Method: JSI::Ptr.from_pointer

Defined in:
lib/jsi/ptr.rb

.from_pointer(pointer_string) ⇒ JSI::Ptr

parse a pointer string and instantiate as a JSI::Ptr

JSI::Ptr.from_pointer('/foo')
=> JSI::Ptr["foo"]

JSI::Ptr.from_pointer('/foo~0bar/baz~1qux')
=> JSI::Ptr["foo~bar", "baz/qux"]

Parameters:

  • pointer_string (String) —

    a pointer string

Returns:

Raises:



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# File 'lib/jsi/ptr.rb', line 88

def self.from_pointer(pointer_string)
  pointer_string = pointer_string.to_str
  if pointer_string[0] == ?/
    tokens = pointer_string.split('/', -1).map! do |piece|
      piece.gsub!('~1', '/')
      piece.gsub!('~0', '~')
      piece.freeze
    end
    tokens.shift
    new(tokens.freeze)
  elsif pointer_string.empty?
    EMPTY
  else
    raise(PointerSyntaxError, "Invalid pointer syntax in #{pointer_string.inspect}: pointer must begin with /")
  end
end