When I first learned perl I wrote the classic "replace text in files" script
that probably everybody else writes. It is run with:
% replace 'sometext' 'some other text' <files>
... where $match gets the first arg, and $replace gets the second. It
didn't work at first, but someone on this list recommended that I use:
s/$match/qq(qq($replace))/gmee;
Something magical about the paired "qq("s and "e"s makes it work.
Yesterday I finished a unit converter, and I thought, "Wouldn't it be great
to be able to convert units on a column of data in a file?" (I don't want
to use awk because it messes up nicely lined up columns.)
But this doesn't work:
% replace '^((\s*\S*){8}\s*)(\S*)' '${1}qx(do -uc $3 in cm)'
Any ideas why "qx" wouldn't work inside of my s/// operator above?
- B
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