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From: Matt Price <moptop99@gmail.com>
To: Org Mode <emacs-orgmode@gnu.org>
Subject: how the $@%& do you add a property to a plist?
Date: Sat, 18 Jul 2015 14:36:19 -0400	[thread overview]
Message-ID: <CAN_Dec890zUJA7QBCd_LGMJv3DU0hN_aS_1qBKfxdMbUcjdf+A@mail.gmail.com> (raw)

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Hi,

I am continuing to work on my marking stuff; it's working really well,
actually.

I am currently importing a list of student names and emails from a csv file
-- this is normally how I get the list of enrolled students.  I have
modified the defauly settings from our Universities CSV export so I get
these files in the form:

Student Name,Email
Student One, em.address@utoronto.ca
Student Two, em.address2@utoronto.ca

I then parse this into a list, each element of which is itself a list
("Student One" "em.address@utoronto.ca"), etc.

This is OK, but not very robust. I would like instead to set *properties*,
in case the CSV file has some other ordering of fields.  So I've tried this:

(defun parse-plist-csv-file (file)
  (interactive
   (list (read-file-name "CSV file: ")))
  (let ((buf (find-file-noselect file))
        (result nil))
    (with-current-buffer buf
      (goto-char (point-min))
      (let ((header (split-string  (buffer-substring-no-properties
                                    (line-beginning-position)
(line-end-position)) ","))
            )
        (while (not (eobp))
          (let ((line  (split-string (buffer-substring-no-properties
                                      (line-beginning-position)
(line-end-position))))
                (count 0)
                (new-plist '()))
            (while (< count (length line))
              (setq plist-new (plist-put new-plist  '(nth count header)
(nth count line)))
              (setq count (1+ count)))
            (push  new-plist result)
            (forward-line 1))))
      (reverse result))))

The line that's not working here is:

              (setq plist-new (plist-put new-plist  '(nth count header)
(nth count line)))

which just inserts nil nil into 'new-plist. Obviously I'm making some
elementary elsip mistake, but my elisp is too weak to figure it out.  Can
you guys help?  thanks,
Matt

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next             reply	other threads:[~2015-07-18 18:36 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-18 18:36 Matt Price [this message]
2015-07-18 20:01 ` how the $@%& do you add a property to a plist? Thomas S. Dye

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