[tex-hyphen] [lltx] [luatex] towards non-standard hyphenation support in LuaTeX

[Hans Hagen]

On 1/27/2014 7:01 PM, Stephan Hennig wrote:
> Am 27.01.2014 15:33, schrieb Stephan Hennig:
>
>> But one thing to consider for such iterators:
>
> Another thing, the iterator should be robust in the sense that a user
> can replace first and last node of the current word, e.g., during
> ligature building.
>
> There can even be times when a manipulation needs to change nodes
> outside the current word, e.g., insert a node before the first or after
> the last node of a word.  For that reason, when returning two word nodes
> n1,n2, the iterator should not save n2.next in the state, but rather the
> next node returned as n1.  That way, on could insert/replace inter-word
> nodes without wrecking havoc.

in most cases writing node list manipulation code in lua is efficient 
enough (the average page has only a couple of thousands nodes) so then 
you have control over that; the more is hardcoded, the more you have to 
fight (complex macros at the tex end can be more of a bottleneck)

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------