Fresh start

1 files changed, 612 insertions, 0 deletions

diff --git a/jni/ruby/lib/getoptlong.rb b/jni/ruby/lib/getoptlong.rb
new file mode 100644
index 0000000..cf635f0
--- /dev/null
+++ b/jni/ruby/lib/getoptlong.rb
@@ -0,0 +1,612 @@
+#
+# GetoptLong for Ruby
+#
+# Copyright (C) 1998, 1999, 2000  Motoyuki Kasahara.
+#
+# You may redistribute and/or modify this library under the same license
+# terms as Ruby.
+#
+# See GetoptLong for documentation.
+#
+# Additional documents and the latest version of `getoptlong.rb' can be
+# found at http://www.sra.co.jp/people/m-kasahr/ruby/getoptlong/
+
+# The GetoptLong class allows you to parse command line options similarly to
+# the GNU getopt_long() C library call. Note, however, that GetoptLong is a
+# pure Ruby implementation.
+#
+# GetoptLong allows for POSIX-style options like <tt>--file</tt> as well
+# as single letter options like <tt>-f</tt>
+#
+# The empty option <tt>--</tt> (two minus symbols) is used to end option
+# processing. This can be particularly important if options have optional
+# arguments.
+#
+# Here is a simple example of usage:
+#
+#     require 'getoptlong'
+#
+#     opts = GetoptLong.new(
+#       [ '--help', '-h', GetoptLong::NO_ARGUMENT ],
+#       [ '--repeat', '-n', GetoptLong::REQUIRED_ARGUMENT ],
+#       [ '--name', GetoptLong::OPTIONAL_ARGUMENT ]
+#     )
+#
+#     dir = nil
+#     name = nil
+#     repetitions = 1
+#     opts.each do |opt, arg|
+#       case opt
+#         when '--help'
+#           puts <<-EOF
+#     hello [OPTION] ... DIR
+#
+#     -h, --help:
+#        show help
+#
+#     --repeat x, -n x:
+#        repeat x times
+#
+#     --name [name]:
+#        greet user by name, if name not supplied default is John
+#
+#     DIR: The directory in which to issue the greeting.
+#           EOF
+#         when '--repeat'
+#           repetitions = arg.to_i
+#         when '--name'
+#           if arg == ''
+#             name = 'John'
+#           else
+#             name = arg
+#           end
+#       end
+#     end
+#
+#     if ARGV.length != 1
+#       puts "Missing dir argument (try --help)"
+#       exit 0
+#     end
+#
+#     dir = ARGV.shift
+#
+#     Dir.chdir(dir)
+#     for i in (1..repetitions)
+#       print "Hello"
+#       if name
+#         print ", #{name}"
+#       end
+#       puts
+#     end
+#
+# Example command line:
+#
+#     hello -n 6 --name -- /tmp
+#
+class GetoptLong
+  #
+  # Orderings.
+  #
+  ORDERINGS = [REQUIRE_ORDER = 0, PERMUTE = 1, RETURN_IN_ORDER = 2]
+
+  #
+  # Argument flags.
+  #
+  ARGUMENT_FLAGS = [NO_ARGUMENT = 0, REQUIRED_ARGUMENT = 1,
+    OPTIONAL_ARGUMENT = 2]
+
+  #
+  # Status codes.
+  #
+  STATUS_YET, STATUS_STARTED, STATUS_TERMINATED = 0, 1, 2
+
+  #
+  # Error types.
+  #
+  class Error  < StandardError; end
+  class AmbiguousOption   < Error; end
+  class NeedlessArgument < Error; end
+  class MissingArgument  < Error; end
+  class InvalidOption    < Error; end
+
+  #
+  # Set up option processing.
+  #
+  # The options to support are passed to new() as an array of arrays.
+  # Each sub-array contains any number of String option names which carry
+  # the same meaning, and one of the following flags:
+  #
+  # GetoptLong::NO_ARGUMENT :: Option does not take an argument.
+  #
+  # GetoptLong::REQUIRED_ARGUMENT :: Option always takes an argument.
+  #
+  # GetoptLong::OPTIONAL_ARGUMENT :: Option may or may not take an argument.
+  #
+  # The first option name is considered to be the preferred (canonical) name.
+  # Other than that, the elements of each sub-array can be in any order.
+  #
+  def initialize(*arguments)
+    #
+    # Current ordering.
