[NTG-context] lua tables - how do you cope?

Hans Hagen pragma at wxs.nl
Sun Jul 31 00:28:18 CEST 2016


On 7/30/2016 3:04 PM, Joseph Canedo wrote:
> If the requirement is to iterate on a table having the keys, values
> sorted by key (assuming the keys can be sorted), there are ways to do
> this. Please see http://lua-users.org/wiki/SortedIteration for an
> example (this just replaces pairs(t) with orderedPairs(t)).

or just in context

for k, v in table.sortedhash(t)
   print(k,v)
end

btw,

mtxrun --script foo.lua

has all that on board as well

>
>
> Hope this helps
>
>
>
> Joseph
>
>
>
> *De : *Schmitz Thomas A. <mailto:thomas.schmitz at uni-bonn.de>
> *Envoyé le :*samedi 30 juillet 2016 12:21
> *À : *mailing list for ConTeXt users <mailto:ntg-context at ntg.nl>
> *Objet :*[NTG-context] lua tables - how do you cope?
>
>
>
> This is less a specific question about ConTeXt than a hope for good
> advice: I’m maltreating my xml files with a mixture of TeX and Lua. I
> want to extract and typeset information in different forms, so I first
> collect everything in lua tables, rearrange and order these tables and
> typeset the results. All fine and dandy. My problem is that I have to
> have tables within tables within tables… you get the picture. One aspect
> of Lua that is really bugging me is the fact that associative tables
> have no order, which can be a pain in the butt for this kind of
> operation. So I have to be careful that I have to use constructs that
> will keep the order in which items have been added and loop through them
> via ipairs() instead of pairs(). I find it difficult to keep track of
> what’s inside my layers upon layers of tables. So my question is: how do
> those of you who are more experienced with this kind of question
> proceed? Do you have any handy tool to visualize a table? Any tips you
> want to share?
>
>
>
> Thanks a lot!
>
>
>
> Thomas
>
> ___________________________________________________________________________________
>
> If your question is of interest to others as well, please add an entry
> to the Wiki!
>
>
>
> maillist : ntg-context at 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
>
> ___________________________________________________________________________________
>
>
>
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context at 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
> ___________________________________________________________________________________
>


-- 

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


More information about the ntg-context mailing list