Problem with the $ sign by Match String

[Dimkakarch]

Hi!

I'm trying to cut out the information from NMEA sentences with LabVIEW 8.2

The first sign in each sentence is $ the last two are <CR> and <LF>.

So I tried to use Match Pattern.vi to cut out all between these signs (s. small vi in attachment).

The problem is the Match Pattern.vi just can't recognize the $ sign!

Thank you in advance!

Dimitri Karch

[_S_G]

The $ sign is a special character in a regular expression and has a particular meaning.  When you specify the regular expression to search for, use \$.

I tried it and all of your methods work.

[_S_G]

Take a look at this attachment.

In a regular expression, $ means end of string. 

If your input string is dogcatdogcat and your regular expression is cat, then the matched string is the first cat in the input string.  If your regular expression is cat$, then the matched string is the second cat.

So, when you tried to match the regular expression $, you were trying to match to an empty string at the end, which is why your function failed.  When you enter \$, the regular expression treats the $ as a character.

[Dimkakarch]

THANK YOU!!!!!!!!!!!!

It realy works! Thank you!