Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #39198

Re: Because ramine plugging comp.programming with spam....

Show all headers | View raw

On Wed, 27 Nov 2019 18:31:28 -0500, Arne Vajhøj wrote:

> On 11/27/2019 8:32 AM, chad altenburg wrote:
>> This is sort of Java related.
>> 
>> This is about searching for a word in a Java using regex.
>> 
>> I have the word "AlarmService".
>> 
>> 1)searching for "alarm" produces "AlarmService"
>> 
>> 2)searching for "alarmS" produces nothing
>> 
>> 3)searching for "AlarmS" produces "AlarmService"
>> 
>> The question is how come having a lowercase in "a" in 1 produces the
>> entire word while the lowercase "a" in 2 doesn't? Ie, I have to change
>> it uppercase in order to get the correct result.
> 
> Could you show some code?
> 
> Because I cannot recreate the problem.
> 
> import java.util.regex.Pattern;
> 
> public class RegexMatch {
> 	public static void test(String needle, String haystack) {
> 		Pattern p = Pattern.compile(needle);
> 		System.out.printf("Standard match %s in %s : %b\n", 
needle, haystack,
> p.matcher(haystack).find());
> 		Pattern pi = Pattern.compile(needle, 
Pattern.CASE_INSENSITIVE);
> 		System.out.printf("Case insensitive match %s in %s : 
%b\n", needle,
> haystack, pi.matcher(haystack).find());
> 	}
> 	public static void main(String[] args) {
> 		test("alarm", "AlarmService");
> 		test("alarmS", "AlarmService");
> 		test("AlarmS", "AlarmService");
> 	}
> }
> 
> produces:
> 
> Standard match alarm in AlarmService : false Case insensitive match
> alarm in AlarmService : true Standard match alarmS in AlarmService :
> false Case insensitive match alarmS in AlarmService : true Standard
> match AlarmS in AlarmService : true Case insensitive match AlarmS in
> AlarmService : true
> 
> which matches my expectations.
>

Thats what the docs for the Pattern class say should happen too.
 

-- 
Martin    | martin at
Gregorie  | gregorie dot org

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Because ramine plugging comp.programming with spam.... chad altenburg <cdalten@gmail.com> - 2019-11-27 05:32 -0800
  Re: Because ramine plugging comp.programming with spam.... Martin Gregorie <martin@mydomain.invalid> - 2019-11-27 13:47 +0000
    Re: Because ramine plugging comp.programming with spam.... chad altenburg <cdalten@gmail.com> - 2019-11-27 05:59 -0800
      Re: Because ramine plugging comp.programming with spam.... Martin Gregorie <martin@mydomain.invalid> - 2019-11-27 15:02 +0000
        Re: Because ramine plugging comp.programming with spam.... Arne Vajhøj <arne@vajhoej.dk> - 2019-11-27 18:22 -0500
          Re: Because ramine plugging comp.programming with spam.... Martin Gregorie <martin@mydomain.invalid> - 2019-11-27 23:38 +0000
            Re: Because ramine plugging comp.programming with spam.... Arne Vajhøj <arne@vajhoej.dk> - 2019-11-27 20:26 -0500
              Re: Because ramine plugging comp.programming with spam.... chad altenburg <cdalten@gmail.com> - 2019-11-28 08:15 -0800
                Re: Because ramine plugging comp.programming with spam.... chad altenburg <cdalten@gmail.com> - 2019-12-10 10:28 -0800
                Re: Because ramine plugging comp.programming with spam.... chad altenburg <cdalten@gmail.com> - 2019-12-10 10:29 -0800
  Re: Because ramine plugging comp.programming with spam.... Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2019-11-27 20:09 +0100
    Re: Because ramine plugging comp.programming with spam.... Arne Vajhøj <arne@vajhoej.dk> - 2019-11-27 18:23 -0500
  Re: Because ramine plugging comp.programming with spam.... Arne Vajhøj <arne@vajhoej.dk> - 2019-11-27 18:31 -0500
    Re: Because ramine plugging comp.programming with spam.... Martin Gregorie <martin@mydomain.invalid> - 2019-11-27 23:41 +0000

csiph-web