function::matched(3stap) — Linux manual page

FUNC...TCHED(3stap)  A collection of standard strin  FUNC...TCHED(3stap)

NAME         top

       function::matched - Return a given matched subexpression.

SYNOPSIS         top

           matched:string(n:long)

ARGUMENTS         top

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

DESCRIPTION         top

       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         top

       tapset::regex(3stap)

COLOPHON         top

       This page is part of the systemtap (a tracing and live-system
       analysis tool) project.  Information about the project can be
       found at ⟨https://sourceware.org/systemtap/⟩.  If you have a bug
       report for this manual page, send it to systemtap@sourceware.org.
       This page was obtained from the project's upstream Git repository
       ⟨git://sourceware.org/git/systemtap.git⟩ on 2023-12-22.  (At that
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       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

SystemTap Tapset Reference    November 2023          FUNC...TCHED(3stap)

Pages that refer to this page: tapset::regex(3stap)

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