Thank you for the fast replay.
I tried to use the following regex  my($path,$value) = ($row =~ /(.*),(.*)/); to split the string.
but if there are no commas it won't work. Which regex should I use in order to always put the string into $path so I can only check if $value is defined?
for example:
if "abc" it will be $path = "abc" and $value is undefined.
if "abc,5" it will be $path = "abc" and $value = 5
if "a,b,c,5" it will be $path = "a,b,c" and $value = 5

The algo I would like to implement :
As I see it the steps are:
1. if the string has commas:
1.a. get the last comma and check if the last substring is a number - if so put it in hash like this: $hash{$path} = $value;
1.b. if the substring after the last comma isn't a number - $hash{$path} = 1;
2. if string has no commas: $hash{$string} = 1;


how to implement this?

In reply to Re^2: difference in regex by ovedpo15
in thread difference in regex by ovedpo15

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