* Howto use the lua io.read() function only in the first context run?
@ 2016-03-15 20:04 Romain Diss
2016-03-15 21:55 ` Hans Hagen
0 siblings, 1 reply; 5+ messages in thread
From: Romain Diss @ 2016-03-15 20:04 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi all,
I want to write a cld document with some data read on the standard
input. I'm using the lua io.read() function but it's launched at every
context passes (depending on the case, it is launched 2 to 3 times).
-- Minimum not working example
local name = io.read()
context.startdocument()
context("Hello " .. name)
context.stopdocument()
Thanks in advance.
--
Romain Diss
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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Howto use the lua io.read() function only in the first context run?
2016-03-15 20:04 Howto use the lua io.read() function only in the first context run? Romain Diss
@ 2016-03-15 21:55 ` Hans Hagen
2016-03-16 21:47 ` Romain Diss
0 siblings, 1 reply; 5+ messages in thread
From: Hans Hagen @ 2016-03-15 21:55 UTC (permalink / raw)
To: mailing list for ConTeXt users
On 3/15/2016 9:04 PM, Romain Diss wrote:
> Hi all,
>
> I want to write a cld document with some data read on the standard
> input. I'm using the lua io.read() function but it's launched at every
> context passes (depending on the case, it is launched 2 to 3 times).
>
> -- Minimum not working example
> local name = io.read()
> context.startdocument()
> context("Hello " .. name)
> context.stopdocument()
you can test for environment.arguments.currentrun being "1"
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Howto use the lua io.read() function only in the first context run?
2016-03-15 21:55 ` Hans Hagen
@ 2016-03-16 21:47 ` Romain Diss
2016-03-17 8:11 ` Andreas Schneider
2016-03-17 12:41 ` Hans Hagen
0 siblings, 2 replies; 5+ messages in thread
From: Romain Diss @ 2016-03-16 21:47 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi,
Le 15/03/2016, Hans Hagen a écrit
> On 3/15/2016 9:04 PM, Romain Diss wrote:
> >I want to write a cld document with some data read on the standard
> >input. I'm using the lua io.read() function but it's launched at every
> >context passes (depending on the case, it is launched 2 to 3 times).
> >
> >-- Minimum not working example
> >local name = io.read()
> >context.startdocument()
> >context("Hello " .. name)
> >context.stopdocument()
>
> you can test for environment.arguments.currentrun being "1"
Thank you Hans... but it doesn't fully work. Now I only enter the input
once (that's ok) but on the second run, the variable is not defined
anymore. How can I keep it in the conTeXt memory?
-- Minimum still not working example
local name
if environment.arguments.currentrun == "1" then io.read() end
context.startdocument()
context("Hello " .. name)
context.stopdocument()
All the best
--
Romain Diss
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Howto use the lua io.read() function only in the first context run?
2016-03-16 21:47 ` Romain Diss
@ 2016-03-17 8:11 ` Andreas Schneider
2016-03-17 12:41 ` Hans Hagen
1 sibling, 0 replies; 5+ messages in thread
From: Andreas Schneider @ 2016-03-17 8:11 UTC (permalink / raw)
To: mailing list for ConTeXt users
Am 2016-03-16 22:47, schrieb Romain Diss:
> Hi,
>
> Thank you Hans... but it doesn't fully work. Now I only enter the input
> once (that's ok) but on the second run, the variable is not defined
> anymore. How can I keep it in the conTeXt memory?
>
> -- Minimum still not working example
> local name
> if environment.arguments.currentrun == "1" then io.read() end
> context.startdocument()
> context("Hello " .. name)
> context.stopdocument()
>
> All the best
You can use the LUA interface "job.passes".
In the first pass, you store your value. For example:
local passdata = job.passes.define("mystuff") --I usually define this at
the top of my script and reuse it.
passdata["somevalue"] = "hello world";
Then in the subsequent runs you can access
local lastpassdata = job.passes.getcollected("mystuff") --Same here...
print(lastpassdata["somevalue"])
Best regards,
Andreas
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Howto use the lua io.read() function only in the first context run?
2016-03-16 21:47 ` Romain Diss
2016-03-17 8:11 ` Andreas Schneider
@ 2016-03-17 12:41 ` Hans Hagen
1 sibling, 0 replies; 5+ messages in thread
From: Hans Hagen @ 2016-03-17 12:41 UTC (permalink / raw)
To: ntg-context
On 3/16/2016 10:47 PM, Romain Diss wrote:
> Hi,
>
> Le 15/03/2016, Hans Hagen a écrit
>> On 3/15/2016 9:04 PM, Romain Diss wrote:
>>> I want to write a cld document with some data read on the standard
>>> input. I'm using the lua io.read() function but it's launched at every
>>> context passes (depending on the case, it is launched 2 to 3 times).
>>>
>>> -- Minimum not working example
>>> local name = io.read()
>>> context.startdocument()
>>> context("Hello " .. name)
>>> context.stopdocument()
>>
>> you can test for environment.arguments.currentrun being "1"
btw, there's also
if tex.systemmodes["first"] then
> Thank you Hans... but it doesn't fully work. Now I only enter the input
> once (that's ok) but on the second run, the variable is not defined
> anymore. How can I keep it in the conTeXt memory?
>
> -- Minimum still not working example
> local name
> if environment.arguments.currentrun == "1" then io.read() end
> context.startdocument()
> context("Hello " .. name)
> context.stopdocument()
jobvariables.save("SomeName",value)
jobvariables.restore("SomeName")
beware, this also creates \SomeName
Hans
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
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2016-03-15 20:04 Howto use the lua io.read() function only in the first context run? Romain Diss
2016-03-15 21:55 ` Hans Hagen
2016-03-16 21:47 ` Romain Diss
2016-03-17 8:11 ` Andreas Schneider
2016-03-17 12:41 ` Hans Hagen
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