* sample/optparse/subcommand.rb: a sample for sub commands like

  cvs.  contributed by Minero Aoki.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7532 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 19 insertions, 0 deletions

diff --git a/sample/optparse/subcommand.rb b/sample/optparse/subcommand.rb
new file mode 100755
index 0000000000..21c42dd60a
--- /dev/null
+++ b/sample/optparse/subcommand.rb
@@ -0,0 +1,19 @@
+#! /usr/bin/ruby
+# contributed by Minero Aoki.
+
+require 'optparse'
+
+parser = OptionParser.new
+parser.on('-i') { puts "-i" }
+parser.on('-o') { puts '-o' }
+
+subparsers = Hash.new {|h,k|
+  $stderr.puts "no such subcommand: #{k}"
+  exit 1
+}
+subparsers['add'] = OptionParser.new.on('-i') { puts "add -i" }
+subparsers['del'] = OptionParser.new.on('-i') { puts "del -i" }
+subparsers['list'] = OptionParser.new.on('-i') { puts "list -i" }
+
+parser.order!(ARGV)
+subparsers[ARGV.shift].parse!(ARGV) unless ARGV.empty?