Regular Expression Problem , Please Help

2012 9 27
1 个回答
4 次查看（30 天）

0 个投票

I have no idea how to do this ..
str = '[a,b,c,d,e,[f1,f2],g],[u,v,w,[x1,x2],[y1,y2],z]';
Using this code:
regexp(str,'\[.*?(\[.*?\],[.*?\]).*?\]','tokens');
i got an answer like this:
ans =[f1,f2],g],[u,v,w,[x1,x2]
but what I want is like this:
ans = [x1,x2],[y1,y2]

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Matt Fig
Matt Fig 2012-9-27
编辑：Matt Fig 2012-9-27
What is the general form of the string? Will x1 and y1 be numbers? What about a, b, f1, g, u and z? I ask for the general form because right now it is not very interesting for regexp.
regexp(str,'\[x1.*\y2]','match')
Yowh
Yowh 2012-9-27
the string is dynamic ..
Matt Fig
Matt Fig 2012-9-28
That doesn't really answer the question. I showed you how to find the answer you requested, then I asked you to give the general form, including the rule for finding what you want. "The string is dynamic" tells me nothing really. Good luck.

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回答（1 个）

Walter Roberson
Walter Roberson 2012-9-27

0 个投票

Remember, .* will match everything including [ or ] characters. You need to exclude those characters from the search if you are looking for the ] matching a [ .

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Yowh
Yowh 2012-9-28
I have tried this but it doesn't work:
ans = regexp(str,'\[.*?\[[^\]]*?\].*?\]','match')

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Yowh
Yowh
2012-9-27

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