[9fans] how to print a program

[9fans] how to print a program

[Rudolf Sykora]

Hello,

I want to 'print' the 'page' program, i.e. put /sys/src/cmd/page/* on paper.
I want different files start on new pages, with the header of every
page being the file name and the page.
For this the command
a=`{ls} pr $a | lp -dstdout > toprint.ps
is almost ok.
That 'almost' is in the fact that long lines get truncated, which is
highly undesirable.
fmt -j
could help, but it also replaces spaces and tabs by a single space, again bad.
(btw. why
fmt <>afile
doesn't work?)

So how?
Can anybody help? (I mean, is there a one-liner?)
Thank you!
Ruda

Re: [9fans] how to print a program

[Rudolf Sykora]

also, a nice feature of 'fmt' is that long lines are broken AND
indented according to the start of the just-being-processed line; this
is welcome...
R

On 7 September 2010 23:00, Rudolf Sykora <rudolf.sykora@gmail.com> wrote:
> Hello,
>
> I want to 'print' the 'page' program, i.e. put /sys/src/cmd/page/* on paper.
> I want different files start on new pages, with the header of every
> page being the file name and the page.
> For this the command
> a=`{ls} pr $a | lp -dstdout > toprint.ps
> is almost ok.
> That 'almost' is in the fact that long lines get truncated, which is
> highly undesirable.
> fmt -j
> could help, but it also replaces spaces and tabs by a single space, again bad.
> (btw. why
> fmt <>afile
> doesn't work?)
>
> So how?
> Can anybody help? (I mean, is there a one-liner?)
> Thank you!
> Ruda
>

Re: [9fans] how to print a program

[John Floren]

On Tue, Sep 7, 2010 at 5:00 PM, Rudolf Sykora <rudolf.sykora@gmail.com> wrote:
> Hello,
>
> I want to 'print' the 'page' program, i.e. put /sys/src/cmd/page/* on paper.
> I want different files start on new pages, with the header of every
> page being the file name and the page.
> For this the command
> a=`{ls} pr $a | lp -dstdout > toprint.ps
> is almost ok.
> That 'almost' is in the fact that long lines get truncated, which is
> highly undesirable.
> fmt -j
> could help, but it also replaces spaces and tabs by a single space, again bad.
> (btw. why
> fmt <>afile
> doesn't work?)
>
> So how?
> Can anybody help? (I mean, is there a one-liner?)
> Thank you!
> Ruda
>
>

Run it through cb before you print it and give cb a length argument. I
did basically this same thing just the other day.

John
--
"With MPI, familiarity breeds contempt. Contempt and nausea. Contempt,
nausea, and fear. Contempt, nausea, fear, and .." -- Ron Minnich

Re: [9fans] how to print a program

[erik quanstrom]

> (btw. why
> fmt <>afile
> doesn't work?)

sure it does.  fmt <>file will open file for
reading and writing on fd 0.  fd 1 will be your
terminal.  if you want fd1 to be the same channel,
you can add >[1=0], but this will not have the
intended effect in this case.  why is left as an
exercise.

- erik

Re: [9fans] how to print a program

[Rudolf Sykora]

> Run it through cb before you print it and give cb a length argument. I
> did basically this same thing just the other day.
>
> John

ok. this will be enough for now, I hope.
Nonetheless, generally, there may be not-c files present (other
languages...; even in my case there is a .ps file, which I still want
to be printed as text).
Is there anything of help then? Something that just folds long lines?
(Is awk line length-limited?)

Thanks!
Ruda

Re: [9fans] how to print a program

[erik quanstrom]

> (Is awk line length-limited?)

you can test stuff like this yourself:

; dd -if /dev/zero -bs 8192 -count 10 | tr '\0' 'x' | awk '{print length($1)}'
10+0 records in
10+0 records out
81920

- erik

Re: [9fans] how to print a program

[Rudolf Sykora]

> Run it through cb before you print it and give cb a length argument. I
> did basically this same thing just the other day.
>
> John

also, just note that cb doesn't always work even for c source:
running on /sys/src/cmd/page/gfx.c
produces crap...

thanks
ruda

Re: [9fans] how to print a program

[Lawrence E. Bakst]

At 8:25 AM +0200 9/8/10, Rudolf Sykora wrote:
>also, just note that cb doesn't always work even for c source:
>running on /sys/src/cmd/page/gfx.c
>produces crap...

cb has been a looser since I've known it, which is longer than most. It often dumped core, even back in the 70's. It's good in a pinch to turn someone's "far out" indenting style back to K&R normal form.

