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From: Philipp Gesang <gesang@stud.uni-heidelberg.de>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: [callbacks] proper registration, node subtypes
Date: Mon, 25 Jun 2012 16:50:31 +0200	[thread overview]
Message-ID: <20120625145031.GC31738@phlegethon> (raw)
In-Reply-To: <4FE87402.3000708@wxs.nl>


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···<date: 2012-06-25, Monday>···<from: Hans Hagen>···

> On 25-6-2012 15:39, Philipp Gesang wrote:
> 
> >   - Does the difference wrt node subtype matter assuming I only
> >     (a) copy glyph nodes and (b) manipulate their .char field?
>
> not that much, it's just a state signal for font processing

Good to know.

> >Any insights on this matter would be greatly appreciated. Regards
> >Philipp
> 
> it all depends on what you want to do

Traverse the node list of a paragraph before line break from head
to tail in sequential order, recursing into sublists where they
appear. The callback removes and inserts nodes: which ones
depends on the nodes already processed (has a state).

Using the previous example code,

  \startfoo
    a\hbox{b}c
  \stopfoo

should result in the traversal <glyph a>, <hlist ...>, <glyph c>.

Philipp

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  reply	other threads:[~2012-06-25 14:50 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-25 13:39 Philipp Gesang
2012-06-25 14:21 ` Hans Hagen
2012-06-25 14:50   ` Philipp Gesang [this message]
2012-06-26 11:13     ` Hans Hagen
2012-06-26 12:08       ` Philipp Gesang
2012-06-26 12:50         ` Hans Hagen

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