Re: How to exclude a sequence of characters
It sounds like you want to use a zero-width negative lookahead assertion. For example: test(?!-end) You should probably use java.util.regex. I tried the Java statements String text = mytest-xyz; String pattern = .*test(?!-end); System.out.println(text.matches(pattern) ? Ok : NOk); Unfortunately in this case NOk was returned. I thought the Java RegExp would support negative lookaheads; according to the javadoc it must had done it. What's the reason? How must the RegExp statement be written, that texts like mytext-end are not matched, because they a excluded, but a text like mytest-xyz is accepted, because it doesn't end with -end? Thomas Wiedmann - To unsubscribe, e-mail: regexp-user-unsubscr...@jakarta.apache.org For additional commands, e-mail: regexp-user-h...@jakarta.apache.org
Re: How to exclude a sequence of characters
'-xyz' literal does not match the '-end' literal... if you want to
match any three-character ending you'll need something like '-...' in
the regexp
Also, I can't recall of the dash needs to be escaped outside a
square-bracket operator pair, but it might be interpreted as a range
operator here.
On Tue, Mar 22, 2011 at 12:03 AM, Thomas Wiedmann th...@gmx.de wrote:
It sounds like you want to use a zero-width negative lookahead assertion.
For example:
test(?!-end)
You should probably use java.util.regex.
I tried the Java statements
String text = mytest-xyz;
String pattern = .*test(?!-end);
System.out.println(text.matches(pattern) ? Ok : NOk);
Unfortunately in this case NOk was returned. I thought the Java RegExp
would support negative lookaheads; according to the javadoc it must had done
it.
What's the reason?
How must the RegExp statement be written, that texts like mytext-end are
not matched, because they a excluded, but a text like mytest-xyz is
accepted, because it doesn't end with -end?
Thomas Wiedmann
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How to exclude a sequence of characters
Hello, I'm looking for an appropriate regular expression to search a certain pattern, but to exclude a special sequence of characters. Example: Trying to get all matches of the pattern 'test' but excluding all matches of the pattern '-end', i. e. if the text contains 'test-end' this text location should not be matched. By which regular expression can this search condition be realized? Thomas Wiedmann - To unsubscribe, e-mail: regexp-user-unsubscr...@jakarta.apache.org For additional commands, e-mail: regexp-user-h...@jakarta.apache.org
