 | GroupData &g=_groups[group]; |
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| 208 | g.only_one=true; |
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| 209 | return *this; |
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| 210 | } |
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| 211 | |
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| 212 | ArgParser &ArgParser::synonym(const std::string &syn, |
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[209] | 213 | const std::string &opt) |
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[85] | 214 | { |
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| 215 | Opts::iterator o = _opts.find(opt); |
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| 216 | Opts::iterator s = _opts.find(syn); |
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| 217 | LEMON_ASSERT(o!=_opts.end(), "Unknown option: '"+opt+"'"); |
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| 218 | LEMON_ASSERT(s==_opts.end(), "Option already used: '"+syn+"'"); |
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| 219 | ParData p; |
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| 220 | p.help=opt; |
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| 221 | p.mandatory=false; |
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| 222 | p.syn=true; |
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| 223 | _opts[syn]=p; |
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| 224 | o->second.has_syn=true; |
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| 225 | return *this; |
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| 226 | } |
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| 227 | |
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| 228 | ArgParser &ArgParser::mandatoryGroup(const std::string &group) |
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| 229 | { |
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| 230 | GroupData &g=_groups[group]; |
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| 231 | g.mandatory=true; |
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| 232 | return *this; |
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| 233 | } |
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| 234 | |
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| 235 | ArgParser &ArgParser::other(const std::string &name, |
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[209] | 236 | const std::string &help) |
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[85] | 237 | { |
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| 238 | _others_help.push_back(OtherArg(name,help)); |
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| 239 | return *this; |
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| 240 | } |
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| 241 | |
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[214] | 242 | void ArgParser::show(std::ostream &os,Opts::const_iterator i) const |
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[85] | 243 | { |
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| 244 | os << "-" << i->first; |
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| 245 | if(i->second.has_syn) |
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[214] | 246 | for(Opts::const_iterator j=_opts.begin();j!=_opts.end();++j) |
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[209] | 247 | if(j->second.syn&&j->second.help==i->first) |
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| 248 | os << "|-" << j->first; |
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[85] | 249 | switch(i->second.type) { |
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| 250 | case STRING: |
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| 251 | os << " str"; |
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| 252 | break; |
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| 253 | case INTEGER: |
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| 254 | os << " int"; |
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| 255 | break; |
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| 256 | case DOUBLE: |
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| 257 | os << " num"; |
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| 258 | break; |
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| 259 | default: |
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| 260 | break; |
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| 261 | } |
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| 262 | } |
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| 263 | |
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[214] | 264 | void ArgParser::show(std::ostream &os,Groups::const_iterator i) const |
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[85] | 265 | { |
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[214] | 266 | GroupData::Opts::const_iterator o=i->second.opts.begin(); |
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[85] | 267 | while(o!=i->second.opts.end()) { |
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| 268 | show(os,_opts.find(*o)); |
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| 269 | ++o; |
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| 270 | if(o!=i->second.opts.end()) os<<'|'; |
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| 271 | } |
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| 272 | } |
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[209] | 273 | |
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[214] | 274 | void ArgParser::showHelp(Opts::const_iterator i) const |
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[85] | 275 | { |
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| 276 | if(i->second.help.size()==0||i->second.syn) return; |
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| 277 | std::cerr << " "; |
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| 278 | show(std::cerr,i); |
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| 279 | std::cerr << std::endl; |
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| 280 | std::cerr << " " << i->second.help << std::endl; |
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| 281 | } |
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[214] | 282 | void ArgParser::showHelp(std::vector<ArgParser::OtherArg>::const_iterator i) |
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| 283 | const |
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[85] | 284 | { |
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| 285 | if(i->help.size()==0) return; |
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| 286 | std::cerr << " " << i->name << std::endl |
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[209] | 287 | << " " << i->help << std::endl; |
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[85] | 288 | } |
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[209] | 289 | |
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[214] | 290 | void ArgParser::shortHelp() const |
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[85] | 291 | { |
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| 292 | const unsigned int LINE_LEN=77; |
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| 293 | const std::string indent(" "); |
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| 294 | std::cerr << "Usage:\n " << _command_name; |
