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greedy quantifier

 
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I have the following program :


I get the result like this:

0f
1


For the program below:



I get the result :
0f

I don't understand why the results are different. In my understanding, the first program should give the result 0f , the same as the second. why is it different?

Thanks.
 
Sheriff
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Please check your private messages for an important administrative matter.
 
author
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In the first case, the pattern is zero or one letter f. In the second case, the pattern is one or more letter f. It is the zero letter f part of the first pattern that allows the second match.

Henry
 
Isaac Lee
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Thank you. Henry
 
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[Deleted entire post as "hi-jack." Original in our "deleted" forum. CR]
 
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