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Pattern Matching

 
Greenhorn
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I am getting output as "0 9", but the length of the string match is 9.
Can anyone explain?

Myself

 
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Since you've written (b-d)*, so there will be an empty match at the end of the string as * means 0 or more occurrences of something...
 
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Ankit is correct, so if you change it into (+ means one or more occurences)

you will get:
0

or into:

you will get:
0 3 6
 
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