Class: Nicolus::OptParse

Inherits:
Object show all
Defined in:
lib/opt_parse.rb

Overview

Usage:

options = Nicolus::OptParse.parse(ARGV)
puts options[:input]
puts options[:output]
puts options[:inverse]
puts options[:unicode]

Class Method Summary collapse

Class Method Details

.parse(args) ⇒ Object

Return a structure describing the options.



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# File 'lib/opt_parse.rb', line 14

def self.parse(args)
  options = {}
  opts = OptionParser.new do |opts|
    opts.banner = "Usage: \n\tnicolus --input listes.csv --output combinaison.csv\n\tnicolus -i listes.csv -o combinaison.csv --inverse\n"

    opts.separator ""
    opts.separator "Mandatory options:"
    
    opts.on("-i", "--input [FILE]", :REQUIRED, String, "Csv File with lists of words") do |i|
      options[:input] = i
    end
    opts.on("-o", "--output [FILE]", :REQUIRED, String, "Csv File to store the result") do |o|
      options[:output] = o
    end
    
    opts.separator ""
    opts.separator "Optional options:"
    
    opts.on("-I", "--inverse", "Generate inverse combinaison") do |inv|
      options[:inverse] = inv
    end
    
    opts.on("-U", "--unicode", "Input is Unicode") do |unicode|
      options[:unicode] = unicode
    end
    
    opts.separator ""
    opts.separator "Common options:"
    
    # No argument, shows at tail.  This will print an options summary.
    opts.on_tail("-h", "--help", "Show this message") do
      puts opts
      exit
    end
  end

  if (args.size == 0)
    # No args specify > running help
    opts.parse!(["--help"])
  else
    opts.parse!(args)
  end
  
  options
end