Corrector de caracteres no deseados

typor.js

(function($){
  $.fn.corrector = function(options) {

    var defaults = {
        'withespace': ' ',
        'doublespace': '  ',
    };
    var options =   $.extend(defaults, options);

    return this.each(function(){
        $(this).keypress(function() {
            var obj = this;
            setTimeout(function() {
                var text = obj.value;
                var selStart = obj.selectionStart;
                /*
                (\W|\s)\1+ = encuentra dos repetidos iguales, falla para ` ; `
                \s+?['";:,.\/?\\-] = encuentra ` ; ` pero no `;;`
                */
                re = /\s+?['";:,.\/?\\-]|(\W|\s)\1+/g;
                var newText = text.replace(re, function(match, index) {
                    if (index < selStart) {
                        selStart -= (match.length - 1);  // correct the selection location
                    }
                    return(match.substr(0,1));
                    });
                if (newText != text) {
                    obj.value = newText;
                    obj.selectionStart = obj.selectionEnd = selStart;
                    }
                }, 1);
            })

        });
    }
})($);
$('document').ready(function(){
    $('textarea').corrector()
})