Question

How can I search a whole string for a specific match.
It’ll contain both characters with int or decimal numbers
eg A12B32.25C-456D-75.E75
I’ll know that this will start with A and ends with E
I think I can use “^” and “$” right?
but i’m bit lost in other parts to check for character and int or decimal.
I’ll be glad if you can give the regex and explain it a bit :).

PS. D-75. is not mistyped…

Thanks in advance.

Answer 1

As a free-spacing regex, hoping I’m guessing correctly what you meant:

^                   # start of line
A(-?\d+\.?\d*)      # match "A", followed by a number with optional sign and decimal part
B(-?\d+\.?\d*)      # same with "B"
C(-?\d+\.?\d*)      # etc.
D(-?\d+\.?\d*)
E(-?\d+\.?\d*)
$                   # end of line

This will capture the numbers into backreferences 1-5. If you tell us how you’re planning to use the regex, I can refine my answer.