Iterate through a directory

Iterate through a directory

[Keith McKay]

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Colleagues

I'm preparing a booklet of figures which are stored in a directory, 
however their is no structure in their naming.  I could go through them 
all and rename them along the lines of Pict1.jpg, Pict2.jpg etc and 
\dostepwiserecurse as in the example below


\setupexternalfigures [directory={/a/directory}]
\starttext
\dostepwiserecurse{1}{10}{1}
{
\externalfigure[Pict\recurselevel.jpg]
}
  \stoptext

However, I was wondering if was possible to iterate through the 
directory using a wildcard and have something like

\externalfigure[*.jpg}

to make it generic, or would I have to use lua.

Best Wishes
Keith

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Re: Iterate through a directory

[Hans Hagen]

On 7/4/2016 5:52 PM, Keith McKay wrote:
> Colleagues
>
> I'm preparing a booklet of figures which are stored in a directory,
> however their is no structure in their naming.  I could go through them
> all and rename them along the lines of Pict1.jpg, Pict2.jpg etc and
> \dostepwiserecurse as in the example below
>
>
> \setupexternalfigures [directory={/a/directory}]
> \starttext
> \dostepwiserecurse{1}{10}{1}
> {
> \externalfigure[Pict\recurselevel.jpg]
> }
>  \stoptext
>
> However, I was wondering if was possible to iterate through the
> directory using a wildcard and have something like
>
> \externalfigure[*.jpg}
>
> to make it generic, or would I have to use lua.

\startluacode

for _, name in ipairs(dir.glob("*.jpg")) do
     context.externalfigure { name }
end

\stopluacode

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

Re: Iterate through a directory

[Keith McKay]

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Thanks Hans I'll give it a try.

Best Wishes

Keith


On 04/07/2016 17:30, Hans Hagen wrote:
> On 7/4/2016 5:52 PM, Keith McKay wrote:
>> Colleagues
>>
>> I'm preparing a booklet of figures which are stored in a directory,
>> however their is no structure in their naming.  I could go through them
>> all and rename them along the lines of Pict1.jpg, Pict2.jpg etc and
>> \dostepwiserecurse as in the example below
>>
>>
>> \setupexternalfigures [directory={/a/directory}]
>> \starttext
>> \dostepwiserecurse{1}{10}{1}
>> {
>> \externalfigure[Pict\recurselevel.jpg]
>> }
>>  \stoptext
>>
>> However, I was wondering if was possible to iterate through the
>> directory using a wildcard and have something like
>>
>> \externalfigure[*.jpg}
>>
>> to make it generic, or would I have to use lua.
>
> \startluacode
>
> for _, name in ipairs(dir.glob("*.jpg")) do
>     context.externalfigure { name }
> end
>
> \stopluacode
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------
> ___________________________________________________________________________________ 
>
> 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!

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
___________________________________________________________________________________