我如何能够定期表达,以适应以下特点:
A-Z a-z 0-9 " - ? . , !
......以及新的线路和空间
这与上述任何一种特性相符:
[A-Za-z0-9"?. ,!
-]
良机:
^[A-Za-z0-9"?. ,!
-]+$
或者,可能的话简单明了会满足你们的需要:
^[ws"?. ,!-]+$
请注意,如果在座标中出现这种情况,你将需要从<条码><>>>><>>>>或<条码>(><>>>>>>中(通过翻番或用斜线预先确定)中逃脱。
还注意到<>->->----->------------------------------- (Can also be place first, or prefixed with Back>s prevention that.
The w will match a "word" character, which is almost always [A-Za-z0-9_].
The s will match a whitespace character, (i.e. space,tab,newline,carriage return).
但确实,你需要更多地了解你重新努力做些什么。 因此,人们可以提出更合适的解决办法。
Recently I discovered two amazing regular expression features: ?: and ?!. I was curious of other neat regex features. So maybe you would like to share some tricky regular expressions.
I need to remove image tags from text, so both versions of the tag: <img src="" ... ></img> <img src="" ... />
How do I, using preg_replace, replace more than one underscore with just one underscore?
I was trying to write a regexp to replace all occurrences of with unless the is already preceeded immediately by a . I m doing this in Ruby 1.8.6 which doesn t support look behind in ...
Specifically, I have an array of strings called val, and want to replace all instances of "%{n}%" in the input with val[n]. More generally, I want the replace value to be a function of the match ...
I have the following log entry that I am processing in PowerShell I m trying to extract all the activity names and durations using the -match operator but I am only getting one match group back. I m ...
I m building a lexical analysis engine in c#. For the most part it is done and works quite well. One of the features of my lexer is that it allows any user to input their own regular expressions. This ...
I need a regex for four-digit numbers separated by comma ("default" can also be a value). Examples: 6755 3452,8767,9865,8766,3454 7678,9876 1234,9867,6876,9865 default Note: "default" ...