Re: Context-sensitive word count in org mode (elisp)

[Christian Moe <mail@christianmoe.com>]

Forgot to add the code.

#+begin_src emacs-lisp
   ;; Adapted from code posted by Paul Sexton <2011-02-16 Wed 4:51am>
   ;; - Everything now contained in one function
   ;; - Will count correct number of words inside Latex macro

   (defun org-word-count (beg end)
   (interactive "r")
   (unless mark-active
     (setf beg (point-min)
	  end (point-max)))
   (let ((wc 0)
	(latex-macro-regexp "\\\\[A-Za-z]+\\(\\[[^]]*\\]\\| 
\\){\\([^}]*\\)}"))   ; CHANGED
     (save-excursion
       (goto-char beg)
       (while (< (point) end)
         (re-search-forward "\\w+\\W*")
         (cond
          ((or (org-in-commented-line) (org-at-table-p)) ; CHANGED
           nil)
          ((looking-at org-any-link-re)
           (goto-char (match-end 0)))
          ((save-excursion
             (backward-char)
             (looking-at latex-macro-regexp))
           (goto-char (match-beginning 2))  ; CHANGED
           (setf wc (+ 2 wc)))
          (t
           (incf wc)))))
     (message (format "%d words in %s." wc
                      (if mark-active "region" "buffer")))))
#+end_src

Yours,
Christian

On 2/16/11 4:51 AM, Paul Sexton wrote:
> I am trying to reduce the word count in a document I am writing. The
> existing word count functionality for emacs is surprisingly lacking.
> I wanted a word count function for org mode which excluded tables and
> comments, and ended up writing one myself.
>
> If this function is called with a region highlighted, it counts the words in
> the region. Otherwise it counts words in the whole buffer.
>
> It ignores commented lines and tables. LaTeX-style macros such as
> \foo{bar,baz} are counted as 1 word, as a compromise (more often than not
> they should count as 0, but they do sometimes expand to 1 or more words
> in the final document).
>
> Limitations:
> - Does not ignore BEGIN_SRC/END_SRC or inline src_* blocks (babel).
>    Should be easy enough to add however.
> - There is probably a better way of identifying latex macros
>    than my 'latex-macro-regexp' below.
> - Ignores all org links. I couldn't figure out how to extract "description"
>    text from links, but I didn't look very hard.
>
> Improvements welcome.
>
> Paul
>
> ------------------------------------------------------------------------
>
> (defun in-comment-p ()
>    "Return non-nil if point is in a comment."
>    (if (or (null comment-start-skip)
> 	  (eq (preceding-char) ?\r))
>        nil
>      (save-excursion
>        (let ((pos (point)))
> 	(re-search-backward "^\\|\r" nil t)
> 	(or (looking-at comment-start-skip)
> 	    (re-search-forward comment-start-skip pos t))))))
>
> (defun in-org-table-p ()
>    "Return non-nil if point is in an org-mode table."
>    (if (or (not (boundp 'org-table-any-line-regexp))
>            (null org-table-any-line-regexp)
> 	  (eq (preceding-char) ?\r))
>        nil
>      (save-excursion
>        (let ((pos (point)))
> 	(re-search-backward "^\\|\r" nil t)
> 	(looking-at org-table-any-line-regexp)))))
>
>
> (defvar latex-macro-regexp "\\\\[A-Za-z]+\\(\\[[^]]*\\]\\|\\){\\([^}]*\\)}")
>
>
> (defun org-word-count (beg end)
>    (interactive "r")
>    (unless mark-active
>      (setf beg (point-min)
>            end (point-max)))
>    (let ((wc 0))
>      (save-excursion
>        (goto-char beg)
>        (while (<  (point) end)
>          (re-search-forward "\\w+\\W*")
>          (cond
>           ((or (in-comment-p) (in-org-table-p))
>            nil)
>           ((looking-at org-any-link-re)
>            (goto-char (match-end 0)))
>           ((save-excursion
>              (backward-char)
>              (looking-at latex-macro-regexp))
>            (goto-char (match-end 0))
>            (setf wc (+ 2 wc)))
>           (t
>            (incf wc)))))
>      (message (format "%d words in %s." wc
>                       (if mark-active "region" "buffer")))))
>
>
>
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