Brad Tilley wrote:

I'm using boost regular expressions with good results on text files (html, xml, txt, etc), however, I'm having issues on binary file formats (i.e. MS Office files, etc). I've goggled around, but not found any hints. Just wondering if someone had experience doing REs on binary files. I've tried different open methods ios::binary, etc... still no luck.

I'm not sure about Boost.Regex, but Boost.Xpressive (Boost's alternative regex package) supports regexing on non-char data. See http://tinyurl.com/5teeqz. The version of Xpressive due out with 1.36 has expanded support for searching non-char data. You can get an idea for what things are possible by looking at the following code, taken from Xpressive's regression test: http://svn.boost.org/trac/boost/browser/branches/release/libs/xpressive/test... If you don't want to wait for 1.36, you can download the latest version of Xpressive from the Boost File Vault: http://www.boostpro.com/vault/index.php?direction=0&order=&directory=Strings%20-%20Text%20Processing& HTH, -- Eric Niebler BoostPro Computing http://www.boostpro.com