Class: FixtureFox::Value

Inherits:
Token
  • Object
show all
Defined in:
lib/fixture_fox/token.rb

Instance Attribute Summary collapse

Attributes inherited from Token

#file, #initial_indent, #lineno, #litt, #pos, #value

Instance Method Summary collapse

Methods inherited from Token

#==, #error

Constructor Details

#initialize(file, lineno, initial_indent, pos, litt) ⇒ Value

Returns a new instance of Value.



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# File 'lib/fixture_fox/token.rb', line 59

def initialize(file, lineno, initial_indent, pos, litt)
  super

  i = 1
  case litt
    when /^(nil)/, /^(null)/
      i += $1.size
      @klass = NilClass
      @value = nil

    when /^(true)/, /^(false)/
      i += $1.size
      @klass = TrueClass
      @value = ($1 == "true")

    when /^([-+]?\d+\.\d+)/
      i += $1.size
      @klass = Float
      @value = $1.to_f

    when /^([-+]?\d+)/
      i += $1.size
      @klass = Integer
      @value = $1.to_i

    when /^"/
      @value = ""
      @klass = String
      loop do
        i < litt.size or self.error("Unterminated string")
        if litt[i] == "\\"
          if litt[i+1] == "\\"
            @value += "\\"
            i += 2
          elsif litt[i+1] == '"'
            @value += '"'
            i += 2
          elsif litt[i+1] == 'n'
            @value += "\n"
            i += 2
          elsif litt[i+1] == 't'
            @value += "\t"
            i += 2
          else
            @value += "\\"
            i += 1
          end
        elsif litt[i] == '"'
          i += 1
          break
        else
          @value += litt[i]
          i += 1
        end
      end

    when /^'/
      @value = ""
      @klass = String
      loop do
        i < litt.size or self.error("Unterminated string")
        if litt[i] == "'"
          if litt[i+1] == "'"
            @value += "'"
            i += 2
          else
            i += 1
            break
          end
        else
          @value += litt[i]
          i += 1
        end
      end

    # Inline arrays are split on ',' and on blanks. '\' is the escape
    # character
    #
    # FIXME: Quotes doesn't override separator. Eg. this throws an
    # exception: ['hello world']
    when /^(\[\s*)(.*)\]$/
      i += $1.size
      elements = $2
      matches = elements.split(/(\s*(?<!(?<!\\{2})\\)[, ]\s*)/)

      @value = []
      while element = matches.shift
        unescaped_element = element.gsub(/\\/, "")
        @value << Value.new(file, lineno, initial_indent, i, unescaped_element).value
        i += element.size + (matches.shift&.size || 0)
      end
      @klass = Array

    when /^\{/
      i += litt.size
      @value = HashParser.parse(litt)
      @klass = Hash

    else
      i += litt.size
      @klass = String
      @value = litt.dup
  end

  (litt[i..-1] || "") =~ /^\s*(?:#.*)?$/ or self.error("Illegal characters after literal")
end

Instance Attribute Details

#klass ⇒ Object (readonly)

NilClass, TrueClass, Integer, Float, String, Array



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# File 'lib/fixture_fox/token.rb', line 57

def klass
  @klass
end

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/fixture_fox/token.rb', line 166

def to_s()
  if klass == NilClass
    "null"
#     elsif klass == String
#       "'#{value.gsub("'", "''")}'"
  else
    value.to_s
  end
end