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Zero length matches??

 
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Hello all,
The following code splits the string into 4 strings out of them 3 of are zero length...
I thought i was strong in determining zero length matches..


Can someone suggest me any reference or tutorials regular expressions particularly zero length macthes....
 
Greenhorn
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Hi,

The best brief lesson/tutorial that I found was Sun's own Java regex tutorial.

Zero length matches are well explained in the Quantifiers section of the tutorial.
 
Hareendra Reddy
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Thank you Sharukh for reply,
I already read that tutorial and i think understood the concept well...
but i need more deep disussion about zero length matches particular...
 
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Does this help ?



A zero length string is still a match. It is the empty string that resides between two "aaa" strings.
 
Hareendra Reddy
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Thank you Deepak ...
I understood that problem ..
I want to read more about zero length matches...
can you suggest me some references??
 
Deepak Bala
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Hareendra Reddy wrote:Thank you Deepak ...
I understood that problem ..
I want to read more about zero length matches...
can you suggest me some references??



You can dive into the Pattern and Matcher implementations and knock yourself out. Those are the best references
 
Hareendra Reddy
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Thank you Deepak..
 
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There are books available on regular expressions like "Mastering Regular Expressions" or "Java Regular Expressions" which you can go through if you want in-depth knowledge of regular expressions...
 
Shahrukh Naqui
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There is also this Regular expressions website, if you haven't found it already. Its quite detailed.
 
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