I was reading the Sed question to the list in the archives (sorry, still
not re-subscribed :) and Padraig's answer, which is no good...
John A. Kinsella wrote:
> I'd like to do a simple conversion
> s/Maple 8/Maple 9/g
> in a bunch of Maple *.mws files using sed.
> Is there a way to tell sed to do the substitution while preserving the
> line breaks (which Maple seems to need).
There is, but it's a mess. The problem is that sed's buffer only stores
lines, usually. You need to use G and H to add the current line to the
stored pattern buffer, and retrieve it. It's all a big mess...
But here goes a try...
sed -e '
The D is the trick - since there'll be stuff left in the pattern buffer
every time until the last, it restarts without automatically dumpling
the pattern buffer, and without reading a new line. We dump and read
explicitly with P and N respectively. Then when N fails, sed does what
it always does, prints the pattern space (the last line) and quits.
I thought \19 might cause a problem, but apparrently sed does the right
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