donatj/XLS-XML-Formula-Expander — pull request #2 by triple-j (2013-10-16 22:08:24+00:00)
Title: PHP 5.2 Support and Misc. Bug Fixes

Most changes are explained well enough in the commit. The only thing I wanted to clarify was the default formula added to expand_eq().

While I was debugging I noticed that some cells returned NULL even though they contained values. I discovered that the cells returning correctly had been previously used in a formula and their values where saved in 'staticvals'. In order to ensure a cell would return it's contained value, I added a default formula pointing to the current cell. That way the cell's value would be added to 'staticvals' and returned if a formula wasn't given.