/*!
"\nThe CommandLineParser class is designed for command line arguments parsing\n"
"Keys map: \n"
"Before you start to work with CommandLineParser you have to create a map for keys.\n"
" It will look like this\n"
" const char* keys =\n"
" {\n"
" { s| string| 123asd |string parameter}\n"
" { d| digit | 100 |digit parameter }\n"
" { c|noCamera|false |without camera }\n"
" { 1| |some text|help }\n"
" { 2| |333 |another help }\n"
" };\n"
"Usage syntax: \n"
" \"{\" - start of parameter string.\n"
" \"}\" - end of parameter string\n"
" \"|\" - separator between short name, full name, default value and help\n"
"Supported syntax: \n"
" --key1=arg1 <If a key with '--' must has an argument\n"
" you have to assign it through '=' sign.> \n"
"<If the key with '--' doesn't have any argument, it means that it is a bool key>\n"
" -key2=arg2 <If a key with '-' must has an argument \n"
" you have to assign it through '=' sign.> \n"
"If the key with '-' doesn't have any argument, it means that it is a bool key\n"
" key3 <This key can't has any parameter> \n"
"Usage: \n"
" Imagine that the input parameters are next:\n"
" -s=string_value --digit=250 --noCamera lena.jpg 10000\n"
" CommandLineParser parser(argc, argv, keys) - create a parser object\n"
" parser.get<string>(\"s\" or \"string\") will return you first parameter value\n"
" parser.get<string>(\"s\", false or \"string\", false) will return you first parameter value\n"
" without spaces in end and begin\n"
" parser.get<int>(\"d\" or \"digit\") will return you second parameter value.\n"
" It also works with 'unsigned int', 'double', and 'float' types>\n"
" parser.get<bool>(\"c\" or \"noCamera\") will return you true .\n"
" If you enter this key in commandline>\n"
" It return you false otherwise.\n"
" parser.get<string>(\"1\") will return you the first argument without parameter (lena.jpg) \n"
" parser.get<int>(\"2\") will return you the second argument without parameter (10000)\n"
" It also works with 'unsigned int', 'double', and 'float' types \n"
*/
class CV_EXPORTS CommandLineParser
{
public: //! the default constructor
CommandLineParser(int argc, const char* const argv[], const char* key_map); //! get parameter, you can choose: delete spaces in end and begin or not
template<typename _Tp>
_Tp get(const std::string& name, bool space_delete=true)
{
if (!has(name))
{
return _Tp();
}
std::string str = getString(name);
return analyzeValue<_Tp>(str, space_delete);
} //! print short name, full name, current value and help for all params
void printParams(); protected:
std::map<std::string, std::vector<std::string> > data;
std::string getString(const std::string& name); bool has(const std::string& keys); template<typename _Tp>
_Tp analyzeValue(const std::string& str, bool space_delete=false); template<typename _Tp>
static _Tp getData(const std::string& str)
{
_Tp res = _Tp();
std::stringstream s1(str);
s1 >> res;
return res;
} template<typename _Tp>
_Tp fromStringNumber(const std::string& str);//the default conversion function for numbers };template<> CV_EXPORTS
bool CommandLineParser::get<bool>(const std::string& name, bool space_delete);template<> CV_EXPORTS
std::string CommandLineParser::analyzeValue<std::string>(const std::string& str, bool space_delete);template<> CV_EXPORTS
int CommandLineParser::analyzeValue<int>(const std::string& str, bool space_delete);template<> CV_EXPORTS
unsigned int CommandLineParser::analyzeValue<unsigned int>(const std::string& str, bool space_delete);template<> CV_EXPORTS
uint64 CommandLineParser::analyzeValue<uint64>(const std::string& str, bool space_delete);template<> CV_EXPORTS
float CommandLineParser::analyzeValue<float>(const std::string& str, bool space_delete);template<> CV_EXPORTS
double CommandLineParser::analyzeValue<double>(const std::string& str, bool space_delete);
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