There are lots of ways of doing comparisons of 2 lots of text. Although there isn’t anything native in FileMaker to do anything like this. We wanted to do something that did a visual comparison of 2 scripts in BaseElements, so you could see changes before and after when a script was modified.
This example requires FileMaker Pro 8.5 for the webviewer, but doesn’t require any plugins or internet access to work, so is quite a neat way of doing a visual comparison in FileMaker Pro.
The original code for this is from : http://code.google.com/p/google-diff-match-patch/