 For instance (random example):, if you bring up the GL 0.0 core spec in acroread and search for COMPRESSED_TEXTURE_FORMATS you come up with ... nothing! Now look at pg. 000. It's right there in the middle of the page! It won't match the underscores in those tables for some reason. And I don't know of a regex PDF search tool that would allow me to kludge around this.  