Class: Opal::ERB::Compiler

Inherits:
Object show all
Defined in:
opal/lib/opal/erb.rb

Constant Summary

BLOCK_EXPR = 
/\s+(do|\{)(\s*\|[^|]*\|)?\s*\Z/

Instance Method Summary collapse

Instance Method Details

#compile(source, file_name = '(erb)') ⇒ Object 



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# File 'opal/lib/opal/erb.rb', line 10

def compile(source, file_name = '(erb)')
  @source, @file_name, @result = source, file_name, source

  self.fix_quotes
  self.find_contents
  self.find_code
  self.wrap_compiled

  Opal.compile @result
end

#find_code ⇒ Object 



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# File 'opal/lib/opal/erb.rb', line 39

def find_code
  @result = @result.gsub(/<%([\s\S]+?)%>/) do
    "\")\n#{ $1 }\noutput_buffer.append(\""
  end
end

#find_contents ⇒ Object 



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# File 'opal/lib/opal/erb.rb', line 27

def find_contents
  @result = @result.gsub(/<%=([\s\S]+?)%>/) do
    inner = $1.gsub(/\\'/, "'").gsub(/\\"/, '"')

    if inner =~ BLOCK_EXPR
      "\")\noutput_buffer.append= #{ inner }\noutput_buffer.append(\""
    else
      "\")\noutput_buffer.append=(#{ inner })\noutput_buffer.append(\""
    end
  end
end

#fix_quotes ⇒ Object 



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# File 'opal/lib/opal/erb.rb', line 21

def fix_quotes
  @result = @result.gsub '"', '\\"'
end

#wrap_compiled ⇒ Object 



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# File 'opal/lib/opal/erb.rb', line 45

def wrap_compiled
  @result = "Template.new('#@file_name') do |output_buffer|\noutput_buffer.append(\"#@result\")\noutput_buffer.join\nend\n"
end