Here i am explaining in detail what actually i am trying to extract.

And you seem to be completely ignoring (or not understanding) the code sample and suggestions that I posted. If you don't understand something I've said or something in my code, it's okay to quote me in a reply and say that you don't understand.

i am matching the output for the tags with 2 slashes in it ex:/vobs/cs_test_script and vobtag with one slash in it ex:/scm with regular expression that has to match the output for both type of vobtags(/vobs/cs_test_script,/scm)by using alternation operator in pattern matching as below script

Checking your code, I have learned something. I expected that if a regex that starts like this:  /^*\s+/ it would be a syntax error, and the script would not run at all. But having tried it, I see that it does run (it's not an error), and it even seems to work: $_="* foo"; m{^*\s+foo} returns true.

Still, I prefer using a backslash when I want to match a literal "*" character. Note that  m{*\s+foo} is a syntax error.

(And make sure you understand the distinction: slash is "/", backslash is "\", and the two have very different meanings and uses in perl.)

i am combining the pattern match of storage1 and storage2 by alternation operator

You don't need to use an alternation (|) in the regex. The code that I suggested above uses a quantifier, so that one, two, three or more slashes in the path string can be treated by the single expression -- shown here with commentary: 

     m{^     # at the start of the string
       \*    # match a literal asterisk character
       \s+   # then one or more whitespace characters
       (?:   # begin a non-capturing group expression
        /    # match a literal slash character
        \w+  # then one or more alphanumeric_word characters
       )+    # close the group, match 1 or more instances of that expr
+ession
       \s+   # then one or more whitespace characters
       (\S+) # capture a group of non-whitespace characters
      }x     # end of regex (x modifier lets comments and spacing be i
+gnored)

[download]

The last couple things that you are not paying attention to are: whether you need to be processing your data line by line, rather than slurping all the lines into a single "$arr" variable, and whether you would be better off using "split" instead of regex matches.

In reply to Re^5: Problem in pattern matching with alternation by graff
in thread Problem in pattern matching with alternation by perladdict

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