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Bill Allombert on Mon, 09 Sep 2024 23:35:43 +0200
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Re: [PATCH 2.16.2-beta] compressed input
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- To: pari-dev@pari.math.u-bordeaux.fr
- Subject: Re: [PATCH 2.16.2-beta] compressed input
- From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
- Date: Mon, 9 Sep 2024 23:35:35 +0200
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- In-reply-to: <Zt2VCKUALsEMjXFf@seventeen>
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On Sun, Sep 08, 2024 at 02:14:02PM +0200, Bill Allombert wrote:
> On Thu, Aug 29, 2024 at 05:54:39PM -0700, Ilya Zakharevich wrote:
> > This patch
> > • allows newer types of compression of input;
> > • protects against poison pills in the decompression command line.
> >
> > Enjoy,
> > Ilya
> >
> > +typedef struct
> > +{
> > + char *ext;
> > + char *cmd;
> > +} decompress_tbl;
> > +decompress_tbl decompress[] = {
> > +#ifdef ZCAT
> > + {".Z", ZCAT},
> > +#ifdef GZCAT
> > + {".gz", ZCAT},
> > +#endif /* defined GZCAT */
> > +#endif /* defined ZCAT */
> > + {".bz2", "bzip2 -dc"},
> > + {".xz", "xz -dc"},
> > + {".zstd", "zstd -dc"},
> > + {".7z", "7za -so e"},
> > + {".zip", "unzip -p"},
> > + {NULL, NULL}
> > +};
>
> You could also add lzma, lz and lzop.
> Someone should really write a tool that provide consistent interface to all those.
> PARI/GP is not the place to do it...
I found some: zutils
https://download.savannah.gnu.org/releases/zutils/
This provide an universal zcat. (Also exist acat and bsdcat)
However, we need a way to tell GP which extensions denote compressed files.
Mayeb we just need to add a new default ?
Cheers,
Bill.