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re-search-forward always finds the same link


From: Christoph Conrad
Subject: re-search-forward always finds the same link
Date: Thu, 09 Feb 2006 09:18:53 +0100

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

I have written the following function. It fetches a page from the web.
In that page are links to archive pages, which should also be fetched,
and appended to the buffer. The problem: re-search-forward always
matches the same archive link, as if it would be start again from
beginning-of-buffer.

(defun advaita-all()
  (interactive)
  (with-temp-buffer
    ;; get base page
    (shell-command
     "lynx -dump http://advaitavedantameditations.blogspot.com/";
     (current-buffer))

    (let ((eob (save-excursion (end-of-buffer) (point))))
      ;; append to base page all archive pages that are referenced in
      ;; the base page
      (while (re-search-forward " \\(http://.*_archive.html$\\)" eob t)
        (let ((link (match-string 1)))
          (save-excursion
            (message (concat "Processing link: " link))
            (end-of-buffer)
            (shell-command (concat "lynx -dump " link) (current-buffer)))))

      (write-region (point-min) (point-max) "~/Privat/advaita-all.txt"))))


Changing the two lines

 ;; (end-of-buffer)
 ;; (shell-command (concat "lynx -dump " link) (current-buffer)))))
 (goto-char (point-max))
 (insert (shell-command-to-string (concat "lynx -dump " link))))))

and it works.


In GNU Emacs 22.0.50.1 (i686-pc-linux-gnu)
 of 2006-02-05 on brabbelbox
X server distributor `The X.Org Foundation', version 11.0.60802000
configured using `configure  'CC=gcc''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: address@hidden
  locale-coding-system: iso-8859-15
  default-enable-multibyte-characters: t

Major mode: Default-Major

Minor modes in effect:
  partial-completion-mode: t
  recentf-mode: t
  minibuffer-electric-default-mode: t
  auto-image-file-mode: t
  erc-autojoin-mode: t
  erc-button-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-fill-mode: t
  erc-netsplit-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  global-cwarn-mode: t
  outline-minor-mode: t
  delete-selection-mode: t
  pc-selection-mode: t
  show-paren-mode: t
  icomplete-mode: t
  tooltip-mode: t
  auto-compression-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-decoding-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t




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