搜索高亮【jquery.textSearch-1.0.js】用法

// by zhangxixnu 2010-06-21  welcome to visit my personal website http://www.zhangxinxu.com/// textSearch.js v1.0 文字，关键字的页面纯客户端搜索// 2010-06-23 修复多字母检索标签破碎的问题// 2010-06-29 修复页面注释显示的问题// 2013-05-07 修复继续搜素关键字包含之前搜索关键字没有结果的问题// 不论何种情况，务必保留作者署名。 (function($){    $.fn.textSearch = function(str,options){        var defaults = {            divFlag: true,            divStr: " ",            markClass: "",            markColor: "red",            nullReport: true,            callback: function(){                return false;            }        };        var sets = $.extend({}, defaults, options || {}), clStr;        if(sets.markClass){            clStr = "class='"+sets.markClass+"'";        }else{            clStr = "style='color:"+sets.markColor+";'";        }        //对前一次高亮处理的文字还原        $("span[rel='mark']").each(function() {            var text = document.createTextNode($(this).text());            $(this).replaceWith($(text));        });        //字符串正则表达式关键字转化        $.regTrim = function(s){            var imp = /[\^\.\\\|\(\)\*\+\-\$\[\]\?]/g;            var imp_c = {};            imp_c["^"] = "\\^";            imp_c["."] = "\\.";            imp_c["\\"] = "\\\\";            imp_c["|"] = "\\|";            imp_c["("] = "\\(";            imp_c[")"] = "\\)";            imp_c["*"] = "\\*";            imp_c["+"] = "\\+";            imp_c["-"] = "\\-";            imp_c["$"] = "\$";            imp_c["["] = "\\[";            imp_c["]"] = "\\]";            imp_c["?"] = "\\?";            s = s.replace(imp,function(o){                return imp_c[o];            });            return s;        };        $(this).each(function(){            var t = $(this);            str = $.trim(str);            if(str === ""){                return false;            }else{                //将关键字push到数组之中                var arr = [];                if(sets.divFlag){                    arr = str.split(sets.divStr);                }else{                    arr.push(str);                }            }            var v_html = t.html();            //删除注释            v_html = v_html.replace(/<!--(?:.*)\-->/g,"");            //将HTML代码支离为HTML片段和文字片段，其中文字片段用于正则替换处理，而HTML片段置之不理            var tags = /[^<>]+|<(\/?)([A-Za-z]+)([^<>]*)>/g;            var a = v_html.match(tags), test = 0;            $.each(a, function(i, c){                if(!/<(?:.|\s)*?>/.test(c)){//非标签                    //开始执行替换                    $.each(arr,function(index, con){                        if(con === ""){return;}                        var reg = new RegExp($.regTrim(con), "g");                        if(reg.test(c)){                            //正则替换                            c = c.replace(reg,"♂"+con+"♀");                            test = 1;                        }                    });                    c = c.replace(/♂/g,"<mark "+clStr+">").replace(/♀/g,"</mark>");                    a[i] = c;                }            });            //将支离数组重新组成字符串            var new_html = a.join("");            $(this).html(new_html);            if(test === 0 && sets.nullReport){                return false;            }            //执行回调函数            sets.callback();        });    };

})(jQuery);