On Mon, 27 Nov 2017, Philip Hands wrote:
> I'm not sure its important, but when testing a similar script I came up
> with something that seems to give better results on the (perhaps
> demented) test case I was playing with. Here's mine:
>
> 's/\([^= ]\+\|\([^= ]*=\("[^"]*"\|'"'[^']*'"'\|[^"'"'"' ][^ ]*\)\)\)\(
> \|$\)/\1\n/g'
>
> The sed is not as nice to look at though. I attach my test script.
Yeah, it works. I updated my pu/kernel-cmdline-preseed to use this except
that I dropped one set of useless parenthesis (the one in the middle of
the stack).
And I added a comment explaining the regular expression as this:
# read this as
(single-word|var-name=("value"|'value'|unquoted-value))(space|EOL)
> BTW Should we actually be outputting the bits that contain no '=' for this?
> If not, we could just pipe into:
>
> grep =
I added this as well, although the shell code afterwards already skips
over if the value is determined to be empty.
Cheers,
--
Raphaël Hertzog ◈ Debian Developer
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