diff options
Diffstat (limited to 'lib/optparse')
-rw-r--r-- | lib/optparse/ac.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/lib/optparse/ac.rb b/lib/optparse/ac.rb new file mode 100644 index 0000000000..6a8626094d --- /dev/null +++ b/lib/optparse/ac.rb @@ -0,0 +1,50 @@ +require 'optparse' + +class OptionParser::AC < OptionParser + private + + def _check_ac_args(name, block) + unless /\A\w[-\w]*\z/ =~ name + raise ArgumentError, name + end + unless block + raise ArgumentError, "no block given", ParseError.filter_backtrace(caller) + end + end + + def _ac_arg_enable(prefix, name, help_string, block) + _check_ac_args(name, block) + + sdesc = [] + ldesc = ["--#{prefix}-#{name}"] + desc = [help_string] + q = name.downcase + enable = Switch::NoArgument.new(nil, proc {true}, sdesc, ldesc, nil, desc, block) + disable = Switch::NoArgument.new(nil, proc {false}, sdesc, ldesc, nil, desc, block) + top.append(enable, [], ["enable-" + q], disable, ['disable-' + q]) + enable + end + + public + + def ac_arg_enable(name, help_string, &block) + _ac_arg_enable("enable", name, help_string, block) + end + + def ac_arg_disable(name, help_string, &block) + _ac_arg_enable("disable", name, help_string, block) + end + + def ac_arg_with(name, help_string, &block) + _check_ac_args(name, block) + + sdesc = [] + ldesc = ["--with-#{name}"] + desc = [help_string] + q = name.downcase + with = Switch::PlacedArgument.new(*search(:atype, String), sdesc, ldesc, nil, desc, block) + without = Switch::NoArgument.new(nil, proc {}, sdesc, ldesc, nil, desc, block) + top.append(with, [], ["with-" + q], without, ['without-' + q]) + with + end +end |