[ET Trac] [Einstein Toolkit] #1518: Replace internal expression parser with Piraha

[Einstein Toolkit]

#1518: Replace internal expression parser with Piraha
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  Reporter:  rhaas   |       Owner:  sbrandt            
      Type:  defect  |      Status:  reviewed_ok        
  Priority:  minor   |   Milestone:                     
 Component:  Cactus  |     Version:  development version
Resolution:          |    Keywords:  postrelease        
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Changes (by rhaas):

  * status:  review => reviewed_ok


Comment:

 I should have added that with the exceptions of the points raised above,
 the patch is fine to apply. There may be more of the "unsigned int" issues
 around, since the type is already in the files (originating from sometime
 around 2001, where I suspect size_t was indeed the same as unsigned int).

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1518#comment:26>
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