Wordpress/wp-admin/js/word-count.js

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// Word count
(function(JQ) {
wpWordCount = {
init : function() {
var t = this, last = 0, co = JQ('#content');
JQ('#wp-word-count').html( wordCountL10n.count.replace( /%d/, '<span id="word-count">0</span>' ) );
t.block = 0;
t.wc(co.val());
co.keyup( function(e) {
if ( e.keyCode == last ) return true;
if ( 13 == e.keyCode || 8 == last || 46 == last ) t.wc(co.val());
last = e.keyCode;
return true;
});
},
wc : function(tx) {
var t = this, w = JQ('#word-count'), tc = 0;
if ( t.block ) return;
t.block = 1;
tx = tx.replace( /^\s*|\s*$/g, '' );
setTimeout( function() {
if ( tx ) {
tx = tx.replace( /<.[^<>]*?>/g, ' ' ).replace( /&nbsp;/gi, ' ' );
tx = tx.replace( /[0-9.(),;:!?%#$¿'"_+=\\/-]*/g, '' );
tx.replace( /\S\s+/g, function(){tc++;} );
}
w.html(tc.toString());
setTimeout( function() { t.block = 0; }, 2000 );
}, 1 );
}
}
}(jQuery));
jQuery(document).ready( function(){ wpWordCount.init(); } );