It would be nice to have a trim-all function.
Real world example:

• Preprocessing:
  • Regexp: (?s)((Backup Level:\s+(Incremental).*)Last Volume Bytes:\s+)(\S+) \4

• send an Item:

  zabbix_sender -z <IP> -s <HOST> -k bareos.meta -o "bareos-dir JobId 32: Bareos bareos-dir 17.2.4 (21Sep17):
  Build OS: x86_64-pc-linux-gnu debian Debian GNU/Linux 9.3 (stretch)
  JobId: 32
  Job: clouddata.2018-03-14_02.00.00_08
  Backup Level: Incremental, since=2018-03-13 02:00:02
  Client: "zfs-serv" 17.2.4 (21Sep17) x86_64-pc-linux-gnu,debian,Debian GNU/Linux 9.3 (stretch),Debian_9.0,x86_64
  FileSet: "backup-zfs-serv" 2018-03-06 12:19:01
  Pool: "Incremental" (From Job IncPool override)
  Catalog: "MyCatalog" (From Client resource)
  Storage: "File" (From Job resource)
  Scheduled time: 14-Mar-2018 02:00:00
  Start time: 14-Mar-2018 02:00:03
  End time: 14-Mar-2018 02:40:32
  Elapsed time: 40 mins 29 secs
  Priority: 10
  FD Files Written: 41,668
  SD Files Written: 41,668
  FD Bytes Written: 132,529,626,952 (132.5 GB)
  SD Bytes Written: 132,539,230,807 (132.5 GB)
  Rate: 54561.4 KB/s
  Software Compression: 16.0 % (lz4)
  VSS: no
  Encryption: no
  Accurate: no
  Volume name(s): Incremental-0044
  Volume Session Id: 32
  Volume Session Time: 1520334851
  Last Volume Bytes: 132,643,422,312 (132.6 GB)
  Non-fatal FD errors: 0
  SD Errors: 0
  FD termination status: OK
  SD termination status: OK
  Termination: Backup OK"
  

Result:

Value "132,643,422,312" of type "string" is not suitable for value type "Numeric (float)"

So here it would be nice to have a 'trim all' function to remove all ',' this must also work if I just get 0 (eg "Last Volume Bytes: 0 (0 B)")