class BinData::Registry

Names are stored in under_score_style, not camelCase.
#lookup(“my_type”, { search_prefix: :ns }) will return NsMyType.
#lookup(“int32”, { endian: :big }) will return Int32Be.
There are two hints supported, :endian and :search_prefix.
with hints.
Classes can be looked up based on their full name or an abbreviated name
part of their name (e.g. int32be, float_le).
Numerics (integers and floating point numbers) have an endian property as
This registry contains a register of name -> class mappings.

def initialize

def initialize
  @registry = {}
end

def is_registered?(name)

def is_registered?(name)
  register_dynamic_class(name) unless @registry.has_key?(name)
  @registry.has_key?(name)
end

def lookup(name, hints = {})

def lookup(name, hints = {})
  key = normalize_name(name, hints)
  @registry[key] || raise(UnRegisteredTypeError, name.to_s)
end

def name_with_endian(name, endian)

def name_with_endian(name, endian)
  return name if endian.nil?
  suffix = (endian == :little) ? "le" : "be"
  if /^u?int\d+$/ =~ name
    name + suffix
  else
    name + "_" + suffix
  end
end

def name_with_prefix(name, prefix)

def name_with_prefix(name, prefix)
  prefix = prefix.to_s.chomp("_")
  if prefix == ""
    name
  else
    "#{prefix}_#{name}"
  end
end

def normalize_name(name, hints)

def normalize_name(name, hints)
  name = underscore_name(name)
  if not is_registered?(name)
    search_prefix = [""].concat(Array(hints[:search_prefix]))
    search_prefix.each do |prefix|
      n = name_with_endian(name_with_prefix(name, prefix), hints[:endian])
      if is_registered?(n)
        name = n
        break
      end
    end
  end
  name
end

def register(name, class_to_register)

def register(name, class_to_register)
  return if class_to_register.nil?
  formatted_name = underscore_name(name)
  warn_if_name_is_already_registered(formatted_name, class_to_register)
  @registry[formatted_name] = class_to_register
end

def register_dynamic_class(name)

def register_dynamic_class(name)
  if /^u?int\d+(le|be)$/ =~ name or /^s?bit\d+(le)?$/ =~ name
    class_name = name.gsub(/(?:^|_)(.)/) { $1.upcase }
    begin
      BinData::const_get(class_name)
    rescue NameError
    end
  end
end

def underscore_name(name)

Convert CamelCase +name+ to underscore style.

def underscore_name(name)
  name.to_s.sub(/.*::/, "").
            gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
            gsub(/([a-z\d])([A-Z])/,'\1_\2').
            tr("-", "_").
            downcase
end

def unregister(name)

def unregister(name)
  @registry.delete(underscore_name(name))
end

def warn_if_name_is_already_registered(name, class_to_register)

def warn_if_name_is_already_registered(name, class_to_register)
  prev_class = @registry[name]
  if $VERBOSE and prev_class and prev_class != class_to_register
    warn "warning: replacing registered class #{prev_class} " +
         "with #{class_to_register}"
  end
end

Modules

Classes