Class: SciRuby::Plotter::Interpreter

Inherits:
Object
  • Object
show all
Defined in:
lib/sciruby/plotter.rb

Overview

A simple REPL without the P. Based roughly on IRB. Look on Wikipedia if you’re not sure what a REPL is.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename, script = nil) ⇒ Interpreter

Returns a new instance of Interpreter.



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# File 'lib/sciruby/plotter.rb', line 70

def initialize filename, script = nil
  @filename = filename
  @bind     = binding
  @script = script.nil? ? File.new(filename, "r") : StringIO.new(script)
  @script.define_singleton_method(:encoding, lambda { external_encoding }) unless @script.respond_to?(:encoding)

  @scanner  = ::RubyLex.new
  @scanner.set_input @script
end

Instance Attribute Details

#bind ⇒ Object (readonly)

Returns the value of attribute bind.



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# File 'lib/sciruby/plotter.rb', line 80

def bind
  @bind
end

#filename ⇒ Object (readonly)

Returns the value of attribute filename.



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# File 'lib/sciruby/plotter.rb', line 80

def filename
  @filename
end

Instance Method Details

#eval_script ⇒ Object 



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# File 'lib/sciruby/plotter.rb', line 82

def eval_script
  vis = nil
  @scanner.each_top_level_statement do |line, line_number|
    line.untaint
    vis = eval(line, bind, filename, line_number)
  end
  vis = eval("vis", bind, __FILE__, __LINE__) unless vis.is_a?(::Rubyvis::Panel)
  vis.render()

  vis
end