On 01/14/2021, at 10:08, Bruce Van Allen <[email protected]
<mailto:[email protected]>> wrote:
> Here’s Rich’s explanation of BBEdit’s behavior.
>
> I’m still not clear why Christopher seems to get different results.
Hey Bruce,
I figured it out.
The original data sample from Howard has many tabs in the “blank” lines.
So by Rich's definition they have content, and Process Lines is able to operate
on them.
When I replace them with entirely empty lines then Process Lines fails.
My sed text filter works in both cases:
#!/usr/bin/env bash
sed -E '/^[[:blank:]]*$/d'
And just for practice let's do that with Perl:
#!/usr/bin/env perl -sw
while (<>) {
if (m/\S+/) {print};
}
--
Best Regards,
Chris
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