Page column overflow

Question

Hi,

I am using XSLT -> FO to generate PDF.

I have generated two column pages (by setting column-count to 2 in region-body). But when the length of a string exceeds the size of the column and there is no spaces in the string - then it runs over to next column. I want to occupy the string within the same column.

The same happens when I am using table.

Is it possible to do without manually inserting zero-width space characters because I am not sure which string will overflow.

Thanks in Advance.