+    #
+    if ENV.include?('POSIXLY_CORRECT')
+      @ordering = REQUIRE_ORDER
+    else
+      @ordering = PERMUTE
+    end
+
+    #
+    # Hash table of option names.
+    # Keys of the table are option names, and their values are canonical
+    # names of the options.
+    #
+    @canonical_names = Hash.new
+
+    #
+    # Hash table of argument flags.
+    # Keys of the table are option names, and their values are argument
+    # flags of the options.
+    #
+    @argument_flags = Hash.new
+
+    #
+    # Whether error messages are output to $stderr.
+    #
+    @quiet = FALSE
+
+    #
+    # Status code.
+    #
+    @status = STATUS_YET
+
+    #
+    # Error code.
+    #
+    @error = nil
+
+    #
+    # Error message.
+    #
+    @error_message = nil
+
+    #
+    # Rest of catenated short options.
+    #
+    @rest_singles = ''
+
+    #
+    # List of non-option-arguments.
+    # Append them to ARGV when option processing is terminated.
+    #
+    @non_option_arguments = Array.new
+
+    if 0 < arguments.length
+      set_options(*arguments)
+    end
+  end
+
+  #
+  # Set the handling of the ordering of options and arguments.
+  # A RuntimeError is raised if option processing has already started.
+  #
+  # The supplied value must be a member of GetoptLong::ORDERINGS. It alters
+  # the processing of options as follows:
+  #
+  # <b>REQUIRE_ORDER</b> :
+  #
+  # Options are required to occur before non-options.
+  #
+  # Processing of options ends as soon as a word is encountered that has not
+  # been preceded by an appropriate option flag.
+  #
+  # For example, if -a and -b are options which do not take arguments,
+  # parsing command line arguments of '-a one -b two' would result in
+  # 'one', '-b', 'two' being left in ARGV, and only ('-a', '') being
+  # processed as an option/arg pair.
+  #
+  # This is the default ordering, if the environment variable
+  # POSIXLY_CORRECT is set. (This is for compatibility with GNU getopt_long.)
+  #
+  # <b>PERMUTE</b> :
+  #
+  # Options can occur anywhere in the command line parsed. This is the
+  # default behavior.
+  #
+  # Every sequence of words which can be interpreted as an option (with or
+  # without argument) is treated as an option; non-option words are skipped.
+  #
+  # For example, if -a does not require an argument and -b optionally takes
+  # an argument, parsing '-a one -b two three' would result in ('-a','') and
+  # ('-b', 'two') being processed as option/arg pairs, and 'one','three'
+  # being left in ARGV.
+  #
+  # If the ordering is set to PERMUTE but the environment variable
+  # POSIXLY_CORRECT is set, REQUIRE_ORDER is used instead. This is for
+  # compatibility with GNU getopt_long.
+  #
+  # <b>RETURN_IN_ORDER</b> :
+  #
+  # All words on the command line are processed as options. Words not
+  # preceded by a short or long option flag are passed as arguments
+  # with an option of '' (empty string).
+  #
+  # For example, if -a requires an argument but -b does not, a command line
+  # of '-a one -b two three' would result in option/arg pairs of ('-a', 'one')
+  # ('-b', ''), ('', 'two'), ('', 'three') being processed.
+  #
+  def ordering=(ordering)
+    #
+    # The method is failed if option processing has already started.
+    #
+    if @status != STATUS_YET
+      set_error(ArgumentError, "argument error")
+      raise RuntimeError,
+        "invoke ordering=, but option processing has already started"
+    end
+
+    #
+    # Check ordering.
+    #
+    if !ORDERINGS.include?(ordering)
+      raise ArgumentError, "invalid ordering `#{ordering}'"
+    end
+    if ordering == PERMUTE && ENV.include?('POSIXLY_CORRECT')
+      @ordering = REQUIRE_ORDER
+    else
+      @ordering = ordering
+    end
+  end
+
+  #
+  # Return ordering.
+  #
+  attr_reader :ordering
+
+  #
+  # Set options. Takes the same argument as GetoptLong.new.
+  #
+  # Raises a RuntimeError if option processing has already started.
+  #
+  def set_options(*arguments)
+    #
+    # The method is failed if option processing has already started.
+    #
+    if @status != STATUS_YET
+      raise RuntimeError,
+        "invoke set_options, but option processing has already started"
+    end
+
+    #
+    # Clear tables of option names and argument flags.
