I've been a professional C, Perl, PHP and Python developer.
I'm an ex-sysadmin from the late 20th century.
These days I do more Javascript and CSS and whatnot, and promote UX and accessibility.
I've been reading the thread about this on /r/programming (how circular!) and they're mostly (deliberately?) missing the point and trying to optimise it rather than to see it as a demonstration of pipes.
Full-time web dev; JS lover since 2002; CSS fanatic. #CSSIsAwesome
I try to stay up with new web platform features. Web feature you don't understand? Tell me! I'll write an article!
He/him
That bit of the regex will only match on a line that contains a dollar sign ($), a single digit ([0-9]), and a literal dot (\.). So "$2.99" will match, but "$12.99" won't, because there are two digits between the dollar sign and the dot.
I've been a professional C, Perl, PHP and Python developer.
I'm an ex-sysadmin from the late 20th century.
These days I do more Javascript and CSS and whatnot, and promote UX and accessibility.
I've been reading the thread about this on /r/programming (how circular!) and they're mostly (deliberately?) missing the point and trying to optimise it rather than to see it as a demonstration of pipes.
cough
EDIT: changed
\dshortcode for[0-9]so it'll work with BSD and GNU grep.That's what this bit at the end is for:
That bit of the regex will only match on a line that contains a dollar sign (
$), a single digit ([0-9]), and a literal dot (\.). So "$2.99" will match, but "$12.99" won't, because there are two digits between the dollar sign and the dot.Try it.