The old code would also pass if the page has e.g. a literal "re f*"
string (since the tokenizer doesn't parse streams), the new one uses a
proper parser.

Change-Id: Iabb242b420c14f619f716f5ba47a1165a942f88a
Reviewed-on: https://gerrit.libreoffice.org/37223Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>