哪些自己曾经害怕的正则表达式以及一个万能的校验

var strSrc = "xxa1b01c001yya2b02c002zz";

var re = /a(\d)b(\d{2})c(\d{3})/gi;

//获得匹配的字符串数组

function getMatchString(strSrc, re) {

var array;

array = strSrc.match(re);

for ( var int = 0, j = array.length; int < j; int++) {

var array_element = array[int];

if (int < j - 1)

document.write("[\"" + array[int] + "\",");

else

document.write("\"" + array[int] + "\"]");

}

}

var str ="我.. ..我 ...要... 要学编程";

//去除啰嗦

function removeToomuchWord(str)

{

var str2= str.replace(/\./g,"").replace(/\s/g,"").replace(/(.)\1/g,"$1");

document.writeln(str2);

}

var str = "win a window";

//替换 window win a book 替换win 为 lost 结果为 window lost a book

function replace(str)

{

document.write(str.replace(/\bwin\b/g,"lose"));

}

var str = "http://www.baidu.com:8080/0912.html";

//获得url的各部分信息

function getUrlPartInfo(str)

{

var reg =/^(\w+):\/\/([^:/]*)(?::(\d*))?([^#]*)$/;

var arrays = str.match(reg);

var strInfo ="" ;

for(var index in arrays)

strInfo += arrays[index]+" , ";

alert(strInfo);

}

//万能的校验器

//以后只需要添加相应的正则表达式就行了，代码不用修改

var patterns = new Object();

patterns.ip = /^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])(\.\d{1,2}|1\d\d|2[0-4]\d|25[0-5]){3}$/;

patterns.email = /^(\w+)@(\w+)(\.\w+)+$/;

patterns.date = /^(\d{4})-(0?[0-9]|1[0-2])-(0?[0-9]|[0-2]\d|3[0-1])$/;

// 23:23:59

patterns.time = /^([0-1]\d|2[0-3]):([0-5]\d):([0-5]\d)$/;

function verify(str, pat)

{

var pattern = patterns[pat];

if (str.match(pattern))

return true;

else

return false;

}

getMatchString(strSrc, re);

removeToomuchWord(str);

replace(str);

getUrlPartInfo(str)

alert(verify("26.1.123.2", "ip") + ", " + verify("hilishuai.com", "email")

+ " , " + verify("2003-13-31", "date") + " ,"

+ verify("23:60:22", "time"));