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# frozen_string_literal: false
require_relative '../optparse'
#
# autoconf-like options.
#
class OptionParser::AC < OptionParser
# :stopdoc:
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
ARG_CONV = proc {|val| val.nil? ? true : val}
private_constant :ARG_CONV
def _ac_arg_enable(prefix, name, help_string, block)
_check_ac_args(name, block)
sdesc = []
ldesc = ["--#{prefix}-#{name}"]
desc = [help_string]
q = name.downcase
ac_block = proc {|val| block.call(ARG_CONV.call(val))}
enable = Switch::PlacedArgument.new(nil, ARG_CONV, sdesc, ldesc, nil, desc, ac_block)
disable = Switch::NoArgument.new(nil, proc {false}, sdesc, ldesc, nil, desc, ac_block)
top.append(enable, [], ["enable-" + q], disable, ['disable-' + q])
enable
end
# :startdoc:
public
# Define <tt>--enable</tt> / <tt>--disable</tt> style option
#
# Appears as <tt>--enable-<i>name</i></tt> in help message.
def ac_arg_enable(name, help_string, &block)
_ac_arg_enable("enable", name, help_string, block)
end
# Define <tt>--enable</tt> / <tt>--disable</tt> style option
#
# Appears as <tt>--disable-<i>name</i></tt> in help message.
def ac_arg_disable(name, help_string, &block)
_ac_arg_enable("disable", name, help_string, block)
end
# Define <tt>--with</tt> / <tt>--without</tt> style option
#
# Appears as <tt>--with-<i>name</i></tt> in help message.
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
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