Regular expression for a JIRA identifier

Question

I\'m trying to extract a JIRA identifier from a line of text.

JIRA identifiers are of the form [A-Z]+-[0-9] - I have the following pattern:

foreach m         


        

Answer 1

If you include sample data with your question, you get the best shot at answers from those who might not have Jira, etc.

Here's another take on it-

my $matcher = qr/ (?: (?<=\A) | (?<=\s) )
                  ([A-Z]{1,4}-[1-9][0-9]{0,6})
                  (?=\z|\s|[[:punct:]]) /x;

while (  )
{
    chomp;
    my @matches = /$matcher/g;
    printf "line: %s\n\tmatches: %s\n",
        $_,
        @matches ? join(", ", @matches) : "none";
}

__DATA__
JIRA-001 is not valid but JIRA-1 is and so is BIN-10000,
A-1, and TACO-7133 but why look for BIN-10000000 or BINGO-1?

Remember that [0-9] will match 0001 and friends which you probably don't want. I think, but can't verify, Jira truncates issue prefixes to 4 characters max. So the regex I did only allows 1-4 capital letters; easy to change if wrong. 10 million tickets seems like a reasonably high top end for issue numbers. I also allowed for trailing punctuation. You may have to season that kind of thing to taste, wild data. You need the g and capture to an array instead of a scalar if you're matching strings that could have more than one issue id.

line: JIRA-001 is not valid but JIRA-1 is and so is BIN-10000,
        matches: JIRA-1, BIN-10000
line: A-1, and TACO-7133 but why look for BIN-10000000 or BINGO-1?
        matches: A-1, TACO-7133