Kate is a multi-document, multi-view text editor by KDE. It features stuff like codefolding, syntaxhighlighting, dynamic word wrap, an embedded console, an extensive plugin interface and some preliminary scripting support.

Ya 'befi:

• MDI, window splitting, window tabbing
• Spell checking
• CR, CRLF, LF newline support
• Encoding support (utf-8, utf-16, ascii etc.)
• Encoding conversion
• Regular expression based find & replace
• Powerful syntax highlighting and bracket matching
• Code and text folding
• Infinite undo/redo support
• Block selection mode
• Auto indentation
• Auto completion support
• Shell integration
• Wide protocol support (http, ftp, ssh, webdav etc.) using kioslaves
• Plugin architecture for the application and editor component
• Customizable shortcuts
• Integrated command line
• Scriptable using JavaScript