Sha256: e940e93654c69c85477a541a184c26967ee32f34f45f9a37186e0f48baf60bd4
Contents?: true
Size: 1.44 KB
Versions: 27
Compression:
Stored size: 1.44 KB
Contents
require 'cl/arg'
class Cl
class Args
include Enumerable
def define(const, name, *args)
opts = args.last.is_a?(Hash) ? args.pop.dup : {}
opts[:description] = args.shift if args.any?
arg = Arg.new(name, opts)
arg.define(const)
self.args << arg
end
def apply(cmd, args, opts)
return args if self.args.empty? || opts[:help]
args = grouped(args)
validate(args)
args.map { |(arg, value)| arg.set(cmd, value) }.flatten(1)
end
def each(&block)
args.each(&block)
end
def index(*args, &block)
self.args.index(*args, &block)
end
def args
@args ||= []
end
private
def validate(args)
raise ArgumentError.new(:missing_args, args.size, required) if args.size < required
raise ArgumentError.new(:too_many_args, args.size, allowed) if args.size > allowed && !splat?
end
def allowed
args.size
end
def splat?
any?(&:splat?)
end
def required
select(&:required?).size
end
def grouped(values)
values.inject([0, {}]) do |(ix, group), value|
arg = args[ix]
if arg && arg.splat?
group[arg] ||= []
group[arg] << value
ix += 1 if args.size + group[arg].size > values.size
else
group[arg] = value
ix += 1
end
[ix, group]
end.last
end
end
end
Version data entries
27 entries across 27 versions & 1 rubygems