Re: feature request: view part of file

[Vitalie Spinu <spinuvit@gmail.com>]

  >> Sam Steingold <sds@gnu.org>
  >> on Thu, 14 Jun 2012 17:29:58 -0400 wrote:


  > I put vlf.el by Mathias into elpa. I rewrote it almost completely
  > (bzr still has the original version at revno 233). it works for me.

It doesn't work for me. vlf-next-batch pops:
   
   Debugger entered--Lisp error: (wrong-type-argument file-offset 2048.0)
     insert-file-contents("/home/vitoshka/test/foo.csv" nil 1024 2048.0)
     vlf-next-batch(nil)
     call-interactively(vlf-next-batch nil nil)


Would be nice to actually write the batch into a local file and put the
buffer into the appropriate mode. So if the file is csv I view it in
csv-mode. Then get a special command to write the contents into the
original file.

The dired integration could be improved by making it pop into vlf mode
whenever the file exceeds some user specified size.

    Vitalie


  > I wish I knew how to hook it into files.el, but I don't...

  > vlf.el has 2 issues:

  > 1. insert-file-contents hangs emacs (see `vlf-next-batch'):

  >     ;; replacing `erase-buffer' with replace arg to `insert-file-contents'
  >     ;; hangs emacs
  >     (unless append (erase-buffer))
  >     (insert-file-contents buffer-file-name nil vlf-end-pos end)

  > 2. I have this:

  >     (define-key map [C-+] 'vlf-change-batch-size)

  > When I do C-+ (by pressing Ctrl, Shift, and the "+=" key to the left of
  > backspace), I get "C-+ is undefined".
  > when I do M-x vlf-change-batch-size RET, I get
  > "You can run the command `vlf-change-batch-size' with <C-+>"
  > The "+" in both messages is the same character (43, #o53, #x2b).