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From: TheFlyingDutchman <zzbbaadd@aol.com>
To: help-gnu-emacs@gnu.org
Subject: Re: how to get list of vectors with value from file content...
Date: Thu, 2 Sep 2010 07:31:38 -0700 (PDT)	[thread overview]
Message-ID: <eebab69e-fdb6-4d2c-9da1-45c18f3eeae9@u4g2000prn.googlegroups.com> (raw)
In-Reply-To: 2f5c2c80-a5da-4dfd-8102-44aca66b20e2@p37g2000pra.googlegroups.com

On Sep 2, 6:29 am, TheFlyingDutchman <zzbba...@aol.com> wrote:
> > (1) here's how i get the file content for each file:
>
> >   (find-file "findreplace_01_A.txt" ) (setq findreplace_01_A (buffer-
> > string)) (kill-buffer )
> >   (find-file "findreplace_01_B.txt" ) (setq findreplace_01_B (buffer-
> > string)) (kill-buffer )
> >   (find-file "findreplace_02_A.txt" ) (setq findreplace_02_A (buffer-
> > string)) (kill-buffer )
> >   (find-file "findreplace_02_B.txt" ) (setq findreplace_02_B (buffer-
> > string)) (kill-buffer )
> >   (find-file "findreplace_03_A.txt" ) (setq findreplace_03_A (buffer-
> > string)) (kill-buffer )
> >   (find-file "findreplace_03_B.txt" ) (setq findreplace_03_B (buffer-
> > string)) (kill-buffer )
>
> > seems a kludge to me. Is there a better way?
>
> With find-file, if the file doesn't exist (in this case it should)
> there is no error. This way generates an error if a file is missing:
>
>   (setq findreplace_01_A
>       (with-temp-buffer
>          (insert-file-contents "findreplace_01_A.txt")
>          (buffer-string)
>                 ))

A function can be created to get a file string:

(defun get-file-string (fileName)
  (let ( fileString )
  (setq fileString
      (with-temp-buffer
         (insert-file-contents fileName)
         (buffer-string)))))

allowing:

  (setq findreplace_01_A
      (get-file-string "findreplace_01_A.txt"))


and a loop can be used with the function:

(progn
  (defvar findReplacePairsList nil
 "A list of replacement pairs. Each element is a vector of 2 elements.
Each element is a string, from a file content.")


(let (
      ( fileNames (vector "findreplace_01_A.txt"
                                     "findreplace_01_B.txt"
                                     "findreplace_02_A.txt"
                                     "findreplace_02_B.txt"
                                     "findreplace_03_A.txt"
                                     "findreplace_03_B.txt"))
        (fileStrings (make-vector 6
""))
        (i 0 ) )
  (while (< i 6)
    (aset fileStrings i
        (get-file-string (elt fileNames i)))
        (setq i (1+ i) ) )

  (setq findReplacePairsList (list
                              (vector (elt fileStrings 0)
                                      (elt fileStrings 1))
                              (vector (elt fileStrings 2)
                                      (elt fileStrings 3))
                              (vector (elt fileStrings 4)
                                      (elt fileStrings 5))
                              ))))



  reply	other threads:[~2010-09-02 14:31 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-02 10:16 how to get list of vectors with value from file content Xah Lee
2010-09-02 11:15 ` Marc Mientki
2010-09-02 21:15   ` Xah Lee
2010-09-02 12:42 ` TheFlyingDutchman
2010-09-02 13:00 ` TheFlyingDutchman
2010-09-02 13:29 ` TheFlyingDutchman
2010-09-02 14:31   ` TheFlyingDutchman [this message]
2010-09-02 21:02     ` Xah Lee

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