SubEthaEdit

SubEthaEdit is a lean text editor with collaborative features.

Features include:

• Support for ActionScript, AppleScript, bash, C, C++, CSS, Cold Fusion, Diff, ERB, Erlang, Go, HTML, Java, Javascript, LaTeX, Lua, Objective-C, Objective-J, LassoScript, Pascal, Perl, PHP, Python, Ruby, SQL, Wiki and XML already included.
• Share documents with Bonjour.
• See all announced documents in your local network.
• See users available for collaboration in your local network.
• See other users' pictures (like iChat).
• Share documents over the Internet.
• Connect to others SubEthaEdits over the internet.
• Join existing local sessions from anywhere.
• Support for SubEthaEdit URLs.
• Fully IPv6 enabled.
• Automatic port mapping.
• Drag and drop iChat invites (10.5).
• TLS/SSL encryption of connections.
• Friendcasting.
• Anyone can type anywhere anytime.
• See other users' cursors and selections.
• Invite people to your documents.
• Invitations shown in dock icon badge.
• Authorize users to join private documents.
• Read-only access.
• Control collaboration with AppleScript.
• Kick users off your document.
• Integration with iChat and Mail.
• Collaborations exportable as webpage and PDF (via Print).
• Tabbed window interface.
• Code folding.
• AppleScript menu.
• Manipulate text with AppleScript.
• Regular expression search and replace.
• 8 different regex flavors: Posix, Posix Extended, Emacs, grep, GNU, Java, Perl, Ruby.
• Safari powered live updating HTML preview.
• Full Unicode support.
• Show invisible characters.
• File encodings support & conversion.
• "Open" and "Save" using administrator permissions.
• "Open" and "Save" hidden files.
• Line ending conversion.
• Encoding doctor.
• Mixed line ending assistance.
• Page guide for fixed-width layout.
• Command line tool.
• Autocompletion.
• Blockedit.
• Clickable URLs.
• Full featured printing.
• Enhanceable (e.g. with WordService or AppleScript)
• Text conversion, statistics, custom keybindings, etc.
• Splitview.
• Multiple views (Windows) per file.
• Persistent window positions.
• Indenting.
• Bracket matching and selection.
• Selfcontained, extensible syntax modes.
• Extensible Function popup menu.
• Per mode autocompletion dictionary.
• Copy code snippets as colored HTML.
• Customizable syntax colors.
• Extensible Syntax Highlighting.
• Fontification (bold and italic syntax).
• Per mode preferences.
• Integrates with Xcode as external editor.
• Integrates with FTP clients as external editor.