On further thought, the line-search should be a "watch" and not a "breakpoint," as every breakpoint must be associated with a line. "b expr" tests expr on the current line, not every line!

And now that I've figured that out, I've found the wisdom I seek, based on the search result changing state 

w $main::{"_<".(caller 2)[1]}[(caller 2)[2]] =~ /\bprint\b/

[download]
I welcome any improvements- such as
  1. not having to call "caller 2" twice
  2. have the expression only change value when it first hits the "print" statment, and not when it goes to the next line- perhaps by using the flip-flop operator
  3. somehow using perl5db's English-named variables

      In reply to Re^2: Make debugger break on source lines matching a pattern by Yary
      in thread Make debugger break on source lines matching a pattern by Yary

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