Class: Treetop::Compiler::GrammarCompiler

Inherits:
Object
  • Object
show all
Defined in:
lib/precedent/treetop_patch.rb

Instance Method Summary collapse

Instance Method Details

#compile(source_path, target_path = source_path.gsub(/\.(treetop|tt)\Z/, '.rb')) ⇒ Object 



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# File 'lib/precedent/treetop_patch.rb', line 6

def compile(source_path, target_path = source_path.gsub(/\.(treetop|tt)\Z/, '.rb'))
  File.open(target_path, 'w') do |target_file|
    generated_source = ruby_source(source_path)
    first_line_break = generated_source.index("\n")
    first_line = generated_source.slice(0..first_line_break)
    if /(coding|encoding): (\S+)/.match(first_line)
      target_file.write(first_line)
      target_file.write(AUTOGENERATED+"\n\n")
      target_file.write(generated_source.slice((first_line_break + 1)..-1))
    else
      target_file.write(AUTOGENERATED+"\n\n")
      target_file.write(generated_source)
    end
  end
end