Adding a Word/Charcounter to the Editform

Adding the following JavaScript code to your conf/userscript.js (if it does not exist, just create it) will add an automatic word and character counter at the top right of the edit textarea. The count is updated on each keyup event and will show word and character counts of the currently edited section and the whole page.

conf/userscript.js

/**
 * Script to add a wordcounter on the edit form
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 * @author Lars Flintzak
 * @license GPL 2
 */
 
var wordcounter_timeout;
 
function wordcounter(text){
    var list = text.split(/[^\w\-_]+/);
    var len  = list.length;
    if(list[len-1] == '') len--;
    if(list[0] == '') len--;
    if(len < 0) len=0;
    return len;
}
 
function charcounter(text){
    var list = text.split(/[^\w\-_]+/);
    var len  = text.length;
    if(list[len-1] == '') len--;
    if(list[0] == '') len--;
    if(len < 0) len=0;
    return len;
}
 
addInitEvent(function(){
    var form = $('dw__editform');
    if(!form) return;
    var div = document.createElement('div');
    div.id = 'word__counter__output';
    div.style.position = 'absolute';
    div.style.width    = '80px';
    div.style.right = '50px';
    div.style.top   = (findPosY(form.elements.wikitext)+10)+'px';
    div.style.color = '#0a0';
 
    form.appendChild(div);
    var all = wordcounter(form.elements.prefix.value);
        all += wordcounter(form.elements.suffix.value);
 
    var zei_all = charcounter(form.elements.prefix.value);
        zei_all += charcounter(form.elements.suffix.value);
 
    addEvent(form.elements.wikitext,'keyup',function(){
        if(wordcounter_timeout) window.clearTimeout(wordcounter_timeout);
        wordcounter_timeout = window.setTimeout(function(){
            var len = wordcounter(form.elements.wikitext.value);
            var zei = charcounter(form.elements.wikitext.value);
            div.innerHTML =
                'Section: <br />'+
                '&nbsp;&nbsp;'+zei+' chars<br />'+
                '&nbsp;&nbsp;'+len+' words<br />'+
                'Total: <br />'+
                '&nbsp;&nbsp;'+(zei_all+zei)+' chars<br />'+
                '&nbsp;&nbsp;'+(all+len)+' words';
        },1000);
        return true;
    });
});

Can this be turned into a plugin that generates statistics on the number of words in the entire DokuWiki environment? I would like a feature similar to Microsoft Word's Word Counter tool so I can have some measurement of my progress. –Steven Vance