2 ///////////////////////////////////////////////////////////////////////////
3 // This program is free software: you can redistribute it and/or modify //
4 // it under the terms of the version 3 of the GNU General Public License //
5 // as published by the Free Software Foundation. //
7 // This program is distributed in the hope that it will be useful, but //
8 // WITHOUT ANY WARRANTY; without even the implied warranty of //
9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
10 // General Public License for more details. //
12 // You should have received a copy of the GNU General Public License //
13 // along with this program. If not, see <http://www.gnu.org/licenses/>. //
15 // Written by Francois Fleuret, (C) IDIAP //
16 // Contact <francois.fleuret@idiap.ch> for comments & bug reports //
17 ///////////////////////////////////////////////////////////////////////////
19 // All this is clearly non-optimal, loaded with news and deletes and
20 // should be rewritten.
24 #include "param_parser.h"
26 ParamParser::ParamParser() : _nb_max(10),
28 _names(new char *[_nb_max]),
29 _values(new char *[_nb_max]),
30 _changed(new bool[_nb_max]) { }
32 ParamParser::~ParamParser() {
33 for(int k = 0; k < _nb; k++) {
42 void ParamParser::add_association(const char *variable_name, const char *variable_value, bool change) {
45 for(n = 0; n < _nb && strcmp(variable_name, _names[n]) != 0; n++);
49 _values[n] = new char[strlen(variable_value) + 1];
50 strcpy(_values[n], variable_value);
54 nm = _nb_max; grow(&nm, _nb, &_names, 2);
55 nm = _nb_max; grow(&nm, _nb, &_values, 2);
56 grow(&_nb_max, _nb, &_changed, 2);
58 _names[_nb] = new char[strlen(variable_name) + 1];
59 strcpy(_names[_nb], variable_name);
60 _values[_nb] = new char[strlen(variable_value) + 1];
61 strcpy(_values[_nb], variable_value);
62 _changed[_nb] = change;
67 char *ParamParser::get_association(const char *variable_name) {
69 for(n = 0; n < _nb && strcmp(variable_name, _names[n]) != 0; n++);
70 if(n < _nb) return _values[n];
72 cerr << "Unknown parameter \"" << variable_name << "\", existing ones are" << endl;
73 for(int n = 0; n < _nb; n++)
74 cerr << " \"" << _names[n] << "\"" << endl;
79 int ParamParser::get_association_int(const char *variable_name) {
80 char *u = get_association(variable_name);
83 if((*s < '0' || *s > '9') && *s != '-') {
84 cerr << "Non-numerical value for " << variable_name << " (" << u << ")" << endl;
90 scalar_t ParamParser::get_association_scalar(const char *variable_name) {
91 char *u = get_association(variable_name);
94 if((*s < '0' || *s > '9') && *s != '.' && *s != 'e' && *s != '-') {
95 cerr << "Non-numerical value for " << variable_name << " (" << u << ")" << endl;
101 bool ParamParser::get_association_bool(const char *variable_name) {
102 char *value = get_association(variable_name);
103 if(strcasecmp(value, "") == 0 || strcasecmp(value, "y") == 0 || strcasecmp(value, "yes") == 0) return true;
104 if(strcasecmp(value, "n") == 0 || strcasecmp(value, "no") == 0) return false;
105 cerr << "Expects nothing (for yes), or y[es] or n[o] for a boolean argument and got '" << value << "'" << endl;
109 void ParamParser::parse_options(int argc, char **argv,
110 bool allow_undefined,
111 int *new_argc, char **new_argv) {
115 if(new_argc && new_argv)
116 new_argv[(*new_argc)++] = argv[0];
119 if(strncmp(argv[i], "--", 2) == 0) {
120 // This is so 70s! I luuuuv it!
121 char variable_name[buffer_size] = "", variable_value[buffer_size] = "";
122 char *o = argv[i] + 2, *s = variable_name, *u = variable_value;
123 while(*o && *o != '=') *s++ = *o++;
125 if(*o) { o++; while(*o) *u++ = *o++; }
127 if(!allow_undefined) get_association(variable_name);
128 add_association(variable_name, variable_value, true);
130 if(new_argc && new_argv)
131 new_argv[(*new_argc)++] = argv[i];
133 cerr << "Can not parse " << argv[i] << endl;
141 void ParamParser::print_all(ostream *os) {
142 for(int n = 0; n < _nb; n++) {
143 (*os) << (_changed[n] ? " * " : " ") << "\"" << _names[n] << "\" \"" << _values[n] << "\"" << endl;