triction
          (noweb-update-chunk-vector)
          (noweb-narrow-to-chunk)
          (newline-and-indent))
        (newline-and-indent)))

  (defun my-tab-key () 
    "Tab that always tabs in Fundamental mode" (interactive)
    (if (string= "Fundamental" mode-name)
        (insert "\t")
      (if (and (boundp 'noweb-mode) noweb-mode)
          (save-restriction
            (noweb-update-chunk-vector)
            (noweb-narrow-to-chunk)
            (indent-for-tab-command))
        (indent-for-tab-comm