更改密码控制正则表达式仅在 IE 7 中奇怪地验证
我在应用程序中使用 Asp.net 更改密码控件，一切似乎都很顺利，直到用户告诉我她在更改密码时无法满足强度要求。对此，她使用的是 IE 7，无论输入什么，验证都会失败（并且仅在 IE 7 中。Firefox、IE 8、Chrome 等都按预期工作）。这是我正在使用的正则表达式：
^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?!.*\s).{5,15}$
我尝试了在本网站中找到的其他一些正则表达式，以及人们似乎使用的其他正则表达式，但我遇到了同样的问题。
看来我在最后输入的任何模式（数字、上限或下限 alpha）预计都会重复至少 5 次。例如：
Hello1 （不起作用）
11111Hello （不起作用）
Hello11111 （起作用）
同样，这仅在 IE 7 中有效我已经在这上面花了太多时间了，而且我很困惑。有人有什么想法吗？
I'm using the Asp.net change password control in my application and all seems to be find and dandy until a user tells me she has a problem meeting the strength requirements when changing her password. Looking into this, she is using IE 7 and no matter what she puts in, the validation fails (and ONLY in IE 7. Firefox, IE 8, Chrome etc. all work as expected). Here is the regex i'm using:
^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?!.*\s).{5,15}$
I've tried out a few others that I've found throughout this site and others that folks seem to be using with no issues and I come across the same problem.
It seems that which ever pattern I enter in last (digit, upper or lower alpha) is the one that is expected to be repeated min of 5 times. For example:
Hello1 (doesn't work)
11111Hello (doesn't work)
Hello11111 (works)
Again, this is ONLY in IE 7. I've spent too much time on this already and I'm stumped. Anybody have any ideas??
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显然 Internet Explorer 有一个错误。查看这篇文章：JScript/VBScript Regex Lookahead Bug。该示例是相同的 - 密码检查 - 他们提供了一种解决方法。使用他们建议的方法作为指导，模式变为：
他们的模式与您的模式非常相似，除了对空白的负面环顾之外。
Try using
.*in the look-arounds. Using just.only covers one character followed by whatever you're specifying in the look-arounds. You want to look all the way ahead and see if anything matches. I tried the following expression in Expresso and it worked with the samples you listed and also failed on invalid inputs as expected.Apparently Internet Explorer has a bug. Check out this post: A JScript/VBScript Regex Lookahead Bug. The example is the same - a password check - and they provide a work-around. Using their suggested approach as a guide, the pattern becomes:
Their pattern is very similar to yours, except for the negative look-around for whitespace.
Try using
.*in the look-arounds. Using just.only covers one character followed by whatever you're specifying in the look-arounds. You want to look all the way ahead and see if anything matches. I tried the following expression in Expresso and it worked with the samples you listed and also failed on invalid inputs as expected.