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From: Hans Hagen <pragma@wxs.nl>
To: ntg-context@ntg.nl
Subject: Re: Keyword order problem
Date: Fri, 06 Jun 2014 01:22:35 +0200	[thread overview]
Message-ID: <5390FBBB.5050107@wxs.nl> (raw)
In-Reply-To: <538E8A85.5080908@rik.users.panix.com>

On 6/4/2014 4:55 AM, Rik Kabel wrote:
> Keyword order appears to matter for the \blank command. The following
> example shows all orderings for the set  {dimension, nowhite, samepage},
> some of which work and some of which do not. It also shows two orderings
> of {dimension, nowhite, samepage, disable}; one works and the other does
> not. This happens with TL13 as well as the 2014-06-01 beta.
>
> I can find no discussion of keyword ordering in the wiki, on the mailing
> list, or in the manuals.

The command

\enabletrackers[vspacing.spacing]

Gives some insight in the processing order. Samepage is an option that 
changes the order (gravity) so it triggers a flush.

At some point I will redo part of that code (as it was written very 
early in the mkiv/luatex development) but not today.

> Is this intentional, and if so, with what other commands are keywords
> similarly constrained? Whether or not this is intentional, can a
> developer please provide a suggested ordering to use until this is
> better documented or corrected? The order that keywords are presented in
> the wiki and in the reference manual are among those that fail.
>
>     \starttext
>     \subject{Without disable}
>
>     12pt,samepage,nowhite\blank[12pt,samepage,nowhite]
>     works
>
>     12pt,nowhite,samepage\blank[12pt,nowhite,samepage]
>     fails
>
>     samepage,12pt,nowhite\blank[samepage,12pt,nowhite]
>     fails
>
>     samepage,nowhite,12pt\blank[samepage,nowhite,12pt]
>     works
>
>     nowhite,12pt,samepage\blank[nowhite,12pt,samepage]
>     works
>
>     nowhite,samepage,12pt\blank[nowhite,samepage,12pt]
>     works
>
>     \subject{With disable}
>
>     12pt,samepage,nowhite,disable\blank[12pt,samepage,nowhite,disable]
>     works
>
>     samepage,12pt,nowhite,disable\blank[samepage,12pt,nowhite,disable]
>     fails
>
>     \stoptext
>
>
>
> ___________________________________________________________________________________
> 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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If your question is of interest to others as well, please add an entry to the Wiki!

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      reply	other threads:[~2014-06-05 23:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-04  2:55 Rik Kabel
2014-06-05 23:22 ` Hans Hagen [this message]

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