Class: Mayl::Repl

Inherits:
Object
  • Object
show all
Defined in:
lib/mayl/repl.rb

Overview

Public: The class responsible for reading user input, interpreting it and executing associated commands.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ Repl

Public: Initializes a new REPL from a given path.

path - The path to get the locales from (defaults to ‘config/locales’).



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# File 'lib/mayl/repl.rb', line 10

def initialize(path)
  path    ||= 'config/locales'
  @env    = Env.new(path)
  @parser = Parser.new(@env)
end

Instance Attribute Details

#parser ⇒ Object (readonly)

Returns the value of attribute parser.



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# File 'lib/mayl/repl.rb', line 5

def parser
  @parser
end

Instance Method Details

#start ⇒ Object

Public: Fires up the REPL that parses and executes given commands.

Returns nothing.



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# File 'lib/mayl/repl.rb', line 19

def start
  locales = @env.locales.map(&:name)
  prompt = "> "
  puts "Detected locales: #{locales.join(', ')}"
  while (print prompt; input = $stdin.gets)
    begin
      value = @parser.parse(input.chomp).execute
      @env.last_value = value
      @env.commit
      prompt = [@env.namespace, '> '].reject(&:empty?).join ' '
    rescue => e
      print "Error: #{e.message}"
    ensure
      print "\n"
    end
  end
end