[NTG-context] structureuservariable as list

[Hans Hagen]

On 2/24/2023 11:37 PM, Rik Kabel via ntg-context wrote:
> 
>> Hi,
>>
>> is it possible to pass a list in a variable? I'd like to pass a list 
>> of authors:
>>
>>
>> \startchapter[title={Foo Bar}][authors={Alice, Bob}]
>>
>> % PSEUDOCODE
>> % for author in \structureuservariable{authors}
>> % do print(author + '\crlf')
>> % done
>>
>> \stopchapter
>>
>>
> Search the wiki. Look for "Comma Separated Lists." There is a variant 
> with an author list as an example.
> 
> You may need additional brace levels around the list entries.
I'm not sure this is on the wiki ...

\starttext

\startchapter[title={Foo Bar}][authors={Alice, Bob},AUTHORS={Bob,Alice}]

     \doloopovermatch {[^, ]+} {\structureuservariable{authors}}  {
         (#1)\crlf
     }
     \doloopovermatch {[^,]+} {\structureuservariable{authors}}  {
         (#1)\crlf
     }
     \doloopovermatch {[^,]+} {\structureuservariable{AUTHORS}}  {
         (#1)\crlf
     }
     \doloopovermatch {[^,]+} {\structureuservariable{AUTHORS}}  {
         \doloopovermatch {.} {#1}  {
             (##1)
         }
         \crlf
     }

\stopchapter

but feel free to add it.

Hans

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