求一个正则搜索的扩展

风间星魂：vimperator 强大不用解释回到原帖

javascript:(function(){var%20count=0,%20text,%20regexp;text=prompt(%22Search%20regexp:%22,%20%22%22);if(text==null%20||%20text.length==0)return;try{regexp=new%20RegExp(%22(%22%20+%20text%20+%22)%22,%20%22i%22);}catch(er){alert(%22Unable%20to%20create%20regular%20expression%20using%20text%20'%22+text+%22'.\n\n%22+er);return;}function%20searchWithinNode(node,%20re){var%20pos,%20skip,%20spannode,%20middlebit,%20endbit,%20middleclone;skip=0;if(%20node.nodeType==3%20){pos=node.data.search(re);if(pos>=0){spannode=document.createElement(%22SPAN%22);spannode.style.backgroundColor=%22yellow%22;middlebit=node.splitText(pos);endbit=middlebit.splitText(RegExp.$1.length);middleclone=middlebit.cloneNode(true);spannode.appendChild(middleclone);middlebit.parentNode.replaceChild(spannode,middlebit);++count;skip=1;}}else%20if(%20node.nodeType==1%20&&%20node.childNodes%20&&%20node.tagName.toUpperCase()!=%22SCRIPT%22%20&&%20node.tagName.toUpperCase!=%22STYLE%22){for%20(var%20child=0;%20child%20<%20node.childNodes.length;%20++child){child=child+searchWithinNode(node.childNodes[child],%20re);}}return%20skip;}window.status=%22Searching%20for%20%22+regexp+%22...%22;searchWithinNode(document.body,%20regexp);window.status=%22Found%20%22+count+%22%20match%22+(count==1?%22%22:%22es%22)+%22%20for%20%22+regexp+%22.%22;})();