Strings and serial object

[spyfrog]

Hi.

Does anyone have any experience of using the serial object?
I am trying to use it to read values of a serial port that is connected to an GPS. I have no problem connecting and getting data, my problem is making something of it.

The problem is this - I need to divide this data into lines and process each line to get the GPS position.
However, I have a problem. If I use the edit object as temporary storage when the serial object has data, then I can't get a specific line (first line of edit object in this case) since Edit object doesn't seam to support that action. What I would like to do is simply put data into edit object and then read first line to use that, then use next line and so on.

So I put the output from the serial object into a list object with the add line action if serial object has data. The problem of this is that now the serial object and the list object has different concepts of rows. The serial object will happily put half rows in one row of list object. List object don't seam to listen to row breaks as edit box does. This makes the output unusable. I would have an example of text here but I can't post it since the forum will not accept it.

Does someone has a suggestion of how to break the serial object output into lines before adding lines in the list object or a way to use something like the edit object but with the possibility to "load" a specific line from the text? The row breaks seam to be correct in a edit box, so that would be the object to use if I could only get a specified row from it.

[wizkidweb]

How is the information outputted? It is possible you can tokenize the string in some cases.

[spyfrog]

Hi.

This is how the information looks like in the edit object:
$GPGGA,242790.799,,,,,0,00,,,M,0.0,M,,0000*22
$GPGSA,A,1,,,,,,,,,,,,,,,*1W
$GPRMC,272940.789,V,,,,,,,051208,,*22
$GPGGA,112041.799,,,,,0,00,,,M,0.0,M,,0000*23
$GPGSA,A,1,,,,,,,,,,,,,,,*1W
$GPGSV,3,2,22,13,67,105,,13,17,093,,14,76,642,,15, 70,421,*11
$GPGSV,3,2,12,02,34,302,,20,26,128,,07,21,182,,16, 19,074,*11
$GPGSV,3,3,12,08,16,122,,21,08,000,,27,08,153,,42, 18,128,*1A

(Don't try to make sens of the numbers, I've changed them since they gave away my position... )

A list object looks like this:
90.799,,,,,0,00,,,M,0.0,M,,0000*22@@
$GPGSA,A,1,,,,,,,,,,,,,,,*1W@@$GPRMC,272940.789,V, ,,,,,,051208,,*22@@$GPGGA,112041.799,,,,,0,00,,,M, 0.0,M,,0000*23@@
$GPGSA,A,1,,,,,,,,,,,,,,,*1W@@
$
GPGSV,3,2,22,13,67,105,,13,17,093,,14,76,642,,15,7 0,421,*11@@
$GPGSV,3,2,12,02,34,302,,20,26,128,,07,21,182,,16, 19,074,*11@@
$
GPGSV,3,3,12,08,16,122,,21,08,000,,27,08,153,,42,1 8,128,*1A@@

(Since I can't print all character here, you have to replace @ with an empty square, something I think mean rowbreak in MMFish).

[lembi2001]

why not use the rich edit object? You can select lines using this object.

[spyfrog]

Good idea.
However, I don't see any "select line" action?
How do you do?

[lembi2001]

i'll knock an example together for you. it involves getting the first character number of the line and the last character of the line and then selecting the text between the numbers.

[lembi2001]

Sorry for the double post - can't edit the previous one.

Here is the example i promised you

http://lembi2001.googlepages.com/Example.zip

commented to help you understand it

[spyfrog]

Thank you lembi2001!