[PUSHED] Use local utility functions instead of SbxSimpleCharClass

[Markus Mohrhard (via Code Review)]

Hi,

Thank you for your patch!  It has been merged to LibreOffice.

If you are interested in details, please visit

    https://gerrit.libreoffice.org/3132

Approvals:
  Markus Mohrhard: Verified; Looks good to me, approved


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Gerrit-MessageType: merged
Gerrit-Change-Id: I7c4bc8cc44c0b4e78feb55dcd2c15b82c414e0ef
Gerrit-PatchSet: 2
Gerrit-Project: core
Gerrit-Branch: master
Gerrit-Owner: Arnaud Versini <arnaud.versini at gmail.com>
Gerrit-Reviewer: Arnaud Versini <arnaud.versini at gmail.com>
Gerrit-Reviewer: Markus Mohrhard <markus.mohrhard at googlemail.com>