OTOH gofmt is more of the real deal done right.

My advise is to stick with pr and deal with truncated lines. If you can't deal with truncated lines try landscape mode or messing with fonts and sizes if that's possible. If you have access to another platform enscript has lots of bells and whistles for doing what you want.

It's probably time to move past "lp". They don't exist much anymore in the real world.

leb
--
leb@iridescent.org

Re: [9fans] how to print a program

[roger peppe]

i've always used an ancient version of a2ps for this,
ported to plan 9 by forsyth@terzerima.net. this does almost
everything i want (in particular two-column landscape mode)
with the exception that it doesn't
grok utf-8. i'm sure charles will send you a copy
if you wish.

the current gnu version is likely to be a little harder
to port :-)


On 7 September 2010 22:00, Rudolf Sykora <rudolf.sykora@gmail.com> wrote:
> Hello,
>
> I want to 'print' the 'page' program, i.e. put /sys/src/cmd/page/* on paper.
> I want different files start on new pages, with the header of every
> page being the file name and the page.
> For this the command
> a=`{ls} pr $a | lp -dstdout > toprint.ps
> is almost ok.
> That 'almost' is in the fact that long lines get truncated, which is
> highly undesirable.
> fmt -j
> could help, but it also replaces spaces and tabs by a single space, again bad.
> (btw. why
> fmt <>afile
> doesn't work?)
>
> So how?
> Can anybody help? (I mean, is there a one-liner?)
> Thank you!
> Ruda
>
>

Re: [9fans] how to print a program

[Federico G. Benavento]

steve has a fold program which he used combined with pr to generate
http://plan9.bell-labs.com/sources/contrib/steve/doc/kernel-june2k-a4.ps

/n/sources/contrib/steve/rc/kernel.print
/n/sources/contrib/steve/fold.tbz

On Wed, Sep 8, 2010 at 8:45 AM, roger peppe <rogpeppe@gmail.com> wrote:
> i've always used an ancient version of a2ps for this,
> ported to plan 9 by forsyth@terzerima.net. this does almost
> everything i want (in particular two-column landscape mode)
> with the exception that it doesn't
> grok utf-8. i'm sure charles will send you a copy
> if you wish.
>
> the current gnu version is likely to be a little harder
> to port :-)
>
>
> On 7 September 2010 22:00, Rudolf Sykora <rudolf.sykora@gmail.com> wrote:
>> Hello,
>>
>> I want to 'print' the 'page' program, i.e. put /sys/src/cmd/page/* on paper.
>> I want different files start on new pages, with the header of every
>> page being the file name and the page.
>> For this the command
>> a=`{ls} pr $a | lp -dstdout > toprint.ps
>> is almost ok.
>> That 'almost' is in the fact that long lines get truncated, which is
>> highly undesirable.
>> fmt -j
>> could help, but it also replaces spaces and tabs by a single space, again bad.
>> (btw. why
>> fmt <>afile
>> doesn't work?)
>>
>> So how?
>> Can anybody help? (I mean, is there a one-liner?)
>> Thank you!
>> Ruda
>>
>>
>
>



--
Federico G. Benavento

Re: [9fans] how to print a program

[erik quanstrom]

> cb has been a looser since I've known it,
> which is longer than most. It often dumped core,
> even back in the 70's. It's good in a pinch to turn
> someone's "far out" indenting style back to K&R normal form.

loose programs, loose women.  each to his
own vice.

- erik

Re: [9fans] how to print a program

[Akshat]

On Sep 8, 2010, at 12:08 AM, "Lawrence E. Bakst" <ml@iridescent.org>
wrote:
> It's probably time to move past "lp". They don't exist much anymore
> in the real world.

Sorry, how is this formatting issue
the fault of 'lp', exactly?

ak

Re: [9fans] how to print a program

[Charles Forsyth]

> It's probably time to move past "lp". They don't exist much anymore
> in the real world.

has anyone ported CUPS? i just wanted to check whether someone should be burnt at the stake.