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MathGroup Archive 2002

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MakeExpression

  • To: mathgroup at smc.vnet.net
  • Subject: [mg33613] MakeExpression
  • From: Dustin Vink <d.vink at mech.gla.ac.uk>
  • Date: Wed, 3 Apr 2002 18:08:18 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Dear Reader,

Consider the following Mathematica problem. How does one incorporate
pattern matching conditions with the command MakeExpression?

The following does NOT work:

MakeExpression[RowBox[{a_Plus, "[", b__, "]"}], StandardForm] := 
  MakeExpression[a, StandardForm]

Any form of condition used at the lhs seems to be ignored.




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