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| 295 | int pos=_command_name.size()+2; |
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[214] | 296 | for(Groups::const_iterator g=_groups.begin();g!=_groups.end();++g) { |
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[85] | 297 | std::ostringstream cstr; |
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| 298 | cstr << ' '; |
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| 299 | if(!g->second.mandatory) cstr << '['; |
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| 300 | show(cstr,g); |
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| 301 | if(!g->second.mandatory) cstr << ']'; |
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| 302 | if(pos+cstr.str().size()>LINE_LEN) { |
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[209] | 303 | std::cerr << std::endl << indent; |
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| 304 | pos=indent.size(); |
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[85] | 305 | } |
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| 306 | std::cerr << cstr.str(); |
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| 307 | pos+=cstr.str().size(); |
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| 308 | } |
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[214] | 309 | for(Opts::const_iterator i=_opts.begin();i!=_opts.end();++i) |
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[85] | 310 | if(!i->second.ingroup&&!i->second.syn) { |
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[209] | 311 | std::ostringstream cstr; |
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| 312 | cstr << ' '; |
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| 313 | if(!i->second.mandatory) cstr << '['; |
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| 314 | show(cstr,i); |
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| 315 | if(!i->second.mandatory) cstr << ']'; |
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| 316 | if(pos+cstr.str().size()>LINE_LEN) { |
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| 317 | std::cerr << std::endl << indent; |
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| 318 | pos=indent.size(); |
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| 319 | } |
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| 320 | std::cerr << cstr.str(); |
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| 321 | pos+=cstr.str().size(); |
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[85] | 322 | } |
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[214] | 323 | for(std::vector<OtherArg>::const_iterator i=_others_help.begin(); |
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[209] | 324 | i!=_others_help.end();++i) |
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[85] | 325 | { |
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[209] | 326 | std::ostringstream cstr; |
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| 327 | cstr << ' ' << i->name; |
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| 328 | |
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| 329 | if(pos+cstr.str().size()>LINE_LEN) { |
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| 330 | std::cerr << std::endl << indent; |
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| 331 | pos=indent.size(); |
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| 332 | } |
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| 333 | std::cerr << cstr.str(); |
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| 334 | pos+=cstr.str().size(); |
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[85] | 335 | } |
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| 336 | std::cerr << std::endl; |
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| 337 | } |
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[209] | 338 | |
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[214] | 339 | void ArgParser::showHelp() const |
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[85] | 340 | { |
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| 341 | shortHelp(); |
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| 342 | std::cerr << "Where:\n"; |
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[214] | 343 | for(std::vector<OtherArg>::const_iterator i=_others_help.begin(); |
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[209] | 344 | i!=_others_help.end();++i) showHelp(i); |
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[214] | 345 | for(Opts::const_iterator i=_opts.begin();i!=_opts.end();++i) showHelp(i); |
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[85] | 346 | exit(1); |
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| 347 | } |
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[209] | 348 | |
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| 349 | |
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[214] | 350 | void ArgParser::unknownOpt(std::string arg) const |
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[85] | 351 | { |
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| 352 | std::cerr << "\nUnknown option: " << arg << "\n"; |
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| 353 | std::cerr << "\nType '" << _command_name << |
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| 354 | " --help' to obtain a short summary on the usage.\n\n"; |
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| 355 | exit(1); |
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| 356 | } |
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[209] | 357 | |
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[214] | 358 | void ArgParser::requiresValue(std::string arg, OptType t) const |
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[85] | 359 | { |
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| 360 | std::cerr << "Argument '" << arg << "' requires a"; |
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| 361 | switch(t) { |
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| 362 | case STRING: |
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| 363 | std::cerr << " string"; |
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| 364 | break; |
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| 365 | case INTEGER: |
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| 366 | std::cerr << "n integer"; |
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| 367 | break; |
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| 368 | case DOUBLE: |
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| 369 | std::cerr << " floating point"; |
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| 370 | break; |
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| 371 | default: |
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| 372 | break; |
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| 373 | } |
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| 374 | std::cerr << " value\n\n"; |
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| 375 | showHelp(); |
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| 376 | } |
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[209] | 377 | |
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[85] | 378 | |
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[214] | 379 | void ArgParser::checkMandatories() const |
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[85] | 380 | { |
