olb::CLIreader Class Reference

Very simple CLI argument parser. More...

#include <cliReader.h>

Collaboration diagram for olb::CLIreader:

Public Member Functions
	CLIreader (int &argc, char **argv)
bool	contains (const std::string &name) const
	Returns true iff name is specified.
std::string	operator[] (const std::string &name) const
	Returns value of token after name (i.e. by convention the value assigned to name)
template<typename TYPE >
TYPE	getValueOrFallback (const std::string &name, TYPE fallback) const
	Return value of name as TYPE or fallback if not provided.

Detailed Description

Very simple CLI argument parser.

Definition at line 34 of file cliReader.h.

Constructor & Destructor Documentation

CLIreader()

olb::CLIreader::CLIreader ( int & argc, char ** argv )

inline

Definition at line 39 of file cliReader.h.

                                    {
    for (int i=1; i < argc; ++i) {
      _tokens.emplace_back(argv[i]);
    }
  }

Member Function Documentation

contains()

bool olb::CLIreader::contains ( const std::string & name ) const

inline

Returns true iff name is specified.

Definition at line 46 of file cliReader.h.

                                             {
    return std::find(_tokens.begin(), _tokens.end(), name) != _tokens.end();
  }

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getValueOrFallback()

template<typename TYPE >

TYPE olb::CLIreader::getValueOrFallback ( const std::string & name, TYPE fallback ) const

inline

Return value of name as TYPE or fallback if not provided.

Definition at line 62 of file cliReader.h.

                                                                      {
    if (contains(name)) {
      const std::string str = operator[](name);
      TYPE value{};
      std::from_chars(str.data(), str.data() + str.size(), value);
      return value;
    } else {
      return fallback;
    }
  }

References contains(), and operator[]().

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operator[]()

std::string olb::CLIreader::operator[] ( const std::string & name ) const

inline

Returns value of token after name (i.e. by convention the value assigned to name)

Definition at line 51 of file cliReader.h.

                                                    {
    auto iter = std::find(_tokens.begin(), _tokens.end(), name);
    if (iter != _tokens.end() && ++iter != _tokens.end()){
      return *iter;
    } else {
      return std::string{};
    }
  }

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The documentation for this class was generated from the following file:

• src/io/cliReader.h