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Re: Regex doesn't recognize single quote

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On 1/7/12 6:02 PM, Jim Janney wrote:
> Daniel Pitts<newsgroup.nospam@virtualinfinity.net>  writes:
>
>> On 1/6/12 2:08 PM, Jerric wrote:
>>> Hi, I need to remove special characters, except \w and single quotes,
>>> from a string, can someone please help me on the regex?
>>>
>>> for example, I have "ab'de+fg", I want to get "ab'defg", and I tried
>>> the following code, but it removed single quote. seems to me java
>>> cannot handle the pattern like [^'].
>>>
>>> String val = "ab'de+fg";
>>> val = val.replaceAll("[^\\w']+", "");
>>>
>>> Thanks a lot,
>> It works for me, which indicates the problem is somewhere in the code
>> you didn't post.  Here is an SSCCE:
>>
>> public class Works {
>>      public static void main(String[] args) {
>>          String val = "ab'de+fg";
>>          System.out.println(val.replaceAll("[^\\w']+", ""));
>>
>>      }
>> }
>>
>> Try posting exactly the code which causes the problem.
>
> Since replaceAll is being used, the closure is unnecessary, so this can
> be shortened by one character :-)
>
Perhaps, but I wouldn't be surprised if there was a performance 
difference in the two.  I'm not saying there definitely is, but there 
very well could be.

Also, they are only equivalent because the replacement string is zero 
length.

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Regex doesn't recognize single quote Jerric <jerricgao@gmail.com> - 2012-01-06 14:08 -0800
  Re: Regex doesn't recognize single quote Martin Gregorie <martin@address-in-sig.invalid> - 2012-01-06 22:23 +0000
  Re: Regex doesn't recognize single quote Jake Jarvis <pig_in_shoes@yahoo.com> - 2012-01-06 23:48 +0100
  Re: Regex doesn't recognize single quote Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-06 15:49 -0800
    Re: Regex doesn't recognize single quote Jim Janney <jjanney@shell.xmission.com> - 2012-01-07 19:02 -0700
      Re: Regex doesn't recognize single quote Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-09 09:58 -0800
  Re: Regex doesn't recognize single quote Roedy Green <see_website@mindprod.com.invalid> - 2012-01-06 21:47 -0800
    Re: Regex doesn't recognize single quote Roedy Green <see_website@mindprod.com.invalid> - 2012-01-07 14:41 -0800
      Re: Regex doesn't recognize single quote Rafael Villar <morgano5@hotmail.com> - 2012-01-08 09:05 +1000
        Re: Regex doesn't recognize single quote Rafael Villar <morgano5@hotmail.com> - 2012-01-08 09:10 +1000
        Re: Regex doesn't recognize single quote Lew <noone@lewscanon.com> - 2012-01-07 17:20 -0800
      Re: Regex doesn't recognize single quote Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-09 10:08 -0800
        Re: Regex doesn't recognize single quote Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-09 10:33 -0800
    Re: Regex doesn't recognize single quote Roedy Green <see_website@mindprod.com.invalid> - 2012-01-07 14:48 -0800
      Re: Regex doesn't recognize single quote Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-01-07 20:58 -0400

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