Simplify a bit iterators stuff
Simplify a bit iterators stuff

Change-Id: Ie2159d5eb8caf3d8f13d9c1ec49cc2bb6a0d94eb

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core