From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: Philipp Gesang <pgesang@ix.urz.uni-heidelberg.de>
Subject: Re: requesting multipass
Date: Tue, 27 Apr 2010 23:47:03 +0200 [thread overview]
Message-ID: <4BD75B57.6000907@wxs.nl> (raw)
In-Reply-To: <20100427210957.GA3705@aides>
On 27-4-2010 11:09, Philipp Gesang wrote:
> On 2010-04-27<20:02:27>, Hans Hagen wrote:
>> On 27-4-2010 5:04, Philipp Gesang wrote:
>>> Hi all,
>>>
>>>
>>> how do I trigger another pass?
>>>
>>> Using md5 and io I want to save data to a helper file and reuse it in a
>>> second pass (like e.g. mtx-context.lua) or update the file if
>>> appropriate. But I couldn't quite figure out how to request another pass
>> >from the lua end.
>>
>> there's
>>
>> jobfiles.run(
>> "filename-to-be-checked",
>> "command-to-be-executed-if-changed"
>> )
>
> Good evening, Hans!
>
>
> Let me clarify my intention a bit: jobfiles.run calls "context" on the
> argument list, but that is not what I need.
>
> My problem is that I generate stuff during the tex run and want to
> collect it in a table that is saved to a file at the end of the run.
> This data is hashed at the beginning of the document and if the hash
> does not match the end-run hash _or_ the file doesn't exist in the first
> place, then I'd like to run another independent pass.
>
> (I guess I could use jobfiles.run to process \jobname at the very end of
> the document but would have to handle recursion somehow.)
so, as you save your data in a file, just after saving the table, hash
that file:
\starttext
test
\startluacode
jobvariables.tobesaved.MyPersonalChecksum = file.checksum("MyName")
or "no checksum"
\stopluacode
\stoptext
the context runner will take care of extra runs then.
(I'll think about a more robust user space for such status variables but
as long as you use UpperCased names you quite safe.)
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next prev parent reply other threads:[~2010-04-27 21:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-27 15:04 Philipp Gesang
2010-04-27 18:02 ` Hans Hagen
2010-04-27 21:09 ` Philipp Gesang
2010-04-27 21:47 ` Hans Hagen [this message]
2010-04-29 20:53 ` Philipp Gesang
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