+    #
+    @canonical_names.clear
+    @argument_flags.clear
+
+    arguments.each do |arg|
+      if !arg.is_a?(Array)
+       raise ArgumentError, "the option list contains non-Array argument"
+      end
+
+      #
+      # Find an argument flag and it set to `argument_flag'.
+      #
+      argument_flag = nil
+      arg.each do |i|
+        if ARGUMENT_FLAGS.include?(i)
+          if argument_flag != nil
+            raise ArgumentError, "too many argument-flags"
+          end
+          argument_flag = i
+        end
+      end
+
+      raise ArgumentError, "no argument-flag" if argument_flag == nil
+
+      canonical_name = nil
+      arg.each do |i|
+        #
+        # Check an option name.
+        #
+        next if i == argument_flag
+        begin
+          if !i.is_a?(String) || i !~ /^-([^-]|-.+)$/
+            raise ArgumentError, "an invalid option `#{i}'"
+          end
+          if (@canonical_names.include?(i))
+            raise ArgumentError, "option redefined `#{i}'"
+          end
+        rescue
+          @canonical_names.clear
+          @argument_flags.clear
+          raise
+        end
+
+        #
+        # Register the option (`i') to the `@canonical_names' and
+        # `@canonical_names' Hashes.
+        #
+        if canonical_name == nil
+          canonical_name = i
+        end
+        @canonical_names[i] = canonical_name
+        @argument_flags[i] = argument_flag
+      end
+      raise ArgumentError, "no option name" if canonical_name == nil
+    end
+    return self
+  end
+
+  #
+  # Set/Unset `quiet' mode.
+  #
+  attr_writer :quiet
+
+  #
+  # Return the flag of `quiet' mode.
+  #
+  attr_reader :quiet
+
+  #
+  # `quiet?' is an alias of `quiet'.
+  #
+  alias quiet? quiet
+
+  #
+  # Explicitly terminate option processing.
+  #
+  def terminate
+    return nil if @status == STATUS_TERMINATED
+    raise RuntimeError, "an error has occurred" if @error != nil
+
+    @status = STATUS_TERMINATED
+    @non_option_arguments.reverse_each do |argument|
+      ARGV.unshift(argument)
+    end
+
+    @canonical_names = nil
+    @argument_flags = nil
+    @rest_singles = nil
+    @non_option_arguments = nil
+
+    return self
+  end
+
+  #
+  # Returns true if option processing has terminated, false otherwise.
+  #
+  def terminated?
+    return @status == STATUS_TERMINATED
+  end
+
+  #
+  # Set an error (a protected method).
+  #
+  def set_error(type, message)
+    $stderr.print("#{$0}: #{message}\n") if !@quiet
+
+    @error = type
+    @error_message = message
+    @canonical_names = nil
+    @argument_flags = nil
+    @rest_singles = nil
+    @non_option_arguments = nil
+
+    raise type, message
+  end
+  protected :set_error
+
+  #
+  # Examine whether an option processing is failed.
+  #
+  attr_reader :error
+
+  #
+  # `error?' is an alias of `error'.
+  #
+  alias error? error
+
+  # Return the appropriate error message in POSIX-defined format.
+  # If no error has occurred, returns nil.
+  #
+  def error_message
+    return @error_message
+  end
+
+  #
+  # Get next option name and its argument, as an Array of two elements.
+  #
+  # The option name is always converted to the first (preferred)
+  # name given in the original options to GetoptLong.new.
+  #
+  # Example: ['--option', 'value']
+  #
+  # Returns nil if the processing is complete (as determined by
+  # STATUS_TERMINATED).
+  #
+  def get
+    option_name, option_argument = nil, ''
+
+    #
+    # Check status.
+    #
+    return nil if @error != nil
+    case @status
+    when STATUS_YET
+      @status = STATUS_STARTED
+    when STATUS_TERMINATED
+      return nil
+    end
+
+    #
+    # Get next option argument.
+    #
+    if 0 < @rest_singles.length
+      argument = '-' + @rest_singles
+    elsif (ARGV.length == 0)
+      terminate
+      return nil
+    elsif @ordering == PERMUTE
+      while 0 < ARGV.length && ARGV[0] !~ /^-./
+        @non_option_arguments.push(ARGV.shift)
+      end
+      if ARGV.length == 0
+        terminate
+        return nil
+      end
+      argument = ARGV.shift
+    elsif @ordering == REQUIRE_ORDER
+      if (ARGV[0] !~ /^-./)
+        terminate
+        return nil
+      end
+      argument = ARGV.shift
+    else
+      argument = ARGV.shift
+    end
+
+    #
+    # Check the special argument `--'.
