Digital Workshop

Hi

Is there any way to cut part of a text variable, or to count its length? Trying to produce a tabulated set of results, and can't seem to find any way to ensure two variables always are the same length?

eg of 2 current variables:

Paul Smith 5 times tables 17 out of 20
Sarah-Louis Jones 8 times tables 5 out of 20

Use length to find the length and substring to extract.

Mack

Expanding on that idea...

Set a dummy variable to have a value of say 22 'spaces'. Then when you've determined the length of 'Paul Smith' is 10, you replace the first 10 chars of the dummy. Alternatively, you could forget the dummy var and just pad the Paul Smith value with 22-10 space characters. (presumably you'd have to use ascii code or esc char for that?)

Another way to create tabulated results is to line up several ListBox objects. They can be without borders. Can hide the scrollbar. Can synchronize their vertical scroll positions using opus script. If you use Arrays for this, then you will have an easy way to define and recall these SETS by the array index number. Several prior Posts on array and object-oriented etc.

Expanding further...

"Paul Smith\t5 times tables\t17 out of 20"

tab or \t or if you're old enough in the UK tab a delightful clear sugar free drink.

Mack

Thanks very much. Do I have to enter a script action? If so, for a variable X, what do I type into the script box to find its' length?


Also, is there any command that will move, say the first two characters of a variable into another variable?

Thanks!

Hi

I tried setting a variable, a, to equal Paul Smith\t5 times tables\t17 out of 20 but when I did so, I didn't get anything tabbed, it just showed:

Paul Smith\t5 times tables\t17 out of 20

Hi

You wrote:

Use length to find the length and substring to extract

What do I need to type into the script dialogue box to use these commands? If I want to find out the length of a variable (say called variablea), and to get the result into another variable (say variableb) - what should I enter?

Many thanks

"Paul Smith\t5 times tables\t17 out of 20"

It's not a literal - you need to evaluate it in a script or use / assign to an expression.

Mack

Hi Mack,

I've never used scripting and have no idea what to enter into the script dialogue to get this to work. I followed the instructions as I understood them, and don't know what you mean when you say I need to evaluate it in a script or use / assign to an expression

In a script object or script action do something like:

myOutput = "Paul Smith\t5 times tables\t17 out of 20"


Then simply use the variable as normal.

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Opus uses expressions in various places including when you right click in a text box and 'Insert Variable' or when you create an action - 'Programming - Variables - Set Variable to Expression'

Mack

Thanks Mack - I'll give it a try!