Idiomatic write

ruby-talk
1

And doesn’t this secretly generate a tempfile in the process?

Could the OP be looking for something like mmap? (see RAA)

Regards,

Dan

···

-----Original Message-----
From: Tim Hammerquist [mailto:tim@vegeta.ath.cx]

In Ruby, I could do the same thing, slurp the file into a
string and then
write it back again. I was wondering if there’s a more
idiomatic way of
doing it, in place, i.e., edit the file straight away.
This could probably
be more practical when the file to be edited is a huge one…

Any pointers(sic)…

% ruby -i~ -pe ‘gsub(/pattern/, “replace”)’ myfile

Does this work if /pattern/ spans lines?

Tim Hammerquist

2

It does generate a secret tempfile, but the original poster MIGHT
just have wanted to not have to create one himself and be responsible
for cleaning it up, which this does.

···

— “Berger, Daniel” djberge@qwest.com wrote:

-----Original Message-----
From: Tim Hammerquist [mailto:tim@vegeta.ath.cx]

In Ruby, I could do the same thing, slurp the file into a
string and then
write it back again. I was wondering if there’s a more
idiomatic way of
doing it, in place, i.e., edit the file straight away.
This could probably
be more practical when the file to be edited is a huge one…

Any pointers(sic)…

% ruby -i~ -pe ‘gsub(/pattern/, “replace”)’ myfile

Does this work if /pattern/ spans lines?

Tim Hammerquist

And doesn’t this secretly generate a tempfile in the process?

Could the OP be looking for something like mmap? (see RAA)

=====

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