Instead of slurping the file into a scalar, read it to an array, and then do the substitutions one line at a time, printing as you go if you succeed at substituting on the line. I'm loath to attempt to code it since I should have been in bed quite a while ago, but in general if you want line-by-line action and control on a file, you shouldn't put it in a scalar.

In reply to Re: Comparing $_ --- before/after by ssandv
in thread Comparing $_ --- before/after by mrc

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