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Evaluate a string as a variable name [message #70731]

Mon, 03 May 2010 15:02

laurel
Messages: 3
Registered: June 2005

Junior Member

I have a structure that has multiple name/value pairs, and I want to
extract the value that corresponds with the name. However, I am only
passing in a string of the name, not the structure.name, so I need a
way to combine the two such that I am evaluating the string. It might
be easier to explain with an example:

***
;create a simple structure
struct={name1:9, $
name2:5, $
name3:1}

;variable that matches the part of the structure I want
x='name2'

;create a string that if it were a variable, it would be part of the
structure, 'struct.name2'
y='struct'+'.'+x

;want to have z=5, or z=struct.name2 rather than z='struct.name2'
;Here evaluate stands in for whatever I would do to make that happen
z=evaluate(y)
***

Does anyone know how to make z equal to the value corresponding with
struct.name2?

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Evaluate a string as a variable name

By: laurel on Mon, 03 May 2010 15:02

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