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

Hans Hagen pragma at wxs.nl
Mon Jan 27 19:53:33 CET 2014

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)


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