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Postings from September 2021
* Dan Book <grinnz@gmail.com> [2021-09-29 15:12:53 -0400]: > On Wed, Sep 29, 2021 at 2:55 PM Oodler 577 via perl5-porters < > perl5-porters@perl.org> wrote: > > > * Scott Baker <scott@perturb.org> [2021-09-29 08:37:57 -0700]: > > > > > On 9/29/21 08:21, Dan Book wrote: > > > > On Wed, Sep 29, 2021 at 11:00 AM Tomasz Konojacki <me@xenu.pl> wrote: > > > > > > > > "-0777" flag is the usual way to read the whole file at once > > > > (instead of > > > > line by line) in one-liners. > > > > > > > > I feel this isn't ideal. "-0" is a bad flag. It's overly general, > > > > users > > > > rarely need $/ to be set to anything other than undef or "\n". > > > > Also, the > > > > input record separator has to be specified as an octal number, > > > > which is > > > > weird. The fact that the numbers above 0o377 are special-cased to > > mean > > > > "undef" makes it even more confusing. > > > > > > > > Slurping is an extremely common operation and it deserves its own > > > > one-letter flag. I propse "-g" (mnemonics: gobble, grab, gulp). I > > wish > > > > it could be "-s", but sadly it's already taken :( > > > > > > > > > > > > I think this is an excellent idea. This sort of processing using Perl > > > > oneliners is extremely common and spread across the internet, and the > > > > '-0777' flag is a constant source of confusion. Ideally perl would have > > > > support for long options so we didn't have to take up the dwindling > > > > one-letter options, but in the meantime, they are not in high demand so > > > > IMO it's fine to use one for this. > > > > Seems like anything would need to consider also -n and -l, any others? I'm > > not > > a perl oneliner wizard by any means, but these two came up in my google. > > > > -0777 interacts with these options in a reasonable and expected way, and > the proposed -g would do the same. If it's going to be equivalent to "-0777", which directly impacts the record separator, then "-R" is probably better. None of the mnemonics proposed to fit with "-g" are common parlance. It's also associated with creating executables containing extra-stuff for debuggers in gcc. That seems it could be helpful at some point for actual debugging, or at least seems a little dissonant for cli jockies. Then again, the general move towards long opts would make it pretty easy to do something like "--record-separator|--slurp". So it seems to me that supporting long opts is probably the real "ask". Brett > > -Dan -- -- oodler@cpan.org oodler577@sdf-eu.org SDF-EU Public Access UNIX System - http://sdfeu.org irc.perl.org #openmp #pdl #nativeThread Previous | Thread Next