WordPress/wp-admin/js/word-count.dev.js

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(function($) {
wpWordCount = {
settings : {
strip : /<[a-zA-Z\/][^<>]*>/g, // strip HTML tags
clean : /[0-9.(),;:!?%#$¿'"_+=\\/-]+/g, // regexp to remove punctuation, etc.
count : /\S\s+/g // counting regexp
},
block : 0,
wc : function(tx) {
var t = this, w = $('.word-count'), tc = 0;
if ( t.block )
return;
t.block = 1;
setTimeout( function() {
if ( tx ) {
tx = tx.replace( t.settings.strip, ' ' ).replace( /&nbsp;|&#160;/gi, ' ' );
tx = tx.replace( t.settings.clean, '' );
tx.replace( t.settings.count, function(){tc++;} );
}
w.html(tc.toString());
setTimeout( function() { t.block = 0; }, 2000 );
}, 1 );
}
}
$(document).bind( 'wpcountwords', function(e, txt) {
wpWordCount.wc(txt);
});
}(jQuery));