I'm using the search/split string function to extract part of a string. My string is in this format: "2005,31,19,47" There will always be 4 numbers separated by commas, however, they will not always be the same number of digits as here. I need to get the fourth number, in this case 47. I can't just search for "," and use an offset because the numbers are not always each this same length. Is there any way to search for the third comma? Thanks
One way to do this is to use the 'Scan from String' function with the format string set to "%f,%f,%f,%f". This pretty much tells LabVIEW that there are four floating point numbers separated by three commas with quotes all around.
You can also use a regular expression. I find this is more flexible than the scan from string. The regular expression "(\d*),(\d*),(\d*),(\d*)" would work. The nice thing about regular expressions is that you can be more creative about the format of the number (you can match both integers and floating point) and be more flexible about what separates the numbers. I have found the Scan from String to be very picky and it is very easy to have input strings not work as expected.
Mark Yedinak Certified LabVIEW Architect LabVIEW Champion
"Does anyone know where the love of God goes when the waves turn the minutes to hours?" Wreck of the Edmund Fitzgerald - Gordon Lightfoot
1. One of the regex experts will soon post a method using a regex. [...]
Or me!
Jim You're entirely bonkers. But I'll tell you a secret. All the best people are. ~ Alice For he does not know what will happen; So who can tell him when it will occur? Eccl. 8:7
