docs: function PygmentizeOptions (options) {
    if(!(this instanceof PygmentizeOptions))
      return new PygmentizeOptions(options);
  
    if(options.lexer && validate.lexer.test(options.lexer))
      this.lexer = options.lexer;
  
    if(options.guess && !this.lexer)
      this.guess = true;
  
    if(options.formatter && validate.formatter.test(options.formatter))
      this.formatter = options.formatter;
    else
      this.formatter = 'html'
  
  }