These is not an exhaustive feature list, but gives you some idea of the features present in Programmer™s Notepad.

Features:

Syntax Highlighting for lots of languages, configured with schemes
Multi-language user interface
Unlimited number of schemes supported, powerful syntax
highlighting supporting both user-defined and built-in schemes
Text Clips provide smart templates for text insertion
Code Folding/Outlining
Docking windows for: File Browser, Open Files, Text Clips, Tool Output, Find in Files results
Regular expression search and replace (full perl syntax)
Excellent external tool support with user-configurable
output matching click on errors and warnings to jump right to
the place in the file where they were generated
Split Views
Bookmarks (both numbered and plain)
Export to HTML (using CSS) and RTF
Code definition browsing and navigation (using Ctags)
Non fixed-width font support
Projects and Project Groups with multi-level folders and file system mirroring
Scripting with Python
Extensions support for developing add-ons with C++
Support for UTF8, 16 and various file encodings
Support for windows, unix and macintosh line endings
Tabbed MDI interface, with multi-level split views
Word-wrapping