XSED is a fast, powerful, full-featured code editor which uses the Scintilla editor component. It is also based on the excellent PB editor SED created by Jose Roca.

XSED Features
Multiple document interface
Builds and runs XBLite programs
Multiple file drag and drop
Color syntax styling
Color text printing
Auto indent
Block indent/unindent
Block comment/uncomment
Optional line numbering
Instant help
Find and replace text
Text zoom in/out
User definable fonts and colors
User definable tab size and selection margin
Indentation guides
Most recently used file support
Code folding
Function finder dropbox
Built-in output console
User defined code templates
Autocompletion pop-up window