Provided by: systemtap-doc_4.7-1_amd64 bug

NAME

       function::matched - Return a given matched subexpression.

SYNOPSIS

           matched:string(n:long)

ARGUMENTS

       n
           index to the subexpression to return. 0 corresponds to the entire regular expression.

DESCRIPTION

       returns the content of the n'th subexpression of the last successful use of the =~ regex
       matching operator. Returns an empty string if the n'th subexpression was not matched (e.g.
       due to alternation). Throws an error if the last use of =~ was a failed match, or if fewer
       than n subexpressions are present in the original regexp.

SEE ALSO

       tapset::regex(3stap)