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Groups > comp.lang.java.programmer > #13317

Re: Some regexp problems

From Lew <lewbloch@gmail.com>
Newsgroups comp.lang.java.programmer
Subject Re: Some regexp problems
Date 2012-04-02 12:48 -0700
Organization http://groups.google.com
Message-ID <13964491.992.1333396119359.JavaMail.geo-discussion-forums@pbgr6> (permalink)
References <2048846a-7678-4d0e-b76f-38670934297d@m16g2000yqc.googlegroups.com>

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laredotornado wrote:
> I'm using Java 6.  I'm trying to write a regexp, which is failing, but
> I can't figure out why (same expression works in Perl).  Here is my
> code ...
> 
> 						final Pattern addPattern = Pattern.compile("\\s*ADD\\s+([^\\s]+)\
> \s*", Pattern.MULTILINE);

Why do you use such exorbitant, unreadable indentation for Usenet posts? You've been around a while and really ought to know better. Do you _want_ to discourage people from answering?

Come on, man.

> 						final Matcher addMatcher = addPattern.matcher(cellValue);
> 
> but the call "addMatcher.matches()" returns false for Strings that
> look like they match to me.  Here is one of them
> 
>    cellValue = "ADD 6CCRASR.1         ADD 6CCRASR.2               ADD
> 6CCRASR.3           ADD 6CCRASR.5               ADD 6CCRASR.
> 10             ADD 6CCRASL.3                ADD 6CCRASL.5\nADD 6RSL.
> 1\nADD 6RSL.2\nADD 6RSL.3\nADD 6RSL.5\nADD 6RSL.10\nADD 6RSIT.1\nADD
> 6RSIT.2\nADD 6RSIT.3\nADD 6RSIT.5\nADD 6RSIT.10\nADD 6LS.5.b  "
> 
> The "\n"'s are newline characters.  Any idea what is wrong with the
> above regexp or my code? 

The indicated regex does not match that string. It only matches a substring of that string.

Check out the Javadocs for 'Matcher' for alternatives.

-- 
Lew

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Thread

Some regexp problems laredotornado <laredotornado@zipmail.com> - 2012-04-02 12:32 -0700
  Re: Some regexp problems Lew <lewbloch@gmail.com> - 2012-04-02 12:48 -0700
  Re: Some regexp problems Roedy Green <see_website@mindprod.com.invalid> - 2012-04-02 16:07 -0700
  Re: Some regexp problems Arne Vajhøj <arne@vajhoej.dk> - 2012-04-02 19:49 -0400
  Re: Some regexp problems Roedy Green <see_website@mindprod.com.invalid> - 2012-04-03 10:47 -0700
  Re: Some regexp problems Roedy Green <see_website@mindprod.com.invalid> - 2012-04-03 10:48 -0700
    Re: Some regexp problems Arne Vajhøj <arne@vajhoej.dk> - 2012-04-03 19:30 -0400
  Re: Some regexp problems Roedy Green <see_website@mindprod.com.invalid> - 2012-04-03 16:29 -0700

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