How to turn a string sentence into words with indicators?

[askjdhvl]

Hi everyone!

I am creating a command analysising program in LabVIEW 7.0.
I want to know how to turn a string sentence into words?

Such as:
Turn "I am a LabVIEW beginner" into "I", "am", "a", "LabVIEW" & "beginner" five indicators.

What should I do???

[becktho]

Just search for the delimiter (in the sentence given a "space"-character).

Have a look at this simple example.

Hope it helps.

Thomas

[G Liagre]

Hi,

A very simple way is to use the "scan from string function" in a loop with "%s" as a constant in the "format string" input.
This will take each word, you just have to put them in an array indexed by the loop.
The ending condition of the loop will be when the input sentence is "empty of words".
Don't forget to put a shift register for the input sentence, or it will take the first word at each iteration and will never stop!

I joined a picture of the code and front panel.

Best regards,
G Liagre

[askjdhvl]

Hi becktho!
Thank you for your reply!

I would like to know the function of "delimiter" in your program.
When I changed the input value of it.
Some bugs came out.

What is it?

[askjdhvl]

Hi G Liagre!
Thank you for your reply!

If I don't want the output indicator is an array indicator, just some string indicators are okay,
what should I do?

Besides, if the input string is empty, there is some problem on the " Scan from string".
How can I solve it?

[askjdhvl]

Hi G Liagre!
Thank you for your reply!

If I don't want the output indicator is an array indicator, just some string indicators are okay,
what should I do?

Besides, if the input string is empty, there is some problem on the " Scan from string".
How can I solve it?

[becktho]

Hi

The yellow string-function is the "Match Pattern" function.

The delimiter is the string that separates your words. So if you enter a "x" it won't work anymore, because your words are separated with a space-character.

Thomas

[G Liagre]

You can add at the end of the loop an array indexing and put each value of the array in a simple string.
But you need to know the number of word you enter before you do your program.
I don't think it's possible to programmatially create an indicator.

See the modifications I made in the picture

Best Regards,
G Liagre

[LV_Pro]

If you are not working with fixed length "command sentences" you won't know how many string indicators to have. Even if LabVIEW allowed you to programmatically create them (string indicators) you wouldn't be able to wire them to the connector pane to pass their values to other VI's. If you, as the earlier post mentions, place them into an array of string indicators, it can then easily be passed to the calling VI, where you can parse the commands, either by referencing a specific location in the array (i.e.:element 2 is the third word in the command sentence)or by other tools (search 1D array for instance). This technique of parsing a command string into an array and then looking a specific elements of the array is exactly what I have done in one of my recent projects to allow me to use a text "script" to determine what functions will occur and when in the execution of my program. If you use commas (,) or the TAB charecter as your delimiter it also allows you to easily read and edit the text file with a spreadsheet program, like Excel.
Placing them into a string array would also allow you to flexibly display them on the UI, as you can programmatically change how the array is displayed, or even wire the array into a table display.

Good luck,


Putnam Monroe

[askjdhvl]

Hi becktho!
Thank you for your reply!

Now I get more ideas from the delimiter.

Thank you very much!