正则表达式

 1 //    是否是 合法邮箱
 2 BOOL IsValidEmail(const CString strEmail)
 3 {
 4     if( strEmail.GetLength() < 5 ) //26个小写字母
 5     {
 6         return FALSE;
 7     }
 8     char ch;
 9 
10     int atCount =0;
11     int atPos = 0;
12     int dotCount = 0;
13     for(int i=0; i<strEmail.GetLength(); i++) //  从0 开始判断
14     {
15         ch = strEmail[i];
16         if( IsValidChar(ch) )
17         {
18             if(ch==64) //"@"
19             {
20                 atCount ++;
21                 atPos = i;
22             }
23             else if( (atCount>0) && (ch==46) )//@ 符号后的"."号
24             {
25                 dotCount ++;
26             }
27         }
28         else
29         {
30             return FALSE;
31         }
32     }
33     //6. 结尾不可以是字符 "@" 或者 "".
34     if( ch == 46 )
35     {
36         return FALSE;
37     }
38     //2. 必须包含一个 并且 只有一个符号“@”
39     //3. @  后必须包含至少一个至多三个符号"."
40     if( (atCount!=1) || (dotCount<1) || (dotCount>3) )
41         return FALSE;
42     //5. 不允许储蓄“@.” 或者 ".@"
43     int x=-1, y=-1;
44     x=strEmail.Find(_T("@."));
45     y=strEmail.Find(_T(".@"));
46     if( x>0 || y>0 )
47     {
48         return FALSE;
49     }
50     return TRUE;
51 }

 1 //身份证正则表达式(15位)
 2 isIDCard1=/^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$/;
 3 //身份证正则表达式(18位)
 4 isIDCard2=/^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{4}$/; 
 5 地区、性别和身份证进行判断的正则表达式：
 6 <script>
 7 var
 8 aCity={11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",33:"浙江",34:"
 9 
10 安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州"
11 
12 ,53:"云南",54:"西藏",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"}
13 
14 function cidInfo(sId){
15 var iSum=0
16 var info=""
17 if(!/^\d{17}(\d|x)$/i.test(sId))return false;
18 sId=sId.replace(/x$/i,"a");
19 if(aCity[parseInt(sId.substr(0,2))]==null)return "Error:非法地区";
20 sBirthday=sId.substr(6,4)+"-"+Number(sId.substr(10,2))+"-"+Number(sId.substr(12,2));
21 var d=new Date(sBirthday.replace(/-/g,"/"))
22 if(sBirthday!=(d.getFullYear()+"-"+ (d.getMonth()+1) + "-" + d.getDate()))return "Error:非法生日";
23 for(var i = 17;i>=0;i --) iSum += (Math.pow(2,i) % 11) * parseInt(sId.charAt(17 - i),11)
24 if(iSum%11!=1)return "Error:非法证号";
25 return aCity[parseInt(sId.substr(0,2))]+","+sBirthday+","+(sId.substr(16,1)%2?"男":"女")
26 }