Wordcount Mode

This is a minor mode to provide a ‘wc’ function for Emacs buffers as well as a modeline addition with live word, line and character counts.

Additionally, a user can set specific goals for adding or deleting words. These goals were partly inspired by 750words.com where the goal of the site is to encourage writing by setting a goal of 750 words at a time. I wanted the same functionality in Emacs.

Installation

Obtain the package from Github

git clone git://github.com/bnbeckwith/wc-mode.git

Then, add to your Emacs setup.

;; Add the path to the repo
(add-to-list 'load-path "/path/to/wc-mode/")
(require 'wc-mode)
;; Suggested setting
(global-set-key "\C-cw" 'wc-mode)

The code above sets up the minor mode and then assigns a global key to toggle the mode on and off.

Customization

There are a few settings that may be customized to provide better functionality for you.

Modline string

The default string displayed in the mode line can be changed to suit your needs. It can be defined through the variable customizaton interface.

The setting itself is simply a string with a few special characters to represent the available statistics. These character strings are listed in the follow table.

Format String	Meaning
%C	Original character count
%W	Original word count
%L	Original line count
%c	Change (delta) in characters
%w	Change (delta) in words
%l	change (delta) in lines
%gc	Character change goal
%gw	Word change goal
%gl	Line change goal
%tc	Total number of characters
%tw	Total number of words
%tl	Total number of lines

Counting functions

The default character, word and line counting functions may not produce the desired results. They can be overridden on a per-buffer basis by supplying new functions to the appropiate variables.

These functions must take RSTART and REND arguments representing the start and end points of the region on which to perform the count.

For example, if you had a CSV file and wanted each entry to count as a word, you would override the default behavior as follows.

;; Override the counting of words to count commas (fields)
(setq wc-count-words-function
   (function (lambda (rstart rend)
     (how-many "[^,\\n]+" rstart rend))))