Class: YamlVault::KeyParser

Inherits:
Object
  • Object
show all
Defined in:
lib/yaml_vault/key_parser.rb

Defined Under Namespace

Classes: InvalidPathFormat

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.parse(str) ⇒ Object 



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# File 'lib/yaml_vault/key_parser.rb', line 7

def self.parse(str)
  new.parse(str)
end

Instance Method Details

#parse(str) ⇒ Object

Raises:



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# File 'lib/yaml_vault/key_parser.rb', line 11

def parse(str)
  s = StringScanner.new(str)
  path = []
  until s.eos?
    if token = s.scan(/'(.*?)'/)
      path << s[1]
    elsif token = s.scan(/"(.*?)"/)
      path << s[1]
    elsif token = s.scan(%r{/(.*?)/})
      path << Regexp.new(s[1])
    elsif token = s.scan(/\[(\d+)\]/)
      path << s[1].to_i
    elsif token = s.scan(/:([^\.]+)/)
      path << s[1].to_sym
    elsif token = s.scan(/\./)
      # noop
    elsif token = s.scan(/[^\.]*/)
      path << token
    end
  end

  raise InvalidPathFormat.new("`$` must be at first") unless path.first == "$"

  path
end