[ET Trac] [Einstein Toolkit] #1924: piraha contains code for expanding arbitrary variables

[Einstein Toolkit]

#1924: piraha contains code for expanding arbitrary variables
-------------------------+--------------------------------------------------
 Reporter:  rhaas        |       Owner:                     
     Type:  enhancement  |      Status:  new                
 Priority:  optional     |   Milestone:                     
Component:  Cactus       |     Version:  development version
 Keywords:  Piraha       |  
-------------------------+--------------------------------------------------
 line 369 of piraha's Call.cc contains code:
 {{{
     nm_iter iter = variables.find(gr->group(0)->substring());
     if(iter != variables.end()) {
         ret = iter->second;
     }
 }}}
 that would seem to allow arbitrary variable names to be expanded to
 values. However piraha does not let me assign values to these variables
 anymore as the only allowed assignments are "ActiveThorns = ..." and
 "thorn::par = ...".

 So either there is code to support no longer allowed operations or there
 is a lack of documentation on how to set variable values for later use by
 {{{$varname}}}.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1924>
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