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Re: [Groff] PDFPIC macro
From: |
Keith Marshall |
Subject: |
Re: [Groff] PDFPIC macro |
Date: |
Thu, 18 Sep 2014 00:22:01 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.0 |
On 17/09/14 22:22, Peter Schaffter wrote:
> On Wed, Sep 17, 2014, Steffen Nurpmeso wrote:
>> I'm not in the position to say something to PDFPIC today (direct
>> support would be pretty cool!), but there should be general tools
>> for sh(1) (perl(1)...) that can be included in a defined way and
>> used. I.e., roff "libraries".
>>
>> And the very same is true for generic use of external commands, as
>> is used by you, and what came to my mind immediately when reading:
>>
>> . sy pdfinfo @$1 | \
>> grep "Page *size" | \
>> sed -e 's/Page *size: *\\([[:digit:].]*\\) *x *\\([[:digit:].]*\\).*$/\
>> .nr pdf-wid (p;\\1)\\n\
>> .nr pdf-ht (p;\\2)/' \
>> > /tmp/pdfpic\n[$$]
>>
>> For example here. There should be a way to safely generate
>> temporary file names in the temporary directory that is currently
>> used, whatever this is (most likely $TMPDIR).
>
> Yes. The way groff stands now, I'm uneasy relying on external tools
> and .sy for anything but local, user-written macros. There's precedent,
> though, in www.tmac (PIMG), and this seems to be the best solution
> for PDF images.
Do note, however, that this will compromise portability; e.g. pdfinfo is
unlikely to be supported on MS-Windows hosts. Also, since .sy is an
intrinsically unsafe request, any macro which relies on it *must* be
invoked in unsafe mode, and users should rightly be wary of enabling
that, for untrusted sources.
--
Regards,
Keith.
- [Groff] PDFPIC macro, Peter Schaffter, 2014/09/17
- Re: [Groff] PDFPIC macro, Bernd Warken, 2014/09/17
- Re: [Groff] PDFPIC macro, Steffen Nurpmeso, 2014/09/17
- Re: [Groff] PDFPIC macro, Peter Schaffter, 2014/09/17
- Re: [Groff] PDFPIC macro,
Keith Marshall <=
- Re: [Groff] PDFPIC macro, Steffen Nurpmeso, 2014/09/18
- Re: [Groff] PDFPIC macro, Peter Schaffter, 2014/09/18
- Re: [Groff] PDFPIC macro, Deri James, 2014/09/18
- Re: [Groff] PDFPIC macro, Keith Marshall, 2014/09/18
- Re: [Groff] PDFPIC macro, Deri James, 2014/09/18
- Re: [Groff] PDFPIC macro, Keith Marshall, 2014/09/20
- Re: [Groff] PDFPIC macro, Keith Marshall, 2014/09/20
- Re: [Groff] PDFPIC macro, Werner LEMBERG, 2014/09/21
- Re: [Groff] PDFPIC macro, Deri James, 2014/09/21
- Re: [Groff] PDFPIC macro, Ted Harding, 2014/09/21