Nuggit is a powerful and efficient text editor for Mac OS X. The app is based on the skEdit code base, so it is able to share bundles, scripts and snippets with skEdit.
The app supports Subversion source control management. Code completion for built-in functions, classes, etc. skEdit will even index your own files, so custom functions, classes, etc. will show up too.
Search one or many files quickly using regular expressions. Easily perform project-wide search-and-replace.