Class: JadeDeserializer

Inherits:
Object
  • Object
show all
Defined in:
jade/jade_deserializer.rb

Overview

The JadeDeserializer converts either a string or .jde file that is formatted correctly to a JadeObject. It does this by parsing the data and creating a series of JadePairs which are used as the arguments of the JadeObject.

Formatting (with pretty printing):

<variableOne>: ‘<valueOne>’;

<variableTwo>: ‘<valueTwo>’;

Formatting (without pretty printing):

<variableOne>: ‘<valueOne>’; <variableTwo>: ‘<valueTwo>’;

: -> Splits the variable and its value

; -> Denotes an end of line

‘ -> Surround the value of the variable

“ -> Can also surround the value of the variable

When parsing Jade ignores ALL whitespace, even in variables.

Author:

  • Joseph Beck

Instance Method Summary collapse

Instance Method Details

#from_file(dir) ⇒ JadeObject

The from_file method creates a JadeObject from a given file directory, as long as it able to be converted to JadeObject. It first reads in the file and then splits it into pairs with .split(‘;’). All new line are also removed at this point. The pairs are then parsed in another function.

Parameters:

  • (String)

Returns:



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# File 'jade/jade_deserializer.rb', line 56

def from_file(dir)
  file = File.open(dir)
  data = file.read.tr("\n", '').split(';')
  make_jade_object(data)
end

#from_str(jaded_str) ⇒ JadeObject

The from_str method creates a JadeObject from a given string, as long as it able to be converted to JadeObject. It splits it into pairs with .split(‘;’). All new lines are also removed at this point. The pairs are then parsed in another function.

Parameters:

  • (String)

Returns:



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# File 'jade/jade_deserializer.rb', line 43

def from_str(jaded_str)
  data = jaded_str.tr("\n", '').split(';')
  make_jade_object(data)
end

#make_jade_object(data) ⇒ JadeObject

The make_jade_object takes in a half-parsed array of strings and coverts these into JadePairs. It does this for every piece of data in the array. During this all whitespace is removed and it is split but : to get each pair. Each created pair is appended to the jade_pairs array. This array is later used as args for the new JadeObject which is returned.

Parameters:

  • (String[])

Returns:



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# File 'jade/jade_deserializer.rb', line 73

def make_jade_object(data)
  jade_pairs = []

  data.each do |piece|
    piece = piece.tr(' ', '').tr("'", '')
    first, second = piece.split(':')
    first = first.tr(' ', '').tr("\n", '')
    second = second.tr(' ', '').tr("\n", '')
    jade_pairs << JadePair.new(first, second)
  end
  JadeObject.new(jade_pairs)
end