A function-like argument parser for command-line applications written in Ruby, it's a gem.
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Arguvia v0.1.0

This gem contains a function-like argument parser for command-line applications.

This is an example of a command-line application that uses function-like arguments:

dictionary.rb words(10) open-file(words.txt) Singular


Arguvia gem allows any Ruby application to use function-like arguments for its command-line interface.

This gem contains the Arguvia class, which parses the given list of arguments to map them to class members and indeternal Ruby values.

Using the Arguvia class

Let's take the introductory example to show how the Arguvia class works:

dictionary.rb words(10) open-file(words.txt) Singular

The dictionary.rb hypothetic script uses function-like command-line arguments through the arguvia gem.

The Arguvia class generates the class members for the given command-line arguments.

require 'arguvia'
x = Arguvia.new     # It equals to 'Arguvia.new(ARGV)'
x.words             # => 10
x.open_file         # => "words.txt"
x.singular          # => true
x.undefined         # => false

Arguvia class uses the dynamic and metaprogramming features of Ruby to generate an object, which members maps the given arguments.

Examples of valid arguments

Argument Identifier Value
foo x.foo true
--etc x._etc true
-h x._h true
x.baz nil
func(1) x.func 1
dir(etc) x.dir "etc"
xs(1, 2, 3) x.xs [1,2,3]
pair(a, 7) x.pair ["a", 7]

To do

  • Support for special symbols.
  • Support for literal strings (allow internal spaces)