LabVIEW
Match nth occurrance
Solved!
(?:.*?(z)){7}
- (?:regex); Non-capturing parentheses group the regex so you can apply regex operators, but do not capture anything and do not create backreferences.
- . (dot); Matches any single character except line break characters \r and \n. Most regex flavors have an option to make the dot match line break characters too.
- *? (lazy star); Repeats the previous item zero or more times. Lazy, so the engine first attempts to skip the previous item, before trying permutations with ever increasing matches of the preceding item.
- (regex); Round brackets group the regex between them. They capture the text matched by the regex inside them that can be reused in a backreference, and they allow you to apply regex operators to the entire grouped regex.
- {n} where n is an integer >= 1; Repeats the previous item exactly n times.
But really, I found it here. http://www.perlmonks.org/?node_id=2150
You shouldn't feel dim. Nobody understands this stuff!
Jim
I forgot to ask.
Q - Why didn't little Jimmy understand Regular Expresions?
A - Because his mommy wouldn't let him play with matches! 
