fix assert seen on opening attachment from tdf#123163
I imagine it should have been seqPos-(idPos+2)
seems to be like this since the initial commit of
commit 091fe76b6329b4bb974987554369cbfadd8f2401
Date: Tue Jun 30 12:55:18 2015 +0300
tdf#87348 implement mso-next-textbox vml-style textbox chaining import
Change-Id: Ic2f527ede2102c01c8589d58d8c705d59b0a6ffe
Reviewed-on: https://gerrit.libreoffice.org/67450
Reviewed-by: Justin Luth <justin_luth@sil.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/oox/source/vml/vmlshape.cxx b/oox/source/vml/vmlshape.cxx
index 7118c92b..951c164 100644
--- a/oox/source/vml/vmlshape.cxx
+++ b/oox/source/vml/vmlshape.cxx
@@ -367,7 +367,8 @@ Reference< XShape > ShapeBase::convertAndInsert( const Reference< XShapes >& rxS
sal_Int32 seqPos = sLinkChainName.indexOf("_s",idPos);
if (idPos < seqPos)
{
id = sLinkChainName.copy(idPos+2,seqPos-idPos+2).toInt32();
auto idPosEnd = idPos+2;
id = sLinkChainName.copy(idPosEnd, seqPos - idPosEnd).toInt32();
seq = sLinkChainName.copy(seqPos+2).toInt32();
}
}