[clean-list] Passing functions through command line

[Willer Alves]

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I've done a simple program like this:

module test
import StdEnv

pi :== 3.14159

Start = map equation [0.0,pi/2.0,pi,3.0*pi/2.0,2.0*pi]

equation x = (sin x)+(cos x)

And obviously it's worked.
But now, I want to pass the function (for example, (sin x)+(cos x)) through the command line. So, I could apply any function in that list without recompiling the program, for example, calling that as 
\>test ((tan x)-pi)
I know that getCommandLine will return the function as a String. So, how could I handle this String to apply the function in the list?

Thank you all!

Willer Alves
Brazil


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I've done a simple program like this:


module test
import StdEnv

pi :== 3.14159

Start = map equation [0.0,pi/2.0,pi,3.0*pi/2.0,2.0*pi]

equation x = (sin x)+(cos x)

And obviously it's worked.

But now, I want to pass the function (for example, (sin x)+(cos x))
through the command line. So, I could apply any function in that list
without recompiling the program, for example, calling that as 

\>test ((tan x)-pi)
I know that getCommandLine will return the function as a String.
So, how could I handle this String to apply the function in the
list?


Thank you all!


Willer Alves

Brazil



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