2 subst() calls within a single scope breaks compilation

[EconomicTouristsArmLate]

Having 2 subst() calls within a single scope breaks with the error message:

Redeclaration of capture group `0' previously declared at apache2.access.mtail:63:20-24

This example works fine:

gauge foo by asdf
gauge bar by asdf
/(?P<asdf>.+)/ {
  foo[subst(/\d/, "", $asdf)]++
  /.+/ {
    bar[subst(/\d/, "", $asdf)]++
  }
}

while this throws the Redeclaration of capture group 0 error:

gauge foo by asdf
gauge bar by asdf
/(?P<asdf>.+)/ {
  foo[subst(/\d/, "", $asdf)]++
  bar[subst(/\d/, "", $asdf)]++
}

previous report: #693

[jaqx0r]

The problem is that the regular expression creates the numbered match variables automatically, and the second regular expression then conflicts in the same scope as the first. There are two issues: 1) the numbered matches are not referenced so they should not matter 2) as the argument to subst the scope is even smaller and they should not be leaking into the calling scope Thanks for the report!

…

On Sat, 17 Feb 2024, 00:51 EconomicTouristsArmLate, < ***@***.***> wrote: Having 2 subst() calls within a single scope breaks with the error message: Redeclaration of capture group `0' previously declared at apache2.access.mtail:63:20-24 This example works fine: gauge foo by asdf gauge bar by asdf /(?P<asdf>.+)/ { foo[subst(/\d/, "", $asdf)]++ /.+/ { bar[subst(/\d/, "", $asdf)]++ } } while this throws the Redeclaration of capture group 0 error: gauge foo by asdf gauge bar by asdf /(?P<asdf>.+)/ { foo[subst(/\d/, "", $asdf)]++ bar[subst(/\d/, "", $asdf)]++ } previous report: #693 <#693> — Reply to this email directly, view it on GitHub <#810>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAXFX62OEXZ5S7FD7YDTHIDYT5P7XAVCNFSM6AAAAABDMCKE52VHI2DSMVQWIX3LMV43ASLTON2WKOZSGEZTQNRXGAZTAMA> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>