[9fans] troff: references

[9fans] troff: references

[Rudolf Sykora]

Hello,

is there anything ready for troff/eqn that could help me with
1) automatic equation numbering with possible setting a label to an
equation by means of which one could forward/backward reference the
equation?
2) setting a label somewhere in the text, so one can reference it and
obtain e.g. a page on which the label is?

Thanks
Ruda

Re: [9fans] troff: references

[Benn Newman]

On Thu, 23 Jul 2009 22:13:50 +0200, rudolf.sykora@gmail.com wrote:
> Hello,
>
> is there anything ready for troff/eqn that could help me with
> 1) automatic equation numbering with possible setting a label to an
> equation by means of which one could forward/backward reference the
> equation?
> 2) setting a label somewhere in the text, so one can reference it and
> obtain e.g. a page on which the label is?
>
> Thanks
> Ruda
>

Hello

I am not aware of anything specificallyto meet your need, but I can get you started.

To automatically number equations:
	.nr En 0 1 \" En: equation number, 0: starting number, 1: auto-incrementer
	.EQ "" \n+(En
	e = m c sup 2
	.EN
	.am EQ \" This will print the equation number and page number to stderr
	.tm eqn: \\$2	\\n%
	..

See CSTR 128, `Tools for Printing Indexes' by Jon Bentley and bwk,
particularly section 2., `Typical Use' <http://www.kohala.com/start/troff/cstr128.ps>.

Then you would have a macro, .En equation-number, that would use the label in t.out and match it with its page number using a preprocessor.

Then mix this all up to do exactly what you want to do.
--
Benn Newman

Re: [9fans] troff: references

[Darren Bane]

On 2009-07-23 21:17:27 +0100, rudolf.sykora@gmail.com (Rudolf Sykora) said:

> Hello,
>
> is there anything ready for troff/eqn that could help me with
> 1) automatic equation numbering with possible setting a label to an
> equation by means of which one could forward/backward reference the
> equation?
> 2) setting a label somewhere in the text, so one can reference it and
> obtain e.g. a page on which the label is?
>
> Thanks
> Ruda

lbl from
http://www.ugu.com/sui/ugu/show?I=software.roff&F\x1111111111&G=Y worked
quite well for me in the past on UNIX. It's not a lot of code, so
hopefully will compile without much trouble in APE.
--
Darren Bane
White Acorn Software

Re: [9fans] troff: references

[cej]

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> lbl from 
> http://www.ugu.com/sui/ugu/show?I=ftware.roff&F\x1111111111&G=worked 

http://www.ugu.com/pub/unix/sec1/lbl.tar.Z

++pac

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Re: [9fans] troff: references

[Francisco J Ballesteros]

Just to check out...

Anyone
writing spanish documents using troff on Plan 9?

If so, please, drop me a line off-list.
It's likely we have similar problems :)

thanks

On Mon, Jul 27, 2009 at 12:26 PM, <cej@gli.cas.cz> wrote:
>
>> lbl from
>> http://www.ugu.com/sui/ugu/show?I=ftware.roff&F 11111111&G=worked
>
> http://www.ugu.com/pub/unix/sec1/lbl.tar.Z
>
> ++pac
>