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| 381 | bool ok=true; |
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[214] | 382 | for(Opts::const_iterator i=_opts.begin();i!=_opts.end();++i) |
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[209] | 383 | if(i->second.mandatory&&!i->second.set) |
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| 384 | { |
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| 385 | if(ok) |
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| 386 | std::cerr << _command_name |
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| 387 | << ": The following mandatory arguments are missing.\n"; |
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| 388 | ok=false; |
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| 389 | showHelp(i); |
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| 390 | } |
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[214] | 391 | for(Groups::const_iterator i=_groups.begin();i!=_groups.end();++i) |
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[85] | 392 | if(i->second.mandatory||i->second.only_one) |
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[209] | 393 | { |
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| 394 | int set=0; |
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[214] | 395 | for(GroupData::Opts::const_iterator o=i->second.opts.begin(); |
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[209] | 396 | o!=i->second.opts.end();++o) |
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| 397 | if(_opts.find(*o)->second.set) ++set; |
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| 398 | if(i->second.mandatory&&!set) { |
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[210] | 399 | std::cerr << _command_name << |
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| 400 | ": At least one of the following arguments is mandatory.\n"; |
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[209] | 401 | ok=false; |
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[214] | 402 | for(GroupData::Opts::const_iterator o=i->second.opts.begin(); |
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[209] | 403 | o!=i->second.opts.end();++o) |
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| 404 | showHelp(_opts.find(*o)); |
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| 405 | } |
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| 406 | if(i->second.only_one&&set>1) { |
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[210] | 407 | std::cerr << _command_name << |
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| 408 | ": At most one of the following arguments can be given.\n"; |
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[209] | 409 | ok=false; |
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[214] | 410 | for(GroupData::Opts::const_iterator o=i->second.opts.begin(); |
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[209] | 411 | o!=i->second.opts.end();++o) |
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| 412 | showHelp(_opts.find(*o)); |
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| 413 | } |
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| 414 | } |
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[85] | 415 | if(!ok) { |
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| 416 | std::cerr << "\nType '" << _command_name << |
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[209] | 417 | " --help' to obtain a short summary on the usage.\n\n"; |
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[85] | 418 | exit(1); |
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| 419 | } |
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| 420 | } |
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| 421 | |
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| 422 | ArgParser &ArgParser::parse() |
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| 423 | { |
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| 424 | for(int ar=1; ar<_argc; ++ar) { |
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| 425 | std::string arg(_argv[ar]); |
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| 426 | if (arg[0] != '-' || arg.size() == 1) { |
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[209] | 427 | _file_args.push_back(arg); |
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[85] | 428 | } |
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| 429 | else { |
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[209] | 430 | Opts::iterator i = _opts.find(arg.substr(1)); |
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| 431 | if(i==_opts.end()) unknownOpt(arg); |
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| 432 | else { |
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| 433 | if(i->second.syn) i=_opts.find(i->second.help); |
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| 434 | ParData &p(i->second); |
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| 435 | if (p.type==BOOL) *p.bool_p=true; |
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| 436 | else if (p.type==FUNC) p.func_p.p(p.func_p.data); |
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| 437 | else if(++ar==_argc) requiresValue(arg, p.type); |
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| 438 | else { |
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| 439 | std::string val(_argv[ar]); |
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| 440 | std::istringstream vals(val); |
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| 441 | switch(p.type) { |
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| 442 | case STRING: |
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| 443 | *p.string_p=val; |
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| 444 | break; |
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| 445 | case INTEGER: |
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| 446 | vals >> *p.int_p; |
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| 447 | break; |
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| 448 | case DOUBLE: |
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| 449 | vals >> *p.double_p; |
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| 450 | break; |
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| 451 | default: |
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| 452 | break; |
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| 453 | } |
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| 454 | if(p.type!=STRING&&(!vals||!vals.eof())) |
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| 455 | requiresValue(arg, p.type); |
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| 456 | } |
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| 457 | p.set = true; |
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| 458 | } |
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[85] | 459 | } |
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| 460 | } |
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| 461 | checkMandatories(); |
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| 462 | |
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| 463 | return *this; |
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[209] | 464 | } |
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[85] | 465 | |
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| 466 | } |
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