CommandLine

A generic C++ command line interpreter

CommandLineOptions

This class allows you to create command line options that are settable via the command line. For example:

CommandLineOptions options;
 
/*
 * Add a boolean option that has a default value of false
 */
options.add<bool>("some_flag", false);
 
/*
 * Add an option that initializes a floating point value.
 * We also add an optional description
 */
options.add<float>("float_option", 3.14159,
                   "A floating point option.");
 
/*
 * Add an option that sets the default value of a std::string
 */
options.add<std::string>("string_option", "hi there");

CommandLine

This class parses the command line and matches it against a given CommandLineOptions. Each option set in the command line will have its default value overwritten. Continuing the above example,

CommandLine cmd(options);
 
/*
 * Forward the arguments of main(int argc, char** argv):
 */
cmd.parse(argc, argv);
 
/*
 * Let's say we have the following command line:
 *
 * program_name --some_flag      --float_option=2.71828
 *
 * which (by the way) is equivalent to 
 *
 * program_name --some_flag=true --float_option=2.71828
 *
 * which (by the way) is equivalent to
 *
 * program_name --some_flag=1    --float_option=2.71828
 *
 * we can now pull the values of these options:
 */
 bool b;
 float f;
 std::string s;
 
 cmd.get("some_flag", b);     // some_flag should now be true
 cmd.get("float_option", f);  // float_option should now be 2.71828
 cmd.get("string_option", s); // should still be "hi there"

Dependencies

None.

Contact

Feel free to email me with bug reports or suggestions: jfernandez3@gatech.edu