[NTG-context] new upload - matching gimmick

11 Aug 2020

      Hi,

For those who like playing around you can use lua pettern matching in a 
match loop:

\starttext

\doloopovermatch
     {(\letterpercent w+) *(\letterpercent w*)}
     {aa bb cc dd}
     {
       [
         \doloopovermatch
           {(\letterpercent w)(\letterpercent w)}
           {#1}
           {(##1 ##2)}
         \doloopovermatch
           {(\letterpercent w)(\letterpercent w)}
           {#2}
           {(##1 ##2)}
       ]
     }

\blank

\doloopovermatch
   {(\letterpercent d+)}
   {this 1 is 22 a 333 test}
   { [#1] }

\blank

\doloopovermatch
     {(.-)\letterpercent{\bf (.-)\letterpercent}(.*)}
     {this is {\bf a} test}
     {#1{\it not #2}#3}

\blank

\doloopovermatch
   {([\letterpercent w]+)}
   {\cldloadfile{tufte.tex}}
   { [#1] }

\stoptext

Probably not that useful (I never needed it but that doesn't say much) 
but it fits in the repertoire of loops.

Hans

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