class SimpleVersion

# File lib/simple_version.rb, line 5
def initialize(major, minor, micro)
  @major = to_integer(major)
  @minor = to_integer(minor)
  @micro = to_integer(micro)
end

# File lib/simple_version.rb, line 11
def SimpleVersion.parse(version_string)
  if version_string.to_s.strip == ""
    raise "version_string cannot be blank"
  end
  pieces = version_string.split(".", 3)
  if pieces.size != 3
    raise "version must have 3 pieces"
  end
  SimpleVersion.new(pieces[0], pieces[1], pieces[2])
end

# File lib/simple_version.rb, line 38
def <=>(other)
  value = major <=> other.major
  if value == 0
    value = minor <=> other.minor
    if value == 0
      value = micro <=> other.micro
    end
  end
  value
end

# File lib/simple_version.rb, line 22
def next_major
  SimpleVersion.new(major+1, 0, 0)
end

# File lib/simple_version.rb, line 30
def next_micro
  SimpleVersion.new(major, minor, micro+1)
end

# File lib/simple_version.rb, line 26
def next_minor
  SimpleVersion.new(major, minor+1, 0)
end

# File lib/simple_version.rb, line 34
def to_s
  "%s.%s.%s" % [major, minor, micro]
end

# File lib/simple_version.rb, line 50
def to_integer(value)
  if value.to_s.match(/^\d+$/)
    value.to_i
  else
    raise "Value[%s] is not an integer" % value
  end
end