Find a character in a string

[labview99]

Hello,

In the program I have done, in the "Sincronismo" case I want to see if the "Modelo de bloque" has the character "B" and show this with a boolean. In my case the "Modelo de bloque" is an indicator, maybe because of that I can´t use in the "Match Pattern Function". So how can I do it for my program? 

[crossrulz]

I will give you two options, with the first being my preference.

1. Store the string value in a shift register.

2. User a Local Variable to read your indicator value.

[aeastet]

What is the data the you are going to have to evaluate? Is it going to be the same every time? It will be tough to look for the letter B with out finding B in other data that you may receive. Can you give examples of the different expected responses so the we can better help you find a good solution to your problem?

[pincpanter · Accepted solution]

Use a local variable: right click on the terminal of "Modelo de bloque" and choose Create->Local Variable.

The local will be created in write mode. Right click on the variable and select "Change to Read".

Beware: use local variables only when really needed; never where you can use a regular wire.

More information on local variables in the LabVIEW help and tutorials.

[labview99]

I am going to receive different strings in "Modelo de bloque", for example: 111222AAABBB, ABABABAB112222, AAAB111111AAB... also I can receive strings without the letter "B", for example, 22221111112222

[pincpanter]

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@labview99  ha scritto:

I am going to receive different strings in "Modelo de bloque", for example: 111222AAABBB, ABABABAB112222, AAAB111111AAB... also I can receive strings without the letter "B", for example, 22221111112222

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Fine. What's the question here?

[labview99]

Sorry,

Is the answer to the question of Tim

[labview99]

Thank you so much for your help Paolo!!

[labview99]

Hello,

I have tryed to do a program where I find the character "A" in one string and when it finds the first "A" I want to turn on the button of the array that corresponds.

I have done this program but it turns on all the "A" of the string and I want to turn on only the first A found in the string.

[GerdW]

Hi 99,

until now you were looking for letter "B", now you are looking for an "A"?

What's the big difference so you need to start a new thread?

When you only want to find the first occurance of a letter in a string then you should not compare all chars but Search1DArray to find it…