smithlab_cpp/OptionParser.hpp at master · smithlabcode/smithlab_cpp · GitHub

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/* Part of SMITHLAB software

* University of Southern California and

* Andrew D. Smith

* Authors: Andrew D. Smith

* This program is free software: you can redistribute it and/or

* modify it under the terms of the GNU General Public License as

* published by the Free Software Foundation, either version 3 of the

* License, or (at your option) any later version.

* This program is distributed in the hope that it will be useful, but

* WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* General Public License for more details.

#ifndef OPTION_PARSER_HPP

#define OPTION_PARSER_HPP

#include <cstddef>

#include <limits>

#include <string>

#include <vector>

class Option {

public:

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, int &val);

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, unsigned &val);

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, long &val);

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, unsigned long &val);

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, float &val);

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, double &val);

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, std::string &val);

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, bool &val);

Option(const std::string l_name, const char s_name, const std::string descr,

const bool reqd, char &val);

bool parse(std::vector<std::string> &command_line);

void parse_config_file(std::vector<std::string> &options);

std::string format_option_name() const;

std::string format_option_description(const size_t offset,

const bool show_default = false) const;

std::string format_default_value() const;

private:

unsigned arg_type;

std::string long_name;

char short_name;

std::string description;

bool required;

bool specified;

// the values of the options: ugly but clean

int *int_value;

unsigned int *uint_value;

long *long_value;

unsigned long *ulong_value;

float *float_value;

double *double_value;

std::string *string_value;

bool *bool_value;

char *char_value;

void format_option(const std::string &argument);

static void set_max_length(size_t num);

static size_t get_max_length();

bool option_match(const std::string &other);

};

class OptionParser {

public:

OptionParser(const std::string nm, const std::string descr,

std::string noflag_msg = "",

const size_t n_left = std::numeric_limits<size_t>::max());

void set_show_defaults() { show_defaults = true; }