正则表达式在jQuery验证 - jQuery的单引号问题 [英] Regex in jQuery Validation - Single quote issue in jQuery

问题描述

我有一个正规的前pression验证密码包含数字，小写和大写字符。

下一部作品的罚款。但是，当我在jQuery验证使用：

  txtPassword：{
    要求：真实，
    正则表达式：正则表达式
}正则表达式= (?=^.{8,16}$)(?=.*\\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+}{":;/'?/>.<,])(?!.*\\s).*$
 

但问题是单引号 在Javascript。一些机构可以请帮我解决这个问题？三江源。

解决方案

有需要固定在这个正则表达式的几件事情：

• 在前瞻检查密码，你有没有时间
  一个量词。因此，它总是会失败的检查。为例如，对于
  一些检查，你应该有（？=。* \\ D）而不是的（？= \\ D）。


• 您不要用斜杠 / 转义字符，而不是你
  使用反斜杠 \\ 。你必须将其与一个逃脱不正确
  forwardslash在最后一个字符类。

字符内
• 的唯一特殊字符或元字符
  类是右括号（] ），反斜线（ \\ ），插入符号（ ^ ）
  和连字符（ - ）。因此它是不因单引号。罪魁祸首是你插入符号未逃脱。

试试这个正则表达式，其中插入符号 ^ 转义，而不是报价 ：

<$p$p><$c$c>(?=^.{8,16}$)(?=.*\\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\\^&*()_+}{\":;'?/>.<,])(?!.*\\s)^.*$

---

我对你的问题假设，你的意思是一个正则表达式来验证一个密码：

• 在至少1号


• 在至少1 lowerchase字符


• 在至少1个大写字符


• 在至少1个特殊字符出集 @＃$％^＆放大器; *（）_ +} {：;。'/＆GT;＆LT;


• 长度与16之间的8个字符

如果这是真的，请与澄清的要求更新了你的问题。

---

在<一个正则表达式播放href=\"http://regexpal.com/?flags=g&regex=%28%3F%3D%5E.%7B8%2C16%7D%24%29%28%3F%3D.%2a%5Cd%29%28%3F%3D.%2a%5Ba-z%5D%29%28%3F%3D.%2a%5BA-Z%5D%29%28%3F%3D.%2a%5B!%40%23%24%25%5C%5E%26%2a%28%29_%2B%7D%7B%22%3A%3B%27%3F%2F%3E.%3C%2C%5D%29%28%3F!.%2a%5Cs%29%5E.%2a%24&input=P%40sSw0rD\"相对=nofollow> RegexPal

---

基于jQuery的code。捣鼓这个这里：

  VAR正则表达式= /(?=^.{8,16}$)(?=.*\\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\\^&*()_+}{\":;'?/>.<,])(?!.*\\s)^.*$/g;
//if(regex.test（$（'＃txtPassword）VAL（）））{警报（'匹配'）; }其他{警报（'不匹配'）}
如果（regex.test（'P @ sSw0rD'））{
    警报（'匹配'）;
}其他{
    警报（'不匹配'）;
}
 

I have a regular expression to validate a password to contain numbers, lowercase and uppercase characters.

The one below works fine. But when I use this in jQuery Validation:

txtPassword: {
    required: true,
    regex: Regex
}

Regex = (?=^.{8,16}$)(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+}{":;/'?/>.<,])(?!.*\s).*$

But the issue is single quote ' in Javascript. Can some body please help me to resolve this? Thankyou.

解决方案

There are several things that need to fixed in this regex:

• In your lookahead checks for the password, you have a period without a quantifier. Hence it will always fail that check. For e.g., for the number check, you should have (?=.*\d) instead of (?=.\d).
• You do not escape characters with a forward-slash /, instead you use a backslash \. You have it escaped incorrectly with a forwardslash in the last character class.
• The only special characters or metacharacters inside a character class are the closing bracket (]), the backslash (\), the caret (^) and the hyphen (-). Hence it is not due to the single quote. The culprit is your caret which is not escaped.

Try this regex where the caret ^ is escaped instead of the quote ':

(?=^.{8,16}$)(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&*()_+}{":;'?/>.<,])(?!.*\s)^.*$

---

I am assuming by your question, you meant a Regexp to validate a password with:

• at least 1 number
• at least 1 lowerchase character
• at least 1 uppercase character
• at least 1 special character out of the set !@#$%^&*()_+}{":;'?/>.<,
• length between 8 and 16 characters

If this is true, please update your question with the clarified requirement.

---

Play with the regex in RegexPal

---

jQuery based code. Fiddle with this here:

var regex = /(?=^.{8,16}$)(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&*()_+}{":;'?/>.<,])(?!.*\s)^.*$/g;
//if(regex.test($('#txtPassword').val())){ alert('Match'); }else{alert('No Match')}
if (regex.test('P@sSw0rD')) {
    alert('Match');
} else {
    alert('No Match');
}​

这篇关于正则表达式在jQuery验证 - jQuery的单引号问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！