GREPaches with InDesign? Here's a palliative.
In InDesign CS3 we introduced a feature that allows you to perform searches for Regular Expressions. A while back, Anne-Marie "Her Geekness" Concepcion, over at InDesignSecrets.com, posted a link to a very useful document for those of us who want to tame the power of GREP. In InDesign CS4, using GREP has become even more useful because we can now use Regular Expressions to format text automatically, as Bob Levine describes in his post about GREP Styles.
I just came across a very nifty little AIR application called RegExr. It is a tool for editing and testing Regular Expressions which provides a simple interface to enter regular expressions, and visualizes matches in real-time editable source text. It also provides a handy snippet sidebar with descriptions and usage examples to make it easier to learn Regular Expressions through trial and error. View image.
Here's a link to the online version.
Thanks to Grant Skinner for this.