module Tins::GO
Public Instance Methods
Source
# File lib/tins/go.rb, line 30 def go(s, args = ARGV, defaults: {}) d = defaults || {} b, v = s.scan(/(.)(:?)/).inject([ {}, {} ]) { |t, (o, a)| a = a == ?: t[a ? 1 : 0][o] = a ? nil : false t } b.each_key do |k| d.key?(k) or next if [ 0, false, nil ].include?(d[k]) b[k] = false elsif d[k].respond_to?(:to_int) b[k] = d[k].to_int else b[k] = 1 end end v.each_key do |k| d.key?(k) or next if [ 0, false, nil ].include?(d[k]) v[k] = nil else v[k] = d[k].to_s end end r = [] while a = args.shift /\A-(?<p>.+)/ =~ a or (r << a; next) until p == '' o = p.slice!(0, 1) if v.key?(o) if p.empty? && args.empty? r << a break 1 elsif p == '' a = args.shift else a = p end if v[o].nil? || !(EnumerableExtension === v[o]) a = a.dup a.extend EnumerableExtension a << a v[o] = a else v[o] << a end break elsif b.key?(o) if b[o] b[o] += 1 else b[o] = 1 end else r << a end end && break end r.reject! { |a| (b[p] = false) || true if /\A~(?<p>.)/ =~ a } args.replace r b.merge(v) end
Parses the argument array args, according to the pattern s, to retrieve the single character command line options from it. If s is ‘xy:’ an option ‘-x’ without an option argument is searched, and an option ‘-y foo’ with an option argument (‘foo’). To
disable the ‘-x’ option, pass ‘~x’.
The defaults argument specifies default values for the options.
An option hash is returned with all found options set to true or the found option argument.