如何避免在字段中使用特殊字符... [英] How Do I Avoid Special Characters In A Field...

问题描述

如何防止在字段中输入特殊字符。



i tryed：

  NOT （REGEX（电话，
   \\ D *？（\\\\\\ D *？）））

但是我不能在空间放空间。



有人可以帮我吗？



谢谢

#regards

Seb。

解决方案

你可以使用这个正则表达式：

 / [\ w] + / 

这将允许单词字符和空格。

此任务的通用正则表达式模式不存在。这是原因 [ ^ ]。



看看这里： http://www.regexlib.com/DisplayPatterns.aspx?cattabindex=6&categoryId=7 [ ^ ]并为您选择合适的。

\ D表示任何不是数字的字符，\ d表示任何字符都是数字，所以你的正则表达式是：

任何不是数字的字符，任意数量的重复，尽可能少的
编号的捕获组。 [\\\\ D *？] 
 \\\\ D *？ 
任意数字
任何不是数字的字符，任意数量的重复，尽可能少

这对于手机来说有点奇怪数字，这是你似乎想要匹配的 - 因为它将匹配任何有数字的东西...

正常电话号码正则表达式是这样的：

 \（（？< areacode> \d {3}）\）\ * *（？< number> \d {3}（ ？： -  | \ * *）\d {4}）< / number>< / areacode> 

这可能值得你从那里开始弄清楚如何准确匹配你的目标。



为了帮助你，请获取 Expresso [ ^ ] - 它是免费的，它检查并生成正则表达式。

这是我得到你的正则表达式的解释，以及样本电话号码fr OM

Hi,
How do i prevent typing special characters in a field.

i tryed:

NOT(REGEX(Phone,
"\\D*?(\\d\\D*?)"))

but then i cant put spaces in space should be allowed.

can anybody help me please?

Thank you
#regards
Seb.

解决方案

You can use this regex:

/[\w ]+/

This will allow word characters and spaces.

A universal regex pattern for this task does not exists. It's set of reason[^].

Have a look here: http://www.regexlib.com/DisplayPatterns.aspx?cattabindex=6&categoryId=7[^] and choose the proper one for you.

"\D" means "any character that isn't a digit", and "\d" means "any character that is a digit" so your regex is:

Any character that is not a digit, any number of repetitions, as few as possible
A numbered capture group. [\d\D*?]
    \d\D*?
        Any digit
        Any character that is not a digit, any number of repetitions, as few as possible

Which is a little odd for a phone number, which is what you appear to be trying to match - because it will match anything that has a digit in it...
The "normal" phone number regex is along the lines of:

\((?<areacode>\d{3})\)\s*(?<number>\d{3}(?:-|\s*)\d{4})</number></areacode>

And it might be worth your starting there and working out how to match exactly what you are after.

To help you in this, get a copy of Expresso [^] - it's free, and it examines and generates Regular expressions.
It's where I got the explanation of your regex, and the sample phone number one from.

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