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I'm looking for a regex which can match the a value between brackets and deal with a seperator character within.
This is the format I'm after:
[?#?]
where ? can be one or more characters and # is '+', '-' or '='
It should match the following.
[1+1]
[A=T]
[AB=#1#2#3]
So far I've got this:
\[.*[\+-=]?\]
But it doesn't work well, it includes text between the 'tags'.
[A=B]ShouldNotInclude[1=3] (but it does )
I'm obviously doing something wrong,the whole regex probably.
Anyone got an idea?
Found the problem, not the solution.
Problem is that it jumps to the last ']' character it can detect.
modified on Thursday, May 26, 2011 9:15 AM
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Got it:
\[(.*?)[\+-=](.*?)\]
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What you saw is called 'greedy' matching. The better regex engines support non-greedy matching operators, which behave a bit more intuitively, even if they make the regex unreadable!
Cheers,
Peter
Software rusts. Simon Stephenson, ca 1994.
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