root/trunk/examples/util/config/ResponseFile.d

/*******************************************************************************

    License:    Boost Software License, v. 1.0
                Academic Free License, v. 3.0
                BSD License

    Authors:    Marcin Kuszczak, www.zapytajmnie.com (author's christian site)
                This software is inspired and partially based on Boost C++
                library named 'program_options' and created by Vladimir Prus.

    Version:    0.9.1
    Date:       30-Apr-2008

    History:    0.9.0 (08-Oct-2007) -   initial public version

    Description:
                This example is meant to allow to test response file support
                in ProgramOptions library. Response file management is built
                into library, so it does not need additional work for library
                user. It can be although disallowed by using proper style flag.

                For a test, build and run:
                    ResponseFile -I foo @ResponseFile.rsp

                The expected output is:
                    Include paths: foo bar biz

 ******************************************************************************/

import std.stdio;
import std.string;
import std.file;

import doost.util.config.ProgramOptions;
import doost.util.config.CommandLineStorage;

//------------------------------------------------------------------------------

/*******************************************************************************
    Program entry point
 ******************************************************************************/
void main(char[][] args) {
    try {
        auto desc= new RegularOptions("Allowed options");
        desc.options()
            ("help", "produce a help message")
            ("include-path,I", define!(char[][])().composing(), "include path")
            ("magic", define!(int), "magic value")
        ;

        auto po =   (new ProgramOptions).next(
                        (new CommandLineStorage(args, desc))
                    );

        po.connect;

        if ("help" in po) {
            writefln(desc);
        }

        if ("include-path" in po) {
            writefln("Include paths: ", po["include-path"].as!(char[][]));
        }

        if ("magic" in po) {
            writefln("Magic value: ", po["magic"].as!(int));
        }

        po.disconnect;
    }
    catch(ProgramOptionsException e) {
        writefln(e);
    }
}