code: function InlineLexer (options) {
    this.tokens = []
    this.options = options || defaults
    this.rules = inline
    if (this.options.gfm) {
      Object.assign(this.rules, inline.opts.gfm)
    }
    if (this.options.breaks) {
      Object.assign(this.rules, inline.opts.gfm, inline.opts.breaks)
    }
  }
docs: Inline Lexer
  @constructor