How to write a script to edit another script ?

I have a script lets call it scriptA, that contains parameter names and assigned values. I am trying to write a script (scriptB) that will edit scriptA by changing both the parameter names and the values. I will be reading in a excel spreadsheet that contains the names and values that I will be assigning. How should I go about this?

Answer 1

[Sean de Wolski]

doc fprintf

Allows you to write text files.

[Rodriguez Pham]

I see, I have the idea of writing file now, but in terms actually making the edits, im curious whats the best way i should go about it.

For example if I have the line

temp = 2974;

if I replace the value 2974. I would have to first find where temp is in my script(which i can do) would I then search for the index after the '=' symbol and then grab until ';' symbol and replace that?

Answer 2

[Steven Lord]

Why not make scriptB into a function that accepts input arguments and/or reads in a data file in a known format and pass the varying parameters into that function?

[Rodriguez Pham]

I kind of understand what you are saying, but i need a little more elaboration. I am still a bit new to matlab.

[Steven Lord]

Rather than writing a script:

 PLACEHOLDER_NAME = 2*PLACEHOLDER_VALUE

whose PLACEHOLDER_* entries you replace with contents from another file, instead write a function:

 function y = timesTwo(x)
 y = 2*x;

You can then call timesTwo wherever you would invoke the script:

 z = timesTwo(17);

where 17 is data you read from a file or something.