Class: QED::Script

Inherits:
Object
  • Object
show all
Defined in:
lib/qed/script.rb

Overview

Script

When run current working directory is changed to that of the demonstration script’s. So any relative file references within a demo must take that into account.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file, scope = nil) ⇒ Script

New Script



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# File 'lib/qed/script.rb', line 31

def initialize(file, scope=nil)
  @file     = file
  @scope    = scope || Scope.new
  apply_environment
end

Instance Attribute Details

#dir ⇒ Object (readonly)

Expanded dirname of file.



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# File 'lib/qed/script.rb', line 25

def dir
  @dir
end

#file ⇒ Object (readonly)

Demonstration file.



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# File 'lib/qed/script.rb', line 22

def file
  @file
end

#scope ⇒ Object (readonly)

Returns the value of attribute scope.



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# File 'lib/qed/script.rb', line 28

def scope
  @scope
end

Instance Method Details

#advice ⇒ Object 



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# File 'lib/qed/script.rb', line 43

def advice
  @scope.__advice__
end

#apply_environment ⇒ Object 



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# File 'lib/qed/script.rb', line 113

def apply_environment
  environment.each do |file|
    case File.extname(file)
    when '.rb'
      eval(File.read(file), scope.__binding__, file)
    else
      Script.new(file, scope).run
    end
  end
end

#binding ⇒ Object

One binding per script.



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# File 'lib/qed/script.rb', line 38

def binding
  @binding ||= @scope.__binding__
end

#document ⇒ Object

Nokogiri HTML document.



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# File 'lib/qed/script.rb', line 58

def document
  @document ||= Nokogiri::HTML(to_html)
end

#environment ⇒ Object 



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# File 'lib/qed/script.rb', line 107

def environment
  glob = File.join(dir, '{environment,common,shared}', '*')
  Dir[glob]
end

#html ⇒ Object

Open, convert to HTML and cache.



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# File 'lib/qed/script.rb', line 83

def html
  @html ||= to_html
end

#name ⇒ Object

File basename less extension.



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# File 'lib/qed/script.rb', line 53

def name
  @name ||= File.basename(file).chomp(File.extname(file))
end

#root ⇒ Object

Root node of the html document.



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# File 'lib/qed/script.rb', line 63

def root
  document.root
end

#run(*observers) ⇒ Object 



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# File 'lib/qed/script.rb', line 101

def run(*observers)
  evaluator = Evaluator.new(self, *observers)
  evaluator.run
end

#to_html ⇒ Object

Open file and translate template into HTML text.



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# File 'lib/qed/script.rb', line 68

def to_html
  #case file
  #when /^http/
  #  ext  = File.extname(file).sub('.','')
  #  Tilt[ext].new{ source }
  #else
  #end
  if File.extname(file) == '.html'
    File.read(file)
  else
    Tilt.new(file).render
  end
end