+    # `--' indicates the end of the option list.
+    #
+    if argument == '--' && @rest_singles.length == 0
+      terminate
+      return nil
+    end
+
+    #
+    # Check for long and short options.
+    #
+    if argument =~ /^(--[^=]+)/ && @rest_singles.length == 0
+      #
+      # This is a long style option, which start with `--'.
+      #
+      pattern = $1
+      if @canonical_names.include?(pattern)
+        option_name = pattern
+      else
+        #
+        # The option `option_name' is not registered in `@canonical_names'.
+        # It may be an abbreviated.
+        #
+        matches = []
+        @canonical_names.each_key do |key|
+          if key.index(pattern) == 0
+            option_name = key
+            matches << key
+          end
+        end
+        if 2 <= matches.length
+          set_error(AmbiguousOption, "option `#{argument}' is ambiguous between #{matches.join(', ')}")
+        elsif matches.length == 0
+          set_error(InvalidOption, "unrecognized option `#{argument}'")
+        end
+      end
+
+      #
+      # Check an argument to the option.
+      #
+      if @argument_flags[option_name] == REQUIRED_ARGUMENT
+        if argument =~ /=(.*)$/
+          option_argument = $1
+        elsif 0 < ARGV.length
+          option_argument = ARGV.shift
+        else
+          set_error(MissingArgument,
+                    "option `#{argument}' requires an argument")
+        end
+      elsif @argument_flags[option_name] == OPTIONAL_ARGUMENT
+        if argument =~ /=(.*)$/
+          option_argument = $1
+        elsif 0 < ARGV.length && ARGV[0] !~ /^-./
+          option_argument = ARGV.shift
+        else
+          option_argument = ''
+        end
+      elsif argument =~ /=(.*)$/
+        set_error(NeedlessArgument,
+                  "option `#{option_name}' doesn't allow an argument")
+      end
+
+    elsif argument =~ /^(-(.))(.*)/
+      #
+      # This is a short style option, which start with `-' (not `--').
+      # Short options may be catenated (e.g. `-l -g' is equivalent to
+      # `-lg').
+      #
+      option_name, ch, @rest_singles = $1, $2, $3
+
+      if @canonical_names.include?(option_name)
+        #
+        # The option `option_name' is found in `@canonical_names'.
+        # Check its argument.
+        #
+        if @argument_flags[option_name] == REQUIRED_ARGUMENT
+          if 0 < @rest_singles.length
+            option_argument = @rest_singles
+            @rest_singles = ''
+          elsif 0 < ARGV.length
+            option_argument = ARGV.shift
+          else
+            # 1003.2 specifies the format of this message.
+            set_error(MissingArgument, "option requires an argument -- #{ch}")
+          end
+        elsif @argument_flags[option_name] == OPTIONAL_ARGUMENT
+          if 0 < @rest_singles.length
+            option_argument = @rest_singles
+            @rest_singles = ''
+          elsif 0 < ARGV.length && ARGV[0] !~ /^-./
+            option_argument = ARGV.shift
+          else
+            option_argument = ''
+          end
+        end
+      else
+        #
+        # This is an invalid option.
+        # 1003.2 specifies the format of this message.
+        #
+        if ENV.include?('POSIXLY_CORRECT')
+          set_error(InvalidOption, "invalid option -- #{ch}")
+        else
+          set_error(InvalidOption, "invalid option -- #{ch}")
+        end
+      end
+    else
+      #
+      # This is a non-option argument.
+      # Only RETURN_IN_ORDER falled into here.
+      #
+      return '', argument
+    end
+
+    return @canonical_names[option_name], option_argument
+  end
+
+  #
+  # `get_option' is an alias of `get'.
+  #
+  alias get_option get
+
+  # Iterator version of `get'.
+  #
+  # The block is called repeatedly with two arguments:
+  # The first is the option name.
+  # The second is the argument which followed it (if any).
+  # Example: ('--opt', 'value')
+  #
+  # The option name is always converted to the first (preferred)
+  # name given in the original options to GetoptLong.new.
+  #
+  def each
+    loop do
+      option_name, option_argument = get_option
+      break if option_name == nil
+      yield option_name, option_argument
+    end
+  end
+
+  #
+  # `each_option' is an alias of `each'.
+  #
+  alias each_option each
+end