argvreader: A Java repository from MihailRis

Example:

public static void main(String[] args) {
    try {
        ArgvReader reader = new ArgvReader(args);
        reader.addHelpHeadLine("SomeAnimationEngine (c) MihailRis 1970");
        reader.addHelpHeadLine("Author: https://github.com/MihailRis");
        reader.addUsage("source-file", "preview film");
        reader.addUsage("source-file --render output-file", "render film to file");
        reader.addUsage("source-file --render output-file --speed 1.5", "render film to file with speed x1.5");
        reader.addExample("test.oi --render test.mp4", "render film test.oi to test.mp4");
        reader.add("render", "render film to video", (keyword, parser) ->
            System.out.println("Render to "+parser.readString("output-file")), "r");
        reader.add("framerate", "set animation framerate", (keyword, parser) ->
            System.out.println("Framerate set to "+parser.readInt("framerate")), "fps", "f");
        reader.add("speed", "set time multiplier", (keyword, parser) ->
            System.out.println("Speed set to "+parser.readFloat("speed")), "s");

        if (reader.isNextHelp()) {
            reader.printHelp();
            return;
        }
        String film = reader.nextWord("film");
        System.out.println("film: " + film);
        reader.execute();
    } catch (ArgvParsingException e) {
        System.err.println("arguments parsing error: "+e.getLocalizedMessage());
    }
}

--help output example:

SomeAnimationEngine (c) MihailRis 1970
Author: https://github.com/MihailRis
Usage:
  [command]                                                    [description]
  $executable source-file                                      : preview film
  $executable source-file --render output-file                 : render film to file
  $executable source-file --render output-file --speed 1.5     : render film to file with speed x1.5
Examples:
  [command]                                 [description]
  $executable test.oi --render test.mp4     : render film test.oi to test.mp4
Args:
--framerate/--fps/-f            set animation framerate
--render/-r                     render film to video
--help/-h                       show help
--speed/-s                      set time multiplier

MihailRis/argvreader