next if /^#/ or /^\s*$/ or length < $min_useful_length or  /^REM/ or not /^.{3}\d{4}/ ...
...
... that removes the opportunity to document the business rules ... 
next if /^#/                         # document this 
     or /^\s*$/                      # document this too 
     or length < $min_useful_length  # and this one
     or /^REM/                       # and so on ...
     or not /^.{3}\d{4}/             # ... 
     ...
     ;

[download]

... but I am sometimes very (unpleasantly) surprised by interactions between the very lowest level | precedence logical operators and other expressions (but I can't seem to come up with a good example), so maybe individual statements are better after all.

In reply to Re^4: Remove blank lines from REGEX output by AnomalousMonk
in thread Remove blank lines from REGEX output by Deep_Plaid

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