class Hurley::Header

# File lib/hurley/header.rb, line 63
def self.add_canonical_key(*canonicals)
  canonicals.each do |canonical|
    canonical.freeze
    KEYS[canonical] = canonical
    shortcut = canonical.downcase
    KEYS[shortcut.freeze] = canonical
    KEYS[shortcut.tr(DASH, UNDERSCORE).to_sym] = canonical
  end
end

# File lib/hurley/header.rb, line 54
def self.canonical(input)
  KEYS[input] || begin
    key = input.to_s.tr(UNDERSCORE, DASH)
    key.downcase!
    key.gsub!(/(\A|\-)(\S)/) { |s| s.upcase! ; s }
    key
  end
end

# File lib/hurley/header.rb, line 5
def initialize(initial = nil)
  @hash = {}
  update(initial) if initial
end

# File lib/hurley/header.rb, line 17
def [](key)
  @hash[self.class.canonical(key)]
end

# File lib/hurley/header.rb, line 21
def []=(key, value)
  @hash[self.class.canonical(key)] = value.to_s
end

# File lib/hurley/header.rb, line 29
def delete(key)
  @hash.delete(self.class.canonical(key))
end

# File lib/hurley/header.rb, line 39
def dup
  self.class.new(@hash.dup)
end

# File lib/hurley/header.rb, line 47
def inspect
  "#<%s %s>" % [
    self.class.name,
    @hash.inspect,
  ]
end

# File lib/hurley/header.rb, line 25
def key?(key)
  @hash.key?(self.class.canonical(key))
end

# File lib/hurley/header.rb, line 43
def to_hash
  @hash
end

# File lib/hurley/header.rb, line 33
def update(hash)
  hash.each do |key, value|
    self[key] = value
  end
end