On 06/01/2021, at 08:11, Howard <[email protected]
<mailto:[email protected]>> wrote:
> I have a set of numbers. Within some of them is at least one number within
> parentheses. I need to find all the lines containing numbers within
> parentheses and extract those numbers. I also need to know which line they
> are extracted from.
Hey Howard,
Bash text filter:
#!/usr/bin/env bash
nl -n ln | sed -En 's![0-9]*(\([0-9]+\))[0-9]*!\1!p;'
Result:
2 (10)
4 (16)
5 (10)(11)
I've left on the parentheses to make it clear when there are more than one set
in a line.
If we're going to resort to Perl we might as well go all in:
#!/usr/bin/env perl -sw
while (<>) {
if ( m!\(\d+\)! ) {
s!\d*(\(\d+\))\d*!$1!g;
print "$.\t" . $_;
}
}
Result:
2 (10)
4 (16)
5 (10)(11)
Or just to be a bit cheeky:
#!/usr/bin/env perl -sw
while (<>) { if ( m!\(\d+\)! ) { s!\d*(\(\d+\))\d*!$1!g; print "$.\t" . $_; } }
OR
#!/usr/bin/env bash
perl -wlne '{if(m!\(\d+\)!){s!\d*(\(\d+\))\d*!$1!g;print"$.\t".$_;}}'
😎
Don't forget – you can extract text directly from the front document using the
Find Dialog and the [Extract] button.
1) Number lines.
2) Extract lines to new doc (with Find Dialog).
3) Find/replace to leave only the desired text.
The same as Neil's suggestion but without using Process Lines Containing.
TMTOWTDI.
I generally prefer using a text filter for this sort of thing, and I have one
that opens with a hotkey and runs via another hotkey. So writing a filter and
running it usually takes me less time than running through the steps with
BBEdit's other tools. ( Usually but not always... :)
--
Best Regards,
Chris
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