Regular expression problem

[Sky Wong]

I would like to match this pattern
<title>(any character including chinese except '<' and '>')</title>

e.g.
1) <title>一二三</title> --> should be matched
2) <title>一二<三</title> --> should not be matched

I can match both (1)&(2) by this Regular expression:
<title>[\P{Cn}]*</title>, but after I change to RE to
<title>[\P{Cn}-[<>]]*</title> (minus the '<' and '>'), (2) still can
be matched, I don't know why.

would someone help me to change the RE so that it can distinguish (1)
and (2)?

 

[pietdejong]

How I see it, is that you're specifying in your adjusted RE that it
should match an expression between <title> and </title> that contains:
Chinese characters;
the character '-' ;
the characters '<' and '>'.

Try using <title>[^<]*</title>.

Piet

 

[John C. Bollinger]

How I see it, is that you're specifying in your adjusted RE that it
should match an expression between <title> and </title> that contains:
Chinese characters;
the character '-' ;
the characters '<' and '>'.

Try using <title>[^<]*</title>.

Right, as far as I can tell, the part about matching Chinese characters
is irrelevant -- Java doesn't treat them any differently from any other
character. That revised RE should do much better, but it's not quite
there yet. Given that this looks a lot like a homework, I'll just leave
it there.


John Bollinger
(e-mail address removed)