Nov 27, 2012, 10:51 AM
Post #5 of 5
Re: [rovf] Can you explain me the following code?
[In reply to]
I think you do. In the OP's code, grep removes all lines which are either
* initially empty, or
* consist only of a curly brace (or just an empty pair of curlies), or - as a funny side effect -
* consist only of the digit zero (after removal of appropriate curlies)
Don't ask me whether this makes sense, but this is different from using map - unless it is me who is missing something now ;-)
Yes, you are absolutely right, I reacted too quickly, I should have explained better what I meant. It does indeed some filtering if $_ is reduced to 0 or "". What I really meant to say is that I wasn't sure this was really the desired effect to do this.
But perhaps it makes